Graphic synchronization device and synchronization method in computer cluster tiled display system

A computer cluster, splicing display technology, applied in the direction of digital output to display equipment, TV system components, image communication, etc., can solve the problems of low reliability, poor anti-interference, high research and development costs, and improve system reliability. , the effect of strong anti-interference ability and low interface cost

Active Publication Date: 2015-11-04
北京同步风云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a graphics synchronization device and synchronization method in a computer cluster splicing display system, which can solve the problems of poor anti-interference, low reliability, and high research and development costs in the prior art

Method used

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  • Graphic synchronization device and synchronization method in computer cluster tiled display system
  • Graphic synchronization device and synchronization method in computer cluster tiled display system
  • Graphic synchronization device and synchronization method in computer cluster tiled display system

Examples

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Embodiment 1

[0038] figure 1 It shows a schematic structural diagram of a graphics synchronization device in a computer cluster splicing display system according to Embodiment 1 of the present invention; figure 1 As shown, it includes: N node synchronizers 10, N FIFO memories 20 and N node host computers 30, the N node synchronizers 10 are connected by CAN bus, and each node synchronizer 10 is connected to each node host computer 30 is connected through RS-232 interface 302, wherein,

[0039] Each node synchronizer 10 is used to receive the graphics signal output by the node host computer 20, and convert the graphics signal into a graphics data stream, write the graphics data stream into the FIFO memory 20 according to the synchronous receiving logic, and according to the synchronous output logic, based on The system clock signal and horizontal and vertical synchronous signals read out the graphic data stream from the FIFO memory 20, and convert the graphic data stream into graphic signal...

Embodiment 2

[0048] figure 2 A schematic structural diagram of a graphics synchronization device in a computer cluster splicing display system according to Embodiment 2 of the present invention is shown, as shown in figure 2 As shown, when the node synchronizer 10 is a control node synchronizer, the corresponding node host computer 30 is a control node host computer, and the remaining N-1 node synchronizers 10 are display node synchronizers, and the corresponding node The host computer 10 is a display node host computer, and the display node synchronizer communicates with the control node synchronizer through the CAN bus. After the control node synchronizer 10 receives the start command from the control node host computer 30, when it reaches the sending threshold, it also To broadcast start command to CAN bus.

[0049] Wherein, the node synchronizer 10 is provided with a CAN bus transceiver module 102 for receiving commands from the CAN bus or sending commands to the CAN bus.

[0050] ...

Embodiment 3

[0052] image 3 A schematic structural diagram of a graphics synchronization device in a computer cluster splicing display system according to Embodiment 3 of the present invention is shown, as shown in image 3 As shown, the clock signal and horizontal and vertical synchronization signals in the system are generated based on the reference video signal by the timing generation module 104 in the node synchronizer 10, wherein the timing generation module 104 includes: a video synchronization separation unit 1042 and a phase-locked loop 1044, of which:

[0053] A video synchronization separation unit 1042, configured to separate a horizontal timing signal and a vertical timing signal of the reference video signal from the reference video signal;

[0054] The phase-locked loop 1044 is used to generate a pixel clock signal and a horizontal and vertical synchronous signal in accordance with the output graphic format whose frequency and phase are locked with the horizontal timing si...

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Abstract

The invention provides a graphic synchronization device in a computer cluster tiled display system. The graphic synchronization device comprises N node synchronizers, N FIFO memories and N node upper computers, wherein the N node synchronizers are connected through a CAN bus; each node synchronizer is connected with each node upper computer through an RS-232 interface; each node synchronizer receives a graphic signal output by the node upper computer and converts the graphic signal into a graphic data stream; the graphic data is written into the FIFO memories according to a synchronous receiving logic; and the graphic data stream is read out of the FIFO memories and output to a display device based on a clock signal as well as horizontal and vertical synchronous signals of the system according to a synchronous output logic. The invention further discloses a graphic synchronization method in the computer cluster tiled display system. According to the technical scheme of the invention, the frame rate of each graphic signal output to the display system is accurately the same as the phase of the synchronous signal, and the whole output picture of the system is smooth and tear-free.

Description

technical field [0001] The invention relates to the field of computer graphics processing, and more specifically, to a graphics synchronization device and a synchronization method in a computer cluster splicing system. Background technique [0002] In recent years, in the fields of virtual reality, engineering design, and geospatial information visualization, more and more systems use multi-monitors or multi-projectors to display ultra-high-resolution, ultra-large-area graphics. Such systems often require high data processing capabilities and graphics processing capabilities. Computer cluster systems can provide the high performance required by such systems, and distribute the task of generating ultra-high-resolution graphics on multiple computers to complete. The cluster system also has the characteristics of scalability and modularization, and has high flexibility and high cost performance. In these systems, a key problem that needs to be solved is, if the task of ultra-h...

Claims

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Application Information

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IPC IPC(8): G06F3/14H04N5/04
Inventor 王海洋
Owner 北京同步风云科技有限公司
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