A multifunctional intelligent electronic blackboard system

Abstract

A multifunctional intelligent electronic blackboard system includes a hardware system and a software system, teaching material electronic documents; the hardware system includes a computer host, an electronic display device with a touch control function; the software system includes a blackboard module, a material display comment module, further includes a hidden displayable teaching material prompt frame and a control module thereof; further includes a word-by-word presentation position indicating icon on the electronic blackboard surface, and a "teaching material word-by-word presentation leading prompt area" capable of presenting multiple text characters is bound at a distance on one side of the icon; further includes an icon presentation module, an icon position moving module, a word-by-word presentation module and a "teaching material word-by-word presentation leading prompt area" multiple word presentation module; the present application realizes the word-by-word presentation of the content of the teaching material electronic documents on any area of the electronic blackboard surface, truly fuses the traditional teaching writing and the modern presentation technology, reduces the burden of teachers, increases the efficiency of teaching, and provides a new technical scheme.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of multimedia teaching equipment, and particularly belongs to an intelligent electronic blackboard system with teaching material prompting function and teaching material verbatim presentation function. BACKGROUND

[0002] With the rapid development and popularization of electronic display technology, computer technology and touch technology, the teaching writing display equipment used in classroom teaching has gradually evolved from traditional blackboard through green board-white board-multimedia projection-projection interactive electronic whiteboard to liquid crystal touch all-in-one machine interactive electronic whiteboard (blackboard).

[0003] The current liquid crystal touch all-in-one machine interactive electronic whiteboard (blackboard) has become an important part of classroom teaching in primary and secondary schools. Its application not only makes up for the shortcomings of traditional blackboard, green board, white board, multimedia projection products in terms of inability to remember board writing content and inability to annotate electronic display resources, but also effectively integrates teaching resources and presents them to students in a scientific and reasonable manner and order, enriches classroom teaching content, stimulates students' interest in learning, and promotes teacher-student interaction in the classroom.

[0004] However, through extensive research on the use of liquid crystal touch all-in-one machine interactive electronic whiteboard (blackboard), it was found that when teachers use it to teach students, the teacher's hand still holds some teaching materials, outlines or books on the desk to assist teaching, which is inconvenient for the teaching process.

[0005] In addition, when using electronic teaching materials for classroom teaching, the liquid crystal touch all-in-one machine interactive electronic whiteboard (blackboard) cannot inherit and integrate traditional teaching, completely losing the advantage of traditional blackboard verbatim writing teaching to guide students' thinking process, which leads to a high probability of forming a classroom phenomenon (in fact, all electronic teaching equipment used in the classroom since the projector has this problem!). SUMMARY

[0006] The purpose of the present application is to use electronic blackboard to present and prompt teaching material content during the process of using electronic blackboard board writing teaching, instead of using paper teaching materials, outlines or books to assist teaching, to further improve teaching efficiency and provide teachers with better teaching methods and teaching experience.

[0007] Another object of the present application is to realize the content of the electronic teaching materials (teaching outline or book content) in any area of the electronic blackboard surface during the teaching process using the prepared electronic teaching materials on the electronic blackboard, so that the presentation process of the electronic teaching materials is completely the same as the traditional teaching writing process, and the advantages of traditional teaching writing and modern presentation technology are combined, which can not only reduce the workload of teachers and increase the efficiency of teaching, but also overcome the phenomenon of filling the classroom formed by the existing audio-visual equipment.

[0008] To achieve the above object, the present application provides the following technical solutions:

[0009] A multifunctional intelligent electronic blackboard system, comprising a hardware system and a software system, teaching material electronic documents; the hardware system comprises a computer host and an electronic display device with touch function; the software system comprises a blackboard module, a material display annotation module and other auxiliary teaching modules; characterized in that the software system further comprises a hidden and displayable teaching material prompt box and a control module thereof; the teaching material prompt box is used for presenting and prompting the content of the next step of the teaching material electronic documents during the teaching process. Thus, the teacher's hand or the teaching outline or book used for teaching can be placed on the desk to assist teaching when the teacher uses the electronic blackboard to teach students; the teaching material prompt box is in a hidden (closed) state by default, and is in an open and displayed (opened) state when needed by the teacher to realize prompting; the closing of the prompt box is realized by a "close teaching material prompt box button" in the prompt box; the opening (opening) of the prompt box can be realized in various ways, which can be an opening button specially set for opening the prompt box, or a special operation of other buttons in the electronic blackboard system, or a special gesture or a special touch operation on the electronic blackboard; the prompt box control module is used for opening and closing the prompt box, moving the position of the prompt box, and calling the electronic documents and presenting the content of the next step of the teaching materials in the prompt box. The software system further comprises a word-by-word presentation position indicating icon on the electronic blackboard surface, which is used for indicating the starting position of the teaching materials to be presented word by word on the blackboard; a "teaching material word-by-word presentation leading prompt area" capable of presenting multiple text characters is bound at a distance on one side of the word-by-word presentation position indicating icon, which is used for low-brightness sequential multi-character presentation of the content of the teaching materials to be presented word by word; the software system further comprises an icon presentation module, an icon position moving module, a word-by-word presentation module and a multi-character presentation module of the "teaching material word-by-word presentation leading prompt area";

[0010] The teaching material prompt frame comprises a "prompt content area" for displaying the prompted content, and a moving slider in the area for marking a certain position of the graphic text in the material content; the moving slider can slide on the content in the "prompt content area" by dragging, and the sliding on a certain content can memorize the position of the content in the teaching material, which can provide a starting point for prompting the teaching material when the prompt frame is opened again after being closed, and can also provide a starting point for other applications to present or prompt the teaching material; a function control area is provided outside the area, comprising a "close teaching material prompt frame button", a "prompt content page turning button" and a "prompt frame position moving button"; the "close teaching material prompt frame button" is used to call the prompt content control submodule in the prompt frame control module to close the prompt frame, the "prompt content page turning button" is used to call the prompt content control submodule in the prompt frame control module to turn the pages forward and backward to find the teaching prompt content, and when the "prompt frame position moving button" is dragged, the prompt content control submodule in the prompt frame control module is called to move the prompt frame to a place convenient for viewing from the teacher's perspective;

[0011] The prompt box control module comprises a teaching material electronic document reading submodule and a prompt content control submodule; the teaching material electronic document reading submodule is used for reading teaching material electronic document content and prompting in a prompt content area of the prompt box; the teaching material electronic document reading submodule has corresponding graphic and text content extraction programs of Word documents, PPT documents, PDF documents, real-time camera (or real object exhibition stand) images and general electronic documents in different picture formats, which are used for extracting graphic and text content of corresponding electronic documents; the teaching material electronic document reading submodule has a program for presenting read graphic and text content in the opened prompt box "prompt content area"; when the prompt box is opened, the read graphic and text content is prompted in the prompt content area of the prompt box by pages; the starting character position of the current page of the prompt content area is memorized by a moving slider of the prompt content area when the prompt box is closed last time; if the prompt box is opened for the first time, the position is the first position of the read teaching material graphic and text content; the prompt content control submodule has a moving slider function program of the prompt content area, a "close teaching material prompt box" function program, a "prompt content page turning" function program, a "prompt box position moving" function program and a "prompt box opening control" function program, which are respectively used for completing the moving of the moving slider of the prompt content area, the functions of the "close teaching material prompt box button", the "prompt content page turning button" and the "prompt box position moving button" and opening the prompt box; the opening of the prompt box can have multiple different methods, which are as follows: 1, a special opening button can be set for opening the prompt box; 2, the opening of the prompt box can also be realized by means of special operation of buttons of other functions in the electronic blackboard system, such as single click operation of the following "word-by-word presentation position indicating icon"; 3, a certain operation on the electronic blackboard can be defined, such as a certain special gesture or a certain special touch operation, etc.; when a certain opening method is selected, the prompt content control submodule has a method and program for judging the opening of the prompt box.

[0012] The electronic blackboard is provided with a word-by-word presentation position indicating icon on the board surface, which is used to indicate the starting position of the data to be presented word by word on the blackboard. The design is to realize that the electronic teaching data can be presented word by word from the position indicated by the icon. The technical solution is to solve the problem that the existing electric teaching equipment cannot or is not convenient to realize the "traditional ordinary blackboard teaching when a word is written to guide the students' thinking and let the students better accept the explanation content" when using WORD, PDF, PPT, camera (or real object exhibition stand) to take images (paper materials such as books) or general electronic document teaching in different picture formats. In order to let the teacher present the data word by word, first read the content and then present the content on the blackboard, and ensure that the read content is consistent with the presented content, a "teaching data word-by-word presentation leading prompt area" capable of presenting multiple text characters is bound at a distance on one side of the word-by-word presentation position indicating icon, which is used to present the teaching data content to be presented word by word in low brightness and sequence, so as to realize the prompting for the teacher. In order to realize the above functions, the icon presentation module, the icon position moving module, the word-by-word presentation module and the "teaching data word-by-word presentation leading prompt area" multi-word presentation module are further included. They cooperate with each other to complete the word-by-word presentation and leading prompt function of simulating traditional teaching.

