基于单片机的智能交通灯控制系统系统设计精要.docx

基于单片机的智能交通灯控制系统系统设计摘 要道路交通灯也就是我们常说的红绿灯，这是很常见的一种实时控制系统。我们日常出行的时候在路口都能看到。交通灯系统包括了一般的测控系统常用到的功能，它不但有利于道路的通畅，还可以减少交通事故发生。它主要由按键输入、时钟控制、显示和串口通信等组成。这里，我先对现在的交通系统的基础上进行分析，然后运用检测传感和实时调整的智能化技术，把传感器检测、车辆实时监测与单片机的作用相结合，设计出了基于单片机的智能交通灯控制系统的方案。 基于8051单片机的智能交通灯控制系统由8051单片机、交通灯显示、LED倒计时、车流量检测及调整、违规检测、紧迫处理、时间模式手动控制等模块构成。使用单片机控制的交通灯包括了车辆通行和等待时间的倒计时显示、正常的工作模式、限行模式、禁行模式等基础功能。该系统除交通灯具有的基本功能外，还具有通行时间手动设置、可倒计时显示、紧急车辆强行通过、车流量检测及调整、交通异常情况的判断和处理等相关功能。本文主要做了如下工作：先确定总的设计然后进行硬件电路和显示电路的设计。关键词：交通控制，/*传感检测*/，矩阵键盘，AT89S51，倒计时显示。AbstractTraffic control system is a modern society with logistics, travel etc of traffic development a unique set of public management system. To ensure the effective safety traffic, except for a series of traffic rules, still must through certain technological means to achieve. Based on analysis of traffic control, based on real-time detection sensor, adjust the implementation technology of intelligent control, real-time monitoring, sensor adjust vehicles time algorithm and single-chip microcomputer control function is proposed, whichcombines the traffic control system based on single chip design scheme.The 8051 microcontroller control system consists of the traffic lights display, 8051 monolithic integrated circuits, and LED the countdown, traffic violation detection, emergency adjustment, manual mode, time as modules. In addition to the basic traffic function outside, still have time to manually set, can pass the countdown, car that forced through traffic, inspection and adjustment, transportation and processing abnormal discriminant functions. Theory shows that the system can simple, economic and effective relieves traffic, improve the crossroads capacity.This design mainly do the following aspects: one is the work of the traffic control system design, including the crossroads, specific design and system should be restricted with each function, two is that the sensor, the hardware circuit design of the circuit and the basic function and requirement. Key Words: tr