十字路口交通信号灯的PLC控制程序设计

AbstactLast year,China made brilliant achievements in building a moderatelyprosperous society in an all-round way.The economic level continued to improve,every family gradually became rich,people's travel also changed greatly,and moreand more private cars on the traffic road.Subsequently,the traffic congestion isbecoming more and more serious,and the traffic lights used to guide the traffic arealso playing a more and more important role.Therefore,it is necessary to make atraffic lights with a simple system,strong control intensity,less management cost andlow human resource cost.This design is mainly composed of Siemens PLC,sensor,traffic signal light,etc.The PLC provides real-time intelligent traffic signal controlthrough program control and sensor signal transmission.Finally,the effect ofconvenient road.Using PLC can also control the traffic flow at each intersectionthrough communication connection,reduce the cost of human and material resources,in line with the concept of green development,so this paper uses PLC as the core tomake an intelligent traffic control system[Key Word]:PLC,Traffic Flow,Intelligence,Programming