Motion-sensing interaction system for smart study desks

Abstract

This invention discloses a motion-sensing interaction system for a smart learning desk, including a height-adjustable desk with a notch in the tabletop and a flip-up tabletop within the notch. The front edge of the flip-up tabletop is hinged to the front edge of the height-adjustable desk. By flipping the rear edge of the flip-up tabletop forward, the tabletop tilts or flips forward to expose the notch. A writing board is installed at the notch, located below the flip-up tabletop. A first electric scroll and a second electric scroll are respectively located on the left and right sides of the writing board, with the handwritten scroll storage area of ​​the first electric scroll and the handwritten scroll collection area of ​​the second electric scroll facing each other, as well as the white paper roll storage area of ​​the first electric scroll and the white paper roll collection area of ​​the second electric scroll facing each other. This motion-sensing interaction system enables various human-computer interactions during calligraphy practice, including voice interaction, tactile interaction, and gesture interaction.

Description

Technical Field

[0001] This invention belongs to the field of motion-sensing interactive learning systems, and specifically relates to a motion-sensing interactive system for a smart learning desk. Background Technology

[0002] Smart study desks are primarily used during student years. Their existence is essentially a natural consequence of addressing the pain points of traditional study desks (fixed design, limited functionality), meeting health needs (postural and visual protection), leveraging technological advancements (sensors, AI, IoT), and catering to market upgrades (personalization, intelligence). They are not merely "adjustable desks," but also "thinking learning partners," creating a scientific, healthy, and efficient learning environment for students and providing a new platform for educational informatization.

[0003] Existing smart study desks primarily focus on features like height adjustment, voice AI, and lighting control, meeting the daily learning needs of penmanship (such as fountain pens and pencils). However, calligraphy, as a traditional art form, demands higher standards in terms of tools, writing habits, and posture than penmanship. While current smart study desk designs address the challenges of penmanship, they cannot meet the specific needs of calligraphy. These specific needs include the common practice of copying, especially tracing.

[0004] Copying calligraphy is the most fundamental and core training method in Chinese calligraphy learning. Simply put, it's a process of "first tracing, then imitating," aiming to master the strokes, structure, and spirit of characters by accurately imitating classic calligraphic models. Tracing involves placing a semi-transparent sheet of paper over the model and following the outlines of the characters. Imitating, on the other hand, is a more refined approach, involving carefully observing the model and then copying it onto a separate sheet of paper. Furthermore, Xuan paper is ideal for brush writing, especially long, horizontal scrolls (i.e., handwritten scrolls), which are suitable for copying long articles or poetry collections and better showcase the charm of classical poetry.

[0005] Because handwritten scrolls are often quite long, especially long scrolls, their total length can exceed the horizontal length of the tabletop. In ancient times, when writing, the left hand held the scroll (unrolled) and the right hand held the brush, thus forming the traditional vertical, right-to-left writing habit of calligraphy. Existing smart learning desks cannot solve the problem of unrolling scrolls. Since ink takes time to dry, once an unrolled scroll is full, it requires a waiting period before it can be rolled up, making continuous writing impossible. There is currently no effective solution to this problem, and existing smart learning desks cannot resolve it either.

[0006] After writing calligraphy, the paper needs to dry completely before it can be rolled up. Existing smart learning desks cannot solve the problem of "rubbing while writing" (an inherent defect of traditional writing, which even experienced calligraphers need to avoid as much as possible by adjusting their posture (such as suspending their wrists).

[0007] In addition, writing exquisite ancient poems on handwritten scrolls is not only about the font, but also about the neat arrangement of the font. However, blank handwritten scrolls do not have printed writing grids, and existing smart learning desks cannot help writers arrange the font or guide the position of the pen.

