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System, apparatus and method for acquiring light path fault location

A technology of fault location and optical path, applied in the field of communication, can solve problems such as high cost and expensive OTDR, and achieve the effects of reducing negative impact, shortening operation and maintenance time, and reducing costs

Inactive Publication Date: 2012-12-12
李鹏飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] As a special optical path fault diagnosis instrument, OTDR is expensive, which makes the cost of operation and maintenance very high
Moreover, this fault diagnosis method often needs to interrupt the normal operation of the system in order to connect the OTDR to the system to work

Method used

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  • System, apparatus and method for acquiring light path fault location
  • System, apparatus and method for acquiring light path fault location
  • System, apparatus and method for acquiring light path fault location

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Embodiment Construction

[0037] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] refer to figure 1 Shown is the flow chart of embodiment one of the method of the present invention, comprises steps:

[0039] Step 101, obtaining the failure time when the optical path fails;

[0040] Step 102. Obtain the downlink time when the downlink data with errors starts from the OLT;

[0041] Step 103: After taking the difference between the fault time and the downlink time, multiply it by the downlink rate of the downlink data to obtain a product of one, and determine the product one as the distance between the fault point and the OLT.

[0042] Utilizing the embodiment of the present invention, by obtaining the failure time when the optical path fails, for the downlink data caused by the error due to the optical path failure, obtain the downlink time when the error occurs from the OLT, and then take the difference ...

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Abstract

The embodiment of the invention discloses two methods for obtaining the fault position of light path, one method of which is: obtaining the fault time when a light path fault occurs; obtaining the downlink time of a first false downlink data from the OLT; subtracting the fault time from the downlink time and multiplying the result by the downlink speed to get a product (1),considering the product(1) as the distance from the fault point to the OLT; or obtaining the fault time when a light path fault occurs; obtaining the uplink time of a first false uplink data from the OLT; subtracting the fault time from the uplink time and multiplying the result by the uplink speed to get a product (2),subtracting the product (2) from the length of the light path to get a value, and considering the value as the distance from the fault point to the OLT. The invention also discloses two devices and systems for obtaining the fault position of the light path.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method, device and system for acquiring the location of an optical path fault. Background technique [0002] Acquiring the location of optical path faults is of great significance in the application of communication systems. Quickly and accurately determining the location of optical path faults is helpful to quickly eliminate faults, so that the communication system can resume normal work as soon as possible. [0003] The GPON system (Gigabit-capable Passive Optical Network, G-bit passive optical network) consists of the central office equipment OLT (Optical Line Termination, optical line terminal), remote equipment ONT (Optical Network Termination, optical network terminal, also called ONU, optical Network unit) and ODN (Optical Distribution Network, optical distribution network, which includes optical splitters) and other units, both OLT and ONT contain devices capable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/08H04Q11/00H04B10/075
Inventor 刘武剑曾小飞
Owner 李鹏飞