-
公开(公告)号：AU2322599A
公开(公告)日：1999-08-02
申请号：AU2322599
申请日：1999-01-14
Applicant: ARCH DEV CORP
Inventor： WEGERICH STEPHAN W , JARMAN KRISTIN K , GROSS KENNETH C
Abstract: A method and apparatus for monitoring a source of data for determining an operating state of a working system. The method includes determining a sensor (or source of data) arrangement associated with monitoring the source of data for a system, activating a method for performing a sequential probability ratio test if the data source includes a single data (sensor) source, activating a second method for performing a regression sequential possibility ratio testing procedure if the arrangement includes a pair of sensors (data sources) with signals which are linearly or non-linearly related; activating a third method for performing a bounded angle ratio test procedure if the sensor arrangement includes multiple sensors and utilizing at least one of the first, second and third methods to accumulate sensor signals and determining the operating state of the system.
-
公开(公告)号：ES2257849T3
公开(公告)日：2006-08-01
申请号：ES99903131
申请日：1999-01-14
Applicant: ARCH DEV CORP
Inventor： WEGERICH STEPHAN W , JARMAN KRISTIN K , GROSS KENNETH C
Abstract: Un procedimiento para monitorizar una fuente de datos de sensores para determinar una condición operativa de un sistema monitorizado seleccionado, que incluye las etapas siguientes: realizar una fase de aprendizaje aportando datos de referencia característicos de una condición de operación normal de un sistema de referencia y recoger datos seleccionados de dicha fuente de datos de sensores y que es característica de una condición operativa de un sistema seleccionado, el procedimiento está caracterizado por las etapas de realizar un procedimiento de prueba de relación de ángulos acotados (BART) sobre dichos datos de referencia y dichos datos seleccionados en el que el procedimiento BART comprende la fase de aprendizaje y una fase de monitorización y en que la fase de aprendizaje incluye (a) adquirir una matriz de datos que contiene muestras de datos de una fuente de datos de sensores monitorizada en la que la matriz de datos es representativa de la operación normal del sistema y los parámetros BART se seleccionan para la fuente de datos de sensores, (b) determinar la altura del dominio de similitud para cada una de las fuentes de datos de sensores usando parámetros BART y (c) seleccionar un subconjunto de la matriz de datos para crear una matriz modelo H usada en los cálculos de estimación BART, y la fase de monitorización incluye (1) adquirir un vector de muestra en cada etapa temporal que contiene una lectura de sensor de la fuente de datos de sensores. (2) calcular un ángulo de similitud entre el vector de muestra y cada vector de muestra de la fase de aprendizaje almacenada en la matriz H, (3) calcular una estimación del vector de muestra de entrada Y usando los cálculos de la estimación BART, (4) determinar una diferencia entre la estimación y valores de datos reales de sensores y (5) introducir la diferencia en una prueba secuencial de relación de probabilidades para el análisis de alarmas de fallos; y (6) generar una indicación al determinar que existe una desviación dedichos datos seleccionados para dicho sistema monitorizado seleccionado con respecto a dichos datos de referencia.
-
公开(公告)号：AT321340T
公开(公告)日：2006-04-15
申请号：AT99903131
申请日：1999-01-14
Applicant: ARCH DEV CORP
Inventor： WEGERICH STEPHAN W , JARMAN KRISTIN K , GROSS KENNETH C
Abstract: A method and apparatus for monitoring a source of data for determining an operating state of a working system. The method includes determining a sensor (or source of data) arrangement associated with monitoring the source of data for a system, activating a method for performing a sequential probability ratio test if the data source includes a single data (sensor) source, activating a second method for performing a regression sequential possibility ratio testing procedure if the arrangement includes a pair of sensors (data sources) with signals which are linearly or non-linearly related; activating a third method for performing a bounded angle ratio test procedure if the sensor arrangement includes multiple sensors and utilizing at least one of the first, second and third methods to accumulate sensor signals and determining the operating state of the system.
