A system and method for judging whether there is a third-level optical splitting in an odn (optical distribution network) network

Abstract

The present disclosure relates to a system and method for judging whether there is third-level optical splitting in an ODN (Optical Distribution Network) network. Disclosed is a detection system for an optical distribution network ODN network. A detection module for a passive optical network, the detection module calculates the optical attenuation Yn of each optical network unit n from an optical line terminal to N optical network units, and Establish a linear regression model Yn=β with the distance Xn from the optical line terminal to each optical network unit n as a function 0 Xn+β 1 To obtain N groups (β 0 , β 1 ) coefficients, and for all N groups (β 0 , β 1 ) coefficient for cluster analysis and confirmation of outliers, from N groups (β 0 , β 1 ) is an outlier point determined as an abnormal light-splitting position, and the optical network unit to which the abnormal light-splitting position belongs is determined to be an abnormal optical network unit m.

Description

technical field [0001] The present disclosure relates to an optical network system in the communication field, in particular to a detection module of a passive optical network, and more particularly to a system and method for detecting whether there is a third-level optical splitting in an ODN (Optical Distribution Network) network. Background technique [0002] With the rapid development and low cost of optical fiber communication technology, it has been called a basic consensus that the communication network from the core network, the metropolitan area network to the access network, all use optical fibers to form a network. Adopting passive optical network (PON, PassiveOptical Network) for the access network has been called the first choice of operators. The basic structure of PON access network is optical line terminal (OLT), optical distribution network (ODN), and optical network unit (ONU) from the central office to the user. [0003] The ODN network is a tree structur...

AI Technical Summary

Problems solved by technology

If the user end illegally adds a first-level optical splitter at the exit of the optical splitter to form a third-level optical splitter, it will lead to increased transmission loss, optical signal degradation, and close to the critical value, affecting the quality of the user network

[0005] At present, there is no effective method to detect and judge the illegal addition of third-level optical splitters. It can only be manually checked on the ODN network site, which is time-consuming, laborious, and inefficient.

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