Plant fault diagnosis system
Patent 5070468 Issued on December 3, 1991. Estimated Expiration Date: 
October 12, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 12, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of operating power plants Facilities control method Facilities control method Rule based diagnostic system with dynamic alteration capability Diagnostic apparatus Two speed automatic shift drill Methods and apparatus for system fault diagnosis and control Patent #: 4649515 InventorsAssigneeApplicationNo. 598770 filed on 10/12/1990US Classes:702/185, Cause or fault identification702/179, Statistical measurement706/914Process plantExaminersPrimary: Black, Thomas G.Attorney, Agent or FirmForeign Patent References
International ClassG06F 011/32Foreign Application Priority Data1988-07-20 JPAbstractThe present invention relates to a plant fault diagnosing system for diagnosing the operating conditions of the plant, for example, change in the physical quantity or whether any fault is present in each of the instrumentations or not. This system makes reference and makes directly comparison the process data of the plant or a diagnosing pattern processed by treating the process data in a predetermined process with a predetermined information for detecting showing the symptom of an abnormality or a predetermined reference value. When any deviation from a predetermined allowable range or coincidence of the patterns is detected, it determines that there is any abnormality in the plant, and issues an alarm to, for example, an operator.Other References
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