毕业论文（设计）基于 AT89S51 单片机的交通灯设计 摘 要近年来随着科技的飞速进展，单片机的应用正在不断地走向深化。在实时检测和自动控制的单片机应用系统中，单片机往往是作为一个核心部件来使用，仅单片机方面知识是不够的，还应根据具体硬件结构，以及针对具体应用对象特点的软件结合，加以完善。本文首先对智能交通灯的讨论意义和智能交通灯的讨论现状进行了分析，指出了现状交通灯存在的缺点，并提出了改进方法。智能交通灯控制系统通常要实现自动控制。本文还对 AT89S51 单片机的结构特点和重要引脚功能进行了介绍，同时对智能交通灯控制系统的设计进行了详细的分析。关键词：AT89S51 单片机；智能交通灯控制系统；程序设计AbstractAlong with science and technology is updating in recent years , the application of MCU is going deeper. In the application of the automatic control and detection of real time, the MCU is used to use as a key parts. But if you want to design a system , only learn the knowledge of MCU is insufficient . You should perfect the system on the basis of the structure of the hardware and it is link to the characteristic of the application object of the software.First, in this paper, we discuss the studying significance and studying situation of the Intelligent Transportation System(ITS) ,then point out the drawback of the current situation and give the improve method. Automatic Control is the most important function of the ITS. This paper describe the character of structure and the function of pin of AT89S51 SCM.It also give detailed analysis of ITS design .Keyword:AT8951 MCU; ITS; program design 目录正文……………………………………………………….摘要…………………………………………………….ABSTRACT………………………………1.引言 在今日，红绿灯安装在各个道口上，已经成为疏导交通车辆最常见和最有效的手段。但这一技术在 19 世纪就已出现了。1858 年，在英国伦敦主要街头安装了以燃煤气为光源的红，蓝两色的机械扳手式信号灯，用以指挥马车通行...
