CN208768176U

CN208768176U - A kind of LED display data Transmission system

Info

Publication number: CN208768176U
Application number: CN201821583408.6U
Authority: CN
Inventors: 许建忠; 李洪霞; 张旺
Original assignee: Shenzhen Jingshi Technology Co Ltd
Current assignee: Shenzhen Jingshi Technology Co Ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2019-04-19
Anticipated expiration: 2028-09-27

Abstract

The utility model discloses a kind of LED display data Transmission system, including controlling signaling module, Android processor, FPGA, HDMI input module, HDMI output module and kilomega network output module, the FPGA includes image processing module and communication module, the communication module passes through customized internal agreement, SPI sending and receiving data interface is realized according to standard SPI timing, it is communicated with Android processor, described image processing module is connect with external dynamic memory module, the external dynamic memory module stores control interface by external dynamic and image is deposited and read.The utility model the utility model passes through control signal and HDMI dual input, the function of selection and the switching to two-path video signal is realized in FPGA, video data is exported by two customized network interface protocol conversions to two-way gigabit network interface, it can be achieved that farther transmission range.

Description

A kind of LED display data Transmission system

Technical field

The utility model relates to display control program field, in particular to a kind of LED display data Transmission system.

Background technique

LED display is the flat-panel monitor made using light emitting diode (LED) as illuminator, LED display system The multimedia high-tech product that system is combined as light, electricity, sound, mainly experienced four developing stage, wherein forth generation true color More gray-scale display screens with red, blue, green for primary colours, can be with all colors of true reappearance nature, on chromaticity coordinates very To being more than natural colour range, various video images and colour advertisement, gorgeous color, fine and smooth comparison can be shown Degree, applying in exploitation field has fabulous vision impact, but nowadays the type of video source is more and more, video source Input port is but very single, and the data that system can not meet larger LED display at lower cost send demand.

Utility model content

In view of the problems of the existing technology, the utility model provides a kind of LED display data Transmission system.

To achieve the above object, the concrete scheme of the utility model is as follows:

A kind of LED display data Transmission system, including control signaling module, Android processor, FPGA, HDMI are defeated Enter module, HDMI output module and kilomega network output module, the control signaling module, Android processor, FPGA and gigabit Net output module is sequentially connected, and HDMI input module, FPGA and HDMI output module are sequentially connected.

Preferably, the control signaling module includes wire signal and wireless signal.

Preferably, the FPGA includes image processing module and communication module, and the communication module passes through customized inside Agreement is realized SPI sending and receiving data interface according to standard SPI timing, is communicated with Android processor.

Preferably, described image processing module is connect with external dynamic memory module, and the external dynamic memory module is logical It crosses external dynamic storage control interface image is deposited and read.

Preferably, the kilomega network output module includes two gigabit network interface interfaces.

Using the technical solution of the utility model, have the advantages that

The utility model realizes the selection to two-path video signal by control signal and HDMI dual input in FPGA With the function of switching, video data is exported by two customized network interface protocol conversions to two-way gigabit network interface, it can be achieved that more Remote transmission range.

Detailed description of the invention

Fig. 1 is the utility model functional block diagram.

Specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention will be further described.

Referring to Fig.1, the utility model provides a kind of LED display data Transmission system, including control signaling module 1, Android processor 2, FPGA_3, HDMI input 4 modules, HDMI exports 5 modules and kilomega network exports 6 modules, the control letter Number module 1, Android processor 2, FPGA_3 and kilomega network export 6 modules and are sequentially connected, HDMI input 4 modules, FPGA_3 and HDMI exports 5 modules and is sequentially connected.

The control signaling module 1 includes wire signal and wireless signal.

The FPGA_3 includes image processing module and communication module, the communication module by customized internal agreement, SPI sending and receiving data interface is realized according to standard SPI timing, is communicated with Android processor 2.

Described image processing module is connect with external dynamic memory module, and the external dynamic memory module passes through external dynamic State storage control interface is deposited and is read to image.

It includes two gigabit network interface interfaces that the kilomega network, which exports 6 modules,.

The working principle of the utility model are as follows:

The HDMI signal source of external input is directly connected to FPGA_3 image processing module, what Android processor 2 inputted Signal is also connected to FPGA_3 image processing module, and FPGA_3 image processing module is according to the HDMI signal and Android of input After 2 signal of processor carries out image procossing, one is directly exported by HDMI signal output, another is exported by kilomega network 6。

Control signal is connected on Android processor 2 by wired and wireless, and Android processor 2 will receive again Control signal be sent in FPGA_3 image processing module by SPI, FPGA_3 image processing module, which passes through, to be sended over Control signal, the vision signal that synthesis processing is sended over by Android processor 2 and HDMI input 4.

FPGA_3 image processing module is by carrying out external high-definition multimedia interface, that is, HDMI interface video source TDMS descrambles serioparallel exchange and regards at parallel rgb format of the vision signal and Android of parallel rgb format after processed Frequency signal carries out alternative selection, and passes through video shear module, stores control interface by external dynamic and posts image It deposits and reads, to realize image in the synchronization and image segmentation of different clock-domains；The video data divided is passed through 2 A customized network interface protocol conversion is exported and then is transmitted to gigabit network interface interface, to realize farther transmission range.It is another Aspect directly carries out the signal read out from external memory without over-segmentation and turns to scramble it after going here and there to switch to TMDS The HDMI interface of differential pair signal exports, and carries out video cascade or driving high-clear display.

FPGA_3 communication module by customized internal agreement, according to standard SPI timing realize SPI sending and receiving data interface with Android processor 2 is communicated, and after receiving the technical parameter that each link of image processing module needs, is passed for image procossing is arrived Module assists to complete the processing of entire video, while by two gigabit network interfaces, form a connecting link accept Android processor 2 with The communication of other systems forwards medium.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims

1. a kind of LED display data Transmission system, which is characterized in that including control signaling module, Android processor, FPGA, HDMI input module, HDMI output module and kilomega network output module, the control signaling module, Android processing Device, FPGA and kilomega network output module are sequentially connected, and HDMI input module, FPGA and HDMI output module are sequentially connected.

2. LED display data Transmission system according to claim 1, which is characterized in that the control signaling module packet Include wire signal and wireless signal.

3. LED display data Transmission system according to claim 1, which is characterized in that the FPGA includes at image Module and communication module are managed, the communication module realizes that SPI receives and dispatches number by customized internal agreement, according to standard SPI timing According to interface, communicated with Android processor.

4. LED display data Transmission system according to claim 3, which is characterized in that described image processing module with The connection of external dynamic memory module, the external dynamic memory module store control interface by external dynamic and post image It deposits and reads.

5. LED display data Transmission system according to claim 1, which is characterized in that the kilomega network output module Including two gigabit network interface interfaces.