-
公开(公告)号：CA2318093C
公开(公告)日：2004-11-23
申请号：CA2318093
申请日：1999-01-14
Applicant: ARCH DEV CORP
Inventor： GROSS KENNETH C , JARMAN KRISTIN K , WEGERICH STEPHAN W
Abstract: A method and apparatus for monitoring a source of data for determining an operating state of a working system. The method includes determining a sensor (or source of data) arrangement associated with monitoring the source of data for a system, activating a method for performing a sequential probability ratio test if the data source includes a single data (sensor) source, activating a second method for performing a regression sequential possibility ratio testing procedure if the arrangement includes a pair of sensors (data sources) with signals which are linearly of non-linearly related; activating a third method for performing a bounded angle ratio test procedure if the sensor arrangement includes multiple sensors and utilizing at least one of the first, second and third methods to accumulate sensor signals and determining the operating state of the system.
-
公开(公告)号：AU8510198A
公开(公告)日：1999-02-16
申请号：AU8510198
申请日：1998-07-23
Applicant: ARCH DEV CORP
Inventor： WEGERICH STEPHAN W , JARMAN KRISTIN K , GROSS KENNETH C
-
Patent Agency Ranking
公开(公告)号：AU6960994A
公开(公告)日：1994-12-20
申请号：AU6960994
申请日：1994-05-27
Applicant: ARCH DEV CORP
Inventor： GROSS KENNETH C , HOYER KRISTIN K , HUMENIK KEITH E
Abstract: A method and system for monitoring an industrial process and a sensor. The method and system include generating a first and second signal characteristic of an industrial process variable. One of the signals can be an artificial signal generated by an auto regressive moving average technique. After obtaining two signals associated with one physical variable, a difference function is obtained by determining the arithmetic difference between the two pairs 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.
-
公开(公告)号：ES2205244T3
公开(公告)日：2004-05-01
申请号：ES97930046
申请日：1997-06-13
Applicant: ARCH DEV CORP
Inventor： GROSS KENNETH C , WEGERICH STEPHAN , SINGER RALPH M , MOTT JACK
Abstract: A system and method for monitoring an industrial process and/or industrial data source. The system includes generating time varying data from industrial data sources, processing the data to obtain time correlation of the data, determining the range of data, determining learned states of normal operation and using these states to generate expected values, comparing the expected values to current actual values to identify a current state of the process closest to a learned, normal state; generating a set of modeled data, and processing the modeled data to identify a data pattern and generating an alarm upon detecting a deviation from normalcy.
-
公开(公告)号：CA2257881C
公开(公告)日：2004-02-10
申请号：CA2257881
申请日：1997-06-13
Applicant: ARCH DEV CORP
Inventor： SINGER RALPH M , MOTT JACK , WEGERICH STEPHAN , GROSS KENNETH C
Abstract: A system (10) and method for monitoring an industrial process and/or industrial data source (10). The system (10) includes a time correlation module (20), a training module (30), a system state estimation module (40) and a pattern recognition module (50). The system (10) generating time varying data sources, processing the data to obtain time correlation of the data (20), determining the range of data, determining learned states of normal operation (30) and using these states to generate expected values to identify a current state of the process closest to a learned, normal state (40); generating a set of modeled data, and processing the modeled data to identify a data pattern and generating an alarm (50) upon detecting a deviation from normalcy.
-
公开(公告)号：AU707304B2
公开(公告)日：1999-07-08
申请号：AU7395596
申请日：1996-10-08
Applicant: ARCH DEV CORP
Inventor： GROSS KENNETH C , SINGER RALPH M
IPC: G05B19/418 , G06F17/14
Abstract: A method and system for monitoring both an industrial process and a sensor. The method and system include determining a minimum number of sensor pairs needed to test the industrial process as well as the sensor for evaluating the state of operation of both. The technique further includes generating a first and second signal characteristic of an industrial process variable. 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.
-
公开(公告)号：AU3396797A
公开(公告)日：1998-01-07
申请号：AU3396797
申请日：1997-06-13
Applicant: ARCH DEV CORP
Inventor： GROSS KENNETH C , WEGERICH STEPHAN , SINGER RALPH M , MOTT JACK
Abstract: A system and method for monitoring an industrial process and/or industrial data source. The system includes generating time varying data from industrial data sources, processing the data to obtain time correlation of the data, determining the range of data, determining learned states of normal operation and using these states to generate expected values, comparing the expected values to current actual values to identify a current state of the process closest to a learned, normal state; generating a set of modeled data, and processing the modeled data to identify a data pattern and generating an alarm upon detecting a deviation from normalcy.
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.023 seconds)
