A digital calligraphy teaching system

Abstract

The application provides a kind of digital calligraphy teaching system, comprising: teacher end, set in the first position of the preset in classroom;Multiple student ends, set in each second position of the preset in classroom;Server, respectively with teacher end and student end communication connection;Wherein, student end includes: first table body, four first table feet are arranged on the lower end face;First processor, set in first table body;First communication module, set in first table body, electrically connected with first processor, for communication connection with server;First writing auxiliary module, set on the upper end face of first table body;At least one first image acquisition module, set on the gantry above the front side of first table body and / or the gantry above the left and right sides of first table body, for shooting the upper surface image of first table body.The digital calligraphy teaching system of the application, when teaching multiple people, assists teachers to teach, improves teaching effect.

Description

Technical Field

[0001] This invention relates to the field of computer technology, and in particular to a digital calligraphy teaching system. Background Technology

[0002] Currently, calligraphy instruction typically requires teachers to guide students' practice, which is time-consuming; and when there are many students, teachers cannot provide individual attention to all of them. Therefore, there is an urgent need for a digital calligraphy teaching system to assist teachers in instruction when multiple students are involved, thereby improving teaching effectiveness. Summary of the Invention

[0003] One of the objectives of this invention is to provide a digital calligraphy teaching system that assists teachers in teaching and improves teaching effectiveness when multiple people are involved in the lesson.

[0004] This invention provides a digital calligraphy teaching system, comprising:

[0005] The teacher's end is set in the first preset position in the classroom;

[0006] Multiple student terminals are set up in various preset second locations within the classroom;

[0007] The server communicates with both the teacher's and student's ends separately.

[0008] The student side includes:

[0009] The first table body has four first table legs on its lower end;

[0010] The first processor is located inside the first desk.

[0011] The first communication module is located inside the first desktop and is electrically connected to the first processor for communicating with the server.

[0012] The first writing assistance module is located on the upper surface of the first table body;

[0013] At least one first image acquisition module is disposed on a gantry above the front side of the first table and / or on a gantry above the left and right sides of the first table, for capturing images of the upper surface of the first table.

[0014] Preferably, the digital calligraphy teaching system also includes:

[0015] At least one projection device is set in a preset third position inside the teacher's classroom to project onto the corresponding position on the blackboard inside the teacher's classroom, and is connected to the server for communication.

[0016] The teacher's side includes:

[0017] The second table has four second table legs on its lower end.

[0018] The second processor is located inside the second desktop.

[0019] The second communication module is located inside the second desktop and is electrically connected to the second processor for communicating with the server.

[0020] The second writing assistance module is located on the upper surface of the second table body;

[0021] At least one second image acquisition module is disposed on a gantry above the front side of the second table and / or on a gantry above the left and right sides of the second table, for capturing a second image of the writing area of ​​the second writing assistance module, and is electrically connected to the second processor;

[0022] The first human-computer interaction module is located on the upper surface of the second table and is electrically connected to the second processor.

[0023] Preferably, when the teacher's instruction to start a class is received through the first human-computer interaction module, the second processor acquires a second image through the second image acquisition module and sends the second image to the server;

[0024] The server generates explanatory video data based on the second image.

[0025] Preferably, the server generates explanatory video data based on the second image, including:

[0026] The writing area of ​​the second auxiliary writing mechanism in the second image corresponding to each second image acquisition module is identified respectively, and identification information is generated;

[0027] Based on the recognition information, the time point corresponding to the starting region of each character is determined as the first editing point, and the time point when a new complete character is recognized each time is determined as the second editing point.

[0028] Construct an editing timeline, map the first and second editing points to the editing timeline respectively, and determine the editing time intervals corresponding to each explanatory video data;

[0029] Based on the editing time interval, generate explanatory video data.

[0030] Preferably, the server generates explanatory video data based on the editing time interval, including:

[0031] Extract the second images captured by each second image acquisition module within the editing time interval to generate the first video data;

[0032] And / or,

[0033] Extract the second images captured by each second image acquisition module within the editing time interval;

[0034] The second images are grouped and associated based on the shooting time;

[0035] Extract the second image with the largest character region within each group to generate the second video data.

[0036] Preferably, the student end also includes:

[0037] The second human-computer interaction module is located on the upper surface of the first table and is electrically connected to the first processor.

[0038] The first processor performs the following operations:

[0039] When a student's video playback request is received, the video playback request is verified.

[0040] When the verification is successful, output the list of videos corresponding to the explanatory video data;

[0041] Receive the student's selection of the identifier corresponding to the explanation video data in the video list;

[0042] Output the explanatory video data corresponding to the selected identifier;

[0043] The video list is generated through the following steps:

[0044] Obtain the corresponding characters from each instructional video and generate a scaled-down image of the characters;

[0045] Generate annotations based on the source of video data;

[0046] Associate the zoomed-out images with the annotations to generate the corresponding identifiers for the explanatory video data in the video list;

[0047] The labels in the video list are arranged according to the shooting time and source of the explanatory video data.

[0048] Preferably, the first writing assistance module includes:

[0049] The lifting platform is located in the opening groove on the upper surface of the first table body;

[0050] The paper feeding mechanism is located inside the first table body, within the opening groove, and on one side of the lifting platform;

[0051] The drying mechanism is located on the upper surface of the first table body and on the side of the lifting platform away from the paper feeding mechanism;

[0052] The finished product recycling chamber is located on one side of the opening groove, and an opening window that can accommodate paper to pass through is provided between the finished product recycling chamber and the opening groove;

[0053] The cutting mechanism is located within the opening window.

[0054] Preferably, a first setting rod is hinged to one side of the lifting platform, and a limiting roller is rotatably set at the end of the first setting rod; a return spring is set on the side of the first setting rod near the lifting platform; the end of the return spring away from the first setting rod is sleeved in the fixing hole of a fixed body fixedly set on one side of the lifting platform.

[0055] A second setting rod is provided on the side of the lifting platform away from the first setting rod, a telescopic mechanism is provided at the end of the second setting rod, and a feeding mechanism is provided at the end of the telescopic mechanism.

[0056] Preferably, the cutting mechanism includes:

[0057] The knife holder is positioned parallel to the upper part of the lower inner surface of the opening window;

[0058] The cutting blade is fixedly mounted on the lower end face of the blade holder;

[0059] At least one telescopic mechanism is disposed above the tool holder and one end is fixedly connected to the tool holder;

[0060] Two reset mechanisms are symmetrically arranged at both ends of the lower end face of the tool holder. One end is connected to the tool holder, and the other end is fixedly connected to the lower end face of the opening window.

[0061] Prioritizes the following operations by the first processor:

[0062] When a paper change command is received through the second human-machine interaction module, the first image on the lifting platform is acquired through the first image acquisition module.

[0063] Based on the first image, the paper change command is verified;

[0064] When the verification is successful, the feeding distance of the feeding mechanism is determined based on the first image;

[0065] Control the lifting platform to descend at a uniform speed to a preset height;

[0066] After a preset time interval has elapsed since the lifting platform begins to descend, the feeding mechanism is controlled to operate based on the feeding distance.

[0067] Based on the feeding distance, a cutting control spool is constructed, and the pointers and cutting control points corresponding to the cutting mechanism are determined on the cutting control spool;

[0068] During the operation of the feeding mechanism, when the pointer on the cutting control spool reaches the cutting control point, the cutting mechanism is controlled to operate.

[0069] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0070] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0071] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0072] Figure 1 This is a schematic diagram of a digital calligraphy teaching system according to an embodiment of the present invention;

[0073] Figure 2 This is a schematic diagram of a student terminal in an embodiment of the present invention;

[0074] Figure 3 This is a schematic diagram of the first writing assistance module in an embodiment of the present invention;

[0075] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0076] Figure 5 for Figure 3 Enlarged view at point B in the middle;

[0077] Figure 6 This is a schematic diagram of the cutting mechanism in an embodiment of the present invention. Implementation

[0078] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0079] This invention provides a digital calligraphy teaching system, such as... Figure 1 and Figure 2 As shown, it includes:

[0080] Teacher terminal 1, set in the first preset position in the classroom;

[0081] Multiple student terminals are set up in various preset second locations within the classroom.

[0082] Server 3 is connected to both teacher terminal 1 and student terminal 2.

[0083] Student terminal 2 includes:

[0084] The first table body 10 has four first table legs on its lower end face;

[0085] The first processor 11 is located inside the first desktop 10;

[0086] The first communication module 12 is located inside the first desktop 10 and is electrically connected to the first processor 11 for communicating with the server 3.

[0087] The first writing assistance module 13 is located on the upper surface of the first table body 10;

[0088] At least one first image acquisition module 14 is disposed on a gantry above the front side of the first table body 10 and / or on a gantry above the left and right sides of the first table body 10, for capturing images of the upper surface of the first table body 10.

