Abstract: Aiming at features of the upper stage rocket computer,such as strong real-time property,high reliability and space radiation resistance,a new computer technology based on redundanly and reconfiguration is proposed.This paper describes the key technologies of the upper stage rocket computer,including the computer architecture,working mode,redundancy reconfiguration,self-recovery,and anti-radiation.It designs the upper stage rocket computer by multi-redundancy,reconfiguration and self-recovery technologies,enabling the computer to tolerate double redundancy fault and improving the reliability of the computer in space nvironment.Experimental result shows that the upper state rocket computer can tolerate double redundancy fault and detect the fault effectively.The self-recovery time is less than 8 seconds.

Key words: upper stage, multi-redundancy, reconfigurable, fault detection, self-recovery, Single Event Upset(SEU), Single Event Latchup(SEL)

摘要： 针对上面级火箭强实时性、高可靠性和空间抗辐射的要求,提出一种基于多冗余可重构的计算机技术。描述上面级箭载计算机体系构架、工作模式、冗余重构、自主恢复、抗辐照设计等关键技术,运用多模冗余、可重构、自主恢复等进行上面级箭载计算机设计,从而提高上面级箭载计算机空间环境下的可靠性。实验结果表明,上面级箭载计算机可容忍双余度故障并对故障进行有效的检测,故障机自主恢复时间小于8 s。

关键词: 上面级, 多冗余, 可重构, 故障检测, 自主恢复, 单粒子翻转, 单粒子锁定

CLC Number: 

• TP391