A Probabilistic Model For Sensor Validation

by   Pablo H. Ibarguengoytia, et al.

The validation of data from sensors has become an important issue in the operation and control of modern industrial plants. One approach is to use knowledge based techniques to detect inconsistencies in measured data. This article presents a probabilistic model for the detection of such inconsistencies. Based on probability propagation, this method is able to find the existence of a possible fault among the set of sensors. That is, if an error exists, many sensors present an apparent fault due to the propagation from the sensor(s) with a real fault. So the fault detection mechanism can only tell if a sensor has a potential fault, but it can not tell if the fault is real or apparent. So the central problem is to develop a theory, and then an algorithm, for distinguishing real and apparent faults, given that one or more sensors can fail at the same time. This article then, presents an approach based on two levels: (i) probabilistic reasoning, to detect a potential fault, and (ii) constraint management, to distinguish the real fault from the apparent ones. The proposed approach is exemplified by applying it to a power plant model.


page 1

page 2

page 3

page 4


Any Time Probabilistic Reasoning for Sensor Validation

For many real time applications, it is important to validate the informa...

A Generalizable Model for Fault Detection in Offshore Wind Turbines Based on Deep Learning

This paper presents a new deep learning-based model for fault detection ...

A Probabilistic Machine Learning Approach to Detect Industrial Plant Faults

Fault detection in industrial plants is a hot research area as more and ...

Multivariate Industrial Time Series with Cyber-Attack Simulation: Fault Detection Using an LSTM-based Predictive Data Model

We adopted an approach based on an LSTM neural network to monitor and de...

Fault Matters: Sensor Data Fusion for Detection of Faults using Dempster-Shafer Theory of Evidence in IoT-Based Applications

Fault detection in sensor nodes is a pertinent issue that has been an im...

Automatic detection of faults in race walking from a smartphone camera: a comparison of an Olympic medalist and university athletes

Automatic fault detection is a major challenge in many sports. In race w...

Sensor Fault Detection and Isolation via Networked Estimation: Full-Rank Dynamical Systems

This paper considers the problem of simultaneous sensor fault detection,...

Please sign up or login with your details

Forgot password? Click here to reset