Proceedings ArticleDOI
Health monitoring of civil infrastructures using wireless sensor networks
Sukun Kim,Shamim N. Pakzad,David E. Culler,James Demmel,Gregory L. Fenves,Steven D. Glaser,Turon Martin A +6 more
- Vol. 6, pp 254-263
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TLDR
A Wireless Sensor Network for Structural Health Monitoring is designed, implemented, deployed and tested on the 4200 ft long main span and the south tower of the Golden Gate Bridge and the collected data agrees with theoretical models and previous studies of the bridge.Abstract:
A Wireless Sensor Network (WSN) for Structural Health Monitoring (SHM) is designed, implemented, deployed and tested on the 4200 ft long main span and the south tower of the Golden Gate Bridge (GGB). Ambient structural vibrations are reliably measured at a low cost and without interfering with the operation of the bridge. Requirements that SHM imposes on WSN are identified and new solutions to meet these requirements are proposed and implemented. In the GGB deployment, 64 nodes are distributed over the main span and the tower, collecting ambient vibrations synchronously at 1 kHz rate, with less than 10 mus jitter, and with an accuracy of 30 muG. The sampled data is collected reliably over a 46-hop network, with a bandwidth of 441 B/s at the 46th hop. The collected data agrees with theoretical models and previous studies of the bridge. The deployment is the largest WSN for SHM.read more
Citations
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Building and optimizing declarative networked systems
Joseph M. Hellerstein,David Chu +1 more
TL;DR: The findings indicate that ideas from data management may yield dividends for the design of networked systems in two key areas: (1) declarative interfaces for simplicity yet breadth of expressiveness, and (2) automatic optimizations for automatic performance improvements on the users' behalf.
Journal ArticleDOI
Energy-Efficient Heterogeneous Wireless Sensor Deployment with Multiple Objectives for Structural Health Monitoring
TL;DR: Results show that a set of strategically positioned heterogeneous sensors can maintain a balanced trade-off between the modal information accuracy and energy consumption and it is observed that an appropriate cluster-tree network topology can further achieve energy saving in HWSNs.
Proceedings ArticleDOI
Sensor Network for Pavement Performance Monitoring
TL;DR: A sensor network system capable of estimating the load of trucks in real-time and utilizes low deployment and maintenance cost wireless sensors that provides a reliable estimate of truck loads is described.
Journal ArticleDOI
Design and analysis of efficient neural intrusion detection for wireless sensor networks
Tarek Batiha,Pavel Krömer +1 more
TL;DR: The acceleration of a neural intrusion detection model, developed specifically for wireless sensor networks, is proposed and studied, especially from the learning and classification accuracy and energy consumption points of view.
Proceedings ArticleDOI
An adaptive refinement-based algorithm for median queries in wireless sensor networks
TL;DR: This paper proposes an exact algorithm to process Median queries that is based on a series of refinement queries, which aim at optimizing each Histogram query, hence optimizing the overall cost of the Median query.
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