Journal
IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
Volume 25, Issue 1, Pages 63-72Publisher
IEEE COMPUTER SOC
DOI: 10.1109/TPDS.2013.30
Keywords
Wireless sensor networks; structural health monitoring; cyber-physical systems
Funding
- US National Science Foundation (NSF) [CNS-0627126, CNS-1035773, CNS-1035748, CNS-0708460]
- Direct For Computer & Info Scie & Enginr [1035748] Funding Source: National Science Foundation
- Division Of Computer and Network Systems [1035773] Funding Source: National Science Foundation
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Our deteriorating civil infrastructure faces the critical challenge of long-term structural health monitoring for damage detection and localization. In contrast to existing research that often separates the designs of wireless sensor networks and structural engineering algorithms, this paper proposes a cyber-physical codesign approach to structural health monitoring based on wireless sensor networks. Our approach closely integrates 1) flexibility-based damage localization methods that allow a tradeoff between the number of sensors and the resolution of damage localization, and 2) an energy-efficient, multilevel computing architecture specifically designed to leverage the multiresolution feature of the flexibility-based approach. The proposed approach has been implemented on the Intel Imote2 platform. Experiments on a simulated truss structure and a real full-scale truss structure demonstrate the system's efficacy in damage localization and energy efficiency.
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