WO2024065097A1

WO2024065097A1 - Blackboard-writing content display method, electronic device, and storage medium

Info

Publication number: WO2024065097A1
Application number: PCT/CN2022/121408
Authority: WO
Inventors: 杨跃斌
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2024-04-04

Abstract

A blackboard-writing content display method, an electronic device, and a storage medium. The method comprises: receiving a courseware page display operation; displaying a current teaching interface, wherein courseware content of a current courseware page is displayed in the current teaching interface; receiving a blackboard-writing list triggering operation; displaying a blackboard-writing list, wherein the blackboard-writing list is displayed in the current teaching interface, and the blackboard-writing list is recorded in association with the current courseware page in advance; receiving a blackboard-writing content display operation, wherein the blackboard-writing content display operation is triggering any blackboard-writing item in the blackboard-writing list; and displaying blackboard-writing content of the blackboard-writing item.

Description

Blackboard content display method, electronic device and storage medium

Technical Field

The present application relates to the field of information-based teaching technology, and in particular to a method for displaying blackboard content, an electronic device and a storage medium.

Background technique

In the scenario of multimedia teaching based on electronic courseware, teachers use the same courseware to teach multiple classes or in different academic years. When explaining the courseware content, the content will be repeatedly written on the blackboard. Repeated writing of the same courseware content on the blackboard not only increases the teacher's writing burden, but also prolongs the waiting time for students to finish writing on the blackboard.

In the existing implementation scheme, the teacher's blackboard content is recorded first, and then replayed during the next class. However, the blackboard content displayed in the existing way cannot match the teacher's teaching rhythm, which affects the teaching quality.

Summary of the invention

In view of this, the embodiments of the present application provide a blackboard content display method, an electronic device and a storage medium, which realize flexible selection and effective playback of blackboard content display.

In a first aspect, an embodiment of the present application provides a method for displaying blackboard content, including:

Receive courseware page display operation;

Display the current teaching interface, in which the courseware content of the current courseware page is displayed;

Receive blackboard list trigger operation;

The display includes a blackboard list, the blackboard list is displayed in the current teaching interface, and the blackboard list is pre-associated with the current courseware page;

Receiving a blackboard content display operation, wherein the blackboard content display operation is a trigger for any blackboard entry in the blackboard list;

Display the blackboard content of the blackboard entry.

Furthermore, when displaying the blackboard content of the blackboard entry, the method further includes:

Hide the blackboard writing list, or continue to present the blackboard writing list.

Furthermore, the displaying of the blackboard content of the blackboard entry includes:

Restoring and displaying the blackboard content of the blackboard entry on the current courseware page; or,

The blackboard content of the blackboard entry is restored and displayed in a pop-up writing board window, and the layer to which the writing board window belongs is located above the layer to which the current teaching interface belongs.

Furthermore, the restoring and displaying the blackboard content of the blackboard entry on the current courseware page includes:

When the writing form associated with the blackboard entry is writing on the teaching interface, determining the first handwriting point information of the blackboard content in the blackboard entry relative to the current courseware page;

According to the first handwriting point information, the first writing handwriting constituting the blackboard content is restored and displayed on the current courseware page.

Further, restoring and displaying the blackboard content of the blackboard entry in the pop-up writing board window includes:

When the writing form associated with the blackboard entry is writing on a writing board window, the writing board window pops up;

Determine the second handwriting point information of the blackboard writing content in the blackboard writing entry relative to the writing board window;

According to the second handwriting point information, the second handwriting constituting the blackboard writing content is restored and displayed in the writing board window.

Furthermore, after displaying the current teaching interface, the method further includes:

In response to a blackboard writing mode trigger operation, entering a blackboard writing mode;

Receiving a moving operation of a touch object in a writing area, wherein the writing area is the current teaching interface, or is a writing board window, and a layer to which the writing board window belongs is located above a layer to which the current teaching interface belongs;

The writing traces are presented in the writing area.

Furthermore, when presenting the handwriting in the writing area, the method further includes:

A blackboard entry is formed based on the presented handwriting, and the blackboard entry is updated to the blackboard list associated with the current courseware page.

Further, the forming of a blackboard entry based on the presented handwriting and updating the blackboard entry to the blackboard list associated with the current courseware page includes:

Determine the interval between the presentation of the current handwriting and the presentation of the previous handwriting;

Forming blackboard entries according to the presentation interval time and the set interval time;

The formed blackboard entry is added to the blackboard list associated with the current courseware page to obtain an updated blackboard list.

Furthermore, forming a blackboard entry according to the presentation interval and the set interval includes:

If the presentation interval is less than the set interval, the current handwriting is added to the target handwriting set to which the previous handwriting belongs; otherwise,

Forming a blackboard entry based on the handwriting in the target handwriting set, and adding the current handwriting to the cleared target handwriting set;

The current handwriting is taken as the new previous handwriting, and the operation of determining the presentation interval is returned to be executed until the handwriting generation is stopped.

Furthermore, the method further comprises:

When the blackboard information storage condition is met, the updated blackboard list is associated with the current courseware page and stored.

Furthermore, the blackboard information storage condition is to monitor that the blackboard list is updated and the blackboard storage time is reached; or, to monitor that the blackboard writing relative to the current courseware page is completed.

Furthermore, the method further comprises:

Receive lesson preparation trigger operations;

Display the current lesson preparation interface of the current courseware page, wherein the current lesson preparation interface includes a blackboard editing control of the current courseware page;

Receiving an edit mode trigger operation, wherein the edit mode trigger operation is a trigger on the blackboard editing control;

Display a blackboard writing list editing window, wherein the blackboard writing list editing window includes a blackboard writing list in an editing state;

Responding to a list editing operation relative to the blackboard list;

Presents the edited blackboard list.

In a second aspect, an embodiment of the present application provides an electronic device, including:

A display screen and one or more processors; the processor runs a client on the electronic device that has blackboard content display, and the display screen displays content when the client runs; wherein,

The processor receives a courseware page display operation;

The display screen displays the current teaching interface, and the current teaching interface displays the courseware content of the current courseware page;

The processor receives a blackboard list trigger operation;

The display screen displays a blackboard list, the blackboard list is displayed in the current teaching interface, and the blackboard list is pre-associated with the current courseware page;

The processor receives a blackboard content display operation, where the blackboard content display operation is a trigger for any blackboard entry in the blackboard list;

The display screen displays the blackboard content of the blackboard entry;

The electronic device further comprises: a memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in Embodiment 1.

In a third aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-executable instructions, when executed by a computer processor, are used to execute the method described in the first aspect.

The present embodiment provides a method for displaying blackboard content, electronic equipment and storage medium. If the method receives a courseware page display operation, the current teaching interface is displayed, and the content display area of the current teaching interface displays the courseware content of the current courseware page; if the blackboard list trigger operation is received afterwards, the blackboard list is displayed, and the blackboard list is displayed in the non-content display area of the current teaching interface, and the blackboard list is associated with the current courseware page; then if the blackboard content display operation is received, the blackboard content display operation is a trigger for any blackboard entry in the blackboard list, and the blackboard content of the blackboard entry can be displayed. The above technical scheme, the displayed blackboard list is pre-associated with the current courseware page, which is equivalent to recording the blackboard generated by the teacher when teaching relative to the current courseware page in advance, and storing it in association with the current courseware page in the form of containing blackboard entries. After the current courseware page is subsequently presented, the blackboard list can be triggered, and only the blackboard entries selected in the blackboard list can be presented. This technical solution realizes the selective display of blackboard content, allowing teachers to select the required blackboard content for display during the teaching process, ensuring flexible selection and effective playback of blackboard content, reducing the repetitive work of teachers and shortening the time students have to wait for the blackboard, providing teachers with more interactive space in electronic teaching, and improving the quality of electronic teaching.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG1 is a schematic diagram of a flow chart of a method for displaying blackboard content provided in Example 1 of the present application;

FIG. 1a shows an effect display diagram of presenting a triggered blackboard list in the blackboard content display method provided in this embodiment;

FIG. 1b shows an effect display diagram of the blackboard content display method provided in this embodiment;

FIG. 1c shows another effect display diagram of the blackboard content display method provided in this embodiment;

FIG. 1d shows another flow chart of a method for displaying blackboard content provided in the first embodiment;

FIG. 1e shows an editing window display diagram of blackboard writing list editing in the blackboard writing content display method provided in this embodiment;

FIG. 1f shows a diagram showing the effect of blackboard writing list editing in the blackboard writing content display method provided in this embodiment;

FIG2 is a schematic diagram of the structure of an electronic device provided in Embodiment 2 of the present application.

Detailed ways

In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of systems and methods consistent with some aspects of the present application as detailed in the attached claims.

In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the objects associated before and after are in an "or" relationship.

Embodiment 1

Figure 1 is a flow chart of a method for displaying blackboard content provided in Example 1 of the present application. This embodiment can be applied to the case of responding to the display of blackboard content associated with a courseware page in an electronic teaching course. The method can be executed by an interactive smart tablet or an electronic device such as a mobile terminal, especially based on the processor in the electronic device. Among them, the electronic device can be regarded as an execution terminal of the blackboard content display method.

It should be noted that in the electronic teaching scenario, the instructor can obtain the teaching software for teaching through the cloud courseware teaching software installed on the electronic device. The electronic device can be an interactive smart tablet in the teaching space, which is equivalent to directly obtaining the teaching courseware through the cloud courseware teaching software on the interactive smart tablet, and displaying the courseware content on the interactive smart tablet for electronic teaching.

In addition, the electronic device can also be a mobile terminal, which is equivalent to obtaining the teaching courseware through the cloud courseware teaching software on the mobile terminal. It can be known that if the teaching courseware is displayed only through the mobile terminal, it cannot guarantee that the audience can see the content of the courseware clearly. The teaching courseware also needs to be displayed on the interactive smart tablet. In this scenario, the teacher can use the same account to log in to the interactive smart tablet and the cloud courseware server on the mobile terminal, so that the interactive smart tablet and the mobile terminal establish communication through the cloud courseware server. As a result, the teacher's operations on the teaching courseware on the mobile terminal and the content presented after the operation response can be synchronously displayed on the interactive smart tablet.

The above-mentioned mobile terminal and interactive smart tablet match to realize mobile teaching in the classroom. For example, one of the scenarios can be described as: the teacher walks around the teaching space with a mobile terminal in hand. By operating the cloud courseware teaching software on the mobile terminal, the cloud courseware server can respond to the operation of the mobile terminal and determine the content to be presented. The content to be presented can be presented to the mobile terminal and simultaneously presented on the interactive smart tablet fixed in the teaching space. This teaching method not only ensures the effective display of the teaching content to the audience, but also ensures the flexible mobile teaching of the teacher.

Generally, if the cloud courseware server records the blackboard writing during the history teaching process, the historical blackboard writing content can be displayed during the new teaching process. With the existing display method, when explaining the content of a certain courseware page, if the courseware page has a historical blackboard writing record, all the recorded historical blackboard writing content will be displayed at the same time. This display method cannot guarantee that the displayed blackboard writing content matches the current teaching content of the teacher, but will affect the teaching quality.

The blackboard content display method provided in this embodiment can realize the selective display of blackboard content and ensure the teaching quality of electronic teaching. The blackboard content display method provided in this embodiment can be executed by a blackboard content display system, and the blackboard content display system can be regarded as a plug-in in the above-mentioned cloud courseware teaching software, and is integrated into the cloud courseware teaching software as a newly added functional application.

Continuing with the above description, an electronic device (which may be a mobile terminal and/or an interactive smart tablet) installed with cloud courseware teaching software can be used as an execution device of this embodiment. When the teacher operates the mobile terminal, the mobile terminal can be used as an execution device of this embodiment. When the teacher operates the interactive smart tablet, the interactive smart tablet can be used as an execution device of this embodiment. The electronic device used as the execution device of this embodiment can exchange information with the cloud courseware server of the cloud courseware teaching software.

It can be known that before executing the method provided in this embodiment, the execution device may need to perform the following operations: the execution device can receive a trigger operation of the cloud courseware teaching software, thereby starting the cloud courseware teaching software, and then can receive the input account and password information to log in to the cloud courseware account associated with the user (teacher). The cloud courseware account contains various cloud courseware generated by the user in the lesson preparation mode. The execution device can display the various cloud courseware generated by the user's lesson preparation in a set form, so that the user can select the cloud courseware that needs to be taught.

Next, after receiving the selection operation for a certain cloud courseware, the execution device can download the cloud courseware to the execution device, or directly access the cloud courseware online.

The so-called courseware may refer to a course document produced according to teaching requirements, after determining teaching objectives, analyzing teaching content and tasks, and designing teaching activity structures and interfaces. For example, the courseware may be a file in a public format such as an ENBX format file, a Word document, a PPT (PowerPoint, presentation), a courseware demonstration whiteboard document, or a custom page composed of elements such as text, tables, and pictures. This embodiment does not impose any restrictions on this.

Specifically, as shown in FIG1 , a method for displaying blackboard content provided in Embodiment 1 of the present application specifically includes the following operations:

S101, receiving courseware page display operation.

It is known that a cloud courseware prepared for a lesson can contain multiple courseware pages, each of which contains the courseware content that the teacher needs to teach. The teacher's teaching based on the cloud courseware is equivalent to displaying each courseware page contained in the cloud courseware and teaching.

After receiving the courseware page display operation through this step, the courseware page display can be performed. Among them, there can be multiple triggering forms for the courseware page display operation, such as, after opening the cloud courseware, the courseware page display operation can be generated by triggering the teaching button; or based on the current display of a certain courseware page, the courseware page display operation can be generated by turning the page up or down. When the courseware page display operation is generated by turning the page up or down, it can be considered that the previous courseware page display operation has been responded to, and it is in the teaching mode of the cloud courseware and a certain courseware page is displayed.

S102, displaying a current teaching interface, wherein the current teaching interface displays the courseware content of the current courseware page.

This step is equivalent to a response to the courseware page display operation, and is used to present the courseware page of the current course. Specifically, the current teaching interface can be understood as the screen interface currently presented by the cloud courseware in the teaching mode. The current courseware page is presented in the current teaching interface, showing the courseware content contained in the current courseware page.

Based on the different ways of generating the courseware page display operation, the current courseware page displayed in the current teaching interface is different. For example, when the courseware page display operation is generated by triggering the teaching button corresponding to the cloud courseware, the current courseware page displayed in the current teaching interface can be the first courseware page of the cloud courseware, or a courseware page specified/default for display after entering the teaching mode.

For example, when a courseware page display operation is generated by turning the page up or down based on the display of a certain courseware page, the current courseware page displayed in the current teaching interface can be the previous courseware page of the previously displayed courseware page, or the next courseware page of the previously displayed courseware page.

S103, receiving a blackboard list trigger operation.

In this embodiment, it can be considered that each courseware page is associated with a blackboard list. The blackboard list contains the blackboard content when writing on the blackboard relative to the courseware page during the history teaching process. When executing the display step of the current courseware page, it is equivalent to determining the blackboard list associated with the current courseware page. However, in order to ensure the presentation effect of the current courseware page, this embodiment does not display the associated blackboard list while displaying the current courseware page, but controls the blackboard list to be in a hidden state, and then presents the blackboard list after receiving the blackboard list trigger operation through this step.

There may also be multiple ways to generate the blackboard list trigger operation in this step. For example, the blackboard list trigger operation may be generated by pressing a physical shortcut key, or by touching the list display control in the teaching control bar. In addition, the blackboard list trigger operation may be automatically generated when the trigger condition is detected, such as when the display time of the current courseware page reaches the set time, it is considered that the trigger condition of the blackboard list is met.

The teaching control bar is hidden in the border of the execution device interface, and can be called out by touch sliding. The list display control can be considered as one of the component buttons contained in the teaching control bar. Regarding the teaching control bar, it can enter the hidden state by sliding in the opposite direction, or after completing the triggering of any control component, the display of the teaching control bar can be retracted and enter the hidden state.

S104, displaying a blackboard list, wherein the blackboard list is displayed in the current teaching interface, and the blackboard list is pre-associated with the current courseware page.

This step is equivalent to the response of the above-mentioned blackboard list triggering operation, and is used to display the blackboard list in the current teaching interface. The blackboard list can be displayed in a specified area of the current teaching interface, and can be presented in different positions through the received drag operation.

In this embodiment, the blackboard list can be displayed as empty, which is equivalent to the current courseware page not having any blackboard content recorded during the history teaching process; the blackboard list may also include at least one blackboard entry, each blackboard entry includes the blackboard content formed during the history teaching process relative to the current courseware page, and a blackboard entry may include part of the blackboard content formed during the history teaching process; the formed historical blackboard content can be divided into different blackboard entries.

Different from the existing recording method of recording all blackboard contents as a whole, this embodiment can integrate and split the blackboard handwriting formed during the history teaching process relative to the current courseware page according to the set rules, thereby integrating the blackboard handwriting with strong correlation into a blackboard entry; and when the correlation between the newly formed blackboard handwriting and the already formed blackboard handwriting is weak, consider splitting the newly formed blackboard handwriting into a new blackboard entry.

Figure 1a shows the effect display diagram of the triggered blackboard list presented in the blackboard content display method provided in this embodiment. As shown in Figure 1a, the current teaching interface 11 is specifically presented, and the current teaching interface 11 includes the current courseware page 110; and after responding to the blackboard list triggering operation, the current teaching interface can also display the blackboard list 111 associated with the current courseware page 110. The blackboard list 111 can be empty at this time, and can include various blackboard entries formed in the history teaching process.

S105. Receive a blackboard writing content display operation, wherein the blackboard writing content display operation is a trigger for any blackboard writing item in the blackboard writing list.

Based on the above description, it can be known that when the blackboard list presented is empty, it is equivalent to that there is no blackboard content that can be displayed, and the operation of this step and S106 cannot be performed at this time; when the blackboard list presented contains at least one blackboard entry, it is equivalent to that the current courseware page has historical blackboards in the history teaching process, and the blackboard content of the historical blackboard is integrated in at least one blackboard entry. The teacher (user) can select each blackboard entry presented, and the blackboard content display operation can be generated by triggering the selection of a blackboard entry.

It should be noted that each control operation received in this embodiment can be performed in the form of, but not limited to, touch, keyboard, mouse, or physical buttons.

S106: Display the blackboard content of the blackboard entry.

This step is equivalent to a response to the blackboard content display operation, and is used to display the blackboard content contained in the triggered blackboard entry.

The displayed blackboard content can be considered as the blackboard handwriting with strong correlation determined according to a certain rule during the history teaching process. In this step, the display form of the blackboard content can be related to the writing position and writing form of the blackboard handwriting corresponding to the blackboard content.

It should be noted that when writing on the blackboard relative to the current courseware page during the history teaching process, the writing form adopted includes writing on the teaching interface, which is equivalent to writing directly on the current teaching interface of the current courseware page, thereby forming the blackboard handwriting; the writing method adopted can also include writing in the writing board window, which is equivalent to writing in the writing board window, thereby forming the blackboard handwriting.

In this embodiment, when displaying the blackboard content of the blackboard entry, the writing form of the blackboard content can be determined first. When the writing form is writing on the teaching interface, it can be determined that the blackboard content is displayed on the current teaching interface; when the writing mode is writing on the writing board window, it can be determined that the blackboard content is displayed in the writing board window. And no matter where it is displayed, this embodiment can be considered as a restored display of the handwriting corresponding to the blackboard content, that is, where the blackboard handwriting is written during the historical teaching process, this step can restore the blackboard handwriting corresponding to the blackboard content to the original writing position for presentation. This embodiment can also present the blackboard content according to a pre-set presentation rule, and does not specifically limit the presentation form of the blackboard content.

This embodiment increases the flexibility and selectivity of the blackboard content display in the presentation method by selecting the blackboard entry whose blackboard content is to be presented in the blackboard list, thereby improving the interactive experience of the teacher with the electronic teaching device during the teaching process.

In this embodiment, as an implementation method of displaying the blackboard content, the blackboard content of the blackboard entry can be concretely displayed as follows:

In this embodiment, the restored display can be considered as where the original handwriting associated with the blackboard content is written, and the original writing position should be presented at present. When writing on the blackboard on the current teaching interface, it can be considered that the blackboard content should also be presented on the current courseware page, and when writing on the blackboard in the writing board window, it can be considered that the blackboard content should be presented in the writing board window. When performing the restored display, it is necessary to determine the handwriting point position information of the blackboard handwriting corresponding to the blackboard content on the current courseware page or in the writing board window, thereby presenting the blackboard handwriting associated with the blackboard content based on the handwriting point position information.

In this embodiment, the writing board window can pop up when there is a need for writing (such as teaching blackboard writing), and it can belong to a new layer and be presented on the layer of the current teaching interface. If the display screen presenting the current teaching interface is regarded as a whiteboard, the writing board window can be understood as a board within a board, that is, a writing board that is smaller than the whiteboard but exists independently on the whiteboard.

As one of the implementation methods of displaying the blackboard content, the specific implementation of restoring and displaying the blackboard content of the blackboard item on the current courseware page can be described as follows:

a1) When the writing form associated with the blackboard entry is writing on the teaching interface, determine the first handwriting point information of the blackboard content in the blackboard entry relative to the current courseware page.

It should be noted that when writing on the blackboard during the history teaching process to form each blackboard item in the blackboard list, in addition to recording the blackboard handwriting of each blackboard item, the writing form of each blackboard item and the handwriting point information of each blackboard handwriting in the writing form are also recorded. Therefore, when the present embodiment triggers any blackboard item in the blackboard list to display the content associated with the blackboard item, the writing form and handwriting point information associated with the blackboard item can be obtained.

In this embodiment, when the writing form is writing on the teaching interface, it can be considered that the blackboard content of the blackboard entry needs to be presented in the current courseware page, so this step needs to determine the first handwriting point information of the blackboard content of the blackboard entry relative to the current courseware page. The handwriting point information recorded when writing the blackboard handwriting of the blackboard content can be considered as the point coordinate position information relative to the electronic device screen interface. This embodiment can determine the handwriting point information of the blackboard handwriting of the blackboard content relative to the current courseware page in a normalized form through the display size of the current courseware page and the association with the electronic device screen interface, and it can be recorded as the first handwriting point information.

b1) based on the first handwriting point information, restoring and displaying the first writing handwriting constituting the blackboard content on the current courseware page.

After determining the writing form of the blackboard content through the above steps, it is equivalent to determining the display form of the blackboard content corresponding to the blackboard entry, and obtaining the first handwriting point information when specifically presented in the display form. This step can restore the handwriting based on the first handwriting point information, and the restored handwriting is recorded as the first handwriting, which constitutes the blackboard content of the blackboard entry.

Fig. 1b provides a kind of effect display diagram of the blackboard writing content display in the blackboard writing content display method provided by the present embodiment.As shown in Fig. 1b, the display effect of carrying out the blackboard writing content display in the current courseware page 110 is specifically provided.It can be seen that the current courseware page 110 is included in the current teaching interface 11, the first blackboard writing content 112 is displayed in the current courseware page 110, the blackboard writing handwriting of the blackboard writing content is the restoration display of the handwriting when writing on the blackboard in the historical teaching process of the current courseware page, and the blackboard writing content can be a part of all blackboard writing contents, specifically associated with a blackboard writing item that the user selects to trigger in the blackboard writing list.It can be considered as the blackboard writing content presented after the item 1 shown in Fig. 1a is triggered in Fig. 1b, and is specifically presented in the current courseware page 110.In addition, it can be seen that when the blackboard writing content is presented, the blackboard writing list 111 shown in Fig. 1a will be in a hidden state.

Similarly, as one of the implementation methods of displaying the blackboard content, the specific implementation of restoring and displaying the blackboard content of the blackboard entry in the pop-up writing board window can be described as follows:

a2) When the writing form associated with the blackboard entry is writing on a writing board window, the writing board window pops up.

As can be seen from the above description, the writing form of the blackboard entry during the blackboard writing stage can be determined by the associated information recorded relative to the blackboard entry. When the writing form is writing on the writing board window, it can be considered that the blackboard content of the blackboard entry needs to be presented in the writing board window, so this step can pop up an independent writing board window on the current teaching interface.

b2) Determine the second handwriting point information of the blackboard writing content in the blackboard writing entry relative to the writing board window.

