Optical fiber line intelligent detection system and optical fiber line intelligent detection method for wavelength division multiplex (WDM) network

Abstract

The invention discloses an optical fiber line intelligent detection system and an optical fiber line intelligent detection method for a wavelength division multiplex (WDM) network. The detection system comprises a plurality of stations and a control unit, wherein the stations are connected with the control unit by an optical fiber; each station comprises an optical amplification unit, an optical monitoring unit and an optical channel performance detecting unit, at least one station is provided with an optical time domain reflectometry (OTDR) unit, and the input / output port of the test light of the OTDR unit is respectively connected to an optical multiplexer and an optical demultiplexer of the input end and the output end of the station by an optical multiplexing switch; and the control unit receives the alarm or performance abnormity information of the units and transmits an optical fiber line scanning signal to a relevant OTDR unit scanning optical fiber link. After an optical fiber line generates failure, the control automatically starts the relevant OTDR unit to scan the corresponding line and automatically marks a failure point in a global information system (GIS) map, thereby realizing the rapid positioning of the failure and shortening the business interruption time.

Description

technical field [0001] The invention relates to the field of WDM optical fiber networks, in particular to an intelligent detection system and detection method for optical fiber lines used in WDM networks. Background technique [0002] In order to satisfy fast-growing communication services, such as video transmission, optical fiber networks are widely used, and in optical fiber networks, wavelength division multiplexing (WDM) is most commonly used. WDM is a communication method in which a series of optical carriers carrying information are combined at a certain interval in the optical frequency domain and transmitted along a single optical fiber, and the optical carriers of different wavelengths are separated by a certain method at the receiving end. It has the following advantages: [0003] (1) High capacity: the rate of each wavelength can reach 40Gbit / s, and a single fiber can transmit more than 160 wavelengths; [0004] (2) Easy expansion: For the optical cables with a...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to solve the problem of slow positioning of faulty optical fiber lines, long troubleshooting time, and long service interruption time

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