[0008] Therefore, although existing smart learning desks are constantly improving towards intelligence, they have almost no auxiliary functions for practicing calligraphy and do not have the function of practicing hand-copying scrolls. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a motion-sensing interaction system for an intelligent learning desk, including a height-adjustable desk with a notch in the desktop and a flip-up tabletop within the notch. The front edge of the flip-up tabletop is hinged to the front edge of the height-adjustable desk. By flipping the rear edge of the flip-up tabletop forward, the tabletop tilts or flips forward to expose the notch. A writing board is installed at the notch, located below the flip-up tabletop. A first electric reel and a second electric reel are respectively located on the left and right sides of the writing board, with the hand-written scroll storage area of ​​the first electric reel and the hand-written scroll collection area of ​​the second electric reel directly opposite each other. The white paper roll storage area of ​​the first electric reel is directly opposite the white paper roll receiving area of ​​the second electric reel; it includes two sets of clamping mechanisms installed below the writing board, which are adjacent to the front and rear of the white paper roll receiving area. Each set of clamping mechanisms corresponds to a third reel, which is wound with an elastically deformable protective strip. The front of the protective strip is provided with isolation posts evenly distributed along its length. The clamping mechanism delivers the end of the corresponding protective strip to the white paper roll receiving area, and the protective strip is synchronously clamped into the rolled white paper roll as the second electric reel rotates, thereby allowing the isolation posts to separate any two adjacent layers of the white paper roll to protect the writing.

[0010] A preferred embodiment of the motion-sensing interaction system for the intelligent study desk in this invention is as follows: the handwritten scroll storage area of ​​the first electric scroll and the handwritten scroll collection area of ​​the second electric scroll are both located near the rear of the writing board, and both the handwritten scroll collection area and the white paper roll collection area are provided with paper clamping seams. The handwritten scroll storage area and the handwritten scroll collection area are adjacent to the front of the white paper roll, which conforms to the writing habit that the handwritten scroll should be placed to the left or above the white paper roll.

[0011] A preferred embodiment of the motion-sensing interaction system for a smart learning desk in this invention is as follows: Each clamping mechanism includes a support, an upper friction belt, and a lower friction belt. The support is connected to the bottom of the writing board. The upper and lower friction belts are rotatably connected to the upper and lower parts of the support via pulleys, respectively, with multiple rollers on the inner side of the upper friction belt directly opposite to multiple rollers on the inner side of the lower friction belt. The support is equipped with a motor for driving the pulleys to rotate. The upper and lower friction belts rotate synchronously in opposite directions, thereby pushing the protective belt between the upper and lower friction belts to move. Further, all the isolation posts of each protective belt are located in the middle of the protective belt, and friction zones that contact the upper and lower friction belts are formed in the empty spaces near both sides of the protective belt. The friction zones of each protective belt are clamped between the corresponding upper and lower friction belts. Two motors drive the upper and lower friction belts to rotate synchronously in opposite directions, using friction to move the protective belt towards the white paper roll storage area, and the protective belt is released from the third roll. Conversely, when the motor rotates synchronously in the opposite direction, the protective tape is wound back onto the third drum, allowing the protective tape to be reused without wear and tear.

[0012] A preferred embodiment of the motion-sensing interaction system for an intelligent learning desk in this invention is as follows: a pressure-sensing plate is provided between the writing board and the flip-up tabletop, with the pressure-sensing plate located near the right side of the writing board, and a pressure-sensing matrix positioned on top of the pressure-sensing plate. When writing from top to bottom with the right hand, the right hand rests on the pressure-sensing plate. The pressure-sensing plate serves two purposes: firstly, it supports the writing hand, separating the hand from the written text, i.e., the hand suspends itself on the rolled-up paper, solving the problem of smudging while writing; secondly, as the right hand moves, the pressure-sensing matrix collects pressure changes in real time, sending the real-time pressure value to the motion-sensing interaction system. The system accurately determines the writing position based on these pressure changes, assisting in writing practice.

[0013] The preferred embodiment of the motion-sensing interaction system for the intelligent learning desk in this invention is as follows: The height-adjustable desk has a back panel located at the front of the desktop. The upper and middle sections of the back panel are respectively equipped with an upper shelf and a lower shelf. The upper shelf is equipped with a lamp, and the lower shelf is inlaid with an integrated bookcase. Above the lower shelf are an intelligent voice interaction speaker, a laser projection ruler, and a camera assembly, both aligned with the writing board. The laser projection ruler projects multiple rows of grid-like characters onto a roll of white paper unfolded on the writing board, aiding in practice of character layout, particularly suitable for beginners with limited experience. The camera assembly captures real-time images of the hand during writing. After image processing, the accurate position of the hand during writing is identified, and the motion-sensing interaction system calculates writing speed, writing position, and other information, providing real-time data for the writing process of the intelligent learning desk's motion-sensing interaction system. The intelligent voice interaction speaker has a built-in speaker and microphone to acquire the writer's voice commands and issue voice prompts, enabling voice interaction.

