plc交通信號燈畢業(yè)論文

1、南通農(nóng)業(yè)職業(yè)技術(shù)學(xué)院學(xué)生畢業(yè)論文PLC 在交通信號燈的應(yīng)用 正文第 1 頁 共 24 頁南通農(nóng)業(yè)職業(yè)技術(shù)學(xué)院畢 業(yè) 論 文 （ 設(shè) 計 ）課 題 名 稱 PLC 在交通信號燈中的應(yīng)用專 業(yè) 及 班 級 電氣自動化 3111學(xué) 號 1162306121姓 名 盧飛指 導(dǎo) 老 師 邵美玲2013 年 5 月 22 日南通農(nóng)業(yè)職業(yè)技術(shù)學(xué)院學(xué)生畢業(yè)論文PLC 在交通信號燈的應(yīng)用 正文第 3 頁 共 24 頁關(guān)鍵詞 關(guān)鍵詞 交通信號燈 P

2、LC 程序 設(shè)計PLC PLC application application in in traffic traffic lights lightsAbstract AbstractThe most ancient trafficl light control unit was designed by digital electric circuit. With the development of science and tec

3、hnology,the traffic light which designed by electric circuit can not contain the increseing pressure of the traffical day by day,so we must find a new method to replace the control unit which is complex and worked instea

4、dy.Nowaday,the technical of programbal logic controller advanced raiply,and use more and more wide.PLC（Programmable Controller）is one of the most important components of the industry automation. PLC provide automa

5、tion solution across a broad range of many industries. With the development of science and technology, the function of PLC is more and more perfect, and its get smaller, smarter, more interoperable, more reliable.this th

6、esis was designed by PLC to control the traffical light.we design a traffical lightBased on application of PLC in the traffic system, this paper systematically describes the foundational principium,the request of the des

7、ign must be beautiful, generous, the economy apply, has many varieties. Should request for the sake of attain, and consider the cost of the economical electronics component, to attain the biggest and economic performance

8、,adopt little programbal logic controller to control the change of the traffical light,we have checed the present traffic control unit,shoose a best plan,in orde to alleviate the present traffic pressure.PLC programmable