In this embodiment, the associated information recorded relative to the blackboard entry also includes the blackboard writing handwriting point information of the blackboard writing content corresponding to the blackboard writing entry relative to the screen interface. When the writing form is blackboard writing on the writing board window, it can be considered that the blackboard writing content of the blackboard writing entry needs to be presented in the writing board window. This step can be combined with the blackboard writing handwriting point information after the window position and display size of the writing board window are known, and the handwriting point information of the blackboard writing content in the writing board window can be determined by normalization, which is recorded as the second handwriting point information in this embodiment.

c2) based on the second handwriting point information, restoring and displaying the second handwriting constituting the blackboard writing content in the writing board window.

After the writing form of the blackboard content is determined through the above steps, it is equivalent to determining the display form of the blackboard content corresponding to the blackboard entry, and obtaining the second handwriting point information when specifically presented in the display form. This step can restore the handwriting based on the second handwriting point information, and the restored handwriting is recorded as the second handwriting constituting the blackboard content of the blackboard entry.

Fig. 1c shows another effect display diagram of the blackboard content display in the blackboard content display method provided by the present embodiment. As shown in Fig. 1c, the display effect of displaying the blackboard content in the writing board window 12 is specifically given. It can be seen that the writing board window 12 belongs to a new layer, which is presented on the layer where the current teaching interface 11 is located, and the second blackboard content 121 is displayed in the writing board window. Similarly, the blackboard handwriting of the blackboard content is the restoration display of the handwriting when writing on the blackboard during the historical teaching process of the current courseware page, and the blackboard content can be a part of all blackboard contents, specifically associated with a blackboard item selected by the user in the blackboard list to trigger. In Fig. 1c, it can be considered that the blackboard content presented after the item 2 shown in Fig. 1a is triggered, and is specifically presented in the writing board window 12. In addition, it can be seen that when the blackboard content is presented, the blackboard list 111 shown in Fig. 1a is also in a hidden state.

A kind of blackboard content display method provided by the present embodiment, the displayed blackboard list is pre-associated with the current courseware page, which is equivalent to recording the blackboard produced by the teacher when teaching relative to the current courseware page in advance, and storing it in association with the current courseware page in the form of containing blackboard items. After the current courseware page is subsequently presented, the blackboard list can be triggered, and only the blackboard items selected in the blackboard list can be presented. This technical solution realizes the selective display of blackboard content, so that the teacher can select the required blackboard content to display during the teaching process, ensures the flexible selection and effective playback of blackboard content, reduces the teacher's duplication of work and shortens the time for students to wait for blackboard writing, provides more interactive space for the teacher in electronic teaching, and improves the quality of electronic teaching.

It should be noted that after the display of the blackboard content corresponding to a blackboard entry is realized through the above steps, a new blackboard entry can be selected from the blackboard list to display the relevant blackboard content when necessary. The above S105 and S106 are equivalent to being cyclically executed. As long as the blackboard entry in the blackboard list is triggered, the blackboard content display operation can be received through S105, and the blackboard content of the triggered blackboard entry can be displayed through S106.

In this embodiment, when displaying the blackboard content, the blackboard list can be controlled to be in a hidden state, or the blackboard list can be controlled to be in a continuous presentation state.

Specifically, as a first optional embodiment of this implementation, this optional implementation can further optimize the display of the blackboard content of the blackboard entry by: hiding the blackboard list, or continuously presenting the blackboard list.

It can be known that in order to ensure the display effect of the blackboard content and reduce the occlusion of the displayed information (this situation mainly occurs when the interactive smart tablet is directly used as the execution device and the teacher directly operates the interactive smart tablet), the blackboard list can be hidden when displaying the blackboard content. In this case, when the blackboard list needs to be presented again, it is necessary to execute S103 and S104 operations again, and the operations of S105 and S106 can be continued to be re-executed in the re-presented blackboard list.

In another logic implementation, while the blackboard content is displayed, the blackboard list can be controlled to remain in a display state until the current teaching interface is displayed and switched to a new teaching interface.

This situation can be when the execution device is a mobile terminal. In order to facilitate the operation of the teacher, the blackboard list can be controlled to be continuously presented on the mobile terminal, and the continuously displayed blackboard list can be displayed asynchronously on the interactive smart tablet, that is, the blackboard list can be not displayed on the interactive smart tablet, and only presented on the mobile terminal as the control end. This method facilitates the interactive control of the teacher. When the blackboard list is continuously presented, the user's drag operation on the blackboard list can be received and responded to, so that the display position of the blackboard list can be moved by the user's drag. In this way, the blackboard list can also better reduce the occlusion of the displayed content.

It should be noted that the above steps S101 to S106 can be executed in a loop. When the teacher finishes teaching the current courseware page in the current teaching interface, a new courseware page display operation can be received through S101, and then the teaching interface corresponding to the courseware page display operation can be displayed through S102, and it can be used as the new current teaching interface, and the teaching interface contains the new current courseware page that needs to be presented.

Similarly, based on the subsequent steps S103 to S106, a blackboard list associated with the new current courseware page can be displayed, and after a blackboard entry in the blackboard list is triggered, the blackboard content of the triggered blackboard entry can be displayed.

As a second optional embodiment of the present implementation, this optional embodiment optimizes and adds the step of forming a blackboard entry. FIG1d shows another flow chart of a method for displaying blackboard content provided by this embodiment 1. This optional embodiment can optimize and add a blackboard writing mode trigger operation in response to the blackboard writing mode trigger operation after displaying the current teaching interface; receive a touch object moving operation in the writing area, wherein the writing area is the current teaching interface, or is a writing board window, and the layer to which the writing board window belongs is located above the layer to which the current teaching interface belongs; and present the writing handwriting in the writing area.

At the same time, when the handwriting is presented in the writing area, a blackboard entry can be further formed based on the presented handwriting, and the blackboard entry can be updated to the blackboard list associated with the current courseware page. And it can also be optimized to include: when the blackboard information storage condition is met, the updated blackboard list is associated with the current courseware page for storage.

Specifically, as shown in FIG. 1d , a method for displaying blackboard content provided by this optional embodiment may include the following steps:

S201, receiving the courseware page display operation.

Exemplarily, the teacher may trigger the generation of a new courseware page display operation by turning the page down, and this step may receive the courseware page display operation.

S202: Display the current teaching interface, in which the courseware content of the current courseware page is displayed.

Exemplarily, in response to the above S201, a current teaching interface related to the courseware page display operation may be presented, and the courseware content associated with the current courseware page may be displayed in the current teaching interface.

S203, receiving a blackboard list trigger operation.

Exemplarily, the blackboard list triggering operation can be formed by triggering the list display control in the teaching control bar displayed in the current teaching interface. In this step, the blackboard list triggering operation can be received.

S204, displaying a blackboard list, wherein the blackboard list is displayed in the current teaching interface, and the blackboard list is pre-associated with the current courseware page.

Exemplarily, in response to the above S204, a blackboard list associated with the current courseware page may be presented. The blackboard list may be empty, indicating that no historical blackboard content is available. The blackboard list may also include at least one blackboard entry, and one blackboard entry corresponds to part or all of the historical blackboard content formed during the history teaching process.

S205, receiving a blackboard content display operation, wherein the blackboard content display operation is a trigger for any blackboard entry in the blackboard list.

Exemplarily, any blackboard entry included in the blackboard list may be triggered, and this step may receive a generated blackboard content display operation.

It can be known that the triggered blackboard entry can be the blackboard content that the teacher thinks matches the current teaching content. The blackboard entry has a corresponding entry identification number in the blackboard list, and also displays key information of the blackboard content, which is used by the teacher to identify whether the blackboard entry is the blackboard content that matches the current teaching.

S206: Display the blackboard content of the blackboard entry.

For example, in response to the above S205, the blackboard writing content integrated in the blackboard writing item can be presented in a display form, which can be directly restored and presented on the current courseware page, or restored and presented in the writing board window.

It can be understood that the above S103 to S106 are equivalent to one of the execution branches after displaying the current teaching interface, which is used to display the blackboard content.

In the present embodiment, after presenting the current teaching interface, the blackboard writing operation of the courseware page can also be performed. That is, in the process of the current teaching relative to the current courseware page, there may be a new blackboard writing demand, or the teaching is using new courseware, and the blackboard writing associated with the current courseware page has not been performed. When it is necessary to write on the blackboard during the teaching process of the current courseware page, it is equivalent to a new execution branch relative to the current teaching interface, and the execution branch can specifically include the following steps S207 to S211.

S207. In response to the blackboard writing mode triggering operation, enter the blackboard writing mode.

In this embodiment, this step is equivalent to the response of the blackboard writing mode, which can specifically respond to the generated blackboard writing mode trigger operation, thereby entering the blackboard writing mode. The blackboard writing mode can be considered as the premise of blackboard writing. The blackboard writing mode does not conflict with the teaching mode initially entered, and the current teaching interface can still be maintained in this mode.

In this embodiment, there may also be multiple ways to generate a blackboard writing mode trigger operation. For example, the blackboard writing mode trigger operation may be generated by pressing a physical shortcut key, or by touching the blackboard writing control in the teaching control bar. In addition, the blackboard writing mode trigger operation may be generated by quickly touching the display screen of the electronic device (such as continuously tapping the display screen for a set number of times, or tapping the display screen at intervals, etc.).

After entering the blackboard writing mode through this embodiment, the mode entry reminder can be issued through indicator lights, text, voice, etc. to inform the user that the blackboard writing mode has been entered.

S208. Receive a moving operation of the touch object in the writing area, wherein the writing area is the current teaching interface, or is a writing board window, and a layer to which the writing board window belongs is located above a layer to which the current teaching interface belongs.

In this embodiment, after entering the blackboard writing mode, the user can write on the blackboard by touching the display screen of the electronic device. For example, the teacher can use a writing pen to move and write on the display screen, or directly use a finger to move and write on the display screen. The touch object can specifically be a user's finger, an active stylus or a passive stylus, etc. The user can control the touch object to move on the display screen surface of the electronic device, wherein the moving state presented by the touch object when moving can be used to present the handwriting.

This step can receive the movement operation of the touch object on the display screen when the user moves to write, and this embodiment can limit the range of movement of the user's writing, and record the limited movable range as the writing area. Specifically, the writing area can be the current teaching interface presented, or it can be a writing board window. As one of the display forms of the blackboard writing mode, after entering the blackboard writing mode, a writing board window for blackboard writing can pop up. In this step, the pop-up writing board window can be used as a writing area where the touch object can be moved. The writing board window can belong to a new layer and be presented above the layer to which the current teaching interface belongs.

It can be known that when the writing area is determined, it is equivalent to determining the writing form of the blackboard, that is, it is equivalent to determining whether to write on the current teaching interface or in the writing board window.

S209: Present the writing handwriting in the writing area.

This step can be regarded as a response to the above-mentioned touch object movement operation. Through the movement of the touch object in the writing area, this step can present corresponding writing handwriting in the writing area.

Specifically, the implementation process of presenting handwriting when the touch object moves can be described as follows: first determine the handwriting point information generated when the touch object moves on the display screen, and then present the handwriting according to the handwriting point information. It can be considered that the display screen of the execution device is equipped with a touch frame, through which the touch frame can provide the upper layer application with the touch information of the touch object when the display screen moves. The touch information can at least include the touch point coordinates, and can also include the touch area and the rotation angle of the touch object during the touch process. It can be considered that the handwriting point information required for the handwriting presentation in this embodiment can be provided by the touch frame on the display screen.

In this embodiment, the touch frame can be specifically a frame formed by an optical touch sensor and nested at the edge of the display screen. In this step, the touch frame can generate a touch signal based on the included optical touch sensor when the touch object moves on the display screen, and identify the corresponding touch point information (handwriting point information) by responding to the touch signal. Continuing with the above description, during the startup and operation of the execution device, the processor can start the optical touch sensor, the optical touch sensor scans the light signal on the display screen surface of the execution device, detects whether a touch object appears on the display screen surface according to the transmission of the light signal, and when the touch object is detected, generates a corresponding touch signal in real time during the movement of the touch object. At the same time, the touch frame can respond to the generated touch signal, thereby feeding back the touch point data identified after the response to the upper layer of the execution device (such as the main processor in the intelligent processing system configured by the execution device), and the touch point data is recorded as handwriting point information in this embodiment.

It should be noted that, in this embodiment, the operation of presenting handwriting is mainly performed by the intelligent processing system of the upper layer of the execution device, which can be specifically executed by the host processor or processor, and the handwriting point information required for the presentation of handwriting is mainly fed back by the touch box at the hardware level of the execution device. In this embodiment, the touch point information fed back by the touch box can be regarded as the input information required by the upper layer.

For the touch frame configured on the execution device, if it comes from different manufacturers, the execution parameters of the touch frame are also different, which may cause the touch information fed back by the touch frame to be different in representation, affecting the normal execution of the handwriting presentation method. In order to ensure the unification of data information in the execution process of handwriting presentation.

Exemplarily, this first optional embodiment can analyze the production information and batch information of the touch frame, determine the original information format of the touch point information fed back by the touch frame, and then process the unit format and data structure of the touch point information to ensure that the data input to the upper layer of the execution device has a unified information format. The processed touch point information removes the unit format related to the manufacturer or batch of the touch frame. For example, the touch area unit fed back in the touch point information in the original information format is basically based on the number of optical trigger sensors blocked on the touch frame as the touch width unit and the touch height unit. This first optional embodiment can convert it into a unified abstract unit in the software, such as a pixel unit.

Specifically, this embodiment can concretize the processing of each touch point information as follows: according to the acquired touch frame size information and screen resolution information, the unit of each data information in the touch point information is converted into a unified set unit format; and the touch point information is recorded using the data structure corresponding to the set unit format.

In the specific implementation of the handwriting presentation in this step, in order to obtain more accurate data information from the inside of the touch frame, it is necessary to understand the size of the touch frame currently equipped with the execution device and the screen resolution information of the display screen, etc., and this information can be obtained by communicating with the touch frame hardware or reading from the intelligent processing system.

Regarding the specific processing items of touch point information, this optional embodiment can uniformly convert data information such as the touch point coordinates, the height and width of the touch point, or the vertices of the geometric figures formed when touching, which are identified in the original information format of the touch frame, into more abstract unit values at the software level, such as coordinate points represented by pixels, width or height values, etc.

It should be noted that when the execution device is a mobile terminal, the handwriting presented on the execution device will be uploaded to the cloud courseware server in real time, and transmitted to the interactive smart tablet in real time through the cloud courseware server, so that the handwriting can be presented in real time on the interactive smart tablet.

S210, forming a blackboard entry based on the presented handwriting, and updating the blackboard entry to the blackboard list associated with the current courseware page.

While presenting the handwriting based on the above steps, it is equivalent to obtaining the blackboard handwriting. This step needs to form a blackboard entry based on the presented handwriting.

It is known that in the existing implementation of blackboard recording, the handwriting presented is often recorded directly as the blackboard content generated in the history teaching. Based on this method, all the blackboard content formed relative to a certain courseware page is recorded, and it will be presented as a whole in the subsequent teaching. The overall presented blackboard content may not be what the teacher currently needs, resulting in the problem that the blackboard content does not match the teacher's teaching content.

In this embodiment, the presented handwriting can be divided according to the strength of the correlation through this step, thereby integrating the handwriting with strong correlation together to form a blackboard entry, and the handwriting with weak correlation will be divided into different blackboard entries. Therefore, when writing on the blackboard relative to the current courseware page, at least one blackboard entry can be formed.

It should be noted that the blackboard content can be composed of multiple handwritings, and one handwriting can be considered as the handwriting formed from pressing the touch object to start the touch movement to lifting the touch object to end the movement. In this embodiment, the strength of the correlation between the handwritings can be determined by the interval between the end of the last movement of the touch object and the start of the next movement. Exemplarily, the last time point when the touch object ended the last movement can be recorded, and the current time point when the touch object is pressed to start the current movement can be recorded. The time interval between this time point and the previous time point can be determined, and then it can be determined based on the time interval whether the handwriting presented by the previous movement has a strong correlation with the handwriting presented by this movement, and when there is a strong correlation, the two handwritings are integrated into the same blackboard entry.

