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34results about How to "Avoid randomness" patented technology

Dynamic-increment-based gated aggregation knowledge graph recommendation method

PendingCN122594582AReduce sampling overheadreduce noise
The application provides a dynamic increment-based graph information gate aggregation knowledge graph recommendation method, solves the data instability caused by random sampling and the noise fusion problem caused by double diffusion in the knowledge graph convolution recommendation method. The method comprises: dynamically selecting Top-K adjacent edges and adjacent point fusion for the current node in the knowledge graph (K is a positive integer of 10-20) in sequence. On the one hand, the matching score value of the current node, user embedding, adjacent edge and adjacent point is calculated by using the attention mechanism, the high correlation of the adjacent edge, adjacent point graph information and the candidate node of the next step is selected by using the score value, on the other hand, the selected graph information is adaptively adjusted and fused by using the gate mechanism, the adjacent information is accurately integrated into the current node embedding, and then the candidate node is diffused in sequence. Finally, through the operation of the adjacent fusion, the current node information and the adjacent graph information can be directly fused once, so that the noise information in the double diffusion and multiple fusion graphs is prevented.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

A hand prober for a security officer training system

This utility model relates to a training system and hand probe device for security personnel, comprising: a training uniform, a mannequin, and a hand probe device; the training uniform is worn on the mannequin, and a wireless communication tag is affixed to a predetermined position on the inside of the uniform; the hand probe device communicates wirelessly with a client, and one or more wireless communication tag readers are installed within the hand probe device. This utility model facilitates in-depth analysis and accurate feedback of training content, effectively avoids the subjectivity and arbitrariness of manual assessment, ensures the objectivity and consistency of assessment results, and helps improve the quality and effectiveness of security personnel training.
Owner:ZHONGKE HONGTUO (SUZHOU) INTELLIGENT TECH CO LTD

Work order processing method, processing system, electronic equipment and computer program product

PendingCN121903220AEnable active managementImprove loop closure rateOffice automationNeural learning methodsResource poolSoftware engineering
The invention provides a work order processing method and system, electronic equipment and a computer program product, belongs to the technical field of data processing, and aims to solve the problems of an existing work order processing method in the aspects of joint detection, precise positioning, quick response and the like. The method comprises the following steps: generating a corresponding work order task in response to a work order request; based on a predefined fault type troubleshooting sequence, determining a fault type which needs to be troubleshot currently for the work order task, and according to the fault type which needs to be troubleshot currently, allocating the work order task to a target processing node, the target processing node being associated with a resource entity with a corresponding fault type processing capability in an operation and maintenance resource pool; processing the work order task through the target processing node; and monitoring the processing state of the work order task, and executing a supervision operation instruction when the processing state meets a preset abnormal condition.
Owner:CHINA TOWER CO LTD GUANGXI ZHUANG AUTONOMOUS REGION BRANCH

Crown block track surface cleaning device in semiconductor workshop

PendingCN121755485Aavoid instabilityavoid randomnessDirt cleaningCleaning using gasesDust controlSemiconductor factory
The invention discloses a crown block track surface cleaning device in a semiconductor workshop, which comprises a bottom plate, a frame is arranged on the bottom plate, and a first negative pressure fan and a second negative pressure fan are arranged in the frame; a negative-pressure air draft longitudinal cylinder extending upwards is arranged in the frame, and the bottom end of the negative-pressure air draft longitudinal cylinder is connected with a first negative-pressure fan and a second negative-pressure fan through pipelines in a communicating mode. A negative pressure air draft transverse barrel is arranged at the top end of the negative pressure air draft longitudinal barrel, the negative pressure air draft transverse barrel is vertically arranged at the top end of the negative pressure air draft longitudinal barrel, and the negative pressure air draft transverse barrel is communicated and connected with the negative pressure air draft longitudinal barrel; the two ends of the negative-pressure air draft transverse barrel are provided with dust removal modules which protrude downwards and are matched and symmetrical, and each dust removal module comprises a dust removal head cavity. Through non-contact suspended positive and negative air passage cleaning, efficient and automatic cleaning of the crown block rail surface of the semiconductor workshop is achieved, and the cleanliness of the semiconductor production environment is effectively improved.
Owner:DONGGUAN VILLO ENVIRONMENTAL PROTECTION INC

Parking space addressing method and device, camera control method and device, computer equipment and readable storage medium

The invention relates to a parking space addressing method, a camera control method and device, computer equipment, a computer readable storage medium and a computer program product. The parking space addressing method comprises the following steps: performing numbering processing on each rod management group in a target parking area to obtain a group number corresponding to each rod management group; according to the position information of each multifunctional rod of each rod management group, determining a sorting sequence number corresponding to each multifunctional rod of each rod management group; for any multifunctional rod, according to the pixel coordinate of each parking space marking frame associated with any multifunctional rod, determining a sorting sequence number corresponding to each parking space associated with any multifunctional rod; and generating a parking space identifier corresponding to each parking space according to the sorting sequence number corresponding to each parking space in the target parking area, the sorting sequence number corresponding to each associated multifunctional rod and the group number to which the multifunctional rod belongs. By adopting the method, the intelligence of a parking space addressing mode can be improved.
Owner:SHENZHEN MIRACLE WISDOM NETWORK CO LTD

Method for assessing the risk of tuberculosis under combined exposure to extreme weather and atmospheric pollution

PendingCN122158182AComprehensively reveal the characteristics of changesreveal changing characteristicsMedical data miningEpidemiological alert systemsExtreme weatherAtmospheric sciences
The application provides a method for evaluating the risk of tuberculosis under the combined exposure of extreme weather and air pollution, comprising the steps of: obtaining meteorological data, air pollution data and tuberculosis incidence data of a target area within a target period; identifying extreme weather events based on the meteorological data, identifying air pollution events based on the air pollution data, and identifying combined exposure events based on the meteorological data and the air pollution data, wherein the combined exposure events are combinations of the extreme weather events and the air pollution events that occur within a time interval less than a preset threshold and are spatially co-located; based on the spatial co-location, constructing a regression model with the number of cases in the tuberculosis incidence data as the dependent variable and whether the combined exposure event occurs as the binary explanatory variable, and evaluating the influence of the combined exposure event on the risk of tuberculosis. The application realizes high-precision quantitative evaluation of the risk of tuberculosis under the combined exposure of extreme weather and air pollution, and provides a scientific basis for early warning and precise prevention and control.
Owner:天津市结核病控制中心 +1

Geological multi-source constraint adaptive full waveform inversion method and system

The present application provides a kind of geologic multi-source constraint adaptive full waveform inversion method and system, constructs multiple complementary constraint norms, organically fuses multiple modal prior information, forms unified multi-source constraint framework, compared with traditional single type prior constraint, the present application can more comprehensively utilize available prior information, guide inversion to the direction that both conforms to geophysical data and geological understanding converges;While introducing adaptive regularization parameter strategy based on Bayes theory, realize the adaptive update of weight factor, avoid the subjectivity and randomness caused by the dependence of regularization parameter on experience selection in traditional method, make the inversion result more stable, and do not need tedious manual parameter adjustment, can dynamically adjust the constraint strength according to the data noise level, enhance the guiding role of prior constraint in low signal-to-noise ratio, more rely on observation data in high signal-to-noise ratio;At the same time, through the combination of model compression and forward simulation calculation, the calculation efficiency is greatly improved.
Owner:POWERCHINA ZHONGNAN ENG

Tunnel surrounding rock displacement time series curve prediction method based on dynamic bayesian network

This invention belongs to the field of tunnel surrounding rock stability analysis, specifically disclosing a method for predicting tunnel surrounding rock displacement time series curves based on dynamic Bayesian networks. The method includes: S1. Discretizing influencing factors and surrounding rock displacement to establish a sample library; S2. Improving the construction method of the interpretive structure model to establish an interpretive structure model; S3. Constructing a static Bayesian network model for predicting tunnel surrounding rock displacement based on the interpretive structure model; S4. Improving the structure construction method and parameter learning method of the dynamic Bayesian network model; S5. Constructing a dynamic Bayesian network model inference method to establish a dynamic Bayesian network model; S6. Predicting the tunnel surrounding rock displacement time series curve. This invention optimizes the construction methods of the interpretive structure model, static Bayesian network model, and dynamic Bayesian network model, enabling the determination of the dynamic development of surrounding rock displacement before tunnel construction. This has significant guiding value for tunnel site selection, advanced support, construction method selection, and engineering defect diagnosis.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Arrangement method, device and equipment of underground mine blast hole and storage medium

