Patent ReferencesApparatus for measuring the degradation of a sensor time constant Guide path short detector Expert system for surveillance, diagnosis and prognosis of plant operation Expert system for online surveillance of nuclear reactor coolant pumps Method for recognition of abnormal conditions using neural networks Processing data base information having nonwhite noise System for monitoring an industrial process and determining sensor status Surveillance of industrial processes with correlated parameters Patent #: 5586066 InventorsAssigneeApplicationNo. 666938 filed on 06/19/1996US Classes:700/29, Having model700/44, Feed-forward (e.g., predictive)706/15, NEURAL NETWORK706/45, KNOWLEDGE PROCESSING SYSTEM706/47Ruled-based reasoning systemExaminersPrimary: Elmore, Reba I.Assistant: Patel, Ramesh Attorney, Agent or FirmInternational ClassG05B 013/04AbstractA system and method for monitoring an industrial process and/or industrial data source. The system includes generating time varying data from industrial data sources, processing the data to obtain time correlation of the data, determining the range of data, determining learned states of normal operation and using these states to generate expected values, comparing the expected values to current actual values to identify a current state of the process closest to a learned, normal state; generating a set of modeled data, and processing the modeled data to identify a data pattern and generating an alarm upon detecting a deviation from normalcy. | |