12results about How to "Reduced modeling effort" patented technology

The invention discloses a well industrial and mining unmanned driving simulation test method based on cluster hardware-in-the-loop, and relates to the field of unmanned driving simulation, and the method comprises the steps: constructing a simulation environment of an operation map; building a cluster hardware-in-the-loop simulation system on the constructed operation map simulation environment, and simulating an ore drawing machine, a draw shaft, a transport vehicle and a carry-scraper on the simulation system; when a plurality of loading points or unloading points exist in the constructed operation map simulation environment, calculating an optimal loading point, an optimal unloading point and an optimal driving route of each transport vehicle to realize transport vehicle scheduling simulation; the cluster hardware-in-the-loop simulation system adopts a distributed calculation architecture to perform parallel simulation calculation on a plurality of ore drawing machines, draw shafts, carry-scrapers and transport vehicles. Aiming at the low simulation test efficiency of the underground unmanned vehicle in the prior art, the underground simulation test efficiency is improved.

The invention relates to the technical field of nuclear power station instrument control simulation, in particular to a simulation method, device and equipment of a nuclear power instrument control board card and a medium, and aims to solve the problem that the simulation precision of the nuclear power instrument control board card cannot be improved in the prior art. The simulation method of the nuclear power instrument control board card comprises the following steps: acquiring a multi-mode fault logic function diagram corresponding to the nuclear power instrument control board card; packaging the multi-mode fault logic function diagrams corresponding to the nuclear power instrument control board card into algorithm segments in the form of logic codes; determining fault insertion information of a board card in the cabinet equipment based on the fault input and output parameters of the algorithm segment in various fault modes; and according to the fault insertion information of the board card in the cabinet equipment, performing fault simulation in the simulation platform by using a preset human-computer interaction interface.

The invention discloses a modeling method and system based on a semantic segmentation model and a storage medium, and belongs to the technical field of three-dimensional modeling. The method comprises the steps of S1, a remote sensing data preprocessing stage; s2, a semantic segmentation model training and tuning stage; s3, a forest land area semantic segmentation recognition stage: performing pixel-level classification on the multispectral radar data of the target area by using the trained semantic segmentation model to obtain a semantic segmentation result, and performing vectorization conversion to obtain a Thiessen polygon area of an effective intensive forest land area; s4, a modeling scene construction stage; s5, a scene asset generation and output stage: generating an intensive forest land environment model based on the digital elevation model and the vegetation space coordinate point set; and performing geometric random transformation on the vegetation monomer model based on a CGA rule to obtain digital twinborn scene assets and outputting the digital twinborn scene assets. The tree space distribution characteristics based on satellite observation are accurately restored, so that the precision of environment modeling is improved within a low cost range.

The invention discloses a data display method and device and electronic equipment, and belongs to the field of industrial quality detection and the technical field of image rendering. The method comprises the following steps: in response to a defect display request sent by a terminal for a target product, carrying out space alignment on a target grid model and a defect labeling depth map of the target product; the defect display request is used for requesting to display a defect position of a target product; fusing each piece of defect labeling information in the defect labeling depth map into the target grid model; rendering the target grid model to obtain a first rendered image; in the first rendering image, rendering defect positions corresponding to the defect labeling information to obtain a second rendering image; the second rendering image is sent to the terminal, the position, size, depth, protrusion and the like of the defect can be presented to a user more visually and clearly, high interactivity is achieved, and the display and analysis efficiency can be effectively improved.

The present application discloses a simplified method for extracting the modal natural frequency of a power electronic converter, the method comprising: step 1, first modeling the basic structural topology of the power electronic converter, recorded as the first model and obtaining the first vibration mode of each order of natural frequency; step 2, characteristic modal analysis of the first vibration mode, selecting the structure with the largest vibration amplitude in the first model, and determining the vibration source and vibration analysis object in the first model; step 3, second modeling according to the vibration source and the vibration analysis object, recorded as the second model and obtaining the natural frequency at a preset frequency; step 4, according to the characteristic modal analysis result of the first vibration mode, calculating the participation factor of each order of mode corresponding to the natural frequency of the second model at the preset frequency; step 5, selecting the natural frequency corresponding to the participation factor greater than the judgment threshold as the natural frequency of the power electronic converter. Through the technical solution in the present application, the modeling workload and the selection error of the natural frequency are reduced.

The invention provides a dynamic simulation method and system for a planet probe vehicle, and belongs to the technical field of virtual simulation. Planet environment three-dimensional models corresponding to all planets are established; adjusting parameters in a preset original dynamic simulation model to obtain a dynamic simulation model and a visual model corresponding to each planet; after the dynamic simulation model of each planet is integrated with the corresponding visual model, rendering and simulation are carried out; the simulated scene state is displayed on a helmet-mounted display of the planet probe vehicle; according to a scene state displayed by a helmet-mounted display, determining position information of the planet probe vehicle in the virtual planet environment and obtaining a predicted driving action; performing driving behavior evaluation on the driving action of the driver based on the predicted driving action; according to the invention, the environment characteristics of different planets are accurately simulated, and the driving skill training efficiency of the planet probe vehicle is remarkably improved.

The invention provides an oxygen lance service life prediction method, system and device and a readable storage medium, and belongs to the technical field of metallurgical industry automation. The method comprises the following steps: acquiring operation parameters of an oxygen lance, and generating corresponding sequence data according to the types of the operation parameters and acquisition time; performing preprocessing and data cleaning on the sequence data to generate standard sequence data; performing feature engineering on the cleaned sequence data according to domain knowledge, and converting the sequence data into sequence features; deploying a pre-trained sequence large model in the prediction scene, or deploying a sequence large model finely adjusted by using oxygen lance state historical sequence data; on the basis of the feature sequence, according to a selected prediction mode, utilizing a deployed sequence large model to perform prediction, and generating a prediction result feature sequence; and converting the prediction result feature sequence, restoring the prediction result feature sequence into a prediction value, and determining the remaining service life of the oxygen lance according to the prediction value. According to the invention, efficient and accurate prediction of the service life of the oxygen lance is realized.

The application relates to a CAE-based light-emitting grid mist simulation method, which comprises the following steps: constructing a light-emitting grid product model based on three-dimensional data of the light-emitting grid and defining an analysis model; defining material parameters of parts of the light-emitting grid product model; defining outer wall surface simulation parameters of the light-emitting grid product model; defining the heat power of electronic components of the light-emitting grid product model; completing local mesh encryption of each part of the light-emitting grid product model; defining the inner surface of a mask of the light-emitting grid product model as a monitoring target, and defining a physical quantity as film thickness; setting solving parameters and performing calculation to obtain the film thickness of the inner surface of the mask of the light-emitting grid product model. The application can guide the internal structure design of the light-emitting grid and the layout of air holes on the shell.

The invention provides a ship power system virtual-real interaction method based on Modelica, and relates to the field of ship power systems. The ship power system virtual-real interaction method based on Modelica comprises the following steps: S1, data acquisition: acquiring operation data of a physical entity of a ship power system through a sensor; s2, system model construction: utilizing Modelica language to establish virtual models of the ship power system, wherein the virtual models comprise a generator model, a load model, a grid-connected controller model, a transformer model and the like; and S3, interaction mechanism design: designing a data interaction interface to realize data transmission and synchronization between the physical entity and the virtual model. According to the method, the difficulty and complexity of system model construction are greatly reduced, the modeling workload is reduced, errors caused when a solving sequence is manually specified are also avoided, the reusability, expandability, flexibility and knowledge accumulation capability of the model are remarkably improved, and the test efficiency and reliability of the ship power system can be remarkably improved.

The application discloses a kind of multi-platform collaborative outdoor rainwater pipe network parameterization design method and system, belong to building water supply and drainage design auxiliary field, including: setting the attribute parameter of outdoor rainwater pipe network target family in Revit project;Integrate the collaborative design environment based on Rhino, Grasshopper and Revit multi-platform data real-time interaction;Link building outdoor site model and building single water supply and drainage professional pipe model, create the wireframe model of pipe and inspection well by point and line in Rhino initially;Rainwater design flow and rainwater pipe hydraulic calculation are carried out based on Grasshopper;Relevant design parameter value and calculation result data are written into the attribute parameter column of pipe and inspection well family in Revit project by Grasshopper, generate final outdoor rainwater pipe network BIM model achievement.Through the application, the technical defects that outdoor rainwater pipe network design efficiency is low and cannot be carried out hydraulic calculation based on Revit platform can be solved.

The invention provides a system architecture and a system architecture integrated modeling method. The method comprises the following steps: step 1, constructing a system architecture based on a language transformation mechanism and an integrated language application mechanism of the system architecture; 2, constructing a system architecture based on a data exchange mechanism and an integrated tool chain of the system architecture; step 3, constructing an integrated modeling framework of the matrix type system architecture and the system architecture; according to the system architecture and the system architecture integrated modeling method, the unique data source advantage of the system model is fully played, the modeling workload is reduced, the information consistency between hierarchies is ensured, the research and development quality of complex equipment is improved, and the research and development period of the complex equipment is shortened.

This disclosure relates to an equivalent modeling method, an electrical component selection method and apparatus, equipment and medium. The equivalent modeling method includes: obtaining the electrical component parameters of electrical components in an electrical device; determining a three-dimensional constant cross-sectional configuration for replacing the electrical component and a three-dimensional joint configuration for the electrical component's joints, and equivalently replacing the electrical component to obtain a simplified electrical component model; determining the equivalent parameters of the electrical component based on the electrical component parameters and the simplified electrical component model, and assigning the equivalent parameters to the simplified electrical component model to obtain an equivalent electrical component model; and establishing a thermoelectric coupling simulation equivalent model of the electrical device based on the equivalent electrical component model. This effectively improves the efficiency of equivalent modeling for thermoelectric coupling simulation of electrical devices.