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Video processor and backboard communication method

A video processor and backplane technology, applied in the field of backplane communication and video processor, can solve the problems of low communication rate and reduce product performance, and achieve the effect of efficient transmission

Active Publication Date: 2018-01-30
PIXELHUE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The control board sends broadcast commands, and each sub-card (input board, output board) selects according to the address, feeds the data back to the bus, and then the control board visits in turn. These communication methods often have a low communication rate. This greatly reduces the performance of the product

Method used

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  • Video processor and backboard communication method
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  • Video processor and backboard communication method

Examples

Experimental program
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no. 1 example

[0022] Such as Figure 1A As shown, a video processor provided by the first embodiment of the present invention mainly includes: a video input processing device 121, a video output processing device 131, a main control device 141, and a backplane device 10; wherein, the backplane device 10 includes: Matrix switching module 11, video input processing device connection port 12, video output processing device connection port 13, main control device connection port 14, expansion device connection port 15 and programmable logic device 16; matrix switching module 11 is connected to video input processing device Between the connection port 12 and the video output processing device connection port 13, the matrix switching module 11 is also connected to the main control device connection port 14 and the expansion device connection port 15; the programmable logic device 16 is connected to the main control device connection port 14 and the expansion device connection port 15. Connect the ...

no. 2 example

[0035] Such as figure 2 As shown, it is a backplane communication method provided by the second embodiment of the present invention. The backplane communication method is suitable for the video processor in the first embodiment mentioned above. For the specific function details of the video processor, please refer to the aforementioned The description in the first embodiment will not be repeated here; the backplane communication method mainly includes the steps:

[0036] S11: the backplane device 10 receives data from the second interface circuit 24 of the main control device 141 via the main control device connection port 14;

[0037] S13: the main control device connection port 14 transmits the data to the programmable logic device 16 on the backplane device 10;

[0038] S15: the programmable logic device 16 passes the data through the first Ethernet physical layer transceiver group 17 and the second Ethernet physical layer transceiver group 18 through the video input proc...

no. 3 example

[0043] Such as image 3 As shown, a video processor 30 provided by the third embodiment of the present invention includes: a video input processing device 32, a video output processing device 33, a main control device 34, an expansion device 35, a matrix switching module 31 and a programmable logic Device 36; matrix switching module 31 connects video input processing device 32, video output processing device 33 and expansion device 35; programmable logic device 36 connects expansion device 35, and connects video input processing through first Ethernet physical layer transceiver group 37 The device 32 and the video output processing device 33 are connected through a second Ethernet physical layer transceiver group 38 . Matrix switch module 31 for example comprises high-speed matrix switch chip like CrossPoint Switch chip etc.; Video input processing device 32 for example comprises a plurality of video input processing devices 321; Video output processing device 33 for example c...

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PUM

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Abstract

The embodiment of the invention discloses a video processor comprising a video input processing device, a video output processing device, a master control device and a backboard device. The backboarddevice comprises a matrix switching module, a video input processing device connecting port, a video output processing device connecting port, a master control device connecting port, an extension device connecting port and a programmable logic device. The programmable logic device is connected with the master control device connecting port and the extension device connecting port and connected with the video input processing device connecting port through a first ethernet physical layer transceiver group and connected with the video output processing device connecting port through a second ethernet physical layer transceiver group. The invention also discloses a backboard communication method. The communication rate can be enhanced and point-to-point communication can be realized.

Description

technical field [0001] The invention relates to the technical field of video display, in particular to a video processor and a backplane communication method. Background technique [0002] In the field of video display technology, when boards such as input, output, and control interact through the backplane, it is necessary to design a certain communication method on the backplane to achieve this. At present, the more common backplane communication method usually adopts matrix switching chip + ARM or MCU, generally based on RS485, SPI, I2C and other protocols for transmission, and adopts one-to-many communication method. The control board sends broadcast commands, and each sub-card (input board, output board) selects according to the address, feeds the data back to the bus, and then the control board visits in turn. These communication methods often have a low communication rate. This greatly reduces the performance of the product. Contents of the invention [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262H04N5/268H04N5/765
Inventor 梁伟周晶晶王伙荣
Owner PIXELHUE TECH LTD
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