[0013] The word-by-word presentation position indicating icon is moved to the corresponding position of the touch operation by calling the icon position moving module through the specified touch operation (such as double-click touch, such as a certain specific touch gesture, generally not using single-click touch, because single-click touch is used for the blackboard writing function) on any position (a point) of the blackboard. This design allows the teacher to use any position on the blackboard as the starting position of the teaching material to be presented word by word, that is, the teaching material to be presented word by word can start from any area and position of the blackboard. Dragging the icon to any direction of the right part calls the icon position moving module, and the icon can be moved to any direction of the right part. When the icon is dragged to move in a certain direction, the multi-word presentation module of the "teaching material word-by-word presentation leading prompt area" presents the content to be presented word by word in sequence in the "teaching material word-by-word presentation leading prompt area" with low brightness. The presented data characters start from the graphic position remembered by the moving slider in the prompt content area of the teaching material prompt box in the blackboard system. With the movement of the icon, the word-by-word presentation module is called to normally present the teaching material in word-by-word in sequence on the side of the icon in the opposite direction of the movement with normal brightness. The vertical line of each word in the normally presented teaching material in word-by-word is perpendicular to the moving direction of the icon. With the movement of the icon, the normally presented teaching material characters in word-by-word are removed from the left end of the "teaching material word-by-word presentation leading prompt area", and the subsequent characters of the presented content in the "teaching material word-by-word presentation leading prompt area" are moved into the "teaching material word-by-word presentation leading prompt area" from the right end of the "teaching material word-by-word presentation leading prompt area". This design allows the teacher to first recite the content and then present the content on the blackboard when presenting the data word by word, and ensures that the recited content is consistent with the presented content.

[0014] The "teaching material word-by-word presentation leading prompt area" capable of presenting multiple text characters is also bound at a distance on one side of the icon, and the one side of the icon is the right side of the icon, including the upper right side, the lower right side, and the right side.

[0015] The specified touch operation on any position (a point) of the blackboard refers to the touch screen single-click, double-click, right-click, single-finger gesture, double-finger gesture, or multi-finger gesture operation. Generally, single-click touch is not used because single-click touch is used for writing function in some blackboard systems.

[0016] The teaching material electronic document is a Word document, a PPT document, a PDF document, a real-time image taken by a camera (book paper material), or a general electronic document in different picture formats.

[0017] The implementation (use) method of the above-mentioned intelligent electronic blackboard system includes the following steps:

[0018] 1) Put the "teaching material electronic document" file in the computer hard disk of the intelligent electronic blackboard system (or store it in the mobile external storage device and connect it to the electronic blackboard system, or open the camera (physical exhibition stand) and connect the electronic blackboard system, and copy a special icon file representing the camera to the computer desktop (at this time, the "teaching material electronic document" is the real-time camera (physical exhibition stand) taken book paper image));

[0019] The "teaching material electronic document" is a Word document, a PPT document, a PDF document file, a camera (physical exhibition stand) real-time camera taken book paper image, and a general electronic document file in different picture formats;

[0020] 2) Start the intelligent electronic blackboard system with the material prompt function and the teaching material word-by-word presentation function, and call the teaching material electronic document reading submodule in the teaching material prompt box control module during the starting process. The "teaching material electronic document reading submodule" selects the "teaching material electronic document" and reads its graphic content, processes the content into computer variable usable text content and image content, and puts these contents into computer variables. The specific steps are as follows:

[0021] a. The teaching material electronic document reading submodule first displays a file opening dialog box to assist the teacher in selecting the "teaching material electronic document" file on the hard disk or other mobile external storage. If the book paper material content on the camera (physical exhibition stand) is used, a special icon file representing the camera on the desktop is selected;

[0022] b. According to the type of the selected "teaching material electronic document", the corresponding "Word document, PPT document, PDF document, camera (physical exhibition stand) image and general electronic document in different picture formats" graphic content extraction program is called;

[0023] c. The corresponding graphic content extraction program transmits the extracted graphic content to the computer variable. When the teaching material prompt box is opened, the read graphic content is presented in the opening prompt box "prompt content area" for teaching;

[0024] 3) The blackboard module presents the blackboard while presenting the "word-by-word presentation position indicating icon";

[0025] 4) When the teacher needs prompts for the teaching materials, the prompt box is activated (it can be activated in three ways: 1. A dedicated activation button can be set up; clicking it activates the prompt box; 2. It can be activated using a special operation of other function buttons in the electronic blackboard system, such as clicking the "character-by-character position indicator icon" mentioned in step 3); 3. A specific operation can be defined on the electronic blackboard, such as a special gesture or a special touch operation to activate the prompt box, etc. When an activation method is selected, the prompt content control submodule contains a corresponding method and program for determining when to activate the prompt box). When the "Teaching Materials Prompt Box" is activated on the blackboard interface, the read text and graphics content is presented in the "Prompt Content Area" of the activated prompt box, and the next explanation content is also presented in the "Teaching Materials Prompt Box". The starting character position of the current page in the "Prompt Content Area" of the prompt box is remembered by the slider of the "Prompt Content Area" when the prompt box was last closed. If the prompt box is being opened for the first time, this position is the first position of the read text and graphics content. Present the "Teaching Material Prompt Box" while hiding the "Word-by-Word Location Indicator Icon";

[0026] 5) When the "Teaching Material Prompt Box" is displayed, when the teacher writes on the blackboard, the blackboard module calls the "Prompt Box Position Movement" function program in the prompt content control submodule of the prompt box control module, and automatically moves the teaching plan content prompt box to a position that is convenient for the teacher to see according to the writing position.

