引言 近年来，中国经济得到迅猛发展，私家车拥有量快速增长，公路建设也快速发展，与此同时，交通事故频发，原因是多方面的，诸如路况差，车速高引起驾驶员视觉变差，气候条件差等。其中，事故中追尾碰撞居首位，所以预防交通事故主要是预防汽车追尾碰撞。鉴于此，本文讨论了如何预防汽车追尾碰撞报警系统的设计-Introduction In recent years, China' s economy has been the rapid development of private car ownership is rapidly growing, also the rapid development of highway construction, at the same time, frequent traffic accidents for many reasons, such as poor road conditions, high-speed visual deterioration caused by the driver , poor weather conditions. Among them, the rear-end collision accident on top of the list, so the prevention of traffic accidents is rear-end collision prevention. In view of this, this article discussed how to prevent rear-end collision warning system