The present invention relates to the technical field of community age-friendliness evaluation. Specifically disclosed are a community age-friendliness evaluation method and system based on multi-source data fusion. The method comprises: S1, detection of the numbers of people entering and leaving a target community; S2, target community traffic suitability analysis; S3, target community leisure facility perfection evaluation; S4, target community microenvironment suitability analysis; S5, target community age-friendliness evaluation; and S6, target community processing. According to the present invention, by analyzing the number of old people traveling, the defect in the prior art of the lack of attention paid to the number of old people traveling is overcome, so that the accuracy of a community traffic convenience analysis result is guaranteed, and the accuracy of community age-friendliness evaluation is improved. The present invention guarantees that the position of a community is in an area with traffic convenience, traveling of old people is better facilitated, and the relationship between community traffic convenience and age-friendliness is balanced, thereby improving the accuracy of community age-friendliness analysis results.
SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES (China)
SHENZHEN INSTITUTE OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES (China)
HARBIN INSTITUTE OF TECHNOLOGY , SHENZHEN (China)
Inventor
Gao, Xiang
Yang, Wenjun
Lu, Lu
Pi, Shanshan
Yang, Ruijie
Zhang, Yizhi
Yu, Yongjie
Abstract
The present invention relates to the technical field of biology, and particularly provides a mass production method for a material-microorganism hybrid and the use thereof in biological manufacturing and wastewater treatment. By means of changing and modification of the metabolic pathway of a microorganism, a genetically engineered microorganism capable of synthesizing a semiconductive material-microorganism hybrid by using heavy metal ions and sulfates in industrial electroplating wastewater is constructed. In addition, by means of introducing a chemical product synthesis route into the hybridization system, a hybrid for producing chemical products by using organic wastes is constructed, and furthermore, a mass production method for synthesizing chemical products by using the hybrid is developed.
22O. In addition, as the denitrification efficiency increases, the quantity of filler used in a reaction tank, the area occupied by the reaction tank and the investment cost per ton of water are all reduced accordingly.
Provided in the present invention is a backwashing regulation method for an autotrophic denitrification filter using sulfur-based fillers. In the method, wastewater can be effectively treated by means of controlling the backwashing frequency and strength; in addition, nitrogen gas accumulated in a bed can be controlled by means of controlling the backwashing frequency and strength; furthermore, the thickness of a biological film can also be controlled, and the nitrate nitrogen concentration in effluent can also be monitored in real time by means of an online monitoring device; and a feedback system is provided, and comparison is performed between the nitrate nitrogen concentration in effluent that is fed back and a set value, so as to regulate the backwashing frequency and the backwashing strength, and thus not only are sewage treatment procedures effectively reduced, but the sewage treatment cost can also be effectively reduced, and the sewage treatment effect is thus improved.
The present invention provides a method for directionally regulating a sulfur-based filler autotrophic denitrification filter. In the method, denitrification treatment of wastewater is achieved by means of adjusting the water drop height, exposing a reaction bed layer, and dosing a sulfur source. In addition, a dissolved oxygen probe, a liquid level detector, a bed layer height monitor, and an online nitrate nitrogen monitoring device are arranged in the denitrification filter. Nitrate nitrogen content in influent and effluent wastewater is monitored in real time, and the difference between the two values is calculated by means of a central control system, and by means of comparing the difference with a set value, the water drop height is promptly regulated, the reaction bed layer is exposed, and the sulfur source is dosed. The method can not only achieve regulation for high denitrification loads but can also achieve regulation for low loads, such that nitrate nitrogen removal content is controlled within a certain range, which not only facilitates improving wastewater treatment effectiveness but can also effectively reduce treatment costs, making the method suitable for being applied to actual production.
A casualty recognition method based on a deep-learning neural network. The casualty recognition method comprises the following steps: S10, acquiring at least one casualty picture in a casualty gathering place environment by means of a depth camera, and performing gathering to form a site data set of casualty pictures; S20, by means of data augmentation, generating an additional casualty picture of a smaller size for an original casualty picture captured at close range in the site data set, and associating the additional casualty picture with the original casualty picture and then storing the additional casualty picture in the site data set; and S30, inputting a site picture captured by the depth camera into a deep-learning-based neural network, so as to calculate and output the number of casualties in the site picture, wherein the neural network is trained using a pre-training data set and the site data set. Further provided is a casualty recognition system based on a deep-learning neural network. The system comprises a depth camera, a memory, and a processor, wherein the processor implements the method when executing instructions stored in the memory.
A heterogeneous surface electromyography acquisition apparatus, comprises a main control module, a power supply management module, a data transmission module, a first electromyography acquisition assembly and a second electromyography acquisition assembly. The main control module is separately in communication connection with the first electromyography acquisition assembly and the second electromyography acquisition assembly. The power supply management module supplies power. The data transmission module communicates with the main control module and communicates with a host computer. The first electromyography acquisition assembly is used for acquiring a high-density electromyographic signal and comprises a plurality of high-density electromyography acquisition modules which are connected to electrodes in a single-ended input mode. The second electromyography acquisition assembly acquires a distributed electromyographic signal and comprises distributed electromyography acquisition modules which are connected to wet electrodes in a differential input mode. The electromyography acquisition apparatus collects at least a 128 channel high-density electromyography and 8-channel distributed electromyography, the sampling frequency is 1 kHz, and the data precision is 24 bits.
Provided are a floating and submerging power apparatus (100), a floating and submerging system, a floating and submerging control method, and an application. The floating and submerging system comprises a floating and submerging power apparatus (100), wherein the floating and submerging power apparatus (100) comprises an emergency battery (120) and an aluminum-air battery, an electrolyte (112) of which contains water. The floating and submerging control method comprises the following steps: electrically connecting an aluminum-air battery to an emergency battery (120), and the emergency battery (120) electrolyzing water in an electrolyte (112) of the aluminum-air battery to generate oxygen and hydrogen, such that the gravity of a floating and submerging power apparatus (100) is less than the buoyancy thereof, and a floating motion is performed. By means of combining an emergency battery (120) with a metal-gas battery (110), power for a floating and submerging power apparatus (100) to float is provided. The floating and submerging control method is simple to operate, and can efficiently and conveniently realize the floating of a floating and submerging power apparatus (100), thereby facilitating underwater operation of a floating and submerging device.
A path planning method for a mobile robot, an autonomous navigation method, a computer-readable storage medium, and a computer apparatus. The path planning method comprises: in response to a path planning request, acquiring pedestrian information in a target area; according to the locations of pedestrians, classifying the pedestrians by means of a static map, so as to obtain a classification result; acquiring pedestrian information of pedestrians in each grid, and performing clustering processing on the movement directions of the pedestrians, so as to obtain a plurality of clustering results; according to the clustering results, determining a mixed von Mises distribution of each grid; according to the mixed von Mises distribution, determining a pedestrian movement direction preference of the grid; and according to the mixed von Mises distribution and the pedestrian movement direction preference in each grid, determining an optimal global movement path of a mobile robot. The autonomous navigation method further comprises: on the basis of a given destination location and an initial location of a robot, acquiring an obstacle-free global path, and dividing the global path into a plurality of road points, wherein there are a plurality of road point intervals between adjacent road points; for each road point, acquiring a plurality of pieces of pedestrian information by means of a detection module, and inputting the pedestrian information by means of a linear speed model, so as to obtain predicted pedestrian trajectory location information, wherein the pedestrian information comprises pedestrian location data, pedestrian speed data and pedestrian occupation area radius data; calculating each piece of pedestrian trajectory location information around road points at the current time point, searching, according to the predicted pedestrian trajectory location information, for the next collision-free road point of a pedestrian in the shortest linear distance from predicted pedestrian location information, and also maintaining the robot in an interpersonal distance from the pedestrians during a moving process of the robot according to an interpersonal distance model; and providing a metabolic energy objective function and a closed-loop control model of the robot, inputting a linear speed and an angular speed of the robot into the metabolic energy objective function, so as to output a metabolic energy value of the robot, inputting the metabolic energy value into the closed-loop control model, transmitting trajectory data for reaching the next road point to a motion controller of the robot, and then controlling the robot to move to the next road point. A program instruction is stored on the computer-readable storage medium, and when executed by a processor, the program instruction implements the path planning method or the autonomous navigation method. The computer apparatus comprises an image collection device and a computer-readable storage medium.
Disclosed in the present invention are a many-to-many laser communication deployment apparatus and method. The apparatus comprises: a light field array control module, a transceiving lens array module, an array phase detection module, an array feature light splitting module, a light beam switch array module and a signal transmission module, the light field array control module being used for receiving multiple laser beams having different angles and carrying out corresponding angle adjustment on the laser, the transceiving lens array module being used for converting into multiple second optical fiber light beams the laser which has been subjected to angle adjustment, the array feature light splitting module being used for analyzing the second optical fiber light to obtain second feature information, and the light beam switch array module being used for, according to the second feature information, controlling the second optical fiber light to be demodulated into a baseband signal via a first path or to be forwarded via a second path. According to the second feature information, the light beam switch array module controls the plurality of second optical fiber light beams to be demodulated into the baseband signal via the first path or to be forwarded via the second path, so as to achieve simultaneous and flexible reception and transmission of the plurality of laser beams, and reduce power consumption.
A robot-based assembly control method, comprising providing a plurality of neural network models, the plurality of neural network models at least comprising a reinforcement learning network model and a tensor fusion network model, and training data comprising vision data from a vision device, touch data from a touch sensor, action feedback data of a robot, and torque feedback data. A computer-readable storage medium implementing the control method. A robot-based assembly control system, comprising: a clamping actuator arranged at the tail end of a moving part of a robot and a vision device matching the robot, a touch sensor and a soft rubber pad being sequentially arranged from inside to outside on the inner clamping side of the clamping actuator. External force information of other dimensions is indirectly obtained by using change of a touch signal, the external force information is combined with vision information, and representation vectors can be used for generating a proper robot action instruction and flexibly adjusting insertion force to complete assembly.
Disclosed in the present invention are an energy-saving data offloading apparatus and method for a cloud radio access network based on an unmanned aerial vehicle. The method comprises: establishing a system model for a cloud radio access network based on an unmanned aerial vehicle; according to an energy-saving data offloading system model of the cloud radio access network based on the unmanned aerial vehicle, constructing a data offloading optimization problem; and solving an optimal parameter of the data offloading optimization problem. The beneficial effects are as follows: the combination of an unmanned aerial vehicle communication technology and a cloud radio access network technology can effectively improve the quality of service of a communication system, and meet the requirements of a user equipment (UE). Due to the characteristics of the high maneuverability of an unmanned aerial vehicle, the system can also cope with emergencies, so as to ensure communications under extenuating conditions, and the system is also applicable in some areas with complex terrains; and access allocation of the UE of the system, computing power allocation, a transmission power of the UE and the path of the unmanned aerial vehicle are optimized, thereby reducing the power loss of the UE during a communication process of the system, and improving the performance of the whole system.
H04W 4/44 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
Disclosed in the present invention is a manufacturing method for a 3D microelectrode. The manufacturing method comprises the following steps: (1) manufacturing a 3D model of a 3D microelectrode; (2) pouring a flexible material into the 3D model, and performing demolding so as to form a flexible mold having a cavity, wherein the cavity of the flexible mold can be fitted to the 3D model; (3) performing silanization treatment on the flexible mold, then pouring a flexible material into the surface of the flexible mold having the cavity, and performing demolding so as to form a flexible 3D microelectrode substrate; and (4) manufacturing a conductive layer on the flexible 3D microelectrode substrate so as to form the 3D microelectrode. In the present invention, a 3D microelectrode having an ultrahigh microcolumn height can be manufactured by using a 3D printing technology and a two-time mold-reversing method; furthermore, a flexible material is used as a substrate, so that the formed 3D microelectrode has the characteristics of low costs, rapidness, high precision and flexibility, and can be used in the field of electrochemical analysis on wearable devices.
B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles
14.
UNDERWATER COMBINED LASER AND WATER FLOW CLEANING SYSTEM AND METHOD
Provided are an underwater combined laser and water flow cleaning system and method, relating to the technical field of laser cleaning devices, and comprising a laser cleaning device and a water circulation filtering device. The laser cleaning device comprises a laser cleaning work head suitable for cleaning a substrate to be cleaned. The interior of the laser cleaning work head comprises a first chamber suitable for laser emission, a second chamber suitable for water flow cleaning, and a sealing member provided between the first chamber and the second chamber. The first chamber and the second chamber are sequentially arranged from top to bottom along a laser emission direction inside the laser cleaning work head. The second chamber is in communication with the water circulation filtering device, and is suitable for the circulation of a water flow. In the present invention, combined laser and water flow cleaning is achieved. During the combined cleaning of laser cleaning and water flow cleaning, removed contaminants are carried away by the water flow, thereby ensuring the strength of the laser reaching the surface of the substrate to be cleaned, while also achieving environmental protection and reducing pollution.
Provided are an L-carnitine-based emulsion and method for preparation thereof. The method for preparing the L-carnitine-based emulsion comprises: adding organic acid and L-carnitine to water to obtain an L-carnitine-based ionic salt solution; mixing an emulsifier with a co-emulsifier to obtain a mixed emulsifier; mixing said mixed emulsifier with an oil phase, L-carnitine-based ionic salt solution to obtain an L-carnitine-based emulsion. Also provided is a drug comprising said L-carnitine-based emulsion.
A61K 31/4439 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. omeprazole
A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
A61K 31/192 - Carboxylic acids, e.g. valproic acid having aromatic groups, e.g. sulindac, 2-aryl-propionic acids, ethacrynic acid
Disclosed are a wheel and a moving device thereof. The wheel comprises a power mechanism, a wheel hub, an extensible and retractable wheel rim and multiple extensible and retractable wheel spokes. One end of each of the multiple wheel spokes is separately hinged to the wheel hub, and the other end is separately hinged to the wheel rim; the power mechanism is connected to the wheel hub and is used for driving the wheel hub to rotate, so that the wheel hub drives the multiple wheel spokes to extend and retract, thus the multiple wheel spokes drive the wheel rim to extend and retract synchronously. In the present application, the wheel hub is driven by the power mechanism to rotate, so that the wheel hub drives the multiple wheel spokes to extend and retract, and the multiple wheel spokes drive the wheel rim to extend and retract synchronously, so that the diameter of the wheel is variable, the wheel having the variable diameter can adapt to different road conditions, and therefore the traffic capacity of the wheel is improved.
B60B 19/00 - Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
B62D 61/10 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with more than four wheels
A wheel (10) and a wheeled robot (100) with the wheel (10), the wheel (10) comprising a hub (1), an extendable and retractable rim (2), a plurality of extendable and retractable spokes (3) and a plurality of power mechanisms (4). One end of each of the plurality of spokes (3) is slidably arranged on the hub (1), the other end thereof is hinged with the rim (2), the plurality of power mechanisms (4) are connected to the plurality of spokes (3) in a one-to-one correspondence, and the plurality of power mechanisms (4) are configured to drive the corresponding spokes (3) to extend and retract, so that the plurality of spokes (3) drive the rim (2) to also extend and contract, which results in the diameter of the wheel (10) being variable. The wheel (10), which has a variable diameter, can be adapted to various road conditions, thereby improving the driving capacity of the wheel (10).
Provided is a steel wire rope tension defect detection method, comprising the following steps: step S10: arranging an excitation sensor (10) on a first position of a steel wire rope (40) to be tested, and arranging a detection sensor (20) on a second position of the steel wire rope (40); step S20: obtaining the magnitude of the tension on the steel wire rope (40), and obtaining a first display diagram corresponding to the magnitude of the tension; step S30: loading a white noise signal onto the excitation sensor (10) by means of a power amplifier; step S40: obtaining a detection signal collected by the detection sensor (20) during a first preset time period; step S50: uploading the detection signal to a PC and then performing FFT processing, to generate a second display diagram showing a natural frequency spectrum and a direct guided wave amplitude; step S60: according to the first display diagram and the second display diagram, determining whether the steel wire rope (40) is defective; if so, then performing step S70; step S70: determining the position of the defect in the steel wire rope (40). A white noise signal is applied to a microfine steel wire rope (40) by means of a longitudinal wave guide sensor to detect the natural frequency of the microfine steel wire rope (40); the tension to which the steel wire rope (40) is subjected is detected by using the change of the natural frequency, and the tension is simultaneously monitored for changes; the excitation frequency of the guided wave is selected according to the detected natural frequency to achieve the maximum amplitude of the guided wave; according to the guided wave signal, it is determined whether there is a defect in the steel wire rope (40), and the position of the defect is precisely calculated.
A pipe robot (10), comprising a movement mechanism (1), a telescopic arm (2) and an elastic mechanism (3). The telescopic arm (2) is arranged on the elastic mechanism (3). The movement mechanism (1) is arranged on an end of the telescopic arm (2) far from the elastic mechanism (3). The movement mechanism (1) can move along the inner wall of the pipe, thereby driving the telescopic arm (2) and the elastic mechanism (3) to move along the pipe. When the movement mechanism (1) moves to a location of the pipe where the diameter of the pipe is relatively small, the inner wall of the pipe presses the movement mechanism (1). The movement mechanism (1) presses the telescopic arm (2), causing the telescopic arm (2) to contract, thereby causing the pipe robot (10) to be able to move through locations in the pipe with relatively small pipe diameters. When the movement mechanism (1) moves to a location in the pipe with a relatively small pipe diameter, under the influence of the elastic mechanism, the telescopic arm (2) extends, thereby causing the telescopic arm (2) to drive the movement mechanism (1) to move along the direction of the inner wall of the pipe, until the movement mechanism (1) comes in contact with the pipe inner wall, thereby causing the pipe robot (10) to be able to move in locations with relatively small pipe diameters.
Disclosed are a scissor-type extendable device and an unmanned aerial vehicle using same. The scissor-type extendable device comprises a first extendable arm, a second extendable arm and a driving assembly, wherein the driving assembly is connected to the first extendable arm, the first extendable arm and the second extendable arm are hinged to each other, and the driving assembly is used for driving the first extendable arm to extend and retract, such that the first extendable arm drives the second extendable arm to synchronously extend and retract. By means of additionally providing the second extendable arm, the extension range of the first extendable arm can be increased, such that the scissor-type extendable device can be used in special environments, thereby improving the applicability of the scissor-type extendable device.
A telescopic device (10) and an unmanned aerial vehicle (100) applying the telescopic device. The telescopic device comprises a driving mechanism (1), a linkage mechanism (2) and a plurality of telescopic arms (3); the plurality of telescopic arms are respectively hinged to one end of the linkage mechanism, the driving mechanism is hinged to the end of the linkage mechanism away from the telescopic arms, and the driving mechanism drives the linkage mechanism to rotate, so that the linkage mechanism drives the plurality of telescopic arms to extend or retract synchronously. As the linkage mechanism has a linkage property, the driving mechanism drives the linkage mechanism to rotate, so that the linkage mechanism can drive the plurality of telescopic arms to extend or retract synchronously, thereby improving the linkage property of the telescopic device. As one linkage mechanism can simultaneously drive the plurality of telescopic arms to extend or retract synchronously, only one driving mechanism needs to be used for driving the linkage mechanism to rotate, thereby reducing the number of driving mechanisms and reducing the cost of the telescopic device.
A heat pipe and a geothermal heat collection device. The heat pipe (100) comprises a sealing member (120), a first pipe body (110), a first heat transfer member (130) and a second heat transfer member (140); the sealing member (120) is provided with channels (121); one end of the first pipe body (110) is provided with an opening (111), the other end of the first pipe body is sealed by the sealing member (120), and a first cavity body (112) for accommodating a heat transfer working medium is provided inside the first pipe body; the first heat transfer member (130) is connected to the sealing member (120) and located at one side of the sealing member (120), and a cavity is provided inside the first heat transfer member; and the second heat transfer member (140) is connected to the sealing member (120) and located at the other side of the sealing member (120), and a cavity is provided inside the second heat transfer member, and the cavity can communicate with the cavity in the first heat transfer member (130) by means of the channels (121), so that the second heat transfer member and the first heat transfer member jointly define a second cavity body (113) for accommodating the heat transfer working medium, and the second cavity (113) is separated from the first cavity body (112). Heat transfer can be performed between the adjacent heat pipes (100) by means of interstage heat pipes formed by the first heat transfer member (130) and the second heat transfer member (140); the interstage heat pipes have a low heat resistance, can extend into the first cavity body (112) to be fully in contact with the steam, facilitating the improvement of the heat exchange efficiency.
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
F24T 10/17 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
23.
Image privacy perception method based on deep learning
Harbin Institute of Technology Shenzhen Graduate School (China)
Inventor
Wang, Hongpeng
Zhang, Yang
You, Lei
He, Huamen
Huang, Xingsen
Abstract
An image privacy perception method based on deep learning, including the following steps: S1, building a privacy classification data set with labeled categories, and training a privacy perception network with a transfer learning method; S2, recognizing a privacy image using a deep convolutional neural network oriented to privacy perception; and S3, extracting an attention profile according to deep convolutional features of the neural network, and locating an attention focusing region to complete the perception of an image privacy region. The method has the following beneficial effects: by completing end-to-end training and testing based on the deep neural network, the privacy image can be accurately distinguished with the privacy region located, facilitating the selective protection of the privacy information in the image.
A gas purification treatment device (100) and method. The gas purification treatment device (100) comprises: a photooxidation reactor (110), a catalytic ozonation reactor (120), and a photocatalysis reactor (130); a light source (114) is provided in the photooxidation reactor (110), the light source (114) emits first light and second light, and the photooxidation reactor (110) is used for performing a first-stage purification treatment on a gas under the irradiation of the first light; the catalytic ozonation reactor (120) is filled with an ozonation catalyst, and is in communication with the photooxidation reactor (110) and used for performing a second-stage purification treatment on the gas; the photocatalysis reactor (130) is filled with a photocatalyst, and is in communication with the catalytic ozonation reactor (120) and used for performing a third-stage purification treatment on the gas under the irradiation of the second light. The photocatalysis reactor (130) and the photooxidation reactor (110) are provided adjacent to each other and are separated by a light-transmitting component, such that the second light can penetrate the light-transmitting component and enter the photocatalysis reactor (130).
Disclosed are an aluminum alloy powder that is capable of blooming, a preparation method therefor, and the use thereof. The aluminum alloy powder that is capable of blooming is composed of a spherical aluminum matrix and nano-particles distributed in the spherical aluminum matrix in a dispersed. The nano-particles contain bismuth, but do not contain tin, or contain bismuth and tin. The aluminum alloy powder that is capable of blooming is spherical particles having a smooth surface, and is prepared by using a supersonic atomization quenching method. The aluminum alloy powder is used for reacting with gaseous water to produce hydrogen, and has a blooming-like appearance and morphology evolution process during the reaction thereof with gaseous water. The present invention has a very high aluminum-hydrogen conversion efficiency, and can be widely used in the fields of the production of hydrogen from gaseous water, the portable supply of hydrogen, and the medical use of hydrogen.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
A method for quick detection of damage to a bridge (103), and a related device. In the method, damage detection is performed on a bridge (103) according to vehicle body vibration response data of a vehicle (102) crossing the bridge and a preset evaluation condition. Since vehicle body vibration response data of a vehicle (102) crossing a bridge can be obtained more easily, maintenance can be performed conveniently. The invention can effectively improve the speed and convenience of a method for indirect identification of damage to a bridge (103).
Disclosed is a conductive membrane and a preparation method thereof, belonging to the technical field of membrane separation. The conductive membrane provided in the present application comprises a porous base membrane layer, a porous intermediate transitional membrane layer, and a porous conductive membrane layer stacked in sequence. At least some pores in the base membrane layer are connected to the pores of the conductive membrane layer via the pores of the intermediate transitional membrane layer. The base membrane layer, the intermediate transitional membrane layer and the conductive membrane layer are made of the same material. The conductive membrane provided in the present application can be combined with electrochemical technology, and exhibits novel and excellent performance while achieving a separation function. The configuration of the three-layer porous membrane structure enables the conductive membrane provided in the present application to reduce membrane resistance and obtain a high retention efficiency as well as a high solution penetration under low-pressure driving, reducing energy consumption. The conductive membrane can be combined with electrochemical technology, improving the separation function of the membrane and reducing membrane pollution, and reducing material consumption.
The present invention provides a fingertip mechanism, comprising a support, a rotary table, a friction wheel, a first rotation driving mechanism for driving the rotary table to rotate, and a second rotation driving mechanism for driving the friction wheel to rotate. The first rotation driving mechanism and the second rotation driving mechanism are provided on the support, respectively. The rotary table is connected to the first rotation driving mechanism. The rotary table is provided with a rotary table groove for accommodating a cylindrical body. The friction wheel is provided at the bottom of the rotary table groove. The friction wheel is connected to the second rotation driving mechanism. The present invention has the beneficial effects that the rotary table can be driven by the first rotation driving mechanism to rotate, so that in-hand rotational motion of the cylindrical body is realized, and the friction wheel can be driven by the second rotation driving mechanism to rotate to apply tangential friction force to the cylindrical body, so that in-hand translational motion of the cylindrical body is realized.
An ultra-redundant linkage flexible mechanical arm based on closed-loop driving ropes, comprising a mechanical arm set (1), a driving rope set (2), and a driving part (3). The driving part (3) pulls the driving rope set (2); the driving rope set (2) pulls the mechanical arm set (1) to enable the mechanical arm set to swing; the driving rope set (2) comprises a first driving rope (21) and a second driving rope (22); a head end (21a) of the first driving rope (21) and a head end (22a) of the second driving rope (22) are connected to the mechanical arm set (1), separately; a tail end (21b) of the first driving rope (21) is connected to the driving part (3); a tail end (22b) of the second driving rope (22) penetrates through a rope transfer part (4) to be connected to the driving part (3); the rope transfer part (4) enables a direction in which the second driving rope (22) pulls the mechanical arm set (1) to be opposite to a direction in which the first driving rope (21) pulls the mechanical arm set (1).
A vertical etching process for preparing titanium dioxide with a high aspect ratio, comprising: plating a specific thickness of titanium dioxide on an ITO glass sheet, and uniformly spin-coating a layer of PMMA photoresist on the titanium dioxide; denaturing and curing the scanned PMMA by means of an electron beam direct writing process, removing the PMMA that has not been denatured and cured, and then plating a metal mask where no PMMA is present; and then vertically etching the titanium dioxide and the metal mask at different etching rates to obtain titanium dioxide with a high aspect ratio. The process has the advantages of approximately vertical sidewalls, a high selectivity ratio, the ability to process structures with large aspect ratios, and convenient processing.
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
Disclosed is a local feature-based three-dimensional face recognition method and system. Said method comprises: acquiring, according to a support vector machine-based face and nasal tip detection algorithm, a face region to be extracted of a three-dimensional face image to be recognized; acquiring an iso-geodesic contour line and a radial curve of said face region; acquiring, according to the iso-geodesic contour line and the radial curve, a geodesic distance between said face region and a curve corresponding to a pre-stored three-dimensional face image by using a shape analysis algorithm; and acquiring, according to the geodesic distance, the similarity between said face region and the curve corresponding to the pre-stored three-dimensional face image. Compared with the prior art, the present invention reduces the number of points participating in calculation in a three-dimensional face recognition process, increases the algorithm speed, and improves the robustness of expression change of a three-dimensional face.
Disclosed are a rotary joint electromagnetic locking device and a rotary joint. The rotary joint electromagnetic locking device comprises a first electromagnetic chuck, a sliding disk, a rotary disk, a connecting shaft for connecting the first electromagnetic chuck and the sliding disk, and a second electromagnetic chuck; when both the first electromagnetic chuck and the second electromagnetic chuck have no attractive force, the sliding disk and the rotary disk are mutually lockable; when the second electromagnetic chuck has an attractive force, the rotary disk or the first electromagnetic chuck is attracted by the second electromagnetic chuck, so that the sliding disk is further locked to the rotary disk; and when the first electromagnetic chuck has an attractive force, the sliding disk can be attracted to a first contact face of the first electromagnetic chuck, so as to release the sliding disk from the rotary disk. In this way, the present invention enables tight locking of two rotary parts.
A method for preparing a polyionic liquid-based thermoelectric material, comprising: mixing and grinding polyionic liquid and macromolecular sulfonic acid to obtain sulfonic acid doped polyionic liquid; dissolving the sulfonic acid doped polyionic liquid in a phenol solvent and stirring the mixed solution to obtain a polyionic liquid solution; and adding a nanocarbon material to the polyionic liquid solution, stirring and drying the mixture to obtain the polyionic liquid-based thermoelectric material. The method improves the ordering degree of the molecular chains of the polyionic liquid by means of the interaction of the phenol solvent and the polyionic liquid molecules, and then, by combination with the nanocarbon material, achieves the ordered accumulation of the polyionic liquid molecules by means of the induction of the carbon nanotubes, and further enhances the ordering degree of molecular chains of the polyionic liquid to obtain the high-performance polyionic liquid-based thermoelectric material.
H01L 35/34 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
C08L 65/00 - Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCompositions of derivatives of such polymers
An image semantic segmentation method and system. The method comprises the following steps of: when an image semantic segmentation instruction is received, processing an image to be processed by means of a pre-trained convolutional neural network model so as to obtain a feature map containing global context information; performing sampling processing on the feature map by using a bilinear interpolation or a transposed convolution so as to obtain a processed feature map; and processing the edges of the processed feature map by using a preset mode so as to obtain a semantic segmentation image corresponding to the image to be processed. Therefore, the precision of image semantic segmentation is improved.
A rope driving-based two-degree-of-freedom flexible robot joint with a large rotation angle, and a robot, said joint comprising a first joint rod (1), a second joint rod (2) and rotating connecting members (4); one ends of the rotating connecting members (4) are connected to first hinge members (5) in a hinged manner, the first hinge members (5) are connected to the first joint rod (1) in a hinged manner, second hinge members (6) are connected to the other ends of the rotating connecting members (4) in a hinged manner, and the second hinge members (6) are connected to the second joint rod (2) in a hinged manner. The rope driving-based two-degree-of-freedom flexible robot joint with a large rotation angle has the advantages of large-angle rotation and more flexibility.
An experimental platform for a cable-driven flexible robot, the platform comprising a driving module (1) and a flexible arm module (2); the driving module (1) is used to provide power, and the flexible arm module (2) simulates a joint section of an actual cable-driven flexible robot and moves under the drive of the driving module (1). The driving module (1) comprises a drive motor (10), a lead screw (11) and a lead screw nut (12); the lead screw (11) is connected to the drive motor (10) and rotates under the drive of the drive motor (10); the lead screw nut (12) is threadedly connected to the lead screw (11), and when the lead screw (11) rotates, the lead screw nut (12) may move along the axial direction of the lead screw (11). A driving cable of the flexible arm module (2) extends into the driving module (1) and is connected to the lead screw nut (12) so that the movement of the lead screw nut (12) will drive the driving cable to move together. The described platform is driven by a servo motor so as to ensure the accuracy of movement and ensure the precise displacement of the lead screw nut so that the stretching and relaxation of the driving cable following the lead screw nut is precisely controlled.
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
37.
