| The New Fault Tolerant Onboard Computer for Microsatellite Missions |
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| 作者姓名： | WANG Xin-sheng SUN Han-xuAutomation School Beijing University of Posts and Telecommunications Beijing P.R. China |
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| 作者单位： | WANG Xin-sheng，SUN Han-xuAutomation School，Beijing University of Posts and Telecommunications，Beijing 100876，P.R. China |
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| 摘 要： | 1IntroductionWith the space technology developing,much moreCommercial-Off-The-Shelf(COTS)devices are used inmicrosatellites that are mostlylocatedin Low Earth Or-bit(LEO)1~3].The COTS devices have relatively lowpower consumption,high processing performan…
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| 收稿时间： | 28 March 2005 |
The New Fault Tolerant Onboard Computer for Microsatellite Missions |
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| WANG Xin-sheng,SUN Han-xuAutomation School,Beijing University of Posts and Telecommunications,Beijing ,P.R. China.The New Fault Tolerant Onboard Computer for Microsatellite Missions[J].The Journal of China Universities of Posts and Telecommunications,2006,13(1):6-9. |
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| Authors: | WANG Xin-sheng SUN Han-xu |
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| Affiliation: | Automation School, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China |
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| Abstract: | This paper describes an onboard computer with dual processing modules. Each processing module is composed of 32bit ARM reduced instruction set computer processor and other commercial-off-the-shelf devices. A set of fault handling mechanisms is implemented in the computer system, which enables the system to tolerate a single fault. The onboard software is organized around a set of processes that communicate among each other through a routing process. Meeting an extremely tight set of constraints that include mass, volume, power consumption and space environmental conditions, the fault-tolerant onboard computer has excellent data processing capability that can meet the erquirements of micro-satellite missions. |
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| Keywords: | onboard computer fault tolerance commerciat-off-the-shelt |
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