没有合适的资源?快使用搜索试试~ 我知道了~
基于PLC的交通信号灯智能控制系统设计.doc
4 下载量 149 浏览量
2023-07-09
14:04:25
上传
评论
收藏 718KB DOC 举报
温馨提示
试读
49页
基于PLC的交通信号灯智能控制系统设计.doc
资源推荐
资源详情
资源评论
I
基于 PLC 的交通信号灯智能控制系统设计
摘 要
随着经济的发展,车辆的数目不断增加,道路堵车现象日益严重,智能交通灯
就应运而生了。目前世界上的智能交通系统存在的问题是:系统结构庞大、管理困
难、维护投入大等。为了改善现有的交通状况,迫切需要设计智能的交通灯控制系
统。
智能交通灯是一项综合运用网络通讯计算机技术、感应技术来管理交通灯具的
自动控制系统。城市交通控制系统是用于城市交通数据监测、交通信号灯控制与交
通疏导的计算机综合管理系统,它是现代城市交通监控指挥系统中最重要的组成部
分。总之,如何采用合适的控制方法,最大限度利用好耗费巨资修建的城市高速道
路,缓解主干通与匝道、城区同周边地区的交通拥堵状况,越来越成为交通运输管
理和城市规划部门亟待解决的主要问题。
可编程控制器以微处理器为核心,普遍采用梯形图进行程序设计,编程容易,
修改灵活,且结构简单,抗干扰能力强。本设计采用德国西门子的 S7-200 系列的
CPU226 做 主 机 , 配 以 扩 展 模 块 EM222 。 设 计 中 采 用 了 S7-200 编 程 软 件
SETP7-Micro/WIN3.2 进行编程,用梯形图设计程序,并配有输入输出 I/O 接线图。
本论文就城乡交通灯模拟控制系统的电路原理、设计计算等问题来进行具体分析讨
论。将智能控制方案和正常时序控制进行对比,它具有小型化、智能化、维修投入
小、易于安装等特点。与其他的智能交通系统相比该系统更适应经济和社会的发展,
符合目前科技发展的现状。
关键词:智能化;交通灯;PLC
II
Intelligent Traffic Light Control System Design Based
on PLC
Abstract
With economic development and increasing of the number of vehicles, road
congestion is becoming increasingly serious, so the intelligent traffic lights is emerged. At
present, the world's Intelligent Transportation System's problem is: huge structure,
difficulty managed and the maintenance is largely expensive. In order to improve the
existing traffic conditions, it is urgent to design a small scale smart traffic lights system.
Intelligent traffic lights is a comprehensive use of computer network communication
technology and sensor technology to manage the automatic control system of traffic lights.
Urban traffic control system is used for urban traffic data monitoring, traffic signal control
and traffic management computer system, it is the most important component of modern
urban traffic control system. In short, the main problem that how to use the appropriate
control method to make full use of the high-speed roads, trunk road, that are costly built,
and the ramp to alleviate urban with the neighboring state of traffic congestion have
become more and more urgent to the traffic management and urban planning departments.
Programmable controller, whose core is a microprocessor, is commonly used to
design program with ladder appearance diagram(LAD), it is also flexible and easy to
modify, moreover, it has simple structure and strong anti-interference ability. This report
uses the CPU226 of Germany's Siemens' S7-200 series as the host computer, and together
with the expansion module EM222. The layout is designed via the S7-200 programming
software SETP7-Micro/WIN3.2, and programmed by ladder appearance diagram, we also
III
present the input and output I/O wiring diagram. This article on the urban traffic light
control system analog circuit and other issues to discuss specific analysis. Compared the
intelligent control system with the normal timing control system, it has small size ,
intelligence, maintenance into small, easy to install and so on. Compared with other
intelligent transportation system, it adapts to economic and social development, in line
with the current status of scientific and technological development.
Keywords:Intelligent; Traffic lights; PLC
IV
目 录
摘 要 ............................................................................................................................I
Abstract..........................................................................................................................II
第 1 章 绪论..................................................................................................................1
1.1 交通灯发展现状..............................................................................................2
1.2 交通灯监控系统的设计意义..........................................................................4
1.3 本文的主要工作..............................................................................................4
第 2 章 交通灯系统控制方案......................................................................................5
2.1 三种控制方式比较..........................................................................................5
2.1.1 单片机系统控制...................................................................................5
2.1.2 继电器接触控制...................................................................................5
2.1.3 可编程序控制器控制...........................................................................6
2.2 控制方案总体确定..........................................................................................6
2.3 系统方案设计..................................................................................................9
2.3.1 正常控制过程.......................................................................................9
2.3.2 智能控制方案.....................................................................................11
第 3 章 硬件电路简介................................................................................................13
3.1 PLC 的基本组成和各部分作用 ...................................................................13
3.1.1 PLC 基本组成 ....................................................................................13
3.1.2 PLC 各部分作用 ................................................................................13
3.2 S7-200 系列 PLC 简介..................................................................................17
3.3 车道信号灯....................................................................................................19
3.3.1 功能.....................................................................................................20
V
3.3.2 技术指标.............................................................................................20
3.3.3 箭头灯.................................................................................................20
第 4 章 软件介绍........................................................................................................22
4.1 STEP7-Micro/WIN 编程软件介绍 ...............................................................22
4.2 软件的安装....................................................................................................24
4.3 编程软件的启动............................................................................................26
4.4 程序的保存....................................................................................................28
4.5 程序的下载及上传........................................................................................28
第 5 章 程序设计........................................................................................................30
5.1 I/O 接线图 .....................................................................................................30
5.2 梯形图程序....................................................................................................32
结 论............................................................................................................................41
致 谢............................................................................................................................43
参考文献......................................................................................................................44
剩余48页未读,继续阅读
资源评论
matlab大师
- 粉丝: 2442
- 资源: 9万+
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功