Structural Engineering and Mechanics

Techno-Press (테크노프레스)
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Recovering missing data transmitted from a wireless sensor node for vibration-based bridge health monitoring

  • Kim, C.W. (Department of Civil & Earth Resources Engineering, Graduate School of Engineering, Kyoto University) ;
  • Kawatani, M. (Department of Civil Engineering, Graduate School of Engineering, Kobe University) ;
  • Ozaki, R. (Department of Civil Engineering, Graduate School of Engineering, Kobe University) ;
  • Makihata, N. (JIP Techno Science Corporation)
  • Received : 2010.04.27
  • Accepted : 2011.01.15
  • Published : 2011.05.25
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Abstract

This paper presents recovering of missing vibration data of a bridge transmitted from wireless sensors. Kalman filter algorithm is adopted to reconstruct the missing data analytically. Validity of the analytical approach is examined through a field experiment of a bridge. Observations demonstrate that, even a part of recovered acceleration responses is underestimated in comparison with those responses taken from cabled sensors, dominant frequencies taken from the reconstructed data are comparable with those from cabled sensors.

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References

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