[0089] The working principle and beneficial effects of the above technical solution are as follows:

[0090] Within the classroom, there is one teacher's end and multiple student ends. The teacher's end is for the teacher's use, and the student ends are for the students' use. The teacher's end and student ends are interconnected through a server. A first image acquisition module is installed on the student ends to upload the students' handwriting and display it on the teacher's end via a first human-computer interaction module. This allows the teacher to remotely view and provide guidance without needing to move around the classroom, saving time and improving teaching efficiency. Furthermore, by comparing the first image with a standard image, it is confirmed that each student has practiced, eliminating the need for manual teacher checking and further saving time. The first position corresponds to the podium, and the second position corresponds to each student's seat.

[0091] In one embodiment, the digital calligraphy teaching system further includes:

[0092] At least one projection device is set in a preset third position within the classroom to project onto the corresponding position on the blackboard within the classroom, and is connected to the server for communication; for example, the third position is a position on the ceiling, and the projection device is installed in front of the podium by means of suspension; the projection screen can be a retractable screen, which is set above the blackboard.

[0093] The teacher's side includes:

[0094] The second table has four second table legs on its lower end.

[0095] The second processor is located inside the second desktop.

[0096] The second communication module is located inside the second desktop and is electrically connected to the second processor for communicating with the server.

[0097] The second writing assistance module is located on the upper surface of the second table body;

[0098] At least one second image acquisition module is disposed on a gantry above the front side of the second table and / or on a gantry above the left and right sides of the second table, for capturing a second image of the writing area of ​​the second writing assistance module, and is electrically connected to the second processor;

[0099] The first human-computer interaction module is located on the upper surface of the second table and is electrically connected to the second processor. The second writing assistance module has the same structure as the first writing assistance module, and will not be described in detail here.

[0100] The working principle and beneficial effects of the above technical solution are as follows:

[0101] The server uses a second image acquisition module to capture a second image of the teacher's writing area in the second writing assistance module. This second image is then projected onto a screen at the blackboard location using a projection device, allowing students to see the teacher's demonstration on their devices, further assisting the teacher's calligraphy instruction. The first user interaction module includes a touchscreen.

[0102] In one embodiment, when the teacher's instruction to start a class is received through the first human-computer interaction module, the second processor acquires a second image through the second image acquisition module and sends the second image to the server;

[0103] The server generates explanatory video data based on the second image.

[0104] The server generates explanatory video data based on the second image, including:

[0105] The writing area of ​​the second auxiliary writing mechanism in the second image corresponding to each second image acquisition module is identified, and identification information is generated; the identification information is the character written in the writing area.

[0106] Based on the recognition information, the time point corresponding to the starting region of each character is determined as the first editing point, and the time point when a new complete character is recognized each time is determined as the second editing point.

[0107] Construct an editing timeline, map the first and second editing points to the editing timeline respectively, and determine the editing time intervals corresponding to each explanatory video data;

[0108] Based on the editing time interval, generate explanatory video data.

[0109] The server generates explanatory video data based on the editing time interval, including:

[0110] Extract the second images captured by each second image acquisition module within the editing time interval to generate the first video data;

[0111] And / or,

[0112] Extract the second images captured by each second image acquisition module within the editing time interval;

[0113] Based on the shooting time, the second images are grouped and associated; that is, second images taken by different second imaging devices within the same time period are grouped together.

[0114] Extract the second image with the largest character region within each group to generate the second video data. The character region is the area corresponding to the character in the second image.

[0115] The working principle and beneficial effects of the above technical solution are as follows:

[0116] During instruction, the server generates video data based on the second image uploaded by the teacher and sends the video data back to the student's end. Students can view the video data and review it repeatedly, facilitating their understanding of the teacher's explanations. Specifically, when generating the second video data, the second image with the largest character area is extracted from multiple second image acquisition modules, ensuring a wide field of view and improving the viewing experience. Furthermore, each second image acquisition module generates its corresponding first video data, allowing users to select and replay content according to their individual needs, thus meeting the diverse requirements of different students. This embodiment's video data generation steps ensure that each instructional video corresponds to the writing of a new character, making it easier for students to quickly find and replay the instructional video data corresponding to a character.

[0117] In one embodiment, the student side also includes:

[0118] The second human-computer interaction module is located on the upper surface of the first table and is electrically connected to the first processor.

