Research On Vehicle Anti-collision Warning Based On DSRC Vehicle Communication

In recent years,with the increase of vehicles,traffic accidents are increasing,how to solve traffic safety problems becomes a practical topic.With the development of intelligent transportation technology,vehicle can achieve anti-collision warning through interacting vehicle traveling information,and this option ensures safe driving and reduces traffic accidents.Therefore,this paper designs a vehicle communication warning system based on DSRC,it can process vehicle anti-collision algorithm by acquiring vehicle status information,and it will warn drivers if there are dangerous.Firstly,this paper is about the design of vehicle communication warning system based on DSRC.This system includes vehicle equipment and application layer module.Vehicle equipment has positioning module to achieve high-precision vehicle positioning and DSRC module to achieve communication with adjacent vehicle.Vehicle equipment connects with application layer module by interior LAN.Application layer module is designed and realized by Android,which includes data acquisition and processing module,and warning display module.Secondly,the paper focuses on vehicle anti-collision warning algorithm,and puts forward an innovation based on the original safety time algorithm TTC,the innovation is about different security warning time threshold based on different vehicle speed,and it can achieve appropriate warning timing.Finally,system is established for real vehicle experiment,and the test includs DSRC performance,positioning performance and vehicle anti-collision warning algorithm performance.The test results show that vehicle communication warning system based on DSRC which is designed by this paper is feasible and reasonable,and it can well achieve vehicle anti-collision warning function.In this paper,DSRC is used in Vehicular communication to receive real-time information,then the information is processed by the improved vehicle anti-collision warning algorithm,so system has good practicability and innovation,and it has great significance for assisting traffic safety driving.The main contents of this paper include:1.design of vehicle communication warning system based on DSRC;2.design of warning system application module by Android;3.design of improved vehicle anti-collision warning algorithm;4.through real vehicle experiment,DSRC performance,positioning performance andvehicle anti-collision warning algorithm are tested,and the test results are analyzed and concluded.