毕业设计（论文）-基于80C51的单片机交通灯控制系统的设计精选.doc

2015届毕业设计说明书 基于80C51的单片机交通灯控制系统的设计 学 院： 电气与信息工程学院 学生姓名： 指导教师： 职称 讲师 专 业： 电气工程及其自动化 班 级： 电气本 1103 完成时间： 2015年6月 摘 要 最近几十年来，我们国家基础建设的发展日益加快,城市化的进程也越来越迅速,便利和通畅的道路交通渐渐成为了我国社会主义建设的重要环节。由于车辆的快速增长,特别是我国交通建设主要道路口的管理与控制的好坏,对交通的安全有着深远而重要的影响。 当前，十字路口都采用了信号灯来控制车辆和人的通行，不仅便于维护管理，而且。 关键词： AT89S52单片机；交通灯；违规检测 Abstract In recent decades, growth and maturity of Chinas infrastructure, with the rapid development of urbanization, convenient and smooth road traffic is becoming an important part of our socialist construction. Because the vehicles explosive growth, especially the key management and control of traffic construction in our country, it has a profound and important influence the traffic safety. Now, use signal control lamp and the emergence of the underground safety, maintenance and management of traffic, not only convenient and automatic. Digital signal circuit, not only low power consumption, but also a variety of, convenient peoples life. People, cars, roads, the three aspects of the unity of our more thinking and solving, three coordinate all aspects of development, and promote social and economic value and the development of human beings. Because the city traffic problems, people more and more, traffic lights have mediation of vehicle traffic flow control efficiency, improve and enhance the efficiency of the vehicle, can reduce and prevent a series of traffic problems. Crossroads vehicle endless back and forth, many pedestrians, good order and arrangement is the first element to ensure safety of roads and sidewalks. To do this for the sake of what? For this traffic light system in the urban road traffic. In this design, I chose the AT89C52 single chip microcomputer as control core, and the auxiliary power circuit, reset circuit, key circuit, the human body sensor, the digital tube display, LED lights, according to the buzzer alarm, crystal oscilla