根據多傳感器接收到的前方車輛目標信息和本車的狀態信息，利用多源信息融合技
術，識別出本車前方車輛的距離和速度等狀態信息，并進行碰撞危險估計，是一種主動式的防撞、防抱死的汽車安全系統，它使反應時間、距離、速度三個方面都能得到優化控制，同時也為提高使用車速、增加道路通行能力、實現自動化駕駛等奠定了良好的基礎。
[關鍵詞]：傳感器，速度，自動控制，單片機
[Abstract]:the status messages for distance and speed of the forword voiture can be
identified by receiving information from the forword and this car based on the multi-sensor
and using the technic of multi-source information crasis,and then estimate the collision
risk.This is a kind of safety system for the car which can prevent collision and death
actively , and optimize the control of reaction time、distance and speed , at the same time ,
it establishes a good foundation for enhancing using speed 、increasing traffic ability and
realizing auto driving.
[Key words]:Sensor; Speed; Auto Control; SCM