Automobile Side Collision Warning System

Rapid increase in car ownership in China, more and more high-speed car, driving safety as the main traffic problems. Our incidence of road traffic accidents, especially fatal accidents. To sum up, mainly in the following categories: front and side and rear-end collision, roll, and so on. According to statistics, side impact has a large proportion, it is about 50% of the front impact,it is the second place of the collision.Therefore, the vehicle side collision warning system is produced. It is a set of vehicle engineering, ergonomics, communications technology and computer technology and other subjects in one field theory and complex systems. Based on the problem of vehicle safety considerations to study the vehicle anti-collision technology, our aim is to study auto safety driving system to provide theoretical and technical support. Paper through the objective analysis of the status of automotive technology,Discuss the lane changing and overtaking vehicles in the lateral process of the collision.Paper summarizes the status of domestic and foreign vehicle collision avoidance system, the system combines actual needs ,and propose the mathematical model and design.the paper used ATmega16 as the system's control components, the paper use the ultrasonic sensors as the lateral distance sensor. Paper describes the design concept and function of each unit module, the work environment through the system analysis, system hardware and software design solutions.