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A data repair method with hierarchical structure and node equipment for realizing the method

A technology for data repair and node equipment, which is applied in data exchange networks, digital transmission systems, electrical components, etc., to reduce the amount of data, reduce network transmission overhead, and improve use efficiency.

Active Publication Date: 2016-06-29
BEIJING MEDIAMIX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The present invention provides a data repair method with a layered structure and a node device for realizing the method, which are used to solve the problems of layered data transmission, forwarding and repair under the integration environment of a one-way network and a two-way network

Method used

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  • A data repair method with hierarchical structure and node equipment for realizing the method
  • A data repair method with hierarchical structure and node equipment for realizing the method
  • A data repair method with hierarchical structure and node equipment for realizing the method

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Embodiment Construction

[0071] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0072] Such as figure 1 As shown, a kind of hierarchical structure data restoration method described in Embodiment 1 comprises the following steps:

[0073] Step 1, the terminal locates the location where the data is lost, and sends a repair request to the directly connected node device;

[0074] Step 2, the directly connected node device responds immediately after receiving the repair request and returns a confirmation message, the confirmation message is a response message including a confirmation code;

[0075] Step 3: After receiving the confirmation, the terminal starts a timer and sends a second repair request message after waiting for a delay of T1, and the second repair request message includes the confirma...

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Abstract

The invention relates to a data recovery method of a layered structure and a node device for realizing the data recovery method. The data recovery method comprises the steps that a terminal sends a recovery request to a node device, the node device replies a confirmation message; and the terminal receives the confirmation message and then sends a second request message, provides a point-to-point or point-to-multi-point data recovery to the terminal if required data pieces exist on a direct connection node device and services can be immediately provided, and replies the terminal to provide a terminal address and a waiting time delay T2 of recovery services if the required data pieces do not exist on a direct connection node device and services can not be immediately provided, and the terminal automatically selects a recovery mode. The node device comprises a network communication assembly, a message processing assembly and a data cache assembly, wherein the network communication assembly is communicated with a broadcasting server through a one-way network and is communicated with a recovery server and a terminal through a bidirectional network. According to the invention, the data recovery is carried out by adopting a network node equipment forwarding method, the quantity and the path of recovery requests transmitted between a front end server and the terminal are reduced, the workload of the front end server is lightened, and the recovery efficiency is increased.

Description

technical field [0001] The present invention relates to the technical field of layered data transmission, forwarding and repair in the fusion of one-way network and two-way network, in particular to a method and network for layered data distribution and repair under the network environment of one-way network and two-way network fusion node device. Background technique [0002] Below are some nomenclature explanations in this area, and its scope of use is limited to the present invention: [0003] Point-to-point repair: refers to the behavior that a repair source sends repair data pieces to a terminal to be repaired for data file repair. [0004] Point-to-multipoint repair: refers to the behavior that a repair source sends repair data pieces to multiple terminals to be repaired at the same time for data file repair. [0005] Threshold value: It is the number of terminals requesting repair for the same data piece referred to when switching between "point-to-point" repair mod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
Inventor 徐杰何晶张进万康
Owner BEIJING MEDIAMIX TECH
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