[0014] The beneficial effects of the motion-sensing interaction system for smart study desks in this invention are as follows: 1. When the tabletop is flipped flat, it's used for regular pen writing. Flipping the tabletop upwards to support it allows for tilting books for reading. Flipping it further to the front reveals the writing board for practicing calligraphy. This multi-functional tabletop meets various learning needs.

[0015] 2. The first and second electric scrolls can automatically unfold and rewind handwritten scrolls and white paper scrolls, replacing the manual unfolding and rewinding actions of writing. They are suitable for handwritten scrolls that are longer than the total length of the tabletop, and are especially suitable for long scrolls, serving as an auxiliary writing aid.

[0016] 3. After the freshly written white paper roll is rolled up in the first layer of the white paper roll storage area, two sets of clamping mechanisms deliver two protective strips to the top and bottom of the white paper roll respectively. When the white paper roll begins to roll up to the second layer, the two protective strips are clamped between the first and second layers. The isolation posts on the protective strips increase the distance between the first and second layers of white paper rolls, preventing the undried writing from coming into contact with the back of the white paper roll. This solves the problems of not being able to roll up the paper roll because the writing is not dry, not being able to write continuously, and "writing while rubbing". Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the motion-sensing interaction system for the smart study desk in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the motion-sensing interaction system for the smart study desk in this invention. Figure 2 ; Figure 3 for Figure 2 A diagram showing the hidden flipped tabletop; Figure 4 This is a schematic diagram of the motion-sensing interaction system for the smart study desk in this invention. Figure 3 ; Figure 5 This is a schematic diagram of the structure of the clamping mechanism at the notch in this invention; Figure 6 This is a schematic diagram of the clamping mechanism in this invention; Figure 7 for Figure 6 A bottom view; Figure 8 for Figure 6 A three-dimensional image.

[0019] Reference numerals: 1. Desktop; 2. Flip-top tabletop; 3. Height-adjustable table legs; 4. Control panel; 5. Back panel; 6. Lighting fixture; 7. Smart voice-interactive speaker; 8. Laser projection ruler; 9. Camera assembly; 10. Notch; 11. Writing board; 12. First electric roll; 13. Second electric roll; 14. Hand-written roll storage area; 15. Hand-written roll storage area; 16. White paper roll storage area; 17. White paper roll storage area; 18. Paper clamping seam; 19. Guide roller; 20. Feeding mechanism; 21. Third roll; 22. Protective belt; 23. Isolation column; 24. Bracket; 25. Upper friction belt; 26. Lower friction belt; 27. Roller; 28. Pressure sensing plate; 29. ​​Dryer; 30. Hand-written roll; 31. White paper roll. Detailed Implementation

[0020] In view of the shortcomings of the prior art, the inventors of this invention, through long-term research and extensive practice, have proposed the technical solution of this invention. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples in the embodiments of this application.

[0021] like Figure 1 As shown, this embodiment provides a motion-sensing interaction system for a smart learning desk, including a height-adjustable desk and a high-performance embedded SoC (System-on-a-Chip). The smart chip integrates a powerful CPU, NPU, GPU, etc., to achieve motion-sensing interactive learning. Its working principle is: user voice – NPU within the SoC recognizes the voice – the SoC's CPU understands the instruction and makes a decision – the CPU sends the instruction to an external device, and the external device performs the corresponding function. The smart chip is the core of the motion-sensing interaction system, responsible for signal processing, data analysis, instruction sending and receiving, etc.

