Research Of Vehicle Network And Vehicle Operational Control Simulation Method

With the rapid development of economy, the process of urbanization is accelerating,the amount of car ownership and the rapid increase of road traffic, traffic congestion,traffic safety and other issues become more serious. In the face of the increasing demand for traffic, the intelligent transportation technology, the vehicle network, as an integrated network technology of wireless communication and control has become an important development direction, which is an effective way to solve the traffic problems, has been greatly developed. The vehicle network is a cross-disciplinary interdisciplinary system based on the intelligence of the vehicle, including information collection, data transmission, large data processing and integrating, information integrated application and publishing, intelligent travel service. The vehicle network's advanced sensor technology, wireless communication and new generation of Internet technology, all-round realization of human-car-environment dynamic real-time information exchange, and in the whole space-time dynamic traffic information collection and integration based on vehicle active safety control and road coordination management can ensure traffic safety and improve the efficiency of the passage, thus forming a safe, efficient and environmentally friendly road traffic environment.This paper simulates the real vehicle network system based on the HLA architecture.The main research content including: Design of the framework of vehicle network based on HLA architecture; Early warning forecasting model under typical traffic scene; The realization, testing and verifying of the vehicle network simulation platform and etc.This paper studies the traffic environment generation method and the vehicle behavior control simulation method based on the secondary development of Q-Paramics.Analyses different purpose of simulation (function test, scene verification) and the need for vehicle network from different aspects. Three simulation modules of the unified interface model under the HLA architecture are developed, which are: vehicle information interaction model, vehicle forecasting and warning model and vehicle control model. In order to verify the simulation algorithm, the parameters such as packet loss rate and information delay are compared, and the parameters and models of the traffic system are evaluated. Under the support of HLA, each module is integrated by interface to form a multi-functional unified vehicle network simulation platform. Through several experiments, the reliability of the simulation method and the effectiveness of the vehicle network system are verified.