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Research Projects

Structural Health Monitoring Using Smart Wireless Sensor Networks

Research Team: Babak Moaveni (PI), Usman Khan (co-PI)
Funding: Tufts Collaborates
Duration: 9/2013 present
Relevant publications to date: 

Use of wireless sensors in structural health monitoring has received increased attention among researchers in recent years. The objective of this study is to develop a methodology for structural health monitoring within the network, i.e., damage diagnosis is performed within the sensors in near real-time and is aided by inter-sensor communications. To implement our proposed methodology, we will use smart sensors that are capable of information exchange among their neighbors and small-scale computation. The sensors will extract low-dimensional damage-sensitive features from the raw measurements of structural response such as acceleration time histories. The local features will be fused via information exchange to get network-level statistics of features, which are then transmitted to the DCU by local leaders (or a central sensor node). Damage diagnosis will be performed using network-level statistics of the extracted features. The proposed methodology will be implemented and evaluated on a test bed, namely the Dowling Hall Footbridge at Tufts campus. Figure 1 shows an outline of this study.


Figure 1. Proposed technical tasks in this study

 
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