分布式实时控制系统通讯子网设计研究

The Design Research of a Communication Subnet for Distributed Real-Time Control Systems

本文针对分布式实时控制系统(DRCS)结点间信息交换的特点,研究设计了一个基于MIL-STD-1553B 总线的DRCS 通讯子网—1553BCN.1553BCN 向子网用户提供具有“恰一次”(exaltly once)可靠性语义的可变长消息通讯服务.它支持结点间有优先级差别的访问(使用)通信子网并实现了子网的容错(降级)管理.

Based on the analysis of informationinterchange among nodes of Distributed Real-Time Control Systems(DRCS).this paperpresents the design and implementation of aDRCS communication subnet-1553 BCNwhich is based on MIL-STD-1553B bus.The1553BCN provides its user with a length-variable message passing service which imple-ments the reliability semantics of“exactlyonce”.The main features of 1553BCN are itsprioritized user-access to the subnet and itsautonomous fault-tolerant(degradation)mana-gement.