两级CAN总线网络数据通信调度研究

Scheduling of Communication in CAN System with Two Grades

为实现CAN总线在大型分布式实时系统中的应用,建立了能够满足多节点实时通信需求的两级CAN总线网络,并对两级CAN总线网络中的数据通信和调度进行分析.在结合实际应用的基础上,提出适用于两级CAN总线网络通信调度的通信协议和节点的数据通信调度策略.通过搭建的两级总线网络模型进行网络通信实验,结果表明,该通信调度方案能够满足应用要求.

In order to realize the application of the C A N bus in a large distributed control system,a C A N system with two grades is established to meet the demands of real time communication. T h e n, the data com-munication and scheduling in the C A N with two grades are analyzed. Based on the actual application of the CAN bus system,the paper puts forward a communication protocol and a scheduling strategy which accords with the CAN system with two grades. Meanwhile, the researchers test the communication protocol and scheduling by constructing a two-grade C A N bus system model ？ The experiment shows that this communication scheduling can meet the application requirements.