基于单片机有急救车通过的交通灯设计.doc

本科毕业设计（论文） 题目名称：单片机模式下急救车 与交通灯设计 学生姓名: 高 丽 学 院: 理 学 院 专业名称:电子信息科学与技术 指导教师: 张 建 国 二〇〇八 年 六 月 日单片机模式下急救车与交通灯设计 摘要 随着社会经济的发展，城市交通问题越来越引起人们的关注。人、车、路三者关系的协调，已成为交通管理部门需要解决的重要问题之一。提出了一种单片机 The design of emergency vehicles and traffic lights under Single-chip processor mode Abstract Along with the social economy development, the municipal transportation question is more and more arousing peoples interest. The human, the vehicle and the road, the three relations of coordination, have become one of important questions which the traffic control department needs to solve. Encounters the emergency case in particular, for instance when emergency vehicles pass, it is imperative to maintain the path unimpeded, guarantee the emergency car to pass smoothly. In order to guarantee the traffic safety, prevented the traffic jam, make the municipal transportation to be systematic, the traffic light control obtained the widespread application in the majority cities. This topic proposed the design of emergency vehicles and traffic lights under Single-chip processor mode. Supposed that the intersection for East, West, South and North trend. The original state 0 is East and West red light, North and South red light, then the state 1 North and South green light is open to traffic, East and West red light. For a period of time to the state 2, North and South green light flashes several times then turns to yellow light for a few seconds delay, East and West is still red light. Again transfers state 3 East and West green light is open to traffic, North and South red light. For a period of time to the state 4, East and West green light flashes several times then turns to yellow light for a few seconds delay, North and South is still red light. Finally circulates to the state 1. Designed the traffic light management system management system requests satisfies the emergency car first through. When the emergency vehicle arrives, two directions of traffic light