[0027] 6) The "Teaching Materials Prompt Box" control module implements the corresponding functions of the "Close Teaching Plan Content Prompt Box Button", "Prompt Content Page Turning Button", "Prompt Box Position Moving Button", and the moving slider of the "Teaching Materials Prompt Box". The steps are as follows:

[0028] a. Clicking the "Prompt Content Page Turning Button" in the "Teaching Plan Content Prompt Box" allows you to browse the teaching plan prompts in a forward or backward sequence; dragging the "Prompt Box Position Move Button" moves the "Teaching Plan Content Prompt Box" to a view that is convenient for the teacher to use.

[0029] b. When teaching material prompts are not needed, click the "Close Material Prompt Box" button to close the "Teaching Material Prompt Box". Before closing it, teachers can drag the slider to move it according to the needs of the next step of the explanation and remember the position of the next content to be explained in the teaching plan. Closing the "Teaching Material Prompt Box" will also display a "Word-by-Word Position Indicator Icon".

[0030] 7) When teachers need to use electronic teaching materials to present the content word by word on a specific location on the blackboard, similar to traditional blackboard teaching where each word is written to guide students' thinking and help them better understand the content, the specific steps are as follows:

[0031] Firstly, open the teaching material prompt box by step 4), find the material to be presented word by word by step 6) and move the slider to the starting character (position) of the word by word presentation, close the "teaching material prompt box" and present the "word by word presentation position indicating icon" at the same time;

[0032] a. Perform a specified touch operation (such as double-click touch, such as a certain specific touch gesture, generally do not use single-click touch, because single-click touch is used for blackboard writing function) at a certain position on the blackboard to call the icon position moving module to move the "word by word presentation position indicating icon" to the corresponding position of the touch operation;

[0033] b. Drag the icon to any direction on the right part to call the icon position moving module, and the icon can be moved in any direction;

[0034] c. When the icon is dragged to move in a certain direction, call the multi-word presentation module of the "teaching material word by word presentation leading prompt area" to present the content to be presented word by word in the "teaching material word by word presentation leading prompt area" in low brightness in sequence, and the presented material characters are from the graphic position memory of the slider in the prompt content area of the teaching material prompt box in the blackboard system.

[0035] d. With the movement of the icon, call the word by word presentation module to present the teaching material word by word in normal brightness in the sequence presented in low brightness in the leading prompt area on the side opposite to the icon in the opposite direction of the movement, and the vertical line of each word in the word by word presented teaching material is perpendicular to the moving direction of the icon.

[0036] With the movement of the icon, the teaching material characters presented word by word in normal brightness are removed from the left end of the "teaching material word by word presentation leading prompt area", and the subsequent characters of the presented content in the "teaching material word by word presentation leading prompt area" are sequentially removed from the right end of the "teaching material word by word presentation leading prompt area" into the "teaching material word by word presentation leading prompt area".

[0037] Compared with the prior art, the beneficial effects of the present application are as follows: the intelligent electronic blackboard system of the present application includes a teaching material prompt box and a control module thereof for presenting and prompting the teaching material electronic document content for the next step of explanation by the teacher during the teaching process, which eliminates the need for the teacher to place the teaching plan, outline or book used for the class on the table or in the hand of the teacher when using the electronic blackboard to teach the students. The present application can also realize the word by word presentation of the content of the teaching material electronic document on any area of the electronic blackboard, so that the presentation process of the electronic teaching material is exactly the same as the traditional teaching writing process, truly integrates the traditional teaching writing with the modern presentation technology, and effectively solves the problem of the existing electronic blackboard. The present application can reduce the burden of the teacher and increase the efficiency of the teaching under the premise of not affecting the teaching effect. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 Hardware system connection diagram of the present invention

[0039] Figure 2 Schematic diagram of the software system composition of this invention

[0040] Figure 3 Illustrations of the "Word-by-Word Position Indicator Icon" button and the "Teaching Material Prompt Box" on / off on the electronic blackboard interface

[0041] Figure 4 A diagram of the "Word-by-Word Presentation Position Indicator Icon" on the electronic blackboard interface and the "Teaching Material Word-by-Word Presentation Preview Area" on the upper right.

[0042] Figure 5 Schematic diagram of the internal area of ​​the "Teaching Materials Prompt Box"

[0043] Figure 6 Schematic diagram of the "Teaching Materials Prompt Box" control module

[0044] Figure 7 A diagram illustrating how the "Teaching Material Prompt Box" moves as the teacher writes.

[0045] Figure 8 A diagram illustrating the drag-and-drop movement of the "Teaching Materials Prompt Box" Detailed Implementation

[0046] The present invention will be further described in detail below with reference to the accompanying drawings.

[0047] Example 1:

[0048] An intelligent electronic blackboard system includes a hardware system and a software system, as well as electronic teaching materials; in this example, the electronic teaching materials are PPT documents named "teaching materials.pptx"; the hardware system includes an OPS pluggable computer host with multiple graphics cards, and two LCD touch screen all-in-one machines with touch functionality, such as... Figure 1 As shown, their connection relationship is as follows: the OPS pluggable computer host is inserted into one of the LCD touch screen all-in-one machines; the HDMI output of the OPS pluggable computer host is connected to the HDMI input of the other LCD touch screen all-in-one machine; and the USB input interface of the OPS pluggable computer host is connected to the touch signal output interface of the other LCD touch screen all-in-one machine. Figure 1 As shown; the software system includes a dual blackboard module, a dual data display and annotation module, and other auxiliary teaching modules; the software system also includes a hidden and visible teaching material prompt box and its control module, such as... Figure 2 , Figure 3 As shown in Figure A; the teaching material prompt box, such as Figure 5The teaching material electronic document content is shown for presenting, prompting the next explanation of the teacher in the teaching process. Thus, the teacher can not hold or place the teaching plan, outline or book on the desk to assist the teaching when the teacher uses the electronic blackboard to teach the students. The teaching material prompt box is in a hidden (closed) state by default, as shown in Figure 3 B; the teacher needs to click the word-by-word presentation position indicating icon as described below to realize the prompting, the teaching material prompt box is in an open, displayed (opened) state, and the prompting is realized, as shown in Figure 3 A and B; the closing of the prompt box is realized by the "close teaching material prompt box button" in the prompt box. The prompt box control module is used for opening and closing the prompt box, moving the position of the prompt box, and calling the electronic document and presenting the teaching material content of the next explanation in the prompt box. The software system further includes a word-by-word presentation position indicating icon on the electronic blackboard, as shown in Figure 3 B, which is used for indicating the starting position of the teaching material to be presented word by word on the blackboard. A "teaching material word-by-word presentation leading prompt area" capable of presenting multiple text characters is further bound at a distance on the upper right side of the word-by-word presentation position indicating icon, which is used for highlighting and sequentially presenting multiple characters of the teaching material content to be presented word by word. The software system further includes an icon presenting module, an icon position moving module, a word-by-word presentation module and a "teaching material word-by-word presentation leading prompt area" multiple word presenting module, as shown in Figure 2

[0049] The teaching material prompt box, as shown in Figure 5 , includes a "prompt content area" for displaying the prompted content, a moving slider is arranged in the area for marking a certain position of the graphic text content. The moving slider can be dragged to slide on the content in the "prompt content area", and the sliding on a certain content can memorize the position of the content in the teaching material. The position can provide the starting point for prompting the teaching material when the prompt box is closed and then opened again, and can also provide the starting point for presenting or prompting the teaching material for other applications. A function control area is arranged outside the area, including a "close teaching material prompt box button", a "prompt content page turning button" and a "prompt box position moving button". The "close teaching material prompt box button" is used for calling the prompt content control submodule in the prompt box control module to close the prompt box. The "prompt content page turning button" is used for calling the prompt content control submodule in the prompt box control module to turn the pages forward and backward to find the teaching prompt content. When the "prompt box position moving button" is dragged, the prompt content control submodule in the prompt box control module is called to move the prompt box to a place convenient for the teacher to watch, as shown in Figure 8

[0050] The prompt box control module includes a teaching material electronic document reading submodule and a prompt content control submodule.​​Figure 6 As shown; the teaching material electronic document reading submodule is used to read the content of teaching material electronic documents and display it in the "prompt content area" of the prompt box. This submodule includes a program for extracting the text and image content of "Word documents, PPT documents, PDF documents, real-time captured camera (or document camera) images, and general electronic documents in different image formats." The submodule also includes a program that presents the read text and image content in the "prompt content area" of the prompt box. When the prompt box is opened, the read text and image content is displayed page by page in the "prompt content area." The starting character position of the current page in the "prompt content area" is remembered by the slider of the "prompt content area" when the prompt box was last closed. If the prompt box is being opened for the first time, this position is the first position of the read teaching material text and image content. The prompt content control submodule, as shown... Figure 6 As shown, the program includes functions for moving the slider in the "prompt content area," closing the teaching material prompt box, turning the prompt content page, moving the prompt box position, and controlling the prompt box opening. These functions are used to move the slider in the "prompt content area," close the teaching material prompt box, turn the prompt content page, move the prompt box position, and open the prompt box. The prompt box is opened by clicking the "character-by-character position indicator icon." The prompt content control submodule contains methods and programs for determining whether the prompt box is open.

[0051] The electronic blackboard surface is equipped with a character-by-character display position indicator icon, such as... Figure 3 B Figure 4 As shown, this indicator shows the starting position of the material to be presented word by word on the blackboard. This design aims to allow electronic teaching materials to be presented word by word starting from the position indicated by the icon. This technical solution addresses the problem that existing educational equipment cannot or is inconvenient to implement the traditional blackboard teaching method of writing each word to guide students' thinking and help them better understand the content when using Word, PDF, PPT, images captured in real-time by a camera (or document camera) (paper materials such as books), or common electronic documents in different image formats. To allow teachers to read the content aloud before presenting it on the blackboard, and to ensure that the read content matches the presented content, a "teaching material word-by-word presentation guide area" is also fixed at a certain distance to one side of the word-by-word presentation position indicator icon. This area displays multiple text characters sequentially and in low brightness, providing guidance to the teacher. Figure 4As shown; to achieve the above functions, it also includes an icon presentation module, an icon position movement module, a word-by-word presentation module, and a multi-word presentation module for the "word-by-word presentation of teaching materials pre-prompt area"; such as Figure 2 As shown, they work together to simulate the word-by-word presentation and pre-teaching prompts of traditional teaching.

[0052] The aforementioned word-by-word display of location indicator icons, such as Figure 4 As shown, a double-tap touch operation (touchscreen double-tap operation) at any point on the blackboard invokes the icon position movement module, moving the icon to the corresponding touch position. This design allows teachers to use any position on the blackboard as the starting point for the teaching materials to be presented word by word. In other words, the teaching materials to be presented word by word can begin from any area or position on the blackboard. Dragging the icon in any direction to the right invokes the icon position movement module, allowing the icon to move in any direction to the right. When dragging the icon in a certain direction, the multi-character presentation module of the "Teaching Materials Word-by-Word Presentation Preview Area" is invoked, displaying multiple characters of the content to be presented word by word in a low-brightness manner in the "Teaching Materials Word-by-Word Presentation Preview Area," such as... Figure 4 As shown, the presented text characters begin from the position of the text and image memorized by the slider in the prompt content area of ​​the teaching material prompt box in the blackboard system. As the icon moves, the word-by-word presentation module is invoked, and the teaching material is presented word by word at normal brightness on one side of the icon in the opposite direction of movement, following the low brightness presentation order of the preceding prompt area. The vertical line of each word in the teaching material is perpendicular to the direction of icon movement. As the icon moves, the words in the teaching material presented at normal brightness move out from the left end of the "teaching material word-by-word presentation preceding prompt area," and the subsequent characters in the content presented in the "teaching material word-by-word presentation preceding prompt area" move in from the right end of the "teaching material word-by-word presentation preceding prompt area." This design is to allow teachers to read the content aloud before presenting it on the blackboard when presenting the material word by word, and to ensure that the read content is consistent with the presented content.

[0053] The icon also has a "teaching material word-by-word presentation prompt area" that can display multiple text characters bound at a fixed distance on one side. The one side of the icon is the upper right side, the lower right side, and the right side of the icon. In this embodiment, it is the upper right side.

[0054] The phrase "when the teacher needs to provide a prompt, click the position indicator icon as described below, and the teaching material prompt box will be in an open / displayed (on) state to provide the prompt" can refer to: 1. a dedicated button for opening the prompt box; 2. a special operation using buttons from other functions in the electronic blackboard system; or 3. a specific operation defined on the electronic blackboard, such as a special gesture or touch operation to open the prompt box. When an opening method is selected, the prompt content control submodule contains a corresponding method and program for determining whether the prompt box is open.

[0055] The icon position moving module is invoked by double-clicking a touch operation (touchscreen double-click operation) at any position (a point) on the blackboard, and the icon is moved to the corresponding position of the touch operation. The double-click touch operation can also be a right-click, single-finger gesture, two-finger gesture, or multi-finger gesture operation, etc.

[0056] The teaching materials are electronic documents, including Word documents, PPT documents, PDF documents, images captured in real time by a camera (or document camera) (paper materials), or general electronic documents in different image formats. In this embodiment, it is a PPT document.

[0057] One implementation (use) method of the above-mentioned intelligent electronic blackboard system includes the following steps:

[0058] 1) Save the "Teaching Materials Electronic Document" file "Lecture Materials.pptx" to the computer hard drive of the intelligent electronic blackboard system (or save it on a USB flash drive and insert it into the electronic blackboard system);

[0059] 2) Turn on the intelligent electronic blackboard system with the functions of providing information prompts and presenting teaching materials word by word. During the startup process, the system calls the teaching materials electronic document reading submodule in the teaching materials prompt box control module. In the "teaching materials electronic document reading submodule", select "teaching materials.pptx" and read its text and image content. Process its content into text and image content that can be used by computer variables and put these contents into computer variables. The specific steps are as follows;

