CN111026343A - Real-time synchronous display method for multiple spliced screens - Google Patents
Real-time synchronous display method for multiple spliced screens Download PDFInfo
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- CN111026343A CN111026343A CN201911086984.9A CN201911086984A CN111026343A CN 111026343 A CN111026343 A CN 111026343A CN 201911086984 A CN201911086984 A CN 201911086984A CN 111026343 A CN111026343 A CN 111026343A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009877 rendering Methods 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003709 image segmentation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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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
Abstract
The invention relates to a real-time synchronous display method for a plurality of spliced screens, which comprises the following steps: s1: the controller starts server software; s2: starting client software by each spliced screen; s3: the client acquires the coordinate information of the position of the display area from the server according to the physical position; s4: the controller acquires image frame data, encodes the image frame data through hardware and sends the encoded image frame data to each spliced screen client; s5: the method comprises the steps that a spliced screen receives image frame data, the image data are obtained according to hardware decoding, Surface rendering is carried out through a GPU, and a display area is determined according to coordinate information; s6: the server side sends a synchronous signal to the client side, and the client side receives the synchronous signal and displays the image area. The equipment comprises a controller, a network switch and a plurality of spliced screens, wherein the controller serves as a server side, the spliced screens serve as client sides, decoding and playing of videos are completed on the controller, and final pictures are displayed on the spliced screen equipment. The invention has the advantages of diversified display modes, high real-time degree, good expansibility and high configuration flexibility.
Description
Technical Field
The invention belongs to the technical field of information transmission, and particularly relates to a real-time synchronous display method for a plurality of spliced screens.
Background
With the development of LCD screen display technology, a plurality of color liquid crystal splicing screens are combined to form a larger color screen under more and more lines of scenes, and a large screen formed by combining and splicing the plurality of splicing screens needs to display a complete picture in real time. The spliced screen divides the complete picture into each sub-screen for display and can keep the picture formed by each sub-screen complete. At present, a physical output mode of hardware is mainly adopted in the market, image area segmentation is realized through a hardware image segmentation technology, and then the image area segmentation is output to a spliced screen at a corresponding position through a physical interface data line (HDMI, VGA and the like), and finally a complete large-screen image is formed. The main problems of this solution are that the maximum number of the tiled screens is already limited by the fixed number of hardware output interfaces, the scalability of the tiled screens and the combination mode is poor, and the high-resolution (above 4K) video playing display cannot be supported.
Disclosure of Invention
The invention aims to solve the problems and provides a real-time synchronous display method for a plurality of spliced screens, which has diversified display modes, high real-time degree, good expansibility and high configuration flexibility.
In order to achieve the purpose, the invention provides the following technical scheme:
a real-time synchronous display method for a plurality of spliced screens is implemented according to the following steps:
s1: the controller starts server software;
s2: starting client software by each spliced screen;
s3: the client acquires the coordinate information of the position of the display area from the server according to the physical position;
s4: the controller acquires image frame data, encodes the image frame data through hardware and sends the encoded image frame data to each spliced screen client;
s5: the method comprises the steps that a spliced screen receives image frame data, the image data are obtained according to hardware decoding, Surface rendering is carried out through a GPU, and a display area is determined according to coordinate information;
s6: the server side sends a synchronous signal to the client side, and the client side receives the synchronous signal and displays the image area.
Furthermore, the equipment comprises a controller, a network switch and a plurality of spliced screens, wherein the controller serves as a server side, the spliced screens serve as client sides, decoding and playing of videos are finished on the controller, and finally pictures are displayed on the spliced screen equipment.
Further, the screen data is transmitted by adopting a wired or wireless network.
Furthermore, the display method is suitable for the fields of screen projection display, remote desktop, shared desktop and security monitoring.
Compared with the prior art, the invention has the beneficial effects that:
the scheme of the invention adopts a wired or wireless network to transmit screen data instead of a physical interface data line mode, and gets rid of the limitation of the traditional physical fixed output by means of a router or a network switch, so that the number of the spliced screens is dynamically expandable, the display position is flexible, the software configuration is realized, the display modes are various, the limitation of the screen physical number in the technology is broken through to a certain extent, and a larger spliced screen large-screen device can be formed by combining. Meanwhile, the screen data is processed in a distributed mode at each spliced screen end instead of a centralized processing display mode, so that the requirement on the hardware performance is lowered. In the image data transmission process, the bandwidth requirement is reduced by utilizing an audio and video coding and decoding compression mechanism of hardware and GPU picture rendering, and the image real-time property is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the description of the embodiment will be briefly introduced below, it is obvious that the drawings in the following description are only for more clearly illustrating the embodiment of the present invention or the technical solution in the prior art, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a diagram of the physical topology of the inventive arrangements;
FIG. 2 is a flow chart of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood and implemented by those skilled in the art, the present invention is further described with reference to the following specific examples, which are provided for illustration only and are not intended to limit the present invention.
As shown in fig. 2, the real-time synchronous display method for multiple tiled screens is specifically implemented according to the following steps:
s1: the controller starts server software;
s2: starting client software by each spliced screen;
s3: the client acquires the coordinate information of the position of the display area from the server according to the physical position;
s4: the controller acquires image frame data, encodes the image frame data through hardware and sends the encoded image frame data to each spliced screen client;
s5: the method comprises the steps that a spliced screen receives image frame data, the image data are obtained according to hardware decoding, Surface rendering is carried out through a GPU, and a display area is determined according to coordinate information;
s6: the server side sends a synchronous signal to the client side, and the client side receives the synchronous signal and displays the image area.
Fig. 1 shows a physical topology diagram of the present invention, which is composed of a controller, a network switch, and a plurality of mosaic screens. The controller serves as a server side, the spliced screen serves as a client side, decoding and playing of videos are completed on the controller when the videos are played, and final pictures are displayed on the spliced screen device. Playing a video on a controller to acquire complete picture rendering data, and completing compression of audio and video data by calling a hardware coding and decoding module; and the controller packages the original compressed data through a binary protocol and then sends the packaged data to the daughter boards of each spliced screen, each daughter board decompresses the data by calling a hardware coding and decoding module, the decompressed data re-renders the picture on the Surface by calling a GPU, and the Surface determines the display area according to the physical space position of each sub-spliced screen. The controller sends out a synchronizing signal after sending data to all the spliced screen sub-boards, and each sub-board starts to display the next frame of picture after receiving the synchronizing signal.
The scheme of the invention adopts a wired or wireless network to transmit screen data instead of a physical interface data line mode, and solves the limitation of the number of spliced screens by a router or a network switch. Meanwhile, the screen data is processed in a distributed mode at each spliced screen end instead of a centralized processing display mode, so that the requirement on the hardware performance is lowered. In the image data transmission process, the bandwidth requirement is reduced by utilizing an audio and video coding and decoding compression mechanism of hardware and GPU picture rendering, and the image real-time property is improved.
The scheme of the invention gets rid of the limitation of traditional physical fixed output, so that the number of the spliced screens is dynamically expandable, the display position is flexible, the software configuration is realized, the display modes are various, the limitation of the physical number of the screens in the technology is broken through to a certain extent, and larger spliced screen large-screen equipment can be formed by combination.
The invention can be expanded to the fields of screen projection display, remote desktop, shared desktop and security monitoring.
The details of the present invention not described in detail are prior art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A real-time synchronous display method for a plurality of spliced screens is characterized by comprising the following steps:
s1: the controller starts server software;
s2: starting client software by each spliced screen;
s3: the client acquires the coordinate information of the position of the display area from the server according to the physical position;
s4: the controller acquires image frame data, encodes the image frame data through hardware and sends the encoded image frame data to each spliced screen client;
s5: the method comprises the steps that a spliced screen receives image frame data, the image data are obtained according to hardware decoding, Surface rendering is carried out through a GPU, and a display area is determined according to coordinate information;
s6: the server side sends a synchronous signal to the client side, and the client side receives the synchronous signal and displays the image area.
2. The real-time synchronous display method of multiple spliced screens as claimed in claim 1, wherein the device comprises a controller, a network switch and multiple spliced screens, the controller is used as a server, the spliced screen is used as a client, the decoding and playing of the video are all completed on the controller, and the final picture is displayed on the spliced screen device.
3. The real-time synchronous display method of multiple spliced screens as claimed in claim 1, wherein the screen data is transmitted by using a wired or wireless network.
4. The real-time synchronous display method for the multiple spliced screens according to any one of claims 1 to 3, wherein the display method is suitable for the fields of screen projection display, remote desktop, shared desktop and security monitoring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911086984.9A CN111026343A (en) | 2019-11-08 | 2019-11-08 | Real-time synchronous display method for multiple spliced screens |
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| CN201911086984.9A CN111026343A (en) | 2019-11-08 | 2019-11-08 | Real-time synchronous display method for multiple spliced screens |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654742A (en) * | 2020-06-18 | 2020-09-11 | 中电长城(长沙)信息技术有限公司 | Remote intelligent linkage screen projection method and system |
| CN111897504A (en) * | 2020-07-14 | 2020-11-06 | 西安万像电子科技有限公司 | Data display method and device, computer readable storage medium and processor |
| CN112040284A (en) * | 2020-06-24 | 2020-12-04 | 苏州科达科技股份有限公司 | Synchronous display control method and device of multiple display screens and storage medium |
| CN112286474A (en) * | 2020-10-28 | 2021-01-29 | 杭州海康威视数字技术股份有限公司 | Image processing method, device and system and display controller |
| CN113064565A (en) * | 2021-02-22 | 2021-07-02 | 杭州电子科技大学 | Method for remote real-time synchronous analog display by dynamic scanning of nixie tube |
| CN113556483A (en) * | 2021-07-12 | 2021-10-26 | 中星电子股份有限公司 | Monitoring screen splicing system and splicing method |
| CN113727154A (en) * | 2021-08-27 | 2021-11-30 | 京东方科技集团股份有限公司 | Synchronous playing system, method and device of spliced screen and storage medium |
| WO2022126773A1 (en) * | 2020-12-18 | 2022-06-23 | 威创集团股份有限公司 | Text display method and system, electronic device, and storage medium |
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| CN103165104A (en) * | 2011-12-12 | 2013-06-19 | 宁波Gqy视讯股份有限公司 | Video signal synchronously displaying method of spliced screen |
| CN104883542A (en) * | 2015-05-22 | 2015-09-02 | 武汉兴图新科电子股份有限公司 | Image multi-screen display system |
| CN105468327A (en) * | 2016-01-12 | 2016-04-06 | 福建星网锐捷安防科技有限公司 | Large screen splicing display method, device and system |
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2019
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| CN103165104A (en) * | 2011-12-12 | 2013-06-19 | 宁波Gqy视讯股份有限公司 | Video signal synchronously displaying method of spliced screen |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654742A (en) * | 2020-06-18 | 2020-09-11 | 中电长城(长沙)信息技术有限公司 | Remote intelligent linkage screen projection method and system |
| CN112040284A (en) * | 2020-06-24 | 2020-12-04 | 苏州科达科技股份有限公司 | Synchronous display control method and device of multiple display screens and storage medium |
| CN111897504A (en) * | 2020-07-14 | 2020-11-06 | 西安万像电子科技有限公司 | Data display method and device, computer readable storage medium and processor |
| CN111897504B (en) * | 2020-07-14 | 2024-03-12 | 西安万像电子科技有限公司 | Data display method and device, computer readable storage medium and processor |
| CN112286474A (en) * | 2020-10-28 | 2021-01-29 | 杭州海康威视数字技术股份有限公司 | Image processing method, device and system and display controller |
| CN112286474B (en) * | 2020-10-28 | 2023-03-14 | 杭州海康威视数字技术股份有限公司 | Image processing method, device and system and display controller |
| WO2022126773A1 (en) * | 2020-12-18 | 2022-06-23 | 威创集团股份有限公司 | Text display method and system, electronic device, and storage medium |
| CN113064565A (en) * | 2021-02-22 | 2021-07-02 | 杭州电子科技大学 | Method for remote real-time synchronous analog display by dynamic scanning of nixie tube |
| CN113556483A (en) * | 2021-07-12 | 2021-10-26 | 中星电子股份有限公司 | Monitoring screen splicing system and splicing method |
| CN113556483B (en) * | 2021-07-12 | 2022-11-11 | 中星电子股份有限公司 | Monitoring screen splicing system and splicing method |
| CN113727154A (en) * | 2021-08-27 | 2021-11-30 | 京东方科技集团股份有限公司 | Synchronous playing system, method and device of spliced screen and storage medium |
| CN113727154B (en) * | 2021-08-27 | 2023-08-08 | 京东方科技集团股份有限公司 | Synchronous playing system, method and device for spliced screen and storage medium |
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Application publication date: 20200417 |