45 results about "Continuous simulation" patented technology

The invention discloses a point cloud-driven thoracic cavity whole organ dynamic reconstruction and respiration monitoring method and system, and the method comprises the steps: constructing a three-dimensional geometric model corresponding to each target structure in a thoracic cavity based on the thoracic medical image data of a target object, and converting the three-dimensional geometric model into static point cloud data; driving the static point cloud data to perform dynamic deformation simulation in a respiratory cycle based on a respiratory movement rule of the target object to obtain dynamic point cloud data synchronized with a respiratory time phase; performing time-space synchronization association on the dynamic point cloud data and the electrical characteristic parameters, and constructing a digital twin thoracic cavity model; deploying a virtual sensing assembly which dynamically deforms along with the thoracic cavity in the digital twin thoracic cavity model, simulating and monitoring the dynamic breathing process of the target object, and generating a virtual physiological signal; and performing signal processing on the virtual physiological signal to obtain a dynamic reconstruction image reflecting respiratory movement. Continuous simulation of the full-breathing movement process is achieved, and the temporal-spatial resolution and diversity of a virtual database are improved.

A water quality simulation method for plant-network-river integrated water supply, comprising steps such as river channel water source simulation, dynamic analysis of the quality of water from a water sampling point, construction of a model for predicting the quality of water in a water supply pipe network, data interface development, one-dimensional simulation of hydrodynamics and water quality in a pipe network, and integrated model integration and automation. In the method, open-source software OpenFOAM and EPANET-MSX can be used to achieve continuous simulation and real-time update of water quality and hydrodynamic parameters from a river channel to a water supply pipe network by means of an automated script and data interface. The model integrates the treatment effects of water quality purification plants, and the water quality purification plants are simplified into processing nodes on a pipeline system, thereby ensuring the authenticity and accuracy of simulation results. The present method is easy to operate and implement, and allows for automatic generation of a water quality parameter time-series plot, thereby greatly improving simulation efficiency. Water supply enterprises and water conservancy departments can use the method to establish a water supply quality information management system, perform long-time series prediction, optimize daily management and maintenance, and formulate water quality safety guarantee measures, and the method has significant practical value and wide application prospects.

The invention relates to the technical field of analog simulation, in particular to a simulation method, device and equipment for OLED ink-jet printing and a storage medium. According to the method, simulation resources are configured in stages, stage switching is dynamically judged, and stage information is transmitted in order; the technical problem that in the prior art, a single modeling framework is difficult to consider simulation precision and calculation efficiency at the same time is solved. Specifically, stages are divided according to a physical evolution rule of an ink jet process, so that models of all stages are accurately matched with a dominant physical mechanism, dynamic characteristics of key behaviors such as ink supply response, liquid column necking and liquid drop form adjustment are depicted in detail, calculation redundancy of non-key stages is reduced through a self-adaptive simplification strategy, and the calculation efficiency is improved. Continuous simulation of the whole process from spraying starting to droplet deposition is achieved, physical quantity conservation and evolution consistency is ensured, the simulation precision and the calculation efficiency are remarkably improved compared with a traditional method, the pixel deposition consistency is effectively improved, and the actual process trial and error cost is reduced.

The application discloses a point cloud driven thoracic cavity whole organ dynamic reconstruction and respiratory monitoring method and system, and the method implementation comprises the following steps: based on the thoracic medical image data of a target object, constructing three-dimensional geometric models corresponding to each target structure in the thoracic cavity, and converting the three-dimensional geometric models into static point cloud data; based on the respiratory motion law of the target object, driving the static point cloud data to perform dynamic deformation simulation in a respiratory cycle, and obtaining dynamic point cloud data synchronized with the respiratory phase; synchronously associating the dynamic point cloud data with electrical characteristic parameters in time and space, and constructing a digital twin thoracic cavity model; deploying a virtual sensor assembly that dynamically deforms with the thoracic cavity in the digital twin thoracic cavity model, and simulating and monitoring the dynamic respiratory process of the target object, and generating a virtual physiological signal; and through signal processing on the virtual physiological signal, a dynamic reconstruction image reflecting the respiratory motion is obtained. The continuous simulation of the whole respiratory motion process is realized, and the time and space resolution and diversity of the virtual database are improved.

The application discloses a target dynamic continuous electromagnetic characteristic generation method and device based on a scattering center model and belongs to the technical field of target electromagnetic characteristic generation. The method comprises the following steps: discretely sampling attitude angles according to fixed sampling intervals in a full space to construct a target scattering center parameterization model database; acquiring four adjacent scattering center data corresponding to four adjacent sampling angles one by one from the database according to a simulation attitude angle at a simulation moment; calculating weighted and corrected scattering center data at the simulation moment by using an interpolation weighting method based on the four adjacent scattering center data; calculating scattering field data at the simulation moment; and acquiring scattering field data at a plurality of continuous simulation moments to generate dynamic and continuous electromagnetic scattering characteristic data. The application can effectively improve the phenomenon that the generated target SAR / ISAR image does not conform to the actual situation and the azimuth side lobe is expanded.

An integrated hydrodynamic and water quality simulation method for water supply systems of water treatment plants, pipe networks, and rivers includes steps of river water source simulation, dynamic analysis of water quality at the water intake, construction of a water supply pipe network water quality prediction model, data interface development, one-dimensional pipe network hydrodynamic and water quality simulation, and integrated model integration and automation. The method can utilize open-source software, and through automated scripts and data interfaces, realize the continuous simulation and real-time update of water quality and hydrodynamic parameters from rivers to water supply pipe networks. The model integrates treatment effect of water treatment plants, which are simplified as treatment nodes in the pipeline system, ensuring the authenticity and accuracy of simulation results. This method is not only easy to operate and implement, but also can automatically generate time-series graphs of water quality parameters, significantly improving simulation efficiency.

The invention discloses a particle earth and rockfill dam large deformation calculation method based on node integration, and relates to the technical field of geotechnical engineering large deformation. The method comprises the following steps: establishing a generalized shape function and a strain displacement matrix of a proportion boundary finite element SBFEM under a Laplacian equation; under an updated Lagrange framework, state variables at Gaussian integral points of the triangular SBFEM unit are projected to nodes through a strain smoothing technology, a momentum equation is converted into a balance equation based on node integration through a virtual work principle and a Green divergence theorem, and the dynamic equation is solved through a central difference method; and when the grid distortion degree reaches a significant level, discarding the current grid and performing re-grid division. All state variables such as stress, displacement, speed and the like are concentrated on nodes of abandoned grids, so that the subsequent grid generation and calculation process can be seamlessly continued. According to the invention, continuous simulation of the whole large deformation process based on the proportional boundary finite element method is realized.

The application provides a method for generating a silica gel appliance for guiding counterclockwise rotation growth of a lower jaw, and has the characteristics that three-dimensional data of a user's dental arch is obtained, and a basic appliance three-dimensional digital model is constructed according to the three-dimensional data of the user's dental arch; current lower jaw plane angle data is obtained, and a plurality of continuous simulation stage appliance shaping forms in the vertical direction, the horizontal direction and the sagittal direction are constructed according to the current lower jaw plane angle data and the basic appliance three-dimensional digital model, and the plurality of continuous simulation stage appliance shaping forms can promote counterclockwise rotation of the lower jaw forward and upward; mechanical simulation analysis is performed on the basic appliance three-dimensional digital model, and a target appliance three-dimensional digital model is obtained; manufacturing data output by the target stage appliance three-dimensional digital model is converted into manufacturing instructions, and a corresponding appliance mold is manufactured or a corresponding appliance is printed according to the manufacturing instructions by driving a printing device.

The application belongs to the technical field of aircraft in-flight refueling, and particularly relates to a test simulation system and method for fuel delivery characteristics of a refueling pod, comprising: a ground controller, a steel fuel tank of a refueling aircraft, an in-flight refueling pump set, a fuel delivery pipeline, a negative pressure fuel tank of a receiver aircraft, a flight environment pressure simulation box, a ram turbine pump of the refueling pod, an electro-hydraulic proportional valve, a high-speed hydraulic motor, a refueling hose, a refueling and receiving assembly, a pressure regulating valve, a receiving flow regulating valve and a receiving flow sensor. The ground controller adjusts the rotating speed of the ram turbine pump of the refueling pod directly connected with the hydraulic motor through the electro-hydraulic proportional valve according to the command of a pressure regulating controller of the refueling pod, so that the pressure regulating process simulation of the refueling pod is realized. The ground test controller changes the opening degree of the regulating valve to simulate the change of the receiving flow, so that the verification of the fuel delivery characteristics of the refueling pod under different receiving flows is realized. The negative pressure fuel tank of the receiver aircraft is provided with an oil discharge pump, so that the continuous simulation of the receiving process is realized.

Aiming at the problems of low efficiency, path oscillation, local optimal trap and the like of a traditional parameter fixed algorithm in a complex environment, the invention provides an unmanned ship adaptive path planning method considering local obstacle density. The method comprises the following steps: firstly, calculating and expanding node neighborhood obstacle density in real time, adaptively adjusting a gravitational repulsive force coefficient and a mixed weight of node expansion, and hierarchically switching an exploration step length, so as to improve planning efficiency and environmental adaptability; secondly, a composite navigation potential field is constructed by fusing target gravity, obstacle repulsive force and boundary repulsive force, and safety balance of narrow channel and boundary navigation is achieved. And finally, through redundant node pruning, path turning point stretching optimization and cubic B-spline smoothing processing, path curvature continuity is ensured. Simulation and experiments show that compared with a traditional method, the algorithm has the advantages in the sampling point number, the path length and the success rate, the search efficiency is remarkably improved, the search space is compressed, and the unmanned ship task requirement is met.

The application provides a large-span crossing water area conductor dismantling and releasing process construction calculation method, and belongs to the technical field of power transmission line construction simulation. The method first acquires tower position, materials, environment, construction control and other engineering basic data, and establishes a three-dimensional finite element model of the conductor composed of eight-node three-dimensional entity units; then constructs a global stiffness equation, and applies external loads such as self-weight, hydrodynamic load and constraints such as releasing end and riverbed contact in combination with construction stages and spatial positions; the precondition conjugate gradient method is used to solve the equation to obtain node displacement, and then the mechanical parameters of the unit are calculated and the conductor cracking and shearing states are identified; finally, the conductor geometric shape is updated, and the releasing and collecting process simulation is iteratively completed. The application realizes continuous simulation of the whole construction process, comprehensively considers the coupling effect of multiple loads, improves the stress deformation analysis accuracy, can output multiple construction evaluation indexes, is suitable for construction simulation of various types of slender flexible components, and has good engineering popularization.

The invention provides an At-211 online separation process simulation method and platform based on digital twinning, relates to the technical field of data processing, and identifies a separation behavior evolution mode based on a data change association relationship in a continuous time interval by collecting process monitoring data reflecting a material distribution state and separation result change in a separation process. And dividing the separation process into a plurality of operation segments. And aiming at different separation behavior evolution modes, respectively constructing digital twin simulation sub-models with different state variable composition modes and state change constraint conditions. In the online simulation process, the corresponding relation between the current separation behavior evolution mode and the adopted digital twinborn simulation sub-model is continuously judged, continuous simulation is maintained when the current separation behavior evolution mode is consistent with the adopted digital twinborn simulation sub-model, existing state continuation is terminated and switched to the matched digital twinborn simulation sub-model when the current separation behavior evolution mode is inconsistent with the adopted digital twinborn simulation sub-model, and the subsequent simulation evolution process is reestablished. Therefore, simulation of the multi-stage operation state of the At-211 online separation process is realized.

The invention discloses a flood deduction method capable of being embedded into an embankment breach in real time based on man-machine interaction. The method comprises the following steps of 1, obtaining basic data; step 2, deducing regional grid discretization; step 3, performing model parameter assignment and initialization; 4, model flux calculation; 5, setting a model thread; step 6, packaging the model; and step 7, terminal man-machine interaction setting. According to the method, the new breach can be added in real time in the model calculation process, the breach information is transmitted to the running model main thread in real time by adopting a double-thread technology, uninterrupted continuous simulation of the water flow process is realized, the defect that the breach position can only be fixed in advance in an existing dike burst flood deduction mode is overcome, and the method is suitable for large-scale popularization and application. And a new and more flexible flood deduction mode is provided for intelligent water conservancy informatization construction.

The invention belongs to the technical field of coal mining simulation tests, and particularly relates to a fault zone tunneling and grouting integrated rock burst simulation test system and method. The test system comprises a triaxial confining pressure loading unit, a modular boundary constraint unit, a data monitoring feedback unit, a roadway tunneling unit and a fault grouting unit. The modularized boundary constraint unit comprises a test cavity which is defined by a first loading plate, a second loading plate, a third loading plate, a fourth loading plate, a first barrier plate and a second barrier plate and is used for accommodating a sample; each of the first loading plate and the second loading plate comprises two segmented plates, and the two segmented plates are connected through an inclined plane; the defect that a traditional test process is split is overcome, integrated continuous simulation from stress loading, fault slippage, tunneling disturbance to grouting reinforcement is achieved, and reliable experimental equipment and theoretical support are provided for deep underground engineering disaster prevention and control.

The present invention discloses a method for simulating abrasive jet machining of particle-reinforced composite materials based on a discrete element method, comprising: obtaining machining process simulation parameters according to an actual machining system; establishing a geometric model of an abrasive jet and a composite material at a millimeter scale, dividing a structured grid based on the finite element method to perform macroscopic mechanical simulation calculations of the abrasive jet and the plate, and obtaining the stress and dynamic pressure distribution on the surface of the composite material; establishing a geometric model of the composite material particle phase and matrix phase at a micrometer scale, dividing an unstructured grid based on the finite element method, and setting the material parameters of the particle phase and matrix phase, applying the surface stress and dynamic pressure distribution results of the material in the millimeter-scale simulation calculation as pressure boundary conditions to the upper surface of the matrix phase geometric model in the micrometer-scale model, and performing continuous simulation calculations. The present invention provides guidance for abrasive jet machining of particle-reinforced composite materials, reduces trial and error costs, and improves the efficiency of abrasive jet machining of particle-reinforced composite materials.

The invention discloses a tactical simulation deduction method based on heterogeneous computing power collaboration, and relates to the technical field of tactical simulation deduction, and the method comprises the following steps: constructing a simulation index structure used for distinguishing an initialized unit from a non-initialized unit, recognizing a newly-added combat unit in a simulation operation process, and carrying out the calculation of the newly-added combat unit; marking the newly added combat unit as a temporarily added combat unit based on the identification result; the method comprises the following steps: acquiring state change data and behavior instruction sequences in a plurality of continuous simulation frames on the basis of a marked temporarily-added combat unit, constructing a behavior event sequence matrix, calculating a behavior change quantity between frames by adopting a sliding window weighted summation algorithm, and establishing a short-time behavior change speed index on the behavior event sequence matrix. According to the method, the problem that the calculation power adaptation is not accurate when a combat unit is temporarily added is solved, the heterogeneous calculation power resource dynamic adjustment based on the behavior change speed is realized, and the simulation response efficiency and the time sequence precision are improved.

The invention discloses a simulation working condition test method for remote vehicle control, and the method comprises the specific steps: S1, obtaining various simulation working condition data for remote vehicle control, and constructing a simulation working condition database based on the simulation working condition data; s2, calculating relevance weights among the simulation working conditions, quantifying relevance strength among the simulation working conditions based on the relevance weights, and constructing a continuous simulation working condition combination according to the relevance strength; s3, determining a working condition stage and a transition stage in the simulated working condition combination, generating a remote control instruction according to the type of the working condition stage, and meanwhile, generating an interference event and injecting the interference event into the transition stage; s4, a remote control instruction is sent to the tested vehicle, dynamic parameters of the tested vehicle in the transition stage are collected, and the performance of the tested vehicle is evaluated based on the dynamic parameters; different from traditional single simulation working condition detection, a transition stage between simulation working conditions is introduced, so that dynamic parameter acquisition in the transition stage can be focused, and the accuracy of a safety test result is ensured.

The present application relates to the technical field of simulation, and particularly relates to an OLED inkjet printing simulation method, device, equipment and storage medium, the method solves the technical pain point that a single modeling framework is difficult to consider simulation accuracy and calculation efficiency in the prior art by configuring simulation resources in stages, dynamically determining stage switching and sequentially delivering stage information; specifically, stages are divided according to the physical evolution law of the inkjet process, so that each stage model is accurately matched with the dominant physical mechanism, the dynamics characteristics of key behaviors such as ink supply response, liquid column necking, droplet shape adjustment and the like are finely depicted, calculation redundancy of non-key stages is reduced through an adaptive simplification strategy, continuous simulation of the whole process from jet start to droplet deposition is realized, physical quantity conservation and evolution consistency are ensured, simulation accuracy and calculation efficiency are significantly improved compared with traditional methods, pixel deposition consistency is effectively improved, and actual process trial and error cost is reduced.

The application discloses a flood deduction method based on human-computer interaction and capable of embedding embankment breach in real time, and the method comprises the following steps: step 1, acquiring basic data; step 2, deducing regional grid discretization; step 3, model parameter assignment and initialization; step 4, model flux calculation; step 5, model thread setting; step 6, model encapsulation; and step 7, terminal human-computer interaction setting. The method can add a new breach in real time in the model calculation process, adopts a double-thread technology to transfer the breach information to a main thread of a running model in real time, realizes uninterrupted and continuous simulation of a water flow process, overcomes the defect that an existing embankment breach flood deduction mode can only fix a breach position in advance, and provides a new and more flexible flood deduction mode for intelligent water conservancy informatization construction.

The invention discloses a crystal plasticity finite element mesh mapping method based on MATLAB. The method comprises the steps that S1, a complete machining procedure is divided into a plurality of continuous small-deformation machining steps; s2, establishing a first state model A in the ABAQUS according to the first processing step, generating an ABAQUS output INP-A file, and outputting a state variable SDV-A of the model in the first processing step; s3, establishing a second state model B according to the second processing step, and generating an INP-B file; s4, reading SDV-A data of the first state model A by using MATLAB, performing data conversion on the SDV-A, constructing a crystal plasticity constitutive model of the second state model B by using the converted SDV-A data, and realizing material endowing by modifying an INP-B file; the problem of calculation interruption or result distortion caused by serious distortion of a finite element grid in a large deformation process can be solved; continuous simulation of the multi-pass machining process is achieved, and the transmission precision of physical quantities among different machining steps is ensured.

The application discloses a cabin dynamic ballast method for float-over operation model test, and relates to the technical field of ocean engineering, and comprises the following steps: S1: obtaining the finite element model, mass parameters and barycentric coordinates of a barge empty model, obtaining the finite element model, unballasted mass and barycentric coordinates of a barge cabin model, and calculating the initial mass and barycentric coordinates of the float-over operation barge; S2: setting predetermined ballast parameters of the float-over operation barge; S3: setting a barge positive float target optimization function, a maximum inertia moment target optimization function and a draft target optimization function, and setting a constraint condition; S4: calculating the mass of ballast water in each cabin at each time through an optimization algorithm, and performing ballast control; S5: obtaining the mass increased in each cabin during the ballast process, calculating the mass and barycentric coordinates of the float-over operation barge ballast process, and returning to S4. The method can realize continuous simulation of load transfer in the float-over operation process in the physical model test.

The application provides an At-211 online separation process simulation method and platform based on digital twinning, relates to the technical field of data processing, and identifies a separation behavior evolution mode based on a data change correlation relationship in a continuous time interval by collecting process monitoring data reflecting material distribution states and separation result changes in a separation process, and divides the separation process into multiple operation segments accordingly. Different digital twinning simulation sub-models are constructed for different separation behavior evolution modes, with different state variable composition modes and state change constraint conditions. In the online simulation process, the correspondence between the current separation behavior evolution mode and the digital twinning simulation sub-model is continuously determined, and when the correspondence is consistent, continuous simulation is maintained, and when the correspondence is inconsistent, the existing state is continued and switched to the matched digital twinning simulation sub-model, and the subsequent simulation evolution process is re-established, so that the simulation of the multi-stage operation state of the At-211 online separation process is realized.

The application discloses a simulation video generation method, device and program product for warehouse operation training, and relates to the technical field of artificial intelligence, aiming to solve the problem that the quality of simulation video needs to be improved. The method comprises the following steps: acquiring multi-modal input data of warehouse operation training; and generating continuous simulation video frames of warehouse operation training based on the multi-modal input data and a pre-trained generative world model. The generative world model comprises a multi-modal encoding layer, a multi-modal feature fusion layer, a cross attention layer, a multi-layer perception (MLP) module, an action adaptation module and a video decoder. The cross attention layer comprises a rotation position encoding (RoPE) module, a self-defined rule mask layer and a causal mask layer.

The invention provides a battlefield visual information key point random implantation and dynamic generation simulation method and system, and relates to the technical field of simulation, and the method comprises the steps: obtaining the original visual data of a battlefield scene, constructing a key point implantation rule set based on a scene topological structure, generating implantation parameters through employing a randomization strategy, and carrying out the random implantation and dynamic generation of key points. And implanting key point features in corresponding spatial positions, establishing a mapping relationship with a scene structure, dynamically updating key points in response to view angle and scene change, and generating continuous simulation data. According to the method, the authenticity and diversity of battlefield visual information are improved, and the immersion and effectiveness of simulation training are enhanced.

The invention discloses a supermarket multi-mode self-adaptive service method and system based on digital twinning. The method comprises the following steps: collecting physiological state data through a multi-mode non-sensing network; using the dynamic differential equation model to construct and update the state vector of the user digital twin; inputting the state vector into a dynamic knowledge graph decision maker to generate a service strategy; and controlling a flexible actuator network execution strategy based on a calculation result of the multi-parameter intention recognition model. According to the method, a dynamic differential equation model is creatively adopted to realize continuous simulation and prediction of a user state, a phase field kinetic equation is utilized to drive adaptive evolution of a knowledge graph relation weight, and accurate intention recognition and flexible triggering are realized through a multi-parameter probability function; the problems of perception fragmentation, understanding superficial layer, decision islanding and interaction mechanization are effectively solved, and the service normal form change from passive response to active foreseeing and natural adaptation is realized.

The invention discloses a land resource asset servicing time sequence simulation method, which comprises the following steps: acquiring construction map spot data of a target area in historical years, and performing spatial rasterization processing to obtain a grid map layer in a map spot state in multiple years; calculating a current land resource asset servicing resistance comprehensive value of each grid layer based on a preset servicing resistance evaluation system; constructing a space-time probability prediction model, and performing parameter fitting by using map spot data for construction in historical years; calculating the prediction probability of each grid layer in the target year based on the fitted space-time probability prediction model; the servicing resistance comprehensive value and the prediction probability of each grid layer are synthesized, and a servicing implementation potential value of each grid layer is calculated; and based on the servicing implementation potential value, generating a suggested scheme for guiding a land resource asset servicing implementation time sequence. According to the method, the limitation of traditional static evaluation is overcome, continuous simulation of a servicing time sequence is realized, and a decision basis is provided for medium-and-long-term land servicing planning.

The invention provides an alloy steel refining temperature zone control method and system, and the method comprises the steps: S3, obtaining a heat transfer efficiency index from a corrected flow model, and calculating dynamic heat balance distribution according to an alloy component segregation risk; s4, if the dynamic heat balance distribution displays local overheating, tracking melt particle motion, and determining an optimized path adjustment scheme; s7, real-time monitoring data are obtained from the final temperature zoning scheme, and the stable state of a melt flowing path is obtained through continuous simulation circulation according to interaction of a high-temperature melting zone and a low-temperature cooling zone; and S8, according to the stable state, a dynamic regulation and control mechanism of the heat transfer efficiency is determined, and if the regulation and control mechanism meets the balance condition, a complete smelting control protocol is output. The heat transfer efficiency in the smelting process and the stability of the alloy quality are remarkably improved.

The invention discloses an LTspice-based neuron simulation system fused with time, and the system comprises a time module which is used for determining the moment when a neuron starts to work according to the input voltage of an input moment; the comparison module is used for calculating a third voltage at the current moment according to the first voltage and the second voltage at the previous moment; the state module is used for generating the first voltage at the current moment according to the third voltage at the current moment; the neuron module is used for calculating the second voltage at the current moment according to the moment when the neuron starts to work, the third voltage at the current moment, the on-state resistance and the off-state resistance; wherein the comparison module is further used for generating a third voltage at the next moment based on the first voltage and the second voltage at the current moment, and continuous simulation of neurons is achieved. Through the above structure, the system can simulate the dynamic characteristics of an LIF neuron circuit affected by parasitic capacitance, and significantly improves the accuracy and practicability of LIF neuron modeling and simulation.

The application discloses a virtual game device for racing car collision simulation and a simulation method thereof, and belongs to the field of virtual game devices. The device comprises a base and a control system. A plurality of swing columns driven by swing motors are arranged on the base. Swing frames are movably connected to the end of the swing columns. A display screen, a main shell and a seat are arranged on the swing frames. A sleeve is arranged on the main shell. A gear shifting tab is arranged on the outer wall of the sleeve. A steering failure simulation device is arranged in the sleeve. When the rotating sleeve is locked by the brake assembly, the limiting key synchronously limits the rotation of the spline shaft, realizing the steering wheel jamming failure simulation. The feedback motor and the lifting seat are used in cooperation, realizing the continuous simulation of the loose feeling of the steering wheel after the collapse and the periodic torque fluctuation of the steering wheel after the suspension deformation, and solving the problems that the existing simulator cannot simulate the mechanical pathological state of the steering system after the collision and cannot continuously provide the steering force feeling matched with the damage state.

The present invention discloses a method for optimizing the deployment of roadside perception units under partial vehicle-road cooperative conditions, which belongs to the technical field of optimized deployment of roadside perception units. The method includes establishing traffic scenarios, obtaining true probability occupancy grids of various traffic scenarios through multi-time-step continuous simulation; performing parameterized perception modeling of roadside perception units and intelligent connected vehicles, establishing a ray tracing algorithm that considers occlusion effects, obtaining observable probability occupancy grids under vehicle-road cooperative perception conditions through the ray tracing algorithm that considers occlusion effects, and proposing to use the cross entropy of the true probability occupancy grid and the observable probability occupancy grid as an alternative evaluation indicator of vehicle-road cooperative perception for traffic flow monitoring, so as to optimize the deployment of roadside perception units; introducing POG into the field of RPU optimized layout provides a specific and complete technical framework, which solves the problem that the existing technology does not adequately consider the impact of ICV when carrying out RPU optimized layout modeling.