Time synchronization of a wired sensor network for structural health monitoring

Ken Ichiro Ishikawa, Akira Mita

研究成果: Article査読

9 被引用数 (Scopus)

抄録

This paper introduces a time synchronization system for wired smart sensor networks to be applied to the structural health monitoring of gigantic structures. The jitter of sensor nodes in the wired network depends on the wire length between the origin and the destination of the time synchronization signals. The proposed system can theoretically achieve the accuracy to limit the jitter of sensors within 34ns by adjusting the timing depending on the wire length, and experimentally showed the jitter of 190m separation to be within 25ns. The proposed system uses local area network (LAN) cables and does not require additional cabling for synchronization. Thus the proposed synchronization system can be embedded in the sensor network with minimal cost.

本文言語English
論文番号015016
ジャーナルSmart Materials and Structures
17
1
DOI
出版ステータスPublished - 2008 2 1

ASJC Scopus subject areas

  • 信号処理
  • 土木構造工学
  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 電子工学および電気工学

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