Integrated failure detection and management for the Space Station Freedom external active thermal control systemThis paper presents the integrated approach toward failure detection, isolation, and recovery/reconfiguration to be used for the Space Station Freedom External Active Thermal Control System (EATCS). The on-board and on-ground diagnostic capabilities of the EATCS are discussed. Time and safety critical features, as well as noncritical failures, and the detection coverage for each provided by existing capabilities are reviewed. The allocation of responsibility between on-board software and ground-based systems, to be shown during ground testing at the Johnson Space Center, is described. Failure isolation capabilities allocated to the ground include some functionality originally found on orbit but moved to the ground to reduce on-board resource requirements. Complex failures requiring the analysis of multiple external variables, such as environmental conditions, heat loads, or station attitude, are also allocated to ground personnel.
Document ID
19950058789
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mesloh, Nick (NASA US United States)
Hill, Tim (NASA Headquarters Washington, DC United States)
Kosyk, Kathy (NASA Headquarters Washington, DC United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
ISSN: 0148-7191
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
SAE PAPER 932149
Meeting Information
Meeting: International Conference on Environmental Systems