Machine failure isolation using qualitative physics

Details Machine failure isolation using qualitative physics Machine failure isolation using qualitative physics

1990-07-06

1993-02-16

MacDonald, Allen R.

Boots, shoes, and leggings

36455102, 395911, 395912, G06F 1500

Patent

active

051877732

ABSTRACT:
A Qualitative Reasoning System (QRS) performs machine failure isolation by generating a plurality of pending hypotheses which assume the failure of one or more machine components and by testing each of the hypotheses by propagating actual values for machine parameters through confluence equations for the hypothosis being tested. Hypotheses which produce an inconsistent set of predictions are discarded while hypotheses which produce a consistent set of predictions are saved. The hypotheses are generated using a model instance data element which contains a qualitative physics model description of the machine. The machine failure is isolated when all but one hypothesis, which assumes the failure of one or more elementary machine components, remains.

REFERENCES:
patent: 4939680 (1990-07-01), Yoshida
An Application of Qualitative Reasoning to Process Diagnosis: Automatic rule generation by qualitative simulation, Y. Ishida, pp. 124-129.
Application of Constraint Suspension Techniques to Diagnosis in Helicopter Caution/Warning Systems by Greg Glenn (McDonnell Douglas Helicopter Company, Mesa, Arizona).
Diagnosing Multiple Faults by Johan de Kleer and Brian C. Williams (Artificial Intelligence 32 (1987) 97-130).
Commonsense Reasoning About Causality: Deriving Behavior From Structure by Benjamin Kuipers (Artificial Intelligence 24 (1984) 169-203).
The Origin, Form and Logic of Qualitative Physical Laws by Johan de Kleer and John Seely Brown (Proceedings of the Eighth International Joint Conference on Artificial Intelligence, Karlsruhe, W. Germany, Aug. 1983).
Helix: A Helicopter Diagnostic System Based on Qualitative Physics by Thomas P. Hamilton (International Journal of Artificial Intelligence in Engineering, vol. 3, No. 3, Jul. 1988 pp. 141-150).
Reasoning About Device Behavior Using Qualitative Physics by T. P. Hamilton and C. Jacobsen (American Helicopter Society National Specialists' Meeting, Atlanta, Ga. Apr.4-6, 1988).
A Qualitative Physics Based on Confluences by Johan de Kleer and John Seely Brown (Artificial Intelligence Dec. 24, 1984 7-83).
Diagnostic Reasoning Based on Structure and Behavior by Randall Davis (Artificial Intelligence 24 (1984) 347-410).

Affiliated with

Also associated with

Rating

Machine failure isolation using qualitative physics does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Machine failure isolation using qualitative physics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Machine failure isolation using qualitative physics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2153883