Apparatus and methods for detecting system faults using...

Details Apparatus and methods for detecting system faults using... Apparatus and methods for detecting system faults using...

2007-05-08

2007-05-08

Barlow, Jr., John E. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C702S183000

Reexamination Certificate

active

11210486

ABSTRACT:
An apparatus for detecting faults in a system monitored by a plurality of sensors is provided. The apparatus includes a hidden process driver unit that generates a hidden process driver based upon sensor values received from a group of correlated sensors selected from among the plurality of sensors. The apparatus also includes a sensor estimating unit that generates sensor estimates for each of the plurality of sensors based upon the hidden process driver and a known process driver provided by an uncorrelated sensor. The apparatus further includes a fault determining unit that indicates a fault when a residual based upon a difference between a sensor value supplied by one of the plurality of sensors and a corresponding one of the sensor estimates lies outside an acceptable range of residual values.

REFERENCES:
patent: 5335291 (1994-08-01), Kramer et al.
patent: 6014598 (2000-01-01), Duyar et al.
patent: 6393373 (2002-05-01), Duyar et al.
patent: 6594620 (2003-07-01), Qin et al.
patent: 6687585 (2004-02-01), Rizzoni et al.
patent: 6766230 (2004-07-01), Rizzoni et al.
patent: 2002/0152056 (2002-10-01), Herzog et al.
patent: 2002/0183971 (2002-12-01), Wegerich et al.

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