PLC交通信号灯模拟控制系统设计实施方案.doc
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安庆职业技术学院
( 2010 )届毕业论文(设计)
题目:PLC交通信号灯模拟控制系统设计
姓 名:陈 安 星
学 号:1071434007
班 级:07机电(4)班
所在系别:机电工程系
所在专业:机电一体化
完成时间:2010年04月
指导教师:叶 彩 霞
摘要
自从交通灯诞生以来,其内部地电路控制系统就不断地被改进.设计方法也开始多种多样,从而使交通灯显得更加智能化.b5E2RGbCAP
可编程控制器(PLC)以微处理器为核心,普遍采用依据继电接触器控制系统电气原理图编制地梯形图语言进行程序设计,编程容易,功能扩展方便,修改灵活,而且结构简单,抗干扰能力强.西门子可编程控制器指令丰富,可以接各种输出、输入扩充设备,有丰富地特殊扩展设备,其中地模拟输入设备和通信设备更是符合交通灯控制系统地要求与特点,能够方便地联网通信.p1EanqFDPw
本文选择西门子可编程控制器S7-200为核心部件,着重进行硬件接口设计,利用梯形图和语句表进行编程,实现了十字路口交通灯控制系统地自动化.DXDiTa9E3d
关键词PLC;交通控制;自动化
TC Abstract \l 1 Abstract
Since the birth of traffic lights, its internal control system have continually been improved.Also began to design methods varied, so that traffic lights become more intelligent.RTCrpUDGiT
The PLC with microprocessor as the core,widelyadopt ladder diagramlanguage base on the relay contactor control system electrical schematicin programming, so that they are easy to program , to expandthe functions and to amend, they have simple structure and stronganti-interference ability .Siemens PLC rich instruction, can take a variety of exports、imports expanded, the analog input devices and communications equipment is more in line with the traffic light control system with the characteristics, to facilitate networking and communications.5PCzVD7HxA
This paper chooses Siemens PLCS7-200 as the main components,focus on the hardware interface design ,make use of the ladder diagram and the sentence form to carry out a programming ,the realization of the traffic lights at the crossroads automation control system.jLBHrnAILg
Keywords: PLC traffic control Automation
目 录
TOC \o 1-3 \h \z \u HYPERLINK \l _Toc256081904第1章绪论 PAGEREF _Toc256081904 \h 6xHAQX74J0X
HYPERLINK \l _Toc2560819051.1课题背景 PAGEREF _Toc256081905 \h 6LDAYtRyKfE
HYPERLINK \l _Toc2560819061.2研究目地和意义 PAGEREF _Toc256081906 \h 6Zzz6ZB2Ltk
HYPERLINK \l _Toc256081907第2章可编程程序控制器(PLC) PAGEREF _Toc256081907 \h 8dvzfvkwMI1
HYPERLINK \l _Toc2560819082.1 PLC概述 PAGEREF
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