WO2019237675A1

WO2019237675A1 - Whiteboard content displaying method and device, whiteboard device, and server

Info

Publication number: WO2019237675A1
Application number: PCT/CN2018/118478
Authority: WO
Inventors: 梁泰琪
Original assignee: 广州视源电子科技股份有限公司; 广州视臻信息科技有限公司
Priority date: 2018-06-12
Filing date: 2018-11-30
Publication date: 2019-12-19
Also published as: CN110597472A

Abstract

The present invention relates to a whiteboard content displaying method and device, a whiteboard device, and a server. The method comprises: under the premise that a first whiteboard is participating in a shared conference, detecting a change that takes place in a whiteboard content on the first whiteboard; and synchronizing the changed whiteboard content to a second whiteboard participating in the shared conference. The embodiments of the present invention solve the problem in which a local whiteboard cannot display a content written by a user on a remote whiteboard, thus implementing the technical effect of having multiple whiteboards displaying a same content in a shared conference.

Description

Whiteboard content display method, device, whiteboard equipment and server

Technical field

The present invention relates to the technical field of whiteboard, and in particular, to a method, a device, a whiteboard device, a server, and a storage medium for displaying whiteboard content.

Background technique

An electronic whiteboard (hereinafter referred to as a whiteboard) is equivalent to a particularly large electronic writing board. Generally, a special whiteboard software is required. Users can use their fingers or a stylus to write and draw on the whiteboard display. The electronic whiteboard display will In order to display the content written by the user, the display content can be erased electronically. For example, touching the area to be erased with the palm, and moving the palm can erase the display content of the corresponding area. In addition, the whiteboard can also be network-connected with external devices such as mobile phones, PCs, or other whiteboards, which is convenient for users to conduct classroom teaching, live demonstrations, or remote meetings.

In the process of implementing the present invention, the inventors found that the prior art has the following problems. When a conference requires the participation of multiple whiteboards, the whiteboard can only display the content written by the user on the local whiteboard. Content, so participants ca n’t watch what other participants write on other whiteboards.

Summary of the Invention

Based on this, it is necessary to provide a method, a device, a whiteboard device, a server, and a storage medium for displaying a whiteboard content in response to a problem that the whiteboard cannot display content written by other users on other whiteboards in the existing manner.

According to a first aspect of the present invention, a method for displaying whiteboard content is provided, including:

In the state where the first whiteboard participates in the sharing meeting, a change in the content of the whiteboard on the first whiteboard is detected;

The changed whiteboard content is synchronized to a second whiteboard participating in the sharing meeting.

In one of the embodiments, it further includes:

A trigger operation of a target control in the first white board is detected, and a conference option window is displayed in the first white board; the target control is a control for enabling a shared conference function of the first white board;

A trigger operation of any option in the conference option window is detected, and the conference option window in the first whiteboard is replaced with a conference information window.

In one embodiment, the conference option window displays a conference creation option and a conference join option;

And / or, the conference information window displays at least one of a conference code, a conference duration, and a conference end option.

In one embodiment, when a trigger operation of any option in the conference option window is detected, the conference option window in the first whiteboard is replaced with a conference information window, and further includes:

Control the state where the first whiteboard enters the shared meeting.

In one of the embodiments, it further includes:

When the trigger operation of the conference end option is detected, the conference information window displayed on the first whiteboard is exited, and the first whiteboard is exited from the shared conference.

In one embodiment, after the first whiteboard enters the state of the sharing conference, the method further includes:

A video window of a user participating in the sharing conference is displayed in the first whiteboard.

In one embodiment, the video window includes a video window corresponding to the user of the second whiteboard;

Alternatively, the video window includes a video window corresponding to the user of the first whiteboard and a video window corresponding to the user of the second whiteboard.

In one embodiment, the video window is displayed on the top of the display interface of the first whiteboard.

In one of the embodiments, it further includes:

After the first whiteboard is started, the target control is displayed in a display interface of the first whiteboard.

In one embodiment, the target control is displayed in a toolbar of the first whiteboard.

In one embodiment, the conference option window / conference information window is displayed on the left or right of the display interface of the first whiteboard.

In one embodiment, synchronizing the changed whiteboard content to a second whiteboard participating in the sharing meeting, so that the same changes in the whiteboard content of the second whiteboard include:

Get changed whiteboard content;

The content data corresponding to the changed whiteboard content is sent to the server, so that the second whiteboard participating in the sharing meeting obtains the content data through the server, so that the whiteboard content of the second whiteboard changes similarly.

In one embodiment, after detecting an operation signal acting on the conference creation option, the method further includes:

Send a meeting creation request to the server, where the meeting creation request carries the meeting code and identification information of the first whiteboard; receive a confirmation creation response returned by the server, and display a meeting information window in the first whiteboard; the confirmation creation response It is issued by the server after generating a new conference record, and the conference record contains a conference code allocated by the server for the conference;

Alternatively, a conference code is generated and a conference creation message is sent to the server, and the conference creation message includes the conference code and the identification information of the first whiteboard; the conference creation message is used to trigger the server to establish a corresponding conference record and save it.

In one embodiment, after detecting an operation signal acting on the conference joining option, the method further includes:

Displaying a conference code input window through a first whiteboard; the conference code input window is used to receive a conference code input by a user;

Get the conference code entered by the user;

Sending a meeting join request to the server, where the meeting join request carries the meeting code;

Receiving a confirmation joining response returned by the server; the confirmation joining response is sent by the server after determining that a conference record corresponding to the conference code is locally stored;

The whiteboard content of the first whiteboard is cleared, and the whiteboard content of the second whiteboard is displayed in the first whiteboard.

In one embodiment, displaying the whiteboard content of the second whiteboard in the first whiteboard includes:

Send a content request to the server;

Receiving content data sent by the server; the content data is data corresponding to the whiteboard content of the second whiteboard obtained by the server from the second whiteboard;

The whiteboard content of the second whiteboard is displayed on the first whiteboard.

In one embodiment, the conference join request further carries identification information of the first whiteboard;

The meeting joining request is further used to trigger the server to add the identification information of the first whiteboard to the meeting record after determining that the meeting record corresponding to the meeting code is locally stored.

In one of the embodiments, it further includes:

After detecting the triggering operation of the conference end option, sending a conference exit message to the server, where the conference exit message carries identification information of the first whiteboard;

The exit conference message is used to trigger the server to delete the identification information of the first whiteboard from the conference record.

In one embodiment, before displaying the target control in the display interface of the first whiteboard, the method further includes:

Load the shared conference module to the main program of the first whiteboard;

Registering the shared conference module to display the target control in the first whiteboard.

In one of the embodiments, it further includes:

Query the local program module of the first whiteboard during the startup of the first whiteboard;

If a shared conference module exists in the local program module, the step of loading the shared conference module to the main program of the first whiteboard is performed.

Obtaining video information of a user corresponding to the first whiteboard;

Send video information of the user corresponding to the first whiteboard to the server.

In one embodiment, before displaying a video window of a user participating in the sharing conference in the first whiteboard, the method further includes:

The video information of the user corresponding to the second whiteboard sent by the server is received to display the video window of the user corresponding to the second video through the first whiteboard.

In one embodiment, the conference join request is further used to trigger the server to send a first whiteboard join message to the second whiteboard, so that a video window displaying a user corresponding to the first whiteboard is added to the second whiteboard;

And / or, the exit conference message is further used to trigger the server to send a first whiteboard exit message to the second whiteboard, so that the second whiteboard closes the video window of the user corresponding to the first whiteboard.

In one embodiment, the changes in the content of the whiteboard include at least one of the following: adding content, erasing content, adding pages, subtracting pages, and moving.

According to a second aspect of the present invention, a method for displaying whiteboard content is provided, including:

Receiving content data sent by the first whiteboard participating in the sharing meeting, the content data is data corresponding to the changed whiteboard content in the first whiteboard;

Synchronize the content data to a second whiteboard participating in the sharing meeting.

In one embodiment, before receiving the content data sent by the first whiteboard participating in the sharing conference, the method further includes:

Receiving a meeting creation request sent by the first whiteboard;

Assign a conference code to the conference to be created, and generate a corresponding conference record according to the conference code;

Returning a confirmation creation response to the first whiteboard, where the confirmation creation response carries the conference code;

or,

Receiving a meeting join request sent by the first whiteboard, where the meeting join request carries a meeting code;

Query the locally stored meeting record, and if it is determined that a meeting record corresponding to the meeting code exists, return a confirmation joining response to the first whiteboard.

In one embodiment, the conference creation request carries identification information of the first whiteboard, and the conference record generated according to the conference code includes the identification information of the first whiteboard;

The meeting join request carries identification information of the first whiteboard; after querying the locally saved meeting records and determining that a meeting record corresponding to the meeting code exists, the method further includes: adding the identification information of the first whiteboard to the Refer to the corresponding meeting minutes.

In one embodiment, synchronizing the content data to a second whiteboard participating in the sharing conference includes:

Obtaining the identification information of the first whiteboard, and determining a meeting record containing the identification information of the first whiteboard;

Determining a second whiteboard that participates in the shared conference according to the identification information in the conference record;

Sending the content data to the second whiteboard.

In one embodiment, after returning the confirmation creation response / confirmation joining response to the first whiteboard, the method further includes:

Receiving video information uploaded by the first whiteboard;

Sending the video information to a second whiteboard participating in the sharing conference.

Acquiring video information uploaded by a second whiteboard participating in the sharing conference;

Send the video information to the first whiteboard.

In one of the embodiments, it further includes:

Receive the exit conference message sent by the first whiteboard / second whiteboard;

Delete the identification information of the first whiteboard / second whiteboard in the meeting record corresponding to the shared meeting.

In one embodiment, after receiving the exit conference message sent by the first whiteboard / second whiteboard, the method further includes:

Send the first whiteboard exit message / second whiteboard exit message to the second whiteboard / first whiteboard participating in the conference.

In one of the embodiments, it further includes:

If the number of identification information of the whiteboard in the meeting record is detected to be 0, the meeting record is deleted.

According to a third aspect of the present invention, a whiteboard content display device is provided, including:

A detection module, configured to detect a change in the content of the whiteboard on the first whiteboard when the first whiteboard participates in the sharing conference;

A synchronization module, configured to synchronize the changed whiteboard content to a second whiteboard participating in the sharing conference.

In one of the embodiments, it further includes:

A first window display module, configured to detect a trigger operation of a target control in the first whiteboard, and display a conference option window in the first whiteboard; the target control is a control for enabling a shared conference function of the first whiteboard; and

The second window display module is configured to detect a trigger operation of any option in the conference option window, and replace the conference option window in the first whiteboard with a conference information window.

In one of the embodiments, it further includes:

The state switching module is configured to replace a conference option window in the first whiteboard with a conference information window when a triggered operation of any option in the conference option window is detected, and control a state where the first whiteboard enters a shared conference.

In one of the embodiments, it further includes:

The video display module is configured to display a video window of a user participating in the shared conference on the first whiteboard after the first whiteboard enters the state of the shared conference.

In one of the embodiments, it further includes:

The control display module is configured to display the target control in a display interface of the first whiteboard after the first whiteboard is started.

In one of the embodiments, it further includes:

A program initialization module, configured to load the shared conference module to the main program of the first whiteboard before displaying the target control in the display interface of the first whiteboard; register the shared conference module to display the The target control is described.

According to a fourth aspect of the present invention, a whiteboard content display device is provided, including:

The content receiving module is configured to receive content data sent by the first whiteboard participating in the sharing conference, where the content data is data corresponding to the changed whiteboard content in the first whiteboard.

A content forwarding module, configured to synchronize the content data to a second whiteboard participating in the sharing conference.

In one of the embodiments, it further includes:

The conference record generating module is configured to receive the conference creation request sent by the first whiteboard before receiving the content data sent by the first whiteboard participating in the shared conference; assign a conference code to the conference to be created, and generate a corresponding Minutes of meetings; and

A creation response module is configured to return a confirmation creation response to the first whiteboard, where the confirmation creation response carries the conference code.

In one of the embodiments, it further includes:

A joining processing module, configured to receive a meeting joining request sent by the first whiteboard, where the meeting joining request carries a meeting code; and

The joining response module is used to query a locally saved meeting record, and if it is determined that a meeting record corresponding to the meeting code exists, a confirmation joining response is returned to the first whiteboard.

In one embodiment, the conference join request carries identification information of the first whiteboard;

The device further includes:

The meeting record modification module is configured to query the locally saved meeting record and determine that a meeting record corresponding to the meeting code exists, and then add the identification information of the first whiteboard to the corresponding meeting record.

In one of the embodiments, it further includes:

A first video forwarding module, configured to receive video information uploaded by a first whiteboard and send the video information to a second whiteboard participating in the sharing conference;

as well as,

A second video forwarding module is configured to obtain video information uploaded by a second whiteboard participating in the sharing conference, and send the video information to the first whiteboard.

In one of the embodiments, it further includes:

The exit response module is configured to receive the exit conference message sent by the first whiteboard / second whiteboard, and delete the identification information of the first whiteboard / second whiteboard in the meeting record corresponding to the shared meeting.

In one of the embodiments, it further includes:

The exit forwarding module is configured to send the first whiteboard exit message / second whiteboard exit message to the second whiteboard / first whiteboard participating in the conference after receiving the exit conference message sent by the first whiteboard / second whiteboard.

In one of the embodiments, it further includes:

The record deleting module is configured to delete the conference record if the quantity of identification information of the whiteboard in the conference record is 0.

According to a fifth aspect of the present invention, a whiteboard content display system is provided, which includes a server, and a first whiteboard and a second whiteboard that are communicatively connected with the server, respectively;

The first whiteboard is used to send the changed whiteboard content to the server if a change in the whiteboard content on the first whiteboard is detected while participating in the sharing meeting.

A server, configured to receive content data sent by the first whiteboard, and send the content data to the second whiteboard participating in the sharing meeting; the content data is data corresponding to the content of the whiteboard that changes in the first whiteboard;

The second whiteboard is used to control the content of the local whiteboard to change similarly to the first whiteboard according to the content data sent by the server.

According to a sixth aspect of the present invention, there is provided a whiteboard device including a memory, a display screen with a touch function, and a processor; the memory is used to store one or more programs;

When the processor executes the one or more programs, the steps of the method for displaying a whiteboard content according to any one of the foregoing embodiments are implemented.

According to a seventh aspect of the present invention, there is provided a server including a memory and a processor; the memory is configured to store one or more programs;

According to an eighth aspect of the present invention, there is provided a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor, the processor enables the processor to implement the implementation of any of the foregoing embodiments. Steps of the whiteboard content display method.

In the embodiment provided by the present invention, in a state where both the first whiteboard and the second whiteboard participate in the sharing conference, if the content of the whiteboard on the first whiteboard changes, the content of the moving whiteboard will be synchronized to the second whiteboard, thereby participating Multiple whiteboards in a shared meeting can not only display the content written by the user locally, but also display the content written by the user on other whiteboards, thereby achieving the effect of displaying the same whiteboard content through multiple whiteboards participating in a shared meeting, improving the Sharing or display effect of whiteboard.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a system architecture diagram applicable to a method for displaying a whiteboard content in an embodiment; FIG.

2 is a schematic flowchart of a whiteboard content display method according to an embodiment;

3 is a schematic diagram of a whiteboard interface according to an embodiment;

4 is a schematic flowchart of a whiteboard entering a shared conference state according to an embodiment;

5 is a schematic diagram of a whiteboard startup interface according to an embodiment;

6 is a schematic diagram of a whiteboard operation interface according to another embodiment;

7 is a schematic diagram of a whiteboard operation interface according to another embodiment;

8 is a schematic diagram of a display content of a whiteboard according to an embodiment;

9 is a schematic diagram of a display content of a whiteboard according to another embodiment;

10 is a schematic flowchart of a whiteboard content display method according to another embodiment;

11 is a schematic flowchart of a server-side whiteboard content display method according to an embodiment;

12 is a schematic structural diagram of a whiteboard content display device according to an embodiment;

13 is a schematic structural diagram of a whiteboard content display device according to another embodiment;

14 is an internal structural diagram of a whiteboard device in an embodiment;

FIG. 15 is an internal structure diagram of a server in an embodiment.

detailed description

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

Reference to "an embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It is clearly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The whiteboard content display method provided in this application may be applicable to the system architecture shown in FIG. 1; wherein the whiteboard device 102 is communicatively connected with one or more other whiteboard devices 102 through the server 104. The whiteboard device 102 may be a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email sending and receiving device, a game console, an interactive smart tablet, a wearable device, a smart locomotive, Self-driving cars, smart home devices, or a combination of any of these devices. The whiteboard device 102 can be installed with various applications required by the user, such as writing applications, presentation applications, instant messaging applications, image editing applications, social applications, e-commerce applications, Search applications, browser applications, and more. Among them, writing applications such as electronic whiteboards and electronic blackboards, presentation applications such as wireless projection applications, and instant messaging applications such as video conference applications.

In some embodiments, when multiple whiteboard devices 102 are on the same local area network, the whiteboard device 102 may also directly communicate with and connect with other whiteboard devices 102 and use one of the multiple whiteboard devices 102 as a server; in this embodiment There is no need to set up a dedicated server.

It should be noted that the server mentioned in the following embodiments may be a dedicated server or a whiteboard device serving as a server role, which is determined according to a specific application scenario. Among them, the dedicated server can be set on the public network or the local area network.

In the embodiment, the interactive smart tablet is described as an example of the whiteboard device 102. The interactive smart tablet may be an integrated device that uses touch technology to control the content displayed on the display tablet and implement human-computer interactive operations. It integrates one or more functions such as whiteboard function, projector, curtain, sound, TV and video conference terminal.

In an embodiment, the interactive smart flat-panel display is a touch screen, and the touch screen may include a capacitive screen, an electromagnetic screen, or an infrared screen. Generally speaking, the touch screen can receive a touch operation input by a user through a finger or an input device. The input device includes, but is not limited to, a capacitive pen, an electromagnetic pen, and / or an infrared pen.

In an embodiment, the interactive smart tablet establishes a data connection with at least one other interactive smart tablet through a network. The communication method of the data connection is not limited in the embodiment, and may be a communication method such as a USB connection, the Internet, a local area network, Bluetooth, Wi-Fi, or a ZigBee protocol.

Among them, the whiteboard application installed in the interactive smart tablet is used to support the realization of related functions of the whiteboard in the interactive smart tablet. The related functions of the whiteboard include, but are not limited to, human-computer interaction operations such as writing, drawing, erasing, and moving.

In one embodiment, as shown in FIG. 2, a method for displaying whiteboard content is provided. The method is applied to the interactive smart tablet described above as an example, and includes the following steps:

S110. In a state where the first whiteboard participates in the sharing meeting, it is detected that the content of the whiteboard on the first whiteboard changes.

The first whiteboard can be understood as a whiteboard application installed in any of the interactive smart tablets in the above system; the first whiteboard can also be understood as any interactive smart tablet in the above system, and the interactive smart tablet is in a whiteboard mode. The display interface of the first whiteboard includes a writing area and a toolbar, and the toolbar contains whiteboard-related controls, such as one or more of a pen, an eraser, a font, a color, and an addition / subtraction control. The first whiteboard For the display interface, refer to Figure 3. The user can write in the writing area with a finger or a stylus, and accordingly, the handwriting or graphics written by the user will be displayed in the writing area.

The state in which the first whiteboard participates in the sharing conference can be understood as a state in which the first whiteboard has established a communication connection with at least one other first whiteboard through the server. Conditions that may cause the contents of the whiteboard on the first whiteboard to change include, but are not limited to, events such as writing, erasing, adding pages, subtracting pages, or moving.

S120: Synchronize the changed whiteboard content to the second whiteboard participating in the sharing meeting, so that the whiteboard content of the second whiteboard changes similarly.

The second whiteboard is similar to the first whiteboard described above, and can also be understood as a whiteboard application installed in any interactive smart tablet in the above system, or it can refer to any interactive smart tablet itself in the above system, and the interactive smart tablet is in whiteboard mode. . However, it should be noted that the second whiteboard and the first whiteboard cannot be whiteboard applications installed in the same interactive smart tablet, nor can they be the same interactive smart tablet in whiteboard mode.

The whiteboard main program can detect changes in the whiteboard content on the first whiteboard. For example, if the user has performed a writing operation in the writing area, or the user has erased the original content, the whiteboard main program can detect the first The content of the whiteboard on the whiteboard has changed. The main program of the whiteboard can obtain the content data corresponding to the changed whiteboard content on the first whiteboard, deliver the content data to a preset software module, and the software module packages and sends the content data to the second whiteboard. The software module parses the content data and restores the content data that can be recognized by the main program of the second whiteboard, and then the second whiteboard main program can be used to control the same changes in the content of the whiteboard displayed on the second whiteboard.

Through this step, the whiteboard content displayed on the second whiteboard changes the same as the whiteboard content of the first whiteboard. The implementation method may be: acquiring the changed whiteboard content and sending the content data corresponding to the changed whiteboard content to the first Two whiteboards, the second whiteboard changes based on the original content based on the received content data, and finally displays content that is consistent with the whiteboard content of the first whiteboard. For example, the following situations: one is that the content of the whiteboard before the first whiteboard and the second whiteboard are the same (both empty, or both are the same whiteboard content), and then the content of the first whiteboard is detected to increase, and the increased content data is obtained , And send it to the second whiteboard. The second whiteboard further displays the added whiteboard content on the first whiteboard based on the original content; the other is that the whiteboard content of the first whiteboard and the second whiteboard is the same before that. Then, the content of the first whiteboard is detected to be reduced, and the reduced content data is acquired and sent to the second whiteboard. The second whiteboard reduces the same whiteboard content based on the original content. In another case, the first whiteboard, The content of the second whiteboard is the same as the previous whiteboard, and then the content position of the first whiteboard is detected to be moved. The content movement information is obtained and sent to the second whiteboard. The second whiteboard also moves the whiteboard based on the original content. content. It can be understood that the above situations are only examples, and should not be construed as restrictions on content changes.

With the whiteboard content display method of the above embodiment, when multiple whiteboards participate in a conference together, the content written by participants on any whiteboard can be displayed on other whiteboards, such as local participants writing on the local whiteboard After a paragraph of text, remote participants can also see this text through the remote whiteboard, which solves the limitation that the original whiteboard can only display local written content, and improves the sharing / presentation effect in a multi-person conference.

It should be noted that, in the embodiment, the first whiteboard and the second whiteboard are only used to distinguish objects, and should not be understood as limiting the identity of the object. For example, the first whiteboard and the second whiteboard can also exchange identities with each other. It can solve the limitation that the original whiteboard can only display local written content, and improve the sharing / presentation effect in a multi-person conference. That is, when a remote participant writes a text on the remote whiteboard, the local participant can also watch this text through the local whiteboard.

In addition, in the above embodiment, the method for displaying whiteboard content is described from the perspective of the first whiteboard. The second whiteboard corresponding to the first whiteboard may be one or multiple second whiteboards. The first whiteboard and several second whiteboards. Participate in a conference together through a server communication connection.

In an embodiment, software modules for implementing a shared conference function, such as a shared conference module, are preset in the first whiteboard and the second whiteboard that participate in the shared conference, and are implemented through the cooperation between the whiteboard main program and the shared conference module. The content display between the first whiteboard and the second whiteboard is synchronized. Referring to FIG. 4 to FIG. 7, the process from the startup of the first whiteboard and the second whiteboard corresponding to the first whiteboard to joining the same conference may include the following steps. The whiteboard in the following embodiments may refer to the first whiteboard. , Can also be understood as the second whiteboard corresponding to the first whiteboard.

S401: When the whiteboard is started, query the local program module of the whiteboard.

S402: Whether a shared conference module exists in the local program module, and if yes, perform the next step; otherwise, the whiteboard cannot join the conference and ends.

The shared conference module can include a series of conference service programs, such as: remote audio service program, video service program, whiteboard transfer service program, conference user management service program, etc., which are used to provide remote audio and video conference capabilities.

The local program module of the whiteboard may be a local dynamic link library, and the shared conference module may be preset in the local dynamic link library of the first whiteboard in the form of a binary dynamic link library. In some embodiments, during the startup process of the whiteboard, the main program will load all dynamic link libraries in the same directory as the main program, and find the entry classes marked by the module entry interface (such as Module) in the dynamic link library. Class, the lookup is successful.

S403: If a shared conference module exists in the local program module, load the shared conference module into the main program of the whiteboard.

Among them, the main program can be run independently or run after loading the shared conference module, that is, the main program does not depend on the shared conference module. Conversely, the shared conference module cannot run independently of the main program, and it can only run after it is loaded by the main program.

In some embodiments, the shared conference module can be loaded through the external interface of the main program, and the shared conference module also provides a module entrance for the main program, for example, an operation signal of a certain control on the whiteboard UI interface is used as the module entrance.

S404. Register the shared conference module to display a corresponding control (ie, a target control) on the whiteboard; the user can turn on the whiteboard's shared conference function by operating the target control; the main program of the first whiteboard uses the target control's The trigger event calls the shared conference module for the module entry.

In the embodiment, the shared conference module is initialized through the external interface of the main program, and the external interface of the main program is used for event registration and interaction with the main program. Shared conference module initialization: The shared conference module initializes internal service modules such as audio, video, and user management.

After the loading is completed, the shared conference module is initialized through the entry class marked by Module, including: the shared conference module performs object construction operations, and provides the initialized object to the main program through the public interface, so that The main program calls the object of the shared conference module through the public interface.

In some embodiments, when the shared conference module is loaded, a control 10, that is, a target control, may be displayed on the whiteboard display interface through the main program of the whiteboard. As shown in FIG. The lower corner, or displayed in the toolbar of the whiteboard; currently, it can also be displayed in other positions in the whiteboard interface. The user clicks on the control 10 to trigger the function entrance of the shared conference module, thereby starting the function of the whiteboard shared conference module. Before the whiteboard starts the function of the shared conference module, it can only display the content written locally. It cannot display the content written on other whiteboards. Even if the whiteboard has established a communication connection with other whiteboards.

S405, the user clicks on the control 10 in the whiteboard to display a conference option window through the whiteboard; the conference option window includes a conference creation option and a conference join option, as shown in FIG.

It should be noted that, in the embodiment shown in FIG. 6, after the whiteboard displays the conference option window, the display of the control 10 in the whiteboard interface is not affected. In some other embodiments, it can also be set to when the whiteboard displays the conference option window After that, the display of the control 10 is exited.

S406. The user clicks the meeting creation option or the meeting joining option. After that, the whiteboard displays a meeting information window, as shown in FIG. 7, indicating that the whiteboard has entered the shared conference state.

It should be noted that, in the embodiment shown in FIG. 7, when the whiteboard displays the conference information window, the display of the control 10 in the whiteboard interface is not affected. In other embodiments, it can also be set to display the conference information window when the whiteboard displays the conference information window. After that, the display of the control 10 is exited.

In one embodiment, when the user clicks the conference creation option, a conference is created. The process of creating a conference may include: sending a conference creation request to the server, the conference creation request carrying identification information of a whiteboard for creating the conference; receiving A confirmation creation response returned by the server; the confirmation creation response is sent by the server after generating a new meeting record, the meeting record contains a meeting code assigned by the server for the meeting; and a meeting information window is displayed in the whiteboard for creating the meeting. That is, in one embodiment, when the whiteboard receives the confirmation creation response returned by the server, the whiteboard enters a shared conference state. In this embodiment, the conference code is generated by the server, which reduces the burden on the whiteboard end and prevents the conference code from being repeated.

In another embodiment, when the user clicks the conference creation option, a conference will be created. The process of creating a conference may include: generating a conference code on the whiteboard end, and sending a conference creation message to the server. The conference creation message includes the conference code and The identification information of the whiteboard that created the meeting; the server creates a corresponding meeting record and saves it after receiving the meeting creation message. Further, in one embodiment, when the whiteboard receives the meeting record generation response returned by the server, the whiteboard enters a shared conference state. That is, in this embodiment, the conference code is generated by the whiteboard side that creates the conference, which reduces the load on the server.

In one embodiment, when a plurality of whiteboards are directly connected and one of the whiteboards is used as a server, the whiteboard used to create a conference may be used as a server. Correspondingly, when the user clicks the conference creation option on the whiteboard, a conference code is generated on the whiteboard end, and a corresponding conference record is established based on the conference code and the identification information of the whiteboard and saved locally, and the whiteboard enters the shared conference state. . That is, in this embodiment, the meeting code and the meeting record are generated by the whiteboard that creates the meeting, and the whiteboard also serves as the server for the shared meeting that is currently created. This embodiment does not need to set up a dedicated server. Interaction with a dedicated server improves the efficiency of meeting creation.

The conference code can be a series of numbers or a series of other characters, which can be set according to specific conditions. When creating a conference, a conference code can be generated according to a preset rule, for example, a conference number is generated in sequence, or a conference code can be generated randomly, for example, a string of 4 or 6 characters is randomly generated.

The identification information of the whiteboard can be the device ID of the whiteboard, the MAC address of the whiteboard, or the network address of the whiteboard, as long as it can distinguish multiple whiteboards participating in a shared meeting.

The meeting record saved on the server contains the meeting code and the identification information of the whiteboard that created the meeting. In addition, it can also include the meeting creation time. If other whiteboards are added to the meeting, the meeting record also includes the current participation and sharing. The identification information of other whiteboards in the conference can even include the time information of other whiteboards joining / exiting the conference. After all the whiteboards participating in the shared meeting have exited the meeting, the server can delete the meeting record according to the sequence of the creation of the meeting record.

In another embodiment, the user can also click the conference join option to make the whiteboard join an existing conference. The process of joining the conference includes: if an operation signal acting on the conference join option is detected, the conference code is displayed on the whiteboard. Input window, the conference code input window is used to receive the conference code input by the user; after the user enters the conference code to be added to the conference, the shared conference module of the whiteboard obtains the conference code entered by the user, and sends a conference join request to the server, and the conference joins The request carries the meeting code entered by the user; the server queries whether there is a corresponding meeting record locally according to the meeting code sent by the whiteboard, and if so, returns a confirmation joining response to the whiteboard. In addition, in order to record the participation of the meeting, the meeting join request sent by the whiteboard also carries the identification information of the whiteboard to trigger the server to determine that the meeting record corresponding to the meeting code is stored locally after receiving the meeting join request. You can also add the identification information of the whiteboard to the corresponding meeting record.

The whiteboard joining the meeting receives the confirmation join response returned by the server. First, the local whiteboard content is cleared, and a content request is sent to the server. After receiving the content request, the server obtains the whiteboard content of any other whiteboard previously participating in the meeting and feeds it back to The whiteboard that joins the meeting. The whiteboard that joins the meeting receives the whiteboard content data returned by the server and displays the corresponding content. As a result, the whiteboard joins the meeting, and the whiteboard that joins the meeting will display the same whiteboard as the other whiteboards that participated in the meeting Whiteboard content.

In one embodiment, after the whiteboard enters the state of the shared conference, the conference information window is displayed through the whiteboard; the conference information window includes at least one of a conference code, a conference duration, and a conference ending option, as shown in FIG. 7. It should be noted that in the embodiment shown in FIG. 7, in the conference information window displayed on all whiteboards participating in the shared conference, the conference duration is the same, and is uniformly the duration since the successful creation of the shared conference; in some other embodiments In the conference information window displayed on each whiteboard participating in the shared conference, the conference duration may also be different. For example, the conference duration may also be the duration since the local whiteboard joined the corresponding shared conference.

In one embodiment, after the whiteboard enters the state of the shared conference, the video window of the user currently participating in the shared conference will also be displayed on the whiteboard; it includes both the video window of the user corresponding to the whiteboard and other corresponding users of the whiteboard participating in the shared conference. Video window; or a video window containing only the corresponding users of other whiteboards participating in the sharing meeting. The display effect can be as shown in Figure 7; specifically, the implementation method can be as follows:

After a whiteboard A enters the sharing conference, the video information of the user obtained by the camera of the whiteboard A is acquired, and the video window corresponding to the local user is displayed through the whiteboard A; at the same time, a video request is sent to the server, and the video request includes the conference code, The server determines other whiteboards currently participating in the conference according to the video request, obtains the video information uploaded from the other whiteboards to the server, and sends it to whiteboard A. Whiteboard A receives the video information sent by the server and can display the video window of the corresponding user of the other whiteboards through whiteboard A. It should be noted that after participating in the meeting, each whiteboard will upload the locally acquired video information to the server in real time, the server saves the video information uploaded by the whiteboard, and establishes the first association between the video information and the identification information of the whiteboard, and establishes The second association of the video information with the conference code of the meeting in which the whiteboard participates. When a whiteboard newly joins a meeting, the server can obtain videos of other whiteboards participating in the meeting and send them to the newly-added whiteboards according to the meeting code, and at the same time send video information uploaded by the newly-added whiteboards to each of the other whiteboards. On multiple whiteboard displays participating in a shared meeting, you can see the video windows of all users currently participating in the shared meeting.

In one embodiment, if the whiteboard A is a whiteboard for creating a conference, and it also serves as a server, the whiteboard A does not need to upload video information of the local user, and other whiteboards joining the shared conference send their respective video information to the whiteboard A; A is also responsible for distributing the local video information and the video information of other whiteboards received, so that the whiteboard side participating in the shared meeting can display all the video windows of the whiteboard side of the conference.

It should be noted that, during the sharing conference, the server distributes video information to each whiteboard, and the server synchronizes the changed whiteboard content data with each whiteboard. The two can be in a parallel relationship.

Optionally, a video window of a user participating in the sharing meeting may be displayed at the top of the whiteboard interface, so as not to affect the operation of the user on the whiteboard. In addition, in one embodiment, the video window of the local whiteboard user may be displayed first, and the video windows of other whiteboard users may be displayed later.

In an embodiment, after the first whiteboard and the second whiteboard join the conference, whiteboard writing is performed locally on the first whiteboard, and the written content can also be displayed synchronously on the second whiteboard corresponding to the first whiteboard. As shown in FIG. 8, for example, the user draws a circle on the first white board, and simultaneously displays a circle on the second white board, and the size of the circle is the same as the size of the display screen of the white board. Then, the user wrote "China" in the circle on the second whiteboard, and "China" was also displayed synchronously in the circle on the first whiteboard. The font type, font size, and color were all the same. The display effect is shown in Figure 9.

In an embodiment, to realize content display synchronization of the first whiteboard and the second whiteboard corresponding to the first whiteboard, it is also necessary to convert the received content data of the other party into the local whiteboard main program through the shared conference module of the second whiteboard. The processed data may be as follows: the main program of the first whiteboard detects a change in the content of the local whiteboard, obtains the changed whiteboard content data, and provides the shared conference module of the first whiteboard and the shared conference module of the first whiteboard through the corresponding interface. Package the changed content data of the local whiteboard and send it to the server; the content data sent to the server can include: the position of the element in the whiteboard (actual coordinate position or relative position), its own set of points, the element ID, color, and other attributes . This content data is sent to the shared whiteboard meeting module of the second whiteboard through the server. The shared whiteboard meeting module of the second whiteboard restores the received data to content data that can be recognized by the main program of the second whiteboard, thereby controlling the whiteboard content of the second whiteboard. The same thing happened.

S209. After the second whiteboard receives the content change data packet sent by the server, the shared conference module of the second whiteboard can restore the data of the data packet to the data recognized by the main program through the external interface registered by the main program during initialization. The main program can control the whiteboard content on the second whiteboard to change accordingly.

In addition, in an embodiment, when the user performs a conference exit operation on the first whiteboard / second whiteboard, for example, when the user clicks the logout option in the conference information window, or when the user clicks the control 10 in the whiteboard interface again, Or when the user performs other operations for exiting the shared conference, the above-mentioned whiteboard content display method further includes: detecting a conference exit operation instruction of the first whiteboard / second whiteboard, and exiting the conference information window on the first whiteboard / second whiteboard Display and send the first whiteboard exit message / second whiteboard exit message to the server. After receiving the first whiteboard exit message / second whiteboard exit message, the server deletes the first whiteboard / second whiteboard from the corresponding meeting record. Identify the information and send a first whiteboard exit message / second whiteboard exit message to the second whiteboard / first whiteboard so that the second whiteboard / first whiteboard closes the video window corresponding to the first whiteboard / the video window corresponding to the second whiteboard .

With the method for displaying whiteboard content in the above embodiment, it is only necessary to set a shared conference module in advance on the whiteboard. When the whiteboard starts, the shared conference module is automatically loaded and registered. After that, if the user needs to add the whiteboard to the shared conference , You can operate the corresponding controls (module UI interface) on the whiteboard UI interface, and then synchronize the content display of the multi-party whiteboards participating in the shared conference under the function of the whiteboard's shared conference module; because the shared conference module can be separated from the whiteboard's The main program can be quickly integrated into multiple whiteboard products, such as whiteboard products used in conferences, education, and / or medical treatment, and can easily upgrade / update shared conference modules, reducing the degree of coupling between program modules, Improve code maintainability.

With reference to the above embodiment, the following describes the implementation process of the whiteboard content display method from the aspects of the interaction process of the local whiteboard, server, and remote whiteboard with reference to FIG. 10, where the whiteboard installed in the interactive smart tablet A serves as a local Whiteboard, the whiteboard installed in the interactive smart tablet B is used as the remote whiteboard; the specific process of displaying the whiteboard content is as follows:

S001, start the interactive smart tablet A, and open the local whiteboard.

A control for starting a shared conference is displayed on the open interface of the local whiteboard. Refer to control 10 shown in FIG. 4.

S002, the user clicks on control 10 in the local whiteboard interface to display the conference option window in the local whiteboard. The conference option window displays the conference creation option and conference join option.

S003, the user clicks the conference creation option, and the local whiteboard sends a conference creation request to the server, and the conference creation request includes identification information of the local whiteboard.

S101. The server receives the conference creation request, allocates a conference code for the currently created conference, and the server also generates a conference record. The conference record contains the conference code and the identification information of the local whiteboard, and saves the conference record on the server.

S102. The server returns a confirmation creation response to the local whiteboard, and the response includes the conference code.

S004, the local whiteboard receives the confirmation creation response returned by the server, and the conference is successfully created. The meeting option window in the local whiteboard is replaced by the conference information window. The local whiteboard enters the state of sharing the conference and waits for the remote whiteboard to join the conference.

S201. Start the interactive smart tablet B and open the remote whiteboard.

A control for starting a shared conference is also displayed on the open interface of the remote whiteboard. Refer to the control 10 shown in FIG. 4.

S202. If the user of the remote whiteboard clicks on the control 10 in the interface, the conference option window is displayed on the remote whiteboard interface. The conference option window displays the conference creation option and conference join option.

S203, the user of the remote whiteboard clicks the conference join option, and the remote whiteboard displays a conference code input window. The user enters the conference code. The remote whiteboard obtains the conference code entered by the user, and sends a conference join request to the server. The conference code described above also contains the identification information of the remote whiteboard.

S103. The server receives the meeting join request, and inquires whether there is a meeting record corresponding to the meeting code locally, and if so, returns a confirmation joining response to the remote whiteboard, and adds the identification information of the remote whiteboard to the corresponding meeting record.

So far, both the local whiteboard and the remote whiteboard have participated in the conference.

S005. Obtain the first video information of the local whiteboard user, and upload the first video information to the server.

S205 obtains the second video information of the remote whiteboard user, and uploads the second video information to the server.

After receiving the video information uploaded by the whiteboard, the server can determine the meeting in which the whiteboard participates according to the identification information of the uploaded whiteboard, and then determine the other whiteboards participating in the meeting, and distribute the received video information to other whiteboards. In this embodiment, it is:

S104, the server sends the video information of the local whiteboard to the remote whiteboard; and, S105, the server also sends the video information of the remote whiteboard to the local whiteboard,

S006, displaying the video window of the user of the local whiteboard and the remote whiteboard on the local whiteboard;

S206. Display the video window of the user of the local whiteboard and the remote whiteboard on the remote whiteboard.

S007. In addition, the local whiteboard as the creator of the meeting, if the content of the whiteboard when the local whiteboard creates the meeting is not empty, it further includes the steps of obtaining the initial whiteboard content of the local whiteboard and sending the initial whiteboard content to the server.

S207. As the remote whiteboard of the joining party, after joining the conference, the content of the whiteboard displayed locally will be cleared first, and a content request will be sent to the server.

S106: After receiving the content request, the server queries the meeting record according to the identification information of the remote whiteboard, and can determine the meeting in which the remote whiteboard participates, and determine the local whiteboard participating in the meeting, obtain the initial whiteboard content corresponding to the local whiteboard, and send it Remote whiteboard.

S208. After receiving the initial whiteboard content of the local whiteboard, the remote whiteboard parses the data, and then displays the initial whiteboard content of the local whiteboard on the remote whiteboard.

At this point, the initialization of the local whiteboard and remote whiteboard to participate in the shared conference is completed.

After that, if the content of the whiteboard changes at any end participating in the sharing meeting, the display content of each whiteboard participating in the sharing meeting will be updated. E.g:

S008, if the local whiteboard user performs a new writing operation on the local whiteboard, such as newly writing the text "target" based on the original display content; the user's writing track is obtained through the local whiteboard, and the local whiteboard main program is used locally. "Target" is displayed on the whiteboard interface; at the same time, the shared conference module of the local whiteboard will obtain the changed content data through the external interface of the main program, and package the changed content data and send it to the server.

In this step, if any operation event that changes the content of the whiteboard is detected, the shared conference module of the local whiteboard can obtain the changed content data through the main program, and send the changed content data to the server in a certain format, which is beneficial to Reduce the amount of data sent.

S107. After receiving the changed content data sent by the local whiteboard, the server determines the shared conference in which it participates according to the identification information of the local whiteboard, and then determines the remote whiteboard participating in the shared conference, and sends the changed content to the remote whiteboard. data.

S209. After the remote whiteboard receives the changed content data sent by the server, the shared conference module of the remote whiteboard can restore the data to the data recognized by the main program through the external interface registered by the main program during initialization. The content of the whiteboard on the remote whiteboard can be controlled to make corresponding changes, that is, the original "whiteboard" content on the remote whiteboard is further controlled to display the word "target".

The data before the restoration can be a class entity, which contains all the attributes of this entity, and the entity is converted into a binary data stream through serialization. The binary data stream is converted into a copy of the original entity by deserialization, and the attributes of the copy are assigned by the deserialized data. In this way, the remote data can be restored to the main data that the local main program can recognize and added to the local whiteboard, so that the content of the local whiteboard is the same as the content of the remote whiteboard.

It should be noted that in the embodiment, the local whiteboard and the remote whiteboard are only used to distinguish the objects, and should not be understood as limiting the identity of the object. For example, the local whiteboard and the remote whiteboard can also exchange identities with each other, which can also solve the problem. The limitation that the original whiteboard can only display locally written content is improved, and the sharing / presentation effect during a multi-person conference is improved. That is, when the remote participants write on the remote whiteboard, the local participants can also watch the corresponding writing content through the local whiteboard.

In some other embodiments, if a whiteboard for creating a conference is used as a server, the method for synchronizing the content of a changed whiteboard in one whiteboard to other whiteboards participating in a shared conference may be:

If the whiteboard content of the whiteboard serving as the server changes, the changed whiteboard content is acquired, and the content data is sent to other whiteboards participating in the sharing meeting, so that the whiteboard content of the other whiteboards also changes. If the whiteboard content of other whiteboards changes, obtain the changed whiteboard content, send the content data to the whiteboard that is the server, and the server whiteboard sends the content data to the other whiteboards participating in the sharing meeting, so that the whiteboard content of the whiteboards participating in the sharing meeting Both have undergone the same changes.

In one embodiment, as shown in FIG. 11, the method of displaying the content of the whiteboard is applied to the server as an example. The execution subject of each step can be understood as a server or a corresponding processor in the server. The server It can be a dedicated server or a whiteboard device that acts as a server. The steps of the method for displaying whiteboard content in this embodiment include:

S510. Receive content data sent by a first whiteboard participating in a sharing conference, where the content data is data corresponding to a changed whiteboard content in the first whiteboard.

S520: Synchronize the content data to a second whiteboard participating in the sharing conference, so that the whiteboard of the second whiteboard

The content changes the same as the first whiteboard.

In an embodiment, the method for displaying content on the whiteboard further includes: before receiving the content data sent by the first whiteboard participating in the sharing conference, receiving a meeting creation request sent by the first whiteboard; assigning a conference code to the conference to be created, according to The conference code generates a corresponding conference record; a confirmation creation response is returned to the first whiteboard, and the confirmation creation response carries the conference code.

Further, in an embodiment, the conference creation request carries identification information of the first whiteboard, and the conference record generated according to the conference code includes the identification information of the first whiteboard.

Thereby, the first whiteboard can be brought into a shared conference state, and a window for the shared conference is displayed, such as the above-mentioned conference information window.

In an embodiment, the method for displaying content on the whiteboard further includes: before receiving content data sent by the first whiteboard participating in the sharing conference, receiving a meeting join request sent by the first whiteboard, the meeting join request carrying a conference code; query If it is determined that a conference record corresponding to the conference code exists in the locally stored conference record, a confirmation joining response is returned to the first whiteboard.

Further, in an embodiment, the meeting join request carries identification information of the first whiteboard; after querying the locally saved meeting record and determining that a meeting record corresponding to the meeting code exists, the method further includes: The identification information of the first white board is added to the corresponding meeting record.

Thereby, the first whiteboard can also be brought into a shared conference state, and a window corresponding to the shared conference can be displayed, such as the above-mentioned conference information window.

According to the foregoing embodiment, for any whiteboard, a shared conference state can be entered by creating a conference, or a shared conference state can be entered by joining a conference. The difference is that after the shared conference created by the former, wait for other whiteboards to participate in the shared conference by joining the conference. The latter needs to know the conference code of the shared conference before joining the shared conference created by other whiteboards.

In an embodiment, the server may synchronize the content data to the second whiteboard participating in the sharing meeting. The server may also obtain the identifier of the first whiteboard when receiving the content data sent by the first whiteboard. Information, a meeting record containing identification information of the first whiteboard is determined in the local meeting record; a second whiteboard participating in the shared meeting is determined according to the identification information in the meeting record; and sending the second whiteboard to the second whiteboard Content data.

In this embodiment, the whiteboard content of any whiteboard participating in the sharing meeting is changed, and the other whiteboards can obtain the changed content data through the server, and the whiteboard content of other whiteboards can also be changed in the same way to improve the conference sharing effect.

In an embodiment, after returning the confirmation creation response / confirmation joining response to the first whiteboard, the method further includes: receiving video information uploaded by the first whiteboard; and sending the video information to the second whiteboard participating in the sharing conference.

According to the above embodiment, other whiteboards participating in the sharing conference can be caused to display the video window of the first whiteboard user, or other whiteboards that have previously participated in the sharing conference can display the video of the first whiteboard user currently joining the conference Window to improve meeting effect.

In an embodiment, after returning the confirmation creation response / confirmation joining response to the first whiteboard, the method further includes: acquiring video information uploaded by the second whiteboard participating in the sharing conference; and sending the video information to the first whiteboard.

Through the above embodiments, all whiteboards participating in the shared conference can display the video windows of the users who are currently participating in the conference, improving the conference effect.

In one embodiment, the method for displaying whiteboard content further includes: receiving a message for exiting a meeting sent by the first whiteboard / second whiteboard; and deleting the identification information of the first whiteboard / second whiteboard in a meeting record corresponding to the shared meeting .

In addition, after receiving the exit conference message sent by the first whiteboard / second whiteboard, the first whiteboard exit message / second whiteboard exit message may also be sent to the second whiteboard / first whiteboard participating in the conference.

According to the above embodiment, when a whiteboard exits a shared conference, other whiteboards participating in the shared conference can be notified in time through the server. In addition, after receiving the message that the whiteboard exits, other whiteboards can also close the corresponding video window displayed locally. .

In one embodiment, the method for displaying whiteboard content further includes: after deleting the identification information of the first whiteboard / second whiteboard in the meeting record corresponding to the shared meeting, if the whiteboard in the meeting record is detected, The number of identification information is 0, and the meeting record is deleted.

With this embodiment, the server can delete the conference records that have ended in time to avoid wasting server storage space.

It should be understood that, for the foregoing method embodiments, although the steps in the flowchart are sequentially displayed according to the directions of the arrows, these steps are not necessarily performed sequentially in the order indicated by the arrows. Unless explicitly stated in this document, the execution of these steps is not strictly limited, and these steps can be performed in other orders. Moreover, at least a part of the steps in the flowchart of the method embodiment may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily performed at the same time, but may be performed at different times. These sub-steps Or the execution order of the phases is not necessarily performed sequentially, but may be performed in turn or alternately with other steps or at least a part of the sub-steps or phases of other steps.

Based on the same idea as the whiteboard content display method in the above embodiments, a corresponding whiteboard content display device is also provided herein.

In one embodiment, the whiteboard content display device shown in FIG. 12 may be applied to a whiteboard device. The whiteboard content display device of this embodiment includes a detection module 601 and a synchronization module 602, and each module is described in detail as follows:

A detection module 601 is configured to detect a change in the content of the whiteboard on the first whiteboard when the first whiteboard participates in the sharing conference.

A synchronization module 602 is configured to synchronize the changed whiteboard content to a second whiteboard participating in the sharing conference.

In one embodiment, the above whiteboard content display device further includes:

In one embodiment, the conference option window displays a conference creation option and a conference join option; and / or, the conference information window displays at least one of a conference code, a conference duration, and a conference end option.

The exit module is configured to detect a trigger operation of the conference end option, exit the conference information window displayed on the first whiteboard, and exit the shared conference from the first whiteboard.

The video display module is configured to display a video window of a user participating in the sharing conference on the first whiteboard.

In an embodiment, the video window includes a video window corresponding to the user of the second whiteboard;

In one embodiment, the target control is displayed on a toolbar of the first whiteboard.

In an embodiment, the synchronization module 602 includes:

A content acquisition submodule for acquiring changed whiteboard content; and

A sending submodule, configured to send content data corresponding to the changed whiteboard content to the server, so that the second whiteboard participating in the sharing meeting obtains the content data through the server, so that the whiteboard content of the second whiteboard occurs the same Changes.

A first conference creation module, configured to send a conference creation request to the server, where the conference creation request carries the conference code and the identification information of the first whiteboard; and receive a confirmation creation response returned by the server to display on the first whiteboard Meeting information window; the confirmation creation response is issued by the server after generating a new meeting record, and the meeting record includes a meeting code assigned by the server for the meeting; or,

The second conference creation module is configured to generate a conference code and send a conference creation message to the server. The conference creation message includes the conference code and the identification information of the first whiteboard; the conference creation message is used to trigger the server to generate a corresponding conference record and save.

The joining request module is configured to display a meeting code input window through the first whiteboard after detecting an operation signal acting on the meeting joining option; the meeting code input window is used to receive a meeting code input by a user; Conference code; sending a conference join request to the server, where the conference join request carries the conference code;

The joining initialization module is configured to receive a confirmation joining response returned by the server and clear the whiteboard content of the first whiteboard; the confirmation joining response is sent by the server after determining that a meeting record corresponding to the meeting code is locally stored;

The content display module is configured to display the whiteboard content of the second whiteboard on the first whiteboard after clearing the whiteboard content of the first whiteboard.

In one embodiment, the content display module includes:

A content request submodule, for sending a content request to the server;

A content receiving submodule, configured to receive content data sent by the server; the content data is data corresponding to the whiteboard content of the second whiteboard obtained by the server from the second whiteboard; and,

The content display submodule is configured to display the whiteboard content of the second whiteboard on the first whiteboard.

In an embodiment, the meeting join request also carries identification information of the first whiteboard; the meeting join request is further used to trigger the server to determine that the meeting record corresponding to the meeting code is stored locally before The identification information of the first white board is added to the meeting record.

The exit report module is configured to send a logout message to the server after the trigger operation of the conference end option is detected, where the logout message carries identification information of the first whiteboard; the logout message is used to trigger the server Delete the identification information of the first whiteboard from the meeting record.

The program initialization module is configured to load a main program of the shared conference module to the first whiteboard; register the shared conference module to display the target control in the first whiteboard.

The program loading module is used to query the local program module of the first whiteboard during the startup process of the first whiteboard; if a shared conference module exists in the local program module, the step of loading the shared conference module to the main program of the first whiteboard is performed.

The video sending module is configured to obtain video information of the user corresponding to the first whiteboard; and send video information of the user corresponding to the first whiteboard to the server.

The video receiving module is configured to receive the video information of the user corresponding to the second whiteboard sent by the server, so as to display the video window of the user corresponding to the second video through the first whiteboard.

In an embodiment, the conference join request is further used to trigger the server to send a first whiteboard join message to the second whiteboard, so that a video window displaying a user corresponding to the first whiteboard is added to the second whiteboard;

In an embodiment, the changes in the whiteboard content in the above embodiment include at least one of the following: adding content, erasing content, adding pages, subtracting pages, and moving.

In one embodiment, the whiteboard content display apparatus shown in FIG. 13 may be applied to a server. The whiteboard content display apparatus of this embodiment includes a content receiving module 701 and a content forwarding module 702, and each module is described in detail as follows:

The content receiving module 701 is configured to receive content data sent by the first whiteboard participating in the sharing conference, where the content data is data corresponding to the content of the whiteboard that changes in the first whiteboard.

The content forwarding module 702 is configured to synchronize the content data to a second whiteboard participating in the sharing conference.

A conference record generating module, configured to receive a conference creation request sent by the first whiteboard, allocate a conference code to a conference to be created, and generate a corresponding conference record according to the conference code; and

The join processing module is configured to receive a meeting join request sent by the first whiteboard, and the meeting join request carries a meeting code; and the join response module is used to query a locally saved meeting record, and if it is determined that the meeting code corresponds to And return a confirmation join response to the first whiteboard.

In one embodiment, the conference creation request carries identification information of the first whiteboard, and the conference record generated according to the conference code includes the identification information of the first whiteboard.

In an embodiment, the meeting join request carries identification information of the first whiteboard; the above-mentioned whiteboard content display device further includes a meeting record modification module for querying locally saved meeting records to determine that the meeting exists After the meeting record corresponding to the code, the identification information of the first whiteboard is added to the corresponding meeting record.

In one embodiment, the content forwarding module 702 includes:

A record determining submodule, configured to obtain identification information of the first whiteboard and determine a meeting record containing the identification information of the first whiteboard;

A target whiteboard determination submodule, for determining a second whiteboard participating in the shared conference according to the identification information in the conference record; and,

A sending submodule, configured to send the content data to the second whiteboard.

The first video forwarding module is configured to receive video information uploaded by the first whiteboard and send the video information to the second whiteboard participating in the sharing conference.

The second video forwarding module is configured to obtain the video information uploaded by the second whiteboard participating in the sharing conference after returning the confirmation creation response / confirmation joining response to the first whiteboard; and sending the video information to the first whiteboard.

For the specific limitation of the whiteboard content display device, refer to the foregoing limitation on the display method of the whiteboard content, which will not be repeated here. Each module in the whiteboard content display device can be implemented in whole or in part by software, hardware, and a combination thereof. The above-mentioned modules may be embedded in the processor in the form of hardware or independent of the processor in the whiteboard device, or may be stored in the form of software in the memory of the whiteboard device, so that the processor can call and execute the operations corresponding to the above modules.

In addition, in the implementation of the whiteboard content display device of the above example, the logical division of each program module is merely an example. In actual applications, according to the requirements of the configuration of the corresponding hardware or the convenience of software implementation, the above The function allocation is completed by different program modules, that is, the internal structure of the whiteboard content display device is divided into different program modules to complete all or part of the functions described above.

