Boots – shoes – and leggings
Patent
1988-11-03
1992-03-24
Black, Thomas G.
Boots, shoes, and leggings
371 26, 395911, 395912, 395914, G06F 1518
Patent
active
050994360
ABSTRACT:
A diagnostic tool based on a hybrid knowledge representation of a system under test is disclosed. Data collected from the system during its operation is compared to an event based representation of the system which comprises a plurality of predefined events. An event is recognized when the collected data matches the event's critical parameter. The recognized event is analyzed and an associated set of ambiguity group effects, which specify components to be re-ranked in an ambiguity group according to an associated ranking effect. Additonally, a symptom-fault model and a failure model can be analyzed to determine symptom-fault relationships and failure modes which are applicable to the system operation. Each applicable symptom-fault relationship and failure mode is also associated with a set of ambiguity group effects which rerank the ambiguity group. A structural model is analyzed starting with the components in the ambiguity group having the greatest probability of failure. As a result of the analysis, maintenance options specifying tests to be performed on the system are output.
REFERENCES:
patent: 4632802 (1986-12-01), Herbst et al.
patent: 4642782 (1987-02-01), Kemper et al.
patent: 4644479 (1987-02-01), Kemper et al.
patent: 4649515 (1987-03-01), Thompson et al.
patent: 4658370 (1987-04-01), Erman et al.
patent: 4704695 (1987-11-01), Kimura et al.
patent: 4752890 (1988-06-01), Natarajan et al.
patent: 4754409 (1988-06-01), Ashford et al.
patent: 4763277 (1988-08-01), Ashford et al.
patent: 4766595 (1988-08-01), Gollomp
patent: 4841456 (1989-06-01), Hogan, Jr. et al.
patent: 4847795 (1989-07-01), Baker et al.
DeKleer, "Choices Without Backtracking," Proceedings of the American Association of Artificial Intelligence 1984 Conference, pp. 79-85.
Davis, "Diagnostic Reasoning Based on Structure and Behavior," in Qualitative Reasoning about Physical Systems at pp. 347-410, The MIT Press, 1985.
Kuipers, "The Limits of Qualitative Stimulation," Proc. of the Inter. Joint Conf. on Art. Intel., IJCAI 85.
Pan et al., "P.I.E.S.: An Engineer's Do-It-Yourself Knowl. Sys. for Inter. of Parametric Test Data," Proc. of the Amer. Assoc. of Art. Intel. Conf., pp. 836-843, 1986.
Forbus, "Interpreting Measurements of Physical Systems," Proceedings of the American Association of Artificial Intelligence Conference, pp. 113-117, 1986.
Fink et al., "The Integ. Diag. Model--Towards a Second Gen. Diag. Expert," pp. 188-197, Proc. of the Air Force Workshop on Art. Intel. Appl. for Integrated Diagnostics, Jul. 1986.
Chu, "Approaches to Auto. Fault Diag.: A Crit. Eva.," Rpt. #SETR-86-001 of the Software Eng. Tech. Series prepared by the Allied-Signal Aerospace Co.--Bendix Test Systems Div., Jul. 1986.
Abbott et al., "Faultfinder; a diag. expert sys. with graceful degradation for onboard aircraft appli.," 14th Inter. Sym. on Aircraft Integrated Monitoring Systems, 1987.
Kolodner, "Extending Prob. Solver Capabilities through Case-Based Inference," Proc. of the 4th Ann. Inter. Machine Learning Workshop, pp. 21-30, 1987.
Kamal et al., "Event-Based Learning for Monitoring Rotating Machinery," 2nd Proc. of Appli. of Art. Intel. in Engineering Conference, pp. 1-20, Aug. 1987.
Holtzblatt, "Diagnosing Multiple Failures Using Knowledge of Component States", Proceedings of the CAIA 1988, pp. 134-143.
Abbott, "Robust Oper. Diag. as Prob. Solving in a Hypothesis Space," 1988 Proc. of the Amer. Assoc. of Art. Intel., pp. 369-394.
Koton, "Reasoning About Evidence in Causal Expl.," Proc. Case-based Reasoning Workshop sponsored by DARPA, pp. 260-270, May 1988.
Rose, "Thinking Machine--An Electronic Clone of a Skilled Engineer is Very Hard to Create," in the Wall Street Journal, Aug. 12, 1988.
Conway Timothy J.
McCown Patricia M.
Allied-Signal Inc.
Black Thomas G.
Malvone Christopher N.
Massung Howard G.
Walsh Robert A.
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