A cost effective FBG-based security fence with fire alarm function

H. J. Wu; S. S. Li; X. L. Lu; Y. Wu; Y. J. Rao

doi:10.1117/12.914038

30 January 2012 A cost effective FBG-based security fence with fire alarm function

H. J. Wu, S. S. Li, X. L. Lu, Y. Wu, Y. J. Rao

Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835134 (2012) https://doi.org/10.1117/12.914038
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia

Abstract

Fiber Bragg Grating (FBG) is sensitive to the temperature as well when it is measuring the strain change, which is always avoided in most measurement applications. However, in this paper strain/temperature dual sensitivity is utilized to construct a special security fence with a second function of fire threat prediction. In an FBG-based fiber fence configuration, only by characteristics analysis and identification method, it can intelligently distinguish the different effects of personal threats and fires from their different trends of the wavelength drifts. Thus without any additional temperature sensing fittings or other fire alarm systems integrated, a normal perimeter security system can possess a second function of fire prediction, which can not only monitor the intrusion induced by personal actions but also predict fire threats in advance. The experimental results show the effectiveness of the method.

Citation Download Citation

H. J. Wu, S. S. Li, X. L. Lu, Y. Wu, and Y. J. Rao "A cost effective FBG-based security fence with fire alarm function", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835134 (30 January 2012); https://doi.org/10.1117/12.914038

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