Title:
OPTICAL FIBER GRATING SENSING METHOD APPLIED TO SMALL-SIZE FIRE SOURCE MONITORING
Document Type and Number:
WIPO Patent Application WO/2021/228273
Kind Code:
A1
Abstract:
A optical fiber grating sensing method applied to small-size fire source monitoring, which distinguishes between the two concepts of spatial resolution and perception resolution. Under the premise of ensuring the spatial resolution of a traditional FBG sensing system, only the number of FBGs covered by a single pulsed optical signal is increased without changing the pulse width of the pulsed optical signal, thereby improving the perception resolution of the system without increasing the requirements of a hardware circuit, which really shortens the interval between adjacent FBGs and improves the perception resolution of the system, which not only ensures the spatial resolution of the system, but also achieves the monitoring of small-scale fire sources. By means of employing a simple feature extraction algorithm to obtain fire temperature information in different regions, the temperature detection speed of the system is fast.
Inventors:
LI ZHENGYING (CN)
WANG LIXIN (CN)
WANG HONGHAI (CN)
GUO HUIYONG (CN)
JIANG DESHENG (CN)
WANG JIAQI (CN)
WANG LIXIN (CN)
WANG HONGHAI (CN)
GUO HUIYONG (CN)
JIANG DESHENG (CN)
WANG JIAQI (CN)
Application Number:
PCT/CN2021/099390
Publication Date:
November 18, 2021
Filing Date:
June 10, 2021
Export Citation:
Assignee:
UNIV WUHAN TECH (CN)
International Classes:
G01K11/3206; G08B17/00
Foreign References:
| CN111579114A | 2020-08-25 | |||
| CN106781193A | 2017-05-31 | |||
| CN102564643A | 2012-07-11 | |||
| CN108548548A | 2018-09-18 | |||
| CN101788310A | 2010-07-28 | |||
| US5051595A | 1991-09-24 |
Attorney, Agent or Firm:
WUHAN HONGGUAN PATENT AGENCY(GENERAL PARTNERSHIP) (CN)
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