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Multi-channel video data transmission method and device based on GT interface

A video data transmission and multi-channel technology, applied in the field of data transmission, can solve the problems of single-channel transmission efficiency not meeting performance requirements, distribution, reorganization, etc., to avoid jitter offset and flicker screen, increase cost, and improve display quality Effect

Active Publication Date: 2021-04-13
NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned background technology and provide a multi-channel video data transmission method and device based on the GT interface, so that it solves the problem that the single-channel transmission efficiency cannot meet the performance requirements and the traditional multi-channel video data transmission Issues that may arise in the distribution, reassembly, and frame synchronization of

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  • Multi-channel video data transmission method and device based on GT interface
  • Multi-channel video data transmission method and device based on GT interface
  • Multi-channel video data transmission method and device based on GT interface

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0027] see figure 1 , the present invention is based on the multi-channel video data transmission method of GT interface, comprises the steps:

[0028] Step 1, the data sending end, according to the line field information of the collected parallel video signal, calculate the line number where each line of valid video data is located;

[0029] Step 2. Write each row of valid video data together with the row number of the row of data, the number of valid data, and the custom feature code into the buffer. In order to facilitate the pipeline operation, a ping-pong cache mechanism is adopted;

[0030] Step 3, after the control module recognizes the line synchronization signal, the module starts reading the cache;

[0031] Step 4, the control module sequentially reads...

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Abstract

The invention discloses a multi-channel video data transmission method based on a GT interface. The method comprises the following steps: 1, counting the line number of video data; 2, writing the video data into a buffer; 3, starting synchronous transmission of M channels; 4, receiving data according to K code feature words, and storing the video data into a buffer; 5, starting the identification of the characteristic character of one channel; 6, starting synchronous reading of M channel caches; and 7, splicing the processing data, and recovering the data of each video pixel point one by one. The invention further discloses a multi-channel video data transmission device based on the GT interface. The multi-channel video data transmission device comprises an acquisition statistics unit; an information writing unit; a synchronization signal reading and sending unit; a data receiving starting unit; a control module triggering unit; a synchronous reading unit; and a pixel point recovery unit. According to the method, distribution and recombination of the video data are achieved, video frame synchronization is achieved through the method, and the method can be widely applied to the field of video data transmission.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to a GT interface-based multi-channel video data transmission method and device. Background technique [0002] With the rise of big data and the rapid development of information technology, data transmission has higher and higher requirements for bus bandwidth. The development of parallel transmission technology is subject to difficulties in timing synchronization, serious signal offset, weak anti-interference ability and high design complexity. hindered by a series of problems. Compared with parallel transmission technology, serial transmission technology has fewer pins, strong scalability, point-to-point connection, and can provide higher bandwidth than parallel transmission, so it has been widely used in the field of embedded high-speed transmission. [0003] In the invention patent application number 201410656702.5 of the State Intellectual Property Office, a custom GTX serial ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/12
CPCH04N7/12
Inventor 龙小军郭浩万凯张正华
Owner NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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