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http://hdl.handle.net/10397/105667
Title: | Dependable structural health monitoring using wireless sensor networks | Authors: | Bhuiyan, MZA Wang, G Wu, J Cao, J Liu, X Wang, T |
Issue Date: | Jul-2017 | Source: | IEEE transactions on dependable and secure computing, July-Aug. 2017, v. 14, no. 4, p. 363-376 | Abstract: | As an alternative to current wired-based networks, wireless sensor networks (WSNs) are becoming an increasingly compelling platform for engineering structural health monitoring (SHM) due to relatively low-cost, easy installation, and so forth. However, there is still an unaddressed challenge: the application-specific dependability in terms of sensor fault detection and tolerance. The dependability is also affected by a reduction on the quality of monitoring when mitigating WSN constrains (e.g., limited energy, narrow bandwidth). We address these by designing a dependable distributed WSN framework for SHM (called DependSHM) and then examining its ability to cope with sensor faults and constraints. We find evidence that faulty sensors can corrupt results of a health event (e.g., damage) in a structural system without being detected. More specifically, we bring attention to an undiscovered yet interesting fact, i.e., the real measured signals introduced by one or more faulty sensors may cause an undamaged location to be identified as damaged (false positive) or a damaged location as undamaged (false negative) diagnosis. This can be caused by faults in sensor bonding, precision degradation, amplification gain, bias, drift, noise, and so forth. In DependSHM, we present a distributed automated algorithm to detect such types of faults, and we offer an online signal reconstruction algorithm to recover from the wrong diagnosis. Through comprehensive simulations and a WSN prototype system implementation, we evaluate the effectiveness of DependSHM. | Keywords: | Dependability Energy-efficiency Fault detection Fault-tolerance Structural health monitoring Wireless sensor networks |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE transactions on dependable and secure computing | ISSN: | 1545-5971 | EISSN: | 1941-0018 | DOI: | 10.1109/TDSC.2015.2469655 | Rights: | ©2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The following publication M. Z. A. Bhuiyan, G. Wang, J. Wu, J. Cao, X. Liu and T. Wang, "Dependable Structural Health Monitoring Using Wireless Sensor Networks," in IEEE Transactions on Dependable and Secure Computing, vol. 14, no. 4, pp. 363-376, 1 July-Aug. 2017 is available at https://doi.org/10.1109/TDSC.2015.2469655. |
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Cao_Dependable_Structural_Health.pdf | Preprint version | 1.82 MB | Adobe PDF | View/Open |
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