Wireless measurement system for structural health monitoring with high time synchronization accuracy

Araujo Pinto, Álvaro and García-Palacios, Jaime H. and Blesa Martínez, Javier and Tirado, Francisco and Romero Perales, Elena and Samartín, Avelino and Nieto-Taladriz García, Octavio (2012). Wireless measurement system for structural health monitoring with high time synchronization accuracy. "IEEE Transactions on Instrumentation and Measurement", v. 61 (n. 3); pp. 801-810. ISSN 0018-9456. https://doi.org/10.1109/TIM.2011.2170889.

Description

Title: Wireless measurement system for structural health monitoring with high time synchronization accuracy
Author/s:
  • Araujo Pinto, Álvaro
  • García-Palacios, Jaime H.
  • Blesa Martínez, Javier
  • Tirado, Francisco
  • Romero Perales, Elena
  • Samartín, Avelino
  • Nieto-Taladriz García, Octavio
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Instrumentation and Measurement
Date: March 2012
Volume: 61
Subjects:
Freetext Keywords: Embedded computing, structural health monitoring (SHM), synchronization, telemetry, wireless sensor
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Ingeniería Electrónica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Structural health monitoring (SHM) systems have excellent potential to improve the regular operation and maintenance of structures. Wireless networks (WNs) have been used to avoid the high cost of traditional generic wired systems. The most important limitation of SHM wireless systems is time-synchronization accuracy, scalability, and reliability. A complete wireless system for structural identification under environmental load is designed, implemented, deployed, and tested on three different real bridges. Our contribution ranges from the hardware to the graphical front end. System goal is to avoid the main limitations of WNs for SHM particularly in regard to reliability, scalability, and synchronization. We reduce spatial jitter to 125 ns, far below the 120 μs required for high-precision acquisition systems and much better than the 10-μs current solutions, without adding complexity. The system is scalable to a large number of nodes to allow for dense sensor coverage of real-world structures, only limited by a compromise between measurement length and mandatory time to obtain the final result. The system addresses a myriad of problems encountered in a real deployment under difficult conditions, rather than a simulation or laboratory test bed.

More information

Item ID: 22673
DC Identifier: http://oa.upm.es/22673/
OAI Identifier: oai:oa.upm.es:22673
DOI: 10.1109/TIM.2011.2170889
Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6061956&tag=1
Deposited by: Memoria Investigacion
Deposited on: 03 Mar 2014 18:02
Last Modified: 17 Apr 2015 14:43
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