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

fYear

2001

fDate

2001

Firstpage

47

Lastpage

56

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Autonomous Decentralized Systems, 2001. Proceedings. 5th International Symposium on

Conference_Location

Dallas, TX

Print_ISBN

0-7695-1065-5

Type

conf

DOI

10.1109/ISADS.2001.917394

Filename

917394