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204 results about "Mine site" patented technology
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Method for evaluating variable flow state sand carrying capacity of ultra-deep high-pressure gas well
The invention provides an ultra-deep high-pressure gas well variable-flow-state sand-carrying capacity evaluation method, and relates to the technical field of oil-gas exploration, and the method comprises the steps: collecting well logging data of a target gas well, constructing a gas-liquid two-phase flow parameter expression, and carrying out the quantitative analysis of key flow characteristics such as the gas content and the speed; a mathematical model is established by applying an H-K flow state judgment criterion, and numerical simulation is performed in combination with fluid dynamics simulation software, so that the flow state in the shaft is accurately identified and distinguished; then, according to high-temperature and high-pressure characteristics under actual working conditions and sand shape information monitored in a mine field, carrying out secondary correction on the resistance coefficient CD so as to improve a sand-carrying capacity prediction model; and finally, the critical sand-carrying flow velocity and yield are calculated based on the corrected model, and a scientific basis is provided for setting the sand-carrying capacity and reasonable production parameters of the gas well in different flow states. Safe and efficient development of a gas reservoir is guided, production parameter setting is optimized, and long-term stable and efficient operation of a gas well is ensured.
Owner:PETROCHINA CO LTD
Electric shovel unmanned excavation method and system based on digital twinning
ActiveCN120739195AMechanical machines/dredgersDesign optimisation/simulationSimulationNeural network nn
The invention belongs to the technical field of trajectory planning, and provides an electric shovel unmanned mining method and system based on digital twinning in order to solve the problem that the design of an electric shovel unmanned mining trajectory is difficult to deal with a complex heap surface, and the method comprises the following steps: obtaining sensing data, a historical mining trajectory and historical heap surface point cloud data; an electric shovel unmanned mining digital twin system is constructed based on the sensing data; uploading the historical mining trajectory and the historical heap surface point cloud data to a central database, and training by using generative artificial intelligence to obtain prediction trajectories suitable for different mine fields; constructing an agent model by using a neural network, calculating to obtain a predicted fullness rate, and performing simulated excavation according to the predicted fullness rate and the predicted trajectory to obtain electric shovel excavation control data; according to the method, deep reinforcement learning is utilized, the electric shovel unmanned excavation track is generated based on the electric shovel excavation control data, the electric shovel is controlled to conduct unmanned excavation in real time, the safety of the excavation process is guaranteed, and the track control precision of the electric shovel is also improved.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY
Mining area methane emission inversion method based on satellite observation and Gaussian plume model
PendingCN121457134ADesign optimisation/simulationGeographical information databasesEmission inventoryData set
The invention discloses a mining area methane emission inversion method based on satellite observation and a Gaussian plume model. The method comprises the following steps: S1, acquiring a satellite inversion XCH4 data set, meteorological data, emission list data and global energy monitoring data; s2, determining a methane emission source and a research area in a geographic map by using the emission list data and the global energy monitoring data; s3, obtaining methane background concentration and XCH4 enhancement in the geographic map by using an atmospheric background concentration calculation method; s4, combining XCH4 enhanced spatial distribution and meteorological data in a geographic map to identify a methane enhanced plume of a methane emission source in the research area; and S5, performing Gaussian plume flow field simulation inversion of the methane emission source through the Gaussian plume model, and outputting the methane emission rate of the methane emission source at the current time through inversion of the Gaussian plume model. According to the method, the methane emission and the time sequence data of the methane emission can be obtained through accurate inversion, the frequency of obtaining the methane emission is improved, and the methane emission can be obtained according to time scale accumulation.
Owner:NANKAI UNIV +1
Simulation and management of electric vehicle charging infrastructure
PCT designated stageWO2025208185A1Charging stationsLoad forecast in ac networkProcessing InstructionElectric cars
A facility for predicting on site electric power requirements for maintaining a fully electric fleet of vehicles in a mining operation to ensure sustainable electric operations, comprising a server comprising communications module configured to receive data and to transmit load management instructions; plurality of electrical charging stations; plurality of electric vehicles configured to be recharged by a selected electrical charging station; wherein the server comprises processor coupled with non-volatile memory, the non-volatile memory storing processing instructions that, when executed by the processor, causes the processor to simulate a total electrical power demand of the mine site due to the plurality of cabled mine equipment and the plurality of electric vehicles for each electric vehicle and each charging station within the facility over a prescribed period thereby to simulate and determine an energy storage capacity requirement of the charging stations of the facility through the prescribed period; thereby to forecast the electrical load management needs of the facility through the prescribed period.
