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Your search keyword '"Zeng, Kehong"' showing total 7 results
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7 results on '"Zeng, Kehong"'

3. Vibration monitoring for the West-East Gas Pipeline Project of China by phase optical time domain reflectometry (phase-OTDR)

Author

Barerem-Melgueba Mao, Yun Chen, Fei Wang, Zeng Kehong, Yang Wenming, Bin Zhou, Dahai Zheng, Xutao Ji, Li Gang, and Lin Xiaohui

Subjects
Optical fiber, General Chemical Engineering, 010401 analytical chemistry, Phase (waves), 02 engineering and technology, Optical time-domain reflectometer, 021001 nanoscience & nanotechnology, Gas pipeline, 01 natural sciences, 0104 chemical sciences, law.invention, Vibration, law, Time domain, WEPP, 0210 nano-technology, Reflectometry, Instrumentation, Geology, General Environmental Science, Remote sensing
Abstract

Optical fiber phase optical time domain reflectometry (phase-OTDR) has been applied on the West-East Gas Pipeline Project (WEPP) of China for vibration monitoring. In order to improve the accuracy ...

Published
2020

5. Pipe Line Safety Monitoring using Distributed Optical Fiber Vibration Sensor in the China West-East Gas Pipeline Project

Author

Zhu Jianxin, Fei Wang, Lin Xiaohui, Li Gang, Bin Zhou, Ruoyu Sun, Zeng Kehong, Yang Wenming, and Chunguang Wang

Subjects
Optical fiber cable, Optical fiber, GeneralLiterature_MISCELLANEOUS, Line (electrical engineering), law.invention, Vibration, Pipeline transport, InformationSystems_MODELSANDPRINCIPLES, Filter (video), law, Fiber optic sensor, Environmental science, Physics::Chemical Physics, Physics::Atmospheric and Oceanic Physics, Marine engineering, Safety monitoring
Abstract

The current status of the optical fiber vibration sensing applied in the West-East Gas Pipeline project is introduced. A fast filter and a machine learning algorithm is used to distinguish the causes of vibration.

Published
2018

6. Vibration monitoring for the West-East Gas Pipeline Project of China by phase optical time domain reflectometry (phase-OTDR).

Author

Li, Gang, Zeng, Kehong, Zhou, Bin, Yang, Wenming, Lin, Xiaohui, Wang, Fei, Chen, Yun, Ji, Xutao, Zheng, Dahai, and Mao, Barerem-Melgueba

Subjects
*NATURAL gas pipelines, *REFLECTOMETRY, *MACHINE learning, *SOIL vibration, *VIBRATION measurements, *AUTOMATIC speech recognition
Abstract

Optical fiber phase optical time domain reflectometry (phase-OTDR) has been applied on the West-East Gas Pipeline Project (WEPP) of China for vibration monitoring. In order to improve the accuracy of the threat identification, a machine learning algorithm from the voice recognition is introduced. The feature extraction and pre-emphasis processes were modified to characterize the vibrations in the soil. The threat identification accuracy increased from 83% in 2017 to 90.6% in 2018 by continuously training the algorithm. Massive vibration measurements were recorded during the past two years and interesting results have been obtained from the data analysis. These results are expected to assist engineers to have a better understanding of how the threatening incidents occur near pipelines. [ABSTRACT FROM AUTHOR]

Published
2021
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