摘 要
随着现代社会的快速发展，各种各样的交通工具成为了代步工具，特别是近年来小汽车的普及，加重了现有交通资源的压力。优化交通网络可以缓解交通压力，但是投入成本较高，还要受很多环境因素的影响，对于道路交通的控制方法和控制技术的优化显得更容易实现，而交通灯是整个交通网的指挥系统。
本文研究的是以STC89C52RC单片机为控制器的智能交通灯控制系统，该系统在基础交通灯系统的基础上增加了如下功能：(1)自动实时监测车流量并将传回的数据进行处理，动态分配不同方向的通车时间，最大程度优化交通道路资源；(2)紧急情况强制转换通车；(3)根据车流量自动进入夜间模式等功能。本设计进行软硬件整体设计，并利用PROTEUS软件进行软件仿真，并进行了硬件板卡实现。
关键词：智能交通灯；STC89C52；智能控制；74HC573
ABSTRACT
With the rapid developments of modern society, all kinds of traffic tools has become the transport, especially the popularity of the car in recent years, which increased the pressure of the existing transport resources, Although optimizing the transportation networks can ease traffic pressure, the cost is higher,and which is influenced by many environment factors also.Optimizing the control methods and control technologies are more easy to implement, and the traffic light is the core command system for entire transportation network.
This paper has researched the controller of the intelligent traffic light control system based on STC89C52RC single-chip microcomputer.The system of traffic lights on based system increased automatic real-time monitoring on the basis of the number of cars and will be back to the data, the dynamic distribution of different directions of traffic time, maximum optimization of traffic resources; Emergency coercion; According to the number of cars and the time, the control system can enter the night mode automatically. This design carries on the overall design flow of software and hardware, using the PROTEUS software for simulation, and the circuit board was implemented at last.
KeyWords：Intelligent traffic lights; STC89C52; Intelligent control; 74 hc573
目 录
TOC \o "1-3" \h \z \u
HYPERLINK \l "_Toc357195704" 第一章 绪论 PAGEREF _Toc357195704 \h 1
HYPERLINK \l "_Toc357195705" 1.1 智能交通系统发展史 PAGEREF _Toc357195705 \h 1
HYPERLINK \l "_Toc357195706" 1.2 智能交通系统的发展现状 PAGEREF _Toc357195706 \h 1
HYPERLINK \l "_Toc357195707" 1.3 智能交通灯研究的意义 PAGEREF _Toc357195707 \h 2
HYPERLINK \l
