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Multicast signal addressing method, multicast signal transmission method, multicast signal addressing device, multicast signal transmission device and switch

An addressing method and signal technology are applied in the fields of transmission methods and devices, multicast signal addressing methods, and switches, and can solve problems such as transmission distance limitation and achieve the effect of efficient multicast signal transmission.

Active Publication Date: 2019-12-06
CHINA CENTRAL TELEVISION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

4K ultra-high-definition signals transmit four times the amount of data compared to high-definition signals, and the use of higher-bandwidth coaxial cables for transmission has limitations on transmission distances

Method used

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  • Multicast signal addressing method, multicast signal transmission method, multicast signal addressing device, multicast signal transmission device and switch
  • Multicast signal addressing method, multicast signal transmission method, multicast signal addressing device, multicast signal transmission device and switch
  • Multicast signal addressing method, multicast signal transmission method, multicast signal addressing device, multicast signal transmission device and switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] figure 1 A flow chart of a multicast signal addressing method according to Embodiment 1 of the present application is shown.

[0023] Such as figure 1 As shown, the multicast signal addressing method according to Embodiment 1 of the present application includes the following steps:

[0024] S101. Acquire a signal stream to be transmitted.

[0025] During specific implementation, the signal stream to be transmitted may be video and audio signals, data signals, clock signals, etc.

[0026] During specific implementation, before S101, the signal flow may be classified in advance. Specifically, first determine the signal multicast address range, and give a LAN multicast address range according to the business scenario; then, in order to realize the classified management of different protocols and different signal types, and the configuration of routing policies and security policies, the 4K non-compression Classification of multicast signals for audio over IP systems. ...

Embodiment 2

[0045] figure 2 A method flowchart of the multicast signal transmission method according to Embodiment 2 of the present application is shown.

[0046] Such as figure 2 As shown, the multicast signal transmission method according to Embodiment 2 of the present application includes:

[0047] S201. Address the signal stream by using an addressing method.

[0048] In specific implementation, the implementation of this step can refer to the implementation of the multicast addressing method in Embodiment 1 of the present application, and the repetition will not be repeated.

[0049] S202. Transmit the signal stream in a multicast manner according to the obtained address.

[0050] In specific implementation, the implementation of this step can refer to the implementation of the multicast transmission technology in the prior art, which will not be repeated here.

[0051] Using the multicast signal transmission method provided in the embodiment of the present application, before ...

Embodiment 3

[0055] image 3 A schematic structural diagram of a multicast signal addressing device according to Embodiment 3 of the present application is shown.

[0056] Such as image 3 As shown, the multicast signal addressing device 300 according to Embodiment 3 of the present application includes:

[0057] The obtaining unit 301 is used to obtain the signal flow to be transmitted; the determination unit 302 is used to determine the multicast identifier, signal protocol type, signal generation device and port, and signal service type of the signal flow; the addressing unit 303 is used to The multicast identifier, signal protocol type, signal generating device and port, and signal service type of the flow are addressing of the signal flow.

[0058] In a specific implementation, the signal protocol type includes the protocol name of the signal flow, master / backup status, and one or more of the following: data type, transmission type, video signal type, video bandwidth, or audio channe...

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Abstract

The embodiment of the invention provides a multicast signal addressing method, a multicast signal transmission method, a multicast signal addressing device, a multicast signal transmission device anda switch. The addressing method comprises the following steps: acquiring a signal stream to be transmitted; determining a multicast identifier, a signal protocol type, a signal generation device and port, and a signal service type of the signal flow; and according to the multicast identifier, the signal protocol type, the signal generation equipment, the port of the signal flow and the signal service type, addressing the signal flow. By adopting the scheme in the invention, efficient multicast signal transmission can be realized.

Description

technical field [0001] The present application relates to the field of broadcasting and television, in particular to a multicast signal addressing method, transmission method and device, and a switch. Background technique [0002] In the field of radio and television production and broadcasting, high-definition and standard-definition usually use SDI coaxial cables to transmit uncompressed signals. 4K ultra-high-definition signals transmit four times as much data as high-definition signals, so the use of higher-bandwidth coaxial cables for transmission has limitations on transmission distances. In order to solve this problem, in recent years, a method of using IP encapsulation and transmission has emerged in the aspect of 4K ultra-high-definition transmission. [0003] However, the inventors found that when using IP encapsulation to transmit uncompressed signals, there are many types of signal protocols involved, for example, the SMPTE2022-6 standard that integrates video a...

Claims

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Application Information

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IPC IPC(8): H04N21/643H04N21/6405H04N5/268
CPCH04N5/268H04N21/6405H04N21/64322
Inventor 宋蔚商同陈策明刘晶晶张娟邓楠郭瑾吴俊刘庆雨张辉丁姝李星辰何一枝
Owner CHINA CENTRAL TELEVISION