公开(公告)号：DE112004002682D2

公开(公告)日：2006-12-07

申请号：DE112004002682

申请日：2004-02-28

Applicant: ABB RESEARCH LTD

Inventor： MILANOVIC RAIKO ,  MERTE ROLF ,  GASCH ARMIN ,  LORITO FABRIZIO ,  MORONI ANDREA ,  BIANCHI CORRADO ,  VECCHIATO FRANCO ,  VOLONTERIO EUGENIO

IPC: G05B19/418

Abstract: The invention relates to an arrangement of devices, such as, measuring devices or actuators, which are associated with process technology, and uni-directional or bidirectional data exchange with a central point, such as a control center or display device. A transmitting/receiving device is arranged such that data can be exchanged with the central point. The transmitting/receiving device is also arranged such that data from the other devices can be retrieved or transmitted further. The other devices do not comprise a transmitting or receiving device for direct communication with the central point.

公开(公告)号：DE102004019222A1

公开(公告)日：2005-11-10

申请号：DE102004019222

申请日：2004-04-21

Applicant: ABB RESEARCH LTD

Inventor： MILANOVIC RAIKO ,  MERTE ROLF ,  GASCH ARMIN ,  LORITO FABRIZIO ,  MORONI ANDREA ,  VECCHIATO FRANCO ,  BIANCHI CORRADO ,  VOLONTERIO EUGENIO ,  KRIPPNER PETER ,  SCHOLZ WOLFGANG ,  RIEGLER PETER ,  ALTIOK EMRULLAH ,  BISKUP JUERGEN ,  DAAKE WILHELM

IPC: G01L7/00 ,  G01L7/08 ,  G01L13/02 ,  G01L27/00

Abstract: The invention relates to a device and a method for the status monitoring of a pressure measuring unit in an absolute or differential or relative pressure transducer, a pressure-sensitive element installed in the pressure measuring unit being impinged with at least one pressure generated by at least one membrane. During a defined diagnosis time interval, a testing element integrated in the pressure measuring unit is induced to undergo a change in volume, preferably by electrical activation. The pressure difference caused as a result in the pressure measuring unit is registered by a pressure-sensitive element. The curve registered during a diagnosis time interval is compared with a reference curve recorded with the pressure measuring unit intact. A fault indication is given if the deviations between the registered curve and the reference curve exceed predetermined tolerance values.

公开(公告)号：DE602005016310D1

公开(公告)日：2009-10-08

申请号：DE602005016310

申请日：2005-02-15

Applicant: ABB RESEARCH LTD

Inventor： ANDENNA ANDREA ,  MORONI ANDREA ,  INVERNIZZI GIOVANNI

IPC: G05B19/418 ,  G05B23/02

Abstract: A method and diagnostic device are disclosed which can receive process variable values (x(t)) of a process variable of a process medium of a process, and extract and record measurement statistics data from such process variable values, which are measured during a measuring phase. Training statistics data can be extracted and recorded from such process variable values, which are measured during a training phase. The measurement statistics data can be compared with training statistics data recorded before the measurement statistics data. The training statistics data can include a training empirical statistical distribution, which can be a distribution of a function of process variable values, which are measured during a training phase, or a distribution of a function of coefficients Xt(k), which are coefficients of a function of a transform of process variable values (x(t)), which are measured during a training phase.

公开(公告)号：AT441140T

公开(公告)日：2009-09-15

申请号：AT05706510

申请日：2005-02-15

Applicant: ABB RESEARCH LTD

Inventor： ANDENNA ANDREA ,  MORONI ANDREA ,  INVERNIZZI GIOVANNI

IPC: G05B19/418 ,  G05B23/02

Abstract: A method and diagnostic device are disclosed which can receive process variable values (x(t)) of a process variable of a process medium of a process, and extract and record measurement statistics data from such process variable values, which are measured during a measuring phase. Training statistics data can be extracted and recorded from such process variable values, which are measured during a training phase. The measurement statistics data can be compared with training statistics data recorded before the measurement statistics data. The training statistics data can include a training empirical statistical distribution, which can be a distribution of a function of process variable values, which are measured during a training phase, or a distribution of a function of coefficients Xt(k), which are coefficients of a function of a transform of process variable values (x(t)), which are measured during a training phase.

公开(公告)号：ES2331576T3

公开(公告)日：2010-01-08

申请号：ES05706510

申请日：2005-02-15

Applicant: ABB RESEARCH LTD

Inventor： ANDENNA ANDREA ,  MORONI ANDREA ,  INVERNIZZI GIOVANNI

IPC: G05B19/418 ,  G05B23/02

Abstract: Un dispositivo de diagnóstico (10) que comprende - un medio de recepción (100) para recibir valores de la variable de proceso (x(t)) de una variable de proceso de un medio de proceso (2) de un proceso, - un medio de procesamiento de mediciones (300) para extraer y registrar datos estadísticos de medición a partir de dichos valores de la variable de proceso, que se miden durante una fase de medición (300), - un medio de procesamiento de formación (200) para extraer y registrar datos estadísticos de formación a partir de dichos valores de la variable de proceso que se miden durante una fase de formación (200), para calcular una distribución estadística empírica de formación (250; 251) con lo que la distribución (250; 251) es una distribución de una función de valores de la variable de proceso (x(t)) que se miden durante una fase de formación (200) y para calcular una función de distribución analítica de formación (270; 271) que se aproxima a la distribución estadística empírica de formación (250) y que comprende - un medio de comparación (400) para comparar los datos estadísticos de medición con datos estadísticos de formación registrados antes que los datos estadísticos de medición, caracterizado por que los datos estadísticos de medición comprenden una distribución estadística empírica de medición (350), que es una distribución de una función de dichos valores de la variable de proceso (x(t)), que se miden durante una fase de medición (300), y por que los datos estadísticos de formación comprenden la función de distribución analítica de formación (270) y por que el medio de comparación (400) proporciona una indicación de fallo en caso de que el nivel de confianza (1/Chi2) obtenido a partir de un ensayo estadístico (450) de la consistencia de la distribución estadística empírica de medición (350) con la función de distribución analítica de formación (250) esté por debajo de un valor umbral prescriptible (K'').