On-line multivariate analysis in a distributed process control system
First Claim
1. A system for monitoring a process in a process plant, the system comprising:
- a data collection tool adapted to collect real-time, on-line process data from a process control system within the process plant, wherein the collected on-line process data is representative of a normal operation of the process when the process is on-line and operating normally and wherein the collected on-line process data comprises a plurality of observations of a plurality of process variables and wherein the plurality of observations of a set of collected on-line process data comprises a first data space having a plurality of dimensions; and
an analysis tool comprising a multivariate statistical analysis engine adapted to represent the normal operation of the process based on a set of collected real-time, on-line process data comprising a measure of the normal operation of the process when the process is on-line and operating normally within a second data space having fewer dimensions than the first data space, and wherein the analysis tool is adapted to represent a real-time on-line operation of the process using monitored on-line process data as an input to a multivariate representation of the normal operation of the process within the second data space, wherein the monitored on-line process data comprises a measure of a real-time operation of the process when the process is on-line.
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Abstract
A method and system for monitoring a process in a process plant includes collecting data from a process control system within the process plant, where the data is representative of a normal operation of the process when the process is on-line and operating normally, performing a multivariate statistical analysis to represent the normal operation of the process based on a set of collected on-line process data comprising a measure of the normal operation of the process when the process is on-line and operating normally, and representing a real-time on-line operation of the process using monitored on-line process data as an input to the representation of the normal operation of the process, where the monitored on-line process data comprises a measure of a real-time operation to the process when the process is on-line.
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Citations
44 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 real-time, on-line process data from a process control system within the process plant, wherein the collected on-line process data is representative of a normal operation of the process when the process is on-line and operating normally and wherein the collected on-line process data comprises a plurality of observations of a plurality of process variables and wherein the plurality of observations of a set of collected on-line process data comprises a first data space having a plurality of dimensions; and an analysis tool comprising a multivariate statistical analysis engine adapted to represent the normal operation of the process based on a set of collected real-time, on-line process data comprising a measure of the normal operation of the process when the process is on-line and operating normally within a second data space having fewer dimensions than the first data space, and wherein the analysis tool is adapted to represent a real-time on-line operation of the process using monitored on-line process data as an input to a multivariate representation of the normal operation of the process within the second data space, wherein the monitored on-line process data comprises a measure of a real-time operation of the process when the process is on-line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for monitoring a process in a process plant, the method comprising:
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collecting real-time, on-line data from a process control system within the process plant, wherein the data is representative of a normal operation of the process when the process is on-line and operating normally and wherein the collected on-line process data comprises a plurality of observations of a plurality of process variables and wherein the plurality of observations of a set of collected on-line process data comprises a first data space having a plurality of dimensions; performing a multivariate statistical analysis to represent the normal operation of the process based on a set of collected on-line process data comprising a measure of the normal operation of the process when the process is on-line and operating normally within a second data space having fewer dimensions than the first data space; and representing a real-time on-line operation of the process using monitored real-time, on-line process data as an input to a multivariate representation of the normal operation of the process within the second data space, wherein the monitored on-line process data comprises a measure of a real-time operation of the process when the process is on-line. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification