CN201403157Y - Picture element router for merging multi-projection image - Google Patents
Picture element router for merging multi-projection image Download PDFInfo
- Publication number
- CN201403157Y CN201403157Y CN2009201177319U CN200920117731U CN201403157Y CN 201403157 Y CN201403157 Y CN 201403157Y CN 2009201177319 U CN2009201177319 U CN 2009201177319U CN 200920117731 U CN200920117731 U CN 200920117731U CN 201403157 Y CN201403157 Y CN 201403157Y
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- router
- hdmi
- picture element
- dvi
- video frequency
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Abstract
The utility model discloses a picture element router for merging multi-projection image, which comprises four HDMI/DVI video frequency input interfaces, four HDMI/DVI video frequency output interfaces, an IO synchronizing interface, a USB programming interface, an electric erasable programmable ROM, an FPGA integrated circuit and a memory group RAM. The picture element router can be utilized to directly output digital video frequency images input by the standard HDMI/DVI to a plurality of projectors, merges images of a plurality of projectors into complete big screen images without seam lines,and in addition, the picture element router can be further utilized to do butterfly-shaped interlink, thereby countless video frequency input and output interfaces can be arranged in a big screen display screen.
Description
Technical field
The utility model relates to the seamless fusion hardware unit of a kind of embedded image, relates in particular to a kind of pixel router that many projected images merge that is used for.
Background technology
The display screen of super large is used widely in occasions such as the security monitoring command centre of public security, city management, fire-fighting, forest, production monitoring control centre, advertising message issue, stage background, video conferences.Fusion that many projected images are seamless shows that large-screen has complete seamless super large display screen, and project cost is low, the O﹠M cost is low, characteristics such as little take up room.Therefore, show that in the seamless fusion of the many projected images of many occasions large-screen is substituting traditional LED display curtain and DLP apace the seam Mosaic screen is arranged.
The super large display screen of current seamless fusion is all realized by fusion software basically.In order to make fusion software to be connected with application system, must spend a large amount of financial resources and manpower, develop various application programming interfaces; Fusion software need take computer CPU time, memory space in a large number when operation, and bus bandwidth; Before using fusion software, the user also needs usually operating personnel are giveed training, so that be familiar with new system; In addition, to different operating system platforms (as, Windows, Unix, Linux etc.) need the large screen-fused software of exploitation different editions.
The hardware of several fusions few in number on the market, not only prices are rather stiff, and the accuracy that projecting apparatus often needs accurately strict adjustment projecting apparatus to adjust requires in a pixel.It is very difficult wanting to reach this requirement.In display system, used under the situation of multirow (multilayer) projecting apparatus, may reach the accurate butt joint of a plurality of projection output images hardly.
The utility model content
At the deficiencies in the prior art, the utility model provides a kind of pixel router that many projected images merge that is used for.
The purpose of this utility model is achieved through the following technical solutions: a kind of pixel router that is used for many projected images fusions, and it comprises four road HDMI/DVI video input interfaces, four road HDMI/DVI video output interfaces, IO sync cap, USB DLL (dynamic link library), electrically erasable ROM, FPGA integrated circuit and memory set RAM; Wherein, four road HDMI/DVI video input interfaces, four road HDMI/DVI video output interfaces, IO sync cap, electrically erasable ROM and memory set RAM all link to each other with the FPGA integrated circuit; The USB DLL (dynamic link library) links to each other with electrically erasable ROM.
The invention has the beneficial effects as follows: the utility model is a kind of embedded hardware fusing device of employing ultra-large FPGA (field programmable gate array) integrated circuit: be used for the pixel router that many projected images merge.Utilize the utility model directly to output to a plurality of projectors to the HDMI/DVI picture signal of input, merge a plurality of projectors image and become no splicing seams, complete large-screen image.Thereby construct the seamless display screen of a ultrahigh resolution, oversize for the user.
Description of drawings
Fig. 1 is that the seamless fusion of many projected images shows schematic diagram, wherein, (a) is existing seamless projector display system schematic diagram, (b) is the automatic rectification error schematic diagram of the utility model;
Fig. 2 is the utility model pixel router structural representation;
Fig. 3 is that pixel router dish of the present utility model connects the expansion schematic diagram.
Embodiment
Further specify the utility model below in conjunction with drawings and Examples, it is more obvious that the purpose of this utility model and effect will become.
As shown in Figure 1, each rectangle frame is represented the projected area of a projecting apparatus.Shown in (a), in traditional fusion, the output image of all projectors all will accurately dock.And in the utility model, projector's output image does not need accurate butt joint.Shown in Fig. 1 (b), the frame that black dotted lines constitutes is represented displayable maximum region.When realizing image co-registration, the utility model is compared with the seamless fusion of tradition, to the installation of projector and output image metamorphopsic distortion require much loose.Obviously, so just simplified the work of installation, debugging and maintenance greatly.
