Optimal Sensor Location Design for Reliable Fault Detection in Presence of False Alarms

Sensors

Fan Yang¹  Deyun Xiao¹ 

[1] Department of Automation, Tsinghua University, Beijing 100084, China; E-Mail:

关键词: fault detection;    directed graph;    reliability;    false alarm;    missed alarm;   

DOI  :  10.3390/s91108579

来源: mdpi

【 摘 要 】

To improve fault detection reliability, sensor location should be designed according to an optimization criterion with constraints imposed by issues of detectability and identifiability. Reliability requires the minimization of undetectability and false alarm probability due to random factors on sensor readings, which is not only related with sensor readings but also affected by fault propagation. This paper introduces the reliability criteria expression based on the missed/false alarm probability of each sensor and system topology or connectivity derived from the directed graph. The algorithm for the optimization problem is presented as a heuristic procedure. Finally, a boiler system is illustrated using the proposed method.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.