An integrated pump station includes: a mounting frame, a pump body, and an electric drive device. The pump body is arranged on the mounting frame; the electric drive device comprises a housing body, a motor, a frequency converter and a controller; the housing body is arranged on the mounting frame; the motor, the frequency converter and the controller are arranged in the housing body, the motor being connected to the pump body; the motor is connected to the frequency converter by means of an electric wire, the frequency converter is connected to the controller by means of an electric wire, and a water cooling pipeline of the motor, a water cooling pipeline of the frequency converter and an oil cooler of the pump body sequentially communicate with one another.
Provided are an underground intelligent audio and video communication method and apparatus based on time-sensitive networking, and an electronic device, a storage medium, a computer program product and a computer program. The method comprises: performing time synchronization on a first-type underground device and a second-type underground device, wherein the first-type underground device is used for data collection, and the second-type underground device is used for data reception and data processing; assigning a timestamp to data to be processed that is collected by the first-type underground device, and the second-type underground device performing, on the basis of the timestamp, data synchronization on said data; and making the second-type underground device process audio data or video data in said data.
A time-sensitive networking (TSN)-based hydraulic support control apparatus, comprising: a control module, a TSN switch module and an execution module. The control module is used for sending sensing data of a hydraulic support and operation data of the control module to the TSN switch module; and the TSN switch module is used for uploading the sensing data and the operation data to a main communication link according to a corresponding time slot bandwidth, obtaining a control instruction from the main communication link, and adding a corresponding timestamp, so that the control module controls, on the basis of the control instruction and synchronization information, the execution module to drive the hydraulic support to act. According to the hydraulic support control apparatus, clock synchronization between the control apparatus and another control apparatus can be achieved, and the delay of the control apparatus is controllable, thereby ensuring control action synchronization between the control apparatus and the another control apparatus, thus improving production efficiency. Also provided is a control system of the TSN-based hydraulic support control apparatus.
Provided is a coal mine communication network system based on time-sensitive networking (TSN). The system comprises: a wired communication system, wherein a backbone network of the wired communication system is composed of a plurality of TSN network switches connected in a looped network topology, and the wired communication system is used for connecting a coal mine device as a terminal to a TSN network; and a wireless communication system, which is connected to the wired communication system, is composed of wireless communication devices compatible with a TSN protocol, and is used for connecting the coal mine device to the TSN network by means of wireless connection.
An electrohydraulic control system for a hydraulic support. The electrohydraulic control system comprises: a TSN main unit, which is used for planning a communication link bandwidth according to the type of data to be transmitted, and transmitting said data on the basis of a planned bandwidth; a TSN network switch, which is connected to the TSN main unit, wherein the TSN network switch is a master system clock and is used for outputting a time synchronization policy for each device of the system on the basis of a time synchronization protocol; a TSN signal converter, which is connected to the TSN network switch and is used for issuing time synchronization information on the basis of the time synchronization policies; and a plurality of cascaded TSN hydraulic-support controllers, which are connected to the TSN signal converter and are used for sending control signals to corresponding hydraulic supports on the basis of received data.
Provided is a hydraulic support control system, comprising hydraulic support controllers, wireless base stations, power boxes, isolation couplers, and a handheld terminal. The hydraulic support controllers are connected in series; one wireless base station is configured every N hydraulic support controllers; one power box and one isolation coupler are configured every M hydraulic support controllers; each wireless base station comprises a plurality of wireless communication modules; one wireless communication module is configured for a corresponding hydraulic support controller; the wireless communication modules are used for responding to the establishment of the connection between the handheld terminal and the hydraulic support controllers; the wireless communication modules configured for the hydraulic support controllers are converted into an activated state from a sleep state to establish wireless communication connection with the handheld terminal; and the handheld terminal is used for controlling hydraulic supports according to a hydraulic support action instruction.
