Research Of Interactive Visual Simulation Technology Base On CVIS Environment

With the rapid development of urbanization, traffic congestion, traffic accidents, environmental pollution and other issues have become an important focus point among the world. Intelligent transportation system (ITS) can bring considerable social and economic benefits by reducing traffic congestion, reducing traffic accidents, reducing environmental pollution. As one of research directions of ITS, cooperative vehicle infrastructure system (CVIS) has attracted the attention of domestic and foreign researchers. CVIS is a complex large system, which is very necessary to simulate and verify before it is put into use. With the development of simulation technology, the visual simulation technology has been expanded to all aspects of life. Together with the interaction technology, visual simulation will provide immersive simulation experience for the user. In this paper, combined with the CVIS simulation and interactive visual simulation technology, an interactive visual simulation platform is built, which can provide visual display, human-computer interaction and the user participation, to realize the organic combination of the macroscopic simulation and microscopic simulation of CVIS and provide a more effective way for the traffic simulation.The main contents contained in this paper are as follows:(1) Traffic simulation environment is built, including road network, vehicles, city environment and other traffic simulation elements. At the same time, the driver in real life is connected to the simulation platform with corresponding hardware device, so that the driver can drive the car in virtual environment just as in real life. (2) Interactive dynamic mapping model is studied, which projects the action of the driver’s arm to the virtual environment, in order to drive the virtual arm do some actions with 5DT data glove and VM-i inertial sensor. In addition, a driver machine interface (DMI) is built to provide some warning information. (3) An interactive visual simulation platform is achieved which allows drivers drive the car in virtual environment directly. And as necessary, a traffic flow model considering the driver’s characteristics is designed, which combines with the starting and stopping model of the vehicle to enhance the reality of simulation platform. And also the tests for the platform are done. (4) Finally, based on CVIS, the typical application scenarios are established and interactive simulation of these scenarios are realized.Through the interactive visual simulation platform designed in this paper, the simulation staff can participate into the simulation of CVIS, to analyze and verify its function. In addition, driver is involved into the traffic simulation scenes, allowing correlative staff collecting driver’s data, analyzing driver’s behavior, finishing driver’s training and so on. By the experiments, the interactive visual simulation platform designed in this paper can complete the above functions perfectly, providing reference for the simulation and development of the CVIS.