CA2234452A1 - An expert system for testing industrial processes and determining sensor status - Google Patents
An expert system for testing industrial processes and determining sensor statusInfo
- Publication number
- CA2234452A1 CA2234452A1 CA002234452A CA2234452A CA2234452A1 CA 2234452 A1 CA2234452 A1 CA 2234452A1 CA 002234452 A CA002234452 A CA 002234452A CA 2234452 A CA2234452 A CA 2234452A CA 2234452 A1 CA2234452 A1 CA 2234452A1
- Authority
- CA
- Canada
- Prior art keywords
- function
- difference
- sensor
- expert system
- industrial processes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/4184—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by fault tolerance, reliability of production system
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/34—Director, elements to supervisory
- G05B2219/34048—Fourier transformation, analysis, fft
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37325—Multisensor integration, fusion, redundant
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37326—Automatic configuration of multisensor, adaptive, active sensing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S706/00—Data processing: artificial intelligence
- Y10S706/902—Application using ai with detail of the ai system
- Y10S706/903—Control
- Y10S706/906—Process plant
Abstract
A method and system (110) for monitoring both an industrial process and a sensor (104). The method and system include determining a minimum number of sensor pairs needed to test the industrial process as well as the sensor (104) for evaluating the state of operation of both. After obtaining two signals associated with one physical variable, a difference function is obtained by determining the arithmetic difference between the pair of signals over time. A frequency domain transformation is made of the difference function to obtain Fourier modes describing a composite function. A residual function is obtained by subtracting the composite function from the difference function and the residual function (free of nonwhite noise) is analyzed by a statistical probability ratio test.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/541,602 | 1995-10-10 | ||
US08/541,602 US5761090A (en) | 1995-10-10 | 1995-10-10 | Expert system for testing industrial processes and determining sensor status |
PCT/US1996/016092 WO1997014105A1 (en) | 1995-10-10 | 1996-10-08 | An expert system for testing industrial processes and determining sensor status |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2234452A1 true CA2234452A1 (en) | 1997-04-17 |
CA2234452C CA2234452C (en) | 2004-02-24 |
Family
ID=24160272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002234452A Expired - Fee Related CA2234452C (en) | 1995-10-10 | 1996-10-08 | An expert system for testing industrial processes and determining sensor status |
Country Status (6)
Country | Link |
---|---|
US (1) | US5761090A (en) |
EP (1) | EP0855061B1 (en) |
AU (1) | AU707304B2 (en) |
CA (1) | CA2234452C (en) |
DE (1) | DE69631594D1 (en) |
WO (1) | WO1997014105A1 (en) |
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US8127060B2 (en) | 2009-05-29 | 2012-02-28 | Invensys Systems, Inc | Methods and apparatus for control configuration with control objects that are fieldbus protocol-aware |
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-
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- 1995-10-10 US US08/541,602 patent/US5761090A/en not_active Expired - Lifetime
-
1996
- 1996-10-08 DE DE69631594T patent/DE69631594D1/en not_active Expired - Lifetime
- 1996-10-08 EP EP96936263A patent/EP0855061B1/en not_active Expired - Lifetime
- 1996-10-08 CA CA002234452A patent/CA2234452C/en not_active Expired - Fee Related
- 1996-10-08 AU AU73955/96A patent/AU707304B2/en not_active Ceased
- 1996-10-08 WO PCT/US1996/016092 patent/WO1997014105A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0855061A1 (en) | 1998-07-29 |
AU707304B2 (en) | 1999-07-08 |
DE69631594D1 (en) | 2004-03-25 |
US5761090A (en) | 1998-06-02 |
AU7395596A (en) | 1997-04-30 |
EP0855061B1 (en) | 2004-02-18 |
CA2234452C (en) | 2004-02-24 |
WO1997014105A1 (en) | 1997-04-17 |
EP0855061A4 (en) | 1999-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |