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Proceedings Paper

Use Of Communicating Expert Systems In Fault Diagnosis For Space Station Applications
Author(s): J. Y. Read; T. P. Howland; W. A. Perkins
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Paper Abstract

In many complex monitoring and diagnostic applications it is useful to build separate expert systems for different subsystems and have them operate (on different computers) mostly in an independent mode with only occasional interactions. There are many advantages of such a scheme including easier knowledge engineering and increased overall system performance. Using an enhanced version of the Lockheed Expert System (LES), we have developed a communicating expert systems for fault diagnosis and fault correction in a prototype for the Space Station Air Revitalization System (ARS). The system consists of three communicating expert systems, one for oxygen generation, one for CO2 removal and a supervisor for overall control. The three expert system modules communicate via mailboxes. The purpose of this work is to gain an understanding of the problems involved and advantages of using such a communicating expert systems framework.

Paper Details

Date Published: 20 February 1987
PDF: 10 pages
Proc. SPIE 0729, Space Station Automation II, (20 February 1987); doi: 10.1117/12.964855
Show Author Affiliations
J. Y. Read, Artifical Intelligence Center (United States)
T. P. Howland, Artificial Intelligence Center (United States)
W. A. Perkins, Artificial Intelligence Center (United States)

Published in SPIE Proceedings Vol. 0729:
Space Station Automation II
Wun C. Chiou, Editor(s)

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