KINEMATICS TEST SYSTEM FOR ROPE-DRIVEN FLEXIBLE ROBOT
A kinematics test system for a rope-driven flexible robot, comprising a flexible arm module (200), wherein the flexible arm module (200) comprises several flexible arms (220), a joint (230) located between every two adjacent flexible arms (220), and a driving rope (210) passing through the several flexible arms (220); the joint (230) is connected to an angle measurement unit, and the angle measurement unit can detect the rotation angle of the joint (230); a moving module (300), the moving module (300) being able to drive the flexible arm module (200) to move; and a test module (100), wherein the test module (100) comprises a counterweight block (150) and a displacement measurement unit (120), the counterweight block (150) is connected to the driving rope (210), and the displacement measurement unit (120) can measure the displacement of the driving rope (210). According to the kinematics test system for a rope-driven flexible robot, the relationship between the rotation angle of the joint (230) and the displacement variation of the driving rope (210) can be tested, and thus measured data are used for correcting actual movement data of a flexible robot.
B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
A high energy consumption damping wall, relating to the technical field of vibration reduction for high-rise structures. The high energy consumption damping wall comprises an outer damping plate frame, damping plates, and a T-shaped structure. The outer damping plate frame is fixed to a lower floor slab. Multiple damping plates are provided in the outer damping plate frame, and working chambers formed in the outer damping plate frame and between adjacent damping plates are all filled with shear thickening fluid (STF). The horizontal part of the T-shaped structure is fixedly connected to an adjacent upper floor structure, the lower vertical part thereof penetrates into the outer damping plate frame and the damping plates, the end thereof is connected to the bottom edges of the damping plates, and both sides thereof are respectively connected to the damping plates and the outer damping plate frame. A plurality of scissor mechanisms are provided inside the damping plates, one end of each scissor mechanism is fixedly connected to the T-shaped structure, the other end is directionally and hingedly connected to a damping steel plate, and the scissor mechanisms are all arranged in parallel with the plate surfaces of the damping plates. When a high-rise structure shakes, the power of adjacent floors is amplified by means of the scissor mechanisms, and the damping plates squeeze the STF at a relatively high rate to excite the shear thickening properties of the STF, thereby producing high damping force instantaneously and consuming external input energy.
E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
39.
ENVIRONMENT ADAPTIVE NEURAL NETWORK NOISE REDUCTION METHOD AND SYSTEM FOR DIGITAL HEARING AIDS, AND STORAGE MEDIUM
Disclosed is an environment adaptive neural network noise reduction method for digital hearing aids. The method comprises the successive execution of the following steps: a preprocessing step, including receiving voice signal with noise and transmitting the voice signal with noise to an acoustic scene recognition module after sampling and framing; a scene recognition step, including recognizing the current acoustic scene by using the acoustic scene recognition module, and independently selecting and sending different neural network modules in a neural network noise reduction module by the acoustic scene recognition module; and a neural network noise reduction step. The beneficial effects of the method are: 1, ensuring the timeliness of voice processing, and having less computation burden while only performing forward spread of neural network; 2, being able to recognize the current acoustic scene and independently selecting different neural network modules to perform targeted noise reduction in different scenes, and guaranteeing better voice quality and voice intelligibility; and 3, being able to effectively inhibiting the instant noise.
G10L 21/0216 - Noise filtering characterised by the method used for estimating noise
G10L 25/24 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being the cepstrum
G10L 25/30 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique using neural networks
40.
VOICE SEPARATION METHOD AND SYSTEM BASED ON SUPER-GAUSSIAN PRIOR VOICE MODULE AND DEEP LEARNING, AND STORAGE MEDIUM
Disclosed are a voice separation method and system based on super-Gaussian prior voice module and deep learning, and a storage medium. The voice separation method comprises: using an estimated value of pure voice power spectral density and an estimated value of noise power spectral density to determine a prior signal-to-noise ratio in the gain function; introducing the prior signal-to-noise ratio into the gain function to obtain a value of the gain function; multiplying the value of the gain function to the noisy voice spectrum to obtain an estimated value of pure voice magnitude spectra; and using the overlap-add technology to obtain restored voice signal. The method has the beneficial effect of combining traditional statistic model with the deep learning technology, which can not only effectively inhibit non-smooth noise signal, but also solve the problem of weak generalization ability due to great reliance on training data in the deep learning technology. The described combination can realize excellent performance of voice signal enhancement in various noise environments and various signal-to-noise ratio situations.
G10L 21/0216 - Noise filtering characterised by the method used for estimating noise
G10L 21/0264 - Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
G10L 21/0308 - Voice signal separating characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
G10L 25/30 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique using neural networks
41.
CONTINUOUS NOISE TRACKING-BASED TARGET SPEECH SIGNAL ENHANCEMENT METHOD AND SYSTEM, AND STORAGE MEDIUM
A continuous noise tracking-based target speech signal enhancement method and system, and a storage medium; the method comprises: step 1: receiving a speech signal that has noise, performing framing windowing processing on the speech signal that has noise, and using short-time Fourier transform to obtain a time-frequency domain relationship; step 2: estimating a noise power spectrum; step 3: estimating a speech power spectrum; step 4: estimating a speech signal by means of a speech estimator; and step 5: performing inverse Fourier transform, windowing and using an overlap adding technique to achieve speech recovery. The present method effectively separates the target speech signal, and reduces the residual amount of noise in the speech signal so that the quality of the target signal is improved. The present invention plays an important role in applications such as automatic speech recognition, speaker recognition, human-machine dialogue interfaces, and hearing aids.
Provided is a neural network squeak suppression method for a digital hearing aid. The method comprises the following steps executed successively: a pre-processing step: receiving a speech signal, and sampling and framing the speech signal and then transmitting same to a squeak detection module; a squeak detection step: the squeak detection module receiving a speech frame and the squeak detection module detecting whether the speech frame is a squeak frame, and if not, the speech signal directly passing and being continuously subjected to subsequent processing, and if so, the speech frame entering a buffering suppression module; and a buffering suppression step: the buffering suppression module suppressing the squeak frame. The beneficial effects of the present invention lie in: 1. a squeak frame can be tracked and suppressed in real time, such that the suppression effect is better, and the complexity of algorithm operation is lower; 2. the accuracy of squeak detection by a neural network is higher with less normal speech loss; and 3. a buffering suppression policy can prevent a squeak from recurring within a short time, thereby reducing the probability of recurrence of the squeak.
An electroencephalogram signal-based auditory attention state arousal level recognition method and apparatus, and a storage medium. Said method comprises: acquiring required electroencephalogram signals; on the basis of the acquired electroencephalogram signals and a first-level main component filter constructed in the training process, performing first-level feature extraction based on ensemble empirical mode decomposition and main component filtering; on the basis of a first-level feature extraction signal and a second-level main component filter constructed in the training process, performing second-level feature extraction based on ensemble empirical mode decomposition and main component filtering; on the basis of a second-level feature extraction signal, performing variance statistics-based feature vector calculation on the extraction feature signals; and on the basis of a feature vector calculation result and a machine learning classifier constructed in the training process, extracting an electroencephalogram signal-based auditory attention state arousal level in a test process. The invention realizes arousal level recognition of an auditory attention state, and facilitates the improvement of the accuracy and effectiveness of the auditory attention state arousal level recognition.
The present invention relates to the technical field of the manufacturing of medical devices, and in particular to an information-invisible medical wristband and manufacturing method therefor. A conventional developing dye or ink in the prior art can store information but is unable to achieve an invisible effect. The present invention comprises: preparing polystyrene (PS) microspheres by a microemulsion method, dissolving the PS particles in a methylbenzene solution, and adding a fluorescent dye to the mixture to form a fluorescent solution; then adding an SDS solution and mixing same with the fluorescent solution to obtain a system to be ultrasonically emulsified; and then ultrasonically emulsifying said system and totally volatilizing the methylbenzene to obtain a product which can be directly used as an invisible ink. The ink is written on a non-fluorescent paper in the form of a QR code by a coating method, and is plastically packaged to a wristband of a patient. Patient information can be successfully scanned under ultraviolet light, thereby achieving the purpose of privacy protection.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Yong
Tang, Linlin
Zhao, Dongning
He, Rongyu
Liang, Changyin
Zeng, Qinghao
Abstract
The invention provides a cloud computing task allocation method and device, an apparatus, and a storage medium. The method comprises: when a cloud task allocation request is received, constructing a cloud task allocation model according to a to-be-allocated cloud computing task in the cloud task allocation request; optimizing cloud computing task allocation for a first preset number of times through the cloud task allocation model and an ant colony algorithm to generate the first preset number of intermediate allocation paths; evolving the intermediate allocation paths for a second preset number of times through a genetic algorithm to generate an optimum allocation path of the cloud computing task; and allocating the cloud computing task to a virtual machine in a cloud environment according to the optimum allocation path, so that the performance of the cloud computing task allocation is effectively improved.
Disclosed in the present invention are a medical image processing method, a system, a device, and a storage medium. In one aspect, a plurality of first abnormality probabilities are acquired by means of a lesion image, and in another aspect, a plurality of second abnormality probabilities are acquired by means of a medical image and the lesion image. Then, on the basis of the plurality of first abnormality probabilities, the plurality of second abnormality probabilities, and different weight coefficients, and according to different image abnormality degrees, a final probability that the medical image belongs to the different image abnormality degrees is acquired, and the image abnormality degree having the greatest final probability is set as the image abnormality degree of the medical image, thus achieving analysis of the abnormality degree of the medical image, and overcoming the problems in the prior art of reliance on the naked eye and low efficiency in pathological image processing and analysis.
A rope-driven flexible claw comprises a drive apparatus (200), a transmission apparatus (100) connected to the drive apparatus (200), and a flexible claw (300) connected to the transmission apparatus (100), the material of the flexible claw (300) being a soft body material. The robot comprises the rope-driven flexible claw (300). The present rope-driven flexible claw (300) and robot have strong adaptability and can adapt to stable gripping of irregular objects.
A preparation method for a one-stop supercapacitor, comprising the following steps: preparing a solution: uniformly mixing phosphoric acid, sodium chloride, and deionized water at a weight ratio of 1:1:5-6 to obtain the solution; preparing an electrolyte: uniformly mixing flour and the solution at a weight ratio of 4:3-3.5 to obtain the electrolyte; preparing an electrode: uniformly mixing the solution, activated carbon, and the flour at a weight ratio of 5:2.5-3:1-1.5 to obtain the electrode; and preparing a supercapacitor: obtaining the supercapacitor by sandwiching the electrolyte between two of the electrodes. The supercapacitor has one-stop multifunctional characteristics such as self-repairing, re-stretching after self-repairing, and biodegradability.
The present invention relates to the technical field of cells, and discloses a method for preparing a direct ethanol fuel cell. The method comprises the following steps: synthesis of a catalyst: mixing a silicon dioxide powder, sucrose and trithiocyanuric acid, preheating same to obtain a mixed powder, then adding Teflon thereto and mixing same with the mixed powder, and heating the mixture of the mixed powder and the Teflon to obtain an N,S-codoped carbon catalyst; synthesis of an electrolyte: using an initiator to subject sodium acrylate to a polymerization reaction, and soaking a hydrogel product obtained by the polymerization reaction in a strong alkaline solution; preparation of a cathode: coating the N,S-codoped carbon catalyst onto a collector electrode to obtain the cathode; preparation of an anode: coating a Pt-Ru/C catalyst onto a collector electrode to obtain the anode; and preparation of a cell: sandwiching the soaked hydrogel between the cathode and the anode to obtain the cell. The cell of the technical solution has a very high flexibility, a high power density, and a function of using while dropping.
The present invention relates to the technical field of robots, and discloses a multi-fingered flexible manipulator based on a scroll spring. The multi-fingered flexible manipulator based on a scroll spring of the present invention comprises: a drive device comprising an electric motor, a transmission shaft fixedly connected to an output end of the electric motor, and a capstan rotatably sheathed on the transmission shaft, with the capstan being provided with a scroll spring therein, the center of the scroll spring being fixedly arranged on the transmission shaft, and an end of the scroll spring being fixedly connected to the capstan; and a flexible finger comprising a flexible operation column and a rope for driving the flexible operation column to bend, with one end of the rope being fixedly arranged at an end of the flexible operation column, and the other end thereof being fixedly arranged at the capstan. The multi-fingered flexible manipulator based on a scroll spring of the present invention is a continuum robot structure, has a good self-adaptation capacity and can realize the grabbing of an irregularly-shaped object.
A rope driving device, comprising a main body frame (100), a driving device fixed on the main body frame (100), a screw rod (472) and a winding roll (484) that are connected to and rotating synchronously with the driving device, a rope guide slider (500) threadedly connected to the screw rod (472), and a control rope (600) with one end fixed to the winding roll (484). The winding roll (484) is provided with a thread groove for winding the control rope (600), the rope guide slider (500) is provided with a first rope guide pulley (550), and the first rope guide pulley (550) tensions the control rope (600) and enables the control rope (600) to be wound into the thread groove directionally. A parallel rope-driven robot, comprising a robot body and a rope driving device fixed on the robot body. The rope driving device and the parallel rope-driven robot can prevent stacking and squeezing between the control ropes, so as to ensure the control accuracy of the control ropes.
A self-adaptive flexible gripper based on torsion springs, and a robot. The flexible gripper comprises a driving device (100), a transmission device (200), and flexible fingers (300); the transmission device (200) comprises a first bevel gear (250), second bevel gears (260), torsion springs (270), and winch shafts (240); the first bevel gear (250) is connected to the driving device (100); the second bevel gears (260) engage with the first bevel gear (250), and the second bevel gears (260) are provided and sleeved on bevel gear shafts (261); two ends of the torsion springs (270) are fixedly connected to the bevel gear shafts (261) and the winch shafts (240), respectively; the flexible fingers (300) are provided with driving ropes (320); and the driving ropes (320) are wound around the winch shafts (240), and the free ends of the driving ropes (320) are fixedly connected to the end portions of the flexible fingers (300).
An underwater wireless communication transmission device, method, and apparatus. The wireless communication transmission device comprises: communication transmission end coil groups comprising a first group of coils and a second group of coils, wherein the first group of coils comprises a first transmission coil, the second group of coils comprises a second transmission coil, and an axis of the first transmission coil is perpendicular to an axis of the second transmission coil; a conversion module for proving an alternating current signal for each coil of the communication transmission end coil groups; and a phase control module for adjusting, according to a bit sequence of data to be transmitted, a phase difference between input electrical signals of the first group of coils and the second group of coils during a communication stage, such that different phase differences respectively correspond to bits 0 and 1 of the data. The underwater wireless communication transmission device of the present application is simple, light, consumes little power and reliably communicates data.
G06K 7/08 - Methods or arrangements for sensing record carriers by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
54.
UNDERWATER CHARGING AND COMMUNICATION INTEGRATION APPARATUS, AND UNDERWATER WIRELESS CHARGING APPARATUS
An underwater charging and communication integration apparatus, and an underwater wireless charging apparatus. The underwater charging and communication integration apparatus comprises a charging and transmitting end coil group; the charging and transmitting end coil group comprises a first coil, a second coil, and a third coil that are orthogonal to each other; the three coils have a common center point and are integrally formed; a detection module is used for separately detecting the electrical parameters of the first coil, the second coil, and the third coil, and outputting the electrical parameters; a posture control module is used for calibrating the posture of the charging and transmitting end coil group, so that one coil of the first coil, the second coil, and the third coil is adjusted to the posture at which maximum charging power may be provided, the coil is used as a charging coil that emits energy, and outputs electric energy, and the other two coils are used as communication coils that receive communication data. The present application has the advantage of simultaneously performing charging and communication in a coil group.
PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Xu, Yong
Liu, Hong
Abstract
A breast lump detection and classification system and a computer-readable storage medium. The pixels of a breast image are classified directly into three types, i.e., common pixels, benign lump pixels, and malignant lump pixels, thereby quickly and accurately performing lump detection and classification on the breast image, and resolving the technical problem in the prior art of low accuracy and low efficiency caused by two steps, i.e., lump detection and lump classification.
An enhanced neural network-based image restoration method, an image restoration system, and a corresponding storage medium. The method comprises the following steps: S1, converting an image to be restored into multiple low-resolution images under different zoom factors; S2, respectively inputting the multiple low-resolution images into a pretrained first deep convolutional neural network, thus producing corresponding multiple high-resolution images under the different zoom factors; S3, respectively converting the multiple high-resolution images of S2 into images identical in size to the image to be restored, and fusing these images to produce a restored image. The method prevents the regression of the network during a training process and increases the rate of convergence.
A lightweight flexible robot, which comprises a control box (1), a flexible mechanical arm (2) and a plurality of drive ropes (3), each drive rope (3) is uniformly distributed along the direction of a circumference, extends in the axial direction of the circumference, and then is fixedly connected with the flexible mechanical arm (2), and is driven by the control box (1) to draw the flexible mechanical arm (2) to move, the control box (1) comprises a control panel, and the control panel is provided with a plurality of steps having different heights corresponding to each drive rope along the axial direction, and each step is provided with a mounting structure, wherein, the height of each step is proportional to the height of each drive rope; in the diameter direction parallel to the step along the circumference, the displacement of each mounting structure relative to the step is proportional to the projection distance of the connection line from the circle center of each drive rope to the circle center of the circumference on the step. The lightweight flexible robot can realize compact placement of various components in the control box, which is beneficial to reduce the package size of the entire control box, and enhance the applicable scenes of the robot.
sss, which training sample is closest to y; and S005, outputting a class tag or output a retrieval result after the closest training sample is obtained. The method of the present invention can combine dictionaries for images having multiple resolutions for learning and effectively improve the robustness and adaptability of a dictionary learning algorithm, and the algorithm is simple and easy to realize.
A cable-driven flexible joint and a cable-driven flexible mechanical arm. The cable-driven flexible joint comprises a universal joint (1), a first rotary connection member (2), and a first encoder (3). The first rotary connection member (2) is rotatably provided on the universal joint (1). The first encoder (3) comprises a first rotor (30) and a first stator (31). The first rotor (30) is fixedly connected to the first rotary connection member (2), and the first stator (31) is fixedly connected to the universal joint (1). The cable-driven flexible mechanical arm comprises the cable-driven flexible joints. A rotary member (8) is provided between adjacent two cable-driven flexible joints. Two ends of the rotary member (8) are respectively fixedly connected to the first rotary connection members (2) or second rotary connection members (4) of the two cable-driven flexible joints. The cable-driven flexible joint and the cable-driven flexible mechanical arm accurately measures a rotation angle between joints.
A distributed continuous vibration monitoring system, comprising a plurality of sub-systems respectively disposed at various measurement points of an ultra-high-rise building. Each of the sub-system comprise: a terminal, comprising a memory and a processor, and configured to issue a control instruction according to a preset sampling frequency and a preset sampling duration; an acquisition unit, disposed at one of the measurement points of the ultra-high-rise building, and configured to acquire vibration data at the corresponding measurement point according to the control instruction and output the vibration data to the terminal; and a receiving end, configured to receive a satellite pulse per second signal to obtain satellite standard time. The memory stores a computer program, and the processor executes the computer program to eliminate a system time error in the vibration data received by the terminal. The distributed continuous vibration monitoring system provided by the present application has a distributed structure which is easy to implement and excellent data acquisition synchronization, thereby meeting the continuous vibration monitoring of ultra-high-rise buildings.
A continuous monitoring-based method for identifying a 1p signal of a wind turbine, comprising: acquiring the structural dynamics response of a wind turbine (A); decomposing the structural dynamics response of the wind turbine into several intrinsic mode functions (B); transforming each intrinsic mode function so as to obtain the instantaneous frequency corresponding to said function, and calculating the instantaneous frequency average for each intrinsic mode function (C); treating intrinsic mode functions of which the instantaneous frequency average is in a low frequency segment as valid intrinsic mode functions, and using the sum of said valid intrinsic mode functions as the target intrinsic mode function, said low frequency segment being a frequency range below 1Hz (D); identifying the frequency corresponding to the target intrinsic mode function and establishing a stability graph, and extracting the 1p frequency on the basis of the stability graph (E). Also disclosed is a continuous monitoring-based device for identifying a 1p signal of a wind turbine, comprising an acquisition module (110), a decomposition module (120), a transformation module (130), a screening module (140), and an identification module (150). Also disclosed are a continuous monitoring-based terminal and computer readable storage medium for identifying a 1p signal of a wind turbine. The present5 invention can effectively identify a 1p signal and extract the 1p frequency, thereby providing effective and reliable automated means for wind turbine structure monitoring.
A second-order metabolic mass spectrometry compound detection method, a storage medium, and a server, comprising: using an existing second-order metabolic mass spectrometry database as a basis, performing an operation of constructing a visual network on second-order mass spectrometry data of each compound; when inputting a multi-compound spectrum, using the range of the mass-to-charge ratio (m/z) of each compound in a database as a respective search range on the multi-compound spectrum, then performing an operation of constructing a visual network on a mass spectrum within said range; determining maximum sub-graph isomorphism for the visual network on the compound spectrum within said search search range and a visual network of a single compound spectrum in the database, and according to the foregoing, determining a similarity score, and determining whether said compounds are present.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
G06F 17/30 - Information retrieval; Database structures therefor
A noise monitoring method and system based on sound source identification. The method comprises the following steps: S1. collecting environmental sound by means of a sound collection device; S2. calculating data such as acoustics and psychoacoustics of the collected environmental sound by using noise analysis software and a computer control front end, and sending the data to a sound source analysis module; S3. determining, on the basis of a sound source neural network model and a noise level classification module in the sound source analysis module, the noise levels of different noise sources and calculating a noise correction value according to the noise level results; S4. adding the noise correction value and an environmental sound level measurement value to finally obtain a noise sound level; and S5. sending the noise sound level back to a terminal control system. Not only the noise sound level is reflected, but also subjective feeling differences caused by different sound sources are also taken into consideration, so that the actual status of noise is truly reflected and the problem of inaccurate noise monitoring is overcome.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Yong
Tang, Linlin
Zhao, Dongning
He, Rongyu
Liang, Changyin
Zeng, Qinghao
Abstract
The present invention is applicable to the technical field of computers, and provides a cloud computing task allocation method and apparatus, a device, and a storage medium. The method comprises: upon receipt of a cloud task allocation request, constructing, according to cloud computing tasks to be allocated in the cloud task allocation request, a cloud task allocation model; performing first preset number of optimizations on the allocation of cloud computing tasks by means of the cloud task allocation model and an ant colony optimization algorithm to generate first preset number of intermediate allocation paths; performing second preset number of optimizations on the intermediate allocation paths by means of a genetic algorithm to generate an optimal allocation path of the cloud computing task; and allocating the cloud computing tasks to a virtual machine in cloud environment according to the optimal allocation path. Accordingly, the cloud computing task allocation performance is effectively improved by means of a hybrid swarm intelligence algorithm combining the ant colony optimization and genetic algorithms, short response time and completion time of the cloud computing task are guaranteed, and thus the service quality and user experience of a cloud computing platform are improved.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Chen, Baiyang
Bu, Yinan
Abstract
A method for detecting hydrogen peroxide in a water sample by means of ion chromatography precision measurement, without needing to add additional chemical substances to the water sample, having an easy operation and strong anti-interference performance. First converting hydrogen peroxide in an alkaline eluent to an ionic state; using an ion chromatography column to separate the hydrogen peroxide ions from other ions and neutral substances; converting the hydrogen peroxide in the ionic state into a molecular state by means of a suppressor; and finally using an ultraviolet detector to implement quantitative detection.
G01N 30/96 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography using ion-exchange
HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN GRADUATE SCHOOL (China)
Inventor
Chen, Huaying
Chen, Chang
Zhu, Yonggang
Yu, Zhihang
Abstract
The present invention relates to the field of micro-fluidic chips. Disclosed are a fluid shear stress generation device and a fluid shear stress generation method. The device comprises a device body; a main flow passage and at least two branch flow passages are provided on the device body; the two ends of the main flow passage are provided with a fluid inlet and a main flow passage fluid outlet; one end of each branch flow passage is communicated with the main flow passage, and the other end is provided with a branch flow passage fluid outlet; valves capable of regulating cross sectional areas in the branch flow passages to allow fluid to pass through are provided in the branch flow passages. According to the present invention, by means of the cooperation of the main flow passage, the branch flow passages, and the valves, dynamic changes of the magnitudes and ratio of fluid shear stresses can be achieved without changing the flow velocity of input fluid and the structure of the device. In addition, the present invention can greatly expand the range of the ratio of the fluid shear stresses in first and final branch flow passages; moreover, the ratio at any point in the range can be covered. The device is simple in structure, and easy to popularize and implement.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Yu, Jie
Zeng, Jie
Abstract
Provided are a method for preparing a three-dimensional graphene fiber by means of thermal chemical vapor deposition, and the use thereof. In this fiber, a graphene sheet is fixed on the fiber, and the thickness, density and growth rate of the sheet can be regulated and controlled by changing the growth atmosphere and temperature, so that the problem of graphene agglomeration is solved. Edge layers of the graphene sheet may be a monolayer, the sheets are in contact with each other to form a good three-dimensional conductive network, and the conductivity reaches up to 1.2×105S/m-1. The three-dimensional graphene fiber material has a super-hydrophobic function, and the contact angle reaches 165°; and at the same time, same has a good adsorbing function with regard to an organic matter, and the contact angle is close to 0°. Moreover, the three-dimensional graphene fiber has an excellent electromagnetic shielding function, and the specific electromagnetic shielding efficiency of a self-supporting three-dimensional graphene fiber material with thickness of 3 μm can be up to 60932 dB/cm2/g. The three-dimensional graphene fiber material, due to the unique structure and property, has application potential in many aspects in the fields of functional composite materials, water treatment, electromagnetic shielding, sensors and energy sources.
D01F 11/14 - Chemical after-treatment of man-made filaments or the like during manufacture of carbon with organic compounds, e.g. macromolecular compounds
D01F 11/12 - Chemical after-treatment of man-made filaments or the like during manufacture of carbon with inorganic substances
D01F 11/16 - Chemical after-treatment of man-made filaments or the like during manufacture of carbon by physicochemical methods
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
D01F 9/21 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
D01F 9/24 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
68.
Method, apparatus, device and storage medium for predicting protein binding site
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Yong
He, Wei
Xu, Yong
Zhao, Dongning
Abstract
The invention provides a method, apparatus, device and storage medium for predicting a protein binding site. The method comprises the steps of: receiving a protein sequence to be predicted, dividing the protein sequence by using a preset sliding window and sliding step to obtain a plurality of amino acid sub-sequences, building word vectors for the protein sequence according to the amino acid sub-sequences, extracting document features from word elements, building document feature vectors for the protein sequence according to the extracted document features, extracting protein chain biological features from the amino acid sub-sequences, building biological feature vectors for the protein sequence according to the extracted biological features, classifying the amino acid sub-sequences expressed with the document feature vectors and the biological feature vectors by using a preset amino acid residue classification model to obtain amino acid residue types for the protein sequence.
G16B 40/00 - ICT specially adapted for biostatisticsICT specially adapted for bioinformatics-related machine learning or data mining, e.g. knowledge discovery or pattern finding
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Wang, Hongpeng
Zhang, Yang
You, Lei
He, Huamen
Huang, Xingsen
Abstract
Provided in the present invention is a method for sensing image privacy on the basis of deep learning, comprising the following steps: S1, constructing a privacy classification data set labeled with classifications, and training a privacy sensing network by means of a transfer learning method; S2, completing identification of a private image using a deep convolutional neural network oriented toward privacy sensing; and S3, extracting an attention distribution graph according to deep convolutional features of the neural network, and locating an attention focusing region, so as to complete sensing of a private region of an image. The present invention completes end-to-end training and testing on the basis of a deep neural network, thereby achieving accurate classification of a private image and locating of a private region in the image and facilitating selective protection of private information in an image.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Chunkai
Abstract
A method for mining a multivariate time series association rule based on Eclat, comprising: (1) generating a perpendicular dataset; (2) generating a MINHASH matrix, wherein the MINHASH matrix needs a designated parameter k; (3) using the MINHASH matrix to estimate a candidate item set in an original dataset; (4) according to the minimum support, pruning the candidate item set to obtain a frequent item set 1; (5) combining two Hash frequent item sets 1 and generating a new frequent item set 2; and (6) repeating step 5 until combination cannot be carried out, and ending an algorithm. The method markedly increases the mining speed of an association rule, and reaches the goal of acquiring a time series data analysis result in time. Although mining precision is sacrificed, mining efficiency can be greatly improved, and machine memory can be saved.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Chunkai
Abstract
A method for classifying high-dimensional imbalanced data based on SVM, comprising two parts. The first part is feature selection, involving: using an SVM-BRFE algorithm to resample a boundary to look for an optimal feature weight so as to carry out feature importance measurement, feature selection and training set update, and repeating the process. Finally, the feature most conductive to enhancing an F1 value is retained, and other features are removed, so that a subsequent training process is carried out in a situation with feature redundancy and irrelevant feature combination as less as possible and dimension as low as possible, thereby reducing the influence of a high dimension problem on an imbalance problem and the constraint over an SMOTE oversampling algorithm. The second part is data sampling, involving: using an improved SMOTE algorithm, i.e. a PBKS algorithm; considering to use minority classes in boundaries automatically partitioned by SVM as distance constraints in DHijij of a Hilbert space so as to replace an original constraint; and using a grid method to look for the approximate preimage. The method can stably and effectively complete the task of classifying high-dimensional unbalanced data, and can achieve a considerable effect.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Yong
He, Wei
Xu, Yong
Zhao, Dongning
Abstract
Disclosed are a method, apparatus, device and storage medium for predicting protein binding sites, wherein same are suitable for the biology information technology field. The method comprises: receiving a protein sequence to be predicted, and using a preset sliding window and sliding step size to divide the protein sequence, so as to obtain a plurality of amino acid subsequences (S101); constructing a term vector of the protein sequence according to the amino acid subsequences, extracting the document feature from a term element, and constructing a document feature vector of the protein sequence according to the extracted document feature (S102); extracting the biological feature of protein chains from the amino acid subsequences, and constructing a biological feature vector of the protein sequence according to the extracted biological feature (S103); and using a preset amino acid residue classification model to classify amino acid subsequences represented by the document feature vector and biological feature vector in order to obtain the amino acid residue type of the protein sequence (S104), and thereby improving the prediction accuracy and universality of protein binding sites.
G06F 19/18 - for functional genomics or proteomics, e.g. genotype-phenotype associations, linkage disequilibrium, population genetics, binding site identification, mutagenesis, genotyping or genome annotation, protein-protein interactions or protein-nucleic acid interactions
73.
