Video service redundant backup method, device and system based on multicast

A technology of redundant backup and video service, applied in the field of streaming media, can solve the problems of undetectable abnormal state of program stream, unable to send program stream normally, unable to realize backup transmission of nVOD service, etc., so as to achieve the effect of redundant backup.

Inactive Publication Date: 2008-03-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The problem to be solved by the embodiment of the present invention is to provide a nVOD service redundancy backup method, device and system to solve the problem that the current nVOD system cannot detect that the nVOD server sends The status of the program stream is abnormal, so that the program stream cannot be sent normally, so the backup transmission of nVOD service cannot be realized

Method used

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  • Video service redundant backup method, device and system based on multicast
  • Video service redundant backup method, device and system based on multicast
  • Video service redundant backup method, device and system based on multicast

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Embodiment Construction

[0033] The present invention is described in detail below in conjunction with accompanying drawing and embodiment, please refer to Fig. 2 and show as the method flowchart of the embodiment of the present invention, specifically comprise steps:

[0034] Step S201: receiving the data stream of the video server;

[0035] Step S202: If it is judged that the state of the data flow is abnormal, then stop sending the data flow to the IP network;

[0036] Step S203: triggering the IP network to switch the transmission of the data stream to the redundant video server.

[0037] In the first preferred embodiment provided by the present invention, two switches are deployed, which are respectively responsible for the transmission of the program streams of the two nVOD servers. The two switches are respectively connected to the IP network through two routers. Please refer to FIG. 3 for details. As shown, the specific process of realizing nVOD program stream redundant backup transmission is...

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Abstract

A method, apparatus and system for redundancy backup of video services are provided. The method includes: receiving a data stream from a video server; stopping delivering the data stream to an Internet Protocol (IP) network if determining that the data stream is abnormal; and triggering the IP network to change delivery of the data stream over to a redundant video server. With the method provided by the present invention, when the data stream played by the Near Video on Demand (nVOD) system is detected as abnormal, a route changeover can be completed so that the program stream of a redundant nVOD server is delivered to the IP network.

Description

technical field [0001] The invention relates to the technical field of streaming media, in particular to an nVOD (multicast-based video on demand, Near Video On Demand) service redundancy backup method, device and system. Background technique [0002] With the rapid development of streaming video and audio technology and computer network technology, IP TV has become an important form of TV service. While providing high-definition digital TV signals, IP TV can also provide personalized services. In the current IP TV system, nVOD technology is adopted in many cases, that is, the business requirements similar to VOD are realized through multicasting. But nVOD is different from real VOD in essence. VOD sends video and audio streams to users who want to order in the form of unicast, so as to realize real video on demand services; while nVOD sends video and audio streams through multicast. Video and audio streams to the user end, which is similar to the way of network live broad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/173H04L29/06H04L69/40H04N5/00H04N7/24
CPCH04L65/4092H04N21/47208H04N21/6473H04L29/06469H04N21/2402H04L29/06523H04N21/64761H04L65/80H04N7/17336H04N21/6405H04N21/2393H04L65/613
Inventor 杨涛
Owner HUAWEI TECH CO LTD
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