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毕业论文(设计)

题 目 基于单片机控制的

交通灯的设计 ＿

学生姓名

学 号

专业班级

指导教师

完成时间： 201 年 月 日

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摘 要

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。本人选择制作交通灯作为课题加以研究。分析了现代城市交通控制与管理问题的现状，结合城乡交通的实际情况阐述了交通灯控制系统的工作原理，利用单片机89S51为核心部件，外加定时器、复位电路、晶振电路、显示电路等，设计一个比较符合交通规则的模拟交通灯，包括人行道，车行道、南北东西左转、应急车道，以及基本的交通灯的功能，同时给出了一种简单实用的城市交通灯控制系统的硬件电路设计方案。

本文主要介绍了一个基于80C51单片机的交通灯控制系统，详细描述了利用89C51开发交通灯控制系统的过程，重点对硬件设计、软件编程、调试分析以及各模块系统流程进行了详细分析，对各部分的电路也一一进行了介绍。本系统由80C51单片机、键盘、交通灯演示组成，。该系统可以方便的实现交通灯控制。该系统结构简单，可靠性高，修改程序简单(方便加入或改变功能)，有较好的应用前景。

关键词：交通控制；单片机；80C51

ABSTRACT

Traffic lights, traffic to the effective control, to ease the traffic flow, increase road capacity, reduce traffic accidents have a demonstrable effect. I choose to create a traffic light as a subject to be studied. Analysis of the status of a modern urban traffic control and management issues, combined with the actual situation of urban and rural transportation on the traffic light control system works with microcontroller 89S51 as the core components, plus the timer, reset circuit, crystal oscillator circuit, display circuit, design a more in line with the traffic rules of the simulation of traffic lights, sidewalk, roadway, north and south things turn left emergency lane, and the basic function of the traffic lights, at the same time gives a simple and practical urban traffic light control system hardware circuit design.

This paper describes a 80C51 microcontroller-based traffic light control system, detailed description of the use 89C51 development process of the traffic light control system. Focus on a detailed analysis of the hardware design, software programming, analysis and debugging process of the modular system, on the part of the circuit are introduced one by one. The system is made up of 80C5l microcomputer, keyboard and traffic lights display. The system can easily achieve traffic light control The system is simple, high reliability, easy to modify the program (easy add or change func