Fault detection method for optical distribution network, device and passive optical network system

A technology of optical distribution network and fault detection, which is applied in the field of optical communication, can solve problems such as low efficiency, and achieve the effect of solving low efficiency

Active Publication Date: 2018-12-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a fault detection method and device for an optical distribution network, and a passive optical network system, so as to at least solve the technical problem of low efficiency in determining an ODN fault in the related art

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  • Fault detection method for optical distribution network, device and passive optical network system
  • Fault detection method for optical distribution network, device and passive optical network system
  • Fault detection method for optical distribution network, device and passive optical network system

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Embodiment 1

[0039] figure 1 is a schematic diagram of the network architecture of the present invention, and the embodiment of the present application can run on figure 1 On the network architecture shown, the system of the present invention also includes: EMS100, OLT200, ODN300, ONU400, wherein,

[0040] EMS100 is used for configuration, management and maintenance of OLT200 and EPON network; EMS network management maintains and manages historical information of OLT200 and ONU400 as well as related alarm and notification messages. And can complete the judgment and location of specific abnormal information according to relevant alarm and notification messages;

[0041] OLT200, manages and controls ONU400, completes the registration and authentication of ONU400 when the optical path quality is normal, and completes the data forwarding;

[0042] ODN300 is used to connect different numbers of ONU400 under OLT200, as a direct physical connection channel between OLT200 and ONU400, with PON po...

Embodiment 2

[0071] In this embodiment, a fault detection device for an optical distribution network and a passive optical network system are also provided. The device is used to implement the above embodiments and preferred implementation modes, and those that have already been explained will not be repeated. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0072] image 3 is a structural block diagram of a fault detection device for an optical distribution network according to an embodiment of the present invention, such as image 3 As shown, the device includes:

[0073] An acquisition module 30, configured to acquire the uplink / downlink optical path attenuation of a plurality of optical network units ONU to...

Embodiment 3

[0087] This embodiment is an optional embodiment according to the present invention, and is used to describe the application in detail:

[0088] This embodiment relates to point-to-multipoint (PToMP) and point-to-point (PToP) communication technologies / systems of any Passive Optical Network (PON, Passive Optical Network) in the access network, and implements a A method and system for automatic query of xPON terminal optical splitting ratio and rapid detection and positioning of ODN optical path attenuation. According to the working mechanism, passive optical network equipment can be divided into Ethernet-based passive optical network equipment (EPON, Ethernet Passive Optical Network), Gigabit passive optical network equipment (G-PON, Gigabit-capable Passive Optical Network) and other work mechanism of passive optical network equipment; these passive optical network equipment have the same system architecture, including an optical line terminal (OLT, Optical Line Terminal) and ...

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Abstract

The present invention provides a fault detection method for an optical distribution network, a fault detection device for an optical distribution network and a passive optical network system. The method includes the following steps that: the uplink/downlink optical path attenuation of a plurality of optical network units (ONU) to which optical line terminals (OLT) belong is acquired; whether the optical path attenuation of the plurality of ONUs is qualified is judged according to a preset threshold; the PON ports of a passive optical network are traversed, so that whether ONUs with valid optical path attenuation exist under the PON ports of the passive optical network can be judged, wherein the ONUs adopt the PON ports as units; and if the ONUs with valid optical path attenuation exist under the PON ports, the number of light splitting stages of optical paths under the PON ports corresponding to the valid ONUs is determined, and the fault of the optical distribution network (ODN) underdifferent light splitting stages are also determined. With the method of the invention adopted, the technical problem of low efficiency in determining the faults of the ODN in the prior art is solved.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a fault detection method and device for an optical distribution network, and a passive optical network system. Background technique [0002] In the xPON network of passive optical network, the common networking system is composed of network management server (EMS), OLT, optical distribution network (ODN, Optical Distribution Network) and several ONUs: OLT is used as the central office equipment with PON port as the unit Through the ODN network management, connection, and aggregation of multiple ONU devices; the ONU device accepts the management of the OLT device to realize the access of user services, thereby realizing functions such as data services and configuration management; the ODN network mainly includes backbone optical fibers, multiple branch optical fibers, and It consists of an optical splitter or other connectors that connect the trunk fiber and the branch fiber. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/079H04Q11/00
CPCH04B10/0791H04B10/0795H04Q11/0067H04Q2011/0083
Inventor 余辰东
Owner ZTE CORP
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