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Method and device capable of synchronously realizing brillouin distributed optical fiber sensing monitoring and data communication

A distributed optical fiber and data communication technology, applied in the direction of optical fiber transmission, transmission system, electromagnetic wave transmission system, etc., can solve the problems that are not conducive to the widespread use of BOTDA technology and increase the cost of use

Inactive Publication Date: 2010-12-08
李淑英
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This increases the user's use cost, which is not conducive to the widespread use of BOTDA technology

Method used

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  • Method and device capable of synchronously realizing brillouin distributed optical fiber sensing monitoring and data communication
  • Method and device capable of synchronously realizing brillouin distributed optical fiber sensing monitoring and data communication
  • Method and device capable of synchronously realizing brillouin distributed optical fiber sensing monitoring and data communication

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Embodiment Construction

[0020] The specific implementation method and device that the present invention adopts are described in detail below in conjunction with accompanying drawing:

[0021] In order to realize the purpose of distributed sensor monitoring and data communication at the same time in the present invention, the present invention adopts such as Figure 4 system shown. The system includes nodes 301 and 302 , and the two nodes are connected by a sensing and monitoring optical fiber 303 . The nodes cooperate with each other for sending and receiving to realize two-way communication and sensing monitoring and processing functions. The optical fiber 303 serves as a sensing monitoring medium and also serves as a communication channel to transfer data between nodes.

[0022] The two nodes have the same structure, and in the present invention, one node is regarded as a local node and the other node is regarded as a remote node. The specific implementation device of each node is as follows fig...

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Abstract

The invention provides a method and a device capable of synchronously realizing brillouin distributed optical fiber sensing monitoring and data communication. Nodes are arranged at two ends of a sensing optical fiber, and the nodes transmit periodical optical signals including pulsed light, continuous light and communication light. The pulsed light and the continuous light are interacted in the optical fiber to realize the distributed monitoring of sensing information. The communication light is located in an interval between the pulsed light and the continuous light to realize the communication of data among the nodes. The invention shares a part of devices for brillouin distributed sensing monitoring and related communication so as to reduce the use cost of the system.

Description

technical field [0001] The invention relates to the field of distributed Brillouin optical fiber sensing and the field of coherent communication. Specifically, the invention realizes a method and a device capable of simultaneously performing data communication and Brillouin distributed optical fiber sensing monitoring. Background technique [0002] Optical fiber sensors have the advantages of high sensitivity, no electromagnetic interference, and low price of optical fiber media. Optical fiber sensors are widely used in the measurement and monitoring of physical quantities such as pressure, temperature, and strain. Among them, the method of using the Brillouin effect of the optical fiber medium to realize a distributed optical fiber sensor is widely used in the measurement and monitoring of temperature and stress of electric power, pipelines, dams, etc. because it can perform distributed measurement and continuous monitoring. In order to obtain distribution measurement with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/08H04B10/148H04B10/16H04B10/25
Inventor 董子源
Owner 李淑英