146 results about "Three dimensional simulation" patented technology

The invention relates to the technical field of material physicochemical property monitoring of a multi-source sensing network, in particular to a multi-source sensing storage environment collaborative monitoring and early warning method, which comprises the following steps of: dividing grid units according to material storage types, binding sensor node coordinates, constructing a grid region reference model, and constructing a grid region reference model; integrating the volatilization characteristic parameters analyzed by the laboratory, historical monitoring data and an environment threshold value to generate a substance and environment relation matrix; the method comprises the following steps of: calling model parameters to invert a theoretical gas concentration value, and triggering finite element physical field simulation through residual analysis to generate a three-dimensional simulation field data set containing a temperature gradient and a diffusion path. And the dynamic correlation analysis precision and the early warning reliability of storage environment monitoring are improved.

The invention belongs to the technical field of intelligent construction, and provides an intelligent arrangement system and method for building construction engineering formwork supporting frames. A data input module; the intelligent arrangement algorithm module is used for analyzing the stress condition of the building structure, determining the position and the number of supporting points, selecting the type and the specification of a supporting frame and optimizing the position of the supporting frame; the three-dimensional simulation module is used for generating a three-dimensional model of the template support frame, simulating the mounting process of the support frame and evaluating the stability and safety of the support frame; the safety checking module is used for performing static analysis and dynamic analysis on the three-dimensional model of the support frame; the real-time monitoring module is used for monitoring the stress, deformation and inclination conditions of the supporting frame in real time; by integrating an intelligent algorithm, real-time dynamic analysis and a three-dimensional simulation technology, the design and layout of the formwork supporting frame are optimized, the construction efficiency and safety are improved, and efficient utilization of resources is achieved.

The invention discloses an urban planning design method based on a live-action three-dimensional simulation system, relates to the technical field of urban planning, and is used for solving the problem of insufficient technology fusion depth in an existing method. Firstly, an initial data set is formed by collecting multi-source city data; performing cross-modal feature extraction and alignment based on a deep learning model to generate a fusion feature vector; constructing a dynamic three-dimensional city model by using the fusion feature vector, and embedding a GIS spatial analysis module to perform preliminary layout simulation; vR interaction logic is injected into the model, user behavior feedback is simulated, and environment influence indexes are calculated; according to simulation results and index feedback optimization planning parameters, multi-technology collaborative decision making is achieved; outputting an optimization scheme and generating a visual report, and supporting real-time iterative updating; according to the method, the technology fusion depth is remarkably improved, the response delay is shortened to millisecond level, the planning precision is improved, the environmental influence evaluation deviation is reduced, and efficient and sustainable urban planning practice is realized.

In a method for adjusting spatial elements, an environmental picture is displayed. The environmental picture includes a picture obtained by image acquisition of a scene region by an extended reality (XR) device. A first spatial element generated by three-dimensional layout recognition of the scene region is displayed based on the environmental picture. The first spatial element represents a three-dimensional simulation structure of a scene object in the scene region. An adjusted spatial layout element is displayed based on an adjustment operation on the first spatial element. The adjustment operation adjusts the three-dimensional simulation structure of the scene object. The adjusted spatial layout element is used to generate a three-dimensional virtual environment corresponding to the scene region in an XR application.

The invention relates to the technical field of building construction, in particular to a tubular column foot pre-embedding positioning method and device. The method comprises the steps of obtaining a steel structure construction drawing; constructing a tubular column and embedded foundation bolt construction model according to a steel structure construction drawing; according to the construction model, a positioning relation between the embedded foundation bolts and the vertical main reinforcements is established; construction model collision analysis and a three-dimensional simulation experiment are carried out based on the positioning relation of the embedded foundation bolts and the concrete main reinforcements; and processing and mounting the steel structure device based on the construction model. By optimizing construction nodes, the engineering quality is improved, the problem that the embedded steel plate cannot be reused is solved, the vertical column rib and foundation bolt embedded steel plate grinding tool is controlled to freely stretch out and draw back to control the position of the reinforcing steel bar, the effect of reusing different column diameters is achieved, the construction efficiency is improved, the progress is accelerated, and the construction cost is reduced. And the method has good economic and social benefits.

The invention relates to the technical field of three-dimensional simulation, in particular to a three-dimensional display method and system for landslide simulation and a storage medium. The method comprises the following steps: acquiring multi-source monitoring data of a landslide area; performing noise filtering and spatial interpolation on the multi-source monitoring data of the landslide area to obtain preprocessed landslide monitoring data; performing time-space reference unification processing on the preprocessed landslide monitoring data to obtain time-space alignment monitoring data; performing NURBS curved surface modeling based on the space-time alignment monitoring data to obtain an initial landslide three-dimensional structure model; performing finite element mesh adaptive subdivision on the initial landslide three-dimensional structure model to obtain a dynamic landslide mass mesh model; and acquiring current landslide displacement data. According to the method, the problem that updating of the three-dimensional model is delayed in a traditional method is effectively solved, and real-time performance and accuracy of landslide simulation are ensured.

The invention discloses a wire harness layout optimization method based on three-dimensional simulation, relates to the technical field of wire harness layout optimization, and solves the technical problem that layout is unreasonable due to the fact that interference between wire harness layouts is not considered by comprehensively considering various factors. Whether space interference exists in a preliminarily planned route is judged based on a model and an electrical schematic diagram, if interference exists, interference areas and reasons are analyzed and obtained, the number of reasons is judged, single or multiple types of reason signals are generated, optimization information is generated according to the single reason signals and the obtained information, and whether reason interaction exists or not is judged according to the multiple types of reason signals; if yes, generating optimization information, if not, generating a path analysis signal, analyzing the path analysis signal, obtaining all planned paths, calculating the planning priority value of each path, generating optimization information by taking the maximum planning priority value as a standard, properly solving the problem through system analysis, and reducing design change and cost increase.

Embodiments herein relate to a process for imaging device virtual simulation. A system can comprise a memory that stores, and a processor that executes, computer executable components. The computer executable components can comprise a rendering engine component that renders a virtual environment comprising a three-dimensional simulation of a simulated imaging device comprising a simulated chamber having a simulated object for analysis being rendered therein; and a simulating component that generates simulation data corresponding to a directed interaction comprising a three-dimensional modification of the simulated object.

The invention provides a digital twinning-based pore channel fracturing dynamic expansion three-dimensional simulation method and system, relates to the technical field of digital twinning, and particularly relates to a digital twinning mapping relation, geological space distribution data is converted into a three-dimensional geological basement model, fracturing operation time sequence operation data is converted into an injection process control rule, and a digital twinning mapping relation is established. Historical expansion characteristic data is converted into a pore expansion constraint rule, a dynamic simulation frame is constructed based on the digital twin mapping relation, and the dynamic simulation frame is operated after the three-dimensional geological foundation model serves as a space carrier, the injection process control rule serves as time drive and the pore expansion constraint rule serves as a morphological evolution basis. The fracturing fluid injection action is simulated according to an injection process control rule, pressure field distribution in a pore channel is synchronously calculated, an expansion boundary is judged in combination with a pore channel expansion constraint rule, the three-dimensional form evolution process of pore channel dynamic expansion is gradually generated, and finally a three-dimensional simulation result is output.

A crystal pulling method and system for fabricating a large-diameter silicon single crystal, and a silicon single crystal and a medium. The method can comprise: performing global two-dimensional simulation on a crystal pulling process, and acquiring a global temperature distribution, a velocity field distribution and an initial solid-liquid interface value during the crystal pulling process under a preset crystal pulling apparatus and a preset crystal pulling parameter; on the basis of the global temperature distribution and the velocity field distribution, determining a boundary condition, and on the basis of the boundary condition, performing local three-dimensional simulation on the crystal pulling process to determine a target solid-liquid interface value; adjusting the preset crystal pulling parameter until the initial solid-liquid interface value is equal to the target solid-liquid interface value within a threshold range, and using the adjusted preset crystal pulling parameter as a reference crystal pulling parameter; on the basis of the reference crystal pulling parameter, simulating and calculating a simulated defect during the crystal pulling process; on the basis of the simulated defect, iteratively optimizing the reference crystal pulling parameter until the simulated defect meets a preset condition, and using the optimized reference crystal pulling parameter as a target crystal pulling parameter; and fabricating a defect-free silicon single crystal.

The invention provides a garden planning aided design system, and the system is characterized in that the system comprises a data collection and analysis module which is used for obtaining influence factor data, and determining geographical influence factors and plant selection layout planning based on the influence factor data; wherein the influence factor data comprises topographic data, environmental factors and site status and is analyzed; the planning design and simulation module is used for selecting layout planning and generating a three-dimensional simulation model based on the geographical influence factors and the plants so as to generate the garden planning effect, overall layout planning software is provided for designers through design of auxiliary software, the workload of the designers can be well reduced, and the workload of the designers is reduced. And the overall layout of the garden design is more reasonable by using a simulated annealing algorithm, and a user can view the garden planning effect more intuitively through the generated three-dimensional simulation model.

The invention relates to the technical field of coating equipment, in particular to a camouflage coating spraying device and intelligent construction equipment. The camouflage paint spraying device comprises a spraying gun which is installed on the base frame, communicated with paint raw material liquid and used for spraying the paint liquid and forming a spraying range. And the movable frame is mounted on the base frame in a sliding manner and forms a shielding surface capable of adjusting the angle of the shielding line. The movable driving part is mounted on the base frame, the output end is connected with the movable frame, and the movable driving part is used for driving the movable frame to quantitatively slide. According to the spraying mode, overlapping spraying is not needed, a coating with a special thickness is not needed to cover the color of the lower layer to prevent bleeding, meanwhile, construction is convenient, the construction period cannot be prolonged, use of paint can be greatly reduced, and therefore the cost is reduced. Manual operation is not needed, and construction damage is avoided. Three-dimensional simulation construction, overall construction, observation and modification can be carried out in advance, and overall adjustment of the camouflage pattern is facilitated.

The invention relates to a dangerous rock falling motion trail and multistage protective net system simulation method and system, and the method comprises the steps: obtaining slope point cloud data, reconstructing a slope live-action three-dimensional model, and extracting slope elevation points; the elevation points of the slope surface are spread, a three-dimensional slope body model is established, and grids are divided; pFC loading is carried out to obtain an initial slope three-dimensional model; establishing a rockfall particle model, and loading the rockfall particle model to the initial slope three-dimensional model; model parameters are set, a gravity field is applied, and rockfall motion characteristics are obtained; the setting position of the combined protective net is determined and set; starting simulation, observing whether the combined protective net successfully intercepts rockfall or not, and if not, adjusting the setting until success; and optimizing the combined protective net according to the setting when the rockfall is successfully intercepted. According to the method, a curtain type protective net and passive protective net multi-stage energy dissipation combined model is established, the purpose of integrating dangerous rock falling and a protective structure for whole-process three-dimensional simulation is achieved, and a reference basis is provided for selection and design of the protective structure.

The invention discloses a left atrial appendage occlusion simulation method and system based on a CT image, and the method comprises the steps: reading CT image data of a patient, segmenting a left atrium and a left atrial appendage from the CT image data, and obtaining corresponding binary three-dimensional image data; reading a left auricle opening mark point set by a user, and calculating geometric parameters of the left auricle opening in combination with the binary three-dimensional image data; reading the opening of the inferior vena cava set by the user and another arbitrary point on the inferior vena cava, calculating the optimal atrial septum puncture site and the rotation angle of the left auricle occluder conveying sheath after entering the left atrium, calculating the corresponding conveying sheath movement track curve, and outputting or visualizing the calculation result. By utilizing the embodiment of the invention, more accurate left atrial appendage parameter acquisition, surgical path planning and three-dimensional simulation of the surgical process under the three-dimensional condition can be realized, and a doctor is helped to evaluate the surgical process before the surgery.

The invention discloses a three-dimensional GIS flight simulation system for ecological environment monitoring, and relates to the technical field of geographic information and three-dimensional simulation. The method comprises the steps that a cloud platform collects multi-source ecological environment monitoring data; preprocessing the collected multi-source ecological environment monitoring data, and constructing a three-dimensional simulation flight scene; in the three-dimensional simulation flight scene, smoothing the original flight path according to the preprocessed ecological environment monitoring data, and optimizing the flight path; extracting along-river data characteristics from the multi-source ecological environment monitoring data, analyzing a along-river flight path by using the along-river data characteristics, and optimizing the along-river flight path; and carrying out three-dimensional scene simulation on the optimized flight path in combination with the collected multi-source ecological environment monitoring data. According to the invention, the flight performance and the flight browsing fluency can be ensured.

The invention relates to the technical field of weather three-dimensional simulation, in particular to a three-dimensional dynamic simulation method and system based on multi-modal weather data. The method comprises the following steps: acquiring multi-modal meteorological observation data including ground observation station information, radar observation information and satellite observation information, and calculating a time difference value between observation time of each data source; taking the ratio of the time difference value to the spatial distance between the key observation points as a disturbance propagation speed; establishing a space-time correlation window based on the disturbance propagation speed, calculating a deviation correlation coefficient between the observation sources in the space-time correlation window, and judging an atmospheric state type through the deviation correlation coefficient; and mapping the atmospheric state type into a multi-source coordination parameter. According to the method, a proper range can be set according to propagation characteristics of a weather system through the space-time correlation window, observation data intensive with physical consistency is realized, and the problem of dislocation of different observation source data on timestamps or coverage ranges is effectively avoided.

This method for generating a marker on a three-dimensional object in a three-dimensional simulation comprises: generating first depth information in pixel units corresponding to a three-dimensional object, on the basis of information on the viewpoint from which the three-dimensional object is viewed; generating a reference plane on the basis of a predetermined statistical value by assigning a weight to the first depth information; on the basis of the reference plane, generating a marker curved surface covering the three-dimensional object; and generating a marker on the marker curved surface on the basis of a user input.

The invention relates to a construction method for a large-area arc-shaped glass roof curtain wall. The construction method comprises the following steps of construction preparation; the arc-shaped steel structure base, the arc-shaped glass and the machined part are manufactured in a workshop; carrying out field measurement, carrying out simulation positioning on the arc-shaped steel structure base on a computer by adopting computer aided design software according to a curtain wall design construction drawing and field actual measurement, then exporting the drawing to carry out field measurement, and converting a computer positioning point to field positioning; performing three-dimensional simulation pre-construction by adopting a BIM model, and performing visual technical disclosure for constructors; the arc-shaped steel structure base and the arc-shaped glass are sequentially installed according to the positioning points; caulking and sealing; carrying out a water spraying test; cleaning and checking; completing acceptance; the method has the advantages that computer-aided design positioning is combined with on-site construction measurement, an original pure on-site measurement method is improved, and the accuracy of curtain wall framework positioning and mounting is improved, so that the construction efficiency is improved, and the process is more mature.

The present invention discloses a three-dimensional simulation and prediction method for the fragmented rock movement considering a dynamic fragmentation effect during the impact process. The method includes: establishing a rock mass structure model; acquiring dynamic parameters under a real environment, including a collision position vector {right arrow over (p)}=(Px, Py, Pz), a collision linear velocity {right arrow over (v)}=(Vx, Vy, Vz), and a collision angular velocity {right arrow over (ω)}=(ωx, ωy, ωz); and simulating the collision, fragmentation, and movement processes of the rock mass. Based on the rock mass fragmentation model, whether the rock mass fragmentation occurs or not can be determined. Then, the trajectory of each fragmented block can be simulated using the energy distribution model and fragmented block trajectory model.

The invention aims to provide an efficient turning numerical control machining method for a nickel-based superalloy turbine disc, and belongs to the field of turning machining. The method comprises the steps of planning an optimal feeding path of a machining area, setting a machining sequence to control stress deformation of parts, selecting a proper machining cutter bar and a blade, setting three machining element parameters, modeling by utilizing UG software, compiling a numerical control machining program, and formulating a machining cutter table. Cutter path information is converted into a G code machining numerical control program through UG software post-processing, NCSIMUL software is used for conducting three-dimensional analog simulation on the machining numerical control program, and after it is determined that the cutter is free of interference, the cutter is applied to field actual machining. The machining and cutting difficulty of the nickel-based high-temperature alloy turbine disc is effectively reduced, the problems that in the part machining process, stress deformation is caused, the thickness of the top of the air seal tooth is very thin, deformation is prone to occurring, the requirement for the machining precision of the mounting edge is high, and deformation and out-of-tolerance are prone to occurring are solved, and efficient, accurate and stable turning numerical control machining of the nickel-based high-temperature alloy turbine disc is achieved.

The invention provides a bus efficiency evaluation method and system based on magnetic thermal stress coupling analysis, and relates to the technical field of multi-physics field coupling analysis, and the method comprises the steps: setting a preset aggregation scale, carrying out the three-dimensional simulation of a target domain bus, carrying out the cluster network reconstruction based on the preset aggregation scale, and determining a reconstructed bus topology; for the reconstructed bus topology, a magnetic-thermal-stress three-in-one physical field is constructed, an evaluation system based on a bus state is introduced, a lightweight evaluation module is supervised and trained, and the bus state comprises a ground state and an off state; sampling deployment of a target domain bus is carried out, bus distributed sensing sampling is triggered and transmitted back to the lightweight evaluation module, sampling data aggregation reconstruction and index system evaluation based on the bus state are executed, and the bus efficiency is determined. The bus performance evaluation method solves the technical problem that the evaluation result is inaccurate due to the fact that the bus performance evaluation method in the prior art mostly depends on analysis of a single physical field and cannot comprehensively reflect the performance of the bus in actual operation.

The invention discloses a cross-modal ultrasonic image segmentation method based on a conditional diffusion model and transfer learning. The method comprises the following steps: firstly, obtaining a three-dimensional original modal data set and a three-dimensional target modal data set and carrying out preprocessing; then constructing a conditional diffusion model, setting training parameters and training the model, and obtaining the trained conditional diffusion model and weight parameters of the conditional denoising network; reasoning the preprocessed three-dimensional original mode data set by using the trained conditional diffusion model, and translating the preprocessed three-dimensional original mode data set into three-dimensional simulation ultrasonic images with labels in batches; the trained weight parameters are migrated to the mixed attention segmentation network, and the segmentation network is pre-trained; and finally, carrying out fine tuning training on parameters of the pre-trained mixed attention segmentation network through a three-dimensional target modal training set by using transfer learning to adapt to three-dimensional real ultrasonic data, and taking a fine tuning model which has the best performance in the three-dimensional target modal training set as a mixed attention segmentation model to carry out image segmentation.

The invention relates to the field of automatic driving simulation design, in particular to a cloud collaboration design method and device, equipment and a storage medium. The method comprises the following steps: acquiring a driving video sample set and vehicle multi-mode driving parameters; vehicle behavior detail extraction is carried out on the driving video sample set, implicit behavior feature probability learning is carried out, and a driving behavior probability transition rule is generated; obtaining an automatic driving test requirement; performing simulation scene three-dimensional simulation on the automatic driving test requirement to generate a three-dimensional simulation driving scene model; carrying out elastic capacity expansion processing on the vehicle multi-mode driving parameters so as to generate a cloud driving data stream; generating a cloud distributed architecture data stream based on the cloud driving data stream; and performing distributed micro-service function abstraction on the three-dimensional simulation driving scene model based on a driving behavior probability transition rule and a cloud distributed architecture data stream, and constructing a cloud distributed simulation engine. According to the invention, an efficient and accurate automatic driving simulation design method is realized.

The present invention relates to the field of canal design and testing, and specifically discloses a numerical simulation method for the impact force of water flow on mooring piers under high-speed water flow, comprising: establishing a three-dimensional hub model based on the existing oblique intersection of the overflow weir outlet channel and the navigation channel under the ship lock; using three-dimensional simulation software to establish a water flow mathematical model based on the established three-dimensional hub model; using water level and flow velocity distribution data measured from the physical model of the hub where the mooring pier is located to identify and verify the water flow mathematical model, thereby obtaining an identified and verified water flow mathematical model; based on a fluid-solid coupling mathematical model, using the verified water flow mathematical model to perform fluid-solid coupling simulation under high-speed water flow, thereby obtaining a result of the water flow impact force on the mooring pier. The water flow impact force result obtained by the method of the present invention can improve the efficiency and accuracy of the water flow impact force simulation, can evaluate the structural stability of the mooring pier based on the water flow impact force on the mooring pier, and guide the design of the mooring pier, thereby ensuring the safety performance of the mooring pier during flood diversion.

The invention provides a training data generation method and device, electronic equipment and a storage medium. The method comprises the following steps: constructing a three-dimensional simulation environment constrained by a natural language navigation instruction; executing the natural language navigation instruction in a simulation environment corresponding to the three-dimensional simulation environment to verify the construction correctness of the three-dimensional simulation environment; if the navigation route is correct, verifying whether the navigation route described by the natural language navigation instruction is reachable in the three-dimensional simulation environment or not based on a navigation grid corresponding to a ground walkable area in the three-dimensional simulation environment; and if yes, generating training data of a visual language navigation task for the preset intelligent agent according to the natural language navigation instruction and the three-dimensional simulation environment. According to the method and the device, the diversity of the VLN training data and the consistency of the three-dimensional space can be considered, and the accessibility of the path corresponding to the navigation instruction in the three-dimensional environment is ensured while the data diversity is improved.

A system, method, and device are provided for creating a data processing pipeline to capture, transport, and interactively display in both recorded and real time any 3D volumetric simulation that was generated by a separate application. The system, method, and device enabling the interactive viewing of virtual and mixed reality simulations by a plurality of users.

A method for providing patient hemodynamic information includes obtaining a three-dimensional electronic model of the patient's coronary artery, obtaining first and second boundary condition model value sets, and performing first and second three-dimensional computational fluid dynamics (CFD) simulations of the model based on the first and second boundary condition model value sets. For each CFD simulation, a first pressure drop between a first location and a second location of the coronary artery is calculated. The method further includes determining, based on the first and second pressure drops, patient-specific parameters, determining an inflow rate boundary condition based on the patient-specific parameters, performing a third three-dimensional CFD simulation of the coronary artery model based on the inflow rate boundary condition, and calculating, according to the third CFD simulation, a third pressure drop for any location in the coronary artery model.

The invention discloses a lumped parameter and three-dimensional simulation combined hydrogen risk simulation method and a calculation device, and belongs to the field of nuclear power. The lumped parameter and three-dimensional simulation combined hydrogen risk simulation method comprises the following steps: providing an accident sequence, analyzing according to a lumped parameter analysis program to obtain a fluid state function in a containment, and establishing a three-dimensional analysis model of a containment risk area, combining with the one-dimensional analysis model of the lumped parameters of the non-risk region to obtain a combined analysis model; a fluid distribution field is obtained through calculation by means of the conjoint analysis model, and hydrogen risk analysis is conducted. According to the method, the model complexity and workload of hydrogen risk analogue simulation calculation are effectively reduced, and the calculation efficiency is effectively improved on the premise of ensuring the analogue simulation precision.

The metal plate ribbing machining method comprises the steps that a ribbing sample piece is tested, and deformation data are obtained; laser compensation is performed on preset deformation, and numerical control programming is performed; the conformity is verified through ribbing; and batch production. According to the method, metal plate ribbing parameters are adjusted through three-dimensional simulation analysis and three-dimensional visual inspection in combination with setting of a process test metal plate ribbing test, and ribbing machining is carried out according to design parameters. In the processing method, laser prefabrication compensation dosage is adopted to ensure that secondary processing is not needed after ribbing, and the assembling requirement is met; the production method is low in cost, secondary processing after ribbing is not needed, and the manufacturing cost and the maintenance cost of a blanking die and the high investment of a plate shearing machine are avoided; the auxiliary cost of secondary manual work or mechanical arm feeding and discharging production and the like is reduced; the process period is shortened, and the product production efficiency is improved; the method has universality, is not limited by change of product appearance conditions, can meet the requirement by changing a numerical control laser program, and does not need additional investment; after ribbing and compensation, no excess materials exist, and the material utilization rate is increased.

The invention provides a building fire risk dynamic assessment method and system, and relates to the technical field of fire risk assessment, and the method comprises the following steps: obtaining different types of building fire risk constitution factors, analyzing the fire risk influence key factors of different types of buildings, and obtaining a building fire risk assessment result; constructing a fire risk evaluation index system by using the fire risk influence key factors; acquiring fire risk factor data of a to-be-evaluated building in a current time period, and screening the fire risk factor data by using the fire risk evaluation index system to obtain corresponding fire risk influence key factor data and fire occurrence constraint conditions; constructing a three-dimensional analog simulation model of the building to be evaluated, and performing fire risk quantitative analysis in combination with the fire occurrence constraint condition and the three-dimensional analog simulation model to obtain a corresponding fire risk evaluation result; according to the invention, comprehensive and accurate quantitative evaluation is carried out on the building fire risk, and a powerful basis is provided for fire prevention and control.