After the blackboard entry is formed, this step also requires updating the blackboard entry to the blackboard list associated with the current courseware page. In this embodiment, a blackboard list can be set in advance for each current courseware page. When no blackboard entry is formed, the blackboard list is equivalent to being empty. When a blackboard entry is generated, the blackboard entry can be updated to the blackboard list. The blackboard entry updated to the blackboard list can be presented in the displayed blackboard list after a subsequent blackboard list trigger operation relative to the current courseware page is performed.

Specifically, the second optional embodiment can optimize the above S210, forming a blackboard entry based on the presented handwriting, and updating the blackboard entry to the blackboard list associated with the current courseware page, into the following steps:

a3) Determine the interval between the presentation of the current handwriting and the presentation of the previous handwriting.

In this embodiment, the handwriting can be considered to be presented in real time, that is, the corresponding handwriting can be presented while the touch object moves. In the execution of this step, the end time point when the writing ends in the last handwriting presented can be obtained; the start time point when the writing starts in the current handwriting can also be obtained. Thus, the interval time between the start time point and the end time point can be determined, and the interval time can be recorded as the presentation interval time.

b3) forming blackboard entries according to the presentation interval time and the set interval time.

In this step, the presentation interval time can be compared with the set interval time, and the correlation between the previous handwriting and the current handwriting can be determined based on the comparison result, and whether to integrate the current handwriting with the previous handwriting can be determined based on the strength of the correlation.

It should be noted that, in the process of forming blackboard entries, it is necessary to determine that the current handwriting and the previous handwriting cannot be integrated together, then the handwriting integrated with the previous handwriting can be regarded as a blackboard entry; in addition, after the previous handwriting is formed, when the interval setting time is still for generating new handwriting, the previous handwriting and the handwriting integrated with it can be regarded as a blackboard entry; similarly, after the previous handwriting is formed, the page turning operation of the current courseware page is received, that is, the operation of displaying the new current courseware page is received, at this time, the previous handwriting and the handwriting integrated with it can also be regarded as a blackboard entry.

Further, regarding the specific implementation of forming a blackboard entry according to the presentation interval time and the set interval time, this embodiment provides the following steps:

b31) If the presentation interval is less than the set interval, the current handwriting is added to the target handwriting set to which the previous handwriting belongs; otherwise, execute step b32).

Specifically, this step determines the correlation between the previous handwriting and the current handwriting by comparing the presentation interval time with the set interval time. If the presentation interval time is less than the set interval time, it can be considered that the previous handwriting and the current handwriting have a strong correlation, so the current handwriting can be added to the target handwriting set to which the previous handwriting belongs, so as to achieve the integration of the current handwriting and the previous handwriting. Otherwise, it can be considered that the previous handwriting and the current handwriting have a weak correlation, and step b32 needs to be executed.

There is no specific limitation on the interval time setting, and it can be preferably set to 1 second.

b32) forming a blackboard entry based on the handwriting in the target handwriting set, and adding the current handwriting to the cleared target handwriting set.

Through the above judgment, when it is determined that the correlation between the previous handwriting and the current handwriting is weak, a blackboard entry can be formed based on all the handwriting currently contained in the target handwriting set, that is, all the handwriting contained in the target handwriting set are used to form a blackboard entry. After that, the target handwriting set can be cleared, and the current handwriting is added to the cleared target handwriting set for forming the next blackboard entry.

b33) taking the current handwriting as the new previous handwriting and returning to perform the operation of determining the presentation interval time until the handwriting generation is stopped.

After executing the above step b31) or step b32), this step needs to be executed, and the loop execution of the blackboard entry formation can be realized through this step. In this step, the current handwriting can be used as the new previous handwriting, and then the execution of the above step a1) can be returned.

The end condition of the loop is to stop the generation of handwriting. The specific implementation of stopping the generation of handwriting can be that the interval after the last handwriting presentation ends reaches the set time threshold; or it can be that after the last handwriting presentation ends, an operation of ending the display of the current courseware page is received. Among them, ending the display of the current courseware page can end the teaching, or display a new current courseware page.

c3) adding the formed blackboard entry to the blackboard list associated with the current courseware page to obtain an updated blackboard list.

This embodiment can add the blackboard entry to the blackboard list associated with the current courseware page in real time after forming a blackboard entry, or can add all blackboard entries to the blackboard list after completing the generation of all blackboard entries on the current courseware page. After the blackboard entry is added, it is equivalent to updating the blackboard list, thereby obtaining an updated blackboard list.

S211. When the blackboard information storage conditions are met, the updated blackboard list is associated with the current courseware page and stored.

After the update of the blackboard list is realized through the above S210, the blackboard list and the current courseware page can be associated and stored through this step. The associated storage in this step can be considered as local storage on the execution device, and can also be considered as communication with the cloud courseware server, realizing the associated storage of the blackboard list and the current courseware page on the cloud courseware server. The present embodiment preferably realizes the local storage of the blackboard list and the current courseware page after completing the update of the above blackboard list. This step is equivalent to uploading the blackboard list and the current courseware page to the cloud courseware server, and performing associated storage on the cloud courseware server.

It is understandable that, based on the different teaching methods chosen by the teacher, the execution device can be a mobile terminal or an interactive smart tablet. If it is a mobile terminal, it is necessary to ensure that the content presented on the mobile terminal needs to be displayed synchronously on the interactive smart tablet, so it is necessary to ensure that the blackboard list is updated to the cloud courseware server in real time; at this time, the blackboard information storage condition of this step can be to monitor that the blackboard list is updated, that is, after the blackboard list is updated, the blackboard list and the current courseware page are associated and stored on the cloud courseware server.

The execution device may also be an interactive smart tablet. In this case, the blackboard information storage condition may be monitoring the update of the blackboard list or the arrival of the blackboard storage time; or monitoring the completion of the blackboard writing relative to the current courseware page.

In this embodiment, the blackboard storage time can be preset, and the completion of the blackboard writing relative to the current courseware page can be considered as monitoring that no more writing handwriting is generated relative to the current courseware page, or monitoring that the display of the current courseware page is ended.

The blackboard content display method provided by this second optional embodiment provides a specific implementation logic for forming blackboard entries when writing on the blackboard relative to the current courseware page after the current courseware page is displayed. This optional embodiment provides a recording method different from the existing blackboard content, through which the blackboard content can be recorded in the form of at least one blackboard entry, thereby ensuring that when the blackboard content is displayed, the logic implementation of the book content associated with the required blackboard entry can be selectively displayed. It provides a data basis for the flexible and selective display of the blackboard content of this embodiment.

The above embodiment of the present application provides a specific implementation of the blackboard content display and the blackboard content formation. As another functional implementation of the blackboard display method provided in this embodiment, on the basis of the above embodiment, the blackboard content display method provided in this embodiment can also be optimized to include the following operations:

a4) Receive lesson preparation trigger operation.

For the cloud courseware teaching software installed on this execution device, in addition to the functional applications of teaching, blackboard content display, and blackboard content formation and recording, it also has a lesson preparation function for the creation of cloud courseware required for teaching and the subsequent editing and updating of courseware content.

In this embodiment, a lesson preparation trigger operation triggered by a user may be received, which may also be generated by physical buttons, keyboards, mice, touch controls, etc. The lesson preparation trigger operation received in this step may be considered as a lesson preparation trigger for any courseware page in a cloud courseware.

The execution scenario of the lesson preparation trigger operation can be described as: after the cloud courseware teaching software is started and running, the lesson preparation list interface is entered by triggering the lesson preparation function control. The lesson preparation list interface contains the cloud courseware created by the user; after triggering any cloud courseware, the lesson preparation details interface of the cloud courseware can be entered; the lesson preparation details interface may include thumbnails of each courseware page or courseware page index map formed by the cloud courseware through lesson preparation; the user can select the courseware page that needs to be prepared and edited, and by triggering the selected courseware page, the lesson preparation trigger operation received in this step can be generated.

b4) Displaying the current lesson preparation interface of the current courseware page, wherein the current lesson preparation interface includes a blackboard editing control of the current courseware page.

This step is equivalent to a response to the above-mentioned lesson preparation trigger operation, and the lesson preparation interface of the triggered courseware page can be displayed. In this embodiment, the triggered courseware page is recorded as the current courseware page, and the lesson preparation interface associated with the current courseware page is recorded as the current lesson preparation interface.

It should be noted that the present embodiment sets a blackboard list for each courseware page in advance. When the courseware page is in the lesson preparation editing state, the blackboard list associated with the courseware page can also be edited. In the present embodiment, the blackboard editing control that the blackboard list editing depends on is included in the current lesson preparation interface where the current courseware page is located. The blackboard editing control can be used for the editing trigger of the blackboard list associated with the current courseware page.

c4) receiving an edit mode trigger operation, wherein the edit mode trigger operation is a trigger for the blackboard editing control.

In this embodiment, the edit mode trigger operation can be generated based on the trigger of the blackboard editing control, and the blackboard editing control can be triggered by physical buttons, keyboards, mice, touch controls, etc. This step can receive the generated edit mode trigger operation.

d4) Displaying a blackboard writing list editing window, wherein the blackboard writing list editing window includes a blackboard writing list in an editing state.

This step is equivalent to a response to the above-mentioned editing mode triggering operation, and can present a blackboard list editing window of the blackboard list associated with the current courseware page, and the blackboard list editing window contains the blackboard list in editing state.

In this embodiment, the blackboard list in the editing state is equivalent to setting the selected control and the editable control associated with each blackboard item in the blackboard list, and the blackboard list editing window also includes an edit response control.

Exemplarily, FIG1e shows an editing window display diagram of the blackboard list editing in the blackboard content display method provided in this embodiment. As shown in FIG1e, the current lesson preparation interface 13 is shown in the figure, and a blackboard list editing window 14 in a new layer is presented above the layer to which the current lesson preparation interface belongs; the blackboard list editing window 14 displays the blackboard list 141 associated with the current courseware page, and a selection control 142 is set before each blackboard entry in the blackboard list 141, and a deletion control 143 is set after each blackboard entry. In the blackboard list editing window 14, there are also a selected deletion control 144 and a selected integration control 145, and an entry addition control 146 may also be included when the last blackboard entry is sent.

e4) Responding to a list editing operation relative to the blackboard list.

In this embodiment, the list editing operation may include the selection operation of the selected control in the blackboard list editing window, as well as the integration operation and deletion operation after the selection; it may also include the deletion operation of any blackboard entry, or the operation of adding a new blackboard entry, etc.

Taking the blackboard writing list editing window of the example of Figure 1e above as an example, for example, you can select multiple blackboard writing items in the blackboard writing list editing window 14 by selecting the control 142, and then trigger the selection deletion control 144. This step responds to the selection deletion operation of the list editing, and then you can delete the selected multiple blackboard writing items; for another example, you can select multiple blackboard writing items in the blackboard writing list editing window 14 by selecting the control 142, and then trigger the selection integration control 145. This step responds to the selection integration operation of the list editing, and you can integrate the selected multiple blackboard writing items into one blackboard writing item; for another example, you can trigger the item adding control 146 in the blackboard writing list editing window 14. This step responds to the item adding operation of the list editing, and you can write new blackboard writing content in the pop-up edit box to form a new blackboard writing item.

f4) Displays the edited blackboard list.

After responding to various list editing operations through the above steps, this step can present the edited blackboard list. The blackboard list is still associated with the current courseware page, and when the display logic of the blackboard list is subsequently executed, the blackboard list presented is the edited and updated list. Among them, the blackboard list can be presented in the blackboard list editing window after responding to the list editing operation.

It should be noted that, assuming that a new blackboard entry is added during the blackboard list editing stage, after the display operation of the new blackboard entry is triggered, the blackboard content of the new blackboard entry can be presented in the set font style at any position on the current courseware page, and the display position of the blackboard content is adjustable.

Exemplarily, FIG. 1f shows a display diagram of the effect of blackboard list editing in the blackboard content display method provided in this embodiment. FIG. 1f can be regarded as a display of the effect after the selected blackboard entry is selected and integrated. Compared with the blackboard list presented in FIG. 1e, the blackboard list 147 shown in FIG. 1f contains a new blackboard entry with an entry identifier of 1'. The new blackboard entry is equivalent to integrating the blackboard entries with entry identifiers 1 and 2 in FIG. 1e. At the same time, in FIG. 1f, the entry identifiers of the remaining blackboard entries contained in the blackboard list are also updated. In FIG. 1f, the blackboard list 147 is presented in the blackboard list editing window 14. The presentation interface also includes two operation controls, namely, save and continue editing. After the save is triggered, the blackboard list presented after editing can be associated with the current courseware page. Record; after the continue editing is triggered, the blackboard list editing interface shown in FIG. 1e can be returned to be presented again, and the blackboard list can be edited again.

This third optional embodiment provides a specific implementation of blackboard list editing, which is equivalent to adding a blackboard list editing function in the cloud courseware teaching software. The above technical solution provides teachers with more interactive space in e-teaching, improves the functional application of cloud courseware teaching, and better improves the teaching experience and teaching quality.

Embodiment 2

FIG2 is a schematic diagram of the structure of an electronic device provided in Embodiment 2 of the present application. As shown in FIG2 , the electronic device 30 may include: a display screen 300 , at least one processor 301 , at least one network interface 304 , a user interface 303 , a memory 305 , and at least one communication bus 302 .

The communication bus 302 is used to realize the connection and communication between these components.

The user interface 303 may include a display screen (Display) and a camera (Camera) connection interface, and the optional user interface 303 may also include a standard wired interface and a wireless interface.

The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

The processor 301 may include one or more processing cores. The processor 301 uses various interfaces and lines to connect various parts of the entire electronic device 30, and executes various functions and processes data of the electronic device 30 by running or executing instructions, programs, code sets or instruction sets stored in the memory 305, and calling data stored in the memory 305. Optionally, the processor 301 can be implemented in at least one hardware form of digital signal processing (DSP), field programmable gate array (FPGA), and programmable logic array (PLA). The processor 301 can integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. Among them, the CPU mainly processes the operation of the user interface and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; and the modem is used to process wireless communication. It is understandable that the above-mentioned modem may not be integrated into the processor 301, but may be implemented by a single chip.

In this embodiment, the processor 301 runs a client having a blackboard content display function on the electronic device, and the display screen 300 displays the content when the client runs; wherein,

Processor 301 receives a courseware page display operation;

The display screen 300 displays the current teaching interface, in which the courseware content of the current courseware page is displayed;

The processor 301 receives a blackboard list trigger operation;

The display screen 300 displays a blackboard list, the blackboard list is displayed in the current teaching interface, and the blackboard list is pre-associated with the current courseware page;

The processor 301 receives a blackboard content display operation, where the blackboard content display operation is a trigger for any blackboard entry in the blackboard list;

The display screen 300 displays the blackboard content of the blackboard entry.

The memory 305 in the electronic device 30 may include a random access memory (RAM) or a read-only memory (ROM). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 may be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 305 may also be at least one storage device located away from the aforementioned processor 301. As shown in FIG. 2 , the memory 305 as a computer storage medium may include an operating network communication module, a user interface module, and an operating application program of the electronic device. In the electronic device 30 shown in FIG. 2 , the user interface 303 is mainly used to provide an input interface for the user and obtain data input by the user; and the processor 301 can be used to call the operating application of the electronic device stored in the memory 305, and specifically perform the following operations:

Receive courseware page display operation;

Receive blackboard list trigger operation;

Display the blackboard content of the blackboard entry.

Furthermore, the processor 301 calls the program in the memory 305 to hide the blackboard list when displaying the blackboard content of the blackboard entry, or to continuously present the blackboard list.

Furthermore, the processor 301 calls the program in the memory 305 and can also restore and display the blackboard content of the blackboard entry on the current courseware page through the display screen 300; or,

Furthermore, the specific implementation of the processor 301 calling the program in the memory 305 to restore and display the blackboard content of the blackboard entry on the current courseware page through the display screen 300 includes: when the writing form associated with the blackboard entry is writing on the teaching interface, determining the first handwriting point information of the blackboard content in the blackboard entry relative to the current courseware page; based on the first handwriting point information, restoring and displaying the first writing handwriting constituting the blackboard content on the current courseware page.

Furthermore, the specific implementation of the processor 301 calling the program in the memory 305 to restore and display the blackboard content of the blackboard entry in a pop-up writing board window through the display screen 300 includes: when the writing form associated with the blackboard entry is writing on the writing board window, the writing board window is popped up; the second handwriting point information of the blackboard content in the blackboard entry relative to the writing board window is determined; and according to the second handwriting point information, the second writing handwriting constituting the blackboard content is restored and displayed in the writing board window.

Furthermore, the processor 301 calls the program in the memory 305 and can also enter the blackboard writing mode in response to the blackboard writing mode trigger operation; receive the movement operation of the touch object in the writing area, wherein the writing area is the current teaching interface, or is a writing board window, and the layer to which the writing board window belongs is located above the layer to which the current teaching interface belongs, and the writing handwriting is presented in the writing area through the display screen 300.

Furthermore, when the processor 301 calls the program in the memory 305 to present the handwriting in the writing area through the display screen 300, a blackboard entry can be formed based on the presented handwriting, and the blackboard entry can be updated to the blackboard list associated with the current courseware page.

Furthermore, the specific implementation of the processor 301 forming a blackboard entry based on the presented handwriting and updating the blackboard entry to the blackboard list associated with the current courseware page includes: determining the presentation interval time between the current handwriting presented and the previous handwriting; forming a blackboard entry according to the presentation interval time and the set interval time; adding the formed blackboard entry to the blackboard list associated with the current courseware page to obtain an updated blackboard list.

Furthermore, the specific implementation of the processor 301 forming a blackboard entry based on the presentation interval time and the set interval time includes: if the presentation interval time is less than the set interval time, adding the current writing handwriting to the target writing handwriting set to which the previous writing handwriting belongs; otherwise, forming a blackboard entry based on the writing handwriting in the target writing handwriting set, and adding the current writing handwriting to the cleared target writing handwriting set; taking the current writing handwriting as the new previous writing handwriting, returning to execute the presentation interval determination operation until the writing handwriting generation is stopped.

Furthermore, the processor 301 calls the program in the memory 305 and can also store the updated blackboard list in association with the current courseware page when the blackboard information storage condition is met.

Furthermore, the processor 301 may also receive a lesson preparation trigger operation;

Displaying the current lesson preparation interface of the current courseware page through the display screen 300, wherein the current lesson preparation interface includes a blackboard editing control of the current courseware page;

The processor 301 may also receive an edit mode trigger operation, where the edit mode trigger operation is a trigger on the blackboard editing control;

Displaying a blackboard writing list editing window through the display screen 300, wherein the blackboard writing list editing window includes a blackboard writing list in an editing state;

The processor 301 may also respond to a list editing operation relative to the blackboard list;

The edited blackboard list is presented through the display screen 300.

When an electronic device provided in the second embodiment of the present application executes the blackboard content display method provided in the above-mentioned first embodiment, it has the functions and beneficial effects corresponding to the blackboard content display method.

Embodiment 3

Embodiment 3 of the present application further provides a computer storage medium, wherein the computer storage medium can store multiple instructions.

The instructions are suitable for being loaded by a processor and executing the steps of the method provided in Example 1. The specific execution process can refer to the description of Example 1 and will not be repeated here.

The device where the storage medium is located may be an electronic device that integrates the blackboard display method.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods or computer program products.

Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

The present application is described with reference to the flowchart and/or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each process and/or box in the flowchart and/or block diagram, and the combination of the process and/or box in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

In a typical configuration, a computing device includes one or more processors (CPU), input/output interfaces, network interfaces, and memory.

Memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and/or non-volatile memory in the form of read-only memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium. Computer-readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, modules of programs or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory media such as modulated data signals and carrier waves. It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

A method for displaying blackboard content, comprising:

Receive courseware page display operation;

Display the current teaching interface, in which the courseware content of the current courseware page is displayed;

Receive blackboard list trigger operation;

Displaying a blackboard list, wherein the blackboard list is displayed in the current teaching interface, and the blackboard list is pre-associated with the current courseware page;

Receiving a blackboard content display operation, wherein the blackboard content display operation is a trigger for any blackboard entry in the blackboard list;

Display the blackboard content of the blackboard entry.
The method according to claim 1, wherein, when displaying the blackboard content of the blackboard entry, it also includes:

Hide the blackboard writing list, or continue to present the blackboard writing list.
The method according to claim 1, wherein the displaying the blackboard content of the blackboard entry comprises:

Restoring and displaying the blackboard content of the blackboard entry on the current courseware page; or,

The blackboard content of the blackboard entry is restored and displayed in a pop-up writing board window, and the layer to which the writing board window belongs is located above the layer to which the current teaching interface belongs.
The method according to claim 3, wherein restoring and displaying the blackboard content of the blackboard entry on the current courseware page comprises:

When the writing form associated with the blackboard entry is writing on the teaching interface, determining the first handwriting point information of the blackboard content in the blackboard entry relative to the current courseware page;

According to the first handwriting point information, the first writing handwriting constituting the blackboard content is restored and displayed on the current courseware page.
The method according to claim 3, wherein restoring and displaying the blackboard content of the blackboard entry in the pop-up writing board window comprises:

When the writing form associated with the blackboard entry is writing on a writing board window, the writing board window pops up;

Determine the second handwriting point information of the blackboard writing content in the blackboard writing entry relative to the writing board window;

According to the second handwriting point information, the second handwriting constituting the blackboard writing content is restored and displayed in the writing board window.
The method according to claim 1, wherein after displaying the current teaching interface, it also includes:

In response to a blackboard writing mode trigger operation, entering a blackboard writing mode;

Receiving a moving operation of a touch object in a writing area, wherein the writing area is the current teaching interface, or is a writing board window, and a layer to which the writing board window belongs is located above a layer to which the current teaching interface belongs;

The writing traces are presented in the writing area.
The method according to claim 6, wherein when presenting the handwriting in the writing area, it further comprises:

A blackboard entry is formed based on the presented handwriting, and the blackboard entry is updated to the blackboard list associated with the current courseware page.
The method according to claim 7, wherein forming a blackboard entry based on the presented handwriting and updating the blackboard entry to the blackboard list associated with the current courseware page comprises:

Determine the interval between the presentation of the current handwriting and the presentation of the previous handwriting;

Forming blackboard entries according to the presentation interval time and the set interval time;

The formed blackboard entry is added to the blackboard list associated with the current courseware page to obtain an updated blackboard list.
The method according to claim 8, wherein the step of forming a blackboard entry according to the presentation interval and the set interval comprises:

If the presentation interval is less than the set interval, the current handwriting is added to the target handwriting set to which the previous handwriting belongs; otherwise,

Forming a blackboard entry based on the handwriting in the target handwriting set, and adding the current handwriting to the cleared target handwriting set;

The current handwriting is taken as the new previous handwriting, and the operation of determining the presentation interval is returned to be executed until the handwriting generation is stopped.
The method according to any one of claims 7 to 9, further comprising:

When the blackboard information storage condition is met, the updated blackboard list is associated with the current courseware page and stored.
According to the method of claim 10, the blackboard information storage condition is to monitor that the blackboard list is updated and the blackboard storage time is reached; or, to monitor that the blackboard writing relative to the current courseware page is completed.
The method according to claim 1, further comprising:

Receive lesson preparation trigger operations;

Display the current lesson preparation interface of the current courseware page, wherein the current lesson preparation interface includes a blackboard editing control of the current courseware page;

Receiving an edit mode trigger operation, wherein the edit mode trigger operation is a trigger on the blackboard editing control;

Display a blackboard writing list editing window, wherein the blackboard writing list editing window includes a blackboard writing list in an editing state;

Responding to a list editing operation relative to the blackboard list;

Presents the edited blackboard list.
An electronic device comprises: a display screen and one or more processors; the processor runs a client having a blackboard content display function on the electronic device, and the display screen displays content when the client runs; wherein:

The processor receives a courseware page display operation;

The display screen displays the current teaching interface, and the current teaching interface displays the courseware content of the current courseware page;

The processor receives a blackboard list trigger operation;

The display screen displays a blackboard list, the blackboard list is displayed in the current teaching interface, and the blackboard list is pre-associated with the current courseware page;

The processor receives a blackboard content display operation, where the blackboard content display operation is a trigger for any blackboard entry in the blackboard list;

The display screen displays the blackboard content of the blackboard entry;

The electronic device further comprises: a memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 12.
A computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, the method according to any one of claims 1 to 12 is implemented.