文档介绍：摘要
随着现代社会对交通运输的日趋依赖,交通灯成为了人们生活中不可或缺的一部分。传统的交通灯控制器虽然在一定程度上可以满足指挥路口交通的需要,但随着城市规模的不断扩大,原有的交通灯控制器已经表现出明显的缺点:红绿灯时间相对固定,不能伴随车流量的改变而调整红绿灯的显示时间。本设计以十字路口交通灯的控制为研究对象,以交通工程基本理论为基础,结合当前的单片机应用技术,对智能交通灯控制系统进行了分析和研究。文章论述了基于AT89C51单片机的交通灯控制器的设计,该控制器根据车流量的情况可以自适应的改变车辆的通行时间,以提高交通的利用率,通过LED数码管来显示交通灯的闪亮时间。
关键词:车流量;交通灯控制器;智能控制;LED显示
Abstract
With increasing reliance on transportation in modern society,Traffic lights have e an important part in pepole’s daily lives. To some extent, traditional traffic control machine can meet the needs of the traffic junction, however, with the continuous expansion of city scale, the traditional traffic lights control machine have showed obvious ings: a relatively fixed display time of traffic lights, which can not change as the different traffic flow at the crossing. In this thesis, according to basic traffic engineering theory, combined with current technology and application of microcotroller, which does detai analysis and research on intelligent traffic lights control machine. This article discusses traffic lights control machine based on AT89C51 microcontroller, which can chang self-adaptively the corresponding time to permit a vehicle and a care to pass through for raising the use efficiency of the transportation path according to the condition of the traffic is driven LEDfigueres a tube to show traffic lights bright time.
Key words:Traffic flow; Traffic lights; Intelligent control; LEDshow
目录
摘要 I
Abstract II
目录 III
前言 - 1 -
第一章现实交通与改善概述 - 2 -
- 2 -
- 2 -
交通的解决方法 - 3 -
第二章交通灯控制器的设计元件 - 4 -
- 4 -
AT89C51 单片机简介 - 4 -
光电开关 - 7 -
光电开关的工作原理 - 7 -
. 光电开关的分类 - 7 -
- 8 -
ULN2003概述 - 8 -
ULN20003的内部结构 - 9 -
- 9 -
电源电路设计 - 10 -
三端稳压器简介 - 10 -
电源电路图 - 11 -
第三章交通灯控制器的设计 - 12 -
控制器的设计原理及框图 - 12 -
控制器的设计方案 - 13 -
- 13 -
- 14 -
- 15 -
- 15 -