Multi-point transmission data method

Abstract

The invention discloses a multicast data transmission method which comprises the following steps: firstly, data is packed into data blocks in the content server; and each data block is distributed with a fixed sequence number. When a user opens software and clicks a program, eight adjacent nodes are automatically selected from a directory server and a node list connected with the program; eight threads are opened and simultaneously obtain different data from the nodes to play the program, thereby realizing multi-point data transmission; in order to realize data management, data tables are established in the eight nodes and user nodes and show that the user stores certain data and needs to receive certain data; the data tables are periodically exchanged between the nodes for data transmission; if the eight nodes do not find corresponding data, the eight nodes are connected with the content server and send an asking request for data transmission. With the method, a superposed network can be constructed on the Internet and is utilized to realize the multicast based on an application layer; the more users accessing the network, the rapider the downloading speed is, and network television live broadcast can be smoothly realized; therefore, an operator does not need to expand the server along the increase of accessed users, thereby saving mass fund.

Description

technical field [0001] The invention relates to a multipoint data transmission method. Background technique [0002] With the continuous development of network technology, users have higher and higher requirements for network transmission, but the current transmission technology requires users to download to a personal computer to watch the corresponding program, resulting in a waste of time. In addition, the existing online viewing Because network programs use single-point transmission, all data is received from one node, which has two disadvantages: 1. Because only one node receives data, the transmission speed is slow. When the network condition is not good, the data transmission speed If the playback speed is lower than the playback speed, it is prone to playback pause; 2. When the node receiving the data exits, it must find the node to start transmission again. At this time, all the data comes from the new node, which may cause playback interruption, especially as the v...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of network technology, users have higher and higher requirements for network transmission, but the current transmission technology requires users to download to a personal computer to watch the corresponding program, resulting in a waste of time. In addition, the existing online viewing Because network programs use single-point transmission, all data is received from one node, which has two disadvantages: 1. Because only one node receives data, the transmission speed is slow. When the network condition is not good, the data transmission speed If the playback speed is lower than the playback speed, it is prone to playback pause; 2. When the node receiving the data exits, it must find the node to start transmission again. At this time, all the data comes from the new node, which may cause playback interruption, especially as the viewing user The increase will cause network congestion

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