Owner:FORTESCUE LTD
Mine personnel behavior identification method and system based on YOLOv5
ActiveCN121074986ACharacter and pattern recognitionBiological modelsFrame sequenceImaging processing
The invention relates to the technical field of image processing, and discloses a mine personnel behavior recognition method and system based on YOLOv5. The method comprises the following steps: acquiring a video frame sequence of a mine site, extracting an environment interference vector from the video frame sequence, and optimizing the video frame sequence based on the environment interference vector to obtain a clear frame sequence; human body key point coordinates and posture vectors are extracted from the clear frame sequence, and time sequence changes of the key point coordinates are analyzed to obtain preliminary action features; calculating a similarity score between the preliminary action feature and a preset standard template, and refining the preliminary action feature based on the similarity score to obtain a refined action component vector; and matching the refined action component vector from a preset action library to obtain an action recognition result, and generating corresponding action response output based on the action recognition result. According to the invention, the accuracy of personnel action recognition in a complex mine environment is improved.
Owner:HENAN YINGCONG TECH DEV CO LTD
Mineral resource prediction model construction method based on complex geological background
The invention discloses a mineral resource prediction model construction method based on a complex geological background, and relates to the technical field of mineral resource prediction, a three-dimensional ideal geological background field without mineralization interference is constructed based on the geological background of an unknown mining area, and the three-dimensional ideal geological background field is used for displaying the mining field of a non-mineralization area; constructing a three-dimensional real geological field based on the exploration data, and comparing the three-dimensional real geological field with the three-dimensional ideal geological background field to obtain first difference distribution data; extracting geologic features of the known mineralization area, and generating interference factors based on the geologic features; introducing the interference factor into the ideal geological background field to generate an interference coupling background field, and extracting the difference between the interference coupling background field and the ideal geological background field as second difference distribution data; the mineral resource prediction model is constructed based on the first difference distribution data and the second difference distribution data, the method can adapt to prediction requirements of different geological backgrounds, and the intelligent level and application flexibility of a mineral resource prediction system are remarkably improved.
Owner:SICHUAN PROVINCIAL INST OF COMPREHENSIVE GEOLOGICAL SURVEY & RES +1
Multi-vehicle joint trajectory prediction method based on self-vehicle fusion and related equipment
ActiveCN120932442AInternal combustion piston enginesDetection of traffic movementPredictive methodsSimulation
The invention relates to the technical field of vehicle automatic driving, and discloses a multi-vehicle joint trajectory prediction method based on self-vehicle fusion and related equipment. The method comprises the steps of collecting multi-vehicle state data and mine field environment data in a target mine field, and performing preprocessing and lane changing behavior calibration to generate a standard multi-vehicle motion data set; carrying out intention extraction on own vehicle planning intention information through own vehicle planning tracks and operation task information, and carrying out mine field environment feature extraction and vehicle dynamic distribution on a standard multi-vehicle motion data set to construct mine field scene context representation; attention weight calculation and feature fusion are carried out through operation task features in the self-vehicle planning intention information and vehicle interaction features in the mine scene context representation, intention enhancement scene representation is generated, and a multi-modal query result is constructed; and through multi-vehicle collaborative prediction, path conflict detection and collaborative optimization scheduling, a multi-vehicle collaborative operation scheme is generated. The accuracy of mine field multi-vehicle trajectory prediction and the safety of collaborative operation are improved.