METHOD OF USING MINIMIZED-LOSS LEARNING TO CLASSIFY IMBALANCED SAMPLES
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Chunkai
Abstract
A method of using minimized-loss learning to classify imbalanced samples. A network in a current state is used to perform classification on all of training sets, and then a loss is obtained and optimized to achieve a subsequent improved state. The invention transforms an evaluation process in training, and does not use a specific classification result of a neural network in the current state, and instead optimizes an expected value of the loss obtained by using a current output probability. In this way, a direct relationship among an output, a parameter, and a target is established, and the expected value is optimized to increase the probability that the target has a greater value. The method uses evaluation criteria of classification of imbalanced samples to construct a target function applied to a training set and related to an overall F1 value, and applies an F1 value maximizing algorithm to an artificial neural network (ANN) model.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Chunkai
Abstract
Disclosed are a system and method based on secure multi-party time sequence abnormality detection, the system comprising a serving end and a user end, wherein the serving end is provided with at least two servers: a server C and a server S; a time sequence forming a complete data set is stored in the serving end in a distributed manner; the server C is a server providing a service for the user end; multi-party time sequence sharing is carried out between the server S and the server C based on a BCP encryption system; the server S is semi-honest and has a master key mk for decryption; disturbance is added to all operations in which the server S participates so as to prevent the server S from acquiring relevant information about relevant users; the server C and the server S initialize the BCP encryption system; the server C encrypts the time sequence stored therein and provides the encrypted time sequence to the server S; and the server S carries out time sequence abnormality detection under a security protocol. The system and method based on secure multi-party time sequence abnormality detection are of great practical value.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Chen, Baiyang
Bu, Yinan
Abstract
Disclosed is a pre-treatment method for measuring total halogenated organic compounds in water. Firstly, most of the inorganic halogen ions are removed from a water sample by means of adding silver ions to the water sample, such that the silver ions are reacted with the inorganic halogen ions to form a precipitate, wherein same is then filtered out; secondly, the residual silver ions in the water sample are removed; and finally, the water sample is photolyzed, converting the organic halogenated compounds in the water sample into inorganic halogen ions utilizing an ultraviolet lamp (2). Afterwards, the content of the inorganic halogen ions in the water sample before the photolysis is subtracted from the content of the inorganic halogen ions in the water sample after the photolysis, so as to obtain the content of halogen contained in the organic halogenated compounds in the water sample in an initial state. The pretreatment method avoids processes requiring the use of expensive activated carbon and a pyrolysis furnace in the existing method on the basis that the accuracy meets test requirements, and this can significantly reduce the test cost.
Provided are a reading environment sound-effect enhancement system and method based on image processing and semantic analysis, said system comprising: an image acquisition device (1) and a processing device (2); said processing device (2) comprises a computation unit (22) used for controlling a transmitting unit (21), storage unit (23), and audio unit (24) to perform transmission, storage, and audio synthesis, respectively; said computation unit (22) comprises an image extraction module, a text recognition module, a semantic analysis module, and an audio synthesis module; said method comprises steps of image extraction, text recognition, semantic analysis, audio synthesis, and sound-effect enhancement. Using the described solution, scene music and mood music are selected according to the specific content currently being read, and appropriate background music is generated by means of audio synthesis and enhancement technology, thus providing, to a large extent, a realistic and immersive reading experience for the reader.
ARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Wang, Xuan
Jiang, Lin
Li, Ye
Yao, Lin
Liu, Zechao
Jin, Yabin
Liang, Yudong
Liu, Meng
Qi, Shuhan
Abstract
The present invention belongs to the field of data mining, and discloses a K-means clustering method and system having privacy protection. The method of the present invention comprises the following steps: data owners A and B respectively encrypting data belonging thereto and randomly selected centroid points, and uploading the same to a server; the server calculating Euclidean distances between data points and the centroid points in ciphertext data by means of a secure multiplication protocol and a secure distance calculation protocol, and classifying the data points; the server and the data owners A and B collectively re-calculating new centroid points in the ciphertext data by means of a secure circuit protocol; the data owners A and B determining distances between the new centroid points and the original centroid points by means of a secure comparison protocol; if the distances are less than a threshold, finishing the classification and the data owners A and B requesting the server to send the classified data respectively to the data owners A and B; otherwise, re-uploading new centroid points and performing a subsequent round of iteration. The present invention can guarantee the security of data privacy and the accuracy of data mining results at the same time, and data storage outsourcing and data calculation outsourcing are both supported, thus significantly increasing execution efficiency while also guaranteeing accuracy at the same time; further, secure calculations in which a maximum of one party being a malicious party among three participating parties are supported.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Wang, Hongpeng
You, Lei
Mu, Lei
He, Huamen
Ke, Yu
Abstract
The present invention provides a parking detection method on the basis of monitoring video, with strong robustness. The method comprises: performing static target detection on the basis of a foreground history pixel and image similarity. The method mainly comprises steps of: extracting a foreground moving target through Gaussian Mixed Model; obtaining a suspicious stationary pixel area through a suspicious static pixel matrix; and calculating the image similarity. In a vehicle identification stage, an Haar classifier is improved, which avoids training process stagnation during the training of a cascaded strong classifier. It ensures that the stagnation phenomenon is avoided during the training process such that a stronger robustness in the training of the cascaded strong classifier is achieved. In a vehicle detection process, only a static target area and a neighboring area thereof detected through the static target detection are placed in the Haar classifier for detection, instead of putting the entire image into the Haar classifier. Thus, the amount of computation is greatly reducing, and the real-time performance of the algorithm is improved. In addition, an occlusion detection based on the Gaussian Mixture Model is also used to solve the problem of temporary occlusion, so as to reduce the missing rate of the algorithm.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Jiang, Lin
Wang, Xuan
Zhang, Chunkai
Huang, Jialin
Liu, Zezhao
Jin, Yabin
Yao, Lin
Fang, Junbin
Abstract
A database query method and system having an access control function, the system comprising: a key generating center, used for generating a main key, a query key and a key; a data uploader, used for establishing an attribute index for each record, encrypting the record and the attribute index to obtain a record ciphertext and an index ciphertext, then encrypting the query key and sending the encrypted query key to a data query user; the data query user, which carries out decryption using the key and the encrypted query key so as to obtain the query key, then generating a predicate trap door by means of the query key and a query condition, sending the predicate trap door to a server, and decrypting the record ciphertext using the key so as to obtain a query result; and the server, used for querying data of a database, and returning record ciphertext data satisfying a condition to the data query user. Said system may control authority of a data query user accessing the database, and may also ensure the confidentiality of the data and the query condition.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Liu, Jian
Chen, Rui
Mei, Zhen
Abstract
A device and method for measuring hydraulic characteristics of soil under uneven soil subsidence. The measurement device comprises a measurement device body. The measurement device body comprises a balance (1), a subsidence base (2), an air bag (3), a soil test sample (4), a soil sample wall (5), a permeable stone (6), a negative pore pressure meter (8), a weight (9), a displacement meter (10), a thermometer (11), a hygrometer (12), an air inlet (13), an air outlet (14), and a high-resolution camera (7). The base (2) is a hollow stepped cylinder. The inflatable/deflatable air bag (3) is placed in the hollow portion of the base (2). The soil sample wall (5) is transparent organic glass. The negative pore pressure meter (8) is inserted into the soil test sample (4). The permeable stone (6) is above the soil test sample, and the weight (9) is placed above the permeable stone (6). The beneficial effects are effectively measuring the extension of the opening and depth of cracks due to uneven subsidence, as well as hydraulic characteristics of soil under uneven subsidence. The measurement method is simple and features short time consumption and low costs.
G01N 5/04 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
81.
MOVABLE BALLAST LEVELING CONTROL DEVICE FOR USE IN FLOATING WIND TURBINE
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Li, Chao
Xiao, Yiqing
Zhou, Shengtao
Han, Xishuang
Liu, Haitao
Wang, Xiaolu
Abstract
A movable ballast leveling control device for use in a floating wind turbine, comprising: a movable ballast (2), a sliding rail (1), a limiting support seat (3), a leveling control server and so on; the movable ballast (2) is provided with power, brake and locking systems, and may receive signals in real time in order to slide, brake and lock on the sliding rail (1). The sliding rail (1) is configured according to the basic layout and available space of a floating wind turbine, and is disposed with rails, hinges, lead screws and so on, which are required for the ballast to move. The limiting support seat (3) is provided at an end portion of the sliding rail (1), which is used for preventing the movable ballast (2) from sliding out of the rail, and for placing auxiliary equipment for the power of the ballast. The leveling control server may be installed in a foundation deck or a wind turbine tower drum, monitor data according to the speed and direction of wind, wave, and flow, and send real-time active control commands to a movable ballast device, thus suppressing the tilt and motion responses of a floating wind turbine.
F03D 13/25 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors specially adapted for offshore installation
B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
B63B 39/02 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Tseng, Kuokun
Ip, Waihung
Abstract
Provided are a method and device for encrypting an electronic file. The method for encrypting an electronic file comprises the following steps: upon receiving a first biometric information set sent by a first terminal, extracting, from the first biometric information set, a characteristic data item corresponding to each biometric information item, wherein the first biometric information set comprises multiple biometric information items of a user collected by the first terminal (S10); performing, according to a preset fusion algorithm, fusion on multiple extracted characteristic data items to generate a corresponding digital watermark (S20); and embedding the digital watermark in an electronic file to be encrypted to perform encryption on the electronic file (S30). The invention increases security for an electronic file.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Tseng, Kuokun
Ip, Waihung
Abstract
An ECG signal-based identity recognition method and device. The method comprises steps of: acquiring multiple electrocardiogram data items of a first biometric information set sent by a first terminal and corresponding to a multi-lead ECG signal of a user, and employing the multiple electrocardiogram data items as an electrocardiogram data set of the user (S10); comparing the electrocardiogram data set against a pre-stored electrocardiogram data set (S20); and if the electrocardiogram data set matches the pre-stored electrocardiogram data set, then determining that the identity of the user is successfully recognized (S30). The method of the present invention improves accuracy of identity recognition according to an ECG signal.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Yin, Fu
Zhou, Jiarui
Zhu, Zexuan
He, Shan
Abstract
Provided is a visualization network-based two-stage metabolite mass spectrometry detection method for a compound. The method is based on existing two-stage metabolite mass spectrometry databases, performs a visualization network construction operation on two-stage mass spectrometry data of respective compounds, extracts, from respective visualization networks, global network features as input features for the respective compounds, performs training on the same by means of an SVM to obtain a compound detection model, and constructs a decoy test set to perform cross-validation on the detection model so as to ensure reliability and accuracy of the detection model, such that the model can be actually used in a metabolite mass spectrometry detection method for a compound. The two-stage metabolite mass spectrometry detection method for a compound can be realized easily, and can significantly increase a speed and precision of detection of a compound.
G06F 17/30 - Information retrieval; Database structures therefor
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
85.
