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119 results about "Parametric simulation" patented technology

Power transmission line lightning arrester fault defect analysis method and system

The invention discloses a power transmission line lightning arrester fault defect analysis method and system, and relates to the technical field of intelligent operation and maintenance of power equipment, and the method comprises the following steps: obtaining a lightning arrester simulation model; simulating a preset defect working condition by adjusting parameters of the lightning arrester simulation model, executing simulation for a plurality of times, and constructing a defect state feature set; acquiring multi-dimensional time sequence monitoring data during a single discharge action period of the lightning arrester, acquiring equivalent strength data based on the deep learning model, and accumulating the equivalent strength data to obtain accumulated equivalent action strength; performing feature similarity matching on the defect state feature set and the action feature vector of the multi-dimensional time sequence monitoring data, and identifying the defect type of the lightning arrester; and carrying out proportion calculation on the accumulated equivalent action intensity and preset tolerable action intensity, and if a preset alarm condition is met, outputting alarm information. The method is used for solving the problems that a traditional lightning arrester monitoring pair lacks structural modeling, and accurate defect evaluation and dynamic early warning are difficult to achieve.
Owner:WUHU POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER

Insulating material surface arc ablation resistance simulation method based on magnetohydrodynamics

The invention provides an insulating material surface arc ablation resistance simulation method based on magnetohydrodynamics, and belongs to the field of insulating material performance detection. The method comprises the following steps: establishing an insulating material surface arc ablation resistance model; constructing a magnetohydrodynamic control equation set; setting boundary conditions of the model; and iteratively solving the magnetohydrodynamic control equation set through finite element simulation software to obtain a temperature distribution diagram of the insulating material under different arc ablation times, and comparing the temperature distribution diagram with a TGA curve of the insulating material to judge the arc ablation resistance of the insulating material. According to the invention, the power-frequency alternating-current high-voltage arc and the insulating material are used as simulation objects, engineering practice is better met, the surface arc ablation resistance process of any insulating material can be simulated by changing the physical characteristic parameters of the insulating material, and the TGA curve of the material is introduced to judge the arc ablation resistance of the insulating material. And technical support is provided for high-voltage switch equipment insulating material type selection.
Owner:HEFEI UNIV OF TECH +1

Hemodialysis teaching system based on AI intelligent pushing

The invention relates to the technical field of hemodialysis teaching systems, and discloses a hemodialysis teaching system based on AI intelligent pushing. The system comprises an operation feature extraction module, an instrument positioning analysis module, an operation step analysis module and a teaching strategy generation module. Operating a feature extraction module to obtain a hemodialysis teaching video stream, and extracting multi-modal features containing an instrument movement track sequence and physiological parameter simulation data; an instrument positioning analysis module calls a pre-training network for positioning and generates a coordinate data set containing instrument types and three-dimensional position coding mapping; the operation step analysis module analyzes the time sequence characteristics by means of an action segmentation model, and generates a result containing step integrity and an error operation mark; and the teaching strategy generation module inputs a result into the intelligent push model, plans a personalized teaching path, outputs a knowledge point sequence containing a student ability model and dynamic teaching elements of operation difficulty parameters, and assists the hemodialysis teaching to be precise and personalized.
Owner:晋江市医院(上海市第六人民医院福建医院)

Perforation parameter optimization method and device for carbon dioxide injection well and electronic equipment

The invention provides a carbon dioxide injection well perforation parameter optimization method and device and electronic equipment, and the method comprises the steps: carrying out the standardization processing of geological and logging data, and constructing a multi-dimensional data set comprising lithology, porosity, permeability, crack parameters and a ground stress field; a three-dimensional digital twinborn model is constructed based on the data set, and reservoir heterogeneity and fracture network distribution are restored; on the basis of the digital twinborn model, performing multi-physics field coupling simulation including carbon dioxide migration simulation, shaft stress distribution simulation and long-term corrosion prediction; based on a multi-objective optimization algorithm, with the effective wave and volume of the carbon dioxide, the integrity coefficient of the shaft and the anti-channeling safety coefficient as objectives, an optimal perforation parameter combination is screened; and outputting a visual report including perforation parameters, simulation results and risk assessment. Digital twinning, multi-physics field simulation and multi-objective optimization are deeply fused, and a set of complete, accurate and efficient perforation parameter optimization solution from data to decision is formed.
Owner:HUANENG CLEAN ENERGY RES INST +1

Ice rink re-paved ice layer thickness prediction method, system and equipment based on digital twinning

The invention discloses an ice rink re-paving ice layer thickness prediction method, system and equipment based on digital twinning, and relates to the technical field of ice rink ice surface thickness. The method comprises the following steps: step 1, constructing a digital twinborn model of the re-paved ice surface of the ice pouring vehicle through COMSOL numerical simulation software, and mapping and fusing the digital twinborn model of the re-paved ice surface of the ice pouring vehicle and real-time environmental data to generate a dynamic digital twinborn body; 2, real-time operation parameters of the ice pouring vehicle are input into the dynamic digital twin body, operation is simulated, and the simulated icing thickness is output; and 3, inputting the simulated icing thickness, the real-time operation parameters of the ice pouring vehicle and the real-time environment data into the trained machine learning model to obtain the thickness of the re-laid ice layer. According to the method, the icing thickness of the re-paved ice surface of the ice pouring vehicle corresponds to the twin model through the digital twin technology, so that the re-paved ice layer thickness prediction is more accurate and comprehensive, the re-paved ice layer thickness prediction is realized, the risk of different ice layer thicknesses is reduced, the waste of water resources is avoided, and the energy consumption is saved.
Owner:HARBIN UNIV OF SCI & TECH

Multi-layer wave-absorbing material design method based on deep learning and Bayesian optimization

The invention discloses a multilayer wave-absorbing material design method, system, medium and equipment, and the method comprises the steps: building a multilayer wave-absorbing material model through electromagnetic simulation software, taking a radar cross-sectional area RCS as an optimization target, and controlling FEKO to be within a specified target frequency band; sampling electromagnetic parameters in a value range by adopting a Latin hypercube sampling algorithm, performing parameterized simulation on the multilayer wave-absorbing material model, extracting radar cross-sectional area (RCS) values to form a parameter-RCS data set, generating an electromagnetic parameter-RCS data set, training a convolutional neural network, and obtaining a multi-layer wave-absorbing material model; establishing a nonlinear mapping model from the electromagnetic parameters to a radar cross-sectional area (RCS); embedding a proxy model obtained by training into a Bayesian optimization framework, applying an expected improved function to guide a search space, automatically optimizing an electromagnetic parameter combination, and performing FEKO full-wave simulation verification; if the RCS value of the optimization result is lower than the preset threshold value, iteration continues until the performance requirement is met, and the optimal electromagnetic parameter combination is output.
Owner:XI AN JIAOTONG UNIV

Deep foundation pit monitoring method based on BIM-physical model hybrid simulation

The invention provides a deep foundation pit monitoring method based on BIM-physical model hybrid simulation. The method comprises the steps that real-time monitoring data and BIM model parameters of a deep foundation pit are collected; inputting a first model parameter in the BIM model parameters as an initial geometric condition into the initial physical model for simulation calculation to obtain first simulation data, and verifying the first simulation data based on the real-time monitoring data to obtain a verification result index; optimizing the soil mass mechanical parameters in the initial physical model based on the verification result index until the verification result index output in the optimization process meets a preset requirement, and obtaining an optimized physical model; simulating the construction process of the deep foundation pit on the basis of the optimized physical model in combination with a second model parameter in the BIM model parameters, and outputting second simulation data; and performing monitoring and early warning on the deep foundation pit based on the deep foundation pit knowledge graph in combination with the real-time monitoring data and the second simulation data to obtain a monitoring and early warning result. According to the invention, comprehensive monitoring of the deep foundation pit is realized.
Owner:URUMQI HERUN TECH DEV CO LTD

Thermal-mechanical coupling behavior numerical simulation system for reinforced concrete structure

The invention discloses a thermal-mechanical coupling behavior numerical simulation system for a reinforced concrete structure, and particularly relates to the field of constructional engineering, and the system comprises a heat conduction analysis module, a mechanical behavior analysis module, a bond slip behavior analysis module and a simulation calibration module. The heat conduction analysis module simulates the temperature field change of the concrete in the fire disaster process by defining temperature related parameters of the concrete; the mechanical behavior analysis module is used for simulating nonlinear mechanical behaviors of concrete and analyzing strength degradation, crack propagation and plastic deformation of the concrete at high temperature in combination with a temperature-dependent material model; and the bond slip behavior analysis module is used for setting a non-linear contact behavior between the reinforcing steel bar and the concrete. According to the invention, comprehensive simulation of reinforced concrete under high-temperature conditions such as fire disasters and the like is realized, and the strength degradation and crack propagation of the concrete and the bond slip behavior of the reinforcing steel bars and the concrete can be accurately predicted in combination with a temperature field and a mechanical field.
Owner:YUNNAN IND & COMMERCIAL COLLEGE

Method and system for predicting evolution law of nickel-based superalloy laser welding solidification structure

The invention belongs to the technical field of microstructure simulation in the solidification process, and particularly relates to a nickel-based superalloy laser welding solidification structure evolution law prediction method and system.The method comprises the steps that simulation parameters are determined, a macroscopic temperature field is simulated to obtain molten pool temperature field data, a cellular automaton model is constructed, and grids are divided; initializing state variables such as component concentration and solid-phase fraction; coupling temperature field data, solving an optimized solute diffusion and redistribution equation to obtain a concentration field, updating a solid phase fraction according to local supercooling drive, and marking grain growth; counting a solid-phase fraction, and updating a solid-phase position; and judging whether the temperature of the cladding layer is lower than the solidus temperature and the solid fraction reaches a complete solidification threshold value or not, and if yes, outputting weld microstructure and target element concentration data. According to the method, the evolution law of the welding macroscopic temperature field and the structure and solute concentration field can be effectively predicted, experiments are replaced with numerical simulation, the cost is reduced, the technical blank is filled up, and reliable support is provided for precise regulation and control of the nickel-based high-temperature alloy laser welding process.
Owner:SUZHOU UNIV

Oil and gas development favorable area prediction method based on Winsored particle size mean value curve simulation

The invention discloses an oil and gas development favorable area prediction method based on Winsored particle size mean curve simulation, and the method comprises the following steps: based on laser particle size experiment data, employing a Winsored algorithm to process rock particle size data, removing abnormal interference values, and simulating a well hole particle size mean longitudinal curve through inputting logging response parameters by means of an XLSTM-Transform hybrid neural network model; selecting a shear modulus density and a longitudinal and transverse wave velocity ratio as sensitive attribute parameters of a granularity mean value in combination with seismic data, and forming two sets of three-dimensional attribute data volumes in combination with waveform structure inversion; according to the method, model training is carried out on the nonlinear relation between the particle size mean value and the seismic sensitive attribute parameters based on a machine learning method, and finally a Winsored particle size mean value inversion body is formed, so that the spatial distribution rule of a relatively large particle size reservoir can be defined, and effective prediction of a development favorable area is realized.
Owner:HAINAN BRANCH OF CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD

Power grid modeling simulation system and method

The invention provides a power grid modeling simulation system and method, and relates to the technical field of power systems. The system comprises a power grid topological structure modeling unit used for constructing a topological structure model of a power grid according to parameter information of power grid components in the power grid; the topological structure model is used for indicating a connection relationship and layout information between power grid components in the power grid; the dynamic behavior simulation unit is used for simulating the dynamic behavior of the power grid based on the topological structure model and the operation influence parameters to obtain simulation information; the state evaluation unit is used for monitoring and evaluating the state of the power grid according to the topological structure model and the simulation information to obtain state evaluation information; and the decision support unit is used for generating optimization decision information of the power grid based on the simulation information and the state evaluation information. According to the invention, high-precision simulation and optimal scheduling of the complex operation condition of the power grid are realized, and the safety and stability of the power grid are improved.
Owner:MEIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORP

Determination method and system for deformation and warping parameters of injection molding plate

The invention discloses a method and a system for determining deformation and warping parameters of an injection molding plate. The method comprises the following steps: acquiring simulation deformation data reflecting the deformation and warping degree of the injection molding plate; judging whether the change trend of the simulation deformation data relative to the standard deformation data is the same and meets a measurement index or not; if the change trends are the same and meet the measurement index, storing the first deformation warping parameter; if the change trends are the same but do not meet the measurement index, modifying a first deformation warping parameter corresponding to the simulation deformation data; if the change trends are different, the simulation deformation data are obtained again after the simulation mode for obtaining the simulation deformation data is switched, and the simulation deformation data are compared with the standard deformation data again. According to the method provided by the invention, the deformation warping of the injection molding plate can be simulated based on the preset deformation warping parameters, the obtained simulation deformation data reflecting the deformation warping degree of the injection molding plate is compared with the standard deformation data, and the corresponding deformation warping parameters are stored when the change trend and the measurement index are met.
Owner:SHANGHAI VICO PRECISION MOLD & PLASTICS

An artificial intelligence-based mine roadway on-demand support structure optimization method

The application discloses a mine roadway on-demand support structure optimization method based on artificial intelligence, relates to the technical field of mine roadway support, and collects roadway measurement data of a roadway measurement point; captures and extracts the roadway measurement data to obtain fissure geological parameters, classifies and summarizes the fissure geological parameters to obtain a rock mass quality grade; constructs a roadway section model, collects parameters, obtains original rock mass mechanical parameters, simulates and constructs the roadway section model to obtain a same-grade simulation parameter library; compares and simulates the same-grade simulation parameter library to obtain a parameter simulation result, enhances defects of the roadway measurement point according to the parameter simulation result, and obtains an optimal support scheme; the support scheme design efficiency and accuracy are improved, the roadway stability and safety are improved, excessive support or insufficient support is avoided, and support economy is optimized.
Owner:HEFEI TUNAN INTELLIGENT TECH CO LTD

Electric vehicle power battery detection equipment traceability device based on parameter simulation

The utility model relates to the technical field of traceability of electric vehicle power battery detection equipment, and specifically provides a parameter simulation-based traceability device for electric vehicle power battery detection equipment. The traceability device comprises traceability equipment and a charging female seat, the traceability equipment comprises a standard voltage source and a control switch, the standard voltage source is electrically connected with the charging female seat through the control switch, the charging female seat is electrically connected with detection equipment, and the detection equipment refers to electric vehicle power battery detection equipment; the standard voltage source is used for simulating the ideal voltage of the power battery of the electric vehicle in the traceability configuration stage; and the detection equipment is used for acquiring the ideal voltage of the power battery of the electric vehicle and performing traceability configuration based on the ideal voltage of the power battery of the electric vehicle and the traceability equipment. According to the utility model, the ideal voltage of the power battery of the electric vehicle is simulated through the standard voltage source, so that the matched connection of the detection equipment and the traceability equipment is realized, and the technical problem that the traceability device cannot simulate the relevant parameters of the power battery of the electric vehicle is solved.
Owner:SHAANXI INST OF METROLOGY

Intestinal flow field modeling method and device based on bidirectional fluid-solid coupling

The present invention discloses an intestinal flow field modeling method and device based on bidirectional fluid-solid coupling. The method comprises: S1, collecting intestinal multimodal data; wherein the multimodal data includes geometric parameters, motion characteristics, content statistics and wall stress and strain data of the intestine; S2, reconstructing a three-dimensional geometric model of the human intestine; S3, preprocessing the established intestinal geometric model by format conversion and simplification and modification; S4, dividing the preprocessed model into a fluid domain and a solid domain, and establishing a bidirectional fluid-solid coupling model architecture; S5, performing fluid domain simulation settings: simulating multiphase flow contents and setting a fluid simulation model; S6, performing solid domain simulation settings: setting intestinal wall material parameters and simulating intestinal movement; S7, achieving bidirectional fluid-solid coupling and simulating the intestinal flow field. The method takes into account the bidirectional interaction between the intestinal wall solid domain and the intestinal content fluid domain, achieving more accurate intestinal flow field simulation.
Owner:SICHUAN UNIV

AMR task scenario equipment parameter simulation generation method, device and storage medium

The present invention relates to a method, device and storage medium for simulating and generating equipment parameters for AMR task scenarios, which are applied to the field of digital twin technology. The method comprises: determining the task processes of different AMR task scenarios to thereby determine the equipment involved in the task scenarios; obtaining the interaction relationship between any two devices (including AMRs) involved in the task scenarios to thereby determine the coupling relationship between any two devices; screening N devices with strong coupling relationships with the AMRs; generating sampling parameter combinations of the AMRs and the N devices based on the historical operating data of the devices and the coupling relationships; constructing a digital twin model of the AMR task scenario through digital twin technology; simulating the operation of the task processes for different parameter combinations in the digital twin model; obtaining the reliability score corresponding to each parameter combination to thereby screen out the optimal parameter combination; and updating the parameters of the real AMRs and the equipment based on the optimal parameter combination.
Owner:RIAMB (BEIJING) TECH DEV CO LTD

A method, system and medium for calculating thermal conductivity of graphene / copper composite interface

This application discloses a method, system, and medium for calculating the interfacial thermal conductivity of a graphene / copper composite material. These methods primarily relate to the field of interfacial thermal conductivity technology and address the problem that existing solutions are unable to calculate the interfacial thermal conductivity of graphene / copper composite materials based on phonon-electron coupling, thereby failing to provide an optimal graphene / copper composite material. The method comprises: obtaining the degree of coupling between phonons and electrons using a phonon-electron coupling formula and basic parameters of the current graphene / copper composite material; then constructing a dual-temperature model incorporating the degree of coupling between phonons and electrons in simulation software; using the simulation parameters, the simulation software incorporating the dual-temperature model simulates the interface structure model to obtain the interfacial thermal conductivity of the graphene / copper composite material to be tested; and determining that the graphene / copper composite material with the structure corresponding to the maximum value in the interfacial thermal conductivity is the optimal graphene / copper composite material.
Owner:浪潮智能终端有限公司

Tilting pad thrust bearing pad machining method and system

The invention discloses a tilting-pad thrust bearing pad machining method and system. The method comprises the steps that pad basic structure parameters, material physical attribute parameters and preset machining precision indexes are obtained firstly; constructing a tile force thermal coupling deformation simulation model, and inputting parameters to simulate stress distribution and deformation of the tile in cutting; a surface microtopography oil film adaptation model is constructed based on the deformation data, and the mapping relation between the surface microcosmic parameters and the oil film performance is determined; then multi-source sensing equipment is deployed to collect cutting force, temperature and vibration signals, and comprehensive characteristic parameters are obtained through processing of a multi-source sensing cutting force fusion algorithm; the adaptive relation parameters and the comprehensive characteristic parameters are input into a machining parameter decision support platform, and parameters such as the cutting speed and the feeding amount are dynamically optimized; and finally, processing according to the optimized parameters and feeding back data correction parameters in real time. The system comprises six units. According to the method and system, multi-model collaboration and parameter real-time optimization are achieved, and the pad machining precision and the bearing reliability are improved.
Owner:SICHUAN JINGMAO MECHANICAL & ELECTRICAL EQUIPMENT CO LTD

A numerical simulation method for non-explosive excavation of channel slope rock mass in three-dimensional finite element

PendingCN122287173ALithologyClassical mechanics
This invention provides a three-dimensional finite element non-blasting excavation numerical simulation method for rock mass excavation on waterway slopes. This method utilizes FORTRAN language code throughout the entire process to achieve 3D model mesh creation, excavation calculation, solution, and data visualization. By constructing a digital pre-simulation method using full-process code, it enables a forward-looking assessment of the matching between construction methods and rock mass conditions. Through multi-condition parametric simulation, such as different lithology combinations and excavation force combinations, this method can quantify the response of different construction methods to the rock mass under corresponding conditions. Based on the results, the calculation of parameters such as excavation efficiency and excavation volume can be further expanded.
Owner:CHINA THREE GORGES UNIV

Hemodialysis teaching system based on AI intelligent pushing

The application relates to the technical field of hemodialysis teaching systems, and discloses a hemodialysis teaching system based on AI intelligent pushing. The system comprises four modules, namely, an operation feature extraction module, an instrument positioning analysis module, an operation step analysis module and a teaching strategy generation module. The operation feature extraction module acquires a hemodialysis teaching video stream and extracts multi-modal features containing instrument motion trajectory sequences and physiological parameter simulation data; the instrument positioning analysis module calls a pre-trained network for positioning and generates a coordinate data set containing instrument type and three-dimensional position encoding mapping; the operation step analysis module analyzes time sequence features by using a motion segmentation model and generates a result containing step integrity and error operation labels; and the teaching strategy generation module inputs the result into an intelligent pushing model, plans a personalized teaching path, outputs dynamic teaching elements containing a knowledge point sequence of a student ability model and operation difficulty parameters, and helps to realize precise and personalized hemodialysis teaching.
Owner:晋江市医院(上海市第六人民医院福建医院)

Reservoir parameter inversion method based on agent model and adaptive iterative pruning

PendingCN122635126AData setAlgorithm
The application discloses a reservoir parameter inversion method based on a proxy model and adaptive iterative pruning, and relates to the technical field of oil and gas reservoir development.The application obtains simulation production data based on prior information of reservoir parameters and a reservoir numerical simulator, generates a plurality of reservoir parameter simulation data to construct a data set, establishes a proxy model based on a convolutional neural network module and a recurrent neural network module, and is used for predicting reservoir production data, sorts weight parameters of each neural network in the proxy model after training and verification of the proxy model by using the data set, adopts an adaptive iterative pruning method, prunes the weight parameters of the proxy model by selecting reservoir parameter simulation data in a database, obtains a pruned proxy model, optimizes a reservoir numerical simulation model based on a set smoother algorithm and the proxy model, obtains an optimal reservoir numerical simulation model, and simulates production dynamic data of an actual reservoir by using the optimal reservoir numerical simulation model, so that the inversion efficiency of the reservoir parameters is effectively improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Battery electrolyte system simulation method, device and equipment and storage medium

The invention provides a battery electrolyte system simulation method, device and equipment and a storage medium, and the method comprises the steps: calculating the size of each component in a battery electrolyte, and carrying out the coarse graining processing to obtain simulation parameters; setting a simulation box and a periodic boundary condition, and combining with energy minimization to construct an initial model of battery electrolyte coarse graining simulation; determining a potential energy function of the action among the components according to the distance, energy and ion valence of different particles in each component; performing energy minimization and pre-balance simulation on the initial model to obtain an optimization model; performing simulation according to the potential energy function of the action of each component and the simulation parameter to obtain a motion trail parameter of each particle in the battery electrolyte; and determining particle parameters based on the motion trail parameters of each particle in the battery electrolyte, and displaying the battery electrolyte system structure through visual software. By adopting the method, the simulation difficulty of the battery electrolyte system is reduced, the simulation range is expanded, and meanwhile, the simulation accuracy and the simulation efficiency are improved.
Owner:CHINA FAW CO LTD

Airport aircraft taxiing efficiency recovery analysis method and system

The invention discloses an airport aircraft taxiing efficiency redisk analysis method and system. The method comprises the following steps: performing space-time alignment on flight plan, aircraft position distribution, field monitoring radar and airport notification data to generate a fused space-time database; constructing a weighted directed graph model which takes the airport physical position as a node and the slidable path as an edge as an airport operation map; identifying flights with abnormal taxiing time, and mapping the actual track into an actual taxiing path sequence on the map through a hidden Markov map matching algorithm; calculating a theoretical optimal sliding path sequence by taking starting and ending nodes as constraints; the two paths are compared to position deviation nodes, and delay attribution is carried out in combination with node and edge attributes; and finally, carrying out visual display and parameterized simulation deduction. According to the method and the system provided by the invention, through a data fusion and map modeling technology, automatic and precise root cause tracing and strategy evaluation for the problem of low sliding efficiency are realized, and the intelligent level of airport ground operation management is improved.
Owner:FEIYOU TECH CO LTD

A Fault Diagnosis Method and System for Submersible Electric Pumps Based on CFD and Deep Learning

PendingCN122333680AFeature parameter3D modeling
This invention relates to the field of submersible electric pump (FET) fault diagnosis technology, and particularly to a method and system for FET fault diagnosis based on CFD and deep learning. The method includes constructing a full-channel 3D model, simulating FET faults by modifying key geometric feature parameters, and using a hybrid mesh strategy to divide the mesh; extracting time-domain and frequency-domain features from the simulation data, forming feature vectors from these features, and constructing multi-dimensional labeled simulation data using these feature vectors and multi-dimensional label vectors; constructing a multi-channel deep neural network, training the multi-channel deep neural network using the multi-dimensional labeled simulation data; and deploying the trained multi-channel deep neural network to a well site edge computing gateway to diagnose FET sensor data. This invention utilizes CFD to generate high-quality data to drive deep learning model training, achieving rapid and accurate collaborative diagnosis of multiple faults in FETs.
Owner:CHINA NAT PETROLEUM CORP +1

Model training method and device based on multi-channel detection system, equipment and medium

The invention discloses a model training method and device based on a multi-channel detection system, equipment and a medium, and the method comprises the steps: obtaining environment parameters of the multi-channel detection system; simulating a radiation source signal and a receiving signal based on the environmental parameters, and determining a detection threshold as a first label based on the receiving signal and a preset false alarm probability; based on the detection threshold, detecting the generated receiving signal through a Monte Carlo simulation experiment, and counting the detection probability that the radiation source signal exists in the receiving signal as a second label; constructing a first training data set based on the environmental parameters and the first labels, and constructing a second training data set based on the environmental parameters and the second labels; and iteratively updating the threshold estimation model based on the first training data set, and iteratively updating the detection probability prediction model based on the second training data set. According to the embodiment of the invention, the effectiveness and robustness of the method in the aspects of predicting the detection performance and determining the threshold value are realized.
Owner:SHENZHEN RES INST OF BIG DATA +1

Parameter simulation method, device and equipment based on deep shale gas reservoir, medium and product

The application discloses a deep shale gas reservoir parameter simulation method, device, equipment, medium and product, and relates to the technical field of oil and gas development. The method comprises the following steps: obtaining a preset geological model; simulating a fracturing-production process of the preset geological model based on a preset fracturing-production coupling model; the preset fracturing-production coupling model comprises a wellbore flow model, a fracture flow model and a shale reservoir flow model; iteratively solving based on the preset fracturing-production coupling model and the preset geological model to obtain simulation parameter distribution data in the fracturing-production process; the simulation parameter distribution data comprises one or more of the following: a fracture morphology distribution after fracturing, pressure distribution data of a shale reservoir after fracturing, water saturation distribution data of the shale reservoir after fracturing, pressure distribution data of the shale reservoir after production and water saturation distribution data of the shale reservoir after production. The application can improve the accuracy of deep shale gas reservoir parameter simulation.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Simulation scene generalization method based on Monte Carlo sampling

The invention specifically discloses a simulation scene generalization method based on Monte Carlo sampling. The simulation scene generalization method comprises the following steps that S1, the minimum generalization number of different distribution functions during generalization is determined; s2, analyzing different generalization parameters to obtain a distribution function most suitable for the parameters, and adopting different distribution functions to meet the challenge of traffic scene diversification; s3, traffic scene parameters conforming to a certain specific distribution function are obtained based on a Monte Carlo sampling algorithm; generalized parameters are generated by using Monte Carlo random sampling, wider and diversified scene changes are simulated, vivid and diversified scene data are generated, and an automatic driving simulation scene with uncertainty is generated by using a scene generation library based on the generated parameters, so that the automatic driving simulation effect is improved. By simulating diversified and vivid driving scene changes, the method can significantly improve the generalization ability and adaptability of the model in different scenes.
Owner:TONGHUI INTELLIGENT MACHINERY (SHANGHAI) TECHNOLOGY CO LTD

Tunnel electromechanical intelligent control simulation teaching system and method and practical training platform

The application discloses a tunnel electromechanical intelligent control simulation teaching system and method and a practical training platform, the method comprises a tunnel simulation module, a sensing simulation module, simulated electromechanical equipment and a control module, the tunnel simulation module is used for simulating a real tunnel structure; the sensing simulation module is used for simulating and collecting at least one environmental simulation parameter in the simulated tunnel; the simulated electromechanical equipment is used for simulating real electromechanical equipment in the tunnel; the control module is in communication connection with the sensing simulation module and the simulated electromechanical equipment respectively, the control module is configured to generate linkage control instructions for driving at least two types of simulated electromechanical equipment in the simulated electromechanical equipment according to at least one environmental parameter collected by the sensing simulation module; according to the linkage control instructions, the at least two types of simulated electromechanical equipment are controlled to run, so as to simulate the running state of the electromechanical equipment of the real tunnel. The conversion from textbook theory to hands-on operation is realized, it is guaranteed that students are no longer bystanders, and the learning immersion is greatly improved.
Owner:GUANGDONG COMM POLYTECHNIC

Multi-objective optimization method and system for gas reservoir CO2 injection extraction and storage

The invention belongs to the technical field of energy exploitation, and particularly relates to a multi-objective optimization method and system for gas reservoir injection, extraction and storage, and the method comprises the steps: firstly obtaining regulation and control parameter variables of extraction and storage, and calling an improved sampling algorithm for sampling combination to generate sample data; calling CMG data files for batch modification, extracting well names and DATE commands from the original dat file, simulating by combining sample parameters, generating a new scheduling block, inserting the new scheduling block into the last DATE command of the original file, generating a new CMG file, and exporting and merging CSV after processing; constructing a multi-output regression prediction model, and training the model by using a CSV file; then all regulation and control parameter variable combinations are extracted, data are exported, the trained model is called for prediction, and a parameter full combination is obtained; and finally, constructing a multi-objective optimization model, and exporting a Pareto optimal solution as a result by taking maximization of cumulative yield and storage efficiency as an objective. According to the invention, the problems of low efficiency and inaccurate precision of collaborative operation of sealing and natural gas exploitation in the prior art can be solved.
Owner:SOUTHWEST PETROLEUM UNIV

Quality control system for aluminum alloy die casting of engine cylinder head cover

The invention discloses an engine cylinder head cover aluminum alloy die casting quality control system, which relates to the technical field of intelligent control, and comprises a test module, an analysis module and a control module, a final assignment is obtained through testing, a first parameter is set, a simulation result is obtained through simulation, a second parameter is obtained through regulation and control, and a first mapping relation is established. The casting process is simulated, the positions and types of possible defects can be accurately predicted, the first parameter is regulated and controlled, the overall quality of the casting is improved, the first mapping relation between the second parameter and the casting model can be established according to different casting models, the most suitable technological parameter combination is provided for the casting of each model, and the casting quality is improved. The air hole problem of a thick and large part is effectively reduced, virtual verification is conducted on the die-casting process before production through the simulation technology, the development period of a new product is greatly shortened, and the utilization rate of materials is increased by accurately controlling various parameters in the casting process.
Owner:SHANXI ZHUXIN RONGZHI TECH CO LTD