Owner:LUOBO NETWORK (HANGZHOU) INFORMATION TECHNOLOGY CO LTD
Material grabbing machine with continuous transportation capacity and bulk material continuous loading and unloading method
The invention discloses a material grabbing machine with continuous transportation capacity, relates to the field of engineering machinery, and is suitable for bulk material loading and unloading scenes such as ports and mine fields. Aiming at the problems of low efficiency, easiness in structure damage, poor adaptability in narrow places and the like in the process of'grabbing-rotating-discharging 'of a traditional material grabbing machine, the material grabbing machine comprises a material grabbing machine main body, a shell hopper, a hopper system fixed on a base and an inclined belt conveyor system, a hopper inclination angle control system is additionally arranged, and the operation process is optimized to be'grabbing-discharging'; during operation, the shell hopper grabs bulk materials and then moves to the position above the hopper system for discharging, the angle of the hopper is adjusted through the inclination angle control system, the bulk materials are guided to the conveyor system and directionally conveyed to a transport tool, and a machine body does not need to rotate. The operation efficiency is improved, the structural stress of equipment is reduced, the service life is prolonged, the device is suitable for narrow sites, and secondary transfer is not needed.
Owner:XCMG EXCAVATOR MACHINERY CO LTD
Opencast coal mine safety control method and device, electronic equipment and storage medium
The invention provides an open pit coal mine safety management and control method and device, electronic equipment and a storage medium, and relates to the technical field of mine field safety protection. The position of a key person is obtained in real time, whether the key person enters a corresponding operation area or not is verified, associated video monitoring is automatically triggered according to the in-place state of the person, safety measure execution is verified through real-time mapping of a video stream and an operation process state, and early warning is conducted when the safety measure execution is abnormal. The problems that in the prior art, due to the fact that a'process-position-video 'triple closed-loop verification mechanism is not formed and multi-source data space-time alignment and dynamic verification are not achieved, the security measure execution rate is insufficient, supervision lags behind, positioning data staticization is caused, video coverage is not matched, approval information is delayed, and data errors exist can be solved.
Owner:BEIFANG WEIJIAMAO COAL POWER CO LTD
Mine car obstacle avoidance method and system based on vehicle-mounted flat plate
The invention provides a tramcar obstacle avoidance method and system based on a vehicle-mounted flat panel, and the method comprises the steps: a vehicle-road cooperation server detects the change of the load state of a target tramcar, and calls a mine field image cache library of a mine field; querying a target image set in a mine field image cache library based on the equipment identifier of the target mine car; determining actual compartment size information of the target mine car according to the target image set; updating the actual compartment size information to a mine car size configuration table; and sending a mine car size configuration table to the vehicle-mounted flat plate in each mine car, wherein the mine car size configuration table is used for each mine car to execute obstacle avoidance operation. The tramcar can be effectively supported to accurately avoid obstacles, and the operation safety and efficiency of the tramcar are improved.
Owner:SHENZHEN CONGPING TECH CO LTD
Mine field early warning area division method and related equipment
PendingCN121482932ALocation information based serviceBurglar alarm by disturbance/breaking stretched cords/wiresMonitoring siteThree-dimensional space
The embodiment of the invention provides a mine field early warning area division method and related equipment, and the method comprises the steps: obtaining monitoring data at a plurality of preset monitoring points, the monitoring data comprising position data and corresponding physical monitoring data; constructing a spatial distribution diagram based on the position data on the plurality of preset monitoring point positions and the corresponding physical monitoring data; identifying a plurality of abnormal monitoring points in the spatial distribution diagram through an early warning safety model; determining an early warning area boundary based on the plurality of abnormal monitoring points; and generating a corresponding visual partition result in the spatial distribution diagram based on the early warning region boundary. Through the steps of the method, the areas with risks in the mine field can be identified based on the three-dimensional space information and the physical monitoring data of the monitoring points, dynamic early warning division of area levels is realized, the space distribution condition of the mine field risks is reflected, and the safety management efficiency of the mine is improved.
