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Cyber-Physical Codesign of Distributed Structural Health Monitoring with Wireless Sensor Networks

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6 Author(s)
Hackmann, G. ; Dept. of Comput. Sci. & Eng., Washington Univ. in St. Louis, St. Louis, MO, USA ; Weijun Guo ; Guirong Yan ; Zhuoxiong Sun
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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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Parallel and Distributed Systems, IEEE Transactions on  (Volume:25 ,  Issue: 1 )