Decentralized random decrement technique for data aggregation and system identification in wireless smart sensor networks

Sung Han Sim, B. F. Spencer, Hongki Jo, Juan Francisco Carbonell-Márquez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Smart sensors have been recognized as a promising technology with the potential to overcome many of the inherent difficulties and limitations associated with traditional wired structural health monitoring (SHM) systems. The unique features offered by smart sensors, including wireless communication, on-board computation, and cost effectiveness, enable deployment of the dense array of sensors that are needed for monitoring of large-scale civil infrastructure. Despite the many advances in smart sensor technologies, power consumption is still considered as one of the most important challenges that should be addressed for the smart sensors to be more widely adopted in SHM applications. Data communication, the most significant source of the power consumption, can be reduced by appropriately selecting data processing schemes and the related network topology. This paper presents a new decentralized data aggregation approach for system identification based on the Random Decrement Technique (RDT). Following a brief overview of RDT, which is an output-only system identification approach, a hierarchical approach is described and shown to be suitable for implementation in the intrinsically decentralized computing environment found in wireless smart sensor networks (WSSNs). RDT-based decentralized data aggregation is then implemented on the Imote2 smart sensor platform based on the Illinois Structural Health Monitoring Project (ISHMP) Services Toolsuite. Finally, the efficacy of the decentralized RDT method is demonstrated experimentally in terms of the required data communication and the accuracy of identified dynamic properties.

Original languageEnglish (US)
Title of host publicationSolid Mechanics and its Applications
Pages305-314
Number of pages10
Volume29
DOIs
StatePublished - 2011
Externally publishedYes
EventIUTAM Symposium on Nonlinear Stochastic Dynamics and Control - Hangzhou, China
Duration: May 10 2010May 14 2010

Publication series

NameSolid Mechanics and its Applications
Volume29
ISSN (Print)18753507

Other

OtherIUTAM Symposium on Nonlinear Stochastic Dynamics and Control
CountryChina
CityHangzhou
Period5/10/105/14/10

Fingerprint

Smart sensors
system identification
Sensor networks
Identification (control systems)
Agglomeration
Structural health monitoring
sensors
structural health monitoring
Communication
Electric power utilization
communication
cost effectiveness
Cost effectiveness
wireless communication
dynamic characteristics
Topology
topology
platforms
Monitoring
Sensors

Keywords

  • Decentralized processing
  • Natural Excitation Technique
  • Output-only system identification
  • Random Decrement Technique
  • Wireless smart sensor

ASJC Scopus subject areas

  • Aerospace Engineering
  • Automotive Engineering
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Acoustics and Ultrasonics

Cite this

Sim, S. H., Spencer, B. F., Jo, H., & Carbonell-Márquez, J. F. (2011). Decentralized random decrement technique for data aggregation and system identification in wireless smart sensor networks. In Solid Mechanics and its Applications (Vol. 29, pp. 305-314). (Solid Mechanics and its Applications; Vol. 29). https://doi.org/10.1007/978-94-007-0732-0_30

Decentralized random decrement technique for data aggregation and system identification in wireless smart sensor networks. / Sim, Sung Han; Spencer, B. F.; Jo, Hongki; Carbonell-Márquez, Juan Francisco.

Solid Mechanics and its Applications. Vol. 29 2011. p. 305-314 (Solid Mechanics and its Applications; Vol. 29).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sim, SH, Spencer, BF, Jo, H & Carbonell-Márquez, JF 2011, Decentralized random decrement technique for data aggregation and system identification in wireless smart sensor networks. in Solid Mechanics and its Applications. vol. 29, Solid Mechanics and its Applications, vol. 29, pp. 305-314, IUTAM Symposium on Nonlinear Stochastic Dynamics and Control, Hangzhou, China, 5/10/10. https://doi.org/10.1007/978-94-007-0732-0_30
Sim SH, Spencer BF, Jo H, Carbonell-Márquez JF. Decentralized random decrement technique for data aggregation and system identification in wireless smart sensor networks. In Solid Mechanics and its Applications. Vol. 29. 2011. p. 305-314. (Solid Mechanics and its Applications). https://doi.org/10.1007/978-94-007-0732-0_30
Sim, Sung Han ; Spencer, B. F. ; Jo, Hongki ; Carbonell-Márquez, Juan Francisco. / Decentralized random decrement technique for data aggregation and system identification in wireless smart sensor networks. Solid Mechanics and its Applications. Vol. 29 2011. pp. 305-314 (Solid Mechanics and its Applications).
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