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Author

Sim, Sung-Han
Smart Infrastructure Systems Lab
Research Interests
  • Smart Sensor and Sensor Network, Structural Health Monitoring, Digital Image Processing

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A wireless smart sensor network for automated monitoring of cable tension

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Title
A wireless smart sensor network for automated monitoring of cable tension
Author
Sim, Sung-HanLi, JianJo, HongkiPark, Jong-WoongCho, SoojinBillie, F Spencer JrJung, Hyung-Jo
Keywords
autonomous monitoring; cable tension; embedded processing; vibration; wireless smart sensor
Issue Date
201402
Publisher
IOP PUBLISHING LTD
Citation
SMART MATERIALS AND STRUCTURES, v.23, no.2, pp.1 - 10
Abstract
As cables are primary load carrying members in cable-stayed bridges, monitoring the tension forces of the cables provides valuable information regarding structural soundness. Incorporating wireless smart sensors with vibration-based tension estimation methods provides an efficient means of autonomous long-term monitoring of cable tensions. This study develops a wireless cable tension monitoring system using MEMSIC's Imote2 smart sensors. The monitoring system features autonomous operation, sustainable energy harvesting and power consumption, and remote access using the internet. To obtain the tension force, an in-network data processing strategy associated with the vibration-based tension estimation method is implemented on the Imote2-based sensor network, significantly reducing the wireless data transmission and the power consumption. The proposed monitoring system has been deployed and validated on the Jindo Bridge, a cable-stayed bridge located in South Korea.
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DOI
http://dx.doi.org/10.1088/0964-1726/23/2/025006
ISSN
0964-1726
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