Fault finder expert system

Details Fault finder expert system Fault finder expert system

Filed on

1990-10-22

Date issued

1993-05-25

Examiner

Atkinson, Charles E.

Patent Class

Excavating

Other Related Categories

3642763, 364DIG1, 395575, 395916, G06F 1100, G01R 3128

Type

Patent

Status

active

Patent number

052146537

Description

ABSTRACT:
A device for finding faults in a target system that has a plurality of "LRUs", which are the lowest replaceable units in the target system. The fault finding device receives input data relating to a state of the target system, stores a probability of failure of individual LRUs of the target system, and stores rules, these rules relating conclusions and premises, with at least some of the conclusions identifying a faulty LRU. The device determines a certainty of a conclusion of a stored rule in response to a comparison of the premises of the rule and the input data, and orders the conclusions of the stored rules as a function of both the probability of failure of individual LRUs and the certainties of conclusions of the stored rules.

REFERENCES:
patent: 4964125 (1990-10-01), Kim
patent: 5067129 (1991-11-01), Evans et al.
patent: 5107497 (1992-04-01), Lirov et al.
patent: 5107500 (1992-04-01), Wakamoto et al.
patent: 5109380 (1992-04-01), Ogino

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