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Smart Structures and Systems Volume 6, Number 3, April 2010 , pages 263-275 DOI: https://doi.org/10.12989/sss.2010.6.3.263 |
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Wireless sensor networks for long-term structural health monitoring |
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Jonas Meyer, Reinhard Bischoff, Glauco Feltrin and Masoud Motavalli
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| Abstract | ||
| In the last decade, wireless sensor networks have emerged as a promising technology that could accelerate progress in the field of structural monitoring. The main advantages of wireless sensor networks compared to conventional monitoring technologies are fast deployment, small interference with the surroundings, self-organization, flexibility and scalability. These features could enable mass application of monitoring systems, even on smaller structures. However, since wireless sensor network nodes are battery powered and data communication is the most energy consuming task, transferring all the acquired raw data through the network would dramatically limit system lifetime. Hence, data reduction has to be achieved at the node level in order to meet the system lifetime requirements of real life applications. The objective of this paper is to discuss some general aspects of data processing and management in monitoring systems based on wireless sensor networks, to present a prototype monitoring system for civil engineering structures, and to illustrate long-term field test results. | ||
| Key Words | ||
| wireless sensor networks; monitoring; cable-stayed bridge; energy management in sensor networks; data reduction. | ||
| Address | ||
| Jonas Meyer, Reinhard Bischoff, Glauco Feltrin and Masoud Motavalli; Empa, Swiss Federal Laboratories for Materials Testing and Research, Ueberlandstrasse 129, 8600 Duebendorf, Switzerland | ||