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Proceedings Paper

Sensors and systems for space applications: A methodology for developing fault detection, diagnosis, and recovery
Author(s): John L. Edwards; Randy M. Beekman; David B. Buchanan; Scott Farner; Gary R. Gershzohn; Mbuyi Khuzadi; D. F. Mikula; Gerry Nissen; James Peck; Shaun Taylor
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Paper Abstract

Human space travel is inherently dangerous. Hazardous conditions will exist. Real time health monitoring of critical subsystems is essential for providing a safe abort timeline in the event of a catastrophic subsystem failure. In this paper, we discuss a practical and cost effective process for developing critical subsystem failure detection, diagnosis and response (FDDR). We also present the results of a real time health monitoring simulation of a propellant ullage pressurization subsystem failure. The health monitoring development process identifies hazards, isolates hazard causes, defines software partitioning requirements and quantifies software algorithm development. The process provides a means to establish the number and placement of sensors necessary to provide real time health monitoring. We discuss how health monitoring software tracks subsystem control commands, interprets off-nominal operational sensor data, predicts failure propagation timelines, corroborate failures predictions and formats failure protocol.

Paper Details

Date Published: 3 May 2007
PDF: 10 pages
Proc. SPIE 6555, Sensors and Systems for Space Applications, 65550R (3 May 2007); doi: 10.1117/12.718703
Show Author Affiliations
John L. Edwards, The Boeing Co. (United States)
Randy M. Beekman, The Boeing Co. (United States)
David B. Buchanan, The Boeing Co. (United States)
Scott Farner, The Boeing Co. (United States)
Gary R. Gershzohn, The Boeing Co. (United States)
Mbuyi Khuzadi, The Boeing Co. (United States)
D. F. Mikula, The Boeing Co. (United States)
Gerry Nissen, The Boeing Co. (United States)
James Peck, The Boeing Co. (United States)
Shaun Taylor, The Boeing Co. (United States)

Published in SPIE Proceedings Vol. 6555:
Sensors and Systems for Space Applications
Richard T. Howard; Robert D. Richards, Editor(s)

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