The application discloses a method, device and equipment for arranging blast holes in an underground mine and a storage medium. The method comprises: obtaining blast hole arrangement parameters, which represent parameter requirements related to blasting in the underground mine; generating a blast hole feasible region based on blast hole design accuracy, coordinates of a core point of a drilling machine, the blast hole arrangement parameters and a blasting space range of the underground mine, the blast hole feasible region comprising blast hole positions of a plurality of blast holes; obtaining a blast hole arrangement scheme based on the blast hole feasible region and a set blasting optimization model; and wherein the blasting optimization model takes the sum of error values between hole bottom distances of the blast holes and average hole bottom distances as an optimization target, and the blast hole arrangement scheme comprises target blast hole positions selected from the blast hole feasible region. The blast holes in the underground mine can be optimally arranged in combination with blasting boundary space constraints and parameter requirements related to blasting, thereby maximizing the uniformity of hole bottom distances between the blast holes.
Owner:SHENZHEN ZHONGJIN LINGNAN NONFERROUS METALS CO LTD FANKOU LEAD-ZINC MINE +1

A method for controlling sustainable and stable output of grid-connected output power of a wind power generation system

ActiveCN119834285Bavoid randomnesssmooth randomnessData processing applicationsEnergy storageNew energyFilter algorithm
The present application relates to a kind of wind power generation system grid-connected output power sustainable stable output control method, belong to wind power generation technical field.By improved adaptive moving average filtering algorithm, according to the fluctuation characteristics of wind power prediction value, obtain the optimal time-sharing period grid-connected power that satisfies the power fluctuation constraint of different time periods, effectively solve the stable output problem caused by wind power fluctuation;By complete empirical ensemble mode decomposition algorithm, power distribution and capacity configuration are carried out to energy storage, suppress the randomness of new energy output, realize the sustainable stable output of wind power generation in different time periods, effectively overcome the influence of wind power output power fluctuation on power grid operation safety and power quality;By leading fuzzy correction method, charge and discharge power of hybrid energy storage system is corrected, reduce wind farm grid-connected fluctuation, improve the cycle life of energy storage system;Time-sharing period sustainable stable wind power output power effectively reduces the configuration cost of energy storage system.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Emergency plan management method, storage medium, program product and electronic device

PendingCN122264565AImprove support capabilitiesImprove management efficiencyInstrumentsEmergency planData management
The embodiment of the present specification discloses an emergency plan management method and related equipment, and relates to the field of data management. The method provided by the embodiment of the present specification comprises: obtaining drilling information, result verification information and change information of an emergency plan; wherein the drilling information indicates the historical drilling execution condition of the emergency plan, the verification result information at least includes function verification result and transaction verification result, and the change information includes change record of environment elements relied on by the emergency plan; according to the drilling information, the result verification information and the change information, the validity state of the emergency plan is determined; and according to the validity state of the emergency plan, the emergency plan is managed. Based on the objective and quantifiable evaluation system combined with the information of multiple dimensions, the validity state of the emergency plan can be evaluated reliably and credibly, and the validity state of the emergency plan is periodically and automatically detected, so as to ensure the guarantee ability of the emergency plan.
Owner:ALIPAY (HANGZHOU) INFORMATION TECH CO LTD

Intelligent control method and device for multi-pick and mixed stacking, computer device and storage medium

ActiveCN121672073BAvoid transit timeavoid waiting timeWrappingTotal factory controlLogistics managementIntelligent control
The application discloses an intelligent control method and device for multi-warehouse and mixed stacking, computer equipment and a storage medium. The method comprises the following steps: receiving an outbound order and analyzing the same to generate system state snapshot information; planning the outbound sequence and stacking position of goods according to the system state snapshot information and a preset heuristic rule, and generating a stacking task allocation scheme; controlling a shuttle vehicle to take the goods out of the warehouse according to the planned sequence and transport the goods to the designated position according to the stacking task allocation scheme; transporting an empty pallet to the position and lifting the empty pallet to the stacking height according to the stacking task allocation scheme; stacking the goods on the empty pallet according to the stacking task allocation scheme; and after the stacking is completed, wrapping and packaging the pallet, and transporting the packaged pallet to the target position. The method of the application can improve the overall work efficiency, intelligent degree and collaborative performance of the warehouse logistics system.
Owner:NEW TREND INT LOGIS TECH