[0060] a. The electronic document reading module for teaching materials first displays a file open dialog box to help teachers select the "teaching materials.pptx" file on their hard drive or USB flash drive;

[0061] b. Based on the selected "Teaching Materials Electronic Document" PPT type, call the corresponding PPT document's image and text content extraction program;

[0062] c, the corresponding PPT document of the text content extraction program will be passed to the computer variable, in the teaching material prompt box open (open), read the text content presented in the open prompt box "prompt content area" for teaching;

[0063] 3) double blackboard module presents double blackboard while presenting "word by word presentation position indicating icon" as shown in Figure 3 、 Figure 4 ;

[0064] 4) when the teacher needs to teach the content of the teaching material, click "word by word presentation position indicating icon" to open the teaching material prompt box (there are methods and programs in the prompt content control submodule to judge and open the prompt box). When the blackboard interface opens to display the "teaching material prompt box", the read text content is presented in the open prompt box "prompt content area", and the next step of explanation content is presented in the "teaching material prompt box". The starting character position of the current page of the prompt content area of the prompt box is memorized by the moving slider of the prompt content area when the prompt box is closed last time. If the prompt box is opened for the first time, this position is the first position of the read teaching material text content. Presenting "teaching material prompt box" hides "word by word presentation position indicating icon" as shown in Figure 3 A;

[0065] 5) in the case of "teaching material prompt box" presentation, when the teacher writes on the blackboard, the blackboard module calls the "prompt box position moving" function program in the prompt content control submodule of the prompt box control module, and automatically moves the teaching material content prompt box to the position convenient for the teacher to watch visually according to the writing position, as shown in Figure 7 ;

[0066] 6) the "teaching material prompt box" control module completes the corresponding functions of the "close teaching material content prompt box button", "prompt content page turning button", "prompt box position moving button" and moving slider of the "teaching material prompt box", as shown in Figure 5 ;

[0067] a, click "prompt content page turning button" in "teaching material content prompt box" to sequentially find the teaching material prompt content forward and backward; drag "prompt box position moving button" to move "teaching material content prompt box" to the visual range convenient for the teacher to use, as shown in Figure 8 ;

[0068] b, when the teaching material prompt is not needed, click "close material prompt box button" to close "teaching material prompt box". Before closing, the teacher can move the slider to remember the position of the next step of explanation content in the teaching material content according to the next step of explanation requirement; closing "teaching material prompt box" presents "word by word presentation position indicating icon" again;

[0069] 7) When the teacher needs to use the content of the electronic document of teaching materials to present one word after another on the blackboard at a certain position like writing one word after another on the traditional ordinary blackboard to guide the students' thinking and make the students better accept the explanation, the specific steps are as follows:

[0070] First, open the teaching material prompt box through step 4), find the material to be presented one word after another through step 6), and move the slider to the starting character (position) of the presentation one word after another, close the "teaching material prompt box", and present the "presentation one word after another position indication icon" at the same time;

[0071] a. Perform a double-click touch operation on the starting position of the teaching material to be presented one word after another in any area of the blackboard to call the icon position moving module to move the "presentation one word after another position indication icon" to the corresponding position of the touch operation;

[0072] b. Drag the icon to any direction to the right to call the icon position moving module, which can move the icon in any direction;

[0073] c. When the icon is dragged to move in a certain direction, call the multi-word presentation module of the "teaching material presentation one word after another leading prompt area" to present the content to be presented one word after another in the "teaching material presentation one word after another leading prompt area" in order of multiple characters, and the presented character of the data is from the graphic position of the moving slider in the prompt content area of the teaching material prompt box in the blackboard system.

[0074] d. With the movement of the icon, call the presentation one word after another module to present the teaching material one word after another in normal brightness in the order of the low brightness presentation of the leading prompt area on the side opposite to the moving direction of the icon. The vertical line of each word in the presented teaching material is perpendicular to the moving direction of the icon.

[0075] With the movement of the icon, the character of the teaching material presented one word after another in normal brightness is removed from the left end of the "teaching material presentation one word after another leading prompt area", and the subsequent characters of the presented content of the "teaching material presentation one word after another leading prompt area" are sequentially removed from the right end of the "teaching material presentation one word after another leading prompt area" to the "teaching material presentation one word after another leading prompt area".

Claims

1. A multifunctional intelligent electronic blackboard system, comprising a hardware system and a software system, and an electronic document of teaching materials; the hardware system comprises a computer host and an electronic display device with touch function; the software system comprises a blackboard module and a material display and annotation module; characterized in that: the software system further comprises a hidden and displayable teaching material prompt box and a control module thereof; the teaching material prompt box is used for presenting the content of the electronic document of teaching materials; the prompt box control module is used for opening, closing, and moving the position of the prompt box, and calling the electronic document of teaching materials and presenting the content of the next step of teaching materials in the prompt box; the teaching material prompt box comprises a "prompt content area" for displaying the prompted content, a moving slider in the area for marking a certain position of the graphic text of the material content, and a function control area outside the area, having a "close teaching material prompt box button", a "prompt content page turning button", and a "prompt box position moving button"; the prompt box control module comprises an electronic document of teaching materials reading sub-module and a prompt content control sub-module; the electronic document of teaching materials reading sub-module is used for reading the content of the electronic document of teaching materials and prompting in the "prompt content area" of the prompt box; the prompt content control sub-module is used for completing the functions of the moving slider in the "prompt content area", the "close teaching material prompt box button", the "prompt content page turning button", and the "prompt box position moving button", and opening the prompt box; the software system further comprises a word-by-word presentation position indicating icon on the electronic blackboard panel, used for indicating the starting position of the teaching materials to be presented word by word on the blackboard; a "teaching material word-by-word presentation leading prompt area" capable of presenting multiple text characters is bound at a distance on one side of the word-by-word presentation position indicating icon, used for low-light sequential multi-character presentation of the content of the teaching materials to be presented word by word; and further comprising an icon presentation module, an icon position moving module, a word-by-word presentation module, and a "teaching material word-by-word presentation leading prompt area" multi-character presentation module. ​ The word-by-word presentation position indicating icon calls the icon position moving module by the specified touch operation on any position of the blackboard, moves to the corresponding position of the touch operation, drags the icon to any direction of the right part to call the icon position moving module, and the icon can move to any direction of the right part; when the icon is dragged to move to a certain direction, the multi-word presentation module of the "teaching material word-by-word presentation leading prompt area" presents the content of the teaching material to be presented word by word in the "teaching material word-by-word presentation leading prompt area" in low brightness in sequence, and the presented character of the teaching material is started from the graphic position of the moving slider in the prompt content area of the teaching material prompt box in the blackboard system, and with the movement of the icon, the word-by-word presentation module is called to present the teaching material in normal brightness in sequence on the side of the icon in the opposite direction of the movement according to the low brightness presentation of the leading prompt area, and the median line of each word of the teaching material presented word by word is perpendicular to the moving direction of the icon; with the movement of the icon, the character of the teaching material presented in normal brightness is moved out from the left end of the "teaching material word-by-word presentation leading prompt area", and the subsequent character of the "teaching material word-by-word presentation leading prompt area" in the teaching material is moved into the "teaching material word-by-word presentation leading prompt area" from the right end of the "teaching material word-by-word presentation leading prompt area".

2. The smart electronic whiteboard system of claim 1, wherein, The "teaching material word-by-word presentation leading prompt area" capable of presenting multiple text characters is bound at a distance on one side of the icon, and the one side of the icon is the right side of the icon, including the upper right side, the lower right side and the right side.

3. The smart electronic whiteboard system of claim 1, wherein, The specified touch operation in the "icon position moving module called by the specified touch operation on any position of the blackboard" refers to the touch screen single click, double click, right click, single finger gesture, double finger gesture or multi-finger gesture operation.

4. The smart electronic whiteboard system of claim 1, wherein, The teaching material electronic document is a Word document, a PPT document, a PDF document, an image taken by a camera in real time or a general electronic document in different picture formats.

5. The method of using an intelligent electronic whiteboard system of claim 1, wherein, The method comprises the following steps: 1) store the "teaching material electronic document" file in the computer of the intelligent electronic blackboard system, or connect the "teaching material electronic document" carrier to the computer of the electronic blackboard system, or connect the camera to the computer of the electronic blackboard system, and copy a special icon file representing the camera to the desktop of the computer; 2) start the intelligent electronic blackboard system with the data prompt function, and call the teaching material electronic document reading submodule in the teaching material prompt box control module in the system during the starting process, select the "teaching material electronic document" and read the graphic content thereof, process the content into text content and image content available for computer variables, and put the content into the computer variables; 3) present the blackboard and the "word-by-word presentation position indicating icon" at the same time; 4) when the teacher needs to prompt the teaching material content, start the teaching material prompt box, and present the read graphic content in the "prompt content area" of the prompt box when the "teaching material prompt box" is started to be displayed on the blackboard interface. 5) In the presence of "teaching material prompt box", the teacher controls the function provided by "teaching material prompt box" through "teaching material prompt box control module" according to the needs; 6) When the teacher needs to use the content of the teaching material electronic document to present word by word on the blackboard at a certain position, like writing one word after another on the traditional ordinary blackboard to guide the students' thinking and make the students better accept the explanation content, the specific steps are as follows: Firstly, open the teaching material prompt box through step 4), and find the starting point of the material to be presented word by word through the function provided by the "teaching material prompt box" in step 5), and close the "teaching material prompt box"; Secondly, move the "word-by-word presentation position indicating icon" to the starting position of the material to be presented word by word on the blackboard, and drag the "word-by-word presentation position indicating icon" to the right to complete the word-by-word presentation of the teaching material.

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