Nuctech Company Limited

China

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2025 October (MTD) 2
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IPC Class
G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity 308
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material 286
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT] 92
A61B 6/03 - Computed tomography [CT] 69
G01N 23/10 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in luggage X-ray scanners 52
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09 - Scientific and electric apparatus and instruments 27
42 - Scientific, technological and industrial services, research and design 9
45 - Legal and security services; personal services for individuals. 8
37 - Construction and mining; installation and repair services 3
07 - Machines and machine tools 2
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1.

CHECK DEVICE

      
Application Number CN2025082932
Publication Number 2025/201103
Status In Force
Filing Date 2025-03-17
Publication Date 2025-10-02
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Huang, Qingping
  • Liang, Jinning
  • Li, Yue
  • Zhai, Jianglan
  • Zhou, Lifeng
  • Zhang, Linlin
  • Cheng, Yi

Abstract

A check device, comprising a bearing frame (1), a check apparatus (2) and a pressure measurement part. The check apparatus (2) is mounted inside the bearing frame (1), the check apparatus (2) being configured to emit radiation rays to an object to be checked so as to obtain a scanned image of said object. The pressure measurement part is connected to the bearing frame (1), wherein the pressure measurement part comprises N measurement mechanisms (3), the N measurement mechanisms (3) being used for measuring pressure values applied by the bearing frame (1) to N positions, and N being an integer greater than or equal to 1.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

2.

TRAY MOVING DEVICE AND CHECK SYSTEM

      
Application Number CN2025082928
Publication Number 2025/201102
Status In Force
Filing Date 2025-03-17
Publication Date 2025-10-02
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Huang, Qingping
  • Liang, Jinning
  • Li, Yue
  • Lu, Yanhua
  • Li, Bo
  • Cheng, Yi
  • Zhang, Linlin
  • Qiu, Minghua

Abstract

The present disclosure provides a tray moving device and a check system. The tray moving device comprises a conveying line body, a tray pushing mechanism and a first detection mechanism; the conveying line body is configured to convey in a first direction trays borne thereby; the tray pushing mechanism comprises a driving part and a pushing part which are connected to each other, the pushing part being located on a side of the conveying line body; the pushing part is configured to be driven by the driving part to push a tray at a predetermined position in a second direction, the second direction intersecting the first direction; when the pushing part reaches an end point of a pushing stroke thereof, the tray is pushed to leave the conveying line body, the position of the end point being associated with the geometric attribute of the tray, such that the pushing stroke satisfies a predetermined requirement.

IPC Classes  ?

  • B65G 47/84 - Star-shaped wheels or devices having endless travelling belts or chains, the wheels or devices being equipped with article-engaging elements
  • B64F 1/36 - Other airport installations

3.

GENERATION METHOD FOR CALIBRATION DATA, IMAGE RECONSTRUCTION METHOD, AND CALIBRATION PHANTOM

      
Application Number CN2025081832
Publication Number 2025/190268
Status In Force
Filing Date 2025-03-11
Publication Date 2025-09-18
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Tang, Zhi
  • Xu, Xiaofei
  • Shen, Le
  • Lei, Lei
  • Chang, Ming
  • Jin, Xin
  • Sun, Yunda

Abstract

The present invention provides a generation method for calibration data. The calibration data is used for correction of image reconstruction of a scanning imaging device. The method comprises: placing a calibration phantom in a scanning area formed by rays, wherein the calibration phantom comprises M sections respectively composed of M materials, the M materials have M physical property theoretical values, respectively, and M is a positive integer greater than or equal to 2; by means of a detector, collecting rays passing through the scanning area so as to acquire actual projection data; on the basis of the actual projection data, using an image reconstruction algorithm to reconstruct the calibration phantom to obtain a reconstructed image; performing segmentation processing on the reconstructed image to obtain M reconstructed sub-images, wherein the M reconstructed sub-images respectively correspond to the M sections; for the M reconstructed sub-images, respectively calculating M physical property measurement values corresponding to the M sections; and generating calibration data on the basis of the M physical property theoretical values and the M physical property measurement values.

IPC Classes  ?

  • G06T 11/00 - 2D [Two Dimensional] image generation

4.

CONVEYING SYSTEM FOR INSPECTION DEVICE

      
Application Number 18699389
Status Pending
Filing Date 2022-09-29
First Publication Date 2025-07-24
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Huang, Qingping
  • Hong, Mingzhi
  • Yang, Jianxue
  • Li, Guipei
  • Zhang, Liguo

Abstract

A conveying system for an inspection device, including an imaging system, used to scan and inspect an object; a first transmission mechanism configured to convey the object to the imaging system; and a supporting structure intersecting an inspection surface of the imaging system, where the object is pushed to slide along the supporting structure and passes through the imaging system. The first transmission mechanism includes: a chassis; a driving device; a lead screw driven by the driving device; a first slide rail, where an extension direction of the first slide rail is parallel to an extension direction of the lead screw; and a sliding mechanism connected to the lead screw, where the lead screw may drive the sliding mechanism to move along the extension direction of the lead screw, so that the sliding mechanism pushes the object to slide on the first slide rail and the supporting structure.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays

5.

INSPECTION DEVICE AND INSPECTION METHOD

      
Application Number 18833357
Status Pending
Filing Date 2023-12-25
First Publication Date 2025-07-24
Owner
  • NUCTECH COMPANY LIMITED (China)
  • Tsinghua University (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Chang, Ming
  • Wang, Zinan

Abstract

An inspection device and an inspection system are provided. The inspection device includes a first conveying mechanism (10), a radiographic imaging inspection mechanism (20), a stacking mechanism (30), a second conveying mechanism (40) and a tomographic imaging inspection mechanism (50). The first conveying mechanism (10) is used to convey a battery cell. The radiographic imaging inspection mechanism (20) is used to inspects the battery cell. The stacking mechanism (30) is used to stack battery cells into a battery cell group. The second conveying mechanism (40) is used to convey the battery cell group. The tomographic inspection mechanism (50) is used to inspect the battery cell group.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • B07C 5/34 - Sorting according to other particular properties
  • G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 10/54 - Reclaiming serviceable parts of waste accumulators

6.

SYSTEM AND METHOD FOR POSITIONING SUSPECTED ARTICLE

      
Application Number 18572586
Status Pending
Filing Date 2023-07-20
First Publication Date 2025-07-17
Owner
  • Nuctech Company Limited (China)
  • Tsinghua University (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Yuanjing
  • Huang, Qingping
  • Xu, Yingjia
  • Ding, Hui
  • Zhou, Yong
  • Liu, Junhao
  • Guo, Weijun

Abstract

Provided are a system and a method for positioning a suspected article. The system includes a truss indicating mechanism defining a coordinate system having X, Y and Z directions perpendicular to each other. The truss indicating mechanism includes a first direction moving rail disposed on a truss body in one of the three directions; a second direction moving rail movably disposed on the first direction moving rail in a another of the three directions, the second direction moving rail is movable in the first direction relative to the first direction moving rail; and a ranging indicating device movably disposed on the second direction moving rail, the ranging indicating device is configured to be movable in the second direction relative to the second direction moving rail, and is configured to feed back position information of the suspected article in a to-be-inspected cargo by using coordinate information of the coordinate system.

IPC Classes  ?

  • B65G 43/00 - Control devices, e.g. for safety, warning or fault-correcting
  • G01V 5/226 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography

7.

METHOD AND APPARATUS OF PROCESSING POSITIONING INFORMATION, ELECTRONIC DEVICE, AND STORAGE MEDIUM

      
Application Number 18573744
Status Pending
Filing Date 2023-07-19
First Publication Date 2025-07-17
Owner
  • Nuctech Company Limited (China)
  • Tsinghua University (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Su N, Yunda
  • Shen, Le
  • Pl, Zhipeng
  • Wang, Shuo

Abstract

The present disclosure provides a method and an apparatus of processing a positioning information, an electronic device, and a storage medium, which may be applied to a field of a positioning technology. The method includes: acquiring, in response to a positioning request, a distance information of each of a plurality of base stations for a terminal device; determining, based on a plurality of distance information, a first position information of the terminal device in a first reference system determined based on the plurality of base stations; and determining a positioning information of the terminal device for a target object based on the first position information and a position information of the target object, where the position information of the target object is determined from a tomography result.

IPC Classes  ?

  • H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
  • G06T 7/70 - Determining position or orientation of objects or cameras

8.

X-BAND SMALL-FOCUS ACCELERATOR FOR NON-DESTRUCTIVE TESTING

      
Application Number 18879244
Status Pending
Filing Date 2023-06-30
First Publication Date 2025-07-10
Owner
  • NUCTECH COMPANY LIMITED (China)
  • Tsinghua University (China)
  • GRANPECT COMPANY LIMITED (China)
Inventor
  • Liu, Yaohong
  • Chen, Huaibi
  • Jia, Wei
  • Zha, Hao
  • He, Yu
  • Li, Jian
  • Guan, Weiqiang
  • Jin, Ming
  • Ye, Qing
  • Li, Junjiang
  • Xu, Yan

Abstract

An X-band small-focus accelerator for non-destructive testing is provided, including: a magnetron used to generate microwaves; an accelerating tube used to accelerate electrons, where the accelerating tube is an X-band accelerating tube; a microwave system connected between the magnetron and the accelerating tube, and used to feed the microwaves generated by the magnetron into the accelerating tube; an electron gun connected to the accelerating tube, and used to emit an electron beam into the accelerating tube; and an electron gun power supply used to supply power to the electron gun, where the accelerating tube, the microwave system, the magnetron and the electron gun power supply are arranged in sequence in a front-rear direction of the accelerator to determine a length of the accelerator.

IPC Classes  ?

  • H05H 9/02 - Travelling-wave linear accelerators
  • G01N 23/02 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material
  • H05H 7/22 - Details of linear accelerators, e.g. drift tubes

9.

CT DEVICE

      
Application Number CN2024137461
Publication Number 2025/139709
Status In Force
Filing Date 2024-12-06
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Yuanjing
  • Huang, Qingping
  • Feng, Bo
  • Zhang, Liguo
  • Li, Guipei

Abstract

Provided is a CT device, being related to the technical field of radiation scanning. The CT device comprises a rack; multiple supporting apparatuses arranged on the rack; a rotatable portion, the rotatable portion being able to rotate around a rotation axis when driven by a driving wheel, and the rotatable portion being jointly supported by the multiple supporting apparatuses during the rotation process; a scanning apparatus arranged on the rotatable portion, the scanning apparatus being used for scanning an object to be examined; an axial limiting mechanism comprising a first pressing roller set and a second pressing roller set, wherein the first pressing roller set and the second pressing roller set are separately arranged on the end faces on two sides of the rotatable portion in the direction of the rotation axis; the first pressing roller set and the second pressing roller set each comprise n pressing rollers, n being an integer larger than 3, and at least a part of the outer circumferential face of each pressing roller is in contact with the end face of the rotatable portion so as to limit the movement of the rotatable portion in the direction of the rotation axis.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01V 5/226 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography

10.

VEHICLE HEAD AVOIDANCE METHOD, APPARATUS AND SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM

      
Application Number CN2024141447
Publication Number 2025/140103
Status In Force
Filing Date 2024-12-23
Publication Date 2025-07-03
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Zheng, Dachuang
  • Li, Dong
  • Zhang, Chang
  • Tu, Junjie
  • Sun, Yunda

Abstract

The present disclosure relates to a vehicle head avoidance method, apparatus and system, and a computer-readable storage medium. The vehicle head avoidance method comprises: acquiring a vehicle image to be subjected to detection which is collected by means of a visible-light area-array camera; acquiring a focal length of the camera by means of correcting intrinsic and extrinsic parameters of the camera; processing said vehicle image to obtain a pixel size of a vehicle head; acquiring the distance between the camera and the vehicle head; acquiring an actual size of the vehicle head on the basis of the focal length of the camera, the distance between the camera and the vehicle head, and the pixel size of the vehicle head; and performing vehicle head avoidance on the basis of the actual size of the vehicle head. In the present disclosure, a linear-array image collection device is replaced with a visible-light area-array camera, thereby reducing the use cost and installation cost, and reducing the occupied area.

IPC Classes  ?

  • G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
  • G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
  • G06T 7/11 - Region-based segmentation

11.

RADIATION DETECTION SYSTEM AND RADIATION DETECTION APPARATUS

      
Application Number CN2024141778
Publication Number 2025/140175
Status In Force
Filing Date 2024-12-24
Publication Date 2025-07-03
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
  • NUCTECH (BEIJING) COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Meng, Hui
  • Song, Quanwei
  • Fan, Xuping
  • Shi, Junping
  • Zong, Chunguang
  • Xu, Yanwei
  • Liu, Bicheng
  • Yu, Weifeng
  • Liu, Lei

Abstract

A radiation detection system (700), comprising a first ray scanning device (106) and a second ray scanning device (107). The first ray scanning device (106) comprises a first target point (1061), which emits rays for scanning a first area (1081) of an object (108). The second ray scanning device (107) comprises a second target point (1071), wherein the second target point (1071) is closer to the ground (701) than the first target point (1061), and the second target point (1071) emits rays for scanning a second area (1082) of the object (108), at least part of the second area (1082) being located out of the first area (1081), and at least part of the second area (1082) being located below the first area (1081) in a vertical direction. Further provided is a radiation detection apparatus (800), comprising a bearing device, which comprises a door-type structure which defines a detection channel (802), wherein the radiation detection system (700) is mounted on the bearing device and performs scanning on a stationary or moving object (108) in the detection channel (802).

IPC Classes  ?

  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

12.

MILLIMETER-WAVE IMAGING DEVICE, SECURITY INSPECTION DEVICE, AND SECURITY INSPECTION METHOD

      
Application Number CN2024142218
Publication Number 2025/140285
Status In Force
Filing Date 2024-12-25
Publication Date 2025-07-03
Owner
  • BEIJING SHENMUTEK COMPANY LIMITED (China)
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhao, Ziran
  • Jin, Yingkang
  • Zheng, Lei
  • Ding, Xianli
  • He, Xiaoyi
  • Jing, Handan
  • Zheng, Zhimin
  • Ji, Yongwei
  • He, Huishao
  • Long, Jiao
  • He, Xinghua

Abstract

A millimeter-wave imaging device, comprising: a first millimeter-wave transceiving array (100), which comprises a row of first millimeter-wave transmitting antennas (100T) and a row of first millimeter-wave receiving antennas (100R); and a second millimeter-wave transceiving array (200), which comprises a row of second millimeter-wave transmitting antennas (200T) and a row of second millimeter-wave receiving antennas (200R), wherein the first millimeter-wave transceiving array (100) and the second millimeter-wave transceiving array (200) are respectively configured to transmit and receive millimeter waves to construct a first holographic image and a second holographic image of an object to be inspected. The millimeter-wave imaging device is further configured such that the second millimeter-wave receiving antenna (200R) receives millimeter waves of the first millimeter-wave transmitting antenna (100T) to form a first transmission image, or such that the first millimeter-wave receiving antenna (100R) receives millimeter waves of the second millimeter-wave transmitting antenna (200T) to form a second transmission image. The present application further relates to a security inspection device and a security inspection method.

IPC Classes  ?

  • G01V 8/00 - Prospecting or detecting by optical means
  • G01V 3/12 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with electromagnetic waves

13.

DISPLAY METHOD AND APPARATUS FOR RADIOGRAPHIC INSPECTION SYSTEM, AND RADIOGRAPHIC INSPECTION SYSTEM AND METHOD

      
Application Number CN2024142222
Publication Number 2025/140287
Status In Force
Filing Date 2024-12-25
Publication Date 2025-07-03
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Wang, Lu
  • Li, Dongmao
  • Fan, Yanqiang
  • Sun, Hongbo

Abstract

A display method and apparatus for a radiographic inspection system, and a radiographic inspection system and method. The display method for a radiographic inspection system comprises: acquiring M frames of radiographic data collected by a detector (S110); separately processing the M frames of radiographic data to obtain M frames of images, wherein the M frames of images are suitable for being displayed on a display screen of a radiographic inspection system (S120); on the basis of the M frames of images, generating video data (S130); and dynamically displaying the video data at a first predetermined frequency (S140). Compared with the static display of a single X-ray image, the display frequency is greatly improved, and the system inspection efficiency is improved.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays

14.

POWER SUPPLY CONTROL CIRCUIT AND SECURITY CHECK DEVICE

      
Application Number CN2024142632
Publication Number 2025/140377
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Huang, Qingping
  • Liu, Yunyang
  • Liang, Jinning
  • Ding, Hui
  • Tang, Hu
  • Zhou, Yong
  • Zhan, Xiaolei

Abstract

The present disclosure relates to the technical field of security check, and provides a power supply control circuit and a security check device. The power supply control circuit comprises: a first power supply module; a second power supply module, wherein one of the first power supply module and the second power supply module comprises an uninterruptible power supply unit, and the other comprises a mains power supply unit; and a power supply switching module, wherein the power supply switching module comprises a first end, a second end, and a third end, the first end is connected to the first power supply module, the second end is connected to the second power supply module, and the third end is connected to a target apparatus; and the power supply switching module is configured to: when the power supply of the first end is abnormal, disconnect the first end and the third end, and connect the second end and the third end within a first preset time; and when the power supply of the first end returns to normal, disconnect the second end and the third end, and connect the first end and the third end within a second preset time, wherein the first preset time and the second preset time are configured such that: during the execution of switching operations, the target apparatus does not experience a power loss.

IPC Classes  ?

  • H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over

15.

TRAIN OPEN-TOP WAGON MEASUREMENT AND INSPECTION SYSTEM AND METHOD

      
Application Number CN2024142725
Publication Number 2025/140407
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Yuan, Xin
  • Li, Jian
  • Wang, Yongming
  • Ni, Xiulin

Abstract

A train open-top wagon measurement and inspection system and method. The system comprises: a LiDAR group, which is used for generating a laser to scan a train and collecting profile information of the train, wherein the profile information is point cloud data; a wagon identification apparatus, which is used for measuring the wheelbase of the train, determining the wagon type of each wagon of the train on the basis of the wheelbase and the point cloud data, and generating a coupler signal between wagons of the train; and a detection module, which is used for segmenting, on the basis of the coupler signal, the profile information of the train into wagon profile information taking a wagon as a unit, calculating the volume of loaded objects in the wagon on the basis of the wagon profile information when the wagon is an open-top wagon, and identifying foreign matters in the loaded objects.

IPC Classes  ?

  • G01S 17/88 - Lidar systems, specially adapted for specific applications

16.

ANALYSIS AND TEST DEVICE AND SPENT FUEL REPROCESSING SYSTEM

      
Application Number CN2024142780
Publication Number 2025/140428
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zong, Chunguang
  • Li, Yuanjing
  • Yang, Yigang
  • Wang, Feng
  • Fan, Xuping
  • Meng, Hui
  • Shi, Junping
  • Wang, Dongyu
  • Ming, Shenjin

Abstract

An analysis and test device and a spent fuel reprocessing system. The analysis and test device comprises: a base (1); a shielding body (7), which is fixed to the base (1) and comprises a main body portion (71) and a sealing portion (72), the sealing portion (72) being configured to seal an opening (711) in the main body portion (71) and being capable of being opened and closed; an accelerator assembly (3) and a radiation source (4), wherein the accelerator assembly (3) is located on one side of the shielding body (7) in a first direction (x) and is movably mounted on the base (1) in the first direction (x), and the radiation source (4) is fixed to one side of the accelerator assembly (3) in the first direction (x) and is located in the shielding body (7); a measurement assembly (5), which is fixed in the shielding body (7), is located, in the first direction (x), on the side of the radiation source (4) away from the accelerator assembly (3), and is configured to accommodate a test object, so as to implement a test mode; a calibration assembly (6), which is detachably mounted in the shielding body (7) by means of the opening (711), is located, in the first direction (x), on the side of the radiation source (4) away from the accelerator assembly (3), and is configured to accommodate a calibration object, so as to implement a calibration mode; and a detector assembly (8), which is arranged on one side of the shielding body (7) in a second direction (y) and is movably mounted on the base (1) in the first direction (x).

IPC Classes  ?

  • G01N 23/09 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being neutrons

17.

CARGO INSPECTION DEVICE AND INSPECTION METHOD THEREOF

      
Application Number CN2024143092
Publication Number 2025/140519
Status In Force
Filing Date 2024-12-27
Publication Date 2025-07-03
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Zong, Chunguang
  • Xu, Yanwei
  • Wang, Dongyu
  • Liu, Bicheng
  • Fu, Bing
  • Gao, Kejin

Abstract

A cargo inspection device and an inspection method thereof. The cargo inspection device comprises: a carrier (10) which is configured to move relative to an inspected cargo (G) in a preset direction during cargo inspection; a scanning imaging inspection apparatus (20) provided with a ray scanning assembly (21) used for scanning the inspected cargo (G) through rays; and a smell inspection apparatus (30) provided with a gas sampling assembly (31) for performing gas sampling on the inspected cargo (G), wherein the ray scanning assembly (21) and the gas sampling assembly (31) are both arranged on the carrier (10), and the ray scanning process realized by the ray scanning assembly (21) and the gas sampling process of the gas sampling assembly (31) at least partially coincide in time.

IPC Classes  ?

  • G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
  • G01V 5/20 - Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
  • G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
  • G01N 21/84 - Systems specially adapted for particular applications
  • G01N 1/22 - Devices for withdrawing samples in the gaseous state
  • G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
  • G01T 1/00 - Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation

18.

METHOD AND APPARATUS FOR DETERMINING ENERGY CALIBRATION OF RADIATION DETECTOR, DEVICE, AND MEDIUM

      
Application Number 18879236
Status Pending
Filing Date 2024-02-06
First Publication Date 2025-07-03
Owner
  • NUCTECH (BEIJING) COMPANY LIMITED (China)
  • NUCTECH COMPANY LIMITED (China)
  • Tsinghua University (China)
Inventor
  • Jin, Zengxue
  • Zhao, Kun
  • Wu, Yao
  • Hu, Chunxuan
  • Li, Yulan
  • Zhang, Tong

Abstract

Provided are a method and an apparatus for determining an energy calibration of a radiation detector, a device, and a medium. The method includes: acquiring (S110) a background energy spectrum of a plurality of known nuclides, where the background energy spectrum is obtained by the radiation detector detecting the plurality of known nuclides; performing (S120) differential processing on the background energy spectrum to obtain a channel address-difference diagram, where the channel address-difference diagram includes a plurality of valid peak information determined from a plurality of full-energy peak information; determining (S130) a target coefficient according to the channel address-difference diagram, where the target coefficient characterizes a calibration coefficient in initial energy channel address function; and determining (S140) a target energy channel address function according to the channel address-difference diagram and the initial energy channel address function, where the target energy channel address function characterizes the energy calibration of the radiation detector. The apparatus for determining an energy calibration of a radiation detector includes an acquisition module (610), a differencing module (620), a first determination module (630), and a second determination module (640).

IPC Classes  ?

  • G01T 7/00 - Details of radiation-measuring instruments

19.

CALIBRATION METHOD AND CALIBRATION SYSTEM FOR PERFORMING ENERGY SPECTRUM CALIBRATION ON SCANNING IMAGING DEVICE

      
Application Number CN2024137100
Publication Number 2025/139678
Status In Force
Filing Date 2024-12-05
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Shen, Le
  • Zhang, Li
  • Xing, Yuxiang
  • Zhao, Zhenhua
  • Sun, Yunda

Abstract

Provided in the present disclosure is a calibration method for performing energy spectrum calibration on a scanning imaging device, which comprises: when an energy spectrum calibration phantom is located in a scanning area formed by rays, obtaining a geometric relationship between a ray source, the energy spectrum calibration phantom, and a detector according to relative positions of the ray source, the energy spectrum calibration phantom, and the detector; collecting rays that pass through the scanning area by means of the detector to obtain real projection data; obtaining a physical attribute of the energy spectrum calibration phantom, wherein the physical attribute is pre-determined according to the material of which the energy spectrum calibration phantom is made or is calculated according to an image reconstruction method; calculating theoretical projection data using a plurality of predetermined basis spectra on the basis of the physical attribute of the energy spectrum calibration phantom and the geometric relationship; performing calibration on an energy spectrum parameter according to the theoretical projection data and the actual projection data, so as to obtain an optimized energy spectrum parameter; and determining the optimized energy spectrum parameter as an energy spectrum calibration parameter.

IPC Classes  ?

  • G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or

20.

CALIBRATION METHOD AND SYSTEM FOR GEOMETRIC CALIBRATION OF SCANNING AND IMAGING EQUIPMENT

      
Application Number CN2024141119
Publication Number 2025/140049
Status In Force
Filing Date 2024-12-20
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Shen, Le
  • Zhang, Li
  • Xing, Yuxiang
  • Zhao, Zhenhua
  • Sun, Yunda

Abstract

Provided is a calibration method for calibrating a scanning and imaging device. The calibration method comprises: by means of a detector, collecting rays which have passed through a geometric calibration phantom so as to obtain detector data, the detector data comprising an actual projection position of the rays on the detector after the rays have passed through the geometric calibration phantom; obtaining initial ray source parameters and initial detector parameters; according to the initial ray source parameters, the initial detector parameters, and the positional relationship of the geometric calibration phantom with respect to a ray source and the detector, obtaining a theoretical projection position of the geometric calibration phantom on the detector by means of geometric calculation; constructing an optimization function of the deviation between the actual projection position and the theoretical projection position in terms of the ray source parameters and the detector parameters; and according to the optimization function, determining the ray source parameters and the detector parameters which correspond to the minimum deviation value as optimized ray source parameters and optimized detector parameters, and determining the optimized ray source parameters and the optimized detector parameters as geometric calibration parameters.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

21.

CALIBRATION METHOD AND CALIBRATION SYSTEM FOR CALIBRATING SCANNING IMAGING DEVICE

      
Application Number CN2024141121
Publication Number 2025/140050
Status In Force
Filing Date 2024-12-20
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Shen, Le
  • Zhang, Li
  • Xing, Yuxiang
  • Zhao, Zhenhua
  • Sun, Yunda

Abstract

Provided is a calibration method for calibrating a scanning imaging device, comprising: when a geometric calibration phantom is located in a scanning area formed by rays, executing a geometric calibration step, which comprises: collecting rays that pass through the scanning area by means of a detector to obtain detector data; performing calibration on a ray source parameter and a detector parameter by utilizing the detector data, so as to obtain an optimized ray source parameter and an optimized detector parameter, and determining the optimized ray source parameter and the optimized detector parameter as geometric calibration parameters; and when an energy spectrum calibration phantom is located in a scanning area formed by rays, executing an energy spectrum calibration step, which comprises: collecting rays that pass through the scanning area by means of the detector, and obtaining real projection data related to the energy spectrum phantom; and performing calibration on an energy spectrum parameter according to a geometric relationship and a physical attribute of the energy spectrum calibration phantom by utilizing the actual projection data, so as to obtain an optimized energy spectrum parameter, and determining the optimized energy spectrum parameter as an energy spectrum calibration parameter.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

22.

NEUTRON POISON MONITORING APPARATUS

      
Application Number CN2024141466
Publication Number 2025/140108
Status In Force
Filing Date 2024-12-23
Publication Date 2025-07-03
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zong, Chunguang
  • Li, Yuanjing
  • Yang, Yigang
  • Ming, Shenjin
  • Song, Quanwei
  • Liu, Bicheng
  • Wang, Dongyu

Abstract

Provided in the present disclosure is a neutron poison monitoring apparatus. The neutron poison monitoring apparatus comprises: a container, which is used for accommodating a liquid to be tested that contains a neutron poison; a neutron source, which is configured to emit neutrons to said liquid; a detector, which is configured to detect the number of neutrons and/or the number of photons in said liquid; a multi-channel scaler, which is configured to send to a neutron poison monitoring control apparatus the number of neutrons and/or the number of photons detected by the detector; the neutron poison monitoring control apparatus, which is configured to control the neutron source to emit the neutrons to said liquid, control the detector to detect the number of neutrons or the number of photons in said liquid within a time range after the neutron source is controlled to stop emitting neutrons to said liquid, so as to obtain a plurality of detection values, use a background value to correct each detection value among the plurality of detection values, so as to obtain a plurality of corrected values, and use the plurality of corrected values to determine the concentration of the neutron poison in said liquid; and a shielding device, which is configured to shield external interference received by said liquid and the detector.

IPC Classes  ?

  • G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or

23.

MOBILE INSPECTION DEVICE AND MOBILE INSPECTION SYSTEM

      
Application Number CN2024141804
Publication Number 2025/140184
Status In Force
Filing Date 2024-12-24
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • NUCTECH (BEIJING) COMPANY LIMITED (China)
Inventor
  • Yang, Yang
  • Shi, Junping
  • Song, Quanwei
  • Fan, Xuping
  • Meng, Hui

Abstract

A mobile inspection device and a mobile inspection system. The mobile inspection device comprises a moving body (1), a rear cabin (2), an accelerator chamber (3) and a detector arm (5). The mobile inspection device has a container truck scanning mode and a train scanning mode which can be switched from one to the other. The rear cabin (2) is rotatably arranged on the moving body (1), and is configured to rotate to a counterweight position in the container truck scanning mode and to rotate to a retracted position in the train scanning mode; the detector arm (5) is arranged on the moving body (1), and is provided with a first detector (6); the detector arm (5) is configured to have a folded state and an unfolded state, and is in the unfolded state in the container truck scanning mode and in the folded state in the train scanning mode; and the accelerator chamber (3) is arranged in the rear cabin (2), and is configured to emit ray beams from a first beam outlet (201) and a second beam outlet (202) of the rear cabin (2) in the container truck scanning mode and the train scanning mode, respectively.

IPC Classes  ?

  • G01N 23/02 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material

24.

RADIATION DOSE MEASUREMENT APPARATUS AND RADIATION DOSE MEASUREMENT METHOD

      
Application Number CN2024141821
Publication Number 2025/140187
Status In Force
Filing Date 2024-12-24
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Wenjian
  • Li, Jianmin
  • Li, Shuwei
  • Zhai, Xingliang
  • Zou, Xiang

Abstract

A radiation dose measurement apparatus (200) and a radiation dose measurement method. The radiation dose measurement apparatus (200) comprises: an ionization chamber (210), which defines an accommodating space (211), wherein the accommodating space (211) is filled with a gas, and the gas is configured to react with rays entering the accommodating space (211), so as to generate electrons; and N VDMOS devices (100), which are arranged in the accommodating space (211), wherein N is an integer greater than or equal to 1, a change occurs in a source-drain reverse current-voltage curve of at least one of the N VDMOS devices (100) in response to the electrons, and the radiation dose of the rays is obtained by means of the source-drain reverse current-voltage curves before and after the change.

IPC Classes  ?

25.

HUMAN BODY SCANNING DEVICE

      
Application Number CN2024142198
Publication Number 2025/140274
Status In Force
Filing Date 2024-12-25
Publication Date 2025-07-03
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Cao, Shuo
  • Wu, Wanlong
  • Sang, Bin
  • Ding, Guangwei
  • Li, Dongying
  • Sun, Xiuping

Abstract

A human body scanning device, comprising a supporting column (200) and an imaging assembly. The imaging assembly can move up and down along the supporting column (200) so as to scan a human body. The imaging assembly comprises an arm frame (300), a ray source (301) located at a first end portion (306) of the arm frame (300), and a detector located at a second end portion (305) of the arm frame (300). The human body scanning device further comprises an energy absorbing structure; the energy absorbing structure comprises an energy absorbing portion and a flexible member (410); one end of the flexible member (410) is fixedly connected to the second end portion (305) of the arm frame (300); and the energy absorbing portion enables the flexible member (410) to apply a tensile force to the second end portion (305) of the arm frame (300) so as to prevent the second end portion (305) of the arm frame (300) from vibrating.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
  • A61B 6/04 - Positioning of patientsTiltable beds or the like

26.

TWO-DIMENSIONAL GRID MAPPING METHOD, APPARATUS, DEVICE, AND STORAGE MEDIUM

      
Application Number CN2024142417
Publication Number 2025/140338
Status In Force
Filing Date 2024-12-25
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Cui, Jin
  • Zhang, Haitao
  • Tan, Yang
  • Qin, Xiaodong
  • Zhu, Xingzhong

Abstract

A two-dimensional grid mapping method, an apparatus, a device, and a storage medium, which belong to the field of mapping. The two-dimensional grid mapping method comprises: obtaining, in real time, first pose data and second pose data of a robot at the current moment, the first pose data being pose data determined by a two-dimensional lidar, and the second pose data being pose data determined by a combination navigation device, where the pose data determined by the combination navigation device is pose data obtained by merging position data measured by a satellite navigation device and orientation data measured by an inertial measurement unit device (S110); merging the first pose data and the second pose data, and obtaining merged pose data (S120); and constructing a two-dimensional grid map according to the merged pose data (S130).

IPC Classes  ?

  • G01C 21/32 - Structuring or formatting of map data
  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
  • G01S 19/47 - Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial

27.

DETECTOR APPARATUS AND RAY IRRADIATION APPARATUS

      
Application Number CN2024142668
Publication Number 2025/140386
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Huang, Qingping
  • Liang, Jinning
  • Han, Lina
  • Zhao, Xin
  • Cheng, Yi
  • Zhou, Lifeng
  • An, Xuchao

Abstract

Disclosed are a detector apparatus and a ray irradiation apparatus, being related to the technical field of radiation scanning. The detector apparatus comprises a detector box that defines a first accommodating space, one side of the detector box having a first slit for rays to pass through; a shielding assembly being located in the first accommodating space and defining a second accommodating space, one side of the shielding assembly having a second slit for rays to pass through, and the second slit being aligned with the first slit; S detectors being located in the second accommodating space and being configured to detect rays passing through the first slit and the second slit, S being an integer greater than or equal to 1; and a first sealing member being configured to cover the first slit, wherein the first sealing member allows rays to pass through so as to enter the first slit; the first sealing member works in conjunction with the detector box to enable the first accommodating space to form a sealed, waterproof space.

IPC Classes  ?

  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
  • G01N 23/02 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material
  • G21F 9/00 - Treating radioactively contaminated materialDecontamination arrangements therefor

28.

ENERGY SPECTRUM DATA READOUT CIRCUIT, X-RAY DETECTOR, AND DATA READOUT METHOD

      
Application Number CN2024142737
Publication Number 2025/140415
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Yuanjing
  • Hao, Jiajun
  • Huang, Qingping
  • Feng, Bo
  • Li, Bo
  • Yan, Meiju

Abstract

The present disclosure provides an energy spectrum data readout circuit, an X-ray detector, and a data readout method. The energy spectrum data readout circuit comprises an acquisition circuit and a control circuit. The acquisition circuit comprises: a plurality of sub-channels used for receiving a current pulse signal generated on the basis of an X-ray, and generating a detection signal on the basis of the current pulse signal; a multiplexer connected to the plurality of sub-channels that selects and outputs a detection signal of at least one channel from among the plurality of sub-channels according to a channel selection signal; and a trigger circuit connected to the plurality of sub-channels and is used for generating a global trigger signal according to an over-threshold identifier received from the plurality of sub-channels, and outputting an address of an over-threshold channel according to an address readout request. The control circuit is connected to the acquisition circuit and is used, in response to a trigger signal from the acquisition circuit, for generating a chip selection signal and an address readout request, and providing the signal and request to the acquisition circuit.

IPC Classes  ?

  • G01T 1/36 - Measuring spectral distribution of X-rays or of nuclear radiation

29.

ANOMALY DETECTION METHOD AND APPARATUS, AND COMPUTER READABLE STORAGE MEDIUM

      
Application Number CN2024142754
Publication Number 2025/140423
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
  • NUCTECH JIANGSU COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Yang, Liu
  • Sun, Yunda
  • Li, Bowen
  • Li, Yingting
  • Li, Wei
  • Zhang, Jin

Abstract

The present disclosure relates to the technical field of anomaly detection, and provides an anomaly detection method and apparatus, and a computer readable storage medium. The method comprises: acquiring first customs declaration data to be detected, wherein said first customs declaration data comprises a plurality of fields associated with corresponding items and addresses, the plurality of items corresponding to the plurality of fields can form a plurality of item sets, and each item set comprises two items among the plurality of items; calculating an evaluation distance between two addresses associated with the two items in each item set; performing association rule mining on a plurality of pieces of historical second customs declaration data to obtain an evaluation index representing an association relationship between the two items in each item set; using an anomaly detection algorithm to process the evaluation distance and the evaluation index so as to obtain a first result representing whether there is a risk between the two items in each item set or not; and on the basis of the first result, determining whether there is an anomaly in the first customs declaration data or not.

IPC Classes  ?

  • G06F 18/2433 - Single-class perspective, e.g. one-against-all classificationNovelty detectionOutlier detection

30.

RISK DETECTION METHOD AND APPARATUS, AND STORAGE MEDIUM

      
Application Number CN2024142756
Publication Number 2025/140424
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
  • NUCTECH JIANGSU COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Shi, Zhengyan
  • Yang, Liu
  • Sun, Yunda
  • Li, Bowen
  • Li, Yingting
  • Li, Wei
  • Zhang, Jin

Abstract

The present disclosure provides a risk detection method and apparatus, and a storage medium. The risk detection method comprises: identifying ingredient content information of an edible commodity that is comprised in customs clearance data, in order to obtain a plurality of ingredient names and corresponding content data; comparing the plurality of ingredient names and the corresponding content data with those in a predetermined food safety standard database to determine a first risk value of the edible commodity; on the basis a food access knowledge base, determining a second risk value of a plurality of pieces of access information of the edible commodity that are comprised in the customs clearance data; acquiring historical risk information of the edible commodity; on the basis of the historical risk information, determining a third risk value of the edible commodity; and on the basis of the first risk value, the second risk value and the third risk value, determining an import risk value of the edible commodity.

IPC Classes  ?

  • G06Q 30/018 - Certifying business or products
  • G06Q 10/0831 - Overseas transactions
  • G06F 16/903 - Querying
  • G06F 40/216 - Parsing using statistical methods
  • G06F 40/284 - Lexical analysis, e.g. tokenisation or collocates
  • G06N 5/022 - Knowledge engineeringKnowledge acquisition
  • G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]
  • G06N 3/0455 - Auto-encoder networksEncoder-decoder networks

31.

ANALYSIS AND DETECTION APPARATUS AND SPENT FUEL REPROCESSING SYSTEM

      
Application Number CN2024142768
Publication Number 2025/140426
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zong, Chunguang
  • Li, Yuanjing
  • Yang, Yigang
  • Ming, Shenjin
  • Song, Quanwei
  • Shi, Junping
  • Fan, Xuping
  • Wang, Dongyu
  • Meng, Hui
  • Wang, Feng
  • Zhang, Li

Abstract

The present disclosure relates to an analysis and detection apparatus and a spent fuel reprocessing system. The analysis and detection apparatus comprises: a base; a carrying platform movably arranged on the base in a first direction and a second direction perpendicular to each other in a horizontal plane; an accelerator assembly and a radiation source, wherein the radiation source is located on one side of the accelerator assembly in the second direction, and the radiation source is used for receiving radiations emitted by the accelerator assembly to generate particles; a measuring assembly fixedly mounted relative to the base and used for accommodating an object under detection to implement a detection mode; a calibration assembly detachably arranged and used for accommodating a calibration object to implement a calibration mode; a shielding body used for providing radiation protection for the radiation source, the measuring assembly, and the calibration assembly; and a detector assembly arranged on one side of the shielding body in the first direction; wherein the accelerator assembly, the shielding body, and the detector assembly are all arranged on the carrying platform, and the carrying platform is configured to drive the shielding body to reach or leave a protection position in the first direction.

IPC Classes  ?

  • G01T 1/16 - Measuring radiation intensity
  • G21C 17/06 - Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
  • G21F 9/06 - Processing
  • G01T 7/00 - Details of radiation-measuring instruments

32.

RADIATION DOSE RATE CONTROL METHOD AND CONTROL APPARATUS, AND ACCELERATOR AND RADIATION APPARATUS

      
Application Number CN2024143230
Publication Number 2025/140569
Status In Force
Filing Date 2024-12-27
Publication Date 2025-07-03
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Li, Jianmin
  • Liu, Yaohong
  • Gao, Feng
  • Wang, Haokun
  • Liu, Xiying

Abstract

A radiation dose rate control method, which relates to the technology of radiation, and an accelerator (100). The control method is used for an electron linear accelerator (100) comprising a microwave source, an electron gun (102) and an accelerating tube (104). The control method comprises: when an electron linear accelerator (100) outputs a beam, monitoring a first event used for indicating a change of a beam output parameter (S610), wherein the beam output parameter comprises a pulse of an electron gun (102) and a microwave power of a microwave source, and the first event is determined by means of radiation protection requirements; and in response to monitoring the first event, cutting off the pulse of the electron gun (102), and switching a first microwave power of the microwave source to a second microwave power, so that the leakage dose rate of a radiation safety boundary is less than or equal to a first preset threshold (S620), wherein the level of dark current in an accelerating tube (104) under the second microwave power is less than or equal to a second preset threshold. Further provided are a radiation dose rate control apparatus, an accelerator (100), and a radiation apparatus.

IPC Classes  ?

33.

APPARATUS AND METHOD FOR TRAINING AND EVALUATING AI MODEL

      
Application Number CN2024143372
Publication Number 2025/140628
Status In Force
Filing Date 2024-12-27
Publication Date 2025-07-03
Owner
  • NUCTECH JIANGSU COMPANY LIMITED (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Zheng, Ju
  • Yang, Liu
  • Li, Bowen
  • Sun, Yunda

Abstract

Provided in the present application are an apparatus and method for training and evaluating an AI model. The method comprises: creating a process task template applied to a containerized application management platform, wherein the process task template comprises: process configuration information associated with a training and evaluation task of an AI model, and a stage flag corresponding to each step in the training and evaluation task; and in response to receiving a start command for a continuous training and evaluation task: querying the process task template, splitting the training and evaluation task into stages on the basis of the process configuration information and the stage flag, so as to construct a task in a training stage, performing product escape analysis on the basis of the task in the training stage, so as to generate a product escape analysis result associated with the task in the training stage, starting the task in the training stage on the basis of a product escape result, and when the task in the training stage reaches a preset training stage node, starting the concurrent running of one or more tasks in an evaluation stage without interrupting the task in the training stage.

IPC Classes  ?

  • G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting

34.

MOBILE RADIATION DETECTION APPARATUS

      
Application Number 19000736
Status Pending
Filing Date 2024-12-24
First Publication Date 2025-06-26
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Li, Po
  • Li, Yulan
  • Zhao, Kun
  • Wang, Kai
  • Pan, Hongwei
  • Li, Liheng
  • Wang, Fengli

Abstract

This disclosure relates to a mobile radiation detection apparatus, including: a movable mounting bracket; a radiation detector for detecting a radiation type and/or a radiation dose of an object to be detected movably mounted on the movable mounting bracket relative to the movable mounting bracket; an adjustment device provided between the radiation detector and the movable mounting bracket for adjusting a height and/or an angle of the radiation detector relative to the movable mounting bracket; and in detecting the object to be detected, the mobile radiation detection apparatus moves the movable mounting bracket and adjusts the height and/or angle of the radiation detector relative to the movable mounting bracket and the radiation detector approaches and aligns with the object to be detected.

IPC Classes  ?

  • G01T 1/24 - Measuring radiation intensity with semiconductor detectors

35.

STATIC CT DEVICE AND CT EXAMINATION METHOD

      
Application Number CN2024136697
Publication Number 2025/130611
Status In Force
Filing Date 2024-12-04
Publication Date 2025-06-26
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Xinbin
  • Wang, Zhentian
  • Huang, Qingping
  • Sun, Yunda
  • Shen, Le
  • Feng, Bo

Abstract

A static CT device and a CT examination method. The device comprises one or more sets of examination assemblies, each set of examination assembly comprising: a multi-point distributed source (S) configured to emit radiation beams; a detector (DT) facing the multi-point distributed source to receive the radiation beams emitted by the multi-point distributed source, wherein the multi-point distributed source and the detector define an examination channel; and gratings (G0, G1, G2) arranged in the examination channel between the multi-point distributed source and the detector. The gratings have a periodic structure configured to diffract the radiation beams passing through the gratings to form an interference pattern.

IPC Classes  ?

36.

RADIATION IMAGING DEVICE, CT IMAGING DEVICE, AND IMAGING METHOD

      
Application Number CN2024137108
Publication Number 2025/130641
Status In Force
Filing Date 2024-12-05
Publication Date 2025-06-26
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Xinbin
  • Wang, Zhentian
  • Huang, Qingping
  • Sun, Yunda
  • Shen, Le
  • Feng, Bo

Abstract

The present disclosure provides a radiation imaging device. The device comprises: a radiation source, configured to emit radiation beams; a detector, configured to receive the radiation beams from the radiation source, wherein the radiation source and the detector define an examination channel; and at least one grating arranged in the examination channel between the radiation source and the detector. The at least one grating has a curved surface or is a groove-shaped surface having a plurality of angled planar sections, and the curved surface or the groove-shaped surface faces the radiation source.

IPC Classes  ?

37.

RADIATION IMAGING DEVICE AND METHOD

      
Application Number CN2024137379
Publication Number 2025/130659
Status In Force
Filing Date 2024-12-06
Publication Date 2025-06-26
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Xinbin
  • Wang, Zhentian
  • Huang, Qingping
  • Sun, Yunda
  • Shen, Le
  • Feng, Bo

Abstract

A radiation imaging device and a radiation imaging method. The radiation imaging device comprises: a radiation source (S), an N-row detector (DT) and at least one grating (G), wherein the grating (G) is arranged in an inspection channel defined by the radiation source (S) and the N-row detector (DT) and is located between the radiation source (S) and the N-row detector (DT). Each row of detectors of the N-row detector (DT) extends in the transverse direction of the inspection channel, and the N rows of detectors (DT) are arranged along the inspection channel. The grating (G) extends in a plane substantially parallel to the arrangement of the N-row detector (DT), and the at least one grating (G) has a periodic structure, the periodic structure being configured to diffuse the rays passing through the grating (G) to form an interference pattern, the direction of extension of the structural unit of the periodic structure being at a non-zero angle to the direction of extension of the inspection channel.

IPC Classes  ?

  • G01N 23/041 - Phase-contrast imaging, e.g. using grating interferometers

38.

RADIATION IMAGING DEVICE, CT IMAGING DEVICE, AND METHOD THEREOF

      
Application Number CN2024137723
Publication Number 2025/130672
Status In Force
Filing Date 2024-12-09
Publication Date 2025-06-26
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Xinbin
  • Wang, Zhentian
  • Huang, Qingping
  • Sun, Yunda
  • Shen, Le
  • Feng, Bo

Abstract

A radiation imaging device, a CT imaging device, a radiation imaging method, and a CT imaging method. The radiation imaging device comprises: a radiation source (S), a detector (DT), and at least one grating (G0, G1, G2), the at least one grating (G0, G1, G2) being arranged on an inspection channel defined between the radiation source (S) and the detector (DT). The grating (G0, G1, G2) shields only a portion of the radiation beam such that a portion of the radiation beam is received by the detector (DT) after passing through the grating (G0, G1, G2).

IPC Classes  ?

  • G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
  • A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment

39.

VEHICLE CHASSIS INSPECTION DEVICE AND METHOD

      
Application Number CN2024141406
Publication Number 2025/131115
Status In Force
Filing Date 2024-12-23
Publication Date 2025-06-26
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Rui, Xiaoliang
  • Yuan, Xin
  • Wang, Yongming
  • Ni, Xiulin

Abstract

A vehicle chassis inspection device and method. The vehicle chassis inspection device comprises a control unit (13), and a reflective sensor (11), an imaging unit (14), an illumination intensity measurement unit (12) and a light-emitting unit (15) which are communicationally connected to the control unit (13). The control unit (13) is configured to determine, when a first signal is received, that a vehicle enters a preset photographing range, and control the imaging unit (14) and the light-emitting unit (15) to be turned on. The imaging unit (14) is configured to photograph a vehicle chassis to obtain a vehicle chassis image. The illumination intensity measurement unit (12) is configured to measure the illumination intensity on the basis of a preset acquisition frequency. The control unit (13) is further configured to determine whether the illumination intensity is within a preset range, and when the illumination intensity is determined to be less than the preset range, on the basis of a preset light intensity compensation relationship, determine the compensation light intensity corresponding to the illumination intensity, and control the light-emitting unit (15) to provide the compensation light intensity, so that the illumination intensity is within the preset range.

IPC Classes  ?

  • G08G 1/042 - Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
  • H04N 23/50 - Constructional details
  • B62D 21/00 - Understructures, i.e. chassis frame on which a vehicle body may be mounted

40.

CT DEVICE AND DETECTION METHOD

      
Application Number CN2024137107
Publication Number 2025/130640
Status In Force
Filing Date 2024-12-05
Publication Date 2025-06-26
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Huang, Qingping
  • Feng, Bo
  • He, Quan
  • Guo, Jin
  • Xie, Yunpeng

Abstract

The present disclosure provides a CT device and a detection method. The CT device comprises a conveying apparatus; a rotating apparatus; a first control apparatus, which is connected to the conveying apparatus and used for collecting the moving distance of the conveying apparatus and calculating, on the basis of the moving speed of the conveying apparatus and the rotational speed of the rotating apparatus, the rotation angle of the rotating apparatus that corresponds to the moving distance; a second control apparatus, which is connected to the rotating apparatus and used for collecting the rotation angle of the rotating apparatus; and a calculation apparatus, which is connected to the first control apparatus and the second control apparatus and used for receiving the moving distance collected by the first control apparatus, the rotation angle calculated by the first control apparatus, and the rotation angle collected by the second control apparatus, for making the moving distance collected by the first control apparatus correspond one-to-one to the rotation angle collected by the second control apparatus on the basis of the rotation angle calculated by the first control apparatus to obtain synchronous data, and for generating a fluoroscopic image on the basis of detection data and the synchronous data.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

41.

ROBOT PARKING METHOD AND APPARATUS, DEVICE, AND READABLE STORAGE MEDIUM

      
Application Number CN2024140907
Publication Number 2025/131040
Status In Force
Filing Date 2024-12-20
Publication Date 2025-06-26
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Cui, Jin
  • Zhang, Yuzhe
  • Peng, Zhi
  • Zhao, Yanping
  • Li, Hongtao

Abstract

A robot parking method and apparatus, a device, and a readable storage medium. The robot parking method comprises: in a work start area, obtaining first laser radar data of the surrounding environment around a robot by means of a laser radar on the robot (S201); according to the first laser radar data, determining first coordinate information of the robot in a first coordinate system (S202); obtaining second coordinate information of a first marker, which is in a parking area, in the first coordinate system (S203); according to a first relative position relationship between the first coordinate information and the second coordinate information, determining third coordinate information of the first marker in a second coordinate system in which the laser radar is located (S204); according to the third coordinate information, generating a first movement path for the robot (S205); and moving along the first movement path from the work start area to the parking area (S206).

IPC Classes  ?

  • G01C 21/20 - Instruments for performing navigational calculations
  • G01S 17/88 - Lidar systems, specially adapted for specific applications
  • G01S 17/06 - Systems determining position data of a target

42.

SYSTEM AND METHOD FOR POSITIONING DETECTOR OF TRANSMISSIVE INSPECTION DEVICE FOR RECEIVING DETECTION RAYS

      
Application Number CN2024141331
Publication Number 2025/131112
Status In Force
Filing Date 2024-12-23
Publication Date 2025-06-26
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Feng, Shunchang
  • Zong, Chunguang
  • Shi, Junping
  • Yu, Weifeng
  • Liu, Bicheng
  • Song, Quanwei
  • Fan, Xuping
  • Chi, Haojie
  • Liu, Lei
  • Meng, Hui
  • Wang, Qiangqiang
  • Guo, Yiwei
  • Li, Hongqi
  • Tan, Huiwen

Abstract

A system for positioning a detector of a transmissive inspection device for receiving detection rays. The system comprises: ray position detection and display portions (8), which are configured to detect and display the position of a ray beam plane (3) emitted by a ray source (2), wherein the projection of the ray beam plane (3) in a first plane opposite to a ray emission direction of the ray source (2) is a straight line; a visible-light emitting component (7), which is configured to emit a visible-light beam plane (10), wherein the projection of the visible-light beam plane (10) in the first plane is a straight line; and an adjustment apparatus (9), which is connected to the visible-light emitting component (7), and is configured to adjust a visible-light emission direction of the visible-light emitting component (7) or adjust the position of the visible-light emitting component (7) in a direction perpendicular to the visible-light beam plane (10), so as to adjust the visible-light beam plane (10) to the position of the ray beam plane (3) displayed by the ray position detection and display portions (8), so that a detector (5) is arranged or adjusted by taking the visible-light beam plane (10) as a reference plane, and thus the detector (5) can receive rays emitted by the ray source (2). Further provided is a method for positioning a detector of a transmissive inspection device for receiving detection rays.

IPC Classes  ?

  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
  • G01C 15/00 - Surveying instruments or accessories not provided for in groups

43.

BIOLOGICAL INFORMATION COLLECTION DEVICE AND METHOD THEREOF

      
Application Number CN2024141365
Publication Number 2025/131114
Status In Force
Filing Date 2024-12-23
Publication Date 2025-06-26
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Li, Jianmin
  • Wu, Xianghao
  • Gu, Jingyu
  • Dai, Jundi
  • Xie, Hengliang
  • Shen, Jianhua
  • Zhao, Shichen

Abstract

A biological information collection device and method, the biological information collection device comprising: a bracket (10); a carrier (20) movably arranged on the bracket (10); a position sensor (30) provided on the carrier (20) and configured to sense the relative position of a collection object (CO) and the carrier (20) at least in the direction of height; a biological information collector (40) arranged on the carrier (20) and configured to collect biological information of the collection object (CO); a lifting driver (50) in drive connection with the carrier (20) and configured to drive the carrier (20) to ascend and descend relative to the bracket (10); and a controller (60) in signal connection with the position sensor (30), the biological information collector (40), and the lifting driver (50), and configured to enable the lifting driver (50) to drive the carrier (20) on the basis of the sensing result of the position sensor (30), and enable the biological information collector (40) to collect biological information of the collection object (CO).

IPC Classes  ?

  • F16M 11/18 - Heads with mechanism for moving the apparatus relatively to the stand
  • A61B 5/00 - Measuring for diagnostic purposes Identification of persons
  • A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof
  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
  • G06V 40/18 - Eye characteristics, e.g. of the iris
  • G06V 10/12 - Details of acquisition arrangementsConstructional details thereof

44.

COLLIMATOR ASSEMBLY, OPTICAL-MECHANICAL ADJUSTMENT APPARATUS, AND X-RAY IMAGING SYSTEM

      
Application Number CN2024141456
Publication Number 2025/131118
Status In Force
Filing Date 2024-12-23
Publication Date 2025-06-26
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Huang, Qingping
  • Zhou, Lifeng
  • Zhao, Xin
  • Cheng, Yi
  • Han, Lina
  • Zhang, Linlin
  • An, Xuchao

Abstract

A collimator assembly (1), comprising: at least one position adjusting portion (11), wherein the at least one position adjusting portion (11) is located at the end portion of the collimator assembly (1) and is used for adjusting the position of the collimator assembly (1); a collimator body portion (12) with at least one position adjusting portion (11) being located on the collimator body portion (12), wherein the collimator body portion (12) comprises a first adjustment component (121), a left collimator component (122), a right collimator component (123), and adjustment holes (124) located on the left collimator component (122) and the right collimator component (123), the left collimator component (122) and the right collimator component (123) being arranged side by side and an collimator slit (125) being provided therebetween, and each adjustment component (121) passing through the corresponding adjustment hole (124) so as to adjust the width of the collimator slit (125); a shielding box (13), the shielding box (13) being fixed to the collimator body portion (12) and being located on the side surface opposite to the position adjusting portion (11), and the shielding box (13) being provided on both the top portion and the bottom portion thereof a gap (131) corresponding to the collimator slit (125).

IPC Classes  ?

  • G21K 1/02 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
  • A61B 6/06 - Diaphragms

45.

CARCASS INSPECTION AND ANALYSIS SYSTEM

      
Application Number CN2024141469
Publication Number 2025/131120
Status In Force
Filing Date 2024-12-23
Publication Date 2025-06-26
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Dong, Zhe
  • Wang, Qinchan
  • Wang, Hao
  • Wang, Jianhui
  • Zhang, Jinyu
  • Sun, Hongbo

Abstract

Disclosed in the present application is a carcass inspection and analysis system. The carcass inspection and analysis system comprises: an inspection device comprising at least two inspection channels for carcasses to pass through, wherein the at least two inspection channels are arranged in a first direction, a transmitter and a receiver are respectively provided on two opposite sides of each inspection channel in the first direction, and each transmitter is configured to emit rays to a receiver, so that at least one beam plane suitable for scanning and inspecting a carcass passing through an inspection channel is formed in each inspection channel; and a hanging and transferring device comprising a conveying mechanism and hangers arranged on the conveying mechanism, wherein each hanger comprises at least two hanging portions, each hanging portion can hang a carcass, and the conveying mechanism is configured to drive the hangers to pass through the inspection device in a second direction, and to cause each hanging portion to pass through a corresponding inspection channel in the second direction, the first direction intersecting the second direction. The carcass inspection and analysis system disclosed in the present application has a relatively high inspection precision, thus facilitating accurate analysis and grading of carcasses.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01N 21/13 - Moving of cuvettes or solid samples to or from the investigating station

46.

RAY CONVERSION TARGET, RAY SOURCE AND IRRADIATION DEVICE

      
Application Number CN2024136358
Publication Number 2025/124215
Status In Force
Filing Date 2024-12-03
Publication Date 2025-06-19
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Liu, Yaohong
  • Liu, Jinsheng
  • Gao, Feng
  • Zhang, Xiaotong
  • Li, Weike
  • Li, Jianmin
  • Li, Yuanjing
  • Zhang, Liang

Abstract

A ray conversion target (100), comprising a target body (1), a target portion (2) and a heat dissipation portion, wherein the target portion (2) is arranged inside the target body (1), and the target portion (2) has a first face and a second face arranged opposite each other, the first face being configured to generate rays; and the heat dissipation portion is configured to accommodate a heat dissipation fluid and is at least partially located on the second face of the target portion (2). A fluid inlet of the heat dissipation portion is divided into N first sub-inlets (31), each of the first sub-inlets (31) being in communication with a corresponding first flow channel (32), where N is an integer greater than or equal to 2. Each of the first sub-inlets (31) is different from at least one of the other first sub-inlets in terms of size, and the N first sub-inlets (31) are configured to regulate the flow rate of the fluid in each first flow channel (32). Further provided are a ray source and an irradiation device.

IPC Classes  ?

  • H01J 35/10 - Rotary anodesArrangements for rotating anodesCooling rotary anodes
  • H01J 35/12 - Cooling non-rotary anodes
  • G21K 5/00 - Irradiation devices

47.

ELECTRIC DEVICE, CHARGING DEVICE, CHARGING SYSTEM, AND CHARGING METHOD

      
Application Number CN2024136626
Publication Number 2025/124244
Status In Force
Filing Date 2024-12-04
Publication Date 2025-06-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Cui, Jin
  • Li, Hongtao
  • Bai, Feilong
  • Lv, Fangfang
  • Kang, Lei
  • Tan, Yang

Abstract

Disclosed in the present application are an electric device, a charging device, a charging system, and a charging method The electric device comprises a charged contact, a first switch circuit, a second switch circuit, a voltage measurement circuit, a battery, and a first control apparatus. After receiving a measurement voltage signal that is output by the voltage measurement circuit, the first control apparatus controls the first switch circuit to be switched off and controls the second switch circuit to be switched on, so that the safety of the electric device and the charging device during a charging idle period is improved, and a charging control process is simplified.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H01M 10/44 - Methods for charging or discharging

48.

CHANNEL DETECTION METHOD, APPARATUS AND SYSTEM

      
Application Number CN2024135441
Publication Number 2025/119077
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-12
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Meng, Defang
  • Wang, Yongming

Abstract

The present disclosure relates to the technical field of channel detection. Provided are a channel detection method, apparatus and system. The channel detection method comprises: receiving point cloud data from a scanning LiDAR arranged on at least one side of a channel; on the basis of the point cloud data, determining the contour of an object to be detected that enters the channel and the distance from said object to the at least one side of the channel; on the basis of the contour of said object and the distance from said object to the at least one side of the channel, determining the category of said object; acquiring a restricted-object category corresponding to the type of the channel; and when the category of said object comprises the restricted-object category corresponding to the type of the channel, outputting alarm prompt information.

IPC Classes  ?

  • G01S 17/04 - Systems determining the presence of a target
  • G01S 17/88 - Lidar systems, specially adapted for specific applications
  • G01S 17/08 - Systems determining position data of a target for measuring distance only

49.

HEAT DISSIPATION DEVICE FOR MARX GENERATOR, AND MARX GENERATOR

      
Application Number CN2024135628
Publication Number 2025/119095
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-12
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Liang
  • Liu, Yaohong
  • Liu, Jinsheng
  • Chen, Huaibi
  • Tang, Chuanxiang

Abstract

Provided is a heat dissipation device for a Marx generator. The device comprises N cooling plates arranged in sequence; a switch assembly of a Marx generator is fixed on each cooling plate, and the switch assemblies on the N cooling plates are sequentially connected in series; each cooling plate has a water inlet and a water outlet, cooling water flows into the cooling plate from the water inlet and flows out from the water outlet, and the water inlets and water outlets of different cooling plates are connected by means of water cooling lines to achieve the flow of the cooling water across the cooling plates; the cooling water flows in from the water inlet of the first cooling plate, flows out from the water outlet of the first cooling plate, sequentially passes through m cooling plates except the second cooling plate, then flows into the water inlet of an N-th cooling plate, flows out from the water outlet of the N-th cooling plate, sequentially flows through k cooling plates, and then flows out from the water outlet of the second cooling plate, wherein m+k=N-3, 0≤m≤N-3, 0≤k≤N-3, and the m cooling plates and the k cooling plates are different from each other.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

50.

MEAT COMPOSITION CALCULATION METHOD AND SYSTEM

      
Application Number CN2024135632
Publication Number 2025/119097
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-12
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Sun, Yunda
  • Fu, Gang
  • Liu, Jingjing
  • Wang, Qiang
  • Zhang, Xiaomin
  • Wu, Shanshan

Abstract

A meat composition calculation method. The method comprises: executing dual-energy X-ray scanning on a piece of meat, so as to obtain scanned image data of the piece of meat; converting the expression form of the scanned image data, so as to obtain image conversion data of the piece of meat; training a meat composition calculation model on the basis of a plurality of meat samples, so as to obtain a trained meat composition calculation model; and on the basis of the image conversion data, using the trained meat composition calculation model to calculate meat composition information of the piece of meat.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
  • G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting

51.

OBJECT INSPECTION SYSTEM AND OBJECT INSPECTION METHOD

      
Application Number CN2024136312
Publication Number 2025/119154
Status In Force
Filing Date 2024-12-03
Publication Date 2025-06-12
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Wang, Hao
  • Lin, Weizhi
  • Wang, Qinchan
  • Yang, Xu
  • Sun, Hongbo

Abstract

The present disclosure relates to the field of object inspection, the field of radiation scanning, the field of security inspection or other fields. Provided are an object inspection system. The system comprises: a conveying apparatus, which comprises a first conveying mechanism and a third conveying mechanism for conveying an object; a ray scanning apparatus, which comprises a second conveying mechanism configured to convey the object from the first conveying mechanism to a ray scanning area and convey the object to the third conveying mechanism; and a control apparatus, which is in communication connection with the conveying apparatus and the ray scanning apparatus, wherein the conveying apparatus, the ray scanning apparatus and the control apparatus use a unified communication protocol, and the conveying apparatus is configured to control the operation of the second conveying mechanism by means of the control apparatus. Further provided in the present disclosure are an object inspection method.

IPC Classes  ?

  • B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays

52.

BAGGAGE SORTING SYSTEM AND SORTING METHOD

      
Application Number CN2024136624
Publication Number 2025/119200
Status In Force
Filing Date 2024-12-04
Publication Date 2025-06-12
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Cui, Jin
  • Tan, Yang
  • Li, Taiwen
  • Li, Hongtao
  • Zhang, Aigang

Abstract

A baggage sorting system and sorting method, in which a detection device (I) is used for detecting a baggage state and conveying detected baggage to a baggage output area (A); when the baggage is normal baggage, a robot (1) is controlled to convey the baggage to a transfer area (C) to be transferred, and when the baggage is suspicious baggage, the robot (1) is controlled to move the suspicious baggage to a sealing inlet area (D), so that a sealing device (J) can seal the baggage.

IPC Classes  ?

  • B07C 3/02 - Apparatus characterised by the means used for distribution
  • B07C 3/10 - Apparatus characterised by the means used for detection of the destination

53.

PUSHING MECHANISM AND DETECTION SYSTEM

      
Application Number 18840372
Status Pending
Filing Date 2023-12-25
First Publication Date 2025-06-12
Owner
  • Tsinghua University (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Wang, Zinan
  • Xie, Lei

Abstract

A pushing mechanism and an inspection system are provided. The pushing mechanism includes a position-changing device (10), a driving device (20) and a guide device (30). The position-changing device includes a main plate (11) and a pushing element (12) movably disposed on a side of the main plate. The driving device is connected to the main plate and configured to drive the position-changing device to move. After the guide device is in contact with the pushing element, the pushing element may switch between a first state and a second state. A highest point of the pushing element in the first state is higher than a highest point of the pushing element in the second state.

IPC Classes  ?

  • B65G 47/82 - Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels

54.

TERAHERTZ SIGNAL-BASED IMAGE COLLECTION DEVICE, IMAGE GENERATION SYSTEM AND IMAGE GENERATION METHOD

      
Application Number 18975537
Status Pending
Filing Date 2024-12-10
First Publication Date 2025-06-12
Owner
  • Tsinghua University (China)
  • NUCTECH COMPANY LIMITED (China)
  • Shenmutek Company Limited (China)
Inventor
  • Zhao, Ziran
  • You, Yan
  • Jin, Yingkang
  • Geng, Xingjie
  • Feng, Huacheng

Abstract

A terahertz signal-based image collection device, an image generation system and an image generation method are disclosed. The image collection device includes: a swinging reflection plate configured to reflect terahertz wave signals emitted from a sampling region including a target to be inspected; a lens component configured to focus the terahertz wave signals reflected by the swinging reflection plate; and a radiometer array including n rows of radiometers mounted on a focal plane of the lens component, where the n rows of radiometers are configured to sample the terahertz wave signals emitted from the same height of the target to be inspected and reflected by the swinging reflection plate at intervals, where n≥2, so that the formed terahertz wave image has higher resolution and higher contrast.

IPC Classes  ?

  • G01V 8/22 - Detecting, e.g. by using light barriers using multiple transmitters or receivers using reflectors

55.

TERAHERTZ SIGNAL-BASED IMAGE COLLECTION METHOD AND IMAGE COLLECTION SYSTEM

      
Application Number 18975649
Status Pending
Filing Date 2024-12-10
First Publication Date 2025-06-12
Owner
  • Tsinghua University (China)
  • NUCTECH COMPANY LIMITED (China)
  • Shenmutek Company Limited (China)
Inventor
  • Zhao, Ziran
  • You, Yan
  • Jin, Yingkang
  • Zhang, Jinshan
  • Feng, Huacheng

Abstract

A terahertz signal-based image collection method and system. The image collection method includes: providing two terahertz devices respectively on two sides of an inspection region; adjusting a posture of a swinging reflection plate of each terahertz device to reflect terahertz wave signals emitted by a target to be inspected in the inspection region, and preventing the terahertz wave signals of the target to be inspected reflected by the swinging reflection plate of one of the two terahertz devices from being incident on the swinging reflection plate of the other one of the two terahertz devices; and generating terahertz images of different sides of the target to be inspected based on terahertz signals reflected from the swinging reflection plates of the two terahertz devices.

IPC Classes  ?

  • G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation

56.

METHOD FOR PREPARING OXYGEN EVOLUTION ELECTRODE, OXYGEN EVOLUTION ELECTRODE AND ELECTROLYTIC CELL

      
Application Number CN2024135630
Publication Number 2025/119096
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-12
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Lin, Jingwen
  • Zhao, Shuang

Abstract

The present disclosure relates to a method for preparing an oxygen evolution electrode, an oxygen evolution electrode and an electrolytic cell. The method (100) comprises: preparing a thin film on the surface of a conductive substrate by means of magnetron sputtering, wherein the thin film at least contains a catalyst substance serving as a catalyst in an oxygen evolution reaction and a soluble substance that can dissolve in an alkaline solution (102); and making the thin film come into contact with the alkaline solution, such that the soluble substance dissolves in the alkaline solution, so that a porous catalyst layer consisting of the catalyst substance is formed on the surface of the conductive substrate, and the conductive substrate and the porous catalyst layer form an oxygen evolution electrode (104). The method of the present disclosure can improve the catalytic activity and stability of an oxygen evolution electrode, and facilitates large-scale oxygen evolution electrode preparation, and can effectively reduce the production cost and the application cost.

IPC Classes  ?

  • C25B 11/031 - Porous electrodes
  • C25B 11/052 - Electrodes comprising one or more electrocatalytic coatings on a substrate
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 11/077 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the compound being a non-noble metal oxide
  • C25B 11/091 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of at least one catalytic element and at least one catalytic compoundElectrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of two or more catalytic elements or catalytic compounds
  • C25B 9/19 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms

57.

DATA PROCESSING METHOD FOR STATIC COMPUTED TOMOGRAPHY SCANNING AND DEVICE

      
Application Number 18970299
Status Pending
Filing Date 2024-12-05
First Publication Date 2025-06-05
Owner
  • Nuctech Company Limited (China)
  • Tsinghua University (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Yuanjing
  • Huang, Qingping
  • Feng, Bo
  • Zheng, Xianguo
  • Zhao, Zhenhua
  • Xing, Pengfei

Abstract

A data processing method for static computed tomography scanning and a device are provided. The data processing method for static CT scanning includes: performing, in response to receiving a beam synchronization pulse signal, a time synchronization on N angle pulse signals and a time synchronization on N belt pulse signals by using the beam synchronization pulse signal, to obtain N synchronization angle pulse signals and N synchronization belt pulse signals, respectively; generating N timestamps based on the N synchronization angle pulse signals and the N synchronization belt pulse signals, where the N timestamps correspond to N scanning imaging systems of a static CT scanning device, respectively, and each of the N timestamps includes angle data and belt data; and packaging beam data, detection data, the angle data, and the belt data corresponding to each of the N scanning imaging systems to obtain N data packets.

IPC Classes  ?

  • G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation

58.

METHOD AND APPARATUS FOR DETERMINING GOODS TARIFF CODE BASED ON DEEP LEARNING

      
Application Number CN2024135513
Publication Number 2025/113610
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-05
Owner
  • NUCTECH JIANGSU COMPANY LIMITED (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Shi, Shuguang
  • Li, Yingting
  • Li, Bowen
  • Sun, Yunda

Abstract

The present disclosure relates to a method and apparatus for determining a goods tariff code based on deep learning. The method comprises: acquiring declaration data of declared goods; on the basis of the declaration data, determining a sub-category, for tariff code classification, of the declared goods; and determining a predicted tariff code of the declared goods on the basis of the determined sub-category. In embodiments of the present disclosure, the method can further comprise comparing the predicted tariff code of the declared goods with a declared tariff code in the declaration data to determine whether the current declaration is abnormal. A deep learning model according to the embodiments of the present disclosure can automatically predict the tariff code of the declared goods and automatically complete tariff code abnormal declaration detection.

IPC Classes  ?

59.

AIR BLOWING PATH DETECTION APPARATUS AND MATERIAL SORTING SYSTEM

      
Application Number CN2024135532
Publication Number 2025/113612
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-05
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Sun, Shangmin
  • Zhou, Hejun
  • Zhang, Zhijun
  • Han, Wenxue
  • Shen, Guanghui
  • Yang, Xiaoyong
  • Bian, Zhenhua
  • Zhang, Junbin
  • Xu, Xiaoying
  • Liu, Lei

Abstract

Disclosed in the present application are an air blowing path detection apparatus and a material sorting system. The air blowing path detection apparatus is used for detecting the operation condition of an air blowing path, and comprises a pressure measurement module, a transmission assembly and a driving module, wherein the driving module is connected to the transmission assembly, and the transmission assembly is connected to the pressure measurement module; the driving module is used for driving the transmission assembly, such that the transmission assembly drives the pressure measurement module to move relative to a nozzle, thereby making the pressure measurement module align with the nozzle; and the pressure measurement module is used for collecting air pressure data at the nozzle after the pressure measurement module aligns with the nozzle, wherein the air pressure data is used for determining the operation condition of an air blowing path. An external pressure measurement module is used to detect the operation condition of an air blowing path in any operation state, without invasively detaching the air blowing path, thereby improving the efficiency of operation condition detection for the air blowing path, and thus improving the material sorting efficiency.

IPC Classes  ?

  • G01V 9/00 - Prospecting or detecting by methods not provided for in groups

60.

CT IMAGE RECONSTRUCTION METHOD, APPARATUS, AND SYSTEM, AND STORAGE MEDIUM

      
Application Number CN2024126061
Publication Number 2025/107950
Status In Force
Filing Date 2024-10-21
Publication Date 2025-05-30
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Li, Yuanjing
  • Zhang, Li
  • Zhang, Jian
  • Yi, Xi
  • Liu, Bicheng
  • Wang, Dongyu
  • Ni, Xiulin
  • Li, Liang
  • Sun, Shangmin
  • Zong, Chunguang

Abstract

The present disclosure provides a CT image reconstruction method, apparatus, and system, and a storage medium. The CT image reconstruction method comprises: acquiring coordinate values of N target points on a target object at a specified moment, N being a natural number greater than 1, and the target object being an object undergoing CT scanning in a CT scanning device; by using the coordinate values of the N target points at the specified moment and coordinate values of the center of rotation of the CT scanning device, determining a deflection angle of the target object; by using the deflection angle and the coordinate values of the center of rotation, correcting coordinate values of each point in a current scanning area of the target object, so as to obtain corrected coordinate values of each point; and, by using the corrected coordinate values of each point and projection data acquired at the specified moment, obtaining a reconstructed CT image.

IPC Classes  ?

61.

METHOD AND APPARATUS FOR AUTOMATICALLY IDENTIFYING HAZARDOUS CHEMICAL, AND COMPUTER READABLE MEDIUM

      
Application Number CN2024129138
Publication Number 2025/108042
Status In Force
Filing Date 2024-10-31
Publication Date 2025-05-30
Owner
  • NUCTECH JIANGSU COMPANY LIMITED (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Xu, Zhexi
  • Yang, Zhi
  • Li, Bowen
  • Li, Yingting
  • Sun, Yunda

Abstract

The present disclosure relates to a method and apparatus for automatically identifying a hazardous chemical, and a computer readable medium. The method for automatically identifying a hazardous chemical comprises: receiving data comprising chemical component information of an article; pre-processing the data; using a compound content relationship extraction model to extract from the pre-processed data a triple consisting of a compound field, a relationship field, and a content field, wherein the compound field indicates the name of a compound, the content field indicates a content proportion value of the compound, and the relationship field indicates the relationship between the compound and the content proportion value; and comparing the triple with a pre-constructed hazardous chemical dictionary to determine whether the corresponding compound is a hazardous compound.

IPC Classes  ?

  • G06F 18/10 - Pre-processingData cleansing
  • G06F 18/243 - Classification techniques relating to the number of classes
  • G06F 40/279 - Recognition of textual entities
  • G06F 40/30 - Semantic analysis
  • G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
  • G06Q 10/0831 - Overseas transactions
  • G06Q 10/0832 - Special goods or special handling procedures, e.g. handling of hazardous or fragile goods

62.

CT SCANNING IMAGING SYSTEM AND METHOD BASED ON SINGLE LINEAR SCANNING CHANNEL

      
Application Number CN2024123913
Publication Number 2025/098079
Status In Force
Filing Date 2024-10-10
Publication Date 2025-05-15
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Liang, Jinning
  • Shen, Le
  • Zhao, Tiao
  • Huang, Qingping
  • Sun, Yunda
  • Liu, Junhao

Abstract

The present disclosure provides a CT scanning imaging system based on a single linear scanning channel. The system comprises: a conveying apparatus, used for moving a subject to be scanned along a predetermined conveying direction in the single linear scanning channel; a plurality of scanning sections, each scanning section comprising a plurality of ray sources and at least one detector, the plurality of scanning sections being arranged at intervals in the conveying direction, wherein in each scanning section, the plurality of ray sources are used for alternately emitting ray beams so as to form a scanning region, the plurality of ray sources are located on one side of the scanning channel and sequentially arranged at intervals, and the at least one detector is located on the other side of the scanning channel and used for detecting projection data formed by the ray beams after passing through the subject to be scanned while the subject to be scanned traverses the scanning region; and an imaging apparatus, which, on the basis of the projection data detected by the detectors in the plurality of scanning sections, generates a three-dimensional reconstructed image of the subject to be scanned.

IPC Classes  ?

  • G01V 5/226 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography
  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays

63.

CT SCANNING SYSTEM AND METHOD

      
Application Number CN2024124714
Publication Number 2025/098094
Status In Force
Filing Date 2024-10-14
Publication Date 2025-05-15
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Shen, Le
  • Sun, Yunda
  • Huang, Qingping

Abstract

A computed tomography (CT) scanning system, comprising: a conveying apparatus (3), which moves a scanned object (30) in a scanning channel (31) in a conveying direction; a distributed ray source (1), which comprises m targets (10), wherein the m targets (10) are activated according to a predetermined order so as to emit ray beams, with m being a positive integer greater than or equal to two, a ray beam emitted from at least one target (10) from among the m targets (10) is modulated into a first ray beam having a first energy, and a ray beam emitted from at least another target (10) from among the m targets (10) is modulated into a second ray beam having a second energy, the first energy being lower than the second energy; a detector array (2), which is used for detecting that the first ray beam passes through the scanned object (30), so as to generate first projection data, and detecting that the second ray beam passes through the scanned object (30), so as to generate second projection data; and an image reconstruction apparatus (4), which generates a CT scanned image of the scanned object (30) on the basis of the first projection data and the second projection data, wherein the distributed ray source (1) is configured to rotate around a first axis when the scanned object (30) is being scanned, the first axis being parallel to the conveying direction.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • A61B 6/03 - Computed tomography [CT]
  • A61B 6/02 - Arrangements for diagnosis sequentially in different planesStereoscopic radiation diagnosis

64.

CT SCANNING SYSTEM AND METHOD

      
Application Number CN2024124715
Publication Number 2025/098095
Status In Force
Filing Date 2024-10-14
Publication Date 2025-05-15
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Shen, Le
  • Sun, Yunda
  • Huang, Qingping
  • Yang, Hongkai

Abstract

The present disclosure provides a computed tomography (CT) scanning system, comprising: a conveying device, used for moving an object to be scanned in a scanning tunnel in a preset conveying direction; a distributed ray source, wherein the distributed ray source comprises m targets, the m targets are configured to be activated according to a predetermined sequence to emit ray beams, and m is a positive integer greater than or equal to 2; a detector array, used for detecting rays emitted from the distributed ray source and passing through said object, and generating projection data on the basis of the detected rays; and an image reconstruction device, configured to generate a CT scanning image of said object on the basis of the projection data, wherein the distributed ray source is configured to rotate around a first axis when said object is scanned, the first axis being parallel to the conveying direction; and in the distributed ray source, at least two targets among the m targets are offset in a tangential direction, the tangential direction being a direction extending along a tangent line tangent to the rotation direction of the distributed ray source.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

65.

CT SCANNING SYSTEM

      
Application Number CN2024126810
Publication Number 2025/098141
Status In Force
Filing Date 2024-10-23
Publication Date 2025-05-15
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Shen, Le
  • Yang, Hongkai
  • Sun, Yunda
  • Huang, Qingping

Abstract

A CT scanning system, comprising: a conveying device (3), used for allowing a scanning object (30) to move in a preset conveying direction in a scanning channel (31); p scanning segments, each scanning segment comprising a distributed ray source (1) and a detector array (2), the p scanning segments being spaced apart in the conveying direction, p being a positive integer greater than or equal to 2, in each scanning segment, the distributed ray source (1) comprising m targets, the m targets being configured to be activated in a predetermined order so as to emit ray beams, m being a positive integer greater than or equal to 2, and the detector arrays (2) being used for detecting rays emitted from the distributed ray sources (1) and passing through the scanning object (30), and generating projection data on the basis of the detected rays; and an image reconstruction device (4) for generating a computed tomography image of the scanning object (30) on the basis of the projection data detected by each detector array (2) in the p scanning segments. The distributed ray source (1) of at least one scanning segment is configured to rotate about a first axis parallel to the conveying direction when the scanning object (30) is scanned.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • A61B 6/03 - Computed tomography [CT]

66.

LINEAR SCANNING CT IMAGING SYSTEM AND METHOD

      
Application Number CN2024126811
Publication Number 2025/098142
Status In Force
Filing Date 2024-10-23
Publication Date 2025-05-15
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Shen, Le
  • Zhao, Tiao
  • Sun, Yunda
  • Huang, Qingping
  • Liang, Wuyang
  • Liu, Junhao

Abstract

A linear scanning computed tomography (CT) imaging system, comprising: a conveying apparatus (3), used for enabling an object (30) under scan to move in a preset conveying direction (D3) in a scanning channel (4); ray sources (1), used for alternately emitting ray beams to form a scanning area; detectors (2), including first detectors (21) and a second detector (22), wherein the first detectors (21) are used for detecting first projection data formed by the ray beams passing through said object (30) in the process of said object (30) passing through the scanning area, and the second detector (22) is used for detecting second projection data formed by the ray beams passing through said object (30) in the process of said object (30) passing through the scanning area; and an imaging apparatus (5), used for generating a digital ray image of said object (30) on the basis of the second projection data, and obtaining a CT scanning image of said object (30) on the basis of the first projection data and the second projection data. Also provided is a linear scanning CT imaging method.

IPC Classes  ?

  • G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity

67.

RAY PROTECTION DEVICE AND RADIATION INSPECTION SYSTEM

      
Application Number 18690261
Status Pending
Filing Date 2022-08-16
First Publication Date 2025-05-01
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Huang, Wei
  • Shi, Junping
  • Wang, Feng

Abstract

The present disclosure provides a ray protection device and a radiation inspection system. The ray protection device comprises: a mobile bearing device, including a vehicle frame and a traveling device supporting the vehicle frame to drive the vehicle frame to travel in a first direction; and a protection wall, arranged on the vehicle frame and including a movable wall which is movable relative to the vehicle frame. The movable wall has a shielding position and a retracting position; at the shielding position of the movable wall, the protection wall has first projection area in a vertical plane parallel to the first direction; and at the retracting position of the movable wall, the protection wall has second projection area in the vertical plane, where the first projection area is larger than the second projection area.

IPC Classes  ?

  • G21F 5/14 - Devices for handling containers or shipping-casks, e.g. transporting devices
  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
  • G01V 5/222 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays measuring scattered radiation
  • G21F 5/04 - Means for controlling exposure, e.g. time, size of aperture

68.

SANDWICH STRUCTURE TEST METHOD AND DEVICE

      
Application Number CN2024121466
Publication Number 2025/082178
Status In Force
Filing Date 2024-09-26
Publication Date 2025-04-24
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chang, Ming
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Liu, Zhe

Abstract

The present disclosure provides a sandwich structure test method and device. The test method comprises: acquiring a detection angle of a sandwich structure of an object under test; and testing the sandwich structure on the basis of the detection angle of the sandwich structure.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

69.

TEMPLATE LIBRARY CONSTRUCTION AND RETRIEVAL METHOD AND APPARATUS

      
Application Number CN2024124021
Publication Number 2025/082246
Status In Force
Filing Date 2024-10-10
Publication Date 2025-04-24
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Sun, Yunda
  • Fu, Gang
  • Li, Qiang
  • Shi, Jie

Abstract

The present application relates to a template library construction and retrieval method and apparatus. The method comprises: a template library construction step, involving: for template images, on the basis of a variational autoencoder, acquiring hidden vectors corresponding to the template images, and storing the hidden vectors to construct a template library; and a template library retrieval step, involving: for a test image, on the basis of a variational autoencoder, acquiring a hidden vector corresponding to the test image, and using the hidden vector to perform retrieval in the template library, so as to obtain template data. In the present application, by means of such a template library construction and retrieval method and apparatus, the template library construction and retrieval efficiency can be improved.

IPC Classes  ?

70.

SAFETY PROTECTION METHOD AND APPARATUS AND ELECTRONIC FENCE

      
Application Number CN2024121605
Publication Number 2025/077594
Status In Force
Filing Date 2024-09-27
Publication Date 2025-04-17
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Meng, Defang
  • Wang, Yongming
  • Guo, Yanfeng
  • Guo, Yiwei
  • Ni, Xiulin
  • Xu, Yanwei

Abstract

A safety protection method and apparatus and an electronic fence, relating to the technical field of electronic fences. The safety protection method comprises: receiving first shading detection information (S110), wherein the first shading detection information is sent out when a first light beam between a first monitoring terminal (201) and a second monitoring terminal (202) in a first group of monitoring terminals is blocked by an object; receiving second shading detection information (S120), wherein the second shading detection information is sent out when a second light beam between a third monitoring terminal (203) and a fourth monitoring terminal (204) in a second group of monitoring terminals is blocked by the object; determining the category of the object on the basis of the first shading detection information and the second shading detection information (S130); and outputting indication information carrying the category of the object (S140).

IPC Classes  ?

  • G08B 13/183 - Actuation by interference with heat, light, or radiation of shorter wavelengthActuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
  • G08B 21/12 - Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
  • G08B 19/00 - Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
  • G08B 3/10 - Audible signalling systemsAudible personal calling systems using electric transmissionAudible signalling systemsAudible personal calling systems using electromagnetic transmission

71.

RAY INSPECTION SYSTEM

      
Application Number CN2024121804
Publication Number 2025/077601
Status In Force
Filing Date 2024-09-27
Publication Date 2025-04-17
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Wang, Zinan
  • Xie, Lei
  • Ye, Shuai
  • Chang, Ming

Abstract

A ray inspection system (100) adapted to inspect an elongated article (200). The ray inspection system comprises: a ray inspection device (1) comprising a scanning device (11) adapted to perform X-ray scanning inspection on the elongated article (200); a conveying track (2) comprising an input track (21) located on the upstream side of the scanning device (11) and an output track (22) located on the downstream side of the scanning device; and a carrying mechanism (3), the carrying mechanism (3) having two ends movably mounted on the conveying track (2) and being configured to convey the elongated article (200) from the input track (21) to the output track (22) through the scanning device (11), so as to perform X-ray scanning inspection on the elongated article (200).

IPC Classes  ?

  • G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity

72.

INSPECTION SYSTEM AND INSPECTION METHOD

      
Application Number 18834382
Status Pending
Filing Date 2023-12-25
First Publication Date 2025-04-03
Owner
  • NUCTECH COMPANY LIMITED (China)
  • Tsinghua University (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Wang, Zinan
  • Xie, Lei
  • Chang, Ming

Abstract

An inspection system includes a conveying mechanism, a pushing mechanism, a positioning mechanism and an inspection mechanism. The conveying mechanism is configured to convey an object to be inspected. The pushing mechanism is suitable for pushing the object to be inspected in a conveying direction of the conveying mechanism, so as to push the object to be inspected to a first positioning plane and a second positioning plane. The positioning mechanism includes a positioning portion. The positioning portion may move in the conveying direction of the conveying mechanism, so as to define the first positioning plane and the second positioning plane. The object to be inspected abuts against the positioning portion on the first positioning plane and the second positioning plane. The inspection mechanism is suitable for inspecting the object to be inspected when the object to be inspected is located on the first positioning plane and the second positioning plane.

IPC Classes  ?

  • B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
  • B65G 47/28 - Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a single conveyor
  • B65G 47/82 - Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels

73.

CT IMAGING SYSTEM AND CT DETECTION DEVICE

      
Application Number 18832490
Status Pending
Filing Date 2023-12-25
First Publication Date 2025-03-27
Owner
  • Tsinghua University (China)
  • Nuctech Company Limited (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Wang, Zinan
  • Xia, Yongjie
  • Chang, Ming

Abstract

The present disclosure provides a CT imaging system and a CT detection device. The CT imaging system includes: a connecting plate, a strong supporting frame, a weak supporting frame, an emitter, a detector, an electrical component and a shielding box. The connecting plate is annular and has a rotating axis. The strong supporting frame is connected to the connecting plate on a side of the connecting plate and includes a first strong supporting frame and a second strong supporting frame distributed at an interval in a circumferential direction of the connecting plate. The weak supporting frame is connected to the connecting plate on a same side of the connecting plate as the strong supporting frame. The emitter is connected to the first strong supporting frame. The detector is connected to the second strong supporting frame. The electrical component is connected to the weak supporting frame. The shielding box is connected to at least one weak supporting frame.

IPC Classes  ?

  • A61B 6/03 - Computed tomography [CT]
  • A61B 6/10 - Safety means specially adapted therefor

74.

IMAGING METHOD FOR STATIC CT APPARATUS, STATIC CT APPARATUS, ELECTRONIC DEVICE, AND MEDIUM

      
Application Number 18570387
Status Pending
Filing Date 2023-08-31
First Publication Date 2025-03-20
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Tang, Hu
  • Sun, Yunda
  • Jin, Xin
  • Zhao, Zhenhua
  • Shen, Le

Abstract

A static CT apparatus and an imaging method for the same are provided. The imaging method includes: acquiring initial projection data of an inspected object at different angles by using a distributed ray source and a detector, where the initial projection data includes projection data that is directly obtained by the detector based on the rays emitted from a plurality of ray source points; obtaining a first CT image using a reconstruction algorithm according to the acquired initial projection data; dividing the first CT image into N first sub-images, where N is a positive integer greater than or equal to 1, and a union of the N first sub-images covers the entire first CT image; optimizing the N first sub-images to obtain N second sub-images; and merging the N second sub-images to obtain a second CT image.

IPC Classes  ?

  • G06T 11/00 - 2D [Two Dimensional] image generation
  • A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
  • G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
  • G06T 7/11 - Region-based segmentation

75.

MEAT GRADING METHOD AND SYSTEM

      
Application Number CN2024118828
Publication Number 2025/056033
Status In Force
Filing Date 2024-09-13
Publication Date 2025-03-20
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqing
  • Zhang, Li
  • Sun, Yunda
  • Li, Xinbin
  • Shen, Le
  • Zhao, Zhenhua

Abstract

The present application provides a meat grading method and system. The method comprises: acquiring multi-dimensional meat imaging information of meat; performing high-precision measurement on the meat to obtain grading truth value data of the meat; and computing a grading index parameter computation value on the basis of the multi-dimensional meat imaging information, and training a grading index parameter model on the basis of the grading index parameter computation value and the grading truth value data to obtain a trained grading index parameter model.

IPC Classes  ?

  • G06F 18/24 - Classification techniques
  • G06V 10/30 - Noise filtering
  • G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
  • G06N 20/00 - Machine learning

76.

CONVEYOR DEVICE, FAN BLADE SCANNING SYSTEM AND FAN BLADE SCANNING METHOD

      
Application Number CN2024078299
Publication Number 2025/039493
Status In Force
Filing Date 2024-02-23
Publication Date 2025-02-27
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Zong, Chunguang
  • Wang, Qiangqiang
  • Shi, Junping
  • Fan, Xuping
  • Song, Quanwei
  • Meng, Hui
  • Li, Hongqi

Abstract

A conveyor device, a fan blade scanning system and a fan blade scanning method. The conveyor device (100) comprises a driving conveying apparatus (1) and a driven conveying apparatus (2); the driving conveying apparatus comprises a main driving member and a main body member (11); the main body member comprises a carrier component (111) and a micro-motion component (112); the carrier component is connected to the main driving member, so that the main driving member drives the carrier component to move at a first set speed; the micro-motion component is movably arranged on the carrier component; and a first end of a fan blade (200) is suitable for being fixedly installed on the micro-motion component, and a second end of the fan blade is suitable for being fixedly installed on the driven conveying apparatus. When the carrier component stops moving, the micro-motion component drives the fan blade and the driven conveying apparatus to perform micro-motion at a second set speed. The conveyor device enables fan blades of different specifications to smoothly pass through a scanning area of a scanning device. The conveyor device has a simple structure, is flexible and convenient in use, and requires low manufacturing cost and low maintenance cost.

IPC Classes  ?

  • B65G 35/00 - Mechanical conveyors not otherwise provided for
  • B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged

77.

DEVICE AND METHOD FOR MAINTAINING EQUIPMENT

      
Application Number 18725700
Status Pending
Filing Date 2022-09-29
First Publication Date 2025-02-27
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Huang, Qingping
  • Zhou, Yong
  • Ding, Hui
  • Hu, Baoyuan
  • Wei, Bintao

Abstract

Provided is a device for maintaining an equipment configured to maintain a to-be-maintained equipment (1). The to-be-maintained equipment (1) includes a first side and a second side opposite to the first side, and the device includes: at least one guide rail (3) extending in a first direction, wherein the first direction is a direction pointing from the first side to the second side; a sliding mechanism (4) arranged on the guide rail (3) and configured to support the to-be-maintained equipment (1); and a driving mechanism (5) configured to drive the sliding mechanism (4) and the to-be-maintained equipment (1) to move along the guide rail (3), wherein the device is configured to allow the to-be-maintained equipment (1) to move along the guide rail (3) to change a maintenance space on the first side or the second side.

IPC Classes  ?

  • F16M 11/18 - Heads with mechanism for moving the apparatus relatively to the stand
  • B23P 6/00 - Restoring or reconditioning objects
  • F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
  • F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
  • F16M 11/04 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand

78.

CONTROL METHOD AND APPARATUS, ELECTRONIC DEVICE, STORAGE MEDIUM, AND CONVEYING SYSTEM

      
Application Number CN2024078107
Publication Number 2025/039490
Status In Force
Filing Date 2024-02-22
Publication Date 2025-02-27
Owner
  • TSINGHUA UNIVERSITY (China)
  • NUCTECH COMPANY LIMITED (China)
  • NUCTECH JIANGSU COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Yuanjing
  • Huang, Qingping
  • Zhou, Jiajia
  • Zhou, Yong
  • Liu, Junhao
  • Zhan, Xiaolei
  • Wu, Gaofeng

Abstract

A control method and apparatus for a conveying system, an electronic device, a readable storage medium, and a conveying system. The control method comprises: in response to goods entering a security inspection system, generating simulated goods on a simulation system, pre-created on a human-computer interface, of a conveying system and encoding the simulated goods, wherein the simulation system comprises a plurality of simulated conveying devices corresponding to a plurality of conveying devices; on the basis of positioning information of the conveying system on the goods, updating position information on the simulation system of the simulated goods corresponding to the goods, wherein the position information comprises a simulated conveying device where the simulated goods are located; and when the conveying of the goods in the conveying system is stopped, on the basis of the position information of the simulated goods corresponding to the goods, controlling a conveying device corresponding to the simulated conveying device in the position information to act so as to complete the conveying of the goods in the conveying system.

IPC Classes  ?

  • B65G 43/00 - Control devices, e.g. for safety, warning or fault-correcting
  • G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
  • B65G 37/00 - Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
  • B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged

79.

SECURITY INSPECTION MACHINE OPERATION METHOD, SYSTEM AND APPARATUS, DEVICE, MEDIUM, AND PROGRAM PRODUCT

      
Application Number CN2024078305
Publication Number 2025/035728
Status In Force
Filing Date 2024-02-23
Publication Date 2025-02-20
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Huang, Qingping
  • Zhang, Jiaming
  • Chen, Jiabao
  • Li, Lihua

Abstract

Provided is a security inspection machine operation method for a recognition end, relating to the field of security inspection. The method comprises: carrying out suspicious object recognition on video data from a target security inspection end; and once a suspicious object is recognized, sending a keyboard and mouse message to the target security inspection end on the basis of a preset operation instruction, wherein the target security inspection end is configured to execute the preset operation instruction in response to the keyboard and mouse message. Further provided are a security inspection machine operation system and apparatus, a device, a storage medium, and a program product.

IPC Classes  ?

  • G06F 3/04883 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text

80.

TESTING DEVICE AND TESTING METHOD FOR OBJECT TESTING

      
Application Number CN2024079876
Publication Number 2025/035745
Status In Force
Filing Date 2024-03-04
Publication Date 2025-02-20
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Li, Liang
  • Hong, Mingzhi
  • Chang, Ming
  • Wang, Zinan

Abstract

Provided are a testing device and testing method for object testing. The testing device comprises: a testing mechanism, a position sensing assembly, and a conveying mechanism. The testing mechanism comprises: a ray emitter, and at least two ray receivers arranged spaced apart in an object conveying direction; a testing area is provided between the ray emitter and each ray receiver; the testing mechanism is used for testing an object when the object is located in the testing area; the position sensing assembly is used for testing whether the object is located in the testing area; and the conveying mechanism is arranged between the ray emitter and the ray receivers and conveys the object, and the conveying mechanism is used for conveying the object at a first transmission speed when the testing mechanism does not test the object and for conveying the object at a second transmission speed when the testing mechanism tests the object, wherein the first transmission speed is greater than the second transmission speed.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged

81.

RADIATION SCANNING IMAGING SYSTEM

      
Application Number CN2024078775
Publication Number 2025/030804
Status In Force
Filing Date 2024-02-27
Publication Date 2025-02-13
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Meng, Hui
  • Song, Quanwei
  • Fan, Xuping
  • Shi, Junping

Abstract

The present disclosure relates to a radiation scanning imaging system, comprising: a cabin body having at least one opening and defining a detection channel used for performing scanning imaging on an object to be scanned, the detection channel extending from the at least one opening into the cabin body; a scanning device provided in the cabin body and used for performing scanning imaging on said object; and a conveying device arranged at the bottom of the cabin body and used for driving said object to advance in the extension direction of the detection channel and pass through the scanning device. The conveying device comprises: a bottom wall for defining the bottom of the cabin body; and at least one door body located at the at least one opening of the cabin body and connected to the bottom wall. Said object enters or leaves the detection channel from the at least one door body, wherein the at least one door body can translate relative to the bottom wall so as to be stored in the cabin body or be unfolded outward from the cabin body.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
  • G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity

82.

INSPECTION SYSTEM AND INSPECTION METHOD

      
Application Number 18576857
Status Pending
Filing Date 2022-07-06
First Publication Date 2025-02-06
Owner
  • NUCTECH COMPANY LIMITED (China)
  • Tsinghua University (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Huang, Qingping
  • Ding, Hui
  • Zhou, Yong
  • Jin, Xin
  • Yao, Liming

Abstract

An inspection system and method, the inspection system includes: a carrying device, at least one ray source and a detector assembly. The ray source and the detector assembly are lifted or lowered along a central axis of the carrying device relative to the carrying device. When viewed along the central axis, the ray source is translatable between scanning positions relative to the carrying device. When the ray source is at one of the scanning positions the ray source and the detector assembly are lifted or lowered relative to the carrying device along the central axis, and the ray source emits X-rays; and when the ray source and the detector assembly are lifted or lowered a predetermined distance the ray source translates to another scanning position. The inspection system further reconstructs a three-dimensional scanning image of the object to be inspected based on detection data of the detector assembly.

IPC Classes  ?

  • G06T 17/00 - 3D modelling for computer graphics
  • G01V 5/226 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography

83.

HEAT DISSIPATION STRUCTURE AND INSPECTION APPARATUS

      
Application Number 18718509
Status Pending
Filing Date 2022-12-23
First Publication Date 2025-02-06
Owner Nuctech Company Limited (China)
Inventor
  • Huang, Qingping
  • Hong, Mingzhi
  • Wang, Zinan
  • Zhang, Liguo
  • Hou, Hongbin

Abstract

A heat dissipation structure and an inspection apparatus are provided. The heat dissipation structure includes: a supporting frame (50) configured to rotate around a central axis (O) thereof; a heat source (40) arranged on the supporting frame (50); and a radiator (30) configured to receive a fluid heated by the heat source (40) from the heat source (40) and input the cooled fluid to the heat source (40). The radiator (30) is arranged on a periphery of the supporting frame (50) relative to the central axis (O). When the supporting frame (50) rotates around the central axis (O), the radiator (30) allows air to enter into the radiator via an air inlet opening (30-I) thereof and to be expelled from the radiator via an air outlet opening (30-O) thereof.

IPC Classes  ?

  • A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
  • F28D 1/03 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
  • F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
  • H05G 1/02 - Constructional details

84.

CALIBRATION ASSEMBLY, CALIBRATION PHANTOM AND CALIBRATION METHOD

      
Application Number 18722485
Status Pending
Filing Date 2022-10-24
First Publication Date 2025-02-06
Owner
  • NUCTECH COMPANY LIMITED (China)
  • Tsinghua University (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Sun, Yunda
  • Li, Xinbin
  • Zhao, Zhenhua
  • Zhao, Tiao
  • Jin, Xin

Abstract

A calibration assembly, including: a base; and a plurality of calibration wires dispersedly connected to the base. An absorption capacity of the calibration wire for X rays is greater than that of the base for X rays. Through a specific structure design of a plurality of calibration wires in the calibration assembly, the calibration wires are dispersedly connected to the base, and taking advantage of the characteristics that the absorption capacity of the calibration wire for X rays is greater than that of the base for X rays, the calibration wires are applied to the calibration phantom, and the calibration phantom is scanned in the scanning system. By continuously adjusting the geometric parameter values in the imaging method, the optimal geometric parameter values that are closest to the real scanning system structure may be obtained, thereby improving the imaging effect of the scanning system.

IPC Classes  ?

  • G06T 11/00 - 2D [Two Dimensional] image generation
  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

85.

SECURITY INSPECTION DEVICE, SECURITY INSPECTION SYSTEM, AND SECURITY INSPECTION METHOD

      
Application Number 18715229
Status Pending
Filing Date 2022-12-26
First Publication Date 2025-01-30
Owner
  • NUCTECH (BEIJING) COMPANY LIMITED (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Li, Yuanjing
  • Sun, Shangmin
  • Zong, Chunguang
  • Song, Tao
  • Liu, Lei
  • Ma, Yuan
  • Yu, Weifeng
  • Liu, Bicheng

Abstract

A security inspection device, a security inspection system and a security inspection method are provided, the device includes: a support frame defining an inspection channel; a first X-ray accelerator provided at a position of a top portion of the support frame and the position is offset from a centerline of the inspection channel, where the first X-ray accelerator is configured to radiate a first X-ray towards the inspection channel to inspect an object; a second X-ray accelerator configured to radiate a second X-ray to the inspection channel to inspect the object; and a detector apparatus, including: detector modules provided on the support frame and facing the first X-ray accelerator and the second X-ray accelerator, the detector modules receive the first X-ray and/or the second X-ray to form a transmission image of the object; the first X-ray, the second X-ray, and the detector modules are located in the same plane.

IPC Classes  ?

  • G01N 23/10 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in luggage X-ray scanners
  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
  • G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
  • G01P 3/64 - Devices characterised by the determination of the time taken to traverse a fixed distance

86.

RADIATION INSPECTION SYSTEM

      
Application Number 18716144
Status Pending
Filing Date 2022-12-28
First Publication Date 2025-01-30
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Wang, Qiangqiang
  • Shi, Junping
  • He, Yuan
  • Li, Hongqi
  • Meng, Hui

Abstract

A radiation inspection system including: a radiation imaging device, which includes at least one radiation source and at least one detector module, has a CT inspection mode and a DR inspection mode, and is configured to perform radiation inspection on an object to be inspected passing through an inspection channel; a conveying device, which includes a conveying device main body, and a primary-secondary motor in drive connection with the conveying device main body, including a main motor, a sub-motor, and a speed reducer; and a controller in signal connection with the radiation imaging device and the primary-secondary motor, configured such that when the radiation imaging device is in the CT inspection mode, the conveying device main body is in drive connection with the sub-motor, and in the DR inspection mode, the conveying device main body is in drive connection with the main motor.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01N 23/06 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption

87.

INSPECTION DEVICE AND INSPECTION METHOD FOR BATTERY CELL INSPECTION

      
Application Number CN2024077590
Publication Number 2024/255293
Status In Force
Filing Date 2024-02-19
Publication Date 2024-12-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Li, Liang
  • Hong, Mingzhi
  • Chang, Ming
  • Wang, Zinan

Abstract

An inspection device (100) and an inspection method for a battery cell (200). The inspection device (100) comprises: a support mechanism (10), a rotation mechanism (20), a conveying mechanism (30), and an inspection mechanism (23). The rotation mechanism (20) is arranged on the support mechanism (10), and comprises a rotation support (21) and a rotary disc (22), wherein the rotation support (21) is arranged on the support mechanism (10), and the rotary disc (22) can circumferentially rotate relative to the rotation support (21). The conveying mechanism (30) runs through the rotary disc (22), and is suitable for conveying a battery cell (200). The inspection mechanism (23) is arranged on the rotary disc (22), and comprises a ray source (231) and a detector (232), wherein the ray source (231) and the detector (232) are suitable for inspecting the battery cell (200) on the conveying mechanism (30), and the ray source (231) and the detector (232) are suitable for circumferentially rotating on the rotary disc (22).

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01N 23/18 - Investigating the presence of defects or foreign matter
  • G01B 15/00 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons

88.

INSPECTION DEVICE AND INSPECTION METHOD FOR BATTERY CELL INSPECTION

      
Application Number CN2024078531
Publication Number 2024/255309
Status In Force
Filing Date 2024-02-26
Publication Date 2024-12-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Li, Yuanjing
  • Chen, Zhiqiang
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Chang, Ming
  • Wang, Zinan

Abstract

Provided are an inspection device and an inspection method for battery cell inspection. The inspection device comprises a supporting mechanism, a rotating mechanism, a conveying mechanism and an inspection mechanism. The rotating mechanism is arranged on the supporting mechanism and comprises a rotating support and a rotating disc, wherein the rotating support is arranged on the supporting mechanism, and the rotating disc can circumferentially rotate relative to the rotating support; the conveying mechanism comprises two reciprocating conveyor belts arranged on two sides of the rotating disc, respectively, and the reciprocating conveyor belts are suitable for carrying battery cells to enter or leave an inspection zone; and the inspection mechanism is arranged on the rotating disc and comprises a ray source and a detector, wherein the ray source and the detector are suitable for inspecting the battery cells on the conveying mechanism, and the ray source and the detector are suitable for circumferentially rotating on the rotating disc.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

89.

TESTING DEVICE, AND TESTING METHOD FOR BATTERY CELL TESTING

      
Application Number CN2024078557
Publication Number 2024/255312
Status In Force
Filing Date 2024-02-26
Publication Date 2024-12-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Li, Liang
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Zhang, Li
  • Hong, Mingzhi
  • Chang, Ming
  • Wang, Zinan

Abstract

A testing device (100), and a testing method for a battery cell (200). The testing device (100) comprises: a supporting mechanism (10), a rotating mechanism (20), a conveying mechanism (30), a moving mechanism (40) and a testing mechanism (23). The rotating mechanism (20) is arranged on the supporting mechanism (10), and the rotating mechanism (20) comprises a rotating support (21) and a rotating disk (22), wherein the rotating support (21) is arranged on the supporting mechanism (10), and the rotating disk (22) can circumferentially rotate relative to the rotating support (21); the conveying mechanism (30) is adapted to convey the battery cell (200) to a testing area, and the conveying mechanism (30) is arranged extending perpendicular to the axis of rotation of the testing mechanism (23); the moving mechanism (40) is arranged between the supporting mechanism (10) and the rotating mechanism (20), and the rotating mechanism (20) can move relative to the supporting mechanism (10) under the support of the moving mechanism (40); and the testing mechanism (23) is arranged on the rotating disk (22), and the testing mechanism (23) comprises a ray source (231) and a detector (232), wherein the ray source (231) and the detector (232) are adapted to test the battery cell (200) on the conveying mechanism (30), and the ray source (231) and the detector (232) are adapted to circumferentially rotate on the rotating disk (22).

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01N 23/18 - Investigating the presence of defects or foreign matter
  • G01B 15/00 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons

90.

TESTING DEVICE, AND TESTING METHOD FOR BATTERY CELL TESTING

      
Application Number CN2024078558
Publication Number 2024/255313
Status In Force
Filing Date 2024-02-26
Publication Date 2024-12-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Chang, Ming
  • Wang, Zinan

Abstract

A testing device, and a testing method for battery cell testing. The testing device comprises: a supporting mechanism (10), a rotating mechanism (20), a conveying mechanism (30) and a testing mechanism (40). The rotating mechanism (20) is arranged on the supporting mechanism (10); the conveying mechanism (30) is adapted to convey a battery cell (200); and the testing mechanism (23) is arranged on the rotating mechanism (20), and the testing mechanism (23) comprises a ray source (231) and a detector (232), wherein the ray source (231) and the detector (232) are adapted to test the battery cell (200) on the conveying mechanism (30), and the ray source (231) and the detector (232) are adapted to circumferentially rotate on the rotating mechanism (20).

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

91.

DETECTION APPARATUS AND DETECTION METHOD FOR BATTERY CELL DETECTION

      
Application Number CN2024079603
Publication Number 2024/255327
Status In Force
Filing Date 2024-03-01
Publication Date 2024-12-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Chang, Ming
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Zhang, Li
  • Li, Liang
  • Hong, Mingzhi
  • Wang, Zinan

Abstract

Provided are a detection apparatus and a detection method for battery cell detection. The detection apparatus comprises: a supporting mechanism, a rotating mechanism, a conveying mechanism, and a detection mechanism. The rotating mechanism is arranged on the supporting mechanism, the rotating mechanism comprises a rotating support and a rotating disc, the rotating support is arranged on the supporting mechanism, and the rotating disc is capable of rotating circumferentially relative to the rotating support; the conveying mechanism penetrates through the rotating disc, and the conveying mechanism is adapted to convey a battery cell; the detection mechanism is arranged on the rotating disc, the detection mechanism comprises a ray source and a detector, the ray source and the detector are adapted to detect the battery cell on the conveying mechanism, and the ray source and the detector are adapted to rotate circumferentially on the rotating disc.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01N 23/18 - Investigating the presence of defects or foreign matter
  • G01B 15/00 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons

92.

RADIATION SHIELDING DEVICE, RADIATION SHIELDING METHOD AND SAFETY INSPECTION APPARATUS

      
Application Number CN2024078106
Publication Number 2024/255307
Status In Force
Filing Date 2024-02-22
Publication Date 2024-12-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Huang, Qingping
  • Feng, Bo
  • He, Zhifeng
  • Zhang, Liguo

Abstract

A radiation shielding device (30), comprising a fixed shielding member (31) and a movable shielding assembly (32). The fixed shielding member (31) is suitable for being fixedly mounted and comprises a first movement space configured to allow a beam output component (11) of a radiation device (10) to be able to move within the first movement space to transmit rays to a tested object (70) after the beam output component reaches a target position. The movable shielding assembly (32) is suitable for being connected to the beam output component (11) and is configured to move relative to the fixed shielding member (31) as the beam output component (11) moves, wherein at any target position, the movable shielding assembly (32) and the fixed shielding member (31) match each other to form N shielding layers surrounding the beam output component (11), N being an integer greater than or equal to 1; and the N shielding layers are configured to shield radiation of the rays to the outside of the beam output direction of the beam output component (11).

IPC Classes  ?

  • G21F 5/02 - Transportable or portable shielded containers with provision for restricted exposure of a radiation source within the container
  • G21F 3/00 - Shielding characterised by its physical form, e.g. granules, or shape of the material
  • A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

93.

INSPECTION DEVICE AND INSPECTION METHOD FOR BATTERY CELL INSPECTION

      
Application Number CN2024078556
Publication Number 2024/255311
Status In Force
Filing Date 2024-02-26
Publication Date 2024-12-19
Owner
  • NUCTECH COMPANY LIMITED (China)
  • TSINGHUA UNIVERSITY (China)
Inventor
  • Hong, Mingzhi
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Zhang, Li
  • Li, Liang
  • Wang, Zinan
  • Chang, Ming

Abstract

An inspection device (100) and an inspection method for a battery cell (200). The inspection device (100) comprises: a supporting mechanism (10), a rotating mechanism (20), a conveying mechanism (30), a rotary mechanism (40), and an inspection mechanism (23). The rotating mechanism (20) is arranged on the supporting mechanism (10), and the rotating mechanism (20) comprises a rotating support (21) and a rotating disc (22), wherein the rotating support (21) is arranged on the supporting mechanism (10), and the rotating disc (22) can circumferentially rotate relative to the rotating support (21); the conveying mechanism (30) runs through the rotating disc (22), and the conveying mechanism (30) is suitable for conveying the battery cell (200); the rotary mechanism (40) is arranged between the supporting mechanism (10) and the rotating mechanism (20), and the rotating mechanism (20) can rotate relative to the supporting mechanism (10) under the support of the rotary mechanism (40); and the inspection mechanism (23) is arranged on the rotating disc (22), and the inspection mechanism (23) comprises a ray source (231) and a detector (232), wherein the ray source (231) and the detector (232) are suitable for inspecting the battery cell (200) on the conveying mechanism (30), and the ray source (231) and the detector (232) are suitable for circumferentially rotating on the rotating disc (22). The inspection device (100) can improve the inspection quality and the inspection efficiency while reducing the placement requirements of the battery cell (200).

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
  • G01N 23/18 - Investigating the presence of defects or foreign matter
  • G01B 15/00 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons

94.

CT IMAGING SYSTEM

      
Application Number 18699360
Status Pending
Filing Date 2022-09-29
First Publication Date 2024-12-12
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Zhang, Li
  • Chen, Zhiqiang
  • Chang, Ming
  • Jin, Xin
  • Huang, Qingping
  • Hong, Mingzhi
  • Zhang, Liguo

Abstract

A CT imaging system is provided, including: a scanning channel disposed in a first direction; a radiation source component disposed on one side of the scanning channel, wherein the radiation source component is used to emit radiation beams; a detector component disposed on another side of the scanning channel, wherein the detector component is disposed opposite to the radiation source component and used to receive the radiation beams, and the radiation beams forms an imaging region between the radiation source component and the detector component, wherein the detector component includes at least two detection regions and at least one blank region, the imaging region has a central cross-section of the radiation beams extending through the radiation source component, and a position of the detection region and a position of the blank region are complementary with respect to the central cross-section of the radiation beams.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

95.

ATTITUDE ADJUSTMENT STRUCTURE, CONVEYING DEVICE, RADIATION IMAGING SYSTEM

      
Application Number 18697918
Status Pending
Filing Date 2022-10-08
First Publication Date 2024-12-12
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Huang, Qingping
  • Hong, Mingzhi
  • Zhang, Li
  • Chen, Zhiqiang
  • Li, Yuanjing
  • Li, Guipei
  • Yang, Jianxue
  • Zhang, Liguo

Abstract

The present disclosure relates to a field of detection apparatus technology, and in particular, to an attitude adjustment structure, a conveying device, and a radiation imaging system. An attitude adjustment structure includes: a base body, arranged in an X direction, the base body having a bearing surface, and the bearing surface being configured to place a detected object; a first adjustment assembly, arranged on the base body and configured to drive the detected object to deviate around a Y direction on the bearing surface and drive the detected object to move in the X direction; and at least one second adjustment assembly, arranged on the base body and configured to drive the detected object to rotate around a Z direction.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

96.

INSPECTION DEVICE USED FOR SCANNING AND INSPECTING OBJECT TO BE INSPECTED

      
Application Number 18698356
Status Pending
Filing Date 2022-09-29
First Publication Date 2024-12-12
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Huang, Qingping
  • Jin, Xin
  • Chang, Ming
  • Hong, Mingzhi
  • Zhang, Liguo

Abstract

An inspection device includes: an inspection channel, through which the object enters and exits the inspection device; an imaging system, including a radiation source used to generate a ray, the radiation source is disposed on one side of the inspection channel, and the ray at least forms a main beam surface applicable to scan and inspect the object; and a detector used to receive the ray passing through the object, the detector is disposed on the other side of the inspection channel to form an inspection region between the radiation source and the detector; and a posture adjustment structure disposed in the inspection region and used to adjust a posture of the object in the inspection region. The object has an inspection surface. The posture adjustment structure may adjust the posture of the object, so that the inspection surface and the main beam surface are in the same plane.

IPC Classes  ?

  • G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

97.

MOBILE RADIATION INSPECTION APPARATUS AND MOBILE RADIATION INSPECTION SYSTEM

      
Application Number 18716943
Status Pending
Filing Date 2022-12-16
First Publication Date 2024-12-12
Owner
  • NUCTECH (BEIJING) COMPANY LIMITED (China)
  • NUCTECH COMPANY LIMITED (China)
Inventor
  • Sun, Shangmin
  • Zong, Chunguang
  • Yang, Xuejing
  • Fan, Xuping
  • Song, Quanwei
  • Shi, Junping
  • Meng, Hui
  • Yang, Yang
  • Yu, Weifeng
  • Li, Ying
  • Wang, Dongyu
  • Liu, Lei
  • Liu, Bicheng
  • Chi, Haojie

Abstract

A mobile radiation inspection apparatus includes a vehicle body, a traveling mechanism, a boom assembly, a first imaging device, and a second imaging device. The boom assembly is mounted on the vehicle body and is configured to switch between an inspection state and a transportation state. The first imaging device includes a first ray source and a first ray detector both mounted on the boom assembly. The first ray source is positioned at the top of an inspection channel. The second imaging device includes a second ray source and a second ray detector. The second ray detector cooperates with the second ray source to detect rays emitted by the second ray source, and the second ray source is positioned on a side surface of the inspection channel. The mobile radiation inspection apparatus implements multi-angle and multi-mode scanning.

IPC Classes  ?

  • G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

98.

INSPECTION SYSTEM AND INSPECTION METHOD

      
Application Number 18574638
Status Pending
Filing Date 2022-07-06
First Publication Date 2024-11-14
Owner
  • Tsinghua University (China)
  • Nuctech Company Limited (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Huang, Qingping
  • Zhou, Yong
  • Ding, Hui
  • Jin, Xin
  • Ji, Chao

Abstract

Provided are an inspection method, and an inspection system including: at least one ray source; a detector assembly and a conveying device. At least one ray source and the detector assembly may move in a traveling direction relative to the conveying device, so that the to-be-inspected object may enter an inspection region. When viewed along a central axis of the inspection region, at least one ray source may translate between scanning positions, and a translation distance of at least one ray source between two adjacent scanning positions is greater than a spacing between adjacent target spots of each ray source. When at least one ray source is located at one scanning position, at least one ray source and the detector assembly move in the traveling direction and at least one ray source emits X-rays. After moving a predetermined distance, at least one ray source translates to another scanning position.

IPC Classes  ?

  • G01V 5/226 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography

99.

RAY COLLIMATION DEVICE AND RADIATION INSPECTION DEVICE

      
Application Number 18690081
Status Pending
Filing Date 2022-07-22
First Publication Date 2024-11-14
Owner NUCTECH COMPANY LIMITED (China)
Inventor
  • Liu, Yaohong
  • Yin, Wei
  • Chen, Yumei
  • Guan, Weiqiang
  • Li, Weike

Abstract

Provided are a ray collimation device and a radiation inspection device. The ray collimation device includes a collimation assembly, a transmission assembly, and a driving assembly. The collimation assembly includes a first collimation block and a second collimation block. A collimation opening for collimating rays is provided between the first collimation block and the second collimation block. The transmission assembly includes a first transmission component and a second transmission component connected in a transmission manner, the second transmission component is connected to the driving assembly, and the first transmission component is connected to the first collimation block and the second collimation block. Under a drive of the driving assembly, the first transmission component is movable to drive the first collimation block and the second collimation block to move toward or away from each other at a same speed, thereby adjusting a width of the collimation opening.

IPC Classes  ?

  • G21K 1/04 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
  • G01N 23/06 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption

100.

RAY SCANNING APPARATUS

      
Application Number 18575789
Status Pending
Filing Date 2022-07-01
First Publication Date 2024-11-07
Owner
  • Nuctech Company Limited (China)
  • Tsinghua University (China)
Inventor
  • Chen, Zhiqiang
  • Zhang, Li
  • Huang, Qingping
  • Jin, Xin
  • Ding, Hui
  • Zhou, Yong
  • Hu, Baoyauan
  • Zhao, Zhenhua

Abstract

A ray scanning apparatus, including: a conveying device for conveying an object under inspection to pass through a scanning area; a ray source assembly including a plurality of ray source modules arranged around the scanning area on an upper side of the conveying device and fixed in a plane perpendicular to a conveying direction of the object under inspection; and a detector assembly including a plurality of detector sets fixed in a plane perpendicular to the conveying direction of the object under inspection; the detector assembly is located between the ray source assembly and the scanning area in a direction perpendicular to the conveying direction of the object under inspection, the ray source assembly and the detector assembly are arranged to overlap at least partially in the conveying direction of the object under inspection, and the plurality of ray source modules are mounted and detached independently of each other.

IPC Classes  ?

  • G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
  • G01N 23/06 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption
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