Optical fiber interferometer arrangement method of region anti-intrusion system based on optical fiber interferometer

An optical fiber interferometer, anti-intrusion technology, applied in instruments, anti-theft alarms, using optical devices to transmit sensing components, etc., can solve problems such as environmental impact

Inactive Publication Date: 2010-12-01
CHINA PETROLEUM PIPELINE BUREAU
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fiber optic interferometers in the current interference technology solutions are all single interferometers and a single line of defense. These solutions ar

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical fiber interferometer arrangement method of region anti-intrusion system based on optical fiber interferometer
  • Optical fiber interferometer arrangement method of region anti-intrusion system based on optical fiber interferometer
  • Optical fiber interferometer arrangement method of region anti-intrusion system based on optical fiber interferometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] The present invention will be further described in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.

[0075] Embodiment. The composition of this example is as Figure 14 As shown, a plurality of defense zones are set on the periphery of the protected area, and each defense zone is provided with a fiber optic interferometer. The fiber optic interferometers between the defense zones are connected in series by an optical path adapter 17. The instrument is then connected back to the optical path adapter 17.

[0076] The light source 15 is connected to the optical path adapter 17 by the transmission optical path I 16, and the output of the optical path adapter 17 is connected to each defense zone of the sensing optical path by the transmission optical path II 18.

[0077] First, design the number of defense zones and defense lines according to the characteristics of the area to be pro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides an optical fiber interferometer arrangement method of a region anti-intrusion system based on an optical fiber interferometer, wherein one or more defense regions are arranged at the boundary of a protection region of the optical fiber interferometer according to the size of the protection region and a requirement of information precision of an intrusion alarming position, and at least one integrated cycle is formed for the protection region; the plurality of defense regions which are connected in series or parallel form one integrated cycle for the protection region; the light of a light source is transmitted to a light path adapter via a transmission light path, then divided into a plurality of paths corresponding to the defense regions by the light path adapter; one or more defense lines parallel to the boundary are arranged in each of the defense regions, and the plurality of defense lines are arranged at intervals in a longitudinal direction, and each defense line is composed of one path of optical fiber interferometer; the phase difference of the light signal transmitted in two arms of the optical fiber interferometers of each defense region is detected so as to distinguish the characteristic of the doubtful interference events in the boundary of the protection region; when the signal characteristic satisfies the intrusion characteristic mode, the system determines the position of the vibration signal and alarms.

Description

technical field [0001] The invention relates to an optical fiber interferometer-based laying method for an optical fiber interferometer in an area anti-invasion system, and relates to the technical fields of mechanical vibration measurement, impact measurement and pipeline systems. Background technique [0002] Regional security has always been an important issue, such as military bases, airports, armories, oil depots, oil and gas pipeline stations and residential quarters, etc., and the effective protection of these areas is crucial. [0003] At present, the main area intrusion prevention technologies are based on electricity and light. [0004] Electricity-based technologies mainly include high-voltage grid technology and leaky cable technology. The high-voltage power grid is set up on the border of some important areas, which can deter intruders to a certain extent, but the high-voltage power grid has poor security and does not have a linkage alarm function; when using l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G08B13/186G01D5/26
Inventor 张金权刘伟李金祥王小军焦书浩王飞刘素杰霍峰赵锋崔海龙方德学杨文明
Owner CHINA PETROLEUM PIPELINE BUREAU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap