CN107172319A - A kind of mosaic screen synchronization video monitoring method - Google Patents
A kind of mosaic screen synchronization video monitoring method Download PDFInfo
- Publication number
- CN107172319A CN107172319A CN201710264912.3A CN201710264912A CN107172319A CN 107172319 A CN107172319 A CN 107172319A CN 201710264912 A CN201710264912 A CN 201710264912A CN 107172319 A CN107172319 A CN 107172319A
- Authority
- CN
- China
- Prior art keywords
- vsync
- main mcu
- video
- display unit
- video card
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
-
- 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
- H04N5/268—Signal distribution or switching
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
A kind of mosaic screen synchronization video monitoring method.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 has been sealed between modulus conversion chip VSYNC and main MCU VSYNC；Main MCU is swapped after receiving whole frame video data to it；The gap between liquid crystal display is filled using three-color LED light；Identical EDID data are write to the output port for selecting video card；The three-color LED light of each output port gap filling 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, realizes that the synchronization video of each display unit of mosaic screen is shown, is not in picture interim card, situation about losing.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of mosaic screen synchronization video monitoring method.
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 synchronization video monitoring method provided in an embodiment of the present invention, in order to solve present in background technology
Problem, technical solution of the present invention is as follows：
A kind of mosaic screen synchronization video monitoring method, 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；
The gap between liquid crystal display is filled using three-color LED light；
Identical EDID data are write to each output port for selecting display unit video card；
Each output port of video card is numbered according to the display unit of mosaic screen and the three-color LED light of gap filling；
The display signal and three-color LED light of video card output after numbering are subjected to the aobvious of unity logic screen by pure hardware effort station
Show；
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, solves the nonsynchronous technical problem of display occur between video card, makes master
MCU can receive the video data of entire picture with single, realize that the synchronization video of each display unit of mosaic screen is shown, will not go out
Existing picture interim card, situation about losing.
Embodiment
A kind of mosaic screen synchronization video monitoring method provided in an embodiment of the present invention, its scheme is as follows：
A kind of mosaic screen synchronization video monitoring method, 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；
The gap between liquid crystal display is filled using three-color LED light；
Identical EDID data are write to each output port for selecting display unit video card；
Each output port of video card is numbered according to the display unit of mosaic screen and the three-color LED light of gap filling；
The display signal and three-color LED light of video card output after numbering are subjected to the aobvious of unity logic screen by pure hardware effort station
Show；
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, solves the nonsynchronous technical problem of display occur between video card, makes master
MCU can receive the video data of entire picture with single, realize that the synchronization video of each display unit of mosaic screen is shown, will not go out
Existing picture interim card, situation about losing.
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 synchronization video monitoring method, it is characterised in that 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；
The gap between liquid crystal display is filled using three-color LED light；
Identical EDID data are write to each output port for selecting display unit video card；
Each output port of video card is numbered according to the display unit of mosaic screen and the three-color LED light of gap filling；
The display signal and three-color LED light of video card output after numbering are subjected to the aobvious of unity logic screen by pure hardware effort station
Show；
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 |
|---|---|---|---|
| CN201710264912.3A CN107172319A (en) | 2017-04-21 | 2017-04-21 | A kind of mosaic screen synchronization video monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264912.3A CN107172319A (en) | 2017-04-21 | 2017-04-21 | A kind of mosaic screen synchronization video monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107172319A true CN107172319A (en) | 2017-09-15 |
Family
ID=59812630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710264912.3A Pending CN107172319A (en) | 2017-04-21 | 2017-04-21 | A kind of mosaic screen synchronization video monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107172319A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108334295A (en) * | 2018-01-24 | 2018-07-27 | 广州国交润万交通信息有限公司 | Method for synchronizing and separating operation and display of monitoring PC and spliced large screen |
Citations (4)
| 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 |
-
2017
- 2017-04-21 CN CN201710264912.3A patent/CN107172319A/en active Pending
Patent Citations (4)
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108334295A (en) * | 2018-01-24 | 2018-07-27 | 广州国交润万交通信息有限公司 | Method for synchronizing and separating operation and display of monitoring PC and spliced large screen |
| CN108334295B (en) * | 2018-01-24 | 2019-06-25 | 广州国交润万交通信息有限公司 | Method for synchronizing and separating operation and display of monitoring PC and spliced large screen |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
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| RJ01 | Rejection of invention patent application after publication |