In one embodiment, a whiteboard content display system is provided. The system includes a server, and a first whiteboard and a second whiteboard that are communicatively connected to the server, respectively. In this system, the first whiteboard is used to send the changed whiteboard content to the server if a change in the whiteboard content on the first whiteboard is detected while participating in the sharing meeting; the server is used to receive the first whiteboard. The content data is sent to the second whiteboard participating in the sharing meeting; the content data is data corresponding to the changed whiteboard content in the first whiteboard; and the second whiteboard is used for the content sent by the server The data controls the content of the local whiteboard to be changed in the same way as the first whiteboard.

Both the first whiteboard and the second whiteboard in the system are provided with a shared conference module. For details about the shared conference module, reference may be made to the foregoing embodiments, and details are not described herein.

In one embodiment, a whiteboard content display system is also provided. The system includes a first whiteboard and a second whiteboard, and the first whiteboard and the second whiteboard are on the same local area network. In this system, the first whiteboard is used to act as a server in a state of participating in a sharing conference. If a change in the content of the whiteboard on the first whiteboard is detected, the content data of the changed whiteboard content is sent to participating in the sharing. The second whiteboard of the conference; the second whiteboard is used to control the content of the local whiteboard to change the same as the first whiteboard according to the received content data.

Further, in an embodiment, the second whiteboard is further configured to send the changed whiteboard content to the first whiteboard if a change in the content of the whiteboard on the local side is detected in the state of participating in the sharing meeting; The whiteboard is further configured to control the whiteboard content of the first whiteboard to undergo the same change as the second whiteboard according to the received content data, and send the content data to the third whiteboard participating in the sharing meeting, so that the whiteboard of the third whiteboard The content changes the same as the second whiteboard. The third whiteboard is also in the same local area network.

The first whiteboard, the second whiteboard, and the third whiteboard in the system are all provided with a shared conference module. For details about the shared conference module, reference may be made to the foregoing embodiments, and details are not described herein.

In one embodiment, a whiteboard device is provided. The whiteboard device may be an interactive smart tablet, and its internal structure diagram may be as shown in FIG. 14. The whiteboard device includes a processor, a memory, a network interface, a display screen, and an input device connected through a system bus. The processor is used to provide computing and control capabilities. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory is a non-volatile storage medium. The operating system and the computer program run to provide the environment; the network interface is used to communicate with external devices (such as servers or mobile smart terminals) through a network connection; the computer program is executed by the processor to implement a method of displaying whiteboard content; the display screen can LCD display or electronic ink display; the input device can be the touch layer covered on the display, or the keys, trackball or touchpad provided on the whiteboard device shell, or an external keyboard or touchpad Or mouse, etc.

In one embodiment, a server is provided, and an internal structure diagram of the server may be shown in FIG. 15. The server includes a processor, memory, network interface, and database connected via a system bus. Among them, the server's processor is used to provide computing and control capabilities. The memory of the server includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. When the computer program is executed by a processor, a method for displaying a whiteboard content is implemented. The internal memory provides an environment for running the operating system and computer programs in a non-volatile storage medium. The server's database is used to implement whiteboard-sharing conference-related data. The network interface of the server is used to communicate with external devices through a network connection.

Those skilled in the art can understand that the structures shown in FIG. 14 and FIG. 15 are only block diagrams of some structures related to the solution of the present application, and do not constitute a limitation on the whiteboard device or server to which the solution of the present application is applied. A specific whiteboard device or server may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

In one embodiment, a whiteboard device is provided, including a memory, a display screen with a touch function, and a processor; the memory is used to store one or more programs, and the processor implements the following when the one or more programs are executed: step:

In a state where the first whiteboard participates in the sharing meeting, it is detected that the content of the whiteboard on the first whiteboard changes; and the changed whiteboard content is synchronized to the second whiteboard participating in the sharing meeting.

In one embodiment, when the processor executes one or more programs, the steps of any of the other method embodiments on the whiteboard device side are also implemented.

In one embodiment, a server is provided, including a memory and a processor; the memory is used to store one or more programs, and the processor implements the following steps when the processor executes one or more programs:

Receiving content data sent by a first whiteboard participating in a sharing conference, the content data is data corresponding to a changed whiteboard content in the first whiteboard; synchronizing the content data to a second whiteboard participating in the sharing conference.

In one embodiment, when the processor executes one or more programs, the steps of any of the other embodiments on the server side are also implemented.

In one embodiment, a computer-readable storage medium is provided on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: in a state where the first whiteboard participates in a sharing conference, the first whiteboard is detected The content of the whiteboard on the website changes; the changed content of the whiteboard is synchronized to the second whiteboard participating in the sharing meeting.

In one embodiment, when the computer program is executed by the processor, the steps of any of the other method embodiments on the whiteboard device side are also implemented.

In one embodiment, another computer-readable storage medium is provided on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: receiving content data sent by a first whiteboard participating in a shared conference, said The content data is data corresponding to the changed whiteboard content in the first whiteboard; the content data is synchronized to the second whiteboard participating in the sharing meeting.

In one embodiment, when the computer program is executed by the processor, the steps of any of the other method embodiments on the server side are also implemented.

Those of ordinary skill in the art can understand that the implementation of all or part of the processes in the methods of the above embodiments can be completed by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage. In the medium, the computer program, when executed, may include the processes of the embodiments of the methods described above. Wherein, any reference to the storage, storage, database, or other media used in the embodiments provided in this application may include non-volatile and / or volatile storage. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, all It is considered to be the range described in this specification. The description of each of the foregoing embodiments has different focuses. For a part that is not described in detail in an embodiment, reference may be made to related descriptions in other embodiments.

The terms "including" and "having" and any variations thereof in the examples are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device containing a series of steps or (module) units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or optional The ground also includes other steps or units inherent to these processes, methods, products or equipment.

The "plurality" mentioned in the examples means two or more. "And / or" describes the association relationship between related objects and indicates that there can be three types of relationships. For example, A and / or B can indicate that there are three cases in which A exists alone, A and B exist, and B exists alone. The character "/" generally indicates that the related objects are an "or" relationship.

The "first \ second" mentioned in the embodiment is only a difference between similar objects, and does not represent a specific ordering of objects. Understandably, "first \ second" can be interchanged with specific ones if allowed. Sequential or sequential. It should be understood that the objects of the "first \ second" distinction may be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than those illustrated or described herein.

The above embodiments only express several implementation manners of the present invention, but cannot be understood as a limitation on the scope of the invention patent. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of this application patent shall be subject to the appended claims.

Claims

A method for displaying a whiteboard content, comprising:

In the state where the first whiteboard participates in the sharing meeting, a change in the content of the whiteboard on the first whiteboard is detected;

The changed whiteboard content is synchronized to a second whiteboard participating in the sharing meeting.
The method according to claim 1, further comprising:

A trigger operation of a target control in the first white board is detected, and a conference option window is displayed in the first white board; the target control is a control for enabling a shared conference function of the first white board;

A trigger operation of any option in the conference option window is detected, and the conference option window in the first whiteboard is replaced with a conference information window.
The method according to claim 2, wherein:

The conference option window displays a conference creation option and a conference join option;

and / or,

The conference information window displays at least one of a conference code, a conference duration, and a conference end option.
The method according to claim 3, wherein after detecting a trigger operation of any option in the conference option window, replacing the conference option window in the first whiteboard with a conference information window, further comprising:

Control the state where the first whiteboard enters the shared meeting.
The method according to claim 3, further comprising:

When the trigger operation of the conference end option is detected, the conference information window displayed on the first whiteboard is exited, and the first whiteboard is exited from the shared conference.
The method according to claim 4, further comprising: after the first whiteboard enters the state of the shared conference, further comprising:

A video window of a user participating in the sharing conference is displayed in the first whiteboard.
The method according to claim 6, wherein:

The video window includes a video window corresponding to the user of the second whiteboard;

or,

The video window includes a video window corresponding to the user of the first whiteboard and a video window corresponding to the user of the second whiteboard.
The method according to claim 7, wherein the video window is displayed on a top of a display interface of the first whiteboard.
The method according to claim 2, further comprising:

After the first whiteboard is started, the target control is displayed in a display interface of the first whiteboard.
The method according to claim 9, wherein the target control is displayed on a toolbar of the first whiteboard.
The method according to claim 2, wherein the conference option window / conference information window is displayed on a left or right side of a display interface of the first whiteboard.
The method according to claim 1, wherein the synchronizing the changed whiteboard content to a second whiteboard participating in the sharing meeting, so that the whiteboard content of the second whiteboard undergoes the same change, comprising:

Get changed whiteboard content;

The content data corresponding to the changed whiteboard content is sent to the server, so that the second whiteboard participating in the sharing meeting obtains the content data through the server, so that the whiteboard content of the second whiteboard changes similarly.
The method according to claim 3, after detecting an operation signal acting on the conference creation option, further comprising:

Send a meeting creation request to the server, where the meeting creation request carries the meeting code and identification information of the first whiteboard; receive a confirmation creation response returned by the server, and display a meeting information window in the first whiteboard; the confirmation creation response It is issued by the server after generating a new conference record, and the conference record contains a conference code allocated by the server for the conference;

or,

Generate a conference code and send a conference creation message to the server. The conference creation message includes the conference code and the identification information of the first whiteboard; the conference creation message is used to trigger the server to establish a corresponding conference record and save it.
The method according to claim 3, after detecting an operation signal acting on the conference joining option, further comprising:

Displaying a conference code input window through a first whiteboard; the conference code input window is used to receive a conference code input by a user;

Get the conference code entered by the user;

Sending a meeting join request to the server, where the meeting join request carries the meeting code;

Receiving a confirmation joining response returned by the server; the confirmation joining response is sent by the server after determining that a conference record corresponding to the conference code is locally stored;

The whiteboard content of the first whiteboard is cleared, and the whiteboard content of the second whiteboard is displayed in the first whiteboard.
The method according to claim 14, wherein the displaying the whiteboard content of the second whiteboard in the first whiteboard comprises:

Send a content request to the server;

Receiving content data sent by the server; the content data is data corresponding to the whiteboard content of the second whiteboard obtained by the server from the second whiteboard;

The whiteboard content of the second whiteboard is displayed on the first whiteboard.
The method according to claim 14, wherein the meeting join request further carries identification information of a first whiteboard;

The meeting joining request is further used to trigger the server to add the identification information of the first whiteboard to the meeting record after determining that the meeting record corresponding to the meeting code is locally stored.
The method according to claim 16, further comprising:

After detecting the triggering operation of the conference end option, sending a conference exit message to the server, where the conference exit message carries identification information of the first whiteboard;

The exit conference message is used to trigger the server to delete the identification information of the first whiteboard from the conference record.
The method according to claim 9, before the displaying the target control in the display interface of the first whiteboard, further comprising:

Load the shared conference module to the main program of the first whiteboard;

Registering the shared conference module to display the target control in the first whiteboard.
The method according to claim 18, further comprising:

Query the local program module of the first whiteboard during the startup of the first whiteboard;

If a shared conference module exists in the local program module, the step of loading the shared conference module to the main program of the first whiteboard is performed.
The method according to claim 4, further comprising: after the first whiteboard enters the state of the shared conference, further comprising:

Obtaining video information of a user corresponding to the first whiteboard;

Send video information of the user corresponding to the first whiteboard to the server.
The method according to claim 20, before the displaying a video window of a user participating in the sharing conference in the first whiteboard, further comprising:

The video information of the user corresponding to the second whiteboard sent by the server is received to display the video window of the user corresponding to the second video through the first whiteboard.
The method according to claim 21, wherein:

The meeting join request is further used to trigger the server to send a first whiteboard join message to the second whiteboard, so that a video window for displaying a user corresponding to the first whiteboard is added to the second whiteboard;

and / or,

The exit conference message is also used to trigger the server to send a first whiteboard exit message to the second whiteboard, so that the second whiteboard closes the video window of the user corresponding to the first whiteboard.
The method according to any one of claims 1 to 22, wherein a change in the content of the whiteboard includes at least one of the following situations:

Add content, erase content, add pages, subtract pages, move.
A method for displaying a whiteboard content, comprising:

Receiving content data sent by the first whiteboard participating in the sharing meeting, the content data is data corresponding to the changed whiteboard content in the first whiteboard;

Synchronize the content data to a second whiteboard participating in the sharing meeting.
The method according to claim 24, before the receiving the content data sent by the first whiteboard participating in the sharing conference, further comprising:

Receiving a meeting creation request sent by the first whiteboard;

Assign a conference code to the conference to be created, and generate a corresponding conference record according to the conference code;

Returning a confirmation creation response to the first whiteboard, where the confirmation creation response carries the conference code;

or,

Receiving a meeting join request sent by the first whiteboard, where the meeting join request carries a meeting code;

Query the locally stored meeting record, and if it is determined that a meeting record corresponding to the meeting code exists, return a confirmation joining response to the first whiteboard.
The method according to claim 25, wherein:

The conference creation request carries identification information of the first whiteboard, and the conference record generated according to the conference code includes the identification information of the first whiteboard;

The meeting join request carries identification information of the first whiteboard; after querying the locally saved meeting records and determining that a meeting record corresponding to the meeting code exists, the method further includes: adding the identification information of the first whiteboard to the Refer to the corresponding meeting minutes.
The method according to claim 26, wherein synchronizing the content data to a second whiteboard participating in the sharing meeting comprises:

Obtaining the identification information of the first whiteboard, and determining a meeting record containing the identification information of the first whiteboard;

Determining a second whiteboard that participates in the shared conference according to the identification information in the conference record;

Sending the content data to the second whiteboard.
The method according to claim 25, after returning a confirmation creation response / confirmation joining response to the first whiteboard, further comprising:

Receiving video information uploaded by the first whiteboard;

Sending the video information to a second whiteboard participating in the sharing conference.
The method according to claim 28, after returning a confirmation creation response / confirmation joining response to the first whiteboard, further comprising:

Acquiring video information uploaded by a second whiteboard participating in the sharing conference;

Send the video information to the first whiteboard.
The method according to claim 26, further comprising:

Receive the exit conference message sent by the first whiteboard / second whiteboard;

Delete the identification information of the first whiteboard / second whiteboard in the meeting record corresponding to the shared meeting.
The method according to claim 30, after receiving the exit conference message sent by the first whiteboard / second whiteboard, further comprising:

Send the first whiteboard exit message / second whiteboard exit message to the second whiteboard / first whiteboard participating in the conference.
The method according to claim 30, further comprising:

If the number of identification information of the whiteboard in the meeting record is detected to be 0, the meeting record is deleted.
A whiteboard content display device, comprising:

A detection module, configured to detect a change in the content of the whiteboard on the first whiteboard when the first whiteboard participates in the sharing conference;

A synchronization module, configured to synchronize the changed whiteboard content to a second whiteboard participating in the sharing conference.
The apparatus according to claim 33, further comprising:

A first window display module, configured to detect a trigger operation of a target control in the first whiteboard, and display a conference option window in the first whiteboard; the target control is a control for enabling a shared conference function of the first whiteboard; and

The second window display module is configured to detect a trigger operation of any option in the conference option window, and replace the conference option window in the first whiteboard with a conference information window.
The apparatus according to claim 34, further comprising:

The state switching module is configured to replace a conference option window in the first whiteboard with a conference information window when a triggered operation of any option in the conference option window is detected, and control a state where the first whiteboard enters a shared conference.
The apparatus according to claim 33, further comprising:

The video display module is configured to display a video window of a user participating in the shared conference on the first whiteboard after the first whiteboard enters the state of the shared conference.
The apparatus according to claim 34, further comprising:

The control display module is configured to display the target control in a display interface of the first whiteboard after the first whiteboard is started.
The apparatus according to claim 37, further comprising:

A program initialization module, configured to load the shared conference module to the main program of the first whiteboard before displaying the target control in the display interface of the first whiteboard; register the shared conference module to display the The target control is described.
A whiteboard content display device, comprising:

A content receiving module, configured to receive content data sent by a first whiteboard participating in a sharing conference, where the content data is data corresponding to a changed whiteboard content in the first whiteboard;

A content forwarding module, configured to synchronize the content data to a second whiteboard participating in the sharing conference.
The apparatus according to claim 39, further comprising:

The conference record generating module is configured to receive the conference creation request sent by the first whiteboard before receiving the content data sent by the first whiteboard participating in the shared conference; assign a conference code to the conference to be created, and generate a corresponding Minutes of meetings; and

A creation response module is configured to return a confirmation creation response to the first whiteboard, where the confirmation creation response carries the conference code.
The apparatus according to claim 39, further comprising:

A joining processing module, configured to receive a meeting joining request sent by the first whiteboard, where the meeting joining request carries a meeting code; and

The joining response module is used to query a locally saved meeting record, and if it is determined that a meeting record corresponding to the meeting code exists, a confirmation joining response is returned to the first whiteboard.
The apparatus according to claim 39, further comprising:

A first video forwarding module, configured to receive video information uploaded by a first whiteboard and send the video information to a second whiteboard participating in the sharing conference;

as well as,

A second video forwarding module is configured to obtain video information uploaded by a second whiteboard participating in the sharing conference, and send the video information to the first whiteboard.
The apparatus according to claim 39, further comprising:

The exit response module is configured to receive the exit conference message sent by the first whiteboard / second whiteboard, and delete the identification information of the first whiteboard / second whiteboard in the meeting record corresponding to the shared meeting.
The apparatus according to claim 39, further comprising:

The exit forwarding module is configured to send the first whiteboard exit message / second whiteboard exit message to the second whiteboard / first whiteboard participating in the conference after receiving the exit conference message sent by the first whiteboard / second whiteboard.
A whiteboard content display system, comprising a server, and a first whiteboard and a second whiteboard that are communicatively connected with the server, respectively;

The first whiteboard is used to send the changed whiteboard content to the server if a change in the whiteboard content on the first whiteboard is detected while participating in the sharing meeting.

A server, configured to receive content data sent by the first whiteboard, and send the content data to the second whiteboard participating in the sharing meeting; the content data is data corresponding to the content of the whiteboard that changes in the first whiteboard;

The second whiteboard is used to control the content of the local whiteboard to change similarly to the first whiteboard according to the content data sent by the server.
A whiteboard device, comprising a memory, a display screen with a touch function, and a processor; the memory is used to store one or more programs;

When the processor executes the one or more programs, the steps of the method according to any one of claims 1 to 23 are implemented.
A server, including a memory and a processor, where the memory is used to store one or more programs;

When the processor executes the one or more programs, the steps of the method according to any one of claims 24 to 32 are implemented.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the computer program is executed by the processor, the processor is caused to implement the steps of the method according to any one of claims 1 to 32. .