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《Acta Photonica Sinica》 2011-11
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A Novel Method for Simultaneous Intrusion Detection and Fire Alarm in a Single FBG-based Fiber Fence Monitoring System Configuration

WU Hui-juan,LI Shan-shan,LU Xiang-lin,WU Yu,RAO Yun-jiang(Key Lab of Optical Fiber Sensing & Communications(Ministry of Education),University of Electronic Science & Technology of China,Chengdu 611731,China)  
The fiber Bragg grating is sensitive to both the temperature and the strain on sensors,while the trends of their wavelength drifts differ to each other a lot.A special fiber fence monitoring system based on the fiber Bragg grating sensing network is investigated,which can realize the perimeter intrusion detection and the area fire protection simultaneously in a single sensing system configuration.A signal processing method is proposed which can intelligently tell if there is any threat and which kind of event it is according to the extracted signal characteristics in the time and frequency domains.Thus a normal perimeter security system possesses a second function of fire prediction,without any additional temperature sensing cables or other fire alarm systems in parallel.The results show the effectiveness of the method.
【Fund】: 国家自然科学基金(No.1234546)资助
【CateGory Index】: TN253
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Chinese Journal Full-text Database 2 Hits
1 LI Jian-zhong1,RAO Yun-jiang2,RAN Zeng-ling2 (1 Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang,Sichuan 621900,China) (2 Key Lab of Broadband Optical Fiber Transmission & Communication Networks,University of Electronic and Science Technology of China,Chengdu 610054,China);Distributed Fiber-optic Intrusion Sensor System Based on POTDR[J];Acta Photonica Sinica;2009-11
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2 Gao Cunxiao1 Zhu Shaolan1,2 Feng Li1 Song Zhiyuan1,2 Cao Zongying1 He Haodong1 Niu Linquan1,2 (1State Key Laboratory of Transient Optics and Photonics,Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi′an,Shaanxi 710119,China 2Graduate University of Chinese Academy of Sciences,Beijing 100049,China);An All Fiber Laser for Distributed Optical Fiber Sensor[J];Chinese Journal of Lasers;2010-06
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1 DONG Xian_zi1, WU Chong_qing1, FU Song_nian2, HE Na1 (1.School of Sciences; 2.School of Electronics and Information Engineering, Beijing JiaoTong University, Beijing 100044,China);Study of Extracting Information from Distributed Optical Fiber Sensing System Based on P-OTDR[J];Journal of Northern Jiaotong University;2003-06
2 TAN Jing1,2,CHEN Wei-min1, FU Yu-mei1 (1 The Key Laboratory for Optoelectronic Technology & Systems,Education Ministry of China,Chongqing University,Chongqing 400030,China)(2 The 95478 Unit of PLA,Chongqing 400329,China);A Research on Polarization Effects in the Single Distributed Optical Fiber Sensor Based on Sagnac Interferometer[J];Acta Photonica Sinica;2007-03
3 WU Yong-hong1,SU Huai-zhi1,XU Hong-zhong2,GAO Pei-wei1,CAI Hai-weng3 (1 College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210090,China) (2 College of Civil Engineering,Nanjing University of Technology,Nanjing 210093,China) (3 Shanghai Institute of Optics and fine mechanics,Chinese Academy of Sciences,Shanghai 201800,China);Study on Mmultiplexing Capability of Huge Concrete Dam Crack Distributed Fiber Optic Monitoring[J];Acta Photonica Sinica;2007-04
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