CN114879924A - Method for realizing remote collaboration of multiple white boards - Google Patents

Abstract

The invention discloses a method for realizing remote cooperation of a plurality of white boards, which is suitable for at least two IFP (interactive voice protocol) devices with preset communication protocols, wherein white board software of the IFP devices establishes a communication channel through a local area network or a wide area network, and comprises the following steps: 1. when a user uses one device, starting a writing board of the user and setting the writing board as a main screen; 2. starting the writing boards of other equipment and applying for becoming the auxiliary screen of the writing board of the main screen, wherein the main screen synchronizes the current content to the auxiliary screen; 3. when a user operates on the main screen/the auxiliary screen, converting newly added content of the user into synchronous data in real time according to a preset communication protocol, sending the synchronous data to the auxiliary screen/the main screen through a communication channel, and analyzing the synchronous data received by the auxiliary screen/the main screen according to the communication protocol to obtain the newly added content so as to synchronize the main screen and the auxiliary screen in real time; 4. and when the main screen or the auxiliary screen exits, the synchronization is finished. The invention enables a plurality of remotely collaborative whiteboards to be operated synchronously in real time, and establishes a more effective remote interaction mode.

Description

Method for realizing remote collaboration of multiple white boards

Technical Field

The invention relates to the technical field of electronic whiteboards, in particular to a method for realizing remote collaboration of multiple whiteboards.

Background

Along with the rapid development of computer science and technology, electronic whiteboards integrating related technologies such as computers, displays, networks, cameras and the like are widely applied to learning and working occasions such as classrooms, large conferences and the like, and can be used for playing and displaying various multimedia courseware integrating sound, images, characters and videos.

At present, most white boards are shared in a video streaming mode, the white board of an initiator serves as a sending end, the display content of the white board is synchronously displayed on the white boards of participants in a video streaming mode, and the defects of the implementation mode are as follows: the participants can not modify and annotate the display content of the whiteboard as the receiving end, and only can check the content displayed on the whiteboard as the transmitting end, so that the user experience when the whiteboard performs remote bidirectional interaction is limited, and the synchronous real-time performance cannot be guaranteed through the encoding and decoding process based on the communication mode of the video stream.

Disclosure of Invention

The invention aims to provide a method for realizing remote collaboration of multiple white boards, so that the multiple remotely collaborative white boards can be operated synchronously in real time, and a more effective remote interaction mode is established.

In order to achieve the above purpose, the solution of the invention is:

a method for realizing remote collaboration of a plurality of white boards is suitable for at least two IFP devices with preset communication protocols, and white board software of the IFP devices establishes communication for interactive communication channels through a local area network or a wide area network, and comprises the following steps:

step 1, when a user uses one device, starting a writing board of the user and setting the writing board as a main screen;

step 2, starting the writing boards of other equipment and applying for becoming the auxiliary screen of the main screen writing board, wherein the main screen writing board converts the current content into synchronous data according to a preset communication protocol and sends the synchronous data to the auxiliary screen writing board through the communication channel, and the auxiliary screen writing board receives the synchronous data and then analyzes the synchronous data according to the preset communication protocol to obtain the current content of the main screen writing board for synchronous display;

step 3, when the user operates on the main screen writing board/the auxiliary screen writing board, converting newly-added content of the user into synchronous data in real time according to a preset communication protocol, and sending the synchronous data to the auxiliary screen writing board/the main screen writing board through the communication channel, and after receiving the synchronous data, the auxiliary screen writing board/the main screen writing board analyzes according to the preset communication protocol to obtain the newly-added content so as to enable the main screen writing board and the auxiliary screen writing board to be synchronous in real time;

step 4, when the main screen writing board or the auxiliary screen writing board quits, synchronously finishing; and when the synchronization is finished, the current contents of the main screen writing board and the auxiliary screen writing board are kept consistent, and the subsequent main screen writing board and the subsequent auxiliary screen writing board have respective display contents and operation contents.

In the step 4, when the auxiliary screen writing board exits, the main screen writing board is informed not to send the synchronous data any more, and the main screen writing board waits for the writing board of other equipment to apply for becoming the auxiliary screen.

In the step 4, when the main screen writing board exits, the main screen writing board and the auxiliary screen writing board both exit synchronously, the auxiliary screen writing board becomes the main screen, and the writing boards of other devices are waited for applying to become the auxiliary screens.

When the number of the IFP equipment is more than two, the IFP equipment establishes communication connection with the server through the local area network or the wide area network, and the server realizes the forwarding of synchronous data among the IFP equipment.

In the step 2, the current content includes current display content and/or historical operation content of the main screen writing board.

In the step 3, the newly added content includes newly added display content and/or newly added operation content of the main screen writing board/the auxiliary screen writing board.

After the technical scheme is adopted, the point-to-point connection and data communication between at least two IFP devices are directly established through the local area network or the wide area network, when a user operates on the writing board of one IFP device, the current display content and the operation content are synchronously sent to the writing board of the other IFP device in real time, the receiving end can synchronize the current display content and the operation content without waiting for the completion of the operation of the sending end, and therefore both sides establishing the connection can annotate and modify the content of the writing board in real time, so that more effective and rapid remote cooperation is established, and the learning and working efficiency is improved.

Drawings

FIG. 1 is a flow chart of an embodiment of the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried out in the method of implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium. The storage medium may be a read-only memory, a magnetic or optical disk, or the like.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Referring to fig. 1, the present invention discloses a method for implementing remote collaboration among multiple white boards, where the implementation method is applicable to at least two IFP (touch integrated machine) devices with preset communication protocols, and white board software of the IFP devices establishes a communication channel for interaction through a local area network or a wide area network, and the method includes the following steps:

step 1, when a user uses one device, starting a writing board of the device and setting the writing board as a main screen;

step 2, starting the writing boards of other devices and applying for becoming the auxiliary screen of the main screen writing board, wherein the main screen writing board converts the current content (including the current display content and/or the historical operation content) into synchronous data in a format of json (JavaScript object notation) and the like according to a preset communication protocol and sends the synchronous data to the auxiliary screen writing board through the communication channel, and the auxiliary screen writing board receives the synchronous data and then analyzes the synchronous data according to the preset communication protocol to obtain the current content of the main screen writing board for synchronous display; at the moment, the current display content and the historical operation content of the auxiliary screen writing board are synchronized with the content of the main screen writing board for the first time;

step 3, when the user operates (such as writing, erasing, canceling and recovering, moving, file importing and the like) on the main screen writing board/the auxiliary screen writing board, converting newly-added contents (including newly-added display contents and/or newly-added operation contents) of the user into synchronous data in a format of json (JavaScript object notation) and the like in real time according to a preset communication protocol, and sending the synchronous data to the auxiliary screen writing board/the main screen writing board through the communication channel, wherein the auxiliary screen writing board/the main screen writing board receives the synchronous data and then analyzes the synchronous data according to the preset communication protocol to obtain the newly-added contents for synchronously displaying and executing the same operation; therefore, the newly added content of the main screen/the auxiliary screen is synchronized to the auxiliary screen/the main screen in real time, and the content of the main screen and the auxiliary screen is kept completely consistent;

step 4, when the main screen writing board or the auxiliary screen writing board applies for quitting, the synchronization is finished; and when the synchronization is finished, the current contents of the main screen writing board and the auxiliary screen writing board are kept consistent, and the subsequent main screen writing board and the subsequent auxiliary screen writing board have respective display contents and operation contents.

The display contents mainly refer to presentation files such as documents (Word), tables (Excel), slides (PPT) and the like played by the user, and the operation contents mainly refer to operations such as writing, erasing, canceling, recovering and the like executed by the user.

In some embodiments of the foregoing implementation method, in step 3, when the user writes or draws a graphic on the main screen writing board/the sub-screen writing board, every time a time period elapses, the valid operation in the time period is converted into synchronous data to be sent; when a user performs operations such as canceling, recovering or turning pages on the main screen writing board/the auxiliary screen writing board, the instructions of the operations are converted into data to be sent (for example, when the main screen is switched to the second page of the presentation file, the auxiliary screen is also informed to be switched to the second page).

In some embodiments of the foregoing implementation method, in step 4, when the sub-screen tablet exits, the main screen tablet is notified that the synchronous data is no longer sent, and the main screen tablet waits for the tablet of another device to apply for becoming its sub-screen.

In a next implementation manner of the implementation method, in step 4, when the main screen writing board exits, and the main screen writing board and the sub-screen writing board both exit synchronously, the sub-screen writing board becomes the main screen, and waits for the writing board of other equipment to apply to become the sub-screen.

In some embodiments of the foregoing implementation method, when the number of the IFP devices is greater than two, each IFP device establishes a communication connection with the server through a local area network or a wide area network, and the server implements forwarding of the synchronization data between the IFP devices, that is, receives the synchronization data at one end and forwards the synchronization data to the other ends at the same time, thereby implementing multi-end synchronization.

Referring to fig. 1, the specific process of the present invention is:

firstly, according to the use scene of a user, the user can set a writing board of one IFP device as a main screen when the writing board is started, and normally use the white board function;

when the writing board of other equipment is started and applied to become the auxiliary screen of the main screen writing board, the main screen writing board synchronizes the current display content and/or the historical operation content to the auxiliary screen for display;

thirdly, on the basis of the second step, the writing board of the main screen continues to operate, newly-added display contents and/or newly-added operation contents are converted into json-format data according to a defined communication protocol in real time and are sent to the auxiliary screen through the network, after the auxiliary screen receives the data, the data are analyzed according to the communication protocol, and the display contents are synchronously newly added on the auxiliary screen and/or newly-added operation consistent with the main screen is executed;

in the same way as the third one, the operation of the auxiliary screen is synchronized to the main screen in the same way;

in the using process, when the auxiliary screen exits synchronization, the main screen is informed not to send the synchronous data any more, and the main screen waits for other writing boards to enter the cooperation as the auxiliary screen;

when the main screen is out of synchronization in the using process, the auxiliary screen is informed that the main screen and the auxiliary screen are out of remote cooperation together, the auxiliary screen is changed into the main screen, and other writing boards are waited to be used as the auxiliary screens to enter the remote cooperation.

Through the scheme, the point-to-point connection and data communication between at least two IFP devices are directly established through the local area network or the wide area network, when a user operates on the writing board of one IFP device, the current display content and the operation content are synchronized to the writing board of the other IFP device in real time, the receiving end can synchronize the current display content and the operation content without waiting for the completion of the operation of the transmitting end, and therefore both sides establishing the connection can annotate and modify the content of the writing board in real time, so that more effective and rapid remote cooperation is established, and the learning efficiency and the working efficiency are improved.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims (6)

1. A method for realizing remote collaboration of a plurality of white boards is characterized in that:

the implementation method is suitable for at least two IFP devices with preset communication protocols, and whiteboard software of the IFP devices establishes communication for an interactive communication channel through a local area network or a wide area network, and comprises the following steps:

step 1, when a user uses one device, starting a writing board of the user and setting the writing board as a main screen;

step 2, starting the writing boards of other equipment and applying for becoming the auxiliary screen of the main screen writing board, wherein the main screen writing board converts the current content into synchronous data according to a preset communication protocol and sends the synchronous data to the auxiliary screen writing board through the communication channel, and the auxiliary screen writing board receives the synchronous data and then analyzes the synchronous data according to the preset communication protocol to obtain the current content of the main screen writing board for synchronous display;

step 3, when the user operates on the main screen writing board/the auxiliary screen writing board, converting newly-added content of the user into synchronous data in real time according to a preset communication protocol, and sending the synchronous data to the auxiliary screen writing board/the main screen writing board through the communication channel, and after receiving the synchronous data, the auxiliary screen writing board/the main screen writing board analyzes according to the preset communication protocol to obtain the newly-added content so as to enable the main screen writing board and the auxiliary screen writing board to be synchronous in real time;

step 4, when the main screen writing board or the auxiliary screen writing board exits, synchronously ending; and when the synchronization is finished, the current contents of the main screen writing board and the auxiliary screen writing board are kept consistent, and the subsequent main screen writing board and the subsequent auxiliary screen writing board have respective display contents and operation contents.

2. The method of claim 1, wherein the plurality of whiteboards enable remote collaboration, and wherein:

in the step 4, when the auxiliary screen writing board exits, the main screen writing board is informed not to send the synchronous data any more, and the main screen writing board waits for the writing board of other equipment to apply for becoming the auxiliary screen.

3. The method of claim 1, wherein the plurality of whiteboards enable remote collaboration, and wherein:

in the step 4, when the main screen writing board exits, the main screen writing board and the auxiliary screen writing board both exit synchronously, the auxiliary screen writing board becomes the main screen, and the writing boards of other devices are waited for applying to become the auxiliary screens.

4. The method of claim 1, wherein the plurality of whiteboards enable remote collaboration, and wherein:

when the number of the IFP equipment is more than two, the IFP equipment establishes communication connection with the server through the local area network or the wide area network, and the server realizes the forwarding of synchronous data among the IFP equipment.

5. The method of claim 1, wherein the plurality of whiteboards enable remote collaboration, and wherein:

in the step 2, the current content includes current display content and/or historical operation content of the main screen writing board.

6. The method of claim 1, wherein the plurality of whiteboards enable remote collaboration, and wherein:

in the step 3, the newly added content includes newly added display content and/or newly added operation content of the main screen writing board/the auxiliary screen writing board.

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