摘要
以树莓派作为上位机,西门子S7-200 SMART PLC为主要控制核心,视频车辆检测器为动态车流量采集模块,交通信号灯为主要控制对象,云平台为远程监控系统,采用modbus rtu通信协议进行树莓派与PLC的RS485的串口通信,实现信号灯智慧控制。通过该智慧交通控制系统全天候采集动态车流量信息,远程、自动调控交通灯配时,实现多种工作模式的切换,适用于复杂多变的城市交通。
The intelligent control of traffic lights were realized in the system where a Raspberry Pi works as the upper computer,Siemens S7-200 SMART PLC as the main control core,video vehicle detectors as the dynamic vehicle flow acquisition modules,traffic signal lights as the main control objects,and a cloud platform as the remote monitoring system,adopting the Modbus RTU communication protocol for serial communication between the Raspberry Pi and PLC’s RS485.Collecting dynamic traffic flow information in all weathers,and automatically adjusting the timing of traffic lights remotely,The IoT-based intelligent traffic control system will be able to applied to complex and changeable urban traffic with its multi-working mode switching.
作者
施凤鸣
骆旭坤
SHI Fengming;LUO Xukun(College of Information and Electronic Engineering, Liming Vocational University,Quanzhou 362000, China)
出处
《黎明职业大学学报》
2020年第4期82-87,共6页
Journal of LiMing Vocational University
基金
福建省教育厅基金项目(FJJKCGZ19-174)。
