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Peer-to-peer progressive transmission method of large-scale DVE scene based on extensible interest area

A technology of area of ​​interest and transmission method, which is applied in the field of distributed virtual environment data transmission, can solve the problems of low data request success rate, low real-time data transmission, and simple scene picking strategy, so as to reduce the number of information interactions and improve transmission efficiency , the effect of improving accuracy and success rate

Inactive Publication Date: 2017-06-13
JILIN ANIMATION INST
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Problems solved by technology

[0008] The purpose of the present invention is to provide a method for peer-to-peer progressive transmission of large-scale DVE scenes based on scalable regions of interest, which solves the problems of simple scene picking strategies, low real-time data transmission and low success rate of data requests in the prior art

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  • Peer-to-peer progressive transmission method of large-scale DVE scene based on extensible interest area
  • Peer-to-peer progressive transmission method of large-scale DVE scene based on extensible interest area
  • Peer-to-peer progressive transmission method of large-scale DVE scene based on extensible interest area

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Embodiment Construction

[0059] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0060] see Figure 1 to Figure 6 As shown, the peer-to-peer progressive transmission method based on scalable area of ​​interest (AOI, area of ​​interest) large-scale DVE (Distributed Virtual Environments, distributed virtual environment) scene of the present invention specifically includes the following steps:

[0061] Step A00: Divide the avatar's ROI circular domain into two fan-shaped ROIs (SOI, Sector of Interests), and dynamically expand each fan-shaped ROI into a multi-layer incremental ROI sector (MISSOI, Multi- layered&Incrementally Scalable SOI);

[0062] Step B00: Search for the set of scene download sources required by the avatar from the multi-layer incremental interest fan domain through the scene download source hierarchical search algorithm;

[0063] Step C00: Select the optimal scene download so...

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Abstract

The invention relates to a peer-to-peer progressive transmission method of a large-scale DVE scene based on an extensible interest area. The method comprises the following steps: dividing a circular domain of the interest area of an embodiment into two fan-shaped interest areas, and dynamically extending each fan-shaped interest area to a multilayer incremental fan-shaped domain; searching a scene downloading source set necessary for the embodiment from the multilayer incremental fan-shaped domain through a scene downloading source hierarchical search algorithm; and selecting an optimal scene downloading source from the scene downloading source set through an optimal scene downloading source selection algorithm. A partition extension algorithm of MISSOI is provided according to the scene data size in a node AOI and the available bandwidth of a neighbor node, and the priority of the scene incremental downloading is optimized to improve the scene pickup precision; the information interaction times are reduced, the accuracy and success rate of data request are greatly improved, the transmission efficiency of scene data is improved, and the load of the system is balanced and optimized.

Description

technical field [0001] The invention relates to a distributed virtual environment data transmission method, in particular to a peer-to-peer progressive transmission method based on a large-scale DVE scene of an extensible interest area. Background technique [0002] Large-scale DVE network transmission mode has gone through three stages of development: (1) single server / multi-client; (2) multi-server / multi-client; (3) peer-to-peer (P2P, Peer-to-Peer). The first transmission mode is simple and mature, and the data consistency is good, but it may bring a high workload to the server when a large number of users download at the same time; the second mode uses multiple servers to reduce the workload of a single server, although The load of each server can be reduced, but when the number of users in some sub-regions increases sharply, the defects of the single server / multi-client structure still exist, and the "user migration" strategy will increase additional overhead; the third ...

Claims

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Application Information

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IPC IPC(8): H04L29/08
CPCH04L67/1078H04L67/06
Inventor 贾金原王伟王明飞冯长宝
Owner JILIN ANIMATION INST