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Title: Processing data base information having nonwhite noise

Patent ·
OSTI ID:869855
 [1];  [2]
  1. Bolingbrook, IL
  2. Park Ridge, IL
+ Show Author Affiliations

A method and system for processing a set of data from an industrial process and/or a sensor. The method and system can include processing data from either real or calculated data related to an industrial process variable. One of the data sets can be an artificial signal data set generated by an autoregressive moving average technique. After obtaining two data sets associated with one physical variable, a difference function data set is obtained by determining the arithmetic difference between the two pairs of data sets over time. A frequency domain transformation is made of the difference function data set to obtain Fourier modes describing a composite function data set. A residual function data set is obtained by subtracting the composite function data set from the difference function data set and the residual function data set (free of nonwhite noise) is analyzed by a statistical probability ratio test to provide a validated data base.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
DOE Contract Number:
W-31109-ENG-38
Assignee:
ARCH Development Corporation (Chicago, IL)
Patent Number(s):
US 5410492
OSTI ID:
869855
Country of Publication:
United States
Language:
English

References (16)

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A Methodology for the Design and Analysis of a Sensor Failure Detection Network journal January 1993
An Integrated Signal Validation System for Nuclear Power Plants journal December 1990
Fault detection method using power supply spectrum analysis journal January 1990
Microcomputer-based fault detection using redundant sensors journal January 1988
Process hypercube comparison for signal validation journal April 1991
Algorithm-based fault detection for signal processing applications journal January 1990
4. Knowledge-based systems in process fault diagnosis journal April 1989
Early fault detection and diagnosis in Finnish nuclear power plants journal January 1988
Power Signal Validation for Taiwan Research Reactor journal January 1989
Instrument Fault Detection in a Pressurized Water Reactor Pressurizer journal January 1982
Validation of smart sensor technologies for instrument calibration reduction in nuclear power plants report January 1993
Construction and evaluation of fault detection network for signal validation journal January 1992
Signal validation techniques and power plant applications journal January 1988
An Expert System for Sensor Data Validation and Malfunction Detection book January 1988
On-Line Test of Signal Validation Software on the LOBI-MOD2 Facility in Ispra, Italy journal January 1992

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processing
data
base
information
nonwhite
noise
method
set
industrial
process
sensor
calculated
related
variable
sets
artificial
signal
generated
autoregressive
moving
average
technique
obtaining
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frequency
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obtain
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residual
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probability
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residual function
probability ratio
process variable
composite function
data sets
artificial signal
processing data
average technique
moving average
statistical probability
obtain fourier
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arithmetic difference
physical variable
regressive moving
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