基于PLC的交通灯控制系统设计 (2).docx

PAGEII

南京信息职业技术学院

毕业设计论文

作者朱能军学号21614D34

系部机电学院

专业机电一体化技术

题目基于PLC的交通灯控制系统设计

指导教师孙妍

评阅教师曹桂玲

完成时间：2019年4月26日

PAGEIII

PAGEI

毕业设计(论文)中文摘要

基于PLC的交通灯控制系统设计

摘要：本文从交通信号灯背景与意义出发，详细的阐述了交通信号灯的基础知识、以及起源与作用，通过对十字路口交通信号灯实际情况分析，选定采用基于PLC控制技术设计的十字路口交通信号灯定时控制,并使用CAD软件绘制出PLC主体内部结构图.通过分析道路交通信号系统、PLC控制系统、控制要求及对象，确定了系统所应用的基本硬件.设计出十字路口交通信号灯的基本运行方案，并选择合适的PLC实现对十字路口交通信号灯的程序控制，最终完成基于PLC的交通控制系统设计。

关键字：交通信号灯、PLC控制技术、交通信号灯定时控制

毕业设计(论文)外文摘要

Design?of?traffic?light?control?system?based?on?PLC

Abstract:

This?article?embarks?from?the?traffic?lights,?background?and?significance,?detailed?elaborated?the?basic?knowledge?of?traffic

lights,?and?the?function?of?the?origin?and,?through?the?analysis?of?the?actual?situation?of?traffic?lights?at?an?intersection,?selected?based?on?PLC?control?technology?design?of?intersection?traffic?signal?timing?control,?and?use?CAD?software?to

map?the?PLC?main?internal?structure.?Through?the?analysis?of?road?traffic?signal?system,?PLC?control?system,?control?requirements?and?object,?determine?the?basic?hardware?of?system?application.?Design?the?basic?operation?scheme?of?the?intersection?traffic?lights,?And?select?the?appropriate?PLC?to?achieve?the

program?control?of?the?intersection?traffic?lights,?and?finally?complete?the?design?of?the?traffic?control?system?based?on?PLC.

Key?words:Traffic?signal、?PLC?control?technology、?traffic?signal?timing?control

目录

1.绪论··························································1

1.1背景与意义···················································1

1.2交通信号灯基础知识···········································2

1.3交通信号灯起源与作用·········································3

1.4交通信号灯控制方式···········································3

1.5PLC简介······················································4