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338 results about "Mine site" patented technology

Multi-construction-method collaborative dust fall intelligent control method based on deep learning

The invention provides a multi-construction-method collaborative dust fall intelligent control method based on deep learning. The method comprises the following steps: collecting mine field data of a mine field in real time; wherein the mine field data comprises mine field environment data, equipment operation data and topographic data; constructing a digital mine field model based on the mine field data; wherein the digital mine field model comprises a terrain model, an equipment model and a dust generation and diffusion model; based on the mine field data and the digital mine field model, constructing a reinforcement learning agent; based on the reinforcement learning agent, performing dust fall control on the mine field; the dust fall control is monitored on the basis of the pre-created human-computer interaction interface, intelligent and efficient control over the mine field dust fall process is achieved, the dust fall effect and the resource utilization efficiency are improved, and meanwhile the flexibility and reliability of the system are improved through human-computer cooperative control.
Owner:NORTHEASTERN UNIV CHINA

Remote on-line real-time monitoring and early warning system for mine site slope

The invention relates to the technical field of side slope monitoring and early warning, in particular to a mine site side slope remote online real-time monitoring and early warning system which comprises a multi-source data monitoring unit, a data processing and analyzing unit, a side slope instability judging unit, an instability grading early warning unit and an early warning verification pushing unit. The method comprises the following steps: collecting monitoring data of a plurality of data sources to obtain time sequence monitoring data of each data source, carrying out noise reduction on the time sequence monitoring data, then decomposing the time sequence monitoring data, calculating a time-frequency feature vector through an energy density function, and optimizing the time-frequency feature vector through feature screening; calculating a slope stability evaluation index by optimizing the time-frequency feature vector, constructing an instability risk index to judge a slope instability risk level, constructing an early warning index, and combining the early warning index with the slope instability risk level to establish a graded early warning mechanism to obtain a slope instability early warning level; and verifying the slope instability early warning grade, and performing early warning according to the slope instability early warning grade passing the verification. According to the invention, the false alarm rate of slope monitoring and early warning can be reduced.
Owner:DONGGUAN INFORMATION TECH HANGZHOU

Double-flywheel system, intelligent mine field system and method

The invention discloses a double-flywheel system and an intelligent mine field system and method.The double-flywheel system comprises a sensing system and a planning system, the sensing system fuses acquired multi-dimensional environment data of a mine field through the bird's-eye view angle technology and a deep learning algorithm, a mine field 3D environment model is established, and environment sensing data is output; the planning system performs planning path prediction on each mine car by using a deep learning algorithm and a Monte Carlo tree search algorithm based on vehicle management information, task scheduling data and environment perception data fed back by the motorcade management platform, and generates an optimal driving path. The vehicle management information comprises vehicle posture and health information, vehicle position state information, vehicle operation task priority information and mine field safety standard information. According to the invention, through deep cooperation of sensing and planning and integration of motorcade management information and safety standards, the vehicles can work according to the optimal path more accurately, the working yield of the mine field is improved, and the development of the intelligent mine field is promoted.
Owner:GREEN ORIGIN READY TECHNOLOGIES (SHENZHEN) CO LTD

Opencast coal mine safety detection and production evaluation method based on unmanned aerial vehicle surveying and mapping

The invention provides an open pit coal mine safety detection and production evaluation method based on unmanned aerial vehicle surveying and mapping. The method comprises the steps of obtaining surveying and mapping data of a target mine field through unmanned aerial vehicle oblique photography surveying and mapping; obtaining geographic information data including a digital orthoimage, a digital elevation model, an oblique photography model and digital vector data based on the surveying and mapping data; constructing a three-dimensional digital twinborn scene of the target mine field based on the geographic information data; performing profile detection on the three-dimensional digital twinborn scene, constructing a vertical profile, and performing safety detection on the slope angle, the step height and the width based on the vertical profile; and performing filling or excavation measurement on the coal mining area, the coal piling area or the soil piling area of the target mining area, and calculating the volume to obtain a production evaluation result. The problems that in the prior art, a geographic surveying and mapping method is low in efficiency and disordered in data, and a safety detection and production evaluation method depends on detection equipment, so that safety detection and production evaluation of open pit coal mining are poor in accuracy and low in efficiency are solved.
Owner:COMP APPL TECH INST OF CHINA NORTH IND GRP

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

Dust falling structure for concentrating machine

The utility model discloses a dust falling structure for a concentrating machine, which relates to the field of mine machinery, and comprises a box body, a feed hopper is fixedly arranged at the right part of the upper end of the box body, and screening components are fixedly arranged at the bottom positions of the left part and the right part of the inner wall of the box body. According to the dust falling structure for the concentrating machine, ore particles of different sizes can be classified and collected through the screening assembly, the screening effect can be obvious due to the vibration effect of the screening plate, and the possibility that the three screening net areas are blocked can be reduced. And when the sieve plate vibrates, the plurality of shifting plates drive the ore materials to quickly move on the guide plate, so that the area between the lower part of the feeding hopper and the guide plate can be prevented from being blocked. Dust generated in the box body can be absorbed through the dust falling assembly, dust on the two filter plates can be scraped off through the cleaning assembly, and the dust enters the collecting box through the two inclined grooves.
Owner:PANZHIHUA JIEDI MINING CO LTD

Electric shovel unmanned excavation method and system based on digital twinning

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

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

Artificial intelligence autonomous identification model

The invention relates to the field of mine intelligent management, and discloses an artificial intelligence autonomous identification model, which comprises a data acquisition module used for acquiring visual data, infrared data, audio data and environmental data from a coal mine site; the data preprocessing module is used for carrying out scale normalization, data enhancement, short-time Fourier transform, Mel frequency cepstrum coefficient extraction and normalization processing on the collected data; and the feature extraction module is used for extracting features from the visual data, the infrared data, the audio data and the environment data through a deep neural network. And through a multi-modal information fusion technology, the adaptability to a complex environment in mine operation is improved, the complementarity of different modal data is fully mined, and the recognition precision and robustness are remarkably improved. And an introduced feedback and self-learning optimization mechanism enables the model to be automatically adjusted according to real-time data, so that the stability and adaptability in a mine environment are enhanced.
Owner:NINGXIA ANZHENG SCI & TRADE CO LTD

Strip mine blasting numerical simulation analysis method based on RHT constitutive model

The invention discloses a strip mine blasting numerical simulation analysis method based on an RHT constitutive model, and the method comprises the following steps: S1, building a strip mine blasting model: building a three-dimensional model through ANSYS software according to the actual geological conditions and blasting design requirements of a strip mine, and determining the geometric dimension of the model, the arrangement of blast holes, and the parameters of a charging structure; s2, determining material parameters: performing sampling and physical and mechanical property testing on field rocks of the strip mine to obtain rock parameters, determining rock material parameters in combination with an RHT constitutive model, determining explosive material parameters according to types of explosives used on site, and determining parameters of other related materials such as air and filling materials. According to the method, the RHT constitutive model is adopted, so that the accuracy of numerical simulation is improved; a more reliable basis is provided for blasting engineering design; the method has obvious economic benefits and social benefits; and powerful technical support is provided for the development of the strip mine blasting technology.
Owner:GUIZHOU XINLIAN BLAST ENG GRP

Manned transport vehicle scheduling method and device

The invention discloses a manned transport vehicle scheduling method and device, and relates to the manned transport vehicle scheduling technology, and the method comprises the steps: obtaining the vehicle information and map data of a target mining area, and generating a global scheduling scheme through the vehicle information and map data, the global scheduling scheme comprises the step of carrying out vehicle scheduling according to the determined number of vehicles to be allocated at each loading point and the determined number of vehicles to be allocated at each heavy-load transportation path; according to the method, the manned transport vehicles in the target mining area are scheduled according to the global scheduling scheme, the mining area vehicles can be accurately scheduled, accurate and balanced scheduling of the manned transport vehicles is realized, the overall efficiency of mining area operation is improved, and the transportation cost is reduced.
Owner:EACON TECHNOLOGY CO LTD

Simulation and management of electric vehicle charging infrastructure

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

On-site analysis and detection device for thallium element in mine water

The invention relates to the technical field of thallium element analysis and detection, in particular to an on-site analysis and detection device for thallium element in mine water. The water sample storage assembly is mounted on one side of the interior of the frame and is used for storing a mine water sample; the water sample collecting, storing, transferring and detecting functions are integrated, real-time detection can be conducted on a mine site, complexity and professional requirements of manual operation are reduced through automatic and integrated design, thallium elements in the water sample can be detected, sludge samples can be treated at the same time, and the water sample collecting, storing, transferring and detecting functions are achieved. More data support is provided for comprehensive evaluation of mine water, an organic matter adsorption plate, a molecular sieve and an aluminum oxide sieve treatment assembly are arranged to effectively remove organic matters and peculiar smell in a water sample, and meanwhile, the detection accuracy is improved.
Owner:YICHUN JIANGLI LITHIUM BATTERY NEW ENERGY IND RES INST +1

Mine personnel behavior identification method and system based on YOLOv5

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

Radar monitoring and early warning method and system based on mine field slope instability trend

The invention relates to the technical field of slope monitoring, in particular to a mine field slope instability trend-based radar monitoring and early warning method and system, and the method comprises the following steps: recognizing a slope region with an instability risk on a geological image through a pre-trained Fast R CNN model, and taking the slope region as an instability risk region; scanning the instability risk area in real time through a slope radar to obtain a radar image sequence of the instability risk area; and acquiring a geological image sequence of the instability risk area with the same time sequence as the radar image sequence, determining an instability trend of the instability risk area based on the radar image sequence and the geological image sequence, and then allocating an early warning level according to the instability trend. According to the method, locking of instability factors in advance is realized on the basis of the Fast R CNN model, falling rock and soil loosening sliding track trends are quickly analyzed in real time on the actual falling rock and soil loosening track obtained through multi-modal data solution on the basis of the LSTM network, and thus integrated display, focusing monitoring and graded early warning of mining area risk points are realized.
Owner:ZHONGAN GUOTAI (BEIJING) TECH DEV CENT +1

Shale gas gathering and transportation station yard blockage and high-low pressure gathering and transportation interference diagnosis optimization method

The invention discloses a shale gas gathering and transportation station yard blockage and high-low pressure gathering and transportation interference diagnosis optimization method, and belongs to the field of natural gas mine field gathering and transportation. According to the method, the judgment method of the blockage site of the pipeline in the station and the calculation method of the blockage degree are determined by checking the friction resistance of the whole-station pipe fitting of the shale gas station and calculating the pressure drop of the pipeline in the station, and a solution is provided for the problem of gathering and transportation interference in the high-pressure well mine field and the low-pressure well mine field. The method is suitable for shale gas gathering and transportation stations in the middle and later periods of development, can assist in making of equipment overhaul and production parameter optimization schemes, further improves the operation efficiency of a pipe network, and has wide application prospects.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Pulse bag type dust collector for ore processing in mine field

The invention belongs to the technical field of bag type dust collection, and discloses an ore processing pulse bag type dust collector for a mine field, the ore processing pulse bag type dust collector comprises a support, a cleaning bin and a dust hopper, the left bottom and the right top of the cleaning bin are sequentially provided with an air inlet pipe and an exhaust pipe, and the inner wall of the cleaning bin is provided with a partition plate; a plurality of groups of filter bags which are distributed in a matrix are fixedly mounted at the top of the partition plate, a transfer bin is fixedly mounted at the bottom of the inner wall of the cleaning bin, and an air inlet which communicates with and coincides with the air inlet pipe is formed in the left side of the transfer bin. According to the device, high-pressure dust-containing air flow from the air inlet pipe is converged through the inner cavity of the transfer bin and finally is obliquely and upwards sprayed out through the air outlet pipe, spiral ascending air flow from bottom to top is formed in the inner cavity of the cleaning bin, and the tip movement direction of the dust-containing air flow is spirally changed, so that any part of the outer surface of the filter bag can be uniformly covered; therefore, the uniformity of the filter bag during filtering is ensured, and the maintenance period of the device is effectively prolonged.
Owner:CHENGDE XINYUAN MINING 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

Hard roof-gas cooperative control method for fully mechanized caving mining of extra-thick coal seam

The invention relates to the technical field of coal seam fully-mechanized caving mining, and discloses an extra-thick coal seam fully-mechanized caving mining hard roof-gas cooperative control method which comprises the following specific steps: collecting coal mine site stratum composition data; a numerical simulation physical model of the coal mine working face is established based on FLAC3D software, and the horizon of the hydraulic fracturing hard roof is obtained through simulation; mining-induced stress field inversion is carried out, and the fracturing implementation time and the drilling position are determined; according to the super-thick coal seam fully-mechanized caving mining hard roof-gas cooperative control method, the layer position of the hydraulic fracturing hard roof, the fracturing implementation time and the drilling position are obtained through simulation analysis, the position of a drilling end hole point is determined according to the goaf gas migration rule, and the gas migration rule of a mining field is determined by combining the expansion and evolution rule of hydraulic cracks and the mining field gas migration rule. The strong mine pressure weakening mechanism and the gas seepage path and gas pressure distribution characteristics in the gas extraction process are mastered, and effective control over the hard roof and efficient gas treatment are achieved.
Owner:EAST CHINA JIAOTONG UNIVERSITY +1

Intelligent identification method for roadway surrounding rock loosening circle

The invention relates to an intelligent identification method for a roadway surrounding rock loosening circle, and belongs to the technical field of intelligent identification of geotechnical engineering. The method comprises the following steps: S1, acquiring a borehole peeping image which is a picture intercepted from video data measured by a borehole imager; s2, preprocessing and crack identification are carried out on the borehole peeping image; s3, measuring the elastic modulus of the rock through an elastic wave method; s4, calibrating the range of the loose circle through the elastic modulus and the identified fracture, and carrying out category balance improvement through a weighted loss function; s5, training a YoLov5 deep learning model through the calibrated loose circle information, and improving the YoLov5 deep learning model; s6, evaluating and verifying the model; and S7, inputting a borehole peeping image obtained on site and the measured elastic modulus into the model to predict the loose circle. According to the method, the loosening circle can be quickly and accurately identified on an actual mine site, and a scientific basis is provided for roadway support design and mine safety management.
Owner:SHANDONG UNIV OF SCI & TECH +2

Multi-vehicle joint trajectory prediction method based on self-vehicle fusion and related equipment

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

Segmented-roadway-free mining method for steeply inclined thin ore body

The invention belongs to the technical field of trackless mining preparation drift type filling mining, and discloses a steeply inclined thin ore body segmentation-free roadway mining method, which comprises the following steps of space partitioning and foundation engineering construction; stoping and filling in layers; a slope coping channel for trackless mining and transportation equipment to pass through is formed on an upward layered bottom plate on the top of the connection roadway of the lower stope through the blasting technology, the slope coping channel communicates with the segmented winze through the short connection roadway, and ore removal is conducted through the segmented winze; and entering the previous layer through the coping channel, and repeating the steps of stoping and filling the layer and constructing the coping channel until the mining is finished. A slope channel is formed by blasting at the top of a layered stope joint roadway, an upper layer of mine field is communicated with a draw shaft and a ventilation shaft of an upper section, and the sectional draw shafts are combined with the collaborative layout of top and bottom stage haulage drifts and ore loading transverse drifts, so that the beneficial effect that the whole accurate mining work amount is obviously reduced is achieved.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST

Multi-parameter combined impact coal rock instability failure early warning method

The invention relates to the technical field of coal rock failure early warning, in particular to a multi-parameter combined impact coal rock instability failure early warning method, which comprises the following steps of: firstly, carrying out engineering geology investigation on a mine site, collecting a coal rock sample and testing ground stress distribution; secondly, preparing a standard coal rock test piece in a laboratory, and performing nondestructive testing; then, determining a loading and unloading path according to numerical simulation, and designing a graded loading and unloading path of the coal rock test pieces of the roof group and the laneway side group; then, loading and unloading the test piece by using a true triaxial loading testing machine, and synchronously acquiring electromagnetic radiation and acoustic emission data; and finally, by calculating the acoustic emission energy, the fractal dimension and the joint fractal dimension, dividing the grading early warning critical value of each index, and constructing a three-level early warning model for the coal rock impact instability. According to the method, the coal rock impact instability risk can be effectively identified, graded early warning is provided, corresponding safety measures are guided to be taken on site, and safe production of a mine is guaranteed.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Radar monitoring and early warning method and system based on mine slope instability trend

The present invention relates to the field of slope monitoring technology, and more specifically to a radar monitoring and early warning method and system based on the instability trend of mine slopes. The method comprises the following steps: using a pre-trained Fast R-CNN model to identify slope areas at risk of instability on a geological image as instability risk areas; using a slope radar to scan the instability risk areas in real time to obtain a radar image sequence of the instability risk areas; obtaining a geological image sequence of the instability risk areas that is co-sequential with the radar image sequence, and determining the instability trend of the instability risk areas based on the radar image sequence and the geological image sequence, and then assigning an early warning level based on the instability trend. The present invention uses the Fast R-CNN model to achieve early locking of instability factors, and based on the LSTM network, quickly and in real time analyzes the sliding trajectory trends of falling rocks and loose soil based on the actual trajectory of falling rocks and loose soil obtained by solving multimodal data, thereby achieving integrated display of risk points in the mining area, focused monitoring, and graded early warning.
Owner:ZHONGAN GUOTAI (BEIJING) TECH DEV CENT +1

