基于一主多从结构的系统控制器容错管理方法

Fault Tolerance Management Method of System Controller Based on One-Master Multi-Slave Structure

目前,系统控制器广泛采用基于一主单从结构的容错管理方法,当驻留系统管理的两个CPM模块同时或相继发生失效时,IMA系统将面临无系统控制器可用的局面,严重影响飞行任务的安全。针对IMA系统的安全、可靠运行问题,提出了一种基于一主多从结构的系统控制器容错管理方法,方法将系统控制器的余度增加到所有可以驻留系统管理的CPM模块数量,各余度之间采用热备份与温备份相结合的工作方式,通过故障自动报告和系统控制权主动切换,实现提高系统控制器的容错能力的目的。通过在某型机载IMA平台中开展对比实验,验证结果表明,与基于一主单从结构的容错管理方法相比,方法能够有效提高IMA系统的安全性、可靠性,同时满足系统管理的重构时间要求。

At present,the fault tolerance management method based on One-Master Single-Slave structure is widely used,when the two CPM modules hosting the system management fail at the same time or successively,the IMA system will face the situation of no system controller available,which will seriously affect the safety of the flight mission.Aiming at the safe and reliable operation of IMA system,a fault tolerance management method of system controller based on One-Master Multi-Slave structure is proposed,the redundancy of system controller is increased to the number of CPM modules that can host the system management,the working mode of combining hot backup and warm backup is adopted between each redundancy,through automatic fault report and active switching of system control power,the purpose of improving the fault tolerance ability of the system controller is realized.Through the comparative experiment on an airborne IMA platform,the verification results show that compared with the fault tolerance management method based on One-Master Single-Slave structure,this method can effectively improve the safety and reliability of the IMA system,and meet the requirements of reconfiguration time of system management.