摘要
设计的智能交通系统采用可编程控制器(Programmable Logic Controller)。用地感线圈来检测十字交叉路口的车速,车流量,然后通过PLC的串行口向上位机进行串行通信传输数据,在传输的同时,判断道路繁忙情况,来控制交通灯的时间,缓解道路的堵塞。
PLC is used in the design of intelligent transportation system.Ground induction coil is used to detect the vehicle speed and flow at the crossroads,and then the data is transmitted to upper computer with serial communication via the serial port of PLC.At the same time,the traffic situation is judged to control the traffic light so that the traffic jam can be alleviated.
出处
《天津职业院校联合学报》
2010年第6期154-157,共4页
Journal of Tianjin Vocational Institutes
关键词
PLC
智能交通
地感线圈
串行通信
PLC
intelligent transportation
ground induction coil
serial communication
