公开(公告)号：AU745828B2

公开(公告)日：2002-04-11

申请号：AU1294699

申请日：1998-10-30

Applicant: ARCH DEV CORP

Inventor： GROSS KENNETH C ,  WEGERICH STEPHAN ,  CRISS-PUSZKIEWICZ CYNTHIA ,  WILKS ALAN D

IPC: G01N21/35 ,  G01N21/64 ,  G01R23/16

Abstract: A method and system for monitoring at least one of a system, a process and a data source. A method and system have been developed for carrying out surveillance, testing and modification of an ongoing process or other source of data, such as a spectroscopic examination. A signal from the system under surveillance is collected and compared with a reference signal, a frequency domain transformation carried out for the system signal and reference signal, a frequency domain difference function established. The process is then repeated until a full range of data is accumulated over the time domain and a Sequential Probability Ratio Test ("SPRT") methodology applied to determine a three-dimensional surface plot characteristic of the operating state of the system under surveillance.

公开(公告)号：CA2309271A1

公开(公告)日：1999-05-27

申请号：CA2309271

申请日：1998-10-30

Applicant: ARCH DEV CORP

Inventor： WEGERICH STEPHAN ,  GROSS KENNETH C ,  CRISS-PUSZKIEWICZ CYNTHIA ,  WILKS ALAN D

IPC: G01N21/35 ,  G01N21/64 ,  G01R23/16

Abstract: The invention is a method and system for monitoring at least one of a system, a process and a data source. A method and system have been developed for carrying out surveillance, testing and modification of an ongoing process or other source of data, such as a spectroscopic examination. A signal from the system under surveillance is collected and compared with a learned states (40), a frequency domain transformation carried out for the system signal and reference signal, and a frequency domain difference function is established. The process is then repeated until a full range of data is accumulated over the time domain and an SPRT methodology (50) is applied to determine a threedimensional surface plot (60) characteristic of the operating state of the system under surveillance.

公开(公告)号：CA2234452A1

公开(公告)日：1997-04-17

申请号：CA2234452

申请日：1996-10-08

Applicant: ARCH DEV CORP

Inventor： SINGER RALPH M ,  GROSS KENNETH C

IPC: G05B19/418 ,  G06F17/14 ,  G06F15/18

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.

公开(公告)号：CA2318093A1

公开(公告)日：1999-07-22

申请号：CA2318093

申请日：1999-01-14

Applicant: ARCH DEV CORP

Inventor： GROSS KENNETH C ,  JARMAN KRISTIN K ,  WEGERICH STEPHAN W

IPC: G05B23/02 ,  G21C17/00 ,  G01D21/00 ,  G01D1/00

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：AU1294699A

公开(公告)日：1999-06-07

申请号：AU1294699

申请日：1998-10-30

Applicant: ARCH DEV CORP

Inventor： GROSS KENNETH C ,  WEGERICH STEPHAN ,  CRISS-PUSZKIEWICZ CYNTHIA ,  WILKS ALAN D

IPC: G01N21/35 ,  G01N21/64 ,  G01R23/16

Abstract: A method and system for monitoring at least one of a system, a process and a data source. A method and system have been developed for carrying out surveillance, testing and modification of an ongoing process or other source of data, such as a spectroscopic examination. A signal from the system under surveillance is collected and compared with a reference signal, a frequency domain transformation carried out for the system signal and reference signal, a frequency domain difference function established. The process is then repeated until a full range of data is accumulated over the time domain and a Sequential Probability Ratio Test ("SPRT") methodology applied to determine a three-dimensional surface plot characteristic of the operating state of the system under surveillance.

公开(公告)号：AU7011596A

公开(公告)日：1997-03-19

申请号：AU7011596

申请日：1996-08-30

Applicant: ARCH DEV CORP

Inventor： VILIM RICHARD B ,  GROSS KENNETH C ,  WEGERICH STEPHAN W

IPC: G05B23/02 ,  G06N3/08 ,  G21D3/00 ,  G06F15/18 ,  G01M19/00

Abstract: A method and system for performing surveillance of transient signals of an industrial device to ascertain the operating state. The method and system involves the steps of reading into a memory training data, determining neural network weighting values until achieving target outputs close to the neural network output. If the target outputs are inadequate, wavelet parameters are determined to yield neural network outputs close to the desired set of target outputs and then providing signals characteristic of an industrial process and comparing the neural network output to the industrial process signals to evaluate the operating state of the industrial process.

公开(公告)号：CA2309271C

公开(公告)日：2006-07-11

申请号：CA2309271

申请日：1998-10-30

Applicant: ARCH DEV CORP

Inventor： CRISS-PUSZKIEWICZ CYNTHIA ,  WILKS ALAN D ,  GROSS KENNETH C ,  WEGERICH STEPHAN

IPC: G01R23/16 ,  G01D3/028 ,  G01N21/35 ,  G01N21/64 ,  G01N37/00 ,  G06F17/18 ,  G08B23/00

Abstract: The invention is a method and system for monitoring at least one of a system, a process and a data source. A method and system have been developed for carrying out surveillance, testing and modification of an ongoing process or other source of data, such as a spectroscopic examination. A signal from the system under surveillance is collected and compared with a learned states (40), a frequency domain transformation carried out for the system signal and reference signal, and a frequency domain difference function is established. The process is then repeated until a full range of data is accumulated over the time domain and an SPRT methodology (50) is applied to determine a three-dimensional surface plot (60) characteristic of the operating state of the system under surveillance.

公开(公告)号：DE69631594D1

公开(公告)日：2004-03-25

申请号：DE69631594

申请日：1996-10-08

Applicant: ARCH DEV CORP

Inventor： GROSS KENNETH C ,  SINGER RALPH M

IPC: G05B19/418 ,  G06F17/14 ,  G05B9/03 ,  G05B23/02

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：CA2234452C

公开(公告)日：2004-02-24

申请号：CA2234452

申请日：1996-10-08

Applicant: ARCH DEV CORP

Inventor： SINGER RALPH M ,  GROSS KENNETH C

IPC: G05B19/418 ,  G06F17/14 ,  G06F15/18

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 we ll 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.

公开(公告)号：AU4431999A

公开(公告)日：1999-12-30

申请号：AU4431999

申请日：1999-06-09

Applicant: ARCH DEV CORP

Inventor： GROSS KENNETH C ,  SINGER RALPH M ,  ALSTINE ROLLIN G VAN ,  WEGERICH STEPHAN W ,  YUE YONG

IPC: G21D3/04 ,  G06F15/18

Abstract: A method and system for monitoring a process and determining its condition. Initial data is sensed, a first set of virtual data is produced by applying a system state analyzation to the initial data, a second set of virtual data is produced by applying a neural network analyzation to the initial data and a parity space analyzation is applied to the first and second set of virtual data and also to the initial data to provide a parity space decision about the condition of the process. A logic test can further be applied to produce a further system decision about the state of the process.