As shown in Figure 3, the utility model is used for the pixel router that many projected images merge and comprises four road HDMI/DVI video input interfaces, four road HDMI/DVI video output interfaces, IO sync cap, USB DLL (dynamic link library), electrically erasable ROM, FPGA integrated circuit and memory set RAM.Wherein, four road HDMI/DVI video input interfaces, four road HDMI/DVI video output interfaces, IO sync cap, electrically erasable ROM and memory set RAM all link to each other with the FPGA integrated circuit, and the USB DLL (dynamic link library) links to each other with electrically erasable ROM.
Video image leaves among the memory set RAM from four road HDMI/DVI video input interfaces input FPGA integrated circuit, and the FPGA integrated circuit can adopt the product XC4VLX40-FF1148 of U.S. Xilinx company.Control Parameter and control algolithm program can be input to electrically erasable ROM by the USB DLL (dynamic link library), thereby realize the programming to the FPGA integrated circuit, realize continuous, the real-time distortion of input picture is proofreaied and correct in electrically erasable ROM; Proofread and correct good image and leave among the memory set RAM, and export by four road HDMI/DVI video output interfaces.
Prior art is under the framework of bus, and the bandwidth of output image is fixed.Connect expansion and utilize the utility model can carry out butterfly, Fig. 3 shows and uses the embodiment that 4 pixel routers of the present utility model carry out the butterfly expansion, wherein, four road HDMI/DVI video output interfaces of first pixel router link to each other with four road HDMI/DVI video input interfaces of second pixel router, four road HDMI/DVI video output interfaces of the 3rd pixel router link to each other with four road HDMI/DVI video input interfaces of the 4th pixel router, the IO sync cap of the 3rd pixel router and second pixel router links to each other, and the IO sync cap of first pixel router and the 4th pixel router links to each other.The system that uses these four pixel routers formations has just had 8 HDMI/DVI video input interfaces and 8 HDMI/DVI video output interfaces.The utility model pixel router links manyly more, and then the bandwidth of system's output image is just big more.Theoretically, utilize the utility model can contain unlimited video input and output interface.
Claims (1)
1, a kind of pixel router that is used for many projected images fusions, it is characterized in that it comprises four road HDMI/DVI video input interfaces, four road HDMI/DVI video output interfaces, IO sync cap, USB DLL (dynamic link library), electrically erasable ROM, FPGA integrated circuit and memory set RAM; Wherein, described four road HDMI/DVI video input interfaces, four road HDMI/DVI video output interfaces, IO sync cap, electrically erasable ROM and memory set RAM all link to each other with the FPGA integrated circuit; Described USB DLL (dynamic link library) links to each other with electrically erasable ROM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201177319U CN201403157Y (en) | 2009-04-16 | 2009-04-16 | Picture element router for merging multi-projection image |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201177319U CN201403157Y (en) | 2009-04-16 | 2009-04-16 | Picture element router for merging multi-projection image |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201403157Y true CN201403157Y (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201177319U Expired - Fee Related CN201403157Y (en) | 2009-04-16 | 2009-04-16 | Picture element router for merging multi-projection image |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201403157Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271223A (en) * | 2011-01-17 | 2011-12-07 | 深圳市保千里电子有限公司 | Large screen display and implementation method thereof |
| CN102270421A (en) * | 2011-01-17 | 2011-12-07 | 深圳市保千里电子有限公司 | System for joining display units and realizing method thereof |
| CN103037189A (en) * | 2012-12-05 | 2013-04-10 | 江苏清投视讯科技有限公司 | Method to achieve integrate output of large-size screen video images through much projection |
-
2009
- 2009-04-16 CN CN2009201177319U patent/CN201403157Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271223A (en) * | 2011-01-17 | 2011-12-07 | 深圳市保千里电子有限公司 | Large screen display and implementation method thereof |
| CN102270421A (en) * | 2011-01-17 | 2011-12-07 | 深圳市保千里电子有限公司 | System for joining display units and realizing method thereof |
| CN102270421B (en) * | 2011-01-17 | 2012-09-19 | 深圳市保千里电子有限公司 | System for joining display units and realizing method thereof |
| CN103037189A (en) * | 2012-12-05 | 2013-04-10 | 江苏清投视讯科技有限公司 | Method to achieve integrate output of large-size screen video images through much projection |
| CN103037189B (en) * | 2012-12-05 | 2016-03-09 | 江苏清投视讯科技有限公司 | A kind of method realizing multiple projections overall output large-size screen monitors frame video image |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |