CN107071361A - A kind of mosaic screen synchronizing video data display methods - Google Patents
A kind of mosaic screen synchronizing video data display methods Download PDFInfo
- Publication number
- CN107071361A CN107071361A CN201710264836.6A CN201710264836A CN107071361A CN 107071361 A CN107071361 A CN 107071361A CN 201710264836 A CN201710264836 A CN 201710264836A CN 107071361 A CN107071361 A CN 107071361A
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- CN
- China
- Prior art keywords
- vsync
- main mcu
- display unit
- video
- mosaic screen
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
A kind of mosaic screen synchronizing video data display methods.It is interlace VGA to configure modulus conversion chip output format, is exported by parity field；Main MCU receiving terminals pattern of the input is configured for VGA；The chip for merging odd field VSYNC, idol field VSYNC effect is sealed between modulus conversion chip VSYNC and main MCU VSYNC, the chip is that monostable flipflop or d type flip flop add one and door；Main MCU is swapped after receiving whole frame video data to it；Identical EDID data are write to each output port of selected display unit video card；Each output port of video card is numbered；Main MCU distributes to the data syn-chronization received the video card of each display unit.The inventive method makes main MCU to have received the video data of entire picture with single, is not in picture interim card, situation about losing so as to realize that the synchronization video of each display unit of mosaic screen is shown.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of mosaic screen synchronizing video data display methods.
Background technology
Mosaic screen is a complete liquid crystal splicing display unit, can be used separately as display, again can be with liquid
Crystalline substance is spliced into jumbotron and used.According to different use demands, the variable big changeable large-size screen monitors function that can also diminish is realized：Single screen point
Cut display, single screen individually to show, be combined display, full frame liquid crystal-spliced, portrait layout and show, the optional compensation of framing mask or screening
Lid.
In video monitoring system is carried out, mosaic screen can carry out the display of single picture, can also carry out overall picture
It has been shown that, because mosaic screen needs display monitoring picture to carry out video integration again, therefore when can usually run into overall picture display, respectively
The display of display unit is asynchronous, and display not in time, cause picture interim card, lose situation occur.
The content of the invention
A kind of mosaic screen synchronous display method provided in an embodiment of the present invention, in order to solve to be asked present in background technology
Topic, technical solution of the present invention is as follows：
A kind of mosaic screen synchronizing video data display methods, including：
It is interlace VGA to configure modulus conversion chip output format, is exported by parity field；
Main MCU receiving terminals pattern of the input is configured for VGA；
The core for merging odd field VSYNC, idol field VSYNC effect has been sealed between modulus conversion chip VSYNC and main MCU VSYNC
Piece, the chip is that monostable flipflop or d type flip flop add one and door；
Main MCU is swapped after receiving whole frame video data to it；
Identical EDID data are write to each output port of selected display unit video card；
Each output port of video card is numbered according to the display unit of mosaic screen；
Main MCU distributes to the data syn-chronization received the video card of each display unit.
The inventive method writes identical EDID data to each output port of selected video card, to each defeated of video card
Exit port is numbered according to the display unit of mosaic screen, and seals in the HSYNC numbers of rear each VSYNC after monostable flipflop
One times is added, by being originally 240, increases as 480, main MCU has been received the video data of entire picture with single,
Be not in picture interim card, situation about losing so as to realize that the synchronization video of each display unit of mosaic screen is shown.
Embodiment
A kind of mosaic screen synchronizing video data display methods provided in an embodiment of the present invention, its scheme is as follows：
A kind of mosaic screen synchronizing video data display methods, including：
1st, configuration modulus conversion chip output format is that interlace VGA, i.e. VGA video datas are exported by parity field, every
640*240 pixel is exported, two export 640*480 pixel altogether.
2nd, it is VGA to configure main MCU receiving terminals pattern of the input, i.e., receive 640*480 pixel every time.
3rd, monostable flipflop is sealed between modulus conversion chip VSYNC and main MCU VSYNC.
4th, main MCU is swapped after receiving whole frame video data to it.
5th, identical EDID data are write to each output port of selected display unit video card；
6th, each output port of video card is numbered according to the display unit of mosaic screen；
7th, main MCU distributes to the data syn-chronization received the video card of each display unit.
The inventive method writes identical EDID data to each output port of selected video card, to each defeated of video card
Exit port is numbered according to the display unit of mosaic screen, and seals in the HSYNC numbers of rear each VSYNC after monostable flipflop
One times is added, by being originally 240, increases as 480, main MCU has been received the video data of entire picture with single,
Be not in picture interim card, situation about losing so as to realize that the synchronization video of each display unit of mosaic screen is shown.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (1)
1. a kind of mosaic screen synchronizing video data display methods, it is characterised in that scheme includes：
It is interlace VGA to configure modulus conversion chip output format, is exported by parity field；
Main MCU receiving terminals pattern of the input is configured for VGA；
The core for merging odd field VSYNC, idol field VSYNC effect has been sealed between modulus conversion chip VSYNC and main MCU VSYNC
Piece, the chip is that monostable flipflop or d type flip flop add one and door；
Main MCU is swapped after receiving whole frame video data to it；
Identical EDID data are write to each output port of selected display unit video card；
Each output port of video card is numbered according to the display unit of mosaic screen；
Main MCU distributes to the data syn-chronization received the video card of each display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264836.6A CN107071361A (en) | 2017-04-21 | 2017-04-21 | A kind of mosaic screen synchronizing video data display methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264836.6A CN107071361A (en) | 2017-04-21 | 2017-04-21 | A kind of mosaic screen synchronizing video data display methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107071361A true CN107071361A (en) | 2017-08-18 |
Family
ID=59600752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710264836.6A Pending CN107071361A (en) | 2017-04-21 | 2017-04-21 | A kind of mosaic screen synchronizing video data display methods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107071361A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830857A (en) * | 2019-04-23 | 2020-10-27 | 杭州海康威视数字技术股份有限公司 | Display screen and control method thereof |
| CN116913178A (en) * | 2023-09-13 | 2023-10-20 | 奥视(天津)科技有限公司 | Spliced screen linkage system and video splicing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070067522A1 (en) * | 2005-09-16 | 2007-03-22 | Beacon Advanced Technology Co., Ltd. | Video integrated circuit and video processing apparatus thereof |
| CN102946503A (en) * | 2012-10-26 | 2013-02-27 | 合肥移瑞通信技术有限公司 | Implementing method of digital video data of output single-field VGA (Video Graphics Array) for simulation camera |
| CN104375789A (en) * | 2013-08-14 | 2015-02-25 | 杭州海康威视数字技术股份有限公司 | Synchronous displaying method and system of tiled display screen |
| CN105975237A (en) * | 2016-07-18 | 2016-09-28 | 合肥盈川信息技术有限公司 | Multi-stage synchronous display method for spliced screen |
| CN106126152A (en) * | 2016-07-18 | 2016-11-16 | 合肥盈川信息技术有限公司 | A kind of new mosaic screen synchronous display method |
-
2017
- 2017-04-21 CN CN201710264836.6A patent/CN107071361A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070067522A1 (en) * | 2005-09-16 | 2007-03-22 | Beacon Advanced Technology Co., Ltd. | Video integrated circuit and video processing apparatus thereof |
| CN102946503A (en) * | 2012-10-26 | 2013-02-27 | 合肥移瑞通信技术有限公司 | Implementing method of digital video data of output single-field VGA (Video Graphics Array) for simulation camera |
| CN104375789A (en) * | 2013-08-14 | 2015-02-25 | 杭州海康威视数字技术股份有限公司 | Synchronous displaying method and system of tiled display screen |
| CN105975237A (en) * | 2016-07-18 | 2016-09-28 | 合肥盈川信息技术有限公司 | Multi-stage synchronous display method for spliced screen |
| CN106126152A (en) * | 2016-07-18 | 2016-11-16 | 合肥盈川信息技术有限公司 | A kind of new mosaic screen synchronous display method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830857A (en) * | 2019-04-23 | 2020-10-27 | 杭州海康威视数字技术股份有限公司 | Display screen and control method thereof |
| CN111830857B (en) * | 2019-04-23 | 2021-09-21 | 杭州海康威视数字技术股份有限公司 | Display screen and control method thereof |
| CN116913178A (en) * | 2023-09-13 | 2023-10-20 | 奥视(天津)科技有限公司 | Spliced screen linkage system and video splicing method |
| CN116913178B (en) * | 2023-09-13 | 2023-11-28 | 奥视(天津)科技有限公司 | Spliced screen linkage system and video splicing method |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |