AR063876A1 - DEVICE AND PROCEDURE FOR DETECTION AND / OR DIAGNOSIS OF FAILURES IN SENSORS - Google Patents
DEVICE AND PROCEDURE FOR DETECTION AND / OR DIAGNOSIS OF FAILURES IN SENSORSInfo
- Publication number
- AR063876A1 AR063876A1 ARP070105159A AR063876A1 AR 063876 A1 AR063876 A1 AR 063876A1 AR P070105159 A ARP070105159 A AR P070105159A AR 063876 A1 AR063876 A1 AR 063876A1
- Authority
- AR
- Argentina
- Prior art keywords
- failures
- variables
- sensors
- diagnosis
- failure
- Prior art date
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- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
La presente se relaciona con un dispositivo y un procedimiento para la detección y/o diagnóstico de fallas en sensores utilizados para medir y controlar variables de un proceso, tanto para fallas únicas como fallas múltiples. La detección y/o diagnóstico se efectúan en base al cálculo de residuos entre los valores medidos y los valores calculados por una pluralidad de modelos lineales paralelos, construidos a partir de las correlaciones existentes entre las variables medidas por los sensores del proceso. Una falla en un modelo (por esto se entiende la obtención de un residuo anómalamente alto por comparación entre la estimación del modelo y la medición), aumenta la probabilidad de que alguno de los sensores encargados de medir las variables participantes en el mismo esté fallando. Cuando todos los modelos en los que una variable participa fallan o presentan una alta probabilidad de falla, la probabilidad de falla del sensor que mide esa variable es máxima. El dispositivo comprende medios de almacenamiento de datos; medios e pre-procesamiento para el filtrado de los datos; medios de generación y almacenamiento de múltiples modelos de comportamiento, medios de cálculo de residuo que calculan la diferencia entre el valor medido y el predicho de las variables; medios de análisis para determinar la necesidad de comunicar una situación, anómala; medios de comunicación que presentan un informe de la situación del proceso.This is related to a device and a procedure for the detection and / or diagnosis of failures in sensors used to measure and control variables of a process, both for single failures and multiple failures. The detection and / or diagnosis are made based on the calculation of residues between the measured values and the values calculated by a plurality of parallel linear models, constructed from the correlations existing between the variables measured by the process sensors. A failure in a model (this is to say obtaining an anomalously high residue by comparison between the estimation of the model and the measurement), increases the probability that some of the sensors responsible for measuring the variables participating in it are failing. When all the models in which a variable participates fail or have a high probability of failure, the probability of failure of the sensor that measures that variable is maximum. The device comprises data storage means; means and pre-processing for data filtering; means for generating and storing multiple behavioral models, means for calculating waste that calculate the difference between the measured and predicted value of the variables; means of analysis to determine the need to communicate a situation, anomaly; media that present a report on the status of the process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP070105159 AR063876A1 (en) | 2007-11-20 | 2007-11-20 | DEVICE AND PROCEDURE FOR DETECTION AND / OR DIAGNOSIS OF FAILURES IN SENSORS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ARP070105159 AR063876A1 (en) | 2007-11-20 | 2007-11-20 | DEVICE AND PROCEDURE FOR DETECTION AND / OR DIAGNOSIS OF FAILURES IN SENSORS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR063876A1 true AR063876A1 (en) | 2009-02-25 |
Family
ID=40385959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP070105159 AR063876A1 (en) | 2007-11-20 | 2007-11-20 | DEVICE AND PROCEDURE FOR DETECTION AND / OR DIAGNOSIS OF FAILURES IN SENSORS |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR063876A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2853972A2 (en) | 2013-09-30 | 2015-04-01 | YPF Tecnologia S.A. | Device and method for detection and/or diagnosis of faults in a process, equipment and sensors |
-
2007
- 2007-11-20 AR ARP070105159 patent/AR063876A1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2853972A2 (en) | 2013-09-30 | 2015-04-01 | YPF Tecnologia S.A. | Device and method for detection and/or diagnosis of faults in a process, equipment and sensors |
| EP2853972A3 (en) * | 2013-09-30 | 2015-12-30 | YPF Tecnologia S.A. | Device and method for detection and/or diagnosis of faults in a process, equipment and sensors |
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