Local Sensor Validation
- 1 June 1989
- journal article
- research article
- Published by SAGE Publications in Measurement and Control
- Vol. 22 (5) , 132-141
- https://doi.org/10.1177/002029408902200502
Abstract
Current approaches to plant fault detection require an overall process model. This paper argues that a hierarchical scheme is more efficient in which the lowest level concentrates on validating the signals transmitted by individual sensors. Signals are described in terms of standard time-series models. A fault is defined by the signal's deviation from its expected behaviour and various signal processing techniques are described which detect these aberrations.Keywords
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