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New-generation distributed video on demand (VOD) service technique

A video-on-demand and video server technology, applied in the field of transmission services, can solve problems such as limited user data, high server performance requirements, and high construction costs

Inactive Publication Date: 2004-01-28
梁肇新
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

In particular, for a metropolitan area network (such as telecommunications or radio and television), if it provides VOD services, the number of users will be very large. If a server is used for VOD services, then the performance requirements of this server will be lower. Very high, so its construction cost will be very high; moreover, the user data it supports is limited

Method used

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  • New-generation distributed video on demand (VOD) service technique
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  • New-generation distributed video on demand (VOD) service technique

Examples

Experimental program
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Embodiment Construction

[0009] The main job of the audio and video stream player (hereinafter referred to as the player) is to interact with the video server, scheduling server and WWW server to obtain the required audio and video stream data from the video server and play it; it obtains the live broadcast of the live server through the video server data flow.

[0010] The main job of the video server is to obtain the data stream from the storage device or the live server according to the request of the scheduling server and the player, and transmit it to the player. In a system, there can be multiple video servers, and they are scheduled by the scheduling server.

[0011] The main job of the scheduling server is to decide which video server will serve the player according to the player's request and the current status of each video server.

[0012] The WWW server provides a program search function for audio and video streams.

[0013] The live broadcast server can broadcast the audio and video str...

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PUM

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Abstract

Two main factors for determining the performance of audio / video stream transmitting on network are network bandwidth and I / O throughput rate of storage device. Also the two factors determine cost for building network. In the invention, traditional functional module of server of video on demand (VOD) is divided into several modules (video server, dispatching server, WWW server and living broadcast server). Based on the need, each server is configured. Player is worked with several servers collaboratively so as to constitute a effective distributed VOD service system. The system possesses good expandability. The invention also puts forward a solution of VOD system based on metropolitan area network.

Description

1 technical field [0001] The present invention focuses on solving how to make full use of network resources to provide the transmission service of VOD audio and video streams, and at the same time provides a solution for realizing this service. 2 Technical Background [0002] Network bandwidth and storage device input and output (hereinafter referred to as IO) throughput are the two main factors that determine the performance of audio and video streams transmitted on the network. 100MBPS (MBPS refers to 1M bits per second) network to transmit audio and video streams for The server that transmits data only needs a 100MBPS network card and a 100MBPS IO device. But, the network of 100MBPS can only transmit the MPEG1 audio and video flow of the Moving Picture Experts Group (MPEG) of 1.5MBPS about 70 at most. Calculated in this way, a 1000MBPS network can transmit about 700 1.5MBPS MPEG1 audio and video streams. At the same time, the server is required...

Claims

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Application Information

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IPC IPC(8): H04N7/16
Inventor 梁肇新
Owner 梁肇新
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