Distributed sensing for high quality structural health monitoring using wireless sensor networks

Xuefeng Liu, Jiannong Cao, Wen Zhan Song, Shaojie Tang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

18 Citations (Scopus)

Abstract

In recent years, using wireless sensor networks (WSNs) for structural health monitoring (SHM) has attracted increasing attention. Traditional centralized SHM algorithms developed by civil engineers can achieve the highest damage detection quality since they have the raw data from all the sensor nodes. However, directly implementing these algorithms in a typical WSN is impractical considering the large amount of data transmissions and extensive computations required. Correspondingly, many SHM algorithms have been tailored for WSNs to become distributed and less complicated. However, the modified algorithms usually cannot achieve the same damage detection quality of the original centralized counterparts. In this paper, we select a classical SHM algorithm: the eigen-system realization algorithm (ERA), and propose a distributed version for WSNs. In this approach, the required computations in the ERA are updated incrementally along a path constructed from the deployed sensor nodes. This distributed version is able to achieve the same quality of the original ERA using much smaller wireless transmissions and computations. The efficacy of the proposed approach is demonstrated through both simulation and experiment.
Original languageEnglish
Title of host publicationProceedings of the 2012 IEEE 33rd Real-Time Systems Symposium, RTSS 2012
Pages75-84
Number of pages10
DOIs
Publication statusPublished - 1 Dec 2012
Event2012 IEEE 33rd Real-Time Systems Symposium, RTSS 2012 - San Juan, Puerto Rico
Duration: 5 Dec 20127 Dec 2012

Conference

Conference2012 IEEE 33rd Real-Time Systems Symposium, RTSS 2012
CountryPuerto Rico
CitySan Juan
Period5/12/127/12/12

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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