Owner:GUIZHOU KAI PHOSPHORUS CO LTD +1
Three-dimensional lithium battery mine visualization system based on digital twinning
PendingCN121328228AData processing applicationsDesign optimisation/simulationEnvironmental resource managementRadioactive agent
The invention provides a three-dimensional lithium battery mine visualization system based on digital twinning, and the system comprises a physical sensing layer which is disposed at a lithium battery mine site, and comprises a plurality of sensor networks used for collecting geologic bodies, production equipment, environment parameters, personnel positions, and vehicle states; and the data interaction layer comprises a data integration platform and an edge computing node, and is used for carrying out cleaning, fusion, protocol conversion and edge side preliminary analysis on the multi-source heterogeneous data uploaded by the physical sensing layer, and uploading the multi-source heterogeneous data to a cloud. By integrating the slope monitoring sensor and the professional analysis model, real-time evaluation and advanced early warning of the slope stability and the tailing pond safety are achieved, major accidents such as collapse and dam break are effectively prevented, meanwhile, the harmful element diffusion model is utilized, and the safety of the tailing pond is improved. Migration paths of fluoride dust, radioactive substances and potential leakage pollutants in the atmosphere and the water system are dynamically simulated, accurate decision support is provided for environmental risk emergency response, and the influence on surrounding ecology is reduced to the maximum extent.
Owner:宜春市锂电行业数字化转型促进协会
System and method for supporting elevated power rails
A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.
Owner:CATERPILLAR GLOBAL MINING EQUIPMENT LLC
A method for monitoring the state of unmanned mine cars
ActiveCN117092994BVehicle position/course/altitude controlPosition/direction controlTransport engineeringReal-time computing
The present application provides a kind of unmanned mine car state monitoring method, comprising: planning vehicle fleet travel path, marking dangerous area of travel path;Different mine car dangerous area travel state data and non-dangerous area travel state data are monitored;Different mine car passes through cooperative monitoring and determines abnormal mine car in dangerous area and non-dangerous area;Vehicle fleet cooperatively controls abnormal mine car and normal mine car, ensures mine car safety;Based on the vehicle fleet after cooperative control, different vehicle fleet collision possibility is judged and adjusted, the threat of abnormal mine car to normal mine car is reduced, and the normal mine car in mine field is ensured orderly work.
Owner:HUANENG YIMIN COAL POWER CO LTD +1
Multi-view video data generation method for unstructured mining area scene
The invention discloses a multi-view video data generation method for an unstructured mining area scene, and relates to the technical field of automatic driving. The method comprises the following steps: firstly, constructing BEV expression fusing mine terrain geometry and semantics, and generating a dangerous area mask and a scene graph; secondly, converting a test requirement into a parameterized scene script; then, training a semantic terrain world model which takes a Diffusion Transform as a backbone and introduces a dangerous area priority mask mechanism; and finally, generating a semantic topography BEV of a time sequence and an equipment track by using the world model under the driving of a scene script, and further synthesizing a multi-view and geometrically consistent mining area driving video sequence which conforms to safety constraints. According to the method, the problems of lack of unstructured mining area scene training data, high acquisition cost and high risk are solved, high-quality video data covering long-tail dangerous working conditions can be efficiently and controllably generated, and the perceptual generalization ability and safety of a mining area automatic driving system are remarkably improved.
Owner:BEIHANG UNIV
System and method for supporting elevated power rails
A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.
Owner:CATERPILLAR GLOBAL MINING EQUIPMENT LLC
A method for classifying and early warning of abnormal psychological states in miners
ActiveCN120748742BDiagnostic signal processingHealth-index calculationTime domainPsychological status
This invention discloses a method for graded early warning of abnormal psychological states in miners. It extracts and filters features from three modal signals processed in the time domain, frequency domain, time-frequency domain, and spatial domain to obtain corresponding first target signal feature sets. Based on optimal transmission theory, the maximum mean difference algorithm, and a selected kernel function, the first target signal feature sets are aligned locally and globally to obtain second target signal feature sets. These second target signal feature sets are then mapped to a unified, preset-dimensional embedding space for comparative learning to obtain a third target signal feature set. The third target signal feature set is then weighted, summed, and input into a bidirectional long short-term memory network to obtain initial fused features. These features are then input into a GhostNet network to obtain fused features, which are then input into the psychological state recognition module of a psychological graded early warning model to determine the miner's psychological state. Finally, these features, combined with mine environment parameters, are input into the early warning grading module of the psychological graded early warning model to obtain early warning information.
