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Spacecraft command verification: The AI solutionRecently, a knowledge-based approach was used to develop a system called the Command Constraint Checker (CCC) for TRW. CCC was created to automate the process of verifying spacecraft command sequences. To check command files by hand for timing and sequencing errors is a time-consuming and error-prone task. Conventional software solutions were rejected when it was estimated that it would require 36 man-months to build an automated tool to check constraints by conventional methods. Using rule-based representation to model the various timing and sequencing constraints of the spacecraft, CCC was developed and tested in only three months. By applying artificial intelligence techniques, CCC designers were able to demonstrate the viability of AI as a tool to transform difficult problems into easily managed tasks. The design considerations used in developing CCC are discussed and the potential impact of this system on future satellite programs is examined.
Document ID
19900012991
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fesq, Lorraine M.
(TRW Defense and Space Systems Group Redondo Beach, CA., United States)
Stephan, Amy
(TRW Defense and Space Systems Group Redondo Beach, CA., United States)
Smith, Brian K.
(California Univ. Los Angeles., United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1990
Publication Information
Publication: NASA, Goddard Space Flight Center, The 1990 Goddard Conference on Space Applications of Artificial Intelligence
Subject Category
Cybernetics
Accession Number
90N22307
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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