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TDR-based pipe leakage detection and location using Bayesian inference

  • Taejin Kim
  • , Taejin Kim Sihyeong Woo
  • , Byeng D. Youn
  • , Young Cheol Huh
  • Seoul National University
  • Korea Institute of Machinery and Materials

Research output: Contribution to conferenceConference paperpeer-review

Abstract

TDR is used to detect and locate the water leakages at pipe joint. A wire attached on the pipe surface is soaked by water when the leakage occurs and it affects the characteristic impedance of the wet part, leading to the change of the reflected signal. To infer the leakage from the TDR signal, we used the finite difference time domain based forward model which provides output of the TDR signal given the configuration of the transmission line. Then by solving the inverse problem using Bayesian inference, the locations and the number of leakages are found. The suggested method is validated for multiple leakages which has complex signal to interpret.

Original languageEnglish
Title of host publication2015 IEEE Conference on Prognostics and Health Management
Subtitle of host publicationEnhancing Safety, Efficiency, Availability, and Effectiveness of Systems Through PHAf Technology and Application, PHM 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479918935
DOIs
StatePublished - 2015.09.8
EventIEEE Conference on Prognostics and Health Management, PHM 2015 - Austin, United States
Duration: 2015.06.222015.06.25

Publication series

Name2015 IEEE Conference on Prognostics and Health Management: Enhancing Safety, Efficiency, Availability, and Effectiveness of Systems Through PHAf Technology and Application, PHM 2015

Conference

ConferenceIEEE Conference on Prognostics and Health Management, PHM 2015
Country/TerritoryUnited States
CityAustin
Period15.06.2215.06.25

Keywords

  • Bayesian inference
  • Leakage detection
  • Pipe
  • Time domain reflectrometry (TDR)

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