CN208768177U

CN208768177U - A kind of LED display multichannel data transmission system

Info

Publication number: CN208768177U
Application number: CN201821583410.3U
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 multichannel data transmission system, including sequentially connected video signal input module, Android processor, FPGA and vision signal output module, the video signal input module includes the cable network connecting with Android processor, wireless network, USB flash disk, bluetooth and external ATV signal, HDMI signal and DTV signal, and the vision signal output module includes the HDMI output module and kilomega network output module connecting with FPGA.The utility model supports a plurality of types of video signal source inputs, the function of selection and the switching to multi-channel video signal is realized in FPGA, instead of expensive video montaging device, it reduces costs, video data is exported by customized network interface protocol conversion to gigabit network interface, it can be achieved that farther transmission range.

Description

A kind of LED display multichannel data transmission system

Technical field

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

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

A kind of LED display multichannel data transmission system, including sequentially connected video signal input module, Android Processor, FPGA and vision signal output module, the video signal input module include connecting with Android processor Cable network, wireless network, USB flash disk, bluetooth and external HDMI signal, the vision signal output module include connecting with FPGA The HDMI output module and kilomega network output module connect.

Preferably, the FPGA includes image processing module and communication module, and the communication module is according to standard SPI timing It realizes SPI sending and receiving data interface, is communicated with Android processor.

Preferably, the cable network and wireless network also send control signal, the control letter to Android processor It number is sent in FPGA image processing module by SPI sending and receiving data interface, the FPGA image processing module is by being transmitted across The control signal come, the vision signal that synthesis processing is transmitted by 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 four gigabit network interface interfaces.

Preferably, the video signal input module further includes external ATV signal and DTV signal, the HDMI signal For 4KHDMI signal, the HDMI output module is the output of 4KHDMI signal source.

Preferably, the kilomega network output module includes 16 gigabit network interface interfaces.

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

(1), a plurality of types of video signal source inputs are supported；

(2), the function that selection and the switching to multi-channel video signal are realized in FPGA, instead of expensive video Splicer reduces costs；

(3), video data is exported by customized network interface protocol conversion to gigabit network interface, it can be achieved that farther transmission distance From.

Detailed description of the invention

Fig. 1 is the functional block diagram of the utility model embodiment one；

Fig. 2 is the functional block diagram of the utility model embodiment two.

Specific embodiment

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

Referring to figs. 1 to Fig. 2, the utility model provides a kind of LED display multichannel data transmission system, including successively connects Video signal input module, Android processor 2, FPGA_3 and the vision signal output module connect, the vision signal input Module includes the cable network 101 connecting with Android processor 2, wireless network 102, USB flash disk 103, bluetooth 104 and external HDMI signal 105, the vision signal output module includes the HDMI output module 402 and kilomega network connecting with FPGA_3 Output module 401.

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

The cable network 101 and wireless network 102 also send control signal, the control letter to Android processor 2 It number is sent in FPGA_3 image processing module by SPI sending and receiving data interface, the FPGA_3 image processing module passes through hair The control signal brought, the vision signal that synthesis processing is transmitted by 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.

The kilomega network output module 401 includes four gigabit network interface interfaces.

The video signal input module further includes external ATV signal 106 and DTV signal 107, the HDMI signal 105 be 4KHDMI signal 105, and the HDMI output module 402 is the output of 4KHDMI signal source.

The kilomega network output module 401 includes 16 gigabit network interface interfaces.

The working principle of the utility model are as follows:

(1), vision signal: the view transmitted by cable network 101, wireless network 102, USB flash disk 103 and bluetooth 104 Frequency file and external ATV signal 106, HDMI signal 105 and DTV signal 107, are decoded by Android processor 2 Vision signal, is transferred to FPGA_3 image processing module, FPGA_3 image processing module will it is processed after vision signal one It is transferred out by HDMI output module 402, another is transferred out by kilomega network output module 401；

(2), signal: the control being transferred on Android processor 2 by cable network 101 and wireless network 102 is controlled Signal, then be sent in FPGA_3 image processing module by SPI mouthfuls, FPGA_3 image processing module passes through the control sended over Signal processed, the vision signal that synthesis processing is transmitted by Android processor 2；

(3), it FPGA_3 image processing module: is connect after Android processor 2 is processed by double groups of low-voltage differential signals Mouth is the vision signal that LVDS interface transmits, after progress serioparallel exchange and LVDS are decoded as parallel rgb video format, Video data is stored in external dynamic memory module and is read by octuple data rate dynamic memory control interface, realizes figure As the synchronization and image segmentation in different clock-domains, the video data divided is passed through customized network interface protocol conversion to thousand Million net outputs 401, to realize farther transmission range；On the other hand, the signal read out from external dynamic memory module, It is directly carried out without over-segmentation and scrambles the HDMI interface output for switching to TMDS differential pair signal to it after turning string, carry out videl stage Connection or driving high-clear display, export fully synchronized with network interface video.

(4), FPGA_3 communication module: FPGA_3 realizes SPI sending and receiving data interface according to standard SPI timing, with Android Processor 2 is communicated, and after receiving the technical parameter that each link of image processing module needs, is passed for image processing module, association is arrived It helps and completes entire video processing, while by gigabit network interface, forming a connecting link and accepting Android processor 2 and other systems Communication forwarding 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 multichannel data sends system, which is characterized in that input mould including sequentially connected vision signal Block, Android processor, FPGA and vision signal output module, the video signal input module include and at Android Cable network, wireless network, USB flash disk, bluetooth and the external HDMI signal of device connection are managed, the vision signal output module includes The HDMI output module and kilomega network output module being connect with FPGA.

2. LED display multichannel data according to claim 1 sends system, which is characterized in that the FPGA includes figure As processing module and communication module, the communication module realizes SPI sending and receiving data interface according to standard SPI timing, with Android Processor is communicated.

3. LED display multichannel data according to claim 2 sends system, which is characterized in that the cable network and Wireless network also sends control signal to Android processor, and the control signal is sent to by SPI sending and receiving data interface In FPGA image processing module, the FPGA image processing module passes through the control signal that sends over, synthesis processing by The vision signal that Android processor transmits.

4. LED display multichannel data according to claim 3 sends system, which is characterized in that described image handles mould Block is connect with external dynamic memory module, the external dynamic memory module by external dynamic store control interface to image into Row deposit and reading.

5. LED display multichannel data according to claim 4 sends system, which is characterized in that the kilomega network output Module includes four gigabit network interface interfaces.

6. LED display multichannel data described in any one sends system according to claim 1~4, which is characterized in that described Video signal input module further includes external ATV signal and DTV signal, and the HDMI signal is 4KHDMI signal, described HDMI output module is the output of 4KHDMI signal source.

7. LED display multichannel data according to claim 6 sends system, which is characterized in that the kilomega network output Module includes 16 gigabit network interface interfaces.