Research On Vehicle Anti-Collision Cnotrol Technologies Based On Two Networks

Focusing on the requirement of the traffic safety situation in china, the application situation and the development trend of automobile electronic technologies in china and abroad; synthesizing the principles of traffic safety, vehicle electronic, communication and advanced control technologies; according to necessity, feasibility, utility and economy, the paper puts out the scheme that designs the vehicle anti-collision control system to produce the warning that can remind driver to take some corresponding measures in order to reduce or avoid the collision when the vehicle falls into the danger of collision.A safety distance model is established based on academic analyze. The system's structure is confirmed. The useful information is collected by bluetooth model, radar and CAN networks. Then, the center control unit is used to judge the vehicle safety status with the safety distance model reminds driver to take some corresponding measures by executive unit or sends the brake signal to vehicle. The communication between all units is based on an advanced automobile communication technology——CAN bus serial communication technology, which has a good capability, to ensure the real-time and reliability of system during the data exchange.Real-time, precision and reliability of system is fully considered. A single chip Microcomputer of 32 bits LPC2119 series is used to be the control center of the system, and analyzes the work environment of system. According to the principle of the software and hardware of the controlling monitor system, during the course of the design of the software and hardware of system, the software and hardware anti-jamming technologies have been taken into account and applied. Finally, the simulation results based on CANoe prove that the CAN bus of anti-collision control system based on two networks is reasonable and feasible, judge the current safety situation of vehicle based on the mathematical model of safety distance, and provide the information of safety situation of vehicle for the driver in time.The research of anti-collision warning system lives up to the development direction of the intelligent vehicle technology, the application of this system can guarantee vehicles safety, so it will help to increase transport efficiency and have a good prospect of application and economy.