飞控系统余度管理软件故障追踪/重演方法

Fault Locating of Redundancy Management Software in Flight Control System Based on Record/Replay Method

飞控系统余度管理软件是多余度飞控计算机的核心软件之一,负责整个飞控系统信号监控、表决与故障综合等功能,具有多数据源、算法逻辑复杂等特点。故障的快速定位和分析越来越成为余度管理软件研制开发过程中的关键技术。分析了软件追踪重演技术在故障重现和定位中的作用,研究了余度管理软件追踪重演方法,并在飞控系统软件领域实现了轻量级余度管理软件统一追踪重演框架。实验结果表明,该追踪重演框架具备了实用性和可操作性,可以有效提高飞控系统余度管理软件故障定位的效率。

Redundancy management(RM) software is one of key component of flight control system,which is responsible for signal monitoring,voting and fault synthesizing of the whole system.The software has multi-data sources and complex algorithm logics.Fast fault locating and analysis is becoming a critical technique of RM.Record/relay method and its application in RM software are analyzed,and a generalized record/replay framework for RM software is realized.The test results show that this record/replay framework is practical and operable,and greatly improves fault locating efficiency in RM software.