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Proceedings Paper

Phase-sensitive optical time domain reflectometer for distributed fence-perimeter intrusion detection
Author(s): Xuhui Yu; Deliang Zhou; Bin Lu; Sufang Liu; Ming Pan
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Paper Abstract

In this paper, we demonstrate a distributed fence-perimeter intrusion detection system using a phase-sensitive optical time domain reflectometer (Φ-OTDR) with several advantages, such as high spatial resolution, large detection range, single-end measurement and immunity from electromagnetic interference. By the effort of generating a high-extinction-ratio optical pulse, optimizing the incident optical power and utilizing a differential algorithm, a home-made Φ-OTDR system, as a distributed vibration sensor, is implemented with a spatial resolution of 10 meter. Nowadays, a fence-perimeter intrusion detection system is desired for the security monitor. We set up a fence perimeter using a fiber cable containing only one fiber and a field experiment is carried out based on our Φ-OTDR system. Various vibration events are recorded and analyzed, including wind blowing, personal climbing and knocking. The experiment results reveal unique vibration characteristics of different events in the frequency domain and confirm the effectiveness of the homemade Φ-OTDR system in the application of the distributed fence-perimeter intrusion detection.

Paper Details

Date Published: 8 October 2015
PDF: 5 pages
Proc. SPIE 9679, AOPC 2015: Optical Fiber Sensors and Applications, 96790S (8 October 2015); doi: 10.1117/12.2199685
Show Author Affiliations
Xuhui Yu, China Electronics Technology Group Corp. (China)
Deliang Zhou, China Electronics Technology Group Corp. (China)
Bin Lu, China Electronics Technology Group Corp. (China)
Sufang Liu, China Electronics Technology Group Corp. (China)
Ming Pan, China Electronics Technology Group Corp. (China)

Published in SPIE Proceedings Vol. 9679:
AOPC 2015: Optical Fiber Sensors and Applications
Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Gilberto Brambilla, Editor(s)

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