Development Of Parameterized Virtual Simulation System For Vehicle Operating Environment

With the rapid development of Virtual Reality which takes Image Generation Technology as the core,building the Virtual Driving Platform to carry out various simulation experiments about human-vehicle-road system study has gradually become an important way to study vehicle and highroad traffic safety.In the view of shortcomings of the existing vehicle operating environment virtual simulation technology and the existing simulation platform,efficient and fast visual simulation technology for vehicle operating environment is studied in this paper from the point of view of parameterized modeling.And on this basis this study designs,develops and realizes the Parameterized Virtual Simulation System of Vehicle Operating Environment.The algorithm model of highroad alignment location in vehicle operating environment under virtual environment has been studied and deduced in this paper.In order to realize the accurate location of long distance highroad alignment in the virtual simulation of vehicle operating environment,this paper researches the alignment location algorithm for all types of road section under virtual vehicle operating environment.And the location model of key reference points for highroad sections,based on which the points' 3D coordinate data for rending visual simulation model under vehicle operating environment can be calculated,is further deduced in this paper,as a kind of data sources provided for the subsequent parameterized modeling.The parameterization modeling method and implementation technology of vehicle running environment are studied and implemented.With the idea of parameterized modeling introduced into the modeling method of vehicle running environment,and on the basis of the key reference point positioning model,the method of parameterized modeling of vehicle running environment is developed by using the secondary development programming interface OpenFlight API of Multigen Creator.Proceeding from the data management demand of simulation system,a structured data management platform is designed and implemented based on Access database development technology.The Parameterized Virtual Simulation System of Vehicle Operating Environment is designed and developed in this paper.The architecture and function modules of the simulating system are designed according to the simulation demands of the vehicle operating environment.Based on Visual C++ platform,the parameterized modeling of vehicle operating environment is realized through OpenFlight API interface development technology.The system uses ADO DLL method to access the system database,and realizes data interaction with the simulation system by developing a structured data management platform.