Design and Implementation of Scalable Wireless Sensor Network for Structural Monitoring

An integrated hardware and software system for a scalable wireless sensor network (WSN) is designed and developed for structural health monitoring. An accelerometer sensor node is designed, developed, and calibrated to meet the requirements for structural vibration monitoring and modal identification. The nodes have four channels of accelerometers in two directions and a microcontroller for processing and wireless communication in a multihop network. Software components have been implemented within the TinyOS operating system to provide a flexible software platform and scalable performance for structural health monitoring applications. These components include a protocol for reliable command dissemination through the network and data collection, and improvements to software components for data pipelining, jitter control, and high-frequency sampling. The prototype WSN was deployed on a long-span bridge with 64 nodes. The data acquired from the testbed were used to examine the scalability of the network and the data quality. Robust and scalable performance was demonstrated even with a large number of hops required for communication. The results showed that the WSN provides spatially dense and accurate ambient vibration data for identifying vibration modes of a bridge.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10760342
• Authors:
  • Pakzad, Shamim N
  • Fenves, Gregory L
  • Kim, Sukun
  • Culler, David E
• Publication Date: 2008-3

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References;
• Pagination: pp 89-101
• Serial:
  • Journal of Infrastructure Systems
  • Volume: 14
  • Issue Number: 1
  • Publisher: American Society of Civil Engineers
  • ISSN: 1076-0342
  • EISSN: 1943-555X
  • Serial URL: http://ascelibrary.org/journal/jitse4

Subject/Index Terms

• TRT Terms: Bridges; Design; Implementation; Monitoring; Network nodes; Software; Structures; Vibration; Wireless sensor networks
• Uncontrolled Terms: Data; Hardware; Mode identification; Scalability
• Subject Areas: Bridges and other structures; Design; Highways; Research; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01090551
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 21 2008 8:48AM