Coal mine production process management and control system

The invention provides a coal mine production process management and control system, and relates to the technical field of process management, and the system comprises a data collection module which is used for obtaining the data of each production process in a mine field in real time, and outputting initial data; the preprocessing module is used for preprocessing the initial data to obtain to-be-analyzed data; the model training module is used for training a to-be-trained model selected from the model database in combination with a preset data resource, outputting an alternative model, and outputting the alternative model meeting a preset performance condition as an analysis model; and the data analysis module is used for analyzing the to-be-analyzed data based on the analysis model, outputting a process analysis result, and performing parameter updating and performance optimization on the analysis model in combination with preset data resources and cloud data. According to the invention, data of each production flow in the mine field can be monitored in real time, potential risks of each production flow can be found in time, parameter updating and performance optimization are continuously carried out on the model, and the real-time performance and accuracy of a flow analysis result are ensured.
Owner:INNER MONGOLIA SHANGHAIMIAO MINING CO LTD

Multi-time-step CLXRLMSE model method for accurately predicting mine field gas concentration

The invention relates to a CLXRLMSE model method for predicting mine field gas concentration in multiple time steps, and belongs to the field of coal mine safety monitoring. The method comprises the following steps: realizing data denoising and stabilization processing through dynamic window moving average and stable wavelet transform; extracting gas concentration space correlation characteristics by adopting a multi-branch CNN (3 * 3 standard convolution, 5 * 5 cavity convolution and 1 * 1 compression convolution); constructing an LSTDM network, and synchronously capturing short-term fluctuation and long-term trend through double memory units; designing a risk-sensitive weighted loss function to strengthen high-risk missing report penalty; and XGBoost residual error correction and PSO hyper-parameter optimization are combined, so that the prediction error is reduced by 57%. Experiments show that the RMSE predicted by the method within 12 hours is smaller than or equal to 0.15%, the early warning response time is prolonged by 150%, and the occurrence rate of gas accidents is effectively reduced.
Owner:CHONGQING UNIV

Portable mobile open blasting cannon-avoiding blindage

The utility model discloses a portable mobile open blasting cannon-avoiding blindage, and relates to the technical field of mine field safety equipment. The device comprises a vertically-arranged protection plate, and a top shielding plate is hinged to the upper end of the protection plate; a supporting bottom plate is hinged to the front lower end of the protection plate; a supporting and fixing mechanism used for positioning the top shielding plate and the supporting bottom plate is arranged on the front side of the protection plate. The supporting and fixing mechanism comprises supports fixed to the left side and the right side of the upper portion of the protection plate respectively. A first connecting rod is hinged in the support; the lower ends of the first connecting rods are fixedly connected with the supporting bottom plate through first connecting bolts. When the supporting bottom plate and the first connecting rod rotate to the vertical state, the first connecting rod is located in front of the supporting bottom plate. Second connecting rods are hinged to left and right sides of the front end of the top shielding plate; sleeve clamps are hinged to the lower ends of the second connecting rods; the sleeve clamp is fixedly connected with the first connecting rod through a second connecting bolt. The beneficial effects of the utility model are that: can reduce the occupation space through folding, provide convenience for transportation and transfer work, be favorable for the application to the mining area of harsh environment.
Owner:福建省新华都工程有限责任公司

Hydraulic side dumping type mine car for mine field

A hydraulic side dumping type mine car for a mine field comprises a chassis and a compartment body, a bearing frame is fixed to the chassis, a round groove is formed in the top of the bearing frame, a round bottom is connected to the bottom of the compartment body and placed on the round groove, a first rotating shaft is arranged in the middle of the top of the compartment body, two side doors are rotationally arranged on the first rotating shaft, and cantilevers are connected to the side doors. The cantilever is rotationally arranged on the first rotating shaft, the end of the cantilever is rotationally connected with a first connecting rod, and the round bottom end is rotationally connected with the end of the first connecting rod through a second connecting rod; a shaft seat is arranged on the chassis, a locking mechanism is arranged on the shaft seat, and the rotating positions of the first connecting rod and the second connecting rod are positioned on the shaft seat. According to the hydraulic side dumping type mine car, the side door on any side can be opened for unloading; a discharging plate is carried on the mine car, and during discharging, the discharging plate on the discharging side guides mineral aggregate to be away from the track.
Owner:JIANGXI SITONG HEAVY IND MACHINERY

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

Road quality monitoring

A road quality monitoring system is able to identify and display to end users, e.g. dispatchers and supervisors, road segments that are in need of repair. Each road segment may be given a road quality score based on suspension loading data, such as strut pressure data, from trucks traversing the road segment or by launch velocity data from trucks leaving a mine site, such as a shovel or a dumping zone.
Owner:TECK RESOURCES LTD