Apparatus and method for identifying possible defect indicators for a valve
First Claim
1. A method, comprising:
- identifying one or more operating characteristics associated with a valve;
identifying one or more indicators of a possible defect in the valve at a plurality of resolution levels using at least one of the one or more operating characteristics;
generating a plurality of indexes associated with the resolution levels, the indexes based on the one or more indicators and each identifying a likelihood of a valve defect;
selecting one of the plurality of resolution levels using at least one of the indexes; and
determining an overall probability of a valve defect using at least one of the indexes that is associated with the selected resolution level.
2 Assignments
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Accused Products
Abstract
A method, apparatus, and computer program are provided for identifying a defective valve. The method, apparatus, and computer program identify one or more indicators of a possible defect in the valve at a plurality of resolution levels. The one or more indicators are identified using at least one of one or more operating characteristics associated with the valve. The method, apparatus, and computer program generate a plurality of indexes associated with the resolution levels, where the indexes are based on the one or more indicators and identify a likelihood of a valve defect. The method, apparatus, and computer program select one of the plurality of resolution levels using at least one of the indexes. The method, apparatus, and computer program determine an overall probability of a valve defect using at least one index associated with the selected resolution level.
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Citations
24 Claims
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1. A method, comprising:
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identifying one or more operating characteristics associated with a valve;
identifying one or more indicators of a possible defect in the valve at a plurality of resolution levels using at least one of the one or more operating characteristics;
generating a plurality of indexes associated with the resolution levels, the indexes based on the one or more indicators and each identifying a likelihood of a valve defect;
selecting one of the plurality of resolution levels using at least one of the indexes; and
determining an overall probability of a valve defect using at least one of the indexes that is associated with the selected resolution level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus, comprising:
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a memory operable to store one or more operating characteristics associated with a valve; and
one or more processors collectively operable to;
identify one or more indicators of a possible defect in the valve at a plurality of resolution levels using at least one of the operating characteristics;
generate a plurality of indexes associated with the resolution levels, the indexes based on the one or more indicators and each identifying a likelihood of a valve defect;
select one of the plurality of resolution levels using at least one of the indexes; and
determine an overall probability of a valve defect using at least one of the indexes that is associated with the selected resolution level. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A computer program embodied on a computer readable medium and operable to be executed by a processor, the computer program comprising computer readable program code for:
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identifying one or more indicators of a possible defect in a valve at a plurality of resolution levels using at least one of one or more operating characteristics associated with the valve;
generating a plurality of indexes associated with the resolution levels, the indexes based on the one or more indicators and each identifying a likelihood of a valve defect;
selecting one of the plurality of resolution levels using at least one of the indexes; and
determining an overall probability of a valve defect using at least one of the indexes that is associated with the selected resolution level. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A system, comprising:
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a valve;
a measuring device operable to generate measurements of a process variable associated with operation of the valve;
a controller operable to generate output values for adjusting the valve based on the process variable measurements; and
a defect detector operable to;
identify one or more indicators of a possible defect in the valve at a plurality of resolution levels using at least one of the process variable measurements and the output values;
generate a plurality of indexes associated with the resolution levels, the indexes based on the one or more indicators and each identifying a likelihood of a valve defect;
select one of the plurality of resolution levels using at least one of the indexes; and
determine an overall probability of a valve defect using at least one of the indexes that is associated with the selected resolution level. - View Dependent Claims (23)
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24. A method, comprising:
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identifying one or more operating characteristics associated with a valve;
identifying one or more indicators of a possible defect in the valve using at least one of the one or more operating characteristics;
identifying one or more stiction patterns using the one or more indicators;
generating one or more indexes associated with one or more of the stiction patterns and each identifying a likelihood of a valve defect; and
determining an overall probability of a valve defect using at least one of the one or more indexes.
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Specification