Design Of Virtual Driving Test System

With the continuous development of virtual reality and Human-Machine Interaction technology,there are many systems simulation and applications combined with virtual reality technology in various fields,such as virtual game,virtual industrial simulation,virtual teaching classroom development and application.In the field of driving test training,the development of virtual driving simulation system has become a research trend.The training test field of Tonghe Driver Training School in Hohhot is as the basement in this paper,and uses the 3D modeling software 3ds Max and the virtual development engine Unity3d to design and develop a virtual driving training and examination system.The system has a strong sense of reality and Human-Machine Interaction,it can meet the teaching and training needs of driving students.It has a certain practical significance and application value.The main work of this paper is as follows:1.The three-dimensional scene of virtual driving system is created.The virtual scene model of the driving test system is established by 3ds Max which combined field pictures and site parameter measurement data,and realized the creation,optimization and texture mapping of the scene model,then the model is imported into Unity3d to complete the scene rendering and visualization construction for the further development and design.2.The virtual scene vehicle motion control is realized.Vehicle dynamics system model is simplified,the working conditions of vehicle movement is analyzed,and the motion control script of vehicle is written in C#language combined with Unity3d's built-in physical engine.The vehicle control of the virtual scene is realized,and detailed control of the turn signal and other details is simulated.The data communication between the hardware device and the driver is completed,and the motion of vehicle in virtual scene is real-time controlled according to hardware input analog and switch information.3.The teaching guidance function of the virtual driving test system is implemented.The UI interface of virtual driving test system is designed,and the management and control of the scene is realized through the control script.In combination with the practical teaching of driving mode and test specification,the function of virtual driving exam system training guidance is designed and implemented,including perspective switching,score evaluation logic,voice broadcast system and auxiliary driving function of the HUD suspension graph and text.Finally,the system is tested and released.