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公开(公告)号：EP0906593B1
公开(公告)日：2003-07-30
申请号：EP97930046.4
申请日：1997-06-13
CPC分类号： G05B23/0254 , G05B23/0262
摘要： 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.
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公开(公告)号：EP0906593A1
公开(公告)日：1999-04-07
申请号：EP97930046.0
申请日：1997-06-13
CPC分类号： G05B23/0254 , G05B23/0262
摘要： 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.
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公开(公告)号：EP1055239B8
公开(公告)日：2006-06-07
申请号：EP99903131.3
申请日：1999-01-14
摘要： 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.
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公开(公告)号：EP1055239A1
公开(公告)日：2000-11-29
申请号：EP99903131.3
申请日：1999-01-14
IPC分类号： G21C7/00
摘要： 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.
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5.发明授权AN EXPERT SYSTEM FOR TESTING INDUSTRIAL PROCESSES AND DETERMINING SENSOR STATUS 失效用于测试工业过程和传感器专家系统用于确定状态
公开(公告)号：EP0855061B1
公开(公告)日：2004-02-18
申请号：EP96936263.1
申请日：1996-10-08
CPC分类号： G05B19/4184 , G05B2219/34048 , G05B2219/37325 , G05B2219/37326 , Y02P90/14 , Y10S706/906
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6.发明授权
公开(公告)号：EP0746855B1
公开(公告)日：1999-06-23
申请号：EP94918170.5
申请日：1994-05-27
CPC分类号： G21C17/00 , G05B9/03 , Y10S706/914
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公开(公告)号：EP1055239B1
公开(公告)日：2006-03-22
申请号：EP99903131.3
申请日：1999-01-14
摘要： 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.
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公开(公告)号：EP1031039A1
公开(公告)日：2000-08-30
申请号：EP98956419.0
申请日：1998-10-30
IPC分类号： G01R23/16
CPC分类号： G01R23/16
摘要： 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.
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9.发明公开AN EXPERT SYSTEM FOR TESTING INDUSTRIAL PROCESSES AND DETERMINING SENSOR STATUS 失效用于测试工业过程和传感器专家系统用于确定状态
公开(公告)号：EP0855061A1
公开(公告)日：1998-07-29
申请号：EP96936263.0
申请日：1996-10-08
IPC分类号： G05B19
CPC分类号： G05B19/4184 , G05B2219/34048 , G05B2219/37325 , G05B2219/37326 , Y02P90/14 , Y10S706/906
摘要： 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.
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10.发明公开
公开(公告)号：EP0746855A1
公开(公告)日：1996-12-11
申请号：EP94918170.0
申请日：1994-05-27
CPC分类号： G21C17/00 , G05B9/03 , Y10S706/914
摘要： 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 analysed by a statistical probability ratio test.
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