摘要： 利用LonWorks现场总线技术,设计开发了一种基于现场总线的交通信号控制系统,将信号控制器、LED信号灯、倒计时器及检测器等作为LON节点组成一个完整的网络系统,能够有效地完成灯色控制、LED灯故障检测、绿冲突检测、倒计时驱动及交通量检测等任务。现场应用结果表明:LonWorks现场总线技术的应用可大大提高交通信号控制系统的稳定性和可靠性。

关键词: 交通信号控制, LonWorks现场总线, 故障检测, 交通量检测, 多微处理器系统

Abstract: A LonWorks fieldbus based traffic signal control system is designed and developed in this paper. The traffic controller, LED traffic signals, count-down signal and vehicle detectors are integrated as a whole network system. The system can accomplish tasks such as sign control, fault diagnosing for LEDs, green conflict detecting, count-down signal driving and traffic volume detecting. The results of field test show that applications of LonWorks fieldbus can enhance the stability and reliability of traffic signal control system effectively.

中图分类号: 

• TP273