[0119] The first processor performs the following operations:

[0120] When a student's video playback request is received, the request is verified. The second image uploaded by the teacher is then identified to determine if the teacher is currently explaining the content. If no new characters are identified, the verification is successful.

[0121] When the verification is successful, output the list of videos corresponding to the explanatory video data;

[0122] Receive the student's selection of the identifier corresponding to the explanation video data in the video list;

[0123] Output the explanatory video data corresponding to the selected identifier;

[0124] The video list is generated through the following steps:

[0125] Obtain the corresponding characters from each instructional video and generate a scaled-down image of the characters;

[0126] Generate annotations based on the source of video data;

[0127] Associate the zoomed-out images with the annotations to generate the corresponding identifiers for the explanatory video data in the video list;

[0128] The identifiers in the video list are arranged according to the shooting time and source of the explanatory video data. Preferably, the identifiers corresponding to the second video data are displayed in a prominent color, such as red.

[0129] The working principle and beneficial effects of the above technical solution are as follows:

[0130] When creating the video list, reduced-size character images and the source of the video data are labeled to facilitate students' selection of video data. In addition, the second video data is highlighted so that students can quickly select the second video data from multiple data.

[0131] In one embodiment, such as Figures 3 to 6 As shown, the first writing assistance module includes:

[0132] The lifting platform 15 is located in the opening groove 16 on the upper surface of the first table body 10;

[0133] The paper feeding mechanism 17 is disposed inside the first table body 10, located in the opening groove 16 and on one side of the lifting platform 15; the paper feeding mechanism 17 includes: a feeding roller; and a paper roll sleeved around the outer periphery of the feeding roller.

[0134] The drying mechanism 26 is located on the upper surface of the first table body 10 and on the side of the lifting platform 15 away from the paper feeding mechanism 17.

[0135] The finished product recycling chamber 18 is located on one side of the opening groove 16. An opening window 30 that can accommodate paper to pass through is provided between the finished product recycling chamber 18 and the opening groove 16. A material retrieval port is provided on the side of the first table body 10, and a sliding door is provided on the material retrieval port.

[0136] The cutting mechanism 19 is located within the opening window 30.

[0137] A first setting rod 22 is hinged to one side of the lifting platform 15, and a limiting roller 21 is rotatably mounted at the end of the first setting rod 22. A return spring 23 is provided on the side of the first setting rod 22 near the lifting platform 15. The end of the return spring 23 away from the first setting rod 22 is sleeved in a fixing hole of a fixed body fixed on one side of the lifting platform. A protrusion is provided on the side of the opening groove 16 near the limiting roller 21, and a groove adapted to the limiting roller 21 is provided at the end of the protrusion near the limiting roller 21. The paper is restrained by the groove and the limiting roller 21. The return spring 23 can be a tension spring.

[0138] A second setting rod 24 is provided on the side of the lifting platform 15 away from the first setting rod 22. A first telescopic mechanism 25 is provided at the end of the second setting rod 24, and a feeding mechanism 20 is provided at the end of the first telescopic mechanism 25. The feeding mechanism 20 includes symmetrically arranged feeding rollers; the paper passes between the two feeding rollers, and the feeding rollers are driven by a motor.

[0139] The cutting mechanism 19 includes:

[0140] The knife holder 31 is positioned parallel to the upper part of the lower inner surface of the opening window 30;

[0141] The cutting blade 33 is fixedly mounted on the lower end face of the blade holder 31;

[0142] At least one second telescopic mechanism 32 is disposed above the knife holder 31 and one end is fixedly connected to the knife holder 31; the second telescopic mechanism 32 extends to push the knife holder 31 to move towards the lower end face inside the opening window 30, and cuts the paper by the cutting knife 33; a knife groove that cooperates with the cutting knife 33 is provided on the lower end face inside the opening window 30.

[0143] Two reset mechanisms 34 are symmetrically arranged at both ends of the lower end face of the tool holder 31. One end is connected to the tool holder 31, and the other end is fixedly connected to the lower end face of the opening window 30. Each reset mechanism 34 includes a reset spring.

[0144] The first processor performs the following operations:

[0145] When a paper change command is received through the second human-machine interaction module, the first image on the lifting platform is acquired through the first image acquisition module.

