摘要随着时间社会的迁移，当今城市交通问题已经成为世界上一大难题。如何协调 人、车辆、道路之间的关系，已经成为了我国交通管理部门亟待解决的重要问题之 一。交通控制系统是用于各个地区的交通数据监测、交通信号灯控制以及交通疏导 的计算机综合管理系统，它是现代社会必不可少的一部分，有了交通控制系统，控 制以及改善了全世界的交通状况，交通信号灯的出现，使交通得以有效管制，对于 疏导交通流量，提高道路通行能力，减少交通事故有明显效果。本文选择制作基于 单片机的交通灯设计作为课题并加以研究。对现代交通控制与管理问题的现状进行 了分析，结合城乡交通的交通灯控制系统的实际情况以单片机 AT89C52 为核心部件， 加上定时器，复位电路、晶振电路、显示电路。详细分析了系统的硬件设计、软件 编程、分析和调试过程。在编写完程序后使用 PROTEUS 开发软件对交通信号控制 系统进行仿真，仿真结果可以看出系统工作状态良好。83850

毕业论文关键词： 单片机；交通信号控制系统；AT89C52

Abstract With the development of the society actively,problem of the urban traffic has become a big problem all the world。The way of how to make the relationship be in harmony with each other 。Besides, it has become one important issue to be solved in the traffic management department。Traffic control system is used in the various aspects of the traffic including data monitoring, traffic signal lamp control and traffic grooming with the help of computer integrated managementsystem,witchisessentialto modern society。The traffic

control system control traffic and improve the quality of traffic around the world，raffic

lights, traffic to the effective control, to ease the traffic flow, increase road capacity, reduce traffic accidents have a demonstrable effect。From all of this above,I choose to make traffic light based on microcomputer as a the graduation designing subject to be studied。 The study requires the background of analysis of the issues modern traffic controlling and management arise。 My designing is based on the traffic light control system ,which works with microcomputer called AT89C52 as the core components, and it alsoincludesthe timer module, reset circuit module,crystal oscillator circuit, and display circuit module。Focus on a detailed analysis of the hardware design, software programming, analysis and debugging process of the modular system。 After I have finished writing the

program，I used Proteus，the traffic signal control system is simulated, and the simulation

results can be seen that the system is in good working condition。

Keywords: microcomputer；the traffic signal control system；AT89C52

目 录

第一章 绪论 3

1。1 研究背景 3

1。2 交通信号灯的研究现状与发展 3

1。3 设计目的 4

1。4 研究的方法及措施 5

1。4。1 研究方法 6

1。4。2 研究措施 6

1。5 本章总结 6

第二章 总体设计 7

2。1 交通灯的基本设计构思 7

2。2 交通灯的状态分析 8

2。3 交通信号灯报警设计 9

2。4 本章总结