A fiber-optical intrusion alarm system based on quasi-distributed fiber Bragg grating sensors

Author

Jiang, Qi ; Rao, Yun-Jiang ; Zeng, De-Hong

Author_Institution

Key Lab. of Optoelectron. Technol. & Syst. (Educ. Minist. of China), Chongqing Univ., Chongqing, China

fYear

2008

fDate

7-9 Nov. 2008

Firstpage

1

Lastpage

5

Abstract

A fiber-optical intrusion alarm system based on quasi-distributed fiber Bragg grating (FBG) sensors is demonstrated in this papaer. The algorithms of Empirical Mode Decomposition (EMD) and wavelet packet characteristic entropy are adopted to determine the intrusion location. The intrusion alarm software based on the Labview was developed, and it was also proved by the experiments. The results show that such a fiber-optical intrusion alarm system can offer the automatic intrusion alarm in real-time.

Keywords

Bragg gratings; fibre optic sensors; safety systems; wavelet transforms; empirical mode decomposition; fiber-optical intrusion alarm system; quasi-distributed fiber Bragg grating sensors; wavelet packet characteristic entropy; Alarm systems; Bragg gratings; Fiber gratings; Interference; Monitoring; Optical fiber devices; Optical fiber sensors; Optical sensors; Sensor phenomena and characterization; Sensor systems; EMD; FBG sensor; Intrusion alarm system; Wavelet analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Sensors Conference, 2008. APOS '08. 1st Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-2131-2

Electronic_ISBN

978-1-4244-2132-9

Type

conf

DOI

10.1109/APOS.2008.5226300

Filename

5226300