摘要
在汽车防撞模型的基础上分析了汽车的制动过程,并设计了一种基于AT89S52的车辆防追尾预警系统。当检测到前方车辆在行驶中对本车构成危险时,声光预警模块开始工作,及时提示驾驶员采取制动等相应措施避免车辆追尾。实验表明,该系统可以根据实测距离和自车车速,准确地判断出安全制动距离并给出预警界限。
In order to avoid the occurrence of rear-end collision,the paper analyzes vehicle's braking process based on the automotive anti-collision model,and designs a vehicle rear-end anti-collision warning system based on AT89S52. Then the sound and light warning device begin to work as soon as the frontal vehicle detected poses a risk to the following vehicle in the driving process,so the driver can be prompted timely to take corresponding measure such as braking to prevent rear-end collision. The experiment shows that the system can accurately judge the safe braking distance and give the alarming limit according to the measured distance and the following vehicle's speed.
引文
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