Title :
Fault tolerance design on onboard computer using COTS components
Author :
Wang, Xinsheng ; Sun, Hanxu
Author_Institution :
Autom. Sch., Beijing Posts & Telecommun. Univ.
Abstract :
A fault tolerance design on onboard computer (OBC) is proposed that allows commercial-off-the-shelf (COTS) devices to be incorporated into dual processing modules of onboard computer. The processing module is composed of 32-bit ARM RISC processor and other COTS devices. As well as, a set of fault handling mechanisms is implemented in the computer system. The onboard software was organized around a set of processes that communicate between each other through a routing process. The fault tolerant onboard computer has excellent data processing capability and is enough to meet the demands of the extremely tight constraints on mass, volume, power consumption and space environmental conditions
Keywords :
aircraft computers; fault tolerant computing; microprocessor chips; reduced instruction set computing; 32 bit; ARM RISC processor; COTS components; commercial-off-the-shelf device; dual processing module; fault handling mechanisms; fault tolerant design; onboard computer; onboard software; space environmental condition; Central Processing Unit; Computer architecture; Computer interfaces; Distributed computing; Fault tolerance; Fault tolerant systems; Hardware; Low earth orbit satellites; Military computing; Single event upset;
Conference_Titel :
Systems and Control in Aerospace and Astronautics, 2006. ISSCAA 2006. 1st International Symposium on
Conference_Location :
Harbin
Print_ISBN :
0-7803-9395-3
DOI :
10.1109/ISSCAA.2006.1627586
