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PLC控制的人行道红绿灯的设计
毕业论文（设计）
题目：PLC控制的人行道红绿灯的设计
系 部 电气工程系
专 业 名 称 检测技术及应用
班 级 检测1316
学 号 1030303131623
姓 名 张静
指 导 教 师 张庆玲
2013年 月 日
目 录
摘 要·····································································Ⅰ
1 斑马线的介绍·························································2
2 PLC的简介····························································3
2.1 PLC概述·························································3
2.2 PLC的结构及产品介绍·············································3
2.3 PLC基本指令····················································5
2.4 PLC工作原理····················································7
2.5 PLC 汇编语言·················································· 7
2.6 PLC的应用······················································8
2.7 PLC交通灯毕业设计编程器件······································9
3 硬件设计······························································9
3.1 控制要求························································9
3.2 PLC控制人行道红绿灯的梯形图···································10
3.3 PLC I/O端口分布及外部接线图··································10
3.4 时序图·······················································11
4 软件设计·····························································12
4.1 交通灯控制流程图············································ 12
4.2源程序设计图················································· 13
4.3 交通灯指令表················································15
结 束 语·································································16
参考文献··································································17
摘 要
随着社会经济的发展,城市交通问题越来越引起人们的关注.人、车、路三者关系的和谐,已成为交通治理部分须要解决的主要问题之一.城市交通节制系统是用于城市交通数据监测、交通讯号灯把持与交通劝导的盘算机综合治理体系,它是现代城市交通监控指挥体系中最主要的组成部分. 随着城市灵活车量的不断增添,很多大城市如北京、上海、南京等呈现了交通超负荷运行的情形,因此,自80年代后期,这些城市纷纭修建城市
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