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A rapid detection system for fiber breakage in fiber optic fences

A detection system and optical fiber technology, which is applied in transmission systems, optical instrument testing, electromagnetic wave transmission systems, etc., can solve the problems of false detection and alarm delay of fiber breakage detection in optical fiber fences, and achieve the effect of less increase and less cost.

Active Publication Date: 2021-02-23
北京润光泰力科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for rapid detection of fiber breakage in fiber optic fences, which solves the problems of misjudgment and alarm delay in the detection of fiber breakage in fiber optic fences in the prior art

Method used

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  • A rapid detection system for fiber breakage in fiber optic fences
  • A rapid detection system for fiber breakage in fiber optic fences
  • A rapid detection system for fiber breakage in fiber optic fences

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this description, but as long as they are within the protection of the present invention are protected by patent law.

[0025] image 3 It is a flow chart of a method for quickly detecting fiber breakage in an optical fiber fence according to an embodiment of the present invention. The method includes steps:

[0026] S101: Generate a first optical signal and a third optical signal coupled with the second optical signal;

[0027] Specifically, such as Figure 4 The shown flow chart of generating a first optical signal and a third optical signal coupled with a second optical signal includes steps:

[0028...

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Abstract

The invention discloses a fast detection system for fiber breakage of an optical fiber fence, relates to the technical field of on-off detection of optical fiber, and solves the problems of misjudgment of alarm and excessive time delay in the detection of fiber breakage in the prior art. The method includes: generating a first optical signal and a third optical signal coupled with the second optical signal; coupling the first optical signal with the third optical signal coupled with the second optical signal to output a fourth optical signal; judging whether the optical fiber is broken If the value of the fourth optical signal is greater than zero, it is determined that the optical fiber is not broken, and if the value of the fourth optical signal is equal to zero, it is determined that the optical fiber is broken.

Description

technical field [0001] The invention relates to the technical field of on-off detection of optical fibers, in particular to a rapid detection system for fiber breakage of an optical fiber fence. Background technique [0002] In the fiber optic fence protection system, if the fiber optic cable in the protection area is cut, the entire protection system will not work normally, so the detection of fiber break alarm is an indispensable function of the system. The current basis for detecting fiber break alarms is that after the optical cable in the defense zone is disconnected, the signal received by the device will be at a low ebb for a long time. However, when the environment is particularly quiet, the signal normally received by the device will also be at a low ebb for a long time. Therefore, in order to eliminate the long-lasting normal working state of the low-frequency signal when the fiber-cut alarm is reported, the time window for detecting fiber-cut has to be set to be ...

Claims

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Application Information

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IPC IPC(8): G01M11/08H04B10/073
CPCG01M11/088H04B10/0731
Inventor 陈宇飞刘文静
Owner 北京润光泰力科技发展有限公司
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