[0146] Based on the first image, the paper replacement instruction is verified. The verification criteria include: whether characters are written in a preset area near the feeding mechanism in the first image, whether the area with written characters occupies a preset area greater than a preset percentage, and / or whether the area occupied by characters on the paper is greater than a preset area threshold. That is, when characters are written in a preset area near the feeding mechanism in the first image, and the area with written characters occupies a preset area greater than a preset percentage, and / or the area occupied by characters on the paper is greater than a preset area threshold, the verification is successful. Verification ensures the effective use of paper.

[0147] When the verification is successful, the feeding distance of the feeding mechanism is determined based on the first image; specifically: first, the width of the blank area on the side away from the feeding mechanism corresponding to the area of ​​paper in the first image is determined, and the feeding distance is obtained by subtracting the width of the blank area from the width of the lifting platform.

[0148] Control the lifting platform to descend at a constant speed to a preset height; so that the limiting rollers leave the inner wall of the opening groove;

[0149] After a preset time interval after the lifting platform begins to descend, the feeding mechanism is controlled to move based on the feeding distance; the feeding mechanism moves at the instant the limiting roller just leaves the inner wall of the opening groove; this is also the moment the reset spring resets.

[0150] Based on the feeding distance, a cutting control spool is constructed, and the pointer and cutting control point corresponding to the cutting mechanism are determined on the cutting control spool; the line segments corresponding to the feeding distance are connected in sequence to form the cutting control spool; the connection position of each line segment is the cutting control point; the position indicated by the pointer is the mapping point of the position of the cutting mechanism on the paper on the cutting control spool;

[0151] During the operation of the feeding mechanism, when the pointer on the cutting control spool reaches the cutting control point, the cutting mechanism is activated. Simultaneously with the operation of the feeding mechanism, the pointer on the cutting control spool slides accordingly, and cutting is performed when it reaches the cutting control point.

[0152] The working principle and beneficial effects of the above technical solution are as follows:

[0153] Paper is fed by a paper feeding mechanism, passes through limiting rollers, and lies flat on the surface of a lifting platform. Students or teachers write on the paper on the lifting platform. After writing, especially for calligraphy, the paper passes through a drying mechanism, then is fed to a cutting mechanism by a feeding mechanism. The cutting mechanism cuts the paper into finished products. Paper replacement generally occurs after writing on the paper on the lifting platform is completed. By controlling the lowering of the lifting mechanism, it is prevented that the ink on the paper is not dry and comes into contact with the upper end of the inlet of the drying mechanism during transport. A telescopic mechanism is set below the feeding mechanism to ensure that the paper exiting the feeding mechanism is always parallel to the opening window, improving the accuracy of cutting control. The drying mechanism includes a blower and / or a heater. A second setting rod passes through the opening of the drying mechanism.

[0154] Furthermore, to ensure the paper remains parallel during the descent of the lifting platform, two limiting rollers, a first setting rod, and a return spring are symmetrically positioned on both sides of the lifting platform, thereby preventing ink slippage.

[0155] In addition, a paper change command can be entered by clicking the corresponding virtual button for the paper change command set on the second human-computer interaction module; when the corresponding virtual button for the paper change command set on the second human-computer interaction module is pressed and held (pressed for more than 3 seconds), a forced paper change command is entered, and the feeding mechanism conveys a preset length of paper forward; the forced paper change command can be used to adapt to the paper change needs between classes.

[0156] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A digital calligraphy teaching system, characterized in that, include: The teacher's end is set in the first preset position in the classroom; Multiple student terminals are set up in various preset second locations within the classroom; The server is connected to both the teacher's and the student's terminals for communication. The student terminal includes: The first table body has four first table legs on its lower end; The first processor is located within the first desktop. A first communication module is disposed within the first desktop and electrically connected to the first processor, used for communication with the server. The first writing assistance module is located on the upper surface of the first table body; At least one first image acquisition module is installed on a gantry above the front side of the first table and / or on a gantry above the left and right sides of the first table, for capturing images of the upper surface of the first table; The first writing assistance module includes: The lifting platform is installed in the opening groove on the upper surface of the first table body; The paper feeding mechanism is located inside the first table body, within the opening groove, and on one side of the lifting platform; The drying mechanism is located on the upper surface of the first table body and on the side of the lifting platform away from the paper feeding mechanism; A finished product recycling chamber is provided on one side of the opening groove, and an opening window that can accommodate paper is provided between the finished product recycling chamber and the opening groove; A cutting mechanism is provided within the opening window; The first processor performs the following operations: When a paper change command is received through the second human-machine interaction module, the first image on the lifting platform is acquired through the first image acquisition module. Based on the first image, the paper change command is verified; When the verification is successful, the feeding distance of the feeding mechanism is determined based on the first image; The lifting platform is controlled to descend at a constant speed to a preset height; After a preset time interval following the start of the descent of the lifting platform, the feeding mechanism is controlled to operate based on the feeding distance. Based on the feeding distance, a cutting control spool is constructed, and the pointers and cutting control points corresponding to the cutting mechanism are determined on the cutting control spool; During the operation of the feeding mechanism, when the pointer on the cutting control spool reaches the cutting control point, the cutting mechanism is controlled to operate.

