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Información tecnológica

versão On-line ISSN 0718-0764

Resumo

VICENTE-VIVAS, Esaú  e  GARCIA-NOCETTI, Fabián. Mexican-Designed and Manufactured Triplex Flight Computer for the Satex Microsatellite. Inf. tecnol. [online]. 2006, vol.17, n.1, pp.69-76. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642006000100009.

This work describes the architecture designed and manufactured for the flight computer (FC) of the Satex experimental microsatellite (MES) which employs a triplex processor system based on a main microcomputer card and two complete cold stand-by spares. The FC is composed by six printed circuit boards, each one with surface-mount electronic parts assembled on both of its faces to reduce the amount of required hardware and therefore its weight. Most of the electronic components employed are of military specification; only the processors are industrial-type with extended temperature range and electronic protection against cosmic radiation. The overall characteristics of the computer, its validation processes, and reliability data obtained with the military norm MIL-HDBK217f are also presented.

Palavras-chave : flight computer; redundant processors; microsatellites and hardware reliability.

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