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Method and system for determining operation state of optical cable based on polarization mode dispersion

A polarization mode dispersion, operating state technology, used in transmission systems, electromagnetic wave transmission systems, electrical components, etc.

Active Publication Date: 2020-05-29
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention proposes a method and system for determining the operating state of an optical cable based on polarization mode dispersion (Polarization Mode Dispersion, PMD) to solve the problem of how to determine the type of external force that the optical cable receives

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  • Method and system for determining operation state of optical cable based on polarization mode dispersion
  • Method and system for determining operation state of optical cable based on polarization mode dispersion
  • Method and system for determining operation state of optical cable based on polarization mode dispersion

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Embodiment Construction

[0030] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0031] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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PUM

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Abstract

The invention discloses a method and a system for determining the operation state of an optical cable based on polarization mode dispersion, and the method comprises the steps: carrying out the polarization mode dispersion PMD value detection of a to-be-detected optical cable, so as to obtain the real-time PMD value of the to-be-detected optical cable; comparing the real-time PMD value of the to-be-detected optical cable with a preset PMD value and matching degree quantification relation table, and determining a matching degree quantification index of the to-be-detected optical cable; and according to the real-time PMD value of the to-be-detected optical cable and the matching degree quantification index of the to-be-detected optical cable, matching the stress type based on a preset stresstype time spectrogram, and determining the stress type of the external force applied to the to-be-detected optical cable. According to the method for determining the operation state of an optical cable based on polarization mode dispersion, after the real-time PMD value of the to-be-detected cable is determined, the stress type of the external force received by the to-be-detected optical cable can be conveniently and quickly determined according to the stress type time spectrogram and the PMD value and matching degree quantitative relation table, so that the operation state of the to-be-detected optical cable is determined.

Description

technical field [0001] The present invention relates to the field of power communication optical cables in power transmission lines and urban power transmission channels, and more specifically, to a method and system for determining the operating state of optical cables based on polarization mode dispersion. Background technique [0002] While power and communication optical cables are developing vigorously, external force damage is more prominent. At present, the operation defects of optical cables and optical fibers cannot be found in time. Basically, only when the optical fiber is interrupted, the optical time domain reflectometer (OTDR) can be used to find the location of the breakpoint after the event. Only a small number of optical cables are tested for optical fiber stress. On-line test and analysis are carried out for the health status of optical fiber and optical cable operation, and there are many emergencies, which fail to meet the condition-based maintenance requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/079
CPCH04B10/07951
Inventor 王国彬冯学斌侯继勇罗江霍美如崔军
Owner CHINA ELECTRIC POWER RES INST