Title:
WATER SUPPLY PIPELINE LEAKAGE DETECTION METHOD BASED ON THREE-DIMENSIONAL IMAGE ATTRIBUTE ANALYSIS USING GROUND PENETRATING RADAR
Document Type and Number:
WIPO Patent Application WO/2020/248817
Kind Code:
A1
Abstract:
A water supply pipeline leakage detection method based on three-dimensional image attribute analysis using a ground penetrating radar, comprising: obtaining original image data of a water supply pipeline by longitudinal scanning using a ground penetrating radar; performing noise reduction filtering on the obtained original image data; fitting the processed image data into three-dimensional data by means of interpolation, extracting a variety of planar or three-dimensional image attributes, and displaying same by means of longitudinal section, vertical section, horizontal slice, irregular slice, and isosurface; and accurately recognizing the location and extent of pipeline leakage using multi-attribute comprehensive analysis, and accurately locating the location and extent of pipeline leakage by means of multi-attribute comprehensive analysis. The frequency attribute is extracted to obtain a spectrum comprising rich information to further verify the location of leakage; and the amplitude attribute is extracted to perform high-resolution imaging of the leakage features to determine the extent of pipeline leakage.
Inventors:
ZHENG FEIFEI (CN)
SHEN YONGGANG (CN)
SHEN YONGGANG (CN)
Application Number:
PCT/CN2020/092532
Publication Date:
December 17, 2020
Filing Date:
May 27, 2020
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
F17D5/02; G01V3/12
Foreign References:
| CN110230780A | 2019-09-13 | |||
| CN206369816U | 2017-08-01 | |||
| CN108287369A | 2018-07-17 | |||
| CN103278816A | 2013-09-04 | |||
| CN107975678A | 2018-05-01 | |||
| DE4231882A1 | 1994-03-31 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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