NDLI: Distributed Online Simultaneous Fault Detection for Multiple Sensors

Content Provider	IEEE Xplore Digital Library
Author	Rajagopal, R. XuanLong Nguyen Ergen, S.C. Varaiya, P.
Copyright Year	2008
Description	Author affiliation: Univ. of California, Berkeley (Rajagopal, R.)
Abstract	Monitoring its health by detecting its failed sensors is essential to the reliable functioning of any sensor network. This paper presents a distributed, online, sequential algorithm for detecting multiple faults in a sensor network. The algorithm works by detecting change points in the correlation statistics of neighboring sensors, requiring only neighbors to exchange information. The algorithm provides guarantees on detection delay and false alarm probability. This appears to be the first work to offer such guarantees for a multiple sensor network. Based on the performance guarantees, we compute a tradeoff between sensor node density, detection delay and energy consumption. We also address synchronization, finite storage and data quantization. We validate our approach with some example applications.
Starting Page	133
Ending Page	144
File Size	557062
Page Count	12
File Format	PDF
ISBN	9780769531571
DOI	10.1109/IPSN.2008.41
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Change detection algorithms fault tolerance Delay effects fault detection Probability Electrical fault detection Time measurement Vehicles Fault diagnosis Condition monitoring Fault detection Working environment noise change point sequential hypothesis testing
Content Type	Text
Resource Type	Article

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