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73 results about "Spatial simulation" patented technology

Control optimization method, system and device for environmental monitoring and medium

The invention relates to the technical field of environment monitoring, in particular to a control optimization method, system and device for environment monitoring and a medium, and the method comprises the steps: dividing a unit monitoring volume into a single space, then calculating a data deviation value based on the obtained environment data of n time points, dividing the single space into a conventional space and an edge space, and obtaining a data deviation value; meanwhile, an environment representative value is calculated according to conventional spatial data, the difference characteristic value and the edge frequency of each single space are calculated and comprehensively processed to determine a spatial outlier, and then the single space is divided into a stable region and a fluctuation region according to the spatial outlier; selecting a feature region by combining labels of adjacent regions of a single space in the space simulation model, and setting monitoring equipment; according to the invention, accurate layout of the monitoring equipment can be realized, the monitoring equipment is emphatically arranged in the fluctuation area and the key feature area, and the monitoring capability and the response speed of environmental change are improved.
Owner:ZHONGBING CHANGZHI TECH CO LTD

Method and apparatus for determining safe distance for karst cavity, device, and storage medium

Disclosed are a method and an apparatus for determining a safe distance for a karst cavity, a device, and a storage medium. The method comprises: acquiring geological survey data of a target karst region, and constructing a geological simulation model of the target karst region on the basis of the geological survey data; on the basis of feature information of a target karst cavity, constructing a spatial simulation distribution model of the target karst cavity; on the basis of tunnel design parameters, integrating the geological simulation model and the spatial simulation distribution model to obtain a tunnel construction model of the target karst cavity; embedding preselected vehicle information into the tunnel construction model to obtain a corresponding tunnel operation model; and creating disaster simulation events, performing risk prediction for the tunnel operation model, and determining a safe distance for the target karst cavity on the basis of risk prediction results. The method and apparatus for determining a safe distance for a karst cavity, the device, and the storage medium in the present invention optimize tunnel design and construction, ensure the safety of tunnel construction and operation, and provide accurate data model support for actual tunnel engineering.
Owner:GUANGZHOU METRO GRP CO LTD +3

Interior space simulation device

To display a display image of an interior space including interior equipment that matches a user's image by a simple operation.SOLUTION: An interior space simulation device 1 comprises: an acquisition unit 12 for acquiring atmosphere information of an interior space input by a user terminal 200; an extraction unit 13 for extracting a plurality of images of interior spaces stored in association with the acquired atmosphere information of interior spaces from a storage unit 11; a selection unit 14 for selecting a prescribed number of images of interior spaces from among the plurality of extracted images of interior spaces; and a transmission unit 15 for transmitting at least one of the prescribed number of selected images of interior spaces to the user terminal 20. If an image similar to an image of any interior space constructed by an entity in the past can be retrieved from among the plurality of images of interior spaces through image recognition, the selection unit 14 selects the retrieved image of the interior space as the prescribed number of images of interior spaces.SELECTED DRAWING: Figure 1
Owner:SANGETSU CORP

Umbilical vein catheterization virtual-entity fusion training system based on novel material

PendingCN121260067ACosmonautic condition simulationsEducational modelsHuman bodyUmbilical vein catheterization
The invention discloses an umbilical vein catheterization virtual-entity fusion training system based on a novel material, and relates to the technical field of medical simulation training. According to the system, a dynamic three-dimensional umbilical vein anatomical model is constructed through the virtual simulation unit, the entity operation unit adopts a bionic gradient material to simulate neonatal umbilical tissue, and the binding force feedback unit realizes tactile-visual dual-channel interaction. Comprising a multi-source coupling coordinate calibration algorithm, a viscoelastic layered deformation transmission algorithm and the like, and the problems of insufficient operation authenticity and feedback lagging in traditional training are solved by dynamically matching virtual and entity operation spaces and simulating real tissue mechanical response. The novel material preparation unit realizes mechanical property matching with human tissues through a nano-composite process, and the environment simulation unit can reproduce various pathological scenes. The immersion and effectiveness of operation training are remarkably improved, and the method is suitable for standardized training of medical staff in the neonatology department.
Owner:BEIJING CHAOYANG HOSPITAL CAPITAL MEDICAL UNIVERSITY

Reasonable land planning system based on machine learning carbon storage

The invention relates to the technical field of land data planning, and discloses a reasonable land planning system based on machine learning carbon storage, and the system comprises a multi-source data fusion module, a carbon storage prediction module, a three-generation coordination discrimination module, a land use intelligent optimization module, a scene interaction deduction module, and a planning result generation module. By integrating data such as standardized land utilization and carbon density, a machine learning model is utilized to predict the dynamic state of the carbon density in real time, and the functional coordination degree of the three plants is quantitatively evaluated; and then, by taking the improvement of the carbon reserves and the coordination of the three plants as targets, carrying out spatial simulation and iterative optimization in combination with multi-objective optimization and a cellular automaton, comparing different policy carbon sink effects through scene deduction, and finally outputting an optimization scheme, thereby realizing the real-time closed loop of evaluation and optimization, and synergistically improving the carbon sink benefits and the three-plant function.
Owner:LIANYUNGANG LAND CONSOLIDATION CENT

Land type adjustment and simulation method based on carbon neutralization constraint

The invention discloses a land type adjustment and simulation method based on carbon neutralization constraint, and the method comprises the following steps: obtaining land data of a target region, and calculating the carbon flux of each classification space; constructing a carbon profit and loss weight function based on the carbon flux, the ecological benefit and the economic benefit as an overall constraint condition; reversely deducing each land space area corresponding to a preset time node on the basis of a Markov chain model, and taking the land space areas as stage constraint conditions; performing NSGA-III optimization solution based on the constraint condition to obtain a corresponding land use adjustment scheme; an improved PLUS model is adopted to simulate a land use adjustment scheme, the carbon cost of land conversion is incorporated into a land utilization simulation process, and a genetic algorithm is utilized to optimize model parameters to obtain a land space simulation result of a target year. According to the method, a carbon cycle mechanism, a carbon sink optimization target and a land utilization decision full process are coupled, a closed loop of carbon constraint-land simulation-policy assessment is realized, and scientific decision support is provided for regional carbon emission reduction and ecological protection.
Owner:ARCHITECTURAL DESIGN RES INST OF GUANGDONG PROVINCE

A method for simulating dissolution intensity of offshore deep reservoir

The present application relates to the technical field of reservoir diagenetic strength prediction characterization, and more particularly to a simulation method for offshore deep reservoir dissolution strength, which is characterized in that, according to the relationship between the parameters of diagenetic fluid channels and the reservoir dissolution strength, the diagenetic fluid channels are mathematically characterized, a reservoir dissolution factor calculation model under the guidance of fault parameters is constructed, the model can calculate the dissolution strength in the vertical direction of a single well, and finally, the longitudinal distribution curve of the dissolution factor calculated by the model is combined with seismic data to perform inversion simulation, spatial simulation and prediction of the reservoir dissolution strength, so that quantitative evaluation of the reservoir dissolution effect can be realized. The present application constructs a dissolution factor prediction calculation model based on the quantitative relationship between the dissolution strength and the diagenetic fluid channels, and performs calculation from the cause mechanism of dissolution, so that the rationality and accuracy of the characterization are improved.
Owner:HAINAN BRANCH OF CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD

Digital star simulation detection space target three-dimensional shape recovery verification system and method

The invention designs a digital star simulation detection space target three-dimensional shape recovery verification system and method. A digital star detection space target three-dimensional reconstruction simulation test is realized by reasonably setting the working state of each system unit. Comprising the following steps: a digital star circumference fly-around observation motion simulation unit provides spatial azimuth information such as relative position and attitude of an observation star relative to an observed target star, a sun vector and the like; the image simulation unit is used for carrying out full-link imaging analogue simulation on the geometric structure and surface material characteristics of the space target through relative pose information of the sun, the target and a camera under a J2000 coordinate system provided by the motion simulation unit, and generating a high-precision visible light simulation image of the space target; and the three-dimensional shape recovery unit performs three-dimensional shape recovery processing on the high-precision visible light simulation image of the space target to obtain a complete three-dimensional structure of the space simulation target, and compares a three-dimensional reconstruction result with an input model to realize a three-dimensional reconstruction simulation test of the space target under multiple working conditions.
Owner:SHANGHAI AEROSPACE SYST ENG INST

Extraterrestrial environment welding gravity level ground simulation device and method

The present application belongs to the field of ground simulation facilities, and particularly relates to a gravity level ground simulation device and method for extraterrestrial environment welding. The device comprises a general control system, a vacuum system, an outer pipe assembly and a gravity level control mechanism. The general control system can control various parameters during the operation of the device. The vacuum system and the gravity level control mechanism provide two space environment characteristics of high vacuum and different levels of gravity for experiments requiring space simulation. The vacuum degree in the device can reach 10 ‑4 Pa, which can simulate the high vacuum environment in space. The adjustment of different gravity levels of 0-4g0 can ensure that the device has the ability to simulate the gravity of various extraterrestrial planets. Moreover, the device has the advantages of flexible and stable gravity level, high experimental repetition rate, low cost, high safety, etc. and can be used to study the basic welding theory under different gravity levels in space environment, thereby filling the blank of the gravity level ground simulation device specially used for extraterrestrial environment welding.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Clamping device and test method for composite material casing installation edge simulation piece

The invention relates to the technical field of engines, and discloses a clamping device and a test method for a composite material casing installation edge simulation piece, the clamping device for the composite material casing installation edge simulation piece comprises a supporting piece, the surface of the supporting piece is used for placing a simulation piece; the first limiting piece is located on the simulation piece, the first limiting piece is connected with the supporting piece through a first fixing piece, a limiting space is formed between the first limiting piece and the supporting piece, and the first side edge of the simulation piece is located in the limiting space; the second limiting piece is located on the supporting piece, one end of the second limiting piece is connected with the supporting piece, the other end of the second limiting piece abuts against the second side edge of the simulation piece, and the length of the second side edge is larger than that of the first side edge. According to the invention, precise fixation of the simulation piece is realized, the operation process is simplified, the simulation piece is protected, the reliability and efficiency of the test are improved, and the problems of poor clamping precision and complex operation of a clamping device in the prior art are solved.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

Method and device for simulating spatial level of urban economy

The application provides a city economic level space simulation method and device, first, multiple source space data are acquired, the research area is divided into a plurality of sub-regions according to the spatial distribution characteristics of the city economic level, and a driving factor data set is constructed by taking a regular space unit as a basic simulation unit;Then, based on the historical city economic level total data, the total quantity constraint model of the city economic level evolution with time is constructed on the sub-region scale;Combined with the attribute information of the space unit, the city economic level grade change probability model of the space unit is established, and the probability of the city economic level grade change of each space unit in a given time stage is calculated;Under the total quantity constraint condition of the city economic level, the dynamic expansion mechanism of the city economic level grade system is introduced, and the city economic level grade of the space unit is distributed and updated;The simulation results of each sub-region are spatially integrated, so that the simulation results meet the overall scale total quantity constraint, so that the city economic level space simulation result is obtained.
Owner:CENT SOUTH UNIV

High-fidelity simulation method and system for spatial non-cooperative target perception

The invention discloses a high-fidelity simulation method and system for spatial non-cooperative target perception, and belongs to the technical field of spatial simulation, and the method comprises the steps: selecting a virtual simulation mode or a ground simulation mode, and generating simulation data in a simulation environment; performing synchronous processing on the simulation data; and transmitting the synchronized sensor image data to an algorithm module, carrying out visual SLAM sensing and pose decoupling processing on the synchronized sensor image data, and carrying out coordinate conversion based on the processed relative pose data and the synchronized real pose data to obtain absolute pose data of the spatial non-cooperative target. The method can adapt to different simulation requirements, ensures high fidelity of a simulation environment, can accurately extract image feature points and estimate the relative pose, ensures the accuracy of pose estimation of a space non-cooperative target, accurately simulates physical behaviors in a real space task, and improves the simulation efficiency. And the accuracy of whole-process verification and performance evaluation of the complex space robot system is improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Multi-main-body spatialization cultivated land supplement simulation and scene parameter optimization method and device

PendingCN121458166AForecastingResourcesThird partyFarmland preservation
The invention relates to the technical field of cultivated land protection simulation and spatial information, and discloses a multi-subject spatialization cultivated land supplementary simulation and scene parameter optimization method and device, and provides a management department, farmer and enterprise multi-subject spatial simulation method and mode by paying attention to the complex decision-making process of farmers and the participation form of a third-party company. Decision simulation of farmland supplement of the farmer under the farmland occupation and supplement balance rule is realized. The farmland plot simulation is not limited to cellular or grid scale, matching of the farmland man-land relationship of farmers is facilitated, the multi-body spatialization modeling capability and the rule scene dynamic simulation capability are improved, the method is more scientific and objective, the simulation precision is higher, the Pareto optimal solution of the rule parameters is obtained through the optimization algorithm, and the method is suitable for large-scale popularization and application. Quantitative rule parameters can be provided for a management department.
Owner:CHINA THREE GORGES CORPORATION

A dynamic space simulation method for global satellite navigation constellations

The application belongs to the technical field of simulation test, and particularly discloses a dynamic space simulation method for a global satellite navigation constellation, which is based on the idea of optimizing the overall antenna layout and locally compensating power, and proposes a dynamic space simulation method for the global satellite navigation constellation. The key core of the method is a design process based on triangular antenna layout and a local navigation signal power compensation strategy. The method has the advantages of small antenna quantity requirement, uniform layout, simple antenna path calculation, etc. By using the dynamic space simulation method for the global satellite navigation constellation, the construction of a dynamic test environment for all visible satellite navigation signals from different directions at any position in the global range can be realized in the test space, and the simulation of all visible satellite navigation signals at any position in the global range can be realized.
Owner:UNIT 63892 OF PLA

A large-scale heavy-load cylinder rapid erection simulation mechanism system

The present invention discloses a large-sized heavy-loaded cylinder rapid erection simulation mechanism system, which belongs to the field of mechanism simulation technology. The system includes a scissor assembly, a drive assembly, a buffer assembly, a spring assembly and a cylinder equivalent assembly. The scissor assembly is used to achieve the equivalent single-axis rotation of the large-sized heavy-loaded cylinder, the drive assembly provides a power source for the movement of the system, the buffer assembly is used to reduce the impact when the system stops moving, the spring assembly is used to help the scissor assembly pass the movement dead point in the initial state, and the cylinder equivalent assembly is used to be equivalent to an actual large-sized heavy-loaded cylinder. The present invention uses a scissor-type design to achieve the equivalent single-axis rotation of a large-sized heavy-loaded cylinder, reducing the space occupied by the mechanism and achieving sub-second response. Simulate the rapid erection function of a large-sized heavy-loaded cylinder in a confined space; by adjusting the mechanism size and excitation, obtain the "angle-time" target curve of the large-sized heavy-loaded cylinder.
Owner:HARBIN INST OF TECH

Automobile heat insulation film experience device with in-automobile space simulation function

The utility model relates to the technical field of solar heat insulation film tests, and discloses an automobile heat insulation film experience device with an in-automobile space simulation function, which comprises a support placed on the ground and a transparent plate arranged at the upper part of the support and used for pasting a solar heat insulation film, and is characterized in that a frame plate is arranged on the support, and a cavity is formed between the transparent plate and the frame plate; a door plate capable of being opened / closed is arranged on the frame plate, the cavity is communicated with / separated from the outside through opening / closing of the door plate, and a detection table and a detection mechanism are arranged in the cavity. According to the automobile heat insulation film experience device with the function of simulating the space in the automobile, the cavity is formed between the transparent plate and the frame plate, so that the space in the automobile can be really simulated; opening / closing of the vehicle door or the vehicle window is simulated through opening / closing of the door plate, the test of the solar heat insulation film is more real, and the user experience is good.
Owner:NINGBO JINGDIAN AUTOMOBILE SERVICE CO LTD

Grassland degradation ecological risk assessment method based on multi-agent model

This invention relates to the field of ecological environment assessment and spatial simulation technology, and discloses a method for grassland degradation ecological risk assessment based on a multi-agent model. The method includes a spatial risk assessment module that acquires multi-source basic data and divides it into discrete grid cells, calculating a landscape ecological risk index to generate spatial distribution results; a driving mechanism identification module that extracts driving factors to construct an improved regression tree model and outputs nonlinear response rules; and a multi-agent dynamic simulation module that constructs grassland environmental entities based on grid cells, injects risk indices and response rules, generates herder behavior entities, and inputs management policy parameters. Iterative calculations are performed using these two types of entities to simulate the dynamic process of herder relocation and resource consumption. After the iteration reaches the target year, the grid landscape attributes are reclassified according to the remaining grass cover, and the data is re-input into the assessment module for aggregation calculations, outputting a spatial distribution map to complete the evolution assessment. This invention can intuitively test the intervention effect of management policies on grassland degradation.
Owner:GANSU AGRI UNIV

Virtual building model runtime generation method and apparatus, and electronic device

The invention provides a virtual building model runtime generation method and device and electronic equipment, and relates to the technical field of three-dimensional space simulation. The method comprises the steps of performing non-real-time preprocessing on original building contour line data corresponding to a virtual building model, analyzing and converting regularized building data into model entity data with a predefined structure when an application program runs, and after a data change set generated by user interaction operation is received, obtaining a data change set; and carrying out fusion updating on the model entity data, carrying out matching and instantiation on a building prefabricated body from a preset prefabricated body library based on the updated model entity data to generate rendering resources, and carrying out batch processing and component registration on the rendering resources to complete rendering. According to the scheme, the dependence on high-precision static model resources can be reduced in the operation stage, the resource occupation pressure in a large-scale building scene is reduced, and dynamic generation and management of the large-scale virtual building model are realized on the premise of ensuring the operation stability.
Owner:EVERYTHING MIRROR (SHANGHAI) TECHNOLOGY CO LTD

Method for automatically generating three-dimensional simulation wire harness standard production based on wiring relation

The invention discloses a method for automatically generating a three-dimensional simulation wire harness standard production based on a wiring relation, and relates to the technical field of wire harness three-dimensional space simulation length and wire harness production, and the method comprises the steps: S1, drawing an electrical cabinet three-dimensional model according to electrical elements in an electrical cabinet; s2, placing the electrical element in the three-dimensional model of the electrical cabinet, and inputting wiring point character attribute data of the electrical element; s3, drawing a wiring harness path diagram with public target positioning according to the three-dimensional model of the electrical cabinet, the wiring point character attribute data of the electrical element and the public point character data; s4, automatically generating a three-dimensional wire harness with a bundling space distribution position based on an electrical wiring table and the obtained wire harness path diagram; and S5, according to the obtained three-dimensional wiring harness path model, each wiring harness is exported into a corresponding sequence lower line table according to a bundling space position sequence, and inflection point positions of each wiring harness form data to be output to the lower line table.
Owner:SHANGHAI KAIFAN TECHNOLOGY DEVELOPMENT CO LTD

Regional development and design general control management system and method

The invention relates to a general control management system and method for regional development and design. The general control management system comprises a data integration and processing module, a digital twin base module, a plan management module, a spatial analysis module, a general control examination module and a user module. The data integration and processing module is configured to integrate multi-source heterogeneous data and perform cleaning, integration and standardization processing on the integrated multi-source heterogeneous data; the digital twin base module is configured to perform data storage, fusion treatment and visual rendering and provide supporting capability; the plan management module is configured to perform plan decomposition, plan tracking and feedback setting; the spatial analysis module is configured to perform spatial simulation analysis according to the digital twin model; the general control review module is configured to perform review management according to regional design general control standards and processes; the user module is configured to define a use object. Through business function development, important support and management tools are provided for regional development and construction, and the overall management efficiency of regional construction is improved.
Owner:SHANGHAI URBAN INVESTMENT CHANGXING CONSTRUCTION & DEVELOPMENT (GROUP) CO LTD +1

Portable box for emergency training

The invention relates to a portable box for emergency training, which comprises a box body and a box door, the front surface of the box door is provided with a first accommodating space, and the box body is provided with a second accommodating space; the training host is operably accommodated in the first accommodating space, the training host has a working state and an accommodating state, and in the working state, the training host extends out of the first accommodating space by a preset distance; in the storage state, the training host is completely stored in the first accommodating space; the dummy is accommodated in the second accommodating space; the AED training machine is contained in the second containing space or contained in a containing groove formed in the back face of the box door; the camera module is installed at the position, close to the top, of the front face of the box door, and the shooting angle can be adjusted within a preset range. The portable box is small in size, can better accommodate all teaching equipment, is convenient for a user to carry, and is more convenient to use.
Owner:久心医疗科技(苏州)有限公司

Information processing system, information processing method and program

An information processing system, method, and program are provided that evaluate the feasibility of a design system from the perspective of both spatial simulation and system specifications, and grasp the evaluation results in the context of their relevance to the specifications. [Solution] In an information processing system, information processing by an information processing device includes acquiring (S1) spatial model information and design information from a user terminal. The spatial model information describes a physical model in a virtual space of a design system to be designed and includes information on physical quantities that can be calculated in the virtual space, and the design information indicates specifications of the design system, the specifications being set by a user who designs the design system. The information processing also includes associating (S5) the spatial model information with the design information, calculating (S9) an evaluation index related to the feasibility of the specifications in the physical model based on the result of the association, and outputting (S10) the calculated evaluation index in association with the specifications included in the design information.
Owner:KK TOYOTA CHUO KENKYUSHO

A control optimization method, system, device and medium for environmental monitoring

The present invention relates to the field of environmental monitoring technology, and in particular to a control optimization method, system, device and medium for environmental monitoring, comprising: dividing a unit monitoring volume into a single space, then calculating a data deviation value based on environmental data obtained at n time points and dividing the single space into a regular space and an edge space, calculating an environmental representative value based on the regular space data, calculating the difference characteristic value and edge frequency of each single space, and comprehensively processing the two to determine a spatial outlier, then dividing the single space into a stable area and a fluctuating area based on the spatial outlier, selecting a feature area based on labels of adjacent areas of the single space in a spatial simulation model and setting monitoring equipment; the present invention can achieve precise layout of monitoring equipment, focus on deploying monitoring equipment in fluctuating areas and key feature areas, and improve the monitoring capability and response speed to environmental changes.
Owner:ZHONGBING CHANGZHI TECH CO LTD

Urban economic level space simulation method and equipment

The invention provides an urban economic level spatial simulation method and equipment, and the method comprises the steps: firstly obtaining multi-source spatial data, dividing a research region into a plurality of sub-regions according to the spatial distribution characteristics of the urban economic level, and constructing a driving factor data set by taking a regular space unit as a basic simulation unit; then, on the basis of historical urban economic level total data, a total amount constraint model of the urban economic level evolved along with time is constructed on the sub-region scale; combining the attribute information of the space units to establish a space unit urban economic level grade change probability model, and calculating the probability of urban economic level grade change of each space unit in a given time stage; under the constraint condition of the total urban economic level, an urban economic level grade system dynamic expansion mechanism is introduced, and spatial unit urban economic level grades are distributed and updated; and performing spatial integration on the simulation results of the sub-regions to enable the simulation results to meet the overall scale total amount constraint so as to obtain urban economic level spatial simulation results.
Owner:CENT SOUTH UNIV

Virtual road model runtime generation method and device, electronic equipment and storage medium

The invention provides a virtual road model runtime generation method and device, electronic equipment and a storage medium, and relates to the technical field of three-dimensional space simulation. The method comprises the steps of forming road entity data by performing offline regular processing on original road data, and performing screening, disassembling and modular generation on the road entity data in combination with scene hierarchy information of a target three-dimensional scene in an operation stage, so that the generation precision of a road model corresponds to a scene hierarchy. According to the scheme, the road generation process is converted into a real-time grading generation mode based on the road elements from overall static modeling, so that the scale of road data participating in calculation in the operation stage can be reduced, and the interference of irrelevant road elements on the generation process is reduced; the generated road model keeps controllable consistency in geometric structure and detail level, and road model generation and loading efficiency in a large-scale three-dimensional scene is improved.
Owner:EVERYTHING MIRROR (SHANGHAI) TECHNOLOGY CO LTD

Portable kit for first aid training

The application relates to a portable box for first-aid training, which comprises a box body and a box door, the front surface of the box door is provided with a first containing space, the box body is provided with a second containing space; a training host is operatively contained in the first containing space, the training host has a working state and a containing state, in the working state, the training host extends to a predetermined distance outside the first containing space; in the containing state, the training host is completely contained in the first containing space; a simulation person is contained in the second containing space; an AED training machine is contained in the second containing space or a containing groove arranged on the back surface of the box door; a camera module is installed on the front surface of the box door close to the top and can adjust the shooting angle within a predetermined range. The portable box is small in size, can better contain all the teaching equipment, is convenient for users to carry and is more convenient to use.
Owner:久心医疗科技(苏州)有限公司

GIS-based organic pollutant concentration boundary simulation method

The invention provides a GIS (Geographic Information System)-based organic pollutant concentration boundary simulation method. The method comprises the following steps: acquiring multi-source data and preprocessing the multi-source data; constructing a multi-model fused GIS space simulation system and simulating concentration distribution of organic pollutants in soil, water and atmosphere; and analyzing the simulation result and generating a static map. According to the method, by coupling the EFDC hydrodynamic model, the CALPUFF atmospheric diffusion model and the Kriging interpolation model, the migration and diffusion characteristics of organic pollutants in multiple media of water, atmosphere and soil can be comprehensively reflected; according to multi-source data of geography, environment monitoring, weather and pollution sources, model parameters are optimized through a machine learning algorithm, and it is ensured that R of a simulation result is larger than or equal to 0.85, and the spatial resolution is not lower than 1 km; according to the invention, the spatial visualization of the simulation result is realized based on the GIS platform, the concentration thermodynamic diagram and the contour boundary are generated, and the concentration distribution of new pollutants is visually presented.
Owner:SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP

User planning path action accessibility analysis method based on digital twinborn model

The invention discloses a user planning path action accessibility analysis method based on a digital twinborn model, which comprises the following steps of: constructing a digital twinborn model library which comprises a product digital twinborn model and a maintenance personnel digital twinborn model; establishing a character inherent action database, wherein the character inherent action database comprises different maintenance personnel operation action data corresponding to maintenance task types; according to the product digital twinborn model, the maintenance personnel digital twinborn model and the character inherent action database, fusing reachable space simulation of a user specified path and inherent actions; and when the path specified by the user and the corresponding action are reachable, calculating reachability related data according to a simulation result. The method is based on a digital twinborn technology, adopts a model algorithm to carry out quantitative space analysis, and completes iteration of design, simulation and optimization in a maintenance support characteristic design stage in a low-cost and high-efficiency manner.
Owner:CHINESE PEOPLES LIBERATION ARMY UNIT 32181

Optimization method for coupling of prosthesis and residual limb based on digital twinning

The present application relates to an optimization method for coupling of a prosthesis and a residual limb based on digital twinning. The anatomical structure characteristics and functional attributes of the residual limb skin, soft tissue and bone are fused with stress distribution data in multi-modal data fusion; a multi-layer digital residual limb relationship modeling is constructed; a multi-scale contact space composed of a structure adaptation area, a force transmission area and an energy buffer area of the residual limb and the prosthesis in dynamic behavior is defined; in the simulation of dynamic interaction, the shear force migration trajectory, stress concentration mode and soft tissue slip response between each micro unit of the coupling surface are simulated; the physical partition relationship of the coordination domain is constructed to assist in optimizing the structure and material function gradient of the prosthesis interface; the micro-injury area caused by the prosthesis in wearing and use is described, and the minimum tissue disturbance path is calculated; through deformation vector field analysis and thermal force coupling relationship modeling, the risk distribution of tissue fatigue induced by the prosthesis interface under long-time use is evaluated; dynamic multi-scale coupling optimization and multi-objective optimization control are realized to achieve fatigue risk visualization prediction and early warning.
Owner:FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA