基于PLC的智能交通系统的设计

基于PLC的智能交通系统的设计(论文12000字)
摘要:本文主要以现阶段的十字路口交通灯为依据设计出一种以PLC为控制单元根据车流量的差异来改变交通灯时间的一套十字路口交通灯系统。PLC可控编程器具有结构紧凑、可靠性高、环境适应性强、使用方便灵活的特性。同时，PLC内部的定时器资源丰富，可以方便快捷精确的对各类交通信号灯进行精确有效的控制，现阶段其在交通灯系统中得到普遍的推广使用。
关键词：可控制编程器；定时器；特性；

Design intelligenttransportation system based on PLC
Abstract:In this paper,this system is a PLC of control the unit based on the difference traffic traffic light.It can changetraffic light time on the basis of traffic volume.This system is based on the traffic lights .PLC control programmerhas the characteristics of compact structure, high reliability and environmental adaptability, convenient and flexible .At the same time, the PLC internal timer is rich in resources.It can work in all kinds of traffic lights for precise control.At this stage, it is widely used in the traffic light system.
Key words: control programming; timer; characteristics;
 

目录
1引言....................................................3
2交通行业现状............................................3
2.1国内的交通系统现状...................................................3
2.2国外的交通系统现状...................................................4
2.3智能交通灯的发展现状.................................................5
3 实施目标及实施方案......................................5
  3.1实施目标.............................................................5
  3.2实施方案.............................................................6
4 PLC及组态王系统.......................................12
4.1 PLC的软件系统.......................................................12
  4.2 PLC的特点...........................................................13
  4.4 PLC的工作原理.......................................................13
  4.3 组态王概述..........................................................14
      4.3.1 使用组态王的步骤..............................................14
    4.3.2使用组态王的注意事项..........................................14
5 控制系统的硬件选择.....................................14
    5.1PLC型号的选定.......................................................15
    5.2 车流量检测器选择....................................................15
    5.3 PLC及模块外部接线图.................................................15
    5.4 PLC系统的I/O表分配图...............................................16
    5.4 组态王界面设计.......................................................16
6 结果及分析.............................................18
7 结论...................................................27
参考文献.................................................27
致谢.....................................................29