单片机智能控制交通系统.doc

单片机智能控制交通系统

摘要：本设计的目的在于设计出一个具有实用价值、性价比较高的智能交通灯控制系统。该系统性能较好，且稳定性高，可实现十字路口城乡交通自动控制和紧急情况下能够手动切换信号灯让特殊车辆优先通行。该系统中结合了数学中“模糊控制”累积计数的原理, 以美国ATMEL公司AT89S51单片机为控制芯片，提出了基于单片机的交通控制系统设计方案。
AT89S51单片机的交通灯控制系统由AT89S51单片机、交通灯显示、LED倒计时、车流量检测及调整、违规检测、紧急处理、时间模式手动设置等模块组成。系统除基本交通灯功能外，还具有通行时间手动设置、可倒计时显示、急车强行通过、车流量检测及调整、交通异常状况判别及处理等相关功能。

关键词：交通控制，传感检测，AT89S51

System based on single chip microcomputer intelligent traffic control
 
Abstract: The purpose of the design is to design which is practical and high performance. Better performance of the system and high stability can be achieved crossroads of urban and rural traffic control and emergency situations can manually switch the lights for special vehicles priority. The system combines the mathematics of "fuzzy control" principle of cumulative counts with the United States ATMEL AT89S51 microcontroller control chip, putting forward the traffic control system design scheme based on single chip
The 8051 single-chip microcomputer control system consists of traffic light 8051 monolithic integrated circuits, light display, LED the countdown, inspection and adjustment, traffic violation detection, emergency handling, time mode manual settings and other modules. System besides basic traffic lights function outside, still has passage of time manual settings, but countdown show, the anxious car traffic to pass, and the adjustment, traffic detection and treatment abnormal situation discriminate related functions.
Keywords: traffic control, sensor, AT89S51
 
目    录
摘要 II
1  绪   论 1
1.1交通控制存在的问题 1
1.2单片机交通控制系统主要研究的内容 1
2 单片机交通控制系统总体设计 2
2.1单片机交通控制系统的通行方案设计 2
2.2单片机交通控制系统的功能要求 2
3 系统硬件电路的设计 3
3.1系统硬件总电路构成及原理 3
3.1.1系统硬件电路构成 4
3.1.2系统工作原理 4
3.2硬件介绍及连接 2
3.2.1 AT89S51芯片最小系统 2
3.2.2车流量检测电路及模拟 3
3.2.3违规检测电路及模拟 5
3.2.4其它器件 5
4 系统软件程序的设计 9
结束语 13
致  谢 14
参考文献 14