Title :
An introduction to sensor signal validation in redundant measurement systems
Author :
Ray, Asok ; Luck, Rogelio
Author_Institution :
Dept. of Mech. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Some of the key concepts of sensor redundancy management are discussed and illustrated by simple examples. The focus is on redundancy management in fault detection and isolation with the emphasis on the parity space. A model of a multiply redundant measurement system is presented. The generation of residuals is considered, and the concept of parity space is explained. Failure detection, including sequential testing, is then addressed.<>
Keywords :
detectors; failure analysis; measurement theory; redundancy; signal processing; failure detection; fault detection; fault isolation; multiply redundant measurement system; parity space; sensor signal validation; sequential testing; Aircraft navigation; Calibration; Chemical sensors; Current measurement; Fault detection; Information analysis; Redundancy; Sensor systems; Sequential analysis; Transducers;
Journal_Title :
Control Systems, IEEE
