CN106598526B

CN106598526B - Method, device and system for displaying PPT on spliced wall

Info

Publication number: CN106598526B
Application number: CN201611185796.8A
Authority: CN
Inventors: 李娜
Original assignee: Vtron Technologies Ltd
Current assignee: Vtron Technologies Ltd
Priority date: 2016-12-20
Filing date: 2016-12-20
Publication date: 2020-01-10
Anticipated expiration: 2036-12-20
Also published as: CN106598526A

Abstract

The embodiment of the invention discloses a method, a device and a system for displaying PPT on a splicing wall, which solve the technical problems of unsynchronized jamming, unsynchronized jamming and the like when PPT files are played in a full screen mode through Office software at present, and the technical problems of blurred and unclear images caused by on-wall display in a mode of taking a local machine as a signal under the condition of multiple display cards of multiple screens due to limited resolution of the local machine, so that technical problems to be solved by technical personnel in the field are urgently needed. The method for displaying PPT on the spliced wall comprises the following steps: s1: acquiring data of each page of PPT coded by a client and pressing the data into a queue; s2: taking out the coded data from the queue, decoding the coded data into RGB data, and filling the RGB data into a preset rear-end buffer of the display card; s3: and after the RGB data in each display card is updated, transferring the RGB data of each display card to a preset front end buffer, and displaying the PPT of the corresponding page.

Description

Method, device and system for displaying PPT on spliced wall

Technical Field

The invention relates to the technical field of image processing, in particular to a method, a device and a system for displaying PPT on a spliced wall.

Background

The spliced wall is taken as a professional display technology branch, and the future development is expected. The spliced wall has a large combined space: the small screen splicing and the large screen splicing can be adopted; the single-screen splicing can be carried out one-to-one, and the whole screen splicing can be carried out one-to-one; and the large screen and the small screen can be assembled in a mixed mode. According to the system scale and the application requirements of a client on the liquid crystal splicing curtain wall system, a specific implementation scheme can be designed by selecting a proper product and splicing mode according to the service environment of the system, so that the application requirements of the system are met.

In the application of large-screen display, if a local PPT file needs to be played in a workstation, two main methods are adopted:

the method comprises the following steps: office software is firstly installed on a workstation, and then a local PPT file is copied to the workstation. Therefore, under the condition of multiple screens and multiple display cards, the Office software installed in the workstation is used for playing the PPT file in a full screen mode, and the phenomena of unsynchronization, unsynchronization and the like can occur.

The second method comprises the following steps: PPT is played on the machine, and through signal acquisition, the projection is displayed on a workstation. Due to the limited resolution of the machine, the image is blurred and unclear under the condition of a multi-screen multi-display card.

The technical problem that the PPT file is played in a full screen through Office software can be jammed, unsynchronized and the like, and the technical problem that the image is blurred and unclear is solved by the technical problem that the technical problem is urgently needed to be solved by the technical staff in the field because the resolution of the machine is limited and the machine is used as a signal to display on the wall under the condition of multiple screens and multiple display cards.

Disclosure of Invention

The method, the device and the system for displaying PPT on the spliced wall provided by the embodiment of the invention solve the technical problems of unsynchronized and unsynchronized phenomena of jamming and the like when PPT files are played in a full screen mode through Office software at present, and the technical problems of blurred and unclear images caused by the fact that the local machine is used as a signal for on-wall display under the condition of multiple display cards of multiple screens due to the limited resolution of the local machine become technical problems to be solved urgently by technical personnel in the field.

The method for displaying PPT on the spliced wall provided by the embodiment of the invention comprises the following steps:

s1: acquiring data of each page of PPT coded by a client and pressing the data into a queue;

s2: taking out the coded data from the queue, decoding the coded data into RGB data, and filling the RGB data into a preset rear-end buffer of the display card;

s3: and after the RGB data in each display card is updated, transferring the RGB data of each display card to a preset front end buffer, and displaying the PPT of the corresponding page.

Optionally, before acquiring and pushing data encoded by the client for each page of PPT into the queue, the method further includes:

and creating a window with the same size according to the size of the single logic screen configured for each display card, wherein the window is used for displaying the PPT.

Optionally, the creating of the window with the same size is performed according to the size of the single logic screen configured for each graphics card, and the window is used for displaying the PPT and then further comprises:

creating the pre-set back-end buffer and the pre-set front-end buffer for updating the PPT to be displayed.

Optionally, after the RGB data in each display card is updated, transferring the RGB data of each display card to a preset front buffer, and displaying the PPT of the corresponding page further includes:

looping steps S2 and S3 until the PPT plays of all pages are completed.

