双总线通信架构的航电系统双机备份技术研究  

Research on Dual-machine Backup Technology in Dual-bus Communication System

作　　者：谭菲 王金升 朱剑锋[1] TAN Fei;WANG Jin-sheng;ZHU Jian-feng(China National Aeronautic Radio Electronics Research Institute,Shanghai 200241,China;AVIC The First Aircraft Institute,Xi'an 710089,China)

机构地区：[1]中国航空无线电电子研究所,上海200241 [2]航空工业第一飞机设计研究院,西安710089

出　　处：《航空电子技术》2022年第4期24-28,共5页Avionics Technology

摘　　要：针对采用两种通信总线作为主要通信的复杂航电系统,通过研究其体系结构,利用故障树对系统可能故障进行分析,优化了单总线通信系统中主备机表决算法,设计了一种双总线通信系统中主备机的同步和双机切换机制,提升了双机切换的性能,实现了系统故障时的平滑切换运行,提高了双机切换的实时性和双机备份系统的可靠性。The architecture of complex system is studied, in which devices communicating via two types of bus, and fault analysis trees are built for the typical faults. Based on the optimized voting algorithm of the single bus system for switching the master and backup, a mechanism is designed to switch master-backup in the dual bus system and to synchronize the information. The mechanism can give a big improvement on the performance and reliability of the master-backup switching.

关 键 词：双总线通信 双机切换 故障树 

分 类 号：TP302.8[自动化与计算机技术—计算机系统结构]