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由于飞行器控制系统中需要共享的数据量急剧增加且系统控制周期越来越快,导致数据传输总线的网络负载率越来越高,系统的实时性和可靠性受到影响而变差.为此,综合总线任务调度算法、冗余设计方法和网络管理策略,提出一种多功能双CAN网络混合调度策略.实验结果表明:该策略不但可以实现数据传输通道的冗余备份功能,提高了系统的可靠性,而且还保证了关键指令信息传输的实时性和非实时状态信息传输的公平性.
As the amount of data to be shared in the aircraft control system increases sharply and the system control cycle is getting faster and faster, the network load rate of the data transmission bus is getting higher and higher, and the real-time and reliability of the system are affected and worsen.Therefore, This paper proposes a hybrid multi-functional dual CAN scheduling strategy based on the bus scheduling algorithm, redundant design method and network management strategy.The experimental results show that this strategy can not only realize the redundant backup function of data transmission channel but also improve the reliability of the system But also guarantees the fairness of real-time transmission of critical command information and transmission of non-real-time status information.