Owner:XIAN UNIV OF SCI & TECH +1
Gas-water seepage field simulation method based on multi-scale analysis
PendingCN121525541AMaterial analysis using wave/particle radiationDesign optimisation/simulationMacroscopic scaleRock sample
The invention discloses a multi-scale analysis-based gas-water seepage field simulation method, which specifically comprises the following steps of: based on a digital rock core reconstructed by a CT (Computed Tomography) scanning image of a typical rock sample of a target reservoir, adopting a microcosmic pore network flow simulation technology; the change rule of the stratum seepage capacity in different stratum pressure gradients and water drive processes, the use degree of a pore network and the water drive process in a pore are calculated, and then a correlation chart with the rock permeability and the pressure gradients is established and used for rapid measurement and calculation of the actual reserve use degree and the recovery degree of the water-invaded sandstone gas reservoir. The method starts from a rock microcosmic pore channel, the scale is amplified to a macroscopic oil reservoir during application, the method has the cross-scale characteristic, and the method is used for rapidly measuring, calculating and evaluating the reserve utilization degree and the recovery degree of the actual water-invaded sandstone gas reservoir and is beneficial to rapid development of the gas reservoir engineering scheme design in a mine field.
Owner:PETROCHINA CO LTD
Mine site ecological management system cockpit graphical user interface for electronic devices
1. The name of the design product: mine ecological management system cockpit graphical user interface for electronic equipment. 2. The use of the design product: for an electronic device. 3. The design points of the design product: in the graphical user interface. 4. The picture or photo that best indicates the design points: front view. 5. The electronic device is a conventional design, and other views are omitted. 6. The use of the graphical user interface: for controlling the operation interface. 7. The human-computer interaction mode of the graphical user interface: the interface runs on a computer as the main interface of the system, is used for work collaboration management, enters the interface change state diagram after clicking the house logo in the upper right corner of the main interface, the middle of the diagram is a map and point position, the left and right sides are various data statistical charts, and the bottom is project information. The specific value can be displayed by stopping the mouse on the chart.
Owner:HUADIAN COAL IND GRP +1
A mine site operation risk level assessment system
The present application relates to the technical field of mine risk assessment, and discloses a mine operation risk grade assessment system. The geological data acquisition module of the system identifies potential rock layer instability risk areas through multidimensional sensing monitoring and hierarchical clustering algorithm; the mine image analysis module labels thermal anomaly feature areas with the help of thermal infrared image acquisition and feature separation and pattern recognition; the risk area synthesis module integrates the two areas to generate a comprehensive risk monitoring area; the structure displacement evaluation module analyzes rock layer displacement vector changes to determine abnormal fluctuation degree; the ground pressure interaction evaluation module analyzes rock layer stress and groundwater pressure interaction to evaluate geological stress field coupling imbalance index; and the risk grade determination module determines the risk grade classification of the comprehensive risk monitoring area according to the above evaluation results, which can comprehensively and accurately evaluate mine operation risk and ensure operation safety. The system improves the accuracy of rock mass stability judgment and can detect potential rock layer instability hazards earlier.
Owner:SHAANXI JINYUAN ZHAOXIAN MINING CO LTD
A method and system for multi-stage collaborative progressive scheduling of mine-power coupling
The application discloses a kind of mine electricity coupling multi-stage collaborative progressive scheduling method and system, constructs the process network model of ore flow and power flow coupling, abstracts "node-connector" structure and "push-pull" interactive mechanism;According to the multi-stage collaborative progressive scheduling framework of "week before-day before-intra-day", a multi-time scale optimal scheduling model is established;Prioritize the controllable load in the multi-time scale optimal scheduling model, form a multi-round hierarchical load flexible control strategy for the ore mining and dressing process;Based on the multi-time scale optimal scheduling model, generate week before plan, day before plan;Through real-time simulation system, the multi-stage collaborative progressive scheduling strategy is verified.The application establishes mine electricity collaborative progressive scheduling method, realizes the effective connection of multi-time scale and real-time closed-loop control and "mine determines electricity-mine electricity interaction-electricity adjusts production" whole-chain collaborative optimization, effectively improves the stability and economy of mine operation.
