Title :
A high assurance on-line recovery technology for a space on-board computer
Author :
Yashiro, Hiroyuki ; Fujiwara, Teruo ; Mori, Kinji
Author_Institution :
IHI Aerosp. Co. Ltd., Japan
Abstract :
A high-assurance online recovery technology for a space on-board computer that can be realized using commercial devices is proposed whereby a faulty processor node confirms its normality and then recovers without affecting the other processor nodes in operation. Also, the result of an evaluation test using the breadboard model (BBM) implementing this technology is reported. Because this technology enables simple and assured recovery of a faulty processor node regardless of its degree of redundancy, it can be applied to various applications, such as a launch vehicle, a satellite or a reusable space vehicle. As a result, decreasing the cost of an on-board computer is possible while maintaining its high reliability
Keywords :
aerospace computing; costing; fault tolerant computing; online operation; redundancy; special purpose computers; system recovery; breadboard model; commercial devices; cost reduction; evaluation test; faulty processor node; high-assurance online recovery technology; launch vehicle; normality confirmation; processor node redundancy; reliability; reusable space vehicle; satellite; space on-board computer; Application software; Computer science; Costs; Maintenance; Satellites; Space shuttles; Space technology; Space vehicles; Testing; Vehicle safety;
Conference_Titel :
Autonomous Decentralized Systems, 2001. Proceedings. 5th International Symposium on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7695-1065-5
DOI :
10.1109/ISADS.2001.917394