The device for displaying PPT on the spliced wall provided by the embodiment of the invention comprises:

the acquisition unit is used for acquiring data after each page of PPT is coded by the client and pressing the data into a queue;

the first filling unit is used for taking out the coded data from the queue, decoding the coded data into RGB data and filling the RGB data into a preset rear-end buffer of the display card;

and the second filling unit is used for transferring the RGB data of each display card to a preset front end buffer and displaying the PPT of the corresponding page after the RGB data in each display card is updated.

Optionally, the method further comprises:

and the configuration unit is used for creating windows with the same size according to the size of the single logic screen configured for each display card, and the windows are used for displaying the PPT.

Optionally, the method further comprises:

a creating unit for creating the preset back-end buffer and the preset front-end buffer for updating the PPT to be displayed.

Optionally, the method further comprises:

and the circulating trigger unit is used for circularly triggering the first filling unit and the second filling unit until PPT playing of all pages is completed.

The system for displaying PPT on the spliced wall provided by the embodiment of the invention comprises:

the PPT display system comprises a client and any one of the PPT display devices on the spliced wall;

and the client is in communication connection with the device for displaying the PPT on the spliced wall.

Optionally, the client is configured to encode each page of the PPT to be played, and push the encoded data into a queue to send to the device for displaying the PPT on the tiled wall.

According to the technical scheme, the embodiment of the invention has the following advantages:

the embodiment of the invention provides a method, a device and a system for displaying PPT on a spliced wall, wherein the method for displaying PPT on the spliced wall comprises the following steps: s1: acquiring data of each page of PPT coded by a client and pressing the data into a queue; s2: taking out the coded data from the queue, decoding the coded data into RGB data, and filling the RGB data into a preset rear-end buffer of the display card; s3: and after the RGB data in each display card is updated, transferring the RGB data of each display card to a preset front end buffer, and displaying the PPT of the corresponding page. In the embodiment, the technical problems that the phenomena of unsynchronized and unsmooth display and the like of the PPT file are caused by full-screen playing of the PPT file through Office software at present are solved, and the resolution of the local machine is limited, so that the local machine is used as a signal to display on the wall under the condition of multi-screen multi-display cards, and the technical problems of fuzzy and unclear images are solved in an urgent need of technical personnel in the field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic flow chart of an embodiment of a method for displaying PPT on a tiled wall according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of a device for displaying PPT on a tiled wall according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an embodiment of a system for displaying PPT on a tiled wall according to an embodiment of the present invention;

fig. 4 is a schematic illustration of the application of fig. 1.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of a method for displaying PPT on a tiled wall according to the present invention includes:

101. creating a window with the same size according to the size of a single logic screen configured for each display card, wherein the window is used for displaying the PPT;

102. creating a preset back end buffer and a preset front end buffer for updating the PPT to be displayed;

when window creation with the same size is performed according to the size of a single logic screen configured for each graphics card, and the window is used for displaying the PPT, a preset back-end buffer and a preset front-end buffer for updating the PPT to be displayed need to be created.

103. Acquiring PPT (power point) which is coded by a client for each page and then pressed into a queue;

after a preset back-end buffer and a preset front-end buffer for updating the PPT to be displayed are created, data coded by the client for each page of PPT needs to be acquired and pressed into a queue.

104. Taking out the coded data from the queue, decoding the coded data into RGB data, and filling the RGB data into a preset rear-end buffer of the display card;

after PPT which is encoded by each page of PPT by the client and is pressed into the queue is obtained, the encoded data is required to be taken out from the queue and decoded into RGB data, and the RGB data is filled into a preset rear-end buffer of the display card.

105. After the RGB data in each display card is updated, transferring the RGB data of each display card to a preset front end buffer, and displaying the PPT of the corresponding page;

and after the coded data are taken out from the queue and decoded into RGB data and filled into the preset rear-end buffer of the display card, after the RGB data in each display card are updated, the RGB data of each display card are transferred to the preset front-end buffer, and the PPT of the corresponding page is displayed.

106. And looping

steps

104 and 105 until PPT playing of all pages is completed.

And looping

steps

104 and 105 until PPT playing of all pages is completed.

A specific application scenario is described below, and as shown in fig. 4, the application examples include:

a method for playing a local PPT file in a workstation in a full screen, smooth and clear manner is provided, and FIG. 1 is a basic block diagram of the present invention. The method comprises the following steps:

1. local machine (client mentioned in the embodiment)

(1) Loading a PPT file to be played;

(2) encoding each page in the PPT;

(3) data is pushed into a queue and sent to a workstation

2. Workstation (the device for displaying PPT on the splicing wall mentioned in the embodiment)

(1) Running configuration software to configure each current display card into a single logic screen;

(2) respectively creating windows with the same size according to the total width and height of the single logic screen of each display card to display the content of the current PPT, and simultaneously creating a front buffer area and a rear buffer area for each display card to update the content to be displayed;

(3) receiving data and pressing the data into a queue;

(4) taking out the data from the queue, decoding the data into RGB data and filling the RGB data into the rear end buffer of each display card;

(5) clearing the current display area

(6) After the data of each display card is updated, turning the display card into a front buffer area to finish the display of the PPT of the current page;

and (5) circularly operating the operations (4), (5) and (6) to complete the whole PPT file playing process.

In the embodiment, by acquiring data obtained by a client after encoding each page of PPT and pressing the data into a queue, taking out encoded data from the queue and decoding the encoded data into RGB data, and filling the RGB data into a preset front-end buffer of a display card, when the RGB data in each display card is updated, the RGB data of each display card is transferred to the preset front-end buffer, and the PPT of the corresponding page is displayed, thereby solving the technical problem that the phenomena of stutter, asynchronism and the like occur when the PPT file is played in a full screen through Office software at present, and the technical problem that the image is blurred and unclear when the local computer is used as a signal to be displayed on the wall under the condition of multiple display cards of multiple screens due to limited resolution of the local computer becomes a technical problem to be solved urgently by technical personnel in the field.

The invention is simple to realize, has good improvement effect on the full-screen playing of the PPT file under the condition of multiple screens and multiple display cards, does not have the phenomena of asynchronism, tearing, blockage, fuzziness and the like, and can realize the playing of the PPT file of the client without independently installing Office software and copying the PPT file by the workstation.

Referring to fig. 2, an embodiment of an apparatus for displaying PPT on a tiled wall according to an embodiment of the present invention includes:

and the configuration unit 201 is used for creating windows with the same size according to the size of the single logic screen configured for each display card, wherein the windows are used for displaying PPTs.

A creating unit 202 for creating a preset back-end buffer and a preset front-end buffer for updating PPTs to be displayed.

An obtaining unit 203, configured to obtain data obtained by a client after encoding each page of PPT, and push the data into a queue;

a first filling unit 204, configured to take out the encoded data from the queue, decode the encoded data into RGB data, and fill the RGB data into a preset back-end buffer of the graphics card;

the second filling unit 205 is configured to, after the RGB data in each graphics card is updated, transfer the RGB data of each graphics card to a preset front buffer, and display the PPT of the corresponding page.

And a circular triggering unit 206, configured to circularly trigger the first padding unit and the second padding unit until PPT playing of all pages is completed.

In the embodiment, the technical problems that the phenomena of unsynchronized and unsmooth display and the like of the PPT file are caused by full-screen playing of the PPT file through Office software at present are solved, and the resolution of the local machine is limited, so that the local machine is used as a signal to display on the wall under the condition of multi-screen multi-display cards, and the technical problems of fuzzy and unclear images are solved in an urgent need of technical personnel in the field.

Referring to fig. 3, an embodiment of a system for displaying PPT on a tiled wall according to an embodiment of the present invention includes:

a client 1 and a device 2 for displaying PPT on a spliced wall as mentioned in the embodiment of FIG. 2;

the client 1 is connected with a device 2 for displaying PPT on a spliced wall in a communication mode.

And the client 1 is used for encoding each page of the PPT loaded to be played, and pushing the encoded data into a queue to be sent to the device 2 for displaying the PPT on the spliced wall.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method of displaying PPT on a tiled wall, comprising:

s2: taking out the coded data from the queue, decoding the coded data into RGB data, and filling the RGB data into a preset rear-end buffer of a display card;

2. The method for displaying PPT on a tiled wall according to claim 1, wherein before acquiring and pushing data encoded by a client for each page of PPT into a queue, the method further comprises:

3. The method for displaying PPT on a tiled wall according to claim 2, wherein the same-size window creation is performed according to the size of the single logic screen configured for each graphics card, and the window is used for displaying PPT and further comprises:

4. The method for displaying PPTs on a tiled wall according to claim 3, wherein after the RGB data in each of the graphics cards is updated, the method further comprises, after transferring the RGB data of each of the graphics cards to a preset front buffer and displaying the PPTs of a corresponding page:

looping steps S2 and S3 until the PPT plays of all pages are completed.

5. An apparatus for displaying PPT on a tiled wall, comprising:

6. The device for displaying PPT on a spliced wall as claimed in claim 5, further comprising:

7. The device for displaying PPT on a tiled wall according to claim 6, further comprising:

8. The apparatus for displaying PPT on a tiled wall according to claim 7, further comprising:

9. A system for displaying PPT on a tiled wall, comprising:

a client and the device for displaying PPT on the spliced wall as claimed in any one of claims 5 to 8;

10. The system for displaying PPT on a tiled wall according to claim 9, wherein said client is configured to encode each page of the PPT for the loaded PPT to be played, and push the encoded data into a queue to be sent to the PPT-displaying device on the tiled wall.