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.
Patent No.:
Date of Patent:
Mar. 10, 1987
Filed:
Jul. 01, 1986
Timothy F Thompson, Pittsburgh, PA (US);
Robert M Wojcik, Greensburg, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
Method and apparatus for monitoring and diagnosing sensor and interactive based process systems. The knowledge base concerning the process system per se is in the form of a list stored in memory, which list includes domain specific rules in evidence-hypothesis form. This domain dependent information is devoid of means for interconnecting the rules to perform diagnostic services. A completely domain independent set of meta-level rules is stored in memory, which, in response to sensor and/or user input, searches the knowledge base and effectively constructs a rule network through which belief is propagated, to detect and report malfunctions, to output control signals for modifying the operation of the monitored system, and to aid users by providing information relative to malfunctions which pinpoints probable causes. The domain independent rules, in addition to the meta-level rules which search the knowledge base and interconnect domain specific rules, includes procedural rules for choosing which of the meta-level rules to apply when there is a choice. The procedural inference rules are independent and distinct from the meta-level rules which manipulate the knowledge base.