3 May 2007 Sensors and systems for space applications: a methodology for developing fault detection, diagnosis, and recovery
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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.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John L. Edwards, John L. Edwards, Randy M. Beekman, Randy M. Beekman, David B. Buchanan, David B. Buchanan, Scott Farner, Scott Farner, Gary R. Gershzohn, Gary R. Gershzohn, Mbuyi Khuzadi, Mbuyi Khuzadi, D. F. Mikula, D. F. Mikula, Gerry Nissen, Gerry Nissen, James Peck, James Peck, Shaun Taylor, Shaun Taylor, } "Sensors and systems for space applications: a methodology for developing fault detection, diagnosis, and recovery", Proc. SPIE 6555, Sensors and Systems for Space Applications, 65550R (3 May 2007); doi: 10.1117/12.718703; https://doi.org/10.1117/12.718703
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