Owner:NR ELECTRIC CO LTD +2
A mine field slope microseismic monitoring device
PendingCN122129613AMachine framesSubsonic/sonic/ultrasonic wave measurementMechanical engineeringPhysics
This invention relates to the field of mine slope technology and discloses a mine slope micro-seismic monitoring device, including a monitoring instrument body. A transmission line is plugged into one side of the monitoring instrument, and a sensing probe is electrically connected to one end of the transmission line. An embedded transmission mechanism is provided at the bottom of the sensing probe. The embedded transmission mechanism includes a positioning plate, and the top of the positioning plate has an installation groove for use with the sensing probe. By setting the embedded transmission mechanism, this invention can press the positioning plate downwards to allow the conical guide head and the embedded rod to enter the underground of the slope until the bottom of the positioning plate contacts the ground surface, compacting the soil. Then, the sensing probe is fixed to the positioning plate by a clamping mechanism. When the vibration force generated by blasting is transmitted, the vibration force is transmitted to the positioning plate by the two embedded rods, and then to the sensing probe by the positioning plate, thereby monitoring accurate and effective data and improving the accuracy of monitoring.
Owner:MCC NORTH (DALIAN) ENG TECH CO LTD
Ecological restoration pile based on mine
The invention belongs to the technical field of mine soil remediation, and provides an ecological remediation pile based on a mine. The device comprises a main pile body, and the main pile body is arranged in a mine field area to be repaired; the main pile body is provided with a water drawing pipe box, and the water drawing pipe box is filled with liquid containing salt. One end of the water drawing assembly extends into the main pile body; the water drawing assembly comprises an absorption rope body and a rotary meshing block, one end of the absorption rope body extends into the water drawing pipe box, and the other end of the absorption rope body extends out of the main pile body; the rotary occlusion block is mounted on the absorption rope body and is used for occlusion of animals; wherein liquid containing salt enters animal bodies through the absorption ropes via the rotary occlusion blocks and attracts the animals to move in the range of the mine field to be repaired. The design is reasonable, the operation is simple, and the ecological restoration can be effectively realized by attracting animals to move in the mine field; therefore, the device is suitable for industrial popularization.
Owner:CHINA RAILWAY 19 TH BUREAU GROUP MINING IND INVESTMENT CO LTD
Mechanical antenna-based mine-used drift node relocation method
ActiveCN116592891BNavigational calculation instrumentsBiological modelsMining engineeringReal-time computing
The application discloses a mine drift node relocation method based on a mechanical antenna, comprising the following steps: acquiring node position information of original positioning nodes in a mine, and adding low-frequency transmitting nodes and vibration sensors to the original positioning nodes; after the mine collapses, a measurement network is constructed above the mine field based on a drone carrying a measurement base station, the low-frequency transmitting nodes are started and transmit positioning signals, the low-frequency signals of the low-frequency transmitting nodes are received by the measurement base station, and the position information of the relocated nodes after the accident is obtained; the node position changes of the original positioning nodes and the position information of the relocated nodes after the accident are compared by modeling, and the situation change of the mine is sensed in real time. The application provides a more rapid and accurate drift node relocation scheme, and rescue can be realized more rapidly.
Owner:BEIHANG UNIV +1
Directional blasting device for mine field blasting
Owner:XINJIANG TIANHE BLASTING ENG CO LTD
Method and system for controlling a plurality of drill rigs
Disclosed herein are a control method and system. The system includes: a deactivation control; a control centre controller for storing an association between the deactivation control and a selected set of mine sites; a plurality of autonomous drill rigs, each drill rig having a drill shutdown module to disable a function of the respective drill rig upon receipt of a deactivation command; and a mine site controller associated with each mine site, each mine site controller being coupled to all autonomous drill rigs located at the respective mine site with which the mine site controller is associated. Activating the deactivation control transmits a deactivation command from the deactivation control to the control centre controller. The control centre controller forwards the deactivation command to a mine site controller associated with each mine site in the set of mine sites for distribution to all autonomous drill rigs at that mine site.
