NDLI: A multi-scale strategy in wireless sensor networks for structural health monitoring

Content Provider	IEEE Xplore Digital Library
Author	Xuefeng Liu Jiannong Cao Youlin Xu Hejun Wu Yang Liu
Copyright Year	2009
Description	Author affiliation: Department of Computing, the Hong Kong Polytechnic University, Hong Kong, China (Xuefeng Liu; Jiannong Cao; Hejun Wu; Yang Liu) \|\| Department of Civil and Structural Engineering, the Hong Kong Polytechnic University, Hong Kong, China (Youlin Xu)
Abstract	Wireless sensor network (WSN) has been considered to be the next generation paradigm of structural health monitoring (SHM) systems due to its low cost, high scalability and flexibility. However, some inherent limitations of WSN such as low-bandwidth wireless communication, limited resources on wireless sensor nodes, must be addressed to meet the generally high requirements of SHM. Distributed in-network processing has been widely accepted as a solution to this problem. However, the drawbacks of existing distributed algorithms, such as the low sensitivity, the dependency on accurate structural model, the incapability of handling various environmental conditions, et al., greatly constrained their practical applications. In this paper, we propose a multi-scale strategy in WSNs for SHM applications. The approach, called the ACF-CCF, utilizes the autocorrelation function of individual sensor node to detect the existence of damage and the cross-correlation function of designated node pairs to obtain damage location. Through simulation and laboratory test, the effectiveness of the proposed approach is demonstrated. Compared with existing distributed SHM algorithms, the method is energy efficient, model free and is robust to various environmental conditions.
Starting Page	361
Ending Page	366
File Size	540803
Page Count	6
File Format	PDF
ISBN	9781424435173
DOI	10.1109/ISSNIP.2009.5416752
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-07
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Wireless sensor networks Costs Scalability Laboratories Autocorrelation Distributed algorithms Monitoring Next generation networking Testing
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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