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《基于plc的交通信號(hào)燈控制系統(tǒng)設(shè)計(jì) 畢業(yè)設(shè)計(jì)》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、基于PLC的交通信號(hào)燈控制系統(tǒng)設(shè)計(jì)摘要古老的交通燈控制系統(tǒng)大多是由數(shù)字電路來(lái)實(shí)現(xiàn)的,隨著社會(huì)經(jīng)濟(jì)的發(fā)展,數(shù)字電路交通燈越來(lái)越不能滿足日益增長(zhǎng)的交通壓力,因此必須尋求一種新的方法來(lái)取代這種復(fù)雜而工作不穩(wěn)定的控制系統(tǒng)?,F(xiàn)今PLC技術(shù)飛快發(fā)展,應(yīng)用越來(lái)越廣,在工業(yè)自動(dòng)化中的地位極為重要,廣泛的應(yīng)用于各個(gè)行業(yè)。隨著科技的發(fā)展,可編程控制器的功能日益完善,加上小型化、價(jià)格低、可靠性高,在現(xiàn)代工業(yè)中的作用更加突出。本論文就是運(yùn)用PLC原理來(lái)實(shí)現(xiàn)對(duì)十字路口的交通燈的控制,介紹了基于可編程序控制器在交通系統(tǒng)的運(yùn)用,系統(tǒng)介紹了可編程序控制器的基本原理。我們
2、所設(shè)計(jì)出來(lái)的交通燈必須美觀、大方、經(jīng)濟(jì)適用、有多種變化,為了達(dá)到要求,并考慮到節(jié)省電子元件的成本,以達(dá)到最大經(jīng)濟(jì)效益,運(yùn)用歐姆龍系列的PLC來(lái)控制紅綠燈的變化,經(jīng)過(guò)對(duì)現(xiàn)今交通燈控制系統(tǒng)進(jìn)行實(shí)地考察,選擇一種最優(yōu)方案,用以在一定程度上緩解目前交通壓力。關(guān)鍵詞:交通燈;PLC;自動(dòng)控制BasedonPLCtrafficlightcontrolsystemdesign27ABSTRACTThemostancienttrafficallightcontrolunitwasdesignedbydigitalelectriccircuit.Witht
3、hedevelopmentofscienceandtechnology,thetrafficlightwhichdesignedbyelectriccircuitcannotcontaintheincreseingpressureofthetrafficaldaybyday,sowemustfindanewmethodtoreplacethecontrolunitwhichiscomplexandworkedinsteady.Nowaday,thetechnicalofprogramballogiccontrolleradvancedra
4、iply,andusemoreandmorewide.PLC(ProgrammableController)isoneofthemostimportantcomponentsoftheindustryautomation.PLCprovideautomationsolutionacrossabroadrangeofmanyindustries.Withthedevelopmentofscienceandtechnology,thefunctionofPLCismoreandmoreperfect,anditsgetsmaller,smar
5、ter,moreinteroperable,morereliable.thisthesiswasdesignedbyPLCtocontrolthetrafficallight.wedesignatrafficallightBasedonapplicationofPLCinthetrafficsystem,thispapersystematicallydescribesthefoundationalprincipium,therequestofthedesignmustbebeautiful,generous,theeconomyapply
6、,hasmanyvarieties.Shouldrequestforthesakeofattain,andconsiderthecostoftheeconomicalelectronicscomponent,toattainthebiggestandeconomicperformance,adoptlittleprogramballogiccontrollertocontrolthechangeofthetrafficallight,wehavechecedthepresenttrafficcontrolunit,shooseabestp
7、lan,inordetoalleviatethepresenttrafficpressure.KEYWORDS:Trafficlight;PLC;Tutomaticalliescontrol目錄27基于PLC的交通信號(hào)燈控制系統(tǒng)設(shè)計(jì).….....………………………………………6摘要…......…………………….....................…………………………………………………..6目錄….....….....................………………………………………………………………………..8前言….…….………………
8、……………………………………………………………………..9第一章概述…….…………………………………………………………………………10§1.1交通燈的發(fā)展史..................