基于车流量检测智能交通信号灯设计.docx

本科毕业论文（设计）题目：基于车流量检测的智能交通信号灯的设计姓 名：_ __学 号：____ _专 业： 电子信息工程_ __院 系： 电子通信工程学院 _指导老师：_ ____ _职称学历： 讲师 ／硕士_ __完成时间： 2016年5月 教务处制基于车流量检测的智能交通信号灯的设计摘要随着社会飞速的发展，交通运输工具的迅速增加，交通控制系统在我们生活中起到了越来越重要的角色。现如今，为了提高交通秩序的安全性，除了国家颁布的一系列的交通法律法规，还必须通过一定的科技手段加以实现。本次基于车流量检测的智能交通控制系统设计是由AT89S51单片机、交通显示、LED倒计时、车流量检测及调整、紧急处理、时间模式手动设置等模块组成。系统除了能实现基本的交通信号灯的功能外，还可以实现通行时间手动设置、倒计时显示、急车强行通过、车流量检测及调整等相关功能。关键词：单片机; 智能交通控制; 倒计时显示Design of Traffic Lights based on vehicle flow detectionAbstractWith the development of modern social logistics and the increase of transportation, the public management system-traffic control system plays a more and more important role in our life. At present, in order to ensure and improve the safety of traffic order, not only the country need to issue a series of traffic laws and regulations, but also need to use certain scientific and technological means to achieve it.The intelligent traffic control system based on single chip is composed of AT89S51 singlechip, traffic display, LED countdown, vehicle flow detection and adjustment, emergency treatment, time mode and other modules. The system not only can execute the basic function of traffic lights, but also can achieve some related functions such as manually set of the transit time, countdown display, the car forced through and traffic detection and adjustment and so on. Key Word：Singlechip; Intelligent Traffic Control; Countdown Display目 录1 绪 论11.1 交通信号灯的选题背景11.2 交通信号灯的发展及研究意义12系统硬件设计32.1 电路模块总体设计及实现功能32.2 AT89S51及其最小系统···················································52.2.1 时钟电路····································································52.2.2 复位电路··································································62.2.3EA脚的功能及接法·····················································72.3 车流量检测电路···························································72.4 数码管显示电路····························································82.5 按键控制电路·········································