[0022] like Figure 2 and Figure 3 As shown, the desktop 1 of the height-adjustable desk has a notch 10, and the notch 10 has a flip-top tabletop 2. The front edge of the flip-top tabletop 2 is hinged to the front edge of the height-adjustable desk. By flipping the rear edge of the flip-top tabletop 2 forward, the flip-top tabletop 2 tilts forward to support books placed at an angle. Alternatively, the flip-top tabletop 2 can be flipped to the front of the desktop 1, i.e., the flip-top tabletop 2 is vertically downward, maintaining an angle of more than 90° with the desktop 1, thereby exposing the notch 10. This embodiment also includes a writing board 11 installed at the notch 10. The writing board 11 is located below the flip-top tabletop 2. After flipping the flip-top tabletop 2 to the front of the desktop 1, the writing board 11 can be fully exposed.

[0023] The height-adjustable desk is supported by two adjustable legs 3, which allow for height adjustment. A control panel 4 is located at the rear right corner of the desktop 1. The control panel 4 includes a 220V power outlet, a USB port, a Type-C port, a height adjustment button, a main power switch, and other function buttons. The USB port, Type-C port, height adjustment button, and main power switch on the control panel are all electrically connected to the aforementioned smart chip, enabling data exchange and button-based command transmission. The 220V power outlet is directly connected to the desk's AC power cord, providing a separate AC power outlet.

[0024] like Figure 1 As shown, the height-adjustable desk has a back panel 5 located in front of the desktop 1. The upper and middle parts of the back panel 5 are respectively equipped with an upper shelf and a lower shelf. The upper shelf is equipped with a lamp 6, and the lower shelf is inlaid with an integrated bookcase. Above the lower shelf are a smart voice interaction speaker 7, a laser projection ruler 8, and a camera component 9, both aligned with the writing board 11. The smart voice interaction speaker 7, laser projection ruler 8, and camera component 9 are electrically connected to a smart chip. The control panel 4 has a projection button. Pressing the projection button causes the smart chip to project multiple rows of grid-like characters onto a roll of white paper 31 unfolded on the writing board 11 using the laser projection ruler 8. Following the grid helps practice character layout, making it particularly suitable for beginners with limited experience. The camera component 9 captures real-time images of the hand during writing. The image data is sent to the smart chip, which processes the data and identifies the precise position of the hand during writing. The smart chip calculates writing speed, writing position, and other information, providing real-time data for the smart learning desk's motion-sensing interaction system. The Smart Voice Interaction Speaker 7 has a built-in speaker and microphone to receive the writer's voice commands and issue voice prompts, enabling voice interaction.

[0025] like Figure 3 and Figure 4As shown, a first electric reel 12 and a second electric reel 13 are respectively provided on the left and right sides of the writing board 11. Both the first electric reel 12 and the second electric reel 13 are rotatably connected to the inner side of the support frame under the desktop 1. The first electric reel 12 and the second electric reel 13 are each equipped with a matching motor, which can rotate in both directions to achieve corresponding forward and reverse rotation of the first electric reel 12 and the second electric reel 13. The hand-written roll storage area 14 of the first electric reel 12 is directly opposite the hand-written roll storage area 15 of the second electric reel 13, and the white paper roll storage area 16 of the first electric reel 12 is directly opposite the white paper roll storage area 17 of the second electric reel 13. The hand-written roll storage area 14 of the first electric reel 12 and the hand-written roll storage area 15 of the second electric reel 13 are both close to the rear of the writing board 11, and both the hand-written roll storage area 15 and the white paper roll storage area 17 are provided with paper clamping seams 18. The handwritten scroll storage area 14 and the handwritten scroll collection area 15 are located adjacent to the front of the white paper roll 31, conforming to the writing habit that the handwritten scroll 30 should be placed to the left or above the white paper roll 31. Before practicing calligraphy, the handwritten scroll 30 is rolled in the handwritten scroll storage area 14, and the white paper roll 31 is rolled in the white paper roll storage area 16. Then, the end of the handwritten scroll 30 passes over the writing board 11 and is inserted into the paper clamping seam 18 of the handwritten scroll collection area 15. Similarly, the end of the white paper roll 31 passes over the writing board 11 and is inserted into the paper clamping seam 18 of the white paper roll collection area 17. To avoid friction between the handwritten scroll 30 and the white paper roll 31 and the left and right sides of the writing board 11, guide rollers 19 are provided on the left and right sides of the writing board 11, respectively, and the first electric roller 12 and the second electric roller 13 are both lower than the corresponding guide rollers 19. The hand-copied roll 30 and the white paper roll 31 are subjected to rolling friction with the guide roller 19, which protects the hand-copied roll 30 and the white paper roll 31.