2. The digital calligraphy teaching system as described in claim 1, characterized in that, Also includes: At least one projection device is set in a preset third position inside the teacher's classroom for projecting onto the corresponding position on the blackboard inside the teacher's classroom, and is communicatively connected to the server. The teacher's end includes: The second table has four second table legs on its lower end. The second processor is located within the second desktop. The second communication module is located inside the second desktop and is electrically connected to the second processor for communicating with the server. The second writing assistance module is located on the upper surface of the second table body; At least one second image acquisition module is disposed on a gantry above the front side of the second table and / or on a gantry above the left and right sides of the second table, for capturing a second image of the writing area of ​​the second writing assistance module, and is electrically connected to the second processor; The first human-computer interaction module is located on the upper surface of the second table and is electrically connected to the second processor.

3. The digital calligraphy teaching system as described in claim 2, characterized in that, When the first human-computer interaction module receives the teacher's instruction to start a class, the second processor acquires the second image through the second image acquisition module and sends the second image to the server; The server generates explanatory video data based on the second image.

4. The digital calligraphy teaching system as described in claim 3, characterized in that, The server generates explanatory video data based on the second image, including: The writing area of ​​the second auxiliary writing mechanism in the second image corresponding to each of the second image acquisition modules is identified respectively, and identification information is generated; Based on the recognition information, the time point corresponding to the starting region of each character is determined as the first editing point, and the time point at which a new complete character is recognized each time is determined as the second editing point. Construct an editing timeline, map the first and second editing points to the editing timeline respectively, and determine the editing time intervals corresponding to each explanatory video data; The explanatory video data is generated based on the aforementioned editing time interval.

5. The digital calligraphy teaching system as described in claim 4, wherein the server generates the explanatory video data based on the edited time interval, including: Extract the second images captured by each of the second image acquisition modules within the editing time interval to generate first video data; And / or, Extract the second images captured by each of the second image acquisition modules within the editing time interval; The second images are grouped and associated based on the shooting time; Extract the second image with the largest character region within each group to generate the second video data.

6. The digital calligraphy teaching system as described in claim 1, characterized in that, The student terminal also includes: The second human-computer interaction module is located on the upper surface of the first table and is electrically connected to the first processor. The first processor performs the following operations: When a student's video playback request is received, the video playback request is verified. When the verification is successful, output the list of videos corresponding to the explanatory video data; Receive the student's selection of the identifier corresponding to the explanatory video data in the video list; Output the explanatory video data corresponding to the selected identifier; The video list is generated through the following steps: Obtain a scaled-down image of the characters corresponding to each explanatory video data; Generate annotations based on the source of video data; Associate the zoomed-out image with the annotation to generate an identifier in the video list corresponding to the explanatory video data; The identifiers in the video list are arranged according to the shooting time and source of the explanatory video data.

7. The digital calligraphy teaching system as described in claim 1, characterized in that, A first setting rod is hinged to one side of the lifting platform, and a limiting roller is rotatably provided at the end of the first setting rod; a return spring is provided on the side of the first setting rod near the lifting platform; the end of the return spring away from the first setting rod is sleeved in a fixing hole of a fixed body fixedly provided on one side of the lifting platform. A second setting rod is provided on the side of the lifting platform away from the first setting rod, a first telescopic mechanism is provided at the end of the second setting rod, and a feeding mechanism is provided at the end of the first telescopic mechanism.

8. The digital calligraphy teaching system as described in claim 1, characterized in that, The cutting mechanism includes: The knife holder is positioned parallel to and above the lower inner surface of the opening window. The cutting blade is fixedly mounted on the lower end face of the blade holder; At least one second telescopic mechanism is disposed above the tool holder and one end is fixedly connected to the tool holder; Two reset mechanisms are symmetrically arranged at both ends of the lower end face of the tool holder, one end of which is connected to the tool holder and the other end is fixedly connected to the lower end face of the opening window.

Images