一种基于AT89S52的车辆防追尾预警系统设计-《集美大学学报（自然科学版）》

文章信息/Info

Title:: Design of Vehicle Rear end Collision Avoidance Warning System Based on AT89S52

作者:: 吴经贤1; 2; 李颖1; 3; 胡妮娜1; 郭文静1; 杨光松1; 2; （1.集美大学信息工程学院，福建厦门361021;2.集美大学航海学院，福建厦门361021;3.集美大学诚毅学院，福建厦门 361021）

Author(s):: WU Jingxian1; 2; LI Ying1; 3; HU Nina1; GUO Wenjing1; YANG Guangsong1; 2; (1.Information Engineering College,Jimei University,Xiamen 361021,China;2.Navigation College,Jimei University,Xiamen 361021,China;3.Chengyi University College,Jimei University,Xiamen 361021,China)

Keywords:: rear end collision; safe braking distance; warning system; AT89S52

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。

Abstract:: 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.