Efficient campaign-type structural health monitoring using wireless smart sensors

Jian Li; Tomonori Nagayama; Kirill A. Mechitov; Billie F. Spencer Jr.

doi:10.1117/12.914860

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3 April 2012 Efficient campaign-type structural health monitoring using wireless smart sensors

Jian Li; Tomonori Nagayama; Kirill A. Mechitov; Billie F. Spencer Jr.

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Proceedings Volume 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012; 83450U (2012) https://doi.org/10.1117/12.914860
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

Wireless Smart Sensor Networks (WSSNs) have attracted great attention in recent years for Structural Health Monitoring (SHM), enabling better understanding of the dynamic behavior of large scale civil infrastructures through dense deployment of sensors. With a fraction of the deployment time and cost compared with wired SHM systems, WSSNs can serve as ideal systems for campaign-type monitoring for (i) short-term, in-service performance evaluation, (ii) postdisaster condition assessment, (iii) design optimization of long-term SHM system before permanent deployment, etc. Efficient data collection is generally needed in campaign monitoring due to limited operation time. A number of improvements have been made to the Illinois SHM Project (ISHMP) Services Toolsuite to facilitate efficient data collection for campaign monitoring. A post-sensing time synchronization scheme is proposed to reduce the latency of data collection while maintaining high accuracy of synchronization of collected data. A multi-hop bulk data transfer approach using multiple RF channels is also implemented to achieve high data throughput.

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Jian Li, Tomonori Nagayama, Kirill A. Mechitov, and Billie F. Spencer Jr. "Efficient campaign-type structural health monitoring using wireless smart sensors", Proc. SPIE 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012, 83450U (3 April 2012); https://doi.org/10.1117/12.914860

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