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Method and equipment for transmitting video data

A video data and video technology, applied in the field of multicast data transmission, can solve the problems of high video data forwarding pressure, increase system cost, affect user experience, etc., so as to reduce video data forwarding pressure, reduce network bandwidth, and reduce local congestion. the effect of risk

Inactive Publication Date: 2010-09-08
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the number of VTDUs configured is small, the video data forwarding pressure of each VTDU will be high, which will easily lead to local network congestion and affect user experience; if the number of VTDUs configured is too large, the system will be greatly increased. cost

Method used

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  • Method and equipment for transmitting video data
  • Method and equipment for transmitting video data
  • Method and equipment for transmitting video data

Examples

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Embodiment Construction

[0074] The present invention provides a method and equipment for transmitting video data. Utilizing the existence of a sub-network supporting multicast transmission in the monitoring network, a switching routing device (switch) receives the video data stream forwarded by VTDU, and transmits the video data stream through the above-mentioned sub-network. The data stream is multicast to the CU. Therefore, it not only reduces the data forwarding pressure of the VTDU, reduces the network bandwidth occupied by the VTDU when forwarding video data, but also reduces the number of VTDUs that need to be configured at the edge of the network, reducing the system cost. The present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0075] Firstly, the definitions of "first subnet" and "unicast-to-multicast capability" in this article are explained. In an IP network, switching and routing devices, including switching dev...

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Abstract

The invention provides a method and equipment for transmitting video data. In the method, route switching equipment in a monitoring network registers self subnet information to CMS which distributes multicast groups for video data flows and the route switching equipment sends the video data flows by means of multicast, thereby the video data flows can be received through adding corresponding multicast groups for users in subnets supporting multicast transmission. According to the method and the equipment of the invention, data forwarding pressure in VTDU can be reduced and simultaneously bandwidth needed for video data transmission is lowered.

Description

technical field [0001] The invention relates to a multicast data transmission technology in a monitoring network, in particular to a method and corresponding equipment for multicast transmission of video data in a monitoring network. Background technique [0002] Network video surveillance service is a telecommunications service that provides users with remote collection, transmission, storage and processing of images, alarm signals and other related information based on broadband network. FIG. 1 is a system architecture diagram of a video surveillance network in the prior art. The system consists of three parts: a monitoring front-end unit (PU, PeripheralUnit), a monitoring platform, and a client unit (CU, Client Unit). Each PU can include multiple cameras, respectively corresponding to multiple camera channels; the monitoring platform and Specifically, it consists of a central management server (CMS, Central Management Server), a video transfer distribution unit (VTDU, Vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/24H04L29/06H04N7/18
Inventor 王明辉
Owner NEW H3C TECH CO LTD