Smart Structures and Systems

  • 제5권2호
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  • Pages.119-137
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  • 2009
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Middleware services for structural health monitoring using smart sensors

  • Nagayama, T. (Department of Civil Engineering, University of Tokyo) ;
  • Spencer, B.F. Jr. (Department of Civil Engineering, University of Illinois at Urbana-Champaign 201 N. Goodwin Ave.) ;
  • Mechitov, K.A. (Department of Computer Science, University of Illinois at Urbana-Champaign 201 N. Goodwin Ave.) ;
  • Agha, G.A. (Department of Computer Science, University of Illinois at Urbana-Champaign 201 N. Goodwin Ave.)
  • 투고 : 2008.02.01
  • 심사 : 2008.11.12
  • 발행 : 2009.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Smart sensors densely distributed over structures can use their computational and wireless communication capabilities to provide rich information for structural health monitoring (SHM). Though smart sensor technology has seen substantial advances during recent years, implementation of smart sensors on full-scale structures has been limited. Hardware resources available on smart sensors restrict data acquisition capabilities; intrinsic to these wireless systems are packet loss, data synchronization errors, and relatively slow communication speeds. This paper addresses these issues under the hardware limitation by developing corresponding middleware services. The reliable communication service requires only a few acknowledgement packets to compensate for packet loss. The synchronized sensing service employs a resampling approach leaving the need for strict control of sensing timing. The data aggregation service makes use of application specific knowledge and distributed computing to suppress data transfer requirements. These middleware services are implemented on the Imote2 smart sensor platform, and their efficacy demonstrated experimentally.

키워드

과제정보

연구 과제 주관 기관 : National Science Foundation

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피인용 문헌

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