The present application discloses a fully mechanized mining automation network system based on a time-sensitive network (TSN). The system comprises a main TSN switch, wherein the main TSN switch is arranged on a fully mechanized mining face. A plurality of subsystems in a fully mechanized mining automation system are respectively connected to the main TSN switch in different communication modes. The main TSN switch is used for realizing communication between the fully mechanized mining automation system and the outside, and in combination with TSN devices preset for the plurality of subsystems, realizing the communication between the plurality of subsystems.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
8.
CRANKSHAFT ASSEMBLY FOR PLUNGER PUMP, PLUNGER PUMP, AND PLUNGER PUMP STATION
Provided are a crankshaft assembly for a plunger pump, a plunger pump, and a plunger pump station. The crankshaft assembly comprises a crankshaft, a first gear, and a second gear. The crankshaft comprises a first connecting rod journal, a second connecting rod journal, a third connecting rod journal, a fourth connecting rod journal, a fifth connecting rod journal, a sixth connecting rod journal, a seventh connecting rod journal, a first journal, a second journal, a third journal, a fourth journal, a fifth journal, a sixth journal, a seventh journal, and an eighth journal. The first gear is arranged on the third journal, and the second gear is arranged on the sixth journal.
F04B 1/16 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
F04B 53/00 - Component parts, details or accessories not provided for in, or of interest apart from, groups or
9.
METHOD FOR TRAINING COAL ROCK INTERFACE RECOGNITION MODEL, METHOD FOR CUTTING CONTROL OF SHEARER, AND INTELLIGENT CONTROL SYSTEM
A method for training a coal rock interface recognition model is performed by a cloud server. The method includes receiving a sample coal rock distribution and sample multi-modal data from an edge processor, acquiring a sample load state feature based on the sample vibration data and the sample noise data; acquiring a sample cutting feature of a coal rock interface based on the sample video data. The method further includes acquiring a sample load feature for drum cutting based on the sample current data and the sample pressure data; calling the coal rock interface recognition model, and performing a decision-level fusion based on the sample load state feature; and training the coal rock interface recognition model based on the sample predicted coal rock distribution and the sample coal rock distribution to obtain a target coal rock interface recognition model
E21C 35/00 - Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or
G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
10.
THREE-DIMENSIONAL LASER POINT CLOUD VR DISPLAY METHOD AND APPARATUS
Provided are a three-dimensional laser point cloud VR display method and apparatus, an electronic device, a non-transitory computer-readable storage medium, a computer program product, and a computer program. The three-dimensional laser point cloud VR display method comprises: acquiring a target laser point cloud, and generating a target symbol distance field model corresponding to the target laser point cloud; on the basis of the target symbol distance field model, carrying out pose solving to obtain a target pose corresponding to the target laser point cloud; and carrying out incremental reconstruction on the target symbol distance field model according to the target pose to obtain a target global symbol distance field model, and displaying an image corresponding to the target global symbol distance field model.
The present application discloses a multifunctional cable trough retaining and protecting mechanism, and a control method. The mechanism comprises a middle trough of a scraper and a cable trough provided at one side of the middle trough of the scraper. Outer side walls of two sides of the cable trough are provided with a first baffle and a second baffle, respectively. Sides of the first baffle and the second baffle facing a bottom end of the cable trough are connected by a U-shaped frame, the U-shaped frame and the cable trough being slidably connected, and an end of the middle trough of the scraper facing the cable trough being provided with a telescopic support assembly used to control the U-shaped frame to move along a vertical direction. The mechanism further comprises a camera monitoring member for real-time monitoring of a working surface of the cable trough, a ground video server being linked to the camera monitoring member by means of a working surface ring network, an automation server being electrically connected to the ground video server, a controller being electrically connected to the automation server, and the controller being electrically connected to the telescopic support assembly. The present application implements real-time monitoring and automatic shielding of the cable trough, reducing manpower input.
H02G 3/04 - Protective tubing or conduits, e.g. cable ladders or cable troughs
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
12.
INSPECTION METHOD AND APPARATUS BASED ON AUGMENTED REALITY (AR) DEVICE
Disclosed in the present application are an inspection method and apparatus based on an augmented reality (AR) device. The method comprises: by means of an AR device, collecting an image of an inspection point; performing image recognition on the image to obtain fault information of the inspection point; on the basis of the fault information, determining a fault level of the inspection point; and on the basis of the fault level, performing maintenance on the inspection point through an inspection object. Thereby, on the basis of fault information, fault grading can be carried out on an inspection point, which allows maintenance to be performed on the inspection point considering the fault level, improving the timeliness and flexibility of fault handling and thus enhancing the inspection effect.
A water-based electromagnetic pilot valve for mines. A valve cavity is formed in a valve body (1); a first port (11), a second port (12) and a third port (13) which are in communication with the valve cavity are formed in the valve body (1); a split valve seat (2) comprises a first end valve seat (21), a second end valve seat (22) and a guide sleeve (23); a first liquid through hole (211) is formed in the first end valve seat (21); a second liquid through hole (221) is formed in the second end valve seat (22); a third liquid through hole (231) and a fourth liquid through hole (232) are formed in the guide sleeve (23); and an opening/closing assembly (3) is suitable for opening and closing the first liquid through hole (211) and the second liquid through hole (221), such that the connection state between the first port (11) and the third port (13) is opposite to the connection state between the second port (12) and the third port (13). The valve seat of the water-based electromagnetic pilot valve for mines is composed of three parts. During processing and production, processing difficulties such as inclined holes and blind holes are avoided, thereby lowering the processing difficulty and processing cost and increasing the reliability of the pilot valve.
F16K 11/056 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with ball-shaped valve members
F16K 17/30 - Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
F15B 13/02 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
A split valve seat and a valve. The split valve seat comprises an end valve seat (1), a guide sleeve (2) and a mating part (3), wherein the end valve seat (1) is provided with a first end face (11) and a second end face (12); a first liquid through hole (13) is formed in the end valve seat (1); the first liquid through hole (13) penetrates through the first end face (11) and the second end face (12); the guide sleeve (2) is provided with a third end face (21), a fourth end face (22) and a first peripheral surface (23); a second liquid through hole (24) and a third liquid through hole (25) are formed in the guide sleeve (2); the second liquid through hole (24) penetrates through the third end face (21) and the fourth end face (22), and the second liquid through hole (24) is in communication with the first liquid through hole (13); the third liquid through hole (25) penetrates through the first peripheral surface (23) and the second liquid through hole (24), such that the second liquid through hole (24) is in communication with the exterior of the guide sleeve (2); and the mating part (3) abuts against the fourth end face (22), such that the formed valve seat has a two-position two-way function or a two-position three-way function.
F16K 11/048 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with valve seats positioned between movable valve members
F16K 1/14 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve members
F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces Details
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
Provided in the present application is a digital hydraulic cylinder, comprising a hydraulic cylinder, wherein the hydraulic cylinder comprises a cylinder body, a piston and a piston rod, the piston is arranged in the cylinder body and divides a cavity of the cylinder body into a first cavity and a second cavity; a reversing valve, wherein the reversing valve comprises a valve body and a valve core, the valve body is provided with a first channel and a second channel, and the valve core is movably arranged in the valve body; an electric motor, wherein an output shaft of the electric motor is connected to the valve core and can drive the valve core to rotate; a first hydraulic pipeline and a second hydraulic pipeline, wherein the first cavity and the first channel are in communication through the first hydraulic pipeline, and the second cavity and the second channel are in communication through the second hydraulic pipeline; and a feedback assembly, wherein the feedback assembly is located outside the first cavity and the second cavity, and the piston rod is connected to the valve core through the feedback assembly.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
16.
COAL MINING MACHINE CUTTING PLANNING METHOD AND DEVICE BASED ON INSPECTION VISION PERCEPTION
A coal mining machine cutting planning method based on inspection vision perception, comprising: on the basis of a space mapping relationship between a mobile platform coordinate system and a geological coordinate system of a stope, digitally constructing a stope space and automatically detecting and recognizing a coal mining machine; perceiving and analyzing the motion state of the coal mining machine to obtain motion state information of the coal mining machine, and capturing and tracking the coal mining machine; and carrying out state perception on a target object of a coal mining machine part in a cutting space, and determining an optimal safe cutting curve on the basis of state perception data. A coal mining machine cutting planning device (300) based on inspection vision perception, comprising a space mapping module (310), a stope space digital construction module (320), a coal mining machine capturing and tracking module (330), and a cutting planning module (340). An electronic device, comprising at least one processor and a memory communicationally connected thereto, for use in executing the steps in the planning method. A non-transitory computer readable storage medium (800) storing computer instructions, for use in causing a computer to execute the steps in the planning method. By means of such configurations, for the fluctuation of a coal seam, the stope and the spatial state of operation equipment can be perceived and captured in real time by means of inspection vision, and the cutting curve can be adaptively adjusted, thereby achieving continuous operation cutting planning, and improving the automated production efficiency of the working face.
The present application relates to a video monitoring method and apparatus for a coal mine fully mechanized mining face, an electronic device, and a medium. At least one video monitoring device is installed close to an edge at any one of two sides of a top beam of at least one hydraulic support frame at every interval, a mounting frame used to affix the video monitoring device having a set upper elevation angle relative to a horizontal direction. The method comprises: acquiring the position of a coal mining machine; according to the position of the coal mining machine, determining multiple video monitoring devices to be started, and a preset point of each video monitoring device; and controlling each of the multiple video monitoring devices to rotate according to the determined preset point, so as to realize video monitoring of the coal mine fully mechanized mining face. Thus, by reasonably installing video monitoring devices, the video monitoring devices may complete intelligent video monitoring of the coal mine fully mechanized mining face in a preset point mode, according to the position of a coal mining machine.
The present application relates to a hydraulic support pushing control method and system based on an incremental digital hydraulic cylinder. The method comprises: using an inspection apparatus to obtain the straightness of a fully mechanized coal mining working face and to obtain a first offset of at least one hydraulic support; converting the first offset of the at least one hydraulic support to a valve core displacement of an incremental digital hydraulic cylinder; and according to the valve core displacement, controlling the at least one hydraulic support to move to a target position. In this way, the inspection apparatus is used to determine the first offset, and a distance measurement sensor is used to determine a second offset of the movement of a single support, thereby directly controlling a motor of the incremental digital hydraulic cylinder to adjust the position of the hydraulic support, so as to ensure the straightness of the fully mechanized coal mining working face, thus ensuring the straightness of the working face.
A fully mechanized mining face hydraulic system based on an incremental digital hydraulic cylinder (130). The system comprises a group of hydraulic supports (100), wherein each hydraulic support (100) comprises a bus controller (110), a detection device (120), and at least one incremental digital hydraulic cylinder (130); the incremental digital hydraulic cylinder (130) comprises an electric motor (131), a multi-way proportional valve (132), and a hydraulic cylinder body (133); the detection device (120) is used for detecting state information of the hydraulic support (100); the bus controller (110) is used for sending a rotation control instruction to the electric motor (131) according to the state information; the electric motor (131) is used for rotating forward or reversely to a corresponding angle according to the rotation control instruction, so as to control left-hand and right-hand reversing and a change in the proportional degree of opening of the multi-way proportional valve (132); and the multi-way proportional valve (132) is used for controlling, by means of left-hand and right-hand reversing and adjusting the proportional degree of opening, the hydraulic cylinder body (133) to extend or retract by a corresponding displacement amount.
E21D 23/00 - Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyors, mining machines or guides therefor
20.
PIEZOELECTRIC ACTUATOR, CONTROL VALVE, PILOT VALVE, REVERSING VALVE AND CONTROL SYSTEM
A piezoelectric actuator (100), comprising a casing (1), a driving part (2), a piezoelectric ceramic piece (3), a cable (4) and a swing rod (5). The driving part (2) is arranged in the casing (1), and the driving part (2) can move in the length direction of the casing (1). A chamber (11) is provided in the casing (1), and the piezoelectric ceramic piece (3) is arranged in the chamber (11). One end of the cable (4) passes through the casing (1) to connect to one end of the piezoelectric ceramic piece (3), and the other end of the piezoelectric ceramic piece (3) is connected to the driving part (2). One end of the swing rod (5) is pivotally connected to the casing (1), the other end of the swing rod (5) can swing, and the swing rod (5) abuts against the driving part (2). Further disclosed are a control valve, a pilot valve, a reversing valve and a reversing valve control system.
The present application relates to the technical field of coal-mining fully-mechanized coal mining faces, and provides a measurement method, system, and apparatus for an advancing distance of a fully mechanized coal mining face, and an electronic device. The method comprises: acquiring a distance between a distance measurement substation and at least one distance measurement identification card; determining the position of the distance measurement substation according to the distance between the distance measurement substation and the at least one distance measurement identification card and the position of the at least one distance measurement identification card; determining the position of a coal mining wall according to the position of the distance measurement substation and a fixed distance between the distance measurement substation and the coal mining wall; and according to the position of an open-off cut of the fully mechanized coal mining face and the position of the coal mining wall, determining an accumulated advancing distance of the fully mechanized coal mining face from the position of the open-off cut of the fully mechanized coal mining face.
The present application relates to the technical field of sound recognition and provides a sound recognition model training method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring a sound training sample and a sound recognition model to be trained; on the basis of a preset window length, processing the sound training sample to acquire the Log-Mel spectrogram of the sound training sample; and inputting the Log-Mel spectrogram into the sound recognition model for training so as to acquire a trained sound recognition model. Using time windows of different lengths to process the training sample may capture during feature extraction not only long-term steady-state features in sound signals, but also instantaneous fine signal changes, improving the accuracy of sound recognition, being suitable for different environments, and thus improving the practicability of the present solution.
A safety valve, relating to the technical field of safety valve manufacturing. The safety valve comprises a valve cover (1) and a dustproof component (2). A first cavity (11) is formed in the valve cover (1). The valve cover (1) has an inlet and an outlet. The dustproof component (2) is arranged at the end in the first cavity (11) close to the inlet of the valve cover (1). The dustproof component (2) comprises a dustproof member (21) and a nozzle (22). The nozzle (22) is connected to the dustproof member (21), and the nozzle (22) has an open state and a closed state. In the open state, the nozzle (22) is in communication with the inlet and the outlet of the valve cover (1). In the closed state, the nozzle (22) cuts off the inlet and the outlet of the valve cover (1).
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 15/14 - Check valves with flexible valve members
F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces Details
A hydraulic cylinder, the hydraulic cylinder comprises a reversing valve assembly (1), a piston assembly (3), a transmission assembly (4), and a conversion assembly (2). The reversing valve assembly (1) comprises a reversing valve component (12) and a driving component (11), the driving component (11) is connected to the reversing valve component (12), the piston assembly (3) comprises a piston rod (34), the conversion assembly (2) has a power input end and a power output end, the power input end of the conversion assembly (2) is connected to the piston rod (34), a power input end of the transmission assembly (4) is connected to the power output end of the conversion assembly (2), and a power output end of the transmission assembly (4) is connected to a side of a valve core (122) away from the driving component (11).
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 13/02 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
The present invention relates to the technical field of coal mine inspection, and in particular to a panoramic three-dimensional inspection system. The panoramic three-dimensional inspection system, comprising: a panoramic three-dimensional inspection device and a controller. The panoramic three-dimensional inspection device comprises a support shell, a pan-tilt motor, a rotating seat, a laser radar, a sliding ring, and an encoder. The controller is separately connected to the laser radar and the pan-tilt motor, and is used to control an output shaft of the pan-tilt motor and a rotating shaft of the laser radar to rotate so as to control the laser radar to perform panoramic scanning to obtain a target panoramic point cloud. According to the present disclosure in which the described solution is used, more comprehensive and three-dimensional laser point cloud information can be obtained.
The present application provides an automated coal mine working face liquid supply planning method and apparatus, an electronic device, and a medium. The method comprises: obtaining an original liquid supply curve corresponding to a working face coal mining process; obtaining from a comprehensive mining big data platform at least one type of original liquid supply process data; and according to the at least one type of original liquid supply process data, processing the original liquid supply curve to obtain a flow volume prediction curve. The present application allows for effectively improving automated coal mine working face liquid supply results, thereby improving the practicality of automated coal mine working face liquid supply.
Disclosed in the present application is an unmanned-aerial-vehicle inspection method. The unmanned-aerial-vehicle inspection method comprises the following steps: installing a robotic arm assembly in an area to be inspected, where an unmanned aerial vehicle needs to monitor and stay; acquiring a hovering instruction for the unmanned aerial vehicle regarding a desired position in said area; acquiring the real-time position of the unmanned aerial vehicle, and attitude information of same; generating a control instruction according to the hovering instruction, the real-time position and the attitude information; by means of the control instruction, making the unmanned aerial vehicle hover at the desired position, and sending to the robotic arm assembly position information of the unmanned aerial vehicle during hovering; the robotic arm assembly acquiring the hovering position of the unmanned aerial vehicle and performing a corresponding extension action to connect to the unmanned aerial vehicle, such that the unmanned aerial vehicle is hung on the robotic arm assembly; and rotors of the unmanned aerial vehicle stopping rotating and the unmanned aerial vehicle staying for monitoring.
A one-way throttle valve (21) and a hydraulic support lifting system using the one-way throttle valve (21). The one-way throttle valve (21) comprises: a valve body (211), a valve element (212), and an elastic member (213), wherein a liquid passage is provided in the valve body (211) and extends through the valve body (211) in the axial direction of the valve body (211), and an annular flange is provided in the liquid passage; the valve element (212) has an end face, and an annular face, which extends in the circumferential direction of the end face, and is provided with a flow passing hole (2122); the flow passing hole (2122) extends through the valve element (212), and the flow passing hole (2122) extends at an angle relative to the axial direction of the valve body (211); the end face is provided with a throttling hole (2121); the throttling hole (2121) extends through the valve element (212), and the throttling hole (2121) extends at an angle relative to the axial direction of the valve body (211); and the elastic member (213) acts between the valve element (212) and the valve body (211).
The present application provides an explosion-proof and intrinsically safe intelligent power supply box, comprising: a box body, which comprises an accommodation cavity, a window being provided on a surface of the box body; and an intrinsically safe power supply which is provided in the accommodation cavity, a wireless transmitter being provided on the intrinsically safe power supply, and the wireless transmitter being arranged at a position close to the window in the accommodation cavity. By providing the window, wireless signal transmission from inside the box to outside the box can be achieved.
A piston shoe assembly, and a radial piston pump driven by a polygonal hub. The piston shoe assembly comprises a piston sleeve and a shoe (5), wherein a piston (7) is provided in the piston sleeve; a first end of the shoe (5) is connected to the piston (7), and a second end of the shoe (5) is a sliding face (8) used for being in contact with a hub of a piston pump; and the sliding face (8) is provided with oil storage grooves (9).
F04B 1/053 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
Provided are a control method and apparatus for a fully mechanized coal mining surface of a coal mine, an electronic device, a non-temporary computer readable storage medium, a computer program product and a computer program. The method comprises: determining current position information of a coal mining machine; determining a target camera device according to the current position information; determining roof line information according to first image data acquired by the target camera device; determining drum position information according to second image data acquired by the target camera device, wherein the second image data is used for indicating real-time image data of a target area, and the acquisition time of the first image data is earlier than the acquisition time of the second image data; and performing coal mining operation on the target area according to the roof line information and the drum position information.
A real-scene monitoring method and apparatus (1000), which relate to the technical field of data processing. The real-scene monitoring method comprises: performing time synchronization processing on M data collection devices, and acquiring pose data of any data collection device (S201); for any data collection device, calling the data collection device to perform data collection on the current environment, so as to acquire point cloud and image data (S202); acquiring a relative coordinate conversion matrix between any candidate data collection device and a reference data collection device according to the pose data of any data collection device (S203); and acquiring panoramic point cloud data according to the relative coordinate conversion matrix and the point cloud and image data (S204). Therefore, panoramic point cloud data can be outputted in real time in a dynamically changing or complex environment, and high-precision three-dimensional reconstruction and positioning are performed on complex large-range indoor and outdoor scenes, such that the flexibility and accuracy of real-scene monitoring are improved, and the scenes are visual and can be used for intelligent analysis.
Provided are a control method and apparatus for mining height of a coal mining machine, a computer device, a computer-readable storage medium, a computer program product and a computer program. The method comprises: acquiring a mining height limit value of each coal mining section of a coal mining machine in the current coal web, and the mining height limit values of each mining section in a first preset number of historical coal webs before the current coal web; according to the corresponding mining height limit values of the same mining section in the historical coal webs, correcting the corresponding mining height limit values of the same mining section in the current coal web, so as to acquire a corresponding corrected mining height limit value of each mining section in the current coal web; performing smoothing processing on the corresponding corrected mining height limit value of each mining section in the current coal web so as to determine a mining height curve for the current coal web; and, according to the mining height curve, controlling the cutting height of a drum of the coal mining machine in the next coal web after the current coal web.
Provided are a system and a control method for unmanned mining on a fully mechanized coal mining face, an electronic device, a computer readable storage medium, a computer program product, and a computer program. The system comprises: an auxiliary decision support module used for generating a decision suggestion according to impact factor information of a mining process of a fully mechanized coal mining face on production, and sending the decision suggestion to a system analysis control module; a human-computer interaction control module used for receiving and displaying production state data of a fully mechanized coal mining face, generating adjustment data, and sending the adjustment data to the system analysis control module; a unit execution feedback module used for generating feedback data according to a device execution result, and sending the feedback data to the system analysis control module; and the system analysis control module used for summarizing and analyzing the received decision suggestion, adjustment data and feedback data to generate a control instruction, and sending the control instruction to the unit execution feedback module.
Provided are a video enhanced display method, apparatus, and system for a fully mechanized mining face, an electronic device, a computer readable storage medium, a computer program product, and a computer program. The method comprises: collecting a video surveillance image of a fully mechanized mining face; locating a target range in the video surveillance image, and generating a target range frame line and a target number corresponding to the target range frame line, wherein the target range comprises a hydraulic support range, a pedestrian channel space range corresponding to a hydraulic support, and a coal wall space range covered by the hydraulic support; and finally, superimposing the target range frame line and the target number corresponding to the target range frame line on the video surveillance image to generate a target video image, and displaying the target video image.
A driver, comprising a housing (2), a housing cover plate (13) and a connection end cover (1), wherein the housing (2) is respectively detachably connected to the housing cover plate (13) and the connection end cover (1); the housing (2) is provided with a first accommodation cavity, the housing cover plate (13) covers the first accommodation cavity, a first circuit board (11) is provided in the first accommodation cavity, and a first connector is provided on the first circuit board (11); and the connection end cover (1) is provided with a second accommodation cavity, the housing (2) covers the second accommodation cavity, a second circuit board (7) is provided in the second accommodation cavity, a second connector is provided on the second circuit board (7), and the first connector is connected to the second connector.
a); the liquid suction valve assembly (102) includes a liquid suction valve seat (1021), a liquid suction valve core (1022), and a first reset spring (1023); the liquid suction valve core (1022) is slidably connected to the spacer sleeve assembly (104); the first reset spring (1023) is located between the spacer sleeve assembly (104) and the liquid suction valve core (1022); and the end cover (105) is detachably connected to one end of the pump head body (101). The pump head assembly (100) is reasonable in internal structure and long in service life.
A height measurement sensor. The height measurement sensor comprises a main body (1), a first data processing device (2) and a second data processing device (3). The main body (1) is used for measuring a pressure difference between two points; the first data processing device (2) corresponds to the first end of the main body (1), one of the first data processing device (2) and the first end of the main body (1) is provided with a first socket (121), the other one is provided with a first plug (211), and the first data processing device (2) is connected to the main body (1) by means of cooperation of the first plug (211) and the first socket (121). The second data processing device (3) corresponds to the second end of the main body (1), one of the second data processing device (3) and the second end of the main body (1) is provided with a second socket, the other one is provided with a second plug (131), and the second data processing device (3) is connected to the main body (1) by means of cooperation of the second plug (131) and the second socket. The height measurement sensor is of a split structure, thus disassembly and assembly between two adjacent parts are convenient. When one part has faults, the part can be independently disassembled, and only components of the part are replaced, so that unnecessary loss of the components is avoided, waste of resources is reduced, and the replacement cost is reduced.
Provided in the present disclosure are an intelligent control system and method for a fully mechanized coal mining working face. The system comprises: at least one support; an intelligent control apparatus, which is arranged on the support; a first artificial intelligence (AI) chip module, which is integrated in the intelligent control apparatus; and a first image collection apparatus, which is connected to the first AI chip module. The first image collection apparatus acquires a first video image within a first preset range in real time, and sends the first video image to the first AI chip module; the first AI chip module performs recognition on the first video image in real time according to a pre-trained deep learning model, and sends a first recognition result to the intelligent control apparatus; and according to the first recognition result, the intelligent control apparatus controls the support to execute a corresponding action. Therefore, in view of the actual working condition of a working face, a corresponding adjustment can be automatically performed on the working state of a hydraulic support device on site, the problems of the real-time performance of control, full view at all angles, etc. are solved, and the workload of an operator observing a video image is also alleviated; and the present disclosure has high safety and high efficiency.
A fully mechanized mining control system (1000), comprising a hydraulic support control system (100), an integrated liquid supply system (200), a fully mechanized mining automation system (300), and a centralized monitoring control system (400), where the centralized monitoring control system (400) is respectively connected to the hydraulic support control system (100), the integrated liquid supply system (200) and the fully mechanized mining automation system (1000). The fully mechanized coal mining automation system (1000) is respectively connected to the hydraulic support control system (100) and the integrated liquid supply system (200). The fully mechanized coal mining control system (1000) is highly integrated, enables the integrated operation of systems, and has stable data transmission and low latency.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
E21D 23/00 - Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyors, mining machines or guides therefor
41.
HYDRAULIC SUPPORT CONTROLLER AND HYDRAULIC SUPPORT CONTROL SYSTEM
The present invention provides a hydraulic support controller and a hydraulic support control system. The hydraulic support controller comprises a bus communication unit, a network exchange unit, and a control assembly; the bus communication unit and the network exchange unit are respectively connected to the control assembly; the control assembly is used for obtaining a control instruction of a hydraulic support and related data of the hydraulic support and respectively sending the control instruction and the related data to the bus communication unit and the network exchange unit; and the network exchange unit and the bus communication unit are used for sending the control instruction and the related data to the next stage of a hydraulic support controller, fully-mechanized coal mining automation system, or centralized monitoring control system. According to the hydraulic support controller of embodiments of the present invention, the integration level is high, and the transmission efficiency and synchronization of instructions and data can be effectively improved by means of the bus communication unit and the network exchange unit, thereby reducing the transmission time delay.
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