基于PLC智能控制系統(tǒng)的十字路口交通燈的研究設(shè)計(jì)

摘 要
隨著社會(huì)經(jīng)濟(jì)的發(fā)展，城市交通問(wèn)題越來(lái)越引起人們的關(guān)注。人、車(chē)、路三者關(guān)系的協(xié)調(diào)，已成為交通管理部門(mén)需要解決的重要問(wèn)題之一。城市交通控制系統(tǒng)是用于城市交通數(shù)據(jù)監(jiān)測(cè)、交通信號(hào)燈控制與交通疏導(dǎo)的計(jì)算機(jī)綜合管理系統(tǒng)，它是現(xiàn)代城市交通監(jiān)控指揮系統(tǒng)中最重要的組成部分。
針對(duì)近年來(lái)城市交通的擁擠現(xiàn)象,特別是駕駛員違章嚴(yán)重、交通事故頻發(fā)、車(chē)輛尾氣污染等問(wèn)題,介紹丁集計(jì)算機(jī)、信息、電子及通訊等眾多高新技術(shù)手段于一體的智能交通指揮中心控制系統(tǒng).該系統(tǒng)的安裝及使用,大大緩解了城市道路堵塞現(xiàn)象、提高了道路的通行能力.減少了駕駛員違章的次數(shù),抑制了交通事故的發(fā)生,同時(shí)對(duì)減輕車(chē)輛尾氣排放,從而降低環(huán)境污染都起到了不可低估的作用.
分析了現(xiàn)代城市交通控制與管理問(wèn)題的現(xiàn)狀，結(jié)合城鄉(xiāng)交通的實(shí)際情況闡述了交通燈控制系統(tǒng)的工作原理，給出了一種簡(jiǎn)單實(shí)用的城市交通燈控制系統(tǒng)的硬件電路設(shè)計(jì)方案。


關(guān)鍵詞　plc控制系統(tǒng) 交通燈 自動(dòng)化


PLC'Sthe controlling oftraffic signal light
Abstract

With the development of social economy, the urban transportation problem more and cause the attention of people. People, vehicles, and the coordination of the relationship, the traffic administrative department has become one of the important problems need to be solved. Urban traffic control system is designed for the urban traffic data monitoring, traffic light control and transportation of the dredge computer integrated management system, it is the modern urban traffic control command system, the most important part.


Aim at in recent years hustle of city transportation phenomenon, especially the pilot be illegal severity, traffic accident Pin hair, vehicle tail spirit pollution etc. problem, introduction the D gather numerous Gao Xin technique meanses, such as calculator, information, electronics and communication...etc. in the commanding center of the intelligence transportation of the integral whole control system.Should system of install and usage, consumedly alleviated city road to stop phenomenon, exaltation go through of road ability.Decrease the illegal number of times of pilot, repressed traffic accident of occurrence, in the meantime to ease vehicle tail spirit emissions, lowered pollution of the environment to all have thus can't under-estimation of function.
Analysis the present condition of modern control and management problem of the city transportation, combine city country transportation of actual the circumstance elaborated a transportation light control system of work principle, give a kind of simple practical city transportation light control system of hardware electric circuit design project.


Keywords　PLC control machine　traffic lights 　automation






目 錄

1 引言 1
2 PLC的概述..............................................4
2.1 PLC的產(chǎn)生及發(fā)展..........................................4
2.2 PLC的結(jié)構(gòu).............................................5
2.3 PLC的定義
2.4 plc的工作原理..............................................5
2.5 plc的應(yīng)用
2.6 plc的發(fā)展趨勢(shì)
3 交通信號(hào)燈控制的實(shí)現(xiàn)..................................7
3.1 控制要求...............................................7
3.2 交通工作時(shí)序圖
3.3 I/O分配表
3.4 梯形圖
3.5 語(yǔ)句表
4、PLC智能控制方法
結(jié)束語(yǔ)...................................................17
參考文獻(xiàn)
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