容错箭载计算机的硬件故障注入方法研究

容错机制和设计方案的正确性验证是容错箭载计算机研制的重要环节,验证方法有理论计算、软件模拟和硬件模拟等3种。硬件故障注入法采用人为引入故障方法可加速系统的失效,并通过观察系统在出现故障之后的行为反应对容错计算机系统的容错能力进行评价,更适合工程应用。本文研究采用硬件故障注入方法和特定容错测试仪,对容错箭载计算机的容错机制和设计方案进行了正确性验证,为容错箭载计算机的工程应用奠定技术基础。

The Hardware Fault Injection Technique Research for Fault-tolerant Onboard Computer of Launch Vehicle

Verifying the feasibility of fault-tolerant system and design scheme is a vital link for making fault-tolerant onboard computer of launch vehicle.Theory calculation and software emulation and hardware emulation are three verifying methods.Hardware fault injection technique uses man-made fault to accelerate system failure,and evaluates the fault-tolerant ability by observing the reaction to system failure.So that it is appropriate to engineering application.By applying hardware fault injection technique and given fault-tolerant testing equipment,the validity of fault-tolerant system and design scheme of fault-tolerant onboard computer of launch vehicle are validated.The technique establishes the foundation of engineering application for launch vehicle-on-board computer.