交通信号灯的智能控制系统研究_本科.doc

摘 要 随着社会的发展，更多的机动车进入人们的生活中，交通安全对人们的重要性也更加深入人心。传统的交通灯控制系统能在一定程度上满足指挥路口交通的需要，但随着城市规模的不断扩大，原有的交通灯控制系统已经表现出明显的缺点，红绿灯时间相对固定，长期按照固定的时间变化，不能根据现场的交通情况改变而调整红绿灯的显示时间。 设计以中、小城市区域交通控制为研究对象，结合当前的单片机应用技术，对智能交通灯控制系统进行了分析和研究。文章论述了基于AT89C51单片机的交通灯控制系统，STC12C5A60S2作为单片机系统芯片，设计一款交通信号灯的智能控制系统，该系统能根据路口车流量变化而改变交通灯闪亮时间，达到智能控制交通的目的。 论文对设计的研究的背景进行了研究，并且对系统的原理和对各模块进行了详细的分析。经测试，该系统具有实用性强、操作简单、扩展性好等特点，能够达到根据现场交通情况，对红绿灯的时间进行延长和缩短，能更好的对交通情况进行人性化的处理。 关键词：交通灯；智能控制；交通安全 ABSTRACT With the development of society, more and more motor vehicle into peoples life, the importance of traffic safety of the people is more important. Traditional traffic light control system can meet the need of directing traffic in a certain extent, but with the continuous expansion of city size, traffic lights, the original control system has shown obvious shortcomings: red and green light time is relatively fixed, long-term fixed in accordance with the change of time, display time can not adjust the traffic lights according to the change of traffic scene then. In this paper, a small city in the regional traffic control as the research object, combined with the current SCM application technology, analyses and studies the intelligent traffic light control system. This paper discusses the traffic light control system based on AT89C51 microcontroller, STC12C5A60S2 as a single chip system chip, intelligent control system design of a traffic signal lamp, the system can change the traffic lights shining time according to the intersection traffic flow changes, to achieve the purpose of traffic intelligent control. Thesis on the subject of the background of the study, and the principle of the system and carry out a detailed analysis of each module. The system has been tested and practical, simple operation, and good scalability can be achieved based on live traffic conditions, extend and shorten the time of the traffic lights, better traffic conditions humane treatment. Keywords: Traffic lights; Intelligent control; Traffic safe 目