Title:
APPARATUS AND METHOD FOR IDENTIFYING DEFECTIVE VALVES USING WAVELET DECOMPOSITION
Document Type and Number:
WIPO Patent Application WO2005052707
Kind Code:
A3
Abstract:
A method and apparatus are provided for identifying a defective valve. The method and the apparatus 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 and apparatus 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 and the apparatus select one of the plurality of resolution levels using at least one of the indexes. The method and the apparatus determine an overall probability of a valve defect using at least one index associated with the selected resolution level.
Inventors:
ZHAN CHARLES Q (US)
LU JOSEPH Z (US)
LU JOSEPH Z (US)
Application Number:
PCT/US2004/038765
Publication Date:
July 28, 2005
Filing Date:
November 18, 2004
Export Citation:
Assignee:
HONEYWELL INT INC (US)
ZHAN CHARLES Q (US)
LU JOSEPH Z (US)
ZHAN CHARLES Q (US)
LU JOSEPH Z (US)
International Classes:
G05B23/02; (IPC1-7): G05B23/02
Foreign References:
| US5616824A | 1997-04-01 | |||
| US20020040284A1 | 2002-04-04 |
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