基于MCS-51系列单片机的交通灯控制系统的设计与实现.docVIP

本科毕业设计（论文） 论文题目：基于MCS-51系列单片机的交通灯控制 系统的设计与实现 学生姓名： 学 号： 专 业： 计算机科学与技术 班 级： 指导教师： 完成日期： 2012年5月20日 基于MCS-51系列单片机的交通灯控制系统的设计与实现 内 容 摘 要 Based on MCS-51 series microcontroller traffic light control system design and implementation Abstract With the rapid development of science and technology in recent years, the application of the microcontroller is constantly deepening, while driven by the traditional control to detect the rapid update.In real-time detection and automatic control of microcomputer application system, the microcontroller is often a core component to use only SCM knowledge is not enough, you should also be improved according to the structure of the specific hardware and software combination for the application object characteristics. Crossroads shuttle vehicles, pedestrians bustling Dealers lane, methodical. Rely on to achieve this orderly order? Rely on automatic command system of traffic lights. Traffic signal control. The system uses the MSC-51 series microcontroller AT89S51-centric devices to design a traffic light controller. This article describes the traffic control system in addition to general traffic light display also has a time display function, countdown function to facilitate the travel of people, this system practical, simple operation, and scalability. First use of KeilC51 design debugging of programs written in, and use Proteus7 software simulation of the traffic light controller to achieve the required functions of the system is running. The design method to study single-chip design and development representative. Keywords: Single-chip microcomputer Traffic lights Controller Timing 目 录 序言 1 一、绪 论 2 （一）开发交通灯控制系统的目的和意义 2 （二）选题背景 2 （三）国内外交通控制系统的研究现状 3 1.交通控制存在的问题 3 2.交通控制系统的发展方向 4 3.PLC交通灯系统与单片机交通灯系统的比较 4 二、交通灯系统方案论证 6 （一）设计任务 6 （二）方案选择 6 三、交通灯系统硬件设计 9 （一）系统构成 9 （二）芯片选择 10 1.AT89S51芯片 10 2.LED数码管显示 12 3.交通灯控制线路图 13 四、交通灯系统软件设计 14 （一）显