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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Journal ArticleDOI
A Fault Tolerant Protocol for Clock Synchronization in Sensor Networks
Yuhei Kikuya,Hideaki Ishii +1 more
TL;DR: It is shown that for resilient clock synchronization, the network of agents must possess a graphical property known as robustness, and extends a recently developed resilient consensus algorithm where the non-faulty nodes ignore part of the collected data taking extreme values.
Journal ArticleDOI
Bayesian Test for Multiple Hypothesis Testing Problem with Quadratic Loss
TL;DR: The main contribution of the paper is the design of the Bayesian test with a quadratic loss function and its asymptotic study and the numerical experiments show that the proposed test outperforms theBayesian test associated to the 0—1 loss function when compared by using the quadratics loss function.
Proceedings ArticleDOI
Bridge dynamic analysis for accurate control and monitoring: Feasibility study
TL;DR: It was discovered to be possible to identify the conditions leading to advanced deformations and collapse of the bridge, and an sensor network able to identifies the earliest damage which can occurs on the bridge is proposed.
Journal ArticleDOI
Neighborhood View Consistency in Wireless Sensor Networks
Arshad Jhumka,Luca Mottola +1 more
TL;DR: A new software device called pseudocrash failure detector is introduced, its properties are studied, and necessary and sufficient conditions for solving NVC with PCDs are identified, and it is proved that, in the presence of transient faults, NVC is impossible to solve with any PCDs, thus defining two weaker specifications of the problem.
Proceedings ArticleDOI
MidSHM: A Flexible Middleware for SHM Application Based on Service-Oriented Architecture
TL;DR: An easy-to-use SOA-based middleware, named MidSHM, has been proposed to deal with various SHM application issues such as resource optimization, in-network processing, quality of service, and fault tolerance.
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