Owner:TECHNOLOGICAL RESOURCES PTY LTD
Subsynchronous oscillation suppression method and system for mine field mining area power supply system
ActiveCN120955640AFlicker reduction in ac networkPower oscillations reduction/preventionAlgorithmWavelet decomposition
The invention relates to the technical field of smart power grids, and provides a subsynchronous oscillation suppression method and system for a mine mining area power supply system, and the method comprises the steps: collecting different types of electric data of each electric shovel in the mine mining area power supply system, and obtaining an electric data sequence of each electric shovel; marking a target electric shovel, performing multilayer wavelet decomposition on an electric data sequence of the target electric shovel, obtaining all detail coefficients of each layer, and determining an adaptive adjustment threshold value of the detail coefficients of the same layer; determining a consistency characteristic value of each type of electric data of the target electric shovel, obtaining an adjustment value of a detail coefficient of each layer of the same type of electric data of the electric shovel, and obtaining a de-noised electric data sequence of the electric shovel according to the detail coefficient and inverse discrete wavelet transform; and separating subsynchronous oscillation fault data according to the de-noised electric data sequence to realize subsynchronous oscillation suppression of the mine field mining area power supply system. The subsynchronous oscillation suppression effect of the power supply system can be improved.
Owner:JIANGXI COPPER +1
Coal mine catastrophe scene deduction method
PendingCN120725130AInference methodsNeural learning methodsRestricted Boltzmann machineEmergency rescue
The invention discloses a coal mine catastrophe scene deduction method, which belongs to mine disaster emergency rescue, and comprises the following steps: collecting environmental data of a coal mine stope; performing data screening according to the environment data and the key elements, and extracting time sequence features; deducing time sequence characteristics by using an energy-based dynamic time sequence model to obtain probability energy distribution of disaster development; according to the probability energy distribution, constructing a Boltzmann machine model with a limited time sequence for predicting a mine catastrophe development trend; wherein the explicit layer unit corresponds to a sensor observation value at a current time point, the hidden layer unit captures potential time sequence characteristics and modes, correlation between a hidden layer at the current moment and hidden layers at the previous N moments is established through time sequence connection, and model training is conducted through a time-dependent conditional contrast divergence algorithm; aiming at the problem that a traditional Boltzmann machine model is mainly used for processing static distribution, so that the processing precision of a coal mine catastrophe scene with obvious time sequence evolution characteristics is low, the coal mine catastrophe scene deduction precision is improved.
Owner:CHINA UNIV OF MINING & TECH
Three-dimensional composite superstructure muffler module and muffler
The application discloses a three-dimensional composite super-structure muffler module and a muffler. The muffler module comprises a rigid three-dimensional zigzag cavity structure and porous or fibrous material located around the cavity. The cavity structure is composed of a perforated panel, a multilayer coiled cavity and a partition. The coiled cavity is a multilayer structure, and each layer of the cavity is separated into a labyrinth-shaped channel by a coiled plug. The coiled porous or fibrous material around the cavity has high porosity. The application utilizes the high-frequency muffling characteristics of the porous or fibrous material and the low-frequency muffling characteristics of the super-structure material. The designed composite muffler has low-frequency and broadband muffling effects, can attenuate low-frequency single-frequency noise or broadband noise, and simultaneously greatly reduces the use of porous or fibrous material compared with a traditional resistive muffler. Furthermore, the muffler can be designed as an array-type muffler, and can be used in actual production and life, such as a substation, a mine site, a cooling tower and the like, which have a fan system and require large-area muffling and noise reduction.
Owner:国网陕西省电力有限公司 +2
Vehicle scheduling method and system based on complete information static game in mining area scene
PendingCN121583085ARoad vehicles traffic controlParticular environment based servicesInformation processingSimulation
The invention discloses a vehicle scheduling method and system based on a complete information static game in a mining area scene, and belongs to the field of traffic information processing, and the method comprises the steps: S1, obtaining a high-precision map of the mining area scene, recognizing and screening out road sections with potential road right conflicts, and forming a conflict road ID set; s2, collecting dynamic state parameters of all unmanned mine cars and manned mine cars in the current mining area scene in real time; s3, for each unmanned mine car, judging whether a predetermined driving path of the unmanned mine car intersects with the conflict road ID set or not; if the intersection exists, executing S4, otherwise, continuously monitoring the state of the vehicle; s4, constructing a complete information static game model between the unmanned mine car and other mine cars on the conflict road section, and determining an optimal road right distribution scheme by solving Nash equilibrium; and S5, based on a game solving result, generating a corresponding vehicle control instruction, and issuing the vehicle control instruction to each mine car through MQTT or broadcast.
Owner:TIANJIN CEMENT IND DESIGN & RES INST CO LTD