[0026] like Figures 4 to 8As shown, to solve the problem of continuous writing due to ink not being completely dry, this embodiment installs two sets of clamping mechanisms 20 below the writing board 11. The two sets of clamping mechanisms 20 are adjacent to the front and rear of the white paper roll storage area 17, and each set of clamping mechanisms 20 corresponds to a third roll 21. To more clearly illustrate the main structure of the clamping mechanism 20, some connecting structures of the clamping mechanism 20 are omitted in the figure, such as the central pivot of the third roll 21. In fact, the two ends of the central pivot are connected to the support frame under the tabletop 1, but the connecting structure of the central pivot is not shown in the figure. The third roll 21 is wound with a protective strip 22 that can be elastically deformed. The front of the protective strip 22 is provided with isolation posts 23 that are evenly distributed along the length direction. The clamping mechanism 20 delivers the end of the corresponding protective strip 22 to the white paper roll storage area 17, and the protective strip 22 is synchronously clamped in the rolled white paper roll 31 as the second electric roll 13 rotates, thereby allowing the isolation posts 23 to separate any two adjacent layers of the white paper roll 31 to protect the ink. Specifically, the isolation column 23 is made of high-density foam material, which has high friction and facilitates the synchronous winding of the protective belt 22 and the white paper roll 31. It also has a certain supporting force, which is sufficient to separate the two layers of paper rolls. Each clamping mechanism 20 includes a bracket 24, an upper friction belt 25, and a lower friction belt 26. The bracket 24 is connected to the bottom of the writing board 11. The upper friction belt 25 and the lower friction belt 26 are respectively rotatably connected to the upper and lower parts of the bracket 24 through pulleys. The multiple rollers 27 on the inner side of the upper friction belt 25 are directly opposite to the multiple rollers 27 on the inner side of the lower friction belt 26. The bracket 24 is equipped with a motor for driving the pulleys to rotate. The upper friction belt 25 and the lower friction belt 26 rotate synchronously in opposite directions, thereby pushing the protective belt 22 between the upper friction belt 25 and the lower friction belt 26 to move. Furthermore, all the isolation posts 23 of each protective strip 22 are located in the middle of the protective strip 22, and friction zones are formed in the empty portions near both sides of the protective strip 22, contacting the upper friction strip 25 and the lower friction strip 26. The friction zones of each protective strip 22 are clamped between the corresponding upper friction strip 25 and lower friction strip 26. The two motors drive the upper friction strip 25 and lower friction strip 26 to rotate synchronously in reverse, using friction to move the protective strip 22 towards the white paper roll storage area 17, and the protective strip 22 is released from the third roll 21. Conversely, the two motors rotate synchronously in opposite directions, and the protective strip 22 is wound back onto the third roll 21.

[0027] like Figure 3 and Figure 5As shown, to prevent smudging of undried writing, a pressure-sensing plate 28 is provided between the writing board 11 and the flip table 2. The pressure-sensing plate 28 is located near the right side of the writing board 11, and a pressure-sensing matrix is ​​located on top of the pressure-sensing plate 28. When writing from top to bottom with the right hand, the right hand rests on the pressure-sensing plate 28, which is slightly higher than the white paper roll 31. After writing each column of characters, the white paper roll 31 moves to the right, passing under the pressure-sensing plate 28, without the right palm contacting the writing. In addition, the movement of the right hand causes real-time pressure changes in the pressure-sensing matrix. The real-time pressure changes are sent to the smart chip. Each time the right hand moves away from the bottom cell of each column, the image recognition of the camera component 9 verifies the hand position, thereby automatically matching the movement speed of the hand-copying roll 30 and the white paper roll 31 with the writing speed. In addition, to speed up the drying of the writing, a dryer 29 is provided at the notch 10, located on the right side of the right side of the writing board 11. The air dryer 29 blows air towards the right side of the writing board 11, which significantly accelerates the evaporation of ink and further reduces the risk of ink being smudged.

[0028] This embodiment also provides a motion-sensing interaction method for practicing calligraphy, based on the aforementioned