CAN FD总线在交通信号控制系统中的应用设计

Application Design of CAN FD Bus in Traffic Signal Control System

结合交通信号控制系统现状,提出了一套基于CANFD总线的交通信号控制系统的研究方案,用于解决复杂交通路口多设备间的通信问题。该系统通过CANFD总线将系统中所有设备连接起来,实现系统间各设备间正常的数据交互,以控制主机和交通信号灯驱动控制器间的通信。设备均采用内置CANFD控制器的STM32H743系列单片机作为主控制器,在此基础上自定义了CANFD总线应用层协议,构成了一个完整的系统间通信方案。测试结果表明,此系统可靠性高、实时性强、抗干扰能力强、出错率低,具有良好的应用前景。

Combined with the current situation of traffic signal control system,a research scheme of traffic signal control system based on CAN FD bus is proposed to solve the communication problem between multiple devices at complex traffic intersections.In the system,all devices were connected through the CAN FD bus,so as to conduct data interaction among various devices,and the main research direction was to control the communication between the host computer and the traffic signal driving controller.The devices used the STM32H743 series MCU with built-in CAN FD controller as the main controller.On this basis,the CAN FD bus application layer protocol was customized to form a complete inter-system communication scheme.The test results show that the system has high reliability,strong real-time performance,strong anti-interference ability and low error rate,and has good application prospects.