A defect detection system and a defect detection method

The application discloses a kind of defect detection systems, including detection device and image processing module, wherein the detection device, including object table, telecentric light source, horizontal light source, coaxial light source, camera, the object table is used to load workpiece, and the workpiece includes through-hole workpiece and non-through-hole workpiece;When the telecentric light source is opened, the camera obtains the projection image of the workpiece.The application is replaced by machine, that is, through automatic non-contact optical detection system, appearance detection and size measurement are detected to flange, and unqualified products are removed.Optical image detection replaces human eye, without visual requirements, with guaranteed definition, and also avoids the problems of personal injury and reduced efficiency caused by long-term labor of artificial;And through machine determination, consistency is strong, avoids randomness, and guarantees the overall quality of flange.
Owner:ZHEJIANG SHUANGHONG TECH CO LTD

A dry-type air-core reactor optical fiber sensing noise reduction method based on improved SVD

The application discloses a kind of based on improved SVD's dry-type air-core reactor optical fiber sensing noise reduction method, and improved SVD is proposed to be applied to distributed optical fiber sensing detection dry-type air-core reactor fault alarm system.Establish the backscattering model of temperature measurement system, add Gaussian white noise and utilize traditional threshold denoising and improved SVD denoising analysis signal-to-noise ratio, provide theoretical basis for experiment.Under existing conditions in laboratory, collect original anti-Stokes light with temperature information and Stokes light and obtain ratio data matrix by ratio, after remodeling data matrix, singular value decomposition reconstruction is carried out, then after remodeling matrix, the ratio signal with temperature information after denoising is obtained, into two-way demodulation formula to obtain demodulation temperature information, finally according to demodulation error, compare denoising effect, the present application can effectively reduce demodulation temperature error by noise reduction algorithm, improve system temperature measurement precision, compared with traditional wavelet denoising, improve system signal-to-noise ratio, avoid threshold selection uncertainty and other problems.
Owner:NORTH CHINA ELECTRIC POWER UNIV

Method for evaluating reservoir quality of tight sandstone reservoir and related equipment

The invention relates to the field of petroleum geological exploration reservoir evaluation, and discloses a compact sandstone reservoir quality evaluation method and related equipment, and the method comprises the following steps: determining reservoir indexes according to compact sandstone reservoir characteristics; determining a weight through an entropy weight method based on the reservoir indexes; constructing a target vector function by using an ideal point method based on the reservoir indexes; substituting the weights into a target vector function to obtain positive and negative ideal solutions; and constructing a reservoir quality model according to the positive and negative ideal solutions, and evaluating the reservoir quality of the tight sandstone reservoir based on the reservoir quality model. According to the method, the problem that the tight sandstone reservoir is difficult to evaluate is effectively solved, and a tight sandstone reservoir quality evaluation technology is formed.
Owner:CHINA NAT PETROLEUM CORP +1

Method for replacing self-explosion glass insulator with assistance of heavy-load unmanned aerial vehicle

PendingCN121965349Aavoid randomnessReliable and safe buffer spaceLoad-engaging elementsApparatus for overhead lines/cablesUncrewed vehicleTower
The invention discloses a method for assisting in replacing a self-explosion glass insulator by a heavy-load unmanned aerial vehicle, and relates to the technical field of high-voltage transmission line maintenance. The traditional power transmission line self-explosion glass insulator replacement operation is high in labor intensity and low in efficiency, an unmanned aerial vehicle is only used for transporting materials, and core hooking still depends on manpower. According to the method, pre-assembled wire tightening tools and related material tools are hoisted to the side of an operation point through a heavy-load unmanned aerial vehicle and are accurately positioned, personnel on a tower connect the upper ends of the tools and the iron tower, then the unmanned aerial vehicle is controlled to slowly descend, the tool load is actively and stably transferred to an iron tower structure, and then the unmanned aerial vehicle is separated; and the lower end of the tool is connected with the wire by personnel to replace the insulator. By upgrading the heavy-load unmanned aerial vehicle into the aerial operation platform, mechanization of high-altitude hooking and load transfer links of the wire tightening system is realized, the labor intensity and safety risk of personnel are reduced, and the replacement efficiency of the self-explosion glass insulator is improved.
Owner:ZHEJIANG ELECTRIC TRANSMISSION & TRANSFORMATION ENG CO +1

Page generation method and device, apparatus, and medium

The application relates to a page generation method and device, equipment and a medium, and the method comprises the following steps: in response to a page generation event, determining table structure metadata of a target data table corresponding to the event, wherein the table structure metadata comprises field types, index information and field annotation information; determining target query fields according to the index information, determining front-end component types corresponding to each target query field based on the field types of the target query fields and preset component mapping rules; generating query configuration and display configuration according to the front-end component types and the field annotation information, wherein the query configuration is used for defining a query component containing the target query fields, and the display configuration is used for defining a data table component with the field annotation information as a table header; and rendering and generating a target page according to the query configuration and the display configuration. The application automatically reads database table structure metadata and generates a target page in a configuration-driven manner, thereby realizing automatic construction from a data table to a functional page.
Owner:GUANGZHOU HUANJUMARK NETWORK INFORMATION CO LTD

A method for calculating additional stress of roadbed soil body by using bag pipe method for grouting lifting

ActiveCN121562226Bavoid randomnessThe derivation process is scientific and rigorousGeometric CADDesign optimisation/simulationStress distributionSoil science
The present application relates to geotechnical engineering and road engineering technical field, especially a kind of additional stress calculation method suitable for capsule pipe method grouting lifting roadbed soil body, based on the superposition principle in elasticity, the soil stress field caused by capsule pipe grouting is decomposed into the classic Lame solution (field B) of the borehole under internal pressure in infinite body and the correction stress field (field C) introduced to eliminate the stress of free surface;By establishing rectangular coordinate system, the stress component under polar coordinates is converted into rectangular coordinate form, and the stress field caused by vertical and shear distribution load is calculated respectively by using Flamant solution and horizontal point load influence function under plane strain condition;Finally, the additional stress distribution caused by capsule pipe grouting in semi-infinite soil body is obtained by superimposing the stress solution of field B and field C.The present application has the advantages that the coupling effect of borehole boundary and free surface is considered, it is suitable for stress prediction and control in roadbed lifting engineering, and it has the advantages of rigorous theory and high calculation precision.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Bonding centering device for rock direct tensile test and operation method

PendingCN121994585AEnsure consistent alignmentavoid randomnessMaterial strength using tensile/compressive forcesDirect tension testPlate pressure
The invention discloses a bonding centering device for a rock direct tensile test and an operation method, and the device comprises a clamping plate main body which comprises a clamping plate pressure head and a clamping plate base, and the clamping plate pressure head and the clamping plate base are connected through a connecting rod and are coaxially arranged; the centering clamper is mounted between the clamping plate pressure head and the clamping plate base and is used for clamping and centering a rock sample before bonding; wherein the centering clamping device comprises a limiting plate capable of rotating in the annular direction and a plurality of blades capable of swinging in the radial direction, and the limiting plate and the blades are arranged in a linkage mode, so that when the limiting plate rotates in the annular direction, all the blades are driven to synchronously and radially gather together so as to clamp the rock sample and enable the axis of the rock sample to be aligned with the axis of the clamping plate main body. According to the invention, the rock sample can be accurately aligned with the axis of the puller, and the test data is real and reliable.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

A method for estimating jrc based on hausdorff distance

This invention discloses a method for JRC estimation based on Hausdorff distance. The method involves extracting the coordinates of 10 standard profiles of Barton's structural surfaces with a sampling interval of dx. Based on the extracted x and y coordinate data, the cumulative slope of each standard profile is calculated, forming a cumulative slope data sequence of standard curves. The structural surface curves are then measured in the field, and the coordinates of the measured curves are extracted with a sampling interval of dx. The cumulative slope of the measured curves is calculated, forming a cumulative slope data sequence of measured data. The Hausdorff distance between the cumulative slope of the measured curves and the cumulative slope of the standard curves is calculated. The standard profile of the structural surface most similar to the measured curve is identified, and its corresponding JRC value is assigned to the measured curve, ultimately estimating the JRC value of the measured curve. This invention achieves JRC value estimation based on the self-similarity of the cumulative slope of the curves, avoiding the arbitrariness and subjectivity in determining the JRC value caused by comparing visual observation with standard profiles.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD

Data-driven civil aircraft interior design expert self-confident modeling method and system

PendingCN121958746ALower acquisition costsAccurately portray differences in judgmentComplex mathematical operationsDesign–ExpertEngineering
The invention belongs to the technical field of group decision support and consensus modeling, and discloses a data-driven civil aircraft interior design expert self-confidence modeling method and system. Comprising the following steps: respectively constructing initial scoring matrixes corresponding to experts; in the scheme dimension and the index dimension, performing normalization processing on the initial score matrix of the bit expert to obtain a scheme dimension matrix and an index dimension matrix corresponding to the bit expert; based on the scheme dimension matrix and the index dimension matrix, respectively calculating scheme dimension information entropy and index dimension information entropy of each expert, respectively inputting the scheme dimension information entropy and the index dimension information entropy into a pre-constructed self-confidence degree evaluation model, and dynamically evaluating the expert self-confidence degree of each expert; according to the method, the structural deviation in score distribution can be identified, and the judgment difference of experts in different score directions can be accurately described, so that the explanatory force and the distinction degree of the self-confident degree of the experts are improved, and the method has good universality and expandability.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

An urban river network function analysis method combined with river ecological sensitivity

PendingCN122529534AAvoid the subjective bias of artificial empowermentavoid randomness
The application relates to the technical field of urban water resource management, and discloses a city river network function analysis method combined with river ecological sensitivity. The method comprises the following steps: collecting multi-source spatial influence factor data, obtaining weight coefficients through standardization processing and landscape scale optimization; calculating the minimum cumulative resistance difference of ecological protection and urban expansion, and constructing a comprehensive resistance surface; constructing a multi-gradient river buffer zone, determining an effective influence distance, and calculating a river section ecological sensitivity index; introducing the ecological sensitivity index as a dynamic weight, constructing a closeness centrality and connectivity strength weight function for dynamic weighted adjustment, and generating a weighted river network topology network; calculating node degree, weighted closeness centrality and network connectivity indexes, generating a partition statistical graph, and identifying a risk river section; implementing intervention simulation on the risk river section, determining a key treatment threshold based on a treatment proportion and a network global efficiency, and improving the objectivity of city river network function evaluation and the precision of treatment decision-making.
Owner:ZHENGZHOU UNIV +1

Method and system for performance regulation of recycled concrete based on aggregate gradation optimization

The application relates to the technical field of performance regulation of recycled concrete, and relates to a recycled concrete performance regulation method and system based on aggregate gradation optimization, which comprises the following steps: confirming a recycled concrete performance regulation environment based on a recycled concrete performance regulation instruction, pretreating engineering slag soil by using an aggregate pretreatment unit, grading the coarse aggregate sand and the fine aggregate sand based on an aggregate gradation optimization unit, pouring recycled lightweight aggregate concrete mixture by using a curing control unit, detecting the compressive strength, apparent density and thermal conductivity of the recycled concrete test piece by using a performance evaluation and regulation unit, and comparing and analyzing the actually measured performance index set with the preset target performance index set, so that the recycled concrete performance regulation of the engineering slag soil is realized based on the regulated recycled concrete. The application can improve the accuracy, efficiency, resource utilization rate and engineering applicability of the recycled concrete performance regulation.
Owner:GUANGZHOU PEARL RIVER DECORATION ENG CO

A method for depicting and quantitatively representing mining cracks of a goaf roof

ActiveCN121541285BAchieve unified mathematical descriptionImprove interpretation rateMining devicesCharacter and pattern recognitionLithologyCorrelation coefficient
The application discloses a kind of goaf roof mining fracture delineation quantitative characterization method, belong to mine hydrogeology and water prevention and control engineering technical field, by network parallel electric method CT field monitoring obtains the development height of guide crack zone, carries out similar material physical simulation and carries out gray scale and binary processing to image, extracts void fraction discrete data sequence, establishes the coupling equation including exponential decay base item, multi-peak gaussian item and constant background value, introduces subsection dynamic attenuation coefficient to describe the difference of stress dissipation in different rock strata, continuously revises initial strength at lithology mutation interface, adopts damping least square method to carry out parameter inversion, with root mean square error and correlation coefficient as evaluation index, output characteristic equation for water accumulation evolution prediction and water channel identification.The application has high fitting precision and clear physical meaning, and can provide reliable parameter support for water prevention and control engineering design.
Owner:CHINA UNIV OF MINING & TECH

Method, system, device and medium for analyzing vertical bearing capacity of horizontal retaining structure

PendingCN122616112AImprove analysis accuracyReally reflect the actual stress state
The application provides a horizontal retaining structure vertical bearing capacity analysis method, system, device and medium, relates to the foundation pit engineering and slope supporting technical field, and the method comprises the following steps: obtaining the earth pressure coefficient according to the soil body parameters of the upper and lower soil layers of the foundation pit excavation surface; determining the inflection point depth according to the earth pressure coefficient and combining the weighted average unit weight of the upper and lower soil layers of the foundation pit excavation surface respectively; dividing the support pile of the horizontal retaining structure according to the inflection point depth, determining the positive friction resistance area and the negative friction resistance area of the support pile, and obtaining the positive friction resistance of the positive friction resistance area and the negative friction resistance of the negative friction resistance area; determining the end resistance of the support pile according to the pile body diameter of the support pile and the end resistance characteristic value of the end soil layer of the support pile; and determining the vertical bearing capacity of the horizontal retaining structure according to the positive friction resistance and the negative friction resistance, and combining the end resistance. The application improves the analysis precision of the vertical bearing capacity of the horizontal retaining structure.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED

Parameter Optimization Method for Double-Anchor Disc Helical Anchors Based on Plastic Zone Evolution

This invention discloses a parameter optimization method and system for a dual-anchor spiral anchor based on the evolution of the plastic zone, relating to the field of geotechnical engineering. The method includes: constructing a dynamic model of the spiral anchor installation process; extracting the soil state parameter field after spiraling in and mapping it to a static bearing capacity model; performing loading simulation; extracting the topological features of the plastic zone using persistent homology theory and generating persistent barcodes to determine the interference modes of the upper and lower anchor discs; and iteratively optimizing the geometric parameters based on the interference modes. This invention addresses the problems of existing designs neglecting installation disturbance effects and the difficulty in objectively identifying the failure mechanism of plastic zone penetration, achieving precise parameter design that balances bearing capacity safety and construction economy.
Owner:ANHUI MINGSHENG ELECTRIC POWER DESIGN CO LTD

An automated loading system

This invention discloses an automated loading system, comprising: initializing loading parameters and rules based on orders; a forklift delivering material pallets to the depalletizing station; LiDAR scanning the vehicle and generating point cloud data on-site, and obtaining the vehicle body and loading position coordinates through AI models and algorithms; 3D vision guiding a column-type robot for depalletizing; a telescopic conveyor belt transporting the pallets; scanning and removing abnormal pallets during transport; and 3D vision guiding the loading mechanism to complete loading according to the rules. The system also includes a task dashboard, a step-crossing module, and auxiliary modules such as a driver's cab, achieving automated and intelligent loading, and improving efficiency and quality.
Owner:GUANGDONG XG INTELLIGENT SYST CO LTD

A mold for controlling the application rate of diamond powder

ActiveCN224591749Uavoid randomnessDistribution density is consistent
The application discloses a mold for controlling the coating rate of corundum, which comprises a frame, two long top ends of the frame are provided with sliding grooves, clamping blocks are clamped in the sliding grooves, a crossbeam is arranged on the upper ends of the two clamping blocks, a positioning frame is fixedly installed on one side of the crossbeam facing the frame, a telescopic plate is detachably connected to one end of the positioning frame away from the crossbeam, a scraper is fixedly connected to one end of the telescopic plate away from the positioning frame, a grid is fixed to the inner bottom wall of the frame, and a laser line auxiliary device is arranged on the crossbeam. The grid on the inner bottom wall of the frame divides the construction area into standardized units, the scraper at the lower end of the crossbeam forms a mechanical coating mechanism, the randomness of manual scattering is avoided, the uniformity of the scraper is ensured, and the distribution density of the corundum in each area of the ground is ensured to be consistent.
Owner:SHAANXI NO 7 CONSTR ENG CO LTD

Grain cleaning device for grain processing

The utility model discloses a grain cleaning device for grain processing, which comprises a cleaning barrel, a stirring piece, supporting legs and a stirring motor, the supporting legs are fixedly mounted at the bottom of the cleaning barrel, and the stirring motor is fixedly mounted in the middle of the bottom of the cleaning barrel. The floating object cleaning assembly is arranged at the top in the cleaning barrel, the cleaning plate, the cleaning groove, the moving assembly and the collecting assembly are arranged, the cleaning plate moves through the moving assembly, the water surface area in the cleaning barrel can be more efficiently covered, and floating objects on the water surface are gradually pushed to the cleaning groove in the front-back reciprocating movement process of the cleaning plate; the floating objects slide into the connecting hopper along the cleaning groove and then enter the collecting box through the connecting pipe, automatic collection of the floating objects is achieved, and the problem that after cleaning is completed, an operator has to spend a large amount of time and energy to manually salvage the floating objects on the water surface due to the fact that a cleaning and collecting structure for the cleaned floating objects on the water surface is not arranged is solved.
Owner:高飞 +4