The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 04, 1995

Filed:

Mar. 30, 1993
Applicant:
Inventors:

Fletcher L Hill, Golden, CO (US);

Nancy R Jurestovsky, Golden, CO (US);

Douglas A Holm, Broomfield, CO (US);

Gregory A Pinkham, Berthoud, CO (US);

Assignee:

Storage Technology Corporation, Louisville, CO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395575 ; 371 151 ; 371 291 ;
Abstract

The hierarchical distributed knowledge based system functions in a machine initiated maintenance environment to provide efficient and timely maintenance of customer equipment. The hierarchical, distributed knowledge based system provides the failure evaluation function through the use of an expert or knowledge based system that is installed in the customer equipment. The knowledge based system makes use of a set of rules and hypotheses to operate on data collected from various points within the customer equipment to monitor the operational integrity of the customer equipment. This knowledge based system identifies the occurrence of a failure within the customer equipment and functions using its rules, hypotheses and collected data to isolate the source of the error in the customer equipment and, whenever possible, 'fence' or isolate the failed field replaceable unit that has caused the error. A significant additional attribute of this system is the provision of at least one more level of knowledge based system to provide a more global failure evaluation capability.


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