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1·Rear-End Collision Danger.

追尾危险。

2·But today's wenzhou rear-end collision really let a person feel sorrow!

但今天的温州追尾事件真让人感到悲哀！

3·Based on this premise, a suit of Rear-end Collision Warning System is studied and taped in this paper.

本论文以此为前提，开发研究了一套高速公路追尾碰撞预防报警系统。

4·Volvo has introduced a system called City Safety that reduces the chance of low-speed crashes in which the driver fails to brake in time, usually causing a rear-end collision.

沃尔沃（Volvo）也引入了一个名叫“城市安全”的系统，它可以降低因驾驶员未能及时刹车而导致低速撞车的可能性（往往是追尾）。

5·This paper can solve the key difficulty of lane detection, car detection and distance measurement based on central perspective principle and image process in order to alarm rear-end collision.

本文利用中心透视原理和图像处理的方法可以解决车道识别，车辆识别和车间距测量的关键难点，达到高速公路汽车追尾预警的目的。

6·An new scheme for automobile's rear-end anti-collision is proposed by ultrasonic approach;

利用超声波探测技术，提出了一套基于超声波测速的汽车防追—尾告警系统方案；