Next Article in Journal
Online Assessment of Human-Robot Interaction for Hybrid Control of Walking
Previous Article in Journal
Development of a Hybrid Atomic Force Microscopic Measurement System Combined with White Light Scanning Interferometry
Article Menu

Export Article

Open AccessArticle
Sensors 2012, 12(1), 189-214; doi:10.3390/s120100189

Hierarchical Leak Detection and Localization Method in Natural Gas Pipeline Monitoring Sensor Networks

School of Instrumentation Science and Opto-Electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
*
Author to whom correspondence should be addressed.
Received: 3 November 2011 / Revised: 6 December 2011 / Accepted: 15 December 2011 / Published: 27 December 2011
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [483 KB, uploaded 21 June 2014]   |  

Abstract

In light of the problems of low recognition efficiency, high false rates and poor localization accuracy in traditional pipeline security detection technology, this paper proposes a type of hierarchical leak detection and localization method for use in natural gas pipeline monitoring sensor networks. In the signal preprocessing phase, original monitoring signals are dealt with by wavelet transform technology to extract the single mode signals as well as characteristic parameters. In the initial recognition phase, a multi-classifier model based on SVM is constructed and characteristic parameters are sent as input vectors to the multi-classifier for initial recognition. In the final decision phase, an improved evidence combination rule is designed to integrate initial recognition results for final decisions. Furthermore, a weighted average localization algorithm based on time difference of arrival is introduced for determining the leak point’s position. Experimental results illustrate that this hierarchical pipeline leak detection and localization method could effectively improve the accuracy of the leak point localization and reduce the undetected rate as well as false alarm rate. View Full-Text
Keywords: leak detection; leak point localization; hierarchical; pipeline monitoring; sensor networks leak detection; leak point localization; hierarchical; pipeline monitoring; sensor networks
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wan, J.; Yu, Y.; Wu, Y.; Feng, R.; Yu, N. Hierarchical Leak Detection and Localization Method in Natural Gas Pipeline Monitoring Sensor Networks. Sensors 2012, 12, 189-214.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top