CN105549931A - USB (Universal Serial Bus) video splicing playing system - Google Patents
USB (Universal Serial Bus) video splicing playing system Download PDFInfo
- Publication number
- CN105549931A CN105549931A CN201510918781.7A CN201510918781A CN105549931A CN 105549931 A CN105549931 A CN 105549931A CN 201510918781 A CN201510918781 A CN 201510918781A CN 105549931 A CN105549931 A CN 105549931A
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- mosaic screen
- splicing
- video
- screen
- mosaic
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- 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
- G06F3/1431—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 using a single graphics controller
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- 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
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- 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
- H04N5/265—Mixing
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention relates to a displaying and control technology and provides a USB (Universal Serial Bus) video splicing playing system, which realizes synchronous video playing of splicing screens in a splicing mode; the USB video splicing playing system comprises a control platform and multiple splicing screens; the control platform and all of the splicing screens are successively and serially connected together via communication wires; a working circuit of each of the splicing screens includes an interface circuit and a main chip circuit; each of the interface circuits divides an input signal into two paths, wherein one path is connected to the main chip circuit, and the other path is connected to the next splicing screen; particularly, the interface circuit of the first splicing screen further sends a synchronization instruction generated by the main chip circuit of the first splicing screen to the next splicing screen; each of the main chip circuits is used for receiving the signal from the interface circuits, and plays a video according to the signal; and particularly, the main chip circuit of the first splicing screen further generates the synchronization instruction for the subsequent splicing screens. The USB video splicing playing system disclosed by the invention is applied to a splicing screen playing system.
Description
Technical field
The present invention relates to display control technology, particularly USB video-splicing Play System.
Background technology
Mosaic screen has extremely narrow frame, and multiple mosaic screen is lined up by ranks can form the spliced display wall of an oversize, is widely used in the field such as safety monitoring, media play.
Mosaic screen in combination is serially connected successively by control line in use, is undertaken unifying controlling by control line by centralized control platform, and the steering order that mosaic screen sends according to parametric controller can by single screen mode work, also can by Splicing model work.During single screen mode, the signal picture of input is all put on screen and shows by each mosaic screen, during Splicing model, each mosaic screen is according to oneself position in combination, the assigned picture region of intercepting input signal shows, and whole like this combination just shows the large picture of a width.
Mosaic screen generally has the interfaces such as USB, VGA, HDMI, DVI, when using USB interface to play the video file in the USB interface storer such as USB flash disk with Splicing model, because each mosaic screen internal clock frequencies is different, the not equal reason of USB storage inner parameter, video pictures between different mosaic screen can be caused asynchronous, is all generally use single screen mode work when therefore mosaic screen USB plays.
When needs carry out advertisement video broadcasting with Splicing model, conventional is the scheme using player+divider, such as first use the advertisement video in USB flash disk player plays USB flash disk, player exports HDMI video signal to HDMI divider, HDMI divider output multi-channel HDMI signal is connected on multiple mosaic screens of combination, and mosaic screen shows by Splicing model.For the combination of the capable N row of M, in this scheme, also need USB flash disk player 1, signal distributor 1, M × N+1 root signal wire except combination, whole system is complicated, cost is high, reliability is low.The system that figure 1 show this scheme connects block diagram.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of USB video-splicing Play System, realize mosaic screen and carry out synchronous video playback under Splicing model.
For solving the problem, the technical solution used in the present invention is: USB video-splicing Play System, comprise parametric controller and multiple mosaic screen, parametric controller and all mosaic screens use connection to be serially connected successively, wherein, the mosaic screen be connected with parametric controller is the first mosaic screen, and being connected to the later mosaic screen of the first mosaic screen is follow-up mosaic screen; The mode of operation of all mosaic screens is all Splicing model work, and the operating circuit of all mosaic screens all comprises interface circuit and master chip circuit;
The interface circuit of the first mosaic screen, for the control signal of input is divided into two-way, a road is connected to the master chip circuit of the first mosaic screen, and another road is connected to next mosaic screen; Synchronic command also for the master chip circuit evolving by the first mosaic screen sends to next mosaic screen;
The interface circuit of follow-up mosaic screen, for the control signal of input and synchronizing signal are divided into two-way, a road is connected to the master chip circuit of follow-up mosaic screen, and another road is connected to next mosaic screen;
The master chip circuit of the first mosaic screen, for receiving the control signal from interface circuit, and plays video according to control signal; Also for generating synchronic command to follow-up mosaic screen, and synchronic command is sent to the interface circuit of the first mosaic screen;
The master chip circuit of follow-up mosaic screen, for receiving control signal from interface circuit and synchronic command, and plays video according to control signal and synchronic command.
Further, described synchronic command comprises the current video reproduction time of the first mosaic screen.
Further, the video that mosaic screen is play is USB video.
The invention has the beneficial effects as follows: send synchronic command by the master chip circuit of the first mosaic screen inside to follow-up mosaic screen, follow-up mosaic screen all carries out video playback according to this synchronic command, therefore the present invention can use the USB playing function of mosaic screen under Splicing model, reach the function that player+divider scheme is identical, and whole system is succinct, reliable.
Accompanying drawing explanation
Fig. 1 is the connection block diagram of conventional video splicing Play System;
Fig. 2 is system chart of the present invention;
Fig. 3 is the internal frame diagram of mosaic screen in the present invention.
Embodiment
The present invention proposes a kind of USB and plays synchro system and method, to solve when USB video is play in multiple mosaic screen splicing in current combination because causing the nonsynchronous problem of video in playing process without synchronization mechanism, below in conjunction with accompanying drawing, this programme is described in detail.
As shown in Figure 2, the present invention is when implementing, and only use control line is by all splicings on combination from from the 1st mosaic screen, is serially connected successively, 1st mosaic screen is connected on centralized control platform, splices broadcasting by the USB that carries out of all concatenation units in centralized control platform courses combination.
As shown in Figure 3, the operating circuit of all mosaic screens all comprises interface circuit and master chip circuit.Wherein interface circuit is not only forwarded to next mosaic screen the control signal that centralized control platform or previous mosaic screen are brought, in addition, the interface circuit of the first mosaic screen can also be sent to next mosaic screen the control signal that internal main chip circuit generates, so just for synchronous control signal transmission provides path.
Combination is when starting USB splicing and playing, 1st mosaic screen timing mosaic screen rearwards sends synchronic command, the 1st piece of screen current video reproduction time is comprised in synchronic command, all screens jump to time place's continuation of specifying in instruction and play video after receiving synchronic command below, in such combination, all mosaic screens all carry out broadcasting video by identical video time, thus achieve synchronous broadcasting.
The foregoing describe ultimate principle of the present invention and main feature; the description of instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (3)
1.USB video-splicing Play System, comprise parametric controller and multiple mosaic screen, parametric controller and all mosaic screens use connection to be serially connected successively, wherein, the mosaic screen be connected with parametric controller is the first mosaic screen, and being connected to the later mosaic screen of the first mosaic screen is follow-up mosaic screen, it is characterized in that, the mode of operation of all mosaic screens is all Splicing model work, and the operating circuit of all mosaic screens all comprises interface circuit and master chip circuit;
The interface circuit of the first mosaic screen, for the control signal of input is divided into two-way, a road is connected to the master chip circuit of the first mosaic screen, and another road is connected to next mosaic screen; Synchronic command also for the master chip circuit evolving by the first mosaic screen sends to next mosaic screen;
The interface circuit of follow-up mosaic screen, for the control signal of input and synchronizing signal are divided into two-way, a road is connected to the master chip circuit of follow-up mosaic screen, and another road is connected to next mosaic screen;
The master chip circuit of the first mosaic screen, for receiving the control signal from interface circuit, and plays video according to control signal; Also for generating synchronic command to follow-up mosaic screen, and synchronic command is sent to the interface circuit of the first mosaic screen;
The master chip circuit of follow-up mosaic screen, for receiving control signal from interface circuit and synchronic command, and plays video according to control signal and synchronic command.
2. USB video-splicing Play System according to claim 1, is characterized in that, described synchronic command comprises the current video reproduction time of the first mosaic screen.
3. USB video-splicing Play System according to claim 1, is characterized in that, the video that mosaic screen is play is USB video.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918781.7A CN105549931B (en) | 2015-12-10 | 2015-12-10 | USB video splicing and playing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918781.7A CN105549931B (en) | 2015-12-10 | 2015-12-10 | USB video splicing and playing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105549931A true CN105549931A (en) | 2016-05-04 |
| CN105549931B CN105549931B (en) | 2020-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510918781.7A Active CN105549931B (en) | 2015-12-10 | 2015-12-10 | USB video splicing and playing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105549931B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208965A (en) * | 2020-01-15 | 2020-05-29 | 宁波Gqy视讯股份有限公司 | Splicing display system and display method thereof |
| CN113271487A (en) * | 2021-05-11 | 2021-08-17 | 深圳创维－Rgb电子有限公司 | Audio and video synchronous playing method, device, system, program product and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872605A (en) * | 2010-06-28 | 2010-10-27 | 浙江红苹果电子有限公司 | Method and device for jointing display screens |
| CN102097085A (en) * | 2010-12-25 | 2011-06-15 | 广东威创视讯科技股份有限公司 | Method and device for identifying system spliced by multiple display units |
| CN104483849A (en) * | 2014-10-28 | 2015-04-01 | 广州视源电子科技股份有限公司 | Multi-master control module connecting structure, identification method thereof and splicing wall |
| CN104505056A (en) * | 2014-12-26 | 2015-04-08 | 广东威创视讯科技股份有限公司 | LED unit splicing system and address routing method thereof |
-
2015
- 2015-12-10 CN CN201510918781.7A patent/CN105549931B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872605A (en) * | 2010-06-28 | 2010-10-27 | 浙江红苹果电子有限公司 | Method and device for jointing display screens |
| CN102097085A (en) * | 2010-12-25 | 2011-06-15 | 广东威创视讯科技股份有限公司 | Method and device for identifying system spliced by multiple display units |
| CN104483849A (en) * | 2014-10-28 | 2015-04-01 | 广州视源电子科技股份有限公司 | Multi-master control module connecting structure, identification method thereof and splicing wall |
| CN104505056A (en) * | 2014-12-26 | 2015-04-08 | 广东威创视讯科技股份有限公司 | LED unit splicing system and address routing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208965A (en) * | 2020-01-15 | 2020-05-29 | 宁波Gqy视讯股份有限公司 | Splicing display system and display method thereof |
| CN111208965B (en) * | 2020-01-15 | 2023-09-22 | 宁波Gqy视讯股份有限公司 | Spliced display system and display method thereof |
| CN113271487A (en) * | 2021-05-11 | 2021-08-17 | 深圳创维－Rgb电子有限公司 | Audio and video synchronous playing method, device, system, program product and storage medium |
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| Publication number | Publication date |
|---|---|
| CN105549931B (en) | 2020-02-07 |
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