METHOD AND APPARATUS FOR ALARM MONITORING
First Claim
1. A computer-implemented method for alarm monitoring of a process operation, the method comprising:
- collecting sample data representing one or more parameters of a process;
determining a distribution type of the sample data;
obtaining an alarm monitoring strategy corresponding to the distribution type; and
monitoring the process using the alarm monitoring strategy.
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Abstract
A method for alarm monitoring abnormal conditions associated with a process operation includes collecting N sample data representing one or more parameters of a process, determining a distribution type of the sample data, obtaining an alarm monitoring strategy associated with the distribution type, and monitoring the process using the alarm monitoring strategy. The distribution type may be single-constant, multi-level discrete, normally distributed, continuous non-normally distributed, cyclical trend-up/down, and drifting away after a period maintenance. The alarm monitoring strategy includes a unilateral or bilateral control chart. The one-side control chart has either an upper control limit (UCL) of (100−p) or a lower control limit (LCL) of (p), and the two-sided control chart has a UCL of (100−p/2) and an LCL of (p/2), where p is a predetermined false alarm rate which determines the number N. The control limit may be a difference between two adjacent sample values of the sample data.
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Citations
20 Claims
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1. A computer-implemented method for alarm monitoring of a process operation, the method comprising:
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collecting sample data representing one or more parameters of a process; determining a distribution type of the sample data; obtaining an alarm monitoring strategy corresponding to the distribution type; and monitoring the process using the alarm monitoring strategy.
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2. The computer-implemented method of claim 2, wherein obtaining the alarm monitoring strategy comprises:
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determining a control limit of a control chart associated with the distribution type; and monitoring the production process using the control limit of the control chart. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for alarm monitoring of a process operation, the apparatus comprising:
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a sampling unit configured to obtain a number N of sample data representing one or more parameters in a production process; a determining unit configured to determine a distribution type of the sample data; an acquisition unit configured to acquire an alarm monitoring strategy for the distribution type; and a monitoring unit configured to monitor the production process using the alarm monitoring strategy. - View Dependent Claims (11, 12, 13, 14)
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15. A method for alarm monitoring abnormal conditions associated with a process operation, the method comprising:
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collecting at least N sample data representing one or more parameters of a process; determining a distribution type of the sample data; obtaining a control chart in response to the determined distribution type; and monitoring the process using the control chart, wherein N is a function of a predetermined false alarm rate p. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification