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Video crossing method and master control device

A main control device and video technology, applied in the field of communication, can solve the problems of no scalability, difficult implementation, limited number of video crossover channels, etc.

Inactive Publication Date: 2013-05-15
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current difficulty in implementing this video crossover method is that the number of video crossover channels is limited. It is currently known that there are commercial crossover chips on the market with a maximum size of 72*72. If it is necessary to make a 200*200 video crossover, this method is difficult to implement.
For the way of using FPAG to realize video interleaving, the video interleaving depends on the SERDES channels of each logic chip. Although multiple FPAGs can realize video interleaving such as 200*200, the implementation algorithm is very complicated and the cost is also high. Abnormally high; currently only some small-scale crossovers are implemented using FPGAs
[0004] The above two video crossover implementation methods also have a common disadvantage, that is, the number of video crossover channels is fixed, such as 20*20 video crossover, if the system is to be expanded to 21*21, it will not work, that is, there is no scalability

Method used

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  • Video crossing method and master control device

Examples

Experimental program
Comparison scheme
Effect test

no. 2 example

[0075] see figure 2 The second embodiment of a video interleaving method provided by the embodiment of the present invention specifically includes:

[0076] 201. Make statistics on the UWM transmitting module in the video input board;

[0077] 202. Perform statistics on the UWM receiving module in the video output board;

[0078] In this embodiment, the functions of step 201 and step 203 are to prepare for step 203. The main control device can count the number of video input boards and video output boards. It should be noted that each video input board can have 4 video input boards. One UWB transmitting module, each video output board can have four UWB receiving modules.

[0079] It should be noted that step 201 and step 202 are in no particular order, and the UWM transmitting module in the video input board may be counted first, or the UWM receiving module in the video output board may be counted first, which is not specifically limited here.

[0080] It should be noted t...

no. 3 example

[0098] see image 3 The third embodiment of a video interleaving method provided by the embodiment of the present invention specifically includes:

[0099] 301. Make statistics on the UWM transmitting module in the video input board;

[0100] 302. Perform statistics on the UWM receiving module in the video output board;

[0101] 303. Determine the video crossover scale;

[0102] 304. Assign an ID number to each UWM transmitting module and UWM receiving module;

[0103] 305. Receive a video cross request carrying the ID number of the destination device;

[0104] 306. Obtain the ID of the target UWM transmitting module and the ID of the target UWM receiving module in receiving the video cross request;

[0105] In this embodiment, steps 301 to 306 are completely the same as steps 201 to 206 in the second embodiment, and will not be repeated here.

[0106] 307. Determine whether the current video sending channel is idle;

[0107] 308. If the current video transmission channe...

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PUM

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Abstract

The embodiment of the invention discloses a video crossing method and a master control device. The number of the paths of video cross can be increased or decreased as needed to enable the crossing scale of a video to be expanded limitlessly. The method disclosed by the embodiment of the invention comprises the following steps: receiving video cross request carrying an identity (ID) number of target equipment; acquiring the ID number of the target equipment; sending a video cross instruction to the target equipment according to the ID number, wherein the target equipment comprises ultra wide band (UWB) transmitting modules and UWB receiving modules. Users can increase or decrease the number of the UWB transmitting modules and the UWB receiving modules as needed, so that the number of the paths of video cross is increased or decreased as needed to enable the crossing scale of the video to be expanded limitlessly.

Description

technical field [0001] The invention relates to the communication field, in particular to a video interleaving method and a main control device. Background technique [0002] At present, there are roughly two video interleaving methods used by most video matrices. One is to use a dedicated video crossover chip, and the other is to use a high-speed SERDES implementation of a large-scale logic chip (FPGA). [0003] Using a dedicated video crossover chip to realize video crossover, the number of video crossover channels depends on the scale of the video crossover chip used, and at the same time, a video crossover circuit board needs to be specially designed in the video crossover system to control the direction of the video crossover through the MCU . The current difficulty in implementing this video crossover method is that the number of video crossover channels is limited. It is currently known that there are commercial crossover chips on the market with a maximum size of 72...

Claims

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Application Information

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IPC IPC(8): H04N5/268H04N7/26
Inventor 林文富黄思源景博
Owner GUANGDONG VTRON TECH CO LTD
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