Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply Pipelines
Leak location in water-supply pipelines is of great significance in order to preserve water resources and reduce economic losses. Cross-correlation (CC) based leak location is a popular and effective method in water-supply pipelines (WSP). However, with a decrease of signal to noise ratio (SNR), the...
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9051709/ |
| _version_ | 1818665235986251776 |
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| author | Shuaiyong Li Chuanqiang Xia Zhenhua Cheng Weipei Mao Ying Liu Daryoush Habibi |
| author_facet | Shuaiyong Li Chuanqiang Xia Zhenhua Cheng Weipei Mao Ying Liu Daryoush Habibi |
| author_sort | Shuaiyong Li |
| collection | DOAJ |
| description | Leak location in water-supply pipelines is of great significance in order to preserve water resources and reduce economic losses. Cross-correlation (CC) based leak location is a popular and effective method in water-supply pipelines (WSP). However, with a decrease of signal to noise ratio (SNR), the errors of time-delay estimation (TDE) based on CC will become larger making it almost impossible to determine a leakage position. Hence, this work proposes leak location based on a combination of phase difference spectrum and variational mode decomposition (PDS-VMD) of leakage-induced vibration signal under low SNR for WSP. Firstly, the leakage-induced vibration signal is decomposed into several intrinsic mode functions (IMFs) by VMD, where the characteristic frequency band is determined by PDS of cross spectrum of two leakage signals. Then, the energy ratio of leakage signal in characteristic frequency band serves as a guideline to select effective IMF components from the decomposed IMFs. Finally, the selective IMFs are reconstituted into a new signal which can be used to determine a leak position using CC based TDE. In order to verify the effectiveness of the proposed leak location algorithm, the method based on PDS-VMD is compared with that using CC, combination of CC coefficient and VMD (CCC-VMD) using both simulation and experiment. The simulation and experimental results demonstrate that the proposed PDS-VMD method is more suitable for leak location in WSP, which provides immunity to both broadband and narrow band noise under low SNR. |
| first_indexed | 2024-12-17T05:45:25Z |
| format | Article |
| id | doaj.art-20bb4e3da5684154a015d7519f76f517 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-17T05:45:25Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-20bb4e3da5684154a015d7519f76f5172022-12-21T22:01:19ZengIEEEIEEE Access2169-35362020-01-018680916810210.1109/ACCESS.2020.29846409051709Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply PipelinesShuaiyong Li0https://orcid.org/0000-0002-3914-5173Chuanqiang Xia1https://orcid.org/0000-0001-5206-7109Zhenhua Cheng2https://orcid.org/0000-0002-9974-3140Weipei Mao3https://orcid.org/0000-0003-2287-4262Ying Liu4https://orcid.org/0000-0003-2101-3401Daryoush Habibi5Key Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications, Chongqing, ChinaKey Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications, Chongqing, ChinaKey Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications, Chongqing, ChinaKey Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications, Chongqing, ChinaSchool of Engineering, Edith Cowan University, Joondalup, WA, AustraliaSchool of Engineering, Edith Cowan University, Joondalup, WA, AustraliaLeak location in water-supply pipelines is of great significance in order to preserve water resources and reduce economic losses. Cross-correlation (CC) based leak location is a popular and effective method in water-supply pipelines (WSP). However, with a decrease of signal to noise ratio (SNR), the errors of time-delay estimation (TDE) based on CC will become larger making it almost impossible to determine a leakage position. Hence, this work proposes leak location based on a combination of phase difference spectrum and variational mode decomposition (PDS-VMD) of leakage-induced vibration signal under low SNR for WSP. Firstly, the leakage-induced vibration signal is decomposed into several intrinsic mode functions (IMFs) by VMD, where the characteristic frequency band is determined by PDS of cross spectrum of two leakage signals. Then, the energy ratio of leakage signal in characteristic frequency band serves as a guideline to select effective IMF components from the decomposed IMFs. Finally, the selective IMFs are reconstituted into a new signal which can be used to determine a leak position using CC based TDE. In order to verify the effectiveness of the proposed leak location algorithm, the method based on PDS-VMD is compared with that using CC, combination of CC coefficient and VMD (CCC-VMD) using both simulation and experiment. The simulation and experimental results demonstrate that the proposed PDS-VMD method is more suitable for leak location in WSP, which provides immunity to both broadband and narrow band noise under low SNR.https://ieeexplore.ieee.org/document/9051709/VMDcross-spectral analysisleakage locationlow SNRwater supply pipeline |
| spellingShingle | Shuaiyong Li Chuanqiang Xia Zhenhua Cheng Weipei Mao Ying Liu Daryoush Habibi Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply Pipelines IEEE Access VMD cross-spectral analysis leakage location low SNR water supply pipeline |
| title | Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply Pipelines |
| title_full | Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply Pipelines |
| title_fullStr | Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply Pipelines |
| title_full_unstemmed | Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply Pipelines |
| title_short | Leak Location Based on PDS-VMD of Leakage-Induced Vibration Signal Under Low SNR in Water-Supply Pipelines |
| title_sort | leak location based on pds vmd of leakage induced vibration signal under low snr in water supply pipelines |
| topic | VMD cross-spectral analysis leakage location low SNR water supply pipeline |
| url | https://ieeexplore.ieee.org/document/9051709/ |
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