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CWDM based underground pipeline detection node optical-fiber energy supply method and device

A detection node, optical fiber energy supply technology, applied in the direction of optical fiber transmission, wavelength division multiplexing system, etc., can solve the problem of difficult energy supply of underground pipelines

Active Publication Date: 2015-05-06
WUHAN POST & TELECOMM RES INST CO LTD
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Problems solved by technology

[0018] In view of the deficiency of the background technology, the present invention uses the signal optical fiber to trigger the linkage energy supply optical fiber to supply energy to the detection nodes of the underground pipelines to realize signal detection and data collection, so that the detection nodes are in the energy supply state when they need to work, so the energy supply After the completion, the power supply is turned off, and the present invention can well solve the problem of difficult energy supply for underground pipelines

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  • CWDM based underground pipeline detection node optical-fiber energy supply method and device

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Embodiment Construction

[0032] Glossary:

[0033] CWDM is a low-cost WDM transmission technology for the access layer of the metropolitan area network. CWDM uses multiplexers and demultiplexers to realize the transmission of optical signals of different wavelengths on a single optical fiber.

[0034] OC is: the coupling switch between the signal fiber λ1 and the energy supply fiber λp in the detection node.

[0035] S is: the switching switch on the energy supply fiber λp in the detection node.

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] The invention relates to a system topology and an implementation method for providing selectable and controllable optical fiber energy supply to detection nodes along the underground pipeline to realize remote signal detection of nodes along the pipeline.

[0038] Such as figure 1 As shown, for several detection nodes along the ground pipeline, the power supply fiber connection is realized ...

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Abstract

The invention relates to the field of CWDM communication network photoelectric energy conversion and relates to a CWDM based underground pipeline detection node optical-fiber energy supply method and device. Energy supply optical fibers penetrating a plurality of detection nodes are triggered and linked by CWDM multi-channel signal optical fibers to supply power for any one detection node at each position of an underground pipeline, and accordingly, selective signal detection and data acquisition of the nodes are achieved, the detection nodes are only in an energy supply state when in need of operation, and a power supply is turned off after energy supplying. By means of the method and the device, the problem of the difficulty in energy supply during underground pipe line monitoring can be well solved.

Description

technical field [0001] The invention relates to the field of photoelectric energy conversion of a CWDM communication network, in particular to an optical fiber energy supply method and device for underground pipeline detection nodes based on CWDM. Background technique [0002] 1. Background technology of photoelectric energy conversion [0003] Photoelectric energy conversion technology has been applied to 3V and 5V gallium arsenide (GaAs) conversion equipment. This technology is more suitable for long-distance copper wire power transmission or on-site battery power supply in traditional energy supply applications. It is easily affected by complex environments and cannot be stable and sustainable. The situation, and then the on-site energy supply is realized by the photoelectric energy conversion that can be flexibly controlled. [0004] At the sending end, semiconductor laser diodes are used to convert electrical energy into laser light for transmission in optical fibers,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/02H04B10/25
Inventor 罗振桑梓勤刘武向智宇周训宙
Owner WUHAN POST & TELECOMM RES INST CO LTD
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