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Proceedings Paper

Long term wireless ambient monitoring of heritage buildings
Author(s): Huayong Wu; Matteo Pozzi; Daniele Zonta; Paolo Zanon; Matteo Ceriotti; Luca Mottola; Gian Pietro Picco; Amy L. Murphy; Stefan Guna; Michele Corrà
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Paper Abstract

Motivated by the preservation of an artistic treasure, the fresco of the "Cycle of the Months" on the second floor in an historic tower, Torre Aquila, a wireless sensor network (WSN) has been developed and installed for permanent health monitoring. The monitoring scheme covers both static and dynamic evaluation of the tower structural integrity from local to global scale and consists of 17 nodes, including 2 long length fiber optic sensors (FOS), 3 accelerometers and 12 environmental nodes. The system has been working for 1.5 years and has been debugged and updated both as to hardware and software. This paper focuses mainly on the ambient vibration analysis used to investigate the performance of the sensor nodes and structural properties of the tower. Initial ambient vibration monitoring shows that cyclic environmental factors, such as traffic flow, are not the dominant cause of tower vibration; and the vibration levels of the tower in different axes are not large enough to be a critical issue calling for attention under current conditions. It proves that the WSN is an effective tool, capable of providing information relevant to safety assessment of the tower.

Paper Details

Date Published: 31 March 2010
PDF: 12 pages
Proc. SPIE 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010, 76470K (31 March 2010); doi: 10.1117/12.848006
Show Author Affiliations
Huayong Wu, Univ. degli Studi di Trento (Italy)
Matteo Pozzi, Univ. degli Studi di Trento (Italy)
Daniele Zonta, Univ. degli Studi di Trento (Italy)
Paolo Zanon, Univ. degli Studi di Trento (Italy)
Matteo Ceriotti, Fondazione Bruno Kessler (Italy)
Luca Mottola, Swedish Institute of Computer Science (Sweden)
Gian Pietro Picco, Univ. degli Studi di Trento (Italy)
Amy L. Murphy, Fondazione Bruno Kessler (Italy)
Stefan Guna, Univ. degli Studi di Trento (Italy)
Michele Corrà, Tretec S.r.l. (Italy)

Published in SPIE Proceedings Vol. 7647:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010
Masayoshi Tomizuka, Editor(s)

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