Method and system of monitoring, sensor validation and predictive fault analysis
First Claim
1. A computer-implemented monitoring, validation and analysis system for a process control system having real-time data and process control system alarms, comprising:
- a real-time sensor data communication bridge module for collecting said real-time data;
a sensor validation and predictive fault analysis module for sensor validation and predictive fault analysis; and
a state transition logic module for determining when said sensor validation and predictive fault analysis module should operate;
wherein each of said modules operates simultaneously and interactively.
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Abstract
The present invention provides an improved method and system for real-time monitoring, validation, optimization and predictive fault analysis in a process control system. The invention monitors process operations by continuously analyzing sensor measurements and providing predictive alarms using models of normal process operation and statistical parameters corresponding to normal process data, and generating secondary residual process models. The invention allows for the creation of a fault analyzer directly from linearly independent models of normal process operation, and provides for automatic generation from such process models of linearly dependent process models. Fuzzy logic is used in various fault situations to compute certainty factors to identify faults and/or validate underlying assumptions. In one aspect, the invention includes a real-time sensor data communications bridge module; a state transition logic module; a sensor validation and predictive fault analysis module; and a statistical process control module; wherein each of the modules operates simultaneously.
86 Citations
14 Claims
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1. A computer-implemented monitoring, validation and analysis system for a process control system having real-time data and process control system alarms, comprising:
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a real-time sensor data communication bridge module for collecting said real-time data; a sensor validation and predictive fault analysis module for sensor validation and predictive fault analysis; and a state transition logic module for determining when said sensor validation and predictive fault analysis module should operate; wherein each of said modules operates simultaneously and interactively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification