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1、本科生畢業(yè)設(shè)計(jì)(論 文)題 目:基于歐姆龍 PLC 的智能交通燈系統(tǒng)設(shè)計(jì)學(xué)生姓名: XX 系 別: 電氣信息工程系 專業(yè)年級(jí) 電氣工程及其自動(dòng)化 06 級(jí)本科 1 班 指導(dǎo)教師: XXX 2010 年 6 月 1
2、0 日ABSTRACTThe municipal transportation signal control is through the adjustment, the warning and the induction which flows to the transportation achieved improves the person and the cargo safe transportation,enhancing t
3、he operation efficiency.At present, our country majority cities have already established the many kinds of traffic signal control system,timed control occupies proportion bigger, undulates a bigger road intersection in s
4、ome traffic flows,to realize the signal intelligent control to be imminent.Transport system is a random nature,ambiguity and uncertainty of complex systems,the establishment of mathematical models very difficult and some
5、times impossible to use existing mathematical methods described.Early signals control is regularly used by the process of elimination. According to the traffic conditions of the urban areas in China, this paper, from the
6、 design of a control system ,discusses a design of intelligent traffic control lights based on the application of the programmable logical control(PLC).Sensor coils are pre-buried at the corresponding crossroads to make
7、statistics of the vehicle flow, according to which the control time of the green light is changed ,and then ,the resource of the green light is reasonably distributed to improve the traffic capacity at the crossroads, re
8、duces the phenomenon of the vehicles stranded in a large scale ,solves the problems of not equilibrium and unstable traffic flow magnitude well. And in order to improve the control efficiency of the traffic lights. Key w
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