Efficient structural health monitoring with wireless sensor networks using a vibration-based frequency domain pattern matching technique

William Contreras, Sotirios Ziavras

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Structural health monitoring (SHM) concerns the development of strategies to assess the condition of instrumented engineering structures. Most SHM techniques involve some form of physics-based modeling, which can be difficult and costly. We propose an efficient vibration-collecting method using wireless sensor networks (WSNs) that minimizes the need to perform modeling, making the SHM system easy to deploy on any structure with little to no modification. In our algorithm, we employ a two-layer stacking technique, similar to protocol stacking in networking. At the core of the algorithm is a frequency domain pattern matching technique applied to observed vibrations that is executed by each sensor node in the bottom layer of the algorithm. An energy management scheme for attaining the desired lifetime of the WSN is also proposed. The scheme is based upon a novel energy management circuit that decreases current for inactive sensor nodes, such to increase the lifetime of the nodes up to 90-fold. Upper bounds on system lifetime are determined experimentally using sensor nodes based upon the Zolertia Z1 mote. Finally, the pattern matching technique is validated on an experimental structure.

Original languageEnglish (US)
Title of host publication2017 IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference, UEMCON 2017
EditorsSatyajit Chakrabarti, Himadri Nath Saha
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages356-362
Number of pages7
ISBN (Electronic)9781538611043
DOIs
StatePublished - Jul 1 2017
Event8th IEEE Annual Ubiquitous Computing, Electronics and Mobile Communication Conference, UEMCON 2017 - New York City, United States
Duration: Oct 19 2017Oct 21 2017

Publication series

Name2017 IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference, UEMCON 2017
Volume2018-January

Other

Other8th IEEE Annual Ubiquitous Computing, Electronics and Mobile Communication Conference, UEMCON 2017
CountryUnited States
CityNew York City
Period10/19/1710/21/17

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Hardware and Architecture
  • Computer Networks and Communications
  • Biotechnology

Keywords

  • Distributed processing
  • Frequency-domain analysis
  • Vibration measurement
  • Wireless sensor network

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