METHOD AND SYSTEM FOR MEASURING CONTENT OF DISSOLVED ORGANIC HALOGENS IN WATER
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Chen, Baiyang
Bu, Yinan
Abstract
A method and system for measuring the content of dissolved organic halogens in water. The method comprises separating dissolved inorganic halogens from dissolved organic halogens in water to be measured by means of an electrodialysis technique (S1), wherein the electrodialysis technique is carried out to realize thorough separation of the dissolved organic halogens and the dissolved inorganic halogens, so as to reduce the use of an active carbon and a disposable adsorption column, simplify steps and improve the efficiency; converting the separated dissolved organic halogens into the dissolved inorganic halogens by means of a photocatalysis technique (S2), wherein a special high-temperature combustion device is not needed, the operation is simple and easy, testing can be performed at a normal temperature, combustion of the active carbon and addition of a catalyst are not needed, and this is more environmentally friendly; and analysing the converted dissolved inorganic halogens using a device with an ion analysis function (S3), so as to analyse and measure a total content index of the dissolved organic halogens and a content index of each of the dissolved organic halogens (fluorine, chlorine, bromine and iodine) in the water to be measured.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Chen, Baiyang
Bu, Yinan
Abstract
A rice pre-treatment device and method, in particular, a rice pre-treatment device and method having the function of reducing lead and mercury content. To overcome deficiencies such as complex operation, chemical agent addition and impact on the appearance of rice, in the existing method for removing or reducing lead and mercury in rice, provided are a rice pre-treatment device and method for reducing lead and mercury content in rice, which can be implemented in home conditions rapidly and efficiently, without the addition of any additional chemical compositions. The rice pre-treatment device is provided with a water inlet (1), a valve (2), a valve (3), a valve (4), an ultrasonic generator (5), a draining pipe (6), a control panel (7), a central processing unit (8), an ultrasonic generator (9), an electric rice cooker connecting channel (10), and a container (11). By means of a user autonomously setting operation requirements, the device can automatically accomplish the function of ultrasonically washing rice, and achieve the effect of reducing lead and mercury content in rice through these steps. As regards the rice obtained by the pre-treatment device and method with the described steps, 55%~86% of lead can be removed, and 39%~89% of mercury can be removed. No chemical agents are added in any operation step.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
MCNAIR NEW POWER CO., LTD (China)
Inventor
Cui, Yanhui
Wu, Junwei
Chang, Song
Zheng, Xinyu
Zhang, Xinhe
Li, Zhongyan
Qu, Deyang
Abstract
Provided are a sulphur-carbon composite for a lithium-sulphur battery and a preparation method therefor, and an electrode material and a lithium-sulphur battery containing the sulphur-carbon composite. The composite comprises carbon nanoparticles, sulphur loaded in the carbon nanoparticles and a silicon dioxide template agent remaining in the carbon nanoparticles, wherein, by mass percent, the sulphur content is 40%-70% and the content of the silicon dioxide template agent is 0.3%-3%. The residual silicon dioxide template agent is dispersed in the carbon nanoparticles so as to reduce the pore diameter of the carbon nanoparticles.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhou, Jiarui
Ji, Zhen
Yin, Fu
Zhu, Zexuan
Abstract
A simulation generation method and system for metabolism mixture MS/MS mass spectra, not dependent on a real experiment. A large number of required metabolism mixture MS/MS simulation mass spectra can be generated by modifying parameter settings, and the amount of samples is not limited by an acquisition condition. In addition, when the conditions and an environment change, there is also no need to make a new design and conduct an experiment, helpful for improving the research and development efficiency of metabolomics. According to the method, a non-linear regression model is used for generating the MS/MS simulation mass spectra, and the problem relating to accuracy caused by simple linear superposition in a traditional algorithm is avoided. In addition, a noise probability model is built by making statistics of real metabolism mass spectrum data, and a complex interference situation needing to be taken account of in realistic applications is covered. The generated mass spectrum data is more practical, can effectively guide the early research and development of metabolomics, and can be partially used for verifying the algorithm performance.
G06F 19/12 - for modelling or simulation in systems biology, e.g. probabilistic or dynamic models, gene-regulatory networks, protein interaction networks or metabolic networks
89.
METHOD FOR PREPARING LOCAL SOFT SOLDER COATING ON SURFACE OF ALUMINUM ALLOY
A method for preparing a local soft solder coating on the surfaces of aluminum and an aluminum alloy in an atmospheric environment under the low-temperature condition. The method achieves preparation of a local soft solder coating on the surface of aluminum or an aluminum alloy in the atmospheric environment under the low-temperature condition by means of the function of ultrasonic phonochemistry. The method overcomes the defect of difficulty in preparation of a soft solder wetting coating on the surface of aluminum or an aluminum alloy. Compared with other coating processes such as electroplating, the method is simple in process, low in manufacturing cost, and pollution-free, and can form a local coating within an extremely short period of time.
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhou, Jiarui
Ji, Zhen
Hua, Yunzhi
Zhu, Zexuan
Abstract
A metabolite MS/MS mass spectrum computer simulation method. Optimization design is conducted on a fragmentation rule by using an efficient Memetic algorithm, and a molecule mass spectrum specificity serves as a fitness function value of an optimizing individual, so that the formed simulation method has a theoretically global optimum mass spectrum distinguishing ability, and the accuracy of the metabolite identification can be effectively improved. In the optimization process, a sparse fitness function value is added to guide the optimizing individual, and it can be ensured that a formed fragmentation operation tree can have a minimum redundancy. Accordingly, in fewer molecule operation steps, an identification mass spectrum having a higher specificity is obtained, and the problem of robustness brought by a complex analysis process in an existing algorithm is effectively avoided. Finally, the method is not dependent on the real mass spectrum and molecule data input particularly, and formed simulation mass spectrum data has the generality and can be used for establishing a general metabolite identification database.
G06F 19/12 - for modelling or simulation in systems biology, e.g. probabilistic or dynamic models, gene-regulatory networks, protein interaction networks or metabolic networks
91.
ADVERTISEMENT RECOMMENDATION METHOD AND SYSTEM BASED ON VIDEO CONTENT AWARENESS
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zhang, Haijun
Cao, Xiong
Huang, Xiaohui
Abstract
The present invention relates to an advertisement recommendation method based on video content awareness, comprising: A) a shot segmentation step: segmenting source video into independent scenes using a clustering-based method; B) an object detection step: obtaining relevant information about an object in the video for each independent scene using region-based convolutional feature detection; C) an advertisement image search step: searching for an advertisement object of a matching object in a database using a clothes search and a category-based strategy; D) an advertisement target object optimisation step: obtaining a candidate advertisement for the sought advertisement object of a matching object via optimisation processing; E) an advertisement insertion position optimisation step: optimising the distance between an advertisement and a target object as well as the area of an overlapping region of the advertisement and all the objects. A video advertisement delivery optimisation model improves the appeal of advertisements and reduces the disturbance advertisements cause to users.
H04N 21/231 - Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers or prioritizing data for deletion
G06Q 30/02 - MarketingPrice estimation or determinationFundraising
92.
METAL TAG DETECTION SYSTEM ADOPTING VORTEX TECHNIQUE
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Xu, Hongguang
Zhang, Tingting
Zhang, Qinyu
Abstract
A metal tag detection system adopting a vortex technique, comprising an alternating-current signal generator (1), and a detection coil (2), a phase/amplitude detector (3), a direct-current offset/amplifier (4), an analog to digital converter (5) and a digital signal processor (6) which are successively connected to one another, wherein the alternating-current signal generator (1) is respectively connected to the detection coil (2) and the phase/amplitude detector (3). The metal tag detection system based on eddy current detection belongs to noncontact detection, has a high detection speed, and can easily implement automatic detection. The detector is high in sensitivity and capable of realizing relatively high-density information recording. The detection system has a small volume and therefore can be designed into a portable detection device.
HARBEN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Xu, Yong
Yan, Ke
Wang, Xiaodan
Abstract
An identification method based on handprint imaging, comprising the following steps: step I: registration, respectively acquiring a palm print and fingerprint; step II: image pre-processing; step III: determining whether an input image is a palm print or a fingerprint; step IV: palm print identification. The identification method abandons a traditional single identification mode, and comprises both palm print identification and fingerprint identification systems. A to-be-tested person inputs a palm print or fingerprint, and the system automatically identifies that the input characteristic is the palm print or the fingerprint, and finalizes matching. The present invention creatively introduces a double-fingerprint identification, thus further improving the precision of fingerprint identification.
HARBEN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Li, Ji
Dong, Wenyi
Abstract
An ozone contact tank is provided, which comprises an inlet channel (1), an aeration channel (2), a water distribution zone (3), a reaction zone (4) and an outlet channel (5) disposed according to the intake order and connected in series. The top of the inlet channel (1) is communicated with the top of the aeration channel (2). The bottom of the aeration channel (2) is communicated with an inlet end of the water distribution zone (3) via a narrow passage (6). The top of the water distribution zone (3) is communicated with the bottom of the reaction zone (4) via a perforated plate (41). The top of the reaction zone (4) is communicated with the outlet channel (5). An ozone contact method using the ozone contact tank is also provided, by which sterilization effect can be greatly improved.
HARBEN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zha, Xiaoxiong
Wang, Lulu
Abstract
A multi-story container house building method based on security assessment and the multi-story container house are provided. The building method involves the following steps: a) determining the type of the container used to construct the container house; b) performing the security assessment of the support columns of the multi-story container house; c) performing the security assessment of the whole multi-story container house; d) constructing the multi-story container house in accordance with the result of the security assessment. The multi-story container house comprises a number of containers with the same type. The design process includes steps of performing the security assessment of the support columns and the whole multi-story container house, determining the structure of the multi-story container house in accordance with the result of the assessment, and constructing the multi-story container house in accordance with the determined structure and designing the building functions of the multi-story container house.
HARBEN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zha, Xiaoxiong
Liu, Yixiang
Yu, Futao
Abstract
A hollow concrete component and the method for preparing the same are provided. The component comprises concrete (2), a columned base (1) containing the concrete (2) and a columned hollow core (3) formed after the molding of the concrete (2). The preparation method comprises the following steps: a. agitating and mixing concrete aggregate, cement and water to form the concrete (2) based on a certain ratio, b. pouring the concrete (2) which is glued to the internal wall of the columned base (1) into the columned base (1) to form a hollow core (3) by centrifugal rotation, and c. making the concrete (2) to react with carbon dioxide to form the hollow concrete component after the concrete (2) is molded in the columned base (1).
E04C 1/40 - Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
HARBEN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL (China)
Inventor
Zha, Xiaoxiong
Li, Yuling
Yu, Min
Liu, Xichao
Cang, Youqing
Abstract
A steel pipe concrete column filled with sea sand concrete and a method for preparing the same are provided. The steel pipe concrete column includes a steel pipe basal body (10). A river sand concrete protective layer (20) is poured on the exterior surface of the basal body (10), an inner river sand concrete layer (30) is poured on the inner wall of the basal body (10) by centrifugation, and a sea sand concrete (40) is made of the sea sand without being desalted and cast in situs in a hollow area enclosed by the inner layer (30).
E04C 3/34 - ColumnsPillarsStruts of concrete or other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
E02D 5/30 - Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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