A representational basis for the development of a distributed expert system for Space Shuttle flight control

Abstract

A new representation of malfunction procedure logic which permits the automation of these procedures using Boolean normal forms is presented. This representation is discussed in the context of the development of an expert system for space shuttle flight control including software and hardware implementation modes, and a distributed architecture. The roles and responsibility of the flight control team as well as previous work toward the development of expert systems for flight control support at Johnson Space Center are discussed. The notion of malfunction procedures as graphs is introduced as well as the concept of hardware-equivalence.

Authors

• Helly, J. J., Jr. California Univ.
• Bates, W. V. NASA Lyndon B. Johnson Space Center
• Cutler, M. Aerospace Corp.
• Kelem, S. NASA Lyndon B. Johnson Space Center