Statistical signatures used with multivariate statistical analysis for fault detection and isolation and abnormal condition prevention in a process
First Claim
1. A system for monitoring a process in a process plant, the system comprising:
- a data collection tool adapted to collect data representative of an operation of the process; and
a first analysis tool comprising a multivariate statistical analysis engine adapted to represent the operation of the process in a known state based on a set of collected reference data comprising a statistical measure of the operation of the process in the known state.
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Abstract
A system and method for monitoring a process in a process plant and detecting an abnormal condition includes collecting data representative of the operation of the process, performing a multivariate statistical analysis to represent the operation of the process in a known state based on a set of collected reference data, where the reference data includes a statistical measure of the operation of the process in the known state. The system and method may further include representing the operation of the process in an unknown state based on a set of monitored data, where the monitored data includes a statistical measure of the operation of the process in an unknown state, and using the output of the multivariate statistical analysis as an input, and comparing the process in the unknown state to the multivariate statistical representation of the operation of the process in the known state to determine the operational state of the process.
68 Citations
52 Claims
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1. A system for monitoring a process in a process plant, the system comprising:
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a data collection tool adapted to collect data representative of an operation of the process; and
a first analysis tool comprising a multivariate statistical analysis engine adapted to represent the operation of the process in a known state based on a set of collected reference data comprising a statistical measure of the operation of the process in the known state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for monitoring a process in a process plant, the method comprising:
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collecting data representative of an operation of the process;
calculating a statistical measure on the collected data representative of the operation of the process in a known state; and
performing a multivariate statistical analysis to represent the operation of the process in a known state based on a set of collected reference data comprising the statistical measure of the operation of the process in the known state. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A system for monitoring a process in a process plant, the system comprising;
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a first analysis tool adapted to generate a multivariate statistical representation of the operation of the process in a known condition based on reference statistical data representative of the operation of the process in the known condition; and
a second analysis tool adapted to represent the operation of the process in an unknown condition based on monitored statistical data representative of the process in the unknown condition within the multivariate statistical representation, and adapted to determine the unknown condition based on the observation of the monitored statistical data within the multivariate statistical representation as compared with the observation of the reference statistical data within the multivariate statistical representation. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification