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A System for Flexible Scheduling of IP Multicast Streams

An IP multicast and multicast technology, applied in the TV field, can solve the problems of security broadcast task threat, inability to flexibly schedule transmission streams, etc., achieve good foresight and scalability, low system performance and network bandwidth requirements, and small changes Effect

Active Publication Date: 2020-12-15
GUANGZHOU DIGITAL MEDIA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, there may be thousands of arbitrary source multicast or specific source multicast traffic with different multicast addresses in the multicast network at the same time, and it is impossible to flexibly schedule and effectively monitor the transmission flow on each node in the system. Become a pain point in daily operation and maintenance, and pose a threat to safe broadcast tasks

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  • A System for Flexible Scheduling of IP Multicast Streams
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  • A System for Flexible Scheduling of IP Multicast Streams

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] Firstly, the application scenarios that the present invention can provide, such as flexible multicast scheduling, are introduced.

[0034] In the multicast network of the existing IP-based CATV front-end system, there may be thousands of arbitrary source multicast or specific source multicast traffic with different multicast addresses at the same time, but the existing technology cannot flexibly schedule each To effectively monitor the transport stream ...

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Abstract

The invention discloses a system for realizing flexible scheduling of IP multicast stream, which comprises an IP scheduling matrix connected in a bypass deployment mode or a straight deployment mode,a plurality of multicast network switches, a plurality of monitoring analyzers and a multicast source. The IP scheduling matrix is configured with at least one virtual matrix, which supports scheduling and distribution from any input stream to any output stream. The multicast network switch is used for receiving the IGMP membership report sent by the IP scheduling matrix and obtaining multicast data packets from the multicast source and returning the multicast data packets to the IP scheduling matrix. The IP scheduling matrix is used for judging whether the multicast data packet is the multicast traffic of the target multicast group, and processing the multicast data packet by decapsulating and re-encapsulating, or processing the multicast data packet by translating the network address; the IP scheduling matrix is used for judging whether the multicast data packet is the multicast traffic of the target multicast group or not. The monitoring analyzer is used to monitor IPTV network digital TV transmission, audio and video quality of service, and provides IP layer and MPEG-2 transport layer analysis, key frame decoding and quality of service analysis. The invention can realize the multicast multi-in and multi-out scheduling function.

Description

technical field [0001] The invention relates to the technical field of television, in particular to a system for realizing flexible scheduling of IP multicast streams. Background technique [0002] Domestic cable TV operators have gradually completed the IP transformation of the cable TV front-end system. Compared with the traditional ASI architecture, the IP-based cable TV front-end system has many advantages, especially in the automatic backup and switching of services and the expansion of new services and new functions. has obvious advantages. Most of the existing video multicast data is forwarded through the multicast network of the routing and switching equipment. The terminal declares itself to join a certain multicast group through the member joining message of the IGMP protocol to obtain the corresponding arbitrary source multicast or specific source multicast data. [0003] During the research and practice of the existing technology, the inventors of the present i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/6405H04N21/643H04N21/647
CPCH04N21/6405H04N21/64322H04N21/64723
Inventor 朱勤伟梁刚毅陈俊贤王国威陈晓峰周欣荣
Owner GUANGZHOU DIGITAL MEDIA GRP CO LTD
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