A Distributed Acoustic Sensing System for Vibration Detection and Classification in Railways

doi:10.12142/ZTECOM.202402010

ZTE Communications ›› 2024, Vol. 22 ›› Issue (2): 80-84.DOI: 10.12142/ZTECOM.202402010

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A Distributed Acoustic Sensing System for Vibration Detection and Classification in Railways

ZHU Songlin¹(), WANG Zhongyi¹, XIE Yunpeng¹, SUN Zhi²

^1.Wireline Product Planning Department, ZTE Corporation, Shanghai 201203, China
^2.Shenzhen Branch of China Telecom Corporation Limited, Shenzhen 518000, China

Received:2024-03-10 Online:2024-06-28 Published:2024-06-25
About author:ZHU Songlin (zhu.songlin@zte.com.cn) received his MS degree in theoretical physics from Hangzhou University, China in 1998 and PhD degree in electronic science and technology from Zhejiang University, China in 2001. He has been with the Wireline Product Planning Department, ZTE Corporation since 2001. His research interests include FTTx technology for optical communications and OTDR technology for optical sensing applications.
WANG Zhongyi received his bachelor's degree in communication engineering from Beijing University of Science and Technology, China in 2020 and his master's degree in information and communication engineering from Beijing University of Posts and Telecommunications, China in 2023. He joined the Wireline Product Planning Department, ZTE Corporation as a standard pre-research engineer in 2023. His research interests include the next generation PON technology and sensing technology in PON.
XIE Yunpeng obtained his bachelor's degree in computer science from the National University of Defense Technology, China in 1991 and his master's degree in communication engineering from Xidian University, China in 1999. He joined ZTE Corporation in 2000. His research interests include PON technology for optical access networks, FTTx optical link diagnosis, and fiber optic sensing technology.
SUN Zhi received his MS degree in microelectronics and semiconductor devices from Xidian University, China in 2000. He joined the Customer Service Dispatching and Resource Center, Shenzhen Branch of China Telecom in 2000. His research interests include fulfillment service, network resource management, operation support systems, and deterministic networks.

Abstract

Abstract:

A distributed acoustic sensing (DAS) system is proposed and a data processing method for vibration is designed in this paper. The proposed DAS system is based on the Rayleigh scattering signal and utilizes phase-sensitive optical time-domain reflectometry ( $?$ -OTDR) to demodulate the environmental vibration. It can collect the vibration information in railways and implement vibration classification based on the feature of sensed vibration signals. This system has been deployed in Guangzhou Shenzhen High-Speed Railway, and the experimental results validate its effectiveness.

Key words: DAS, φ-OTDR, vibration classification

ZHU Songlin, WANG Zhongyi, XIE Yunpeng, SUN Zhi. A Distributed Acoustic Sensing System for Vibration Detection and Classification in Railways[J]. ZTE Communications, 2024, 22(2): 80-84.

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References 8

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A Distributed Acoustic Sensing System for Vibration Detection and Classification in Railways

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