一种2×2架构容错计算机的设计与实现  

Design and Implementation of a Fault-tolerant Computer with 2×2 Architecture

作　　者：王昭 王萌[1] 安书董 

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710068

出　　处：《工业控制计算机》2022年第5期44-45,72,共3页Industrial Control Computer

基　　金：航空科学基金项目资助(2017ZC31008)。

摘　　要：飞行控制系统对飞行控制品质和飞行安全有着重要作用,飞控计算机作为飞行控制系统的核心部件,对安全性和可靠性提出了很高的需求,容错计算机通过管理余度资源完成控制任务,有效解决了系统故障时安全模式的策略问题。设计的容错计算机采用2×2余度架构,主控计算机通过安全指示电路向热备份计算机输出状态信号,用以标明释放控制输出权,单台计算机内主控通道和监控通道的功能不完全对等,每个通道基于3个硬件功能区和2个软件配置项完成计算机的基本功能。测试结果表明,该架构的容错计算机较好地完成了预期目标。Flight control system plays an important role in flight control quality and flight safety.As the core component of the flight control system,the flight control computer puts high demands on safety and reliability.Fault-tolerant computer completes control tasks by managing redundant resources and effectively solve the strategy problem of safety mode when the system fails.The designed fault-tolerant computer uses 2×2 redundancy architecture,the main control computer outputs a status signal to the hot backup computer through the safety indicating circuit,which marks release the control output right.The function of the main control channel and the monitoring channel in single computer are not completely equivalent,each channel completes the basic function based on three hardware functional areas and two software configuration items.The test results show the fault-tolerant computer with this architecture achieves the expected goal well.

关 键 词：容错计算机 余度管理 安全指示 通道互比 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]