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Data transmission method of LED display screen control system

A technology of LED display screen and data transmission method, which is applied to static indicators, instruments, etc., can solve the problems of low data redundancy and low efficiency, and achieve the effects of enhancing accuracy and reliability, improving utilization rate, and reducing risks

Inactive Publication Date: 2015-11-04
苏州宏展信息科技有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: to provide a data transmission method of the LED display control system, which solves the problem of low efficiency of data redundancy generated by the broadcast transmission number of the LED display control system in the prior art

Method used

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Experimental program
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Embodiment Construction

[0028] The structure and working process of the present invention will be further described below.

[0029] A data transmission method for an LED display control system, comprising the steps of:

[0030] Step 1. Send the video signal of the upper computer to the video processor for processing, and then send it to the sending card;

[0031] Step 2. The sending card packs and compresses the video signal and sends it to the signal distributor;

[0032] Step 3. The signal distributor sends the compressed package to the receiving card;

[0033] Step 4. The receiving card decompresses the received compressed package and judges whether the decompressed data package is correct. If it is correct, perform step 5. Otherwise, send an error flag and return to perform step 3;

[0034] Step 5, extracting the packet header of the data packet, obtaining the ID number of the data packet, performing image processing, and sending the processed video signal to the LED display screen correspondin...

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PUM

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Abstract

The invention discloses a data transmission method of an LED display screen control system. First, the video signal of a host computer is sent to a video processor for processing and then sent to a sending card; second, the video signal is packed for compression by the sending card and is sent to a signal distributor; the packed bag is sent to a receiver card by the signal distributor; then, the received packed bag is decompressed by the receiver card and the data packet after decompression is judged if correct or not by the receiver card, and if correct, the packet header of the data packet is extracted to obtain the ID number of the data packet and to perform image processing, and the processed video signal is sent to an LED display screen corresponding to the ID number, otherwise, an error identification is sent. According to the method, the received data packet can be effectively detected, and the broadcast data is prevented from being sent repeatedly if correct, therefore time and space are saved.

Description

technical field [0001] The invention belongs to the field of LED display screen control, and in particular relates to a data transmission method of an LED display screen control system. Background technique [0002] In the rapid development of today's modern information society, large-screen display has penetrated from commercial applications such as public information display to consumer multimedia applications. With the development of broadband networks, digital multimedia content will occupy the mainstream in the information world, and new large-screen display devices will replace traditional TV sets as the center for people to enjoy information and multimedia content. [0003] LED display control system (LED Display Control System), also known as LED display controller, LED display control card. It is the core component of the LED display screen. It is mainly responsible for receiving the picture and video display information from the computer serial port or DVI interfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
Inventor 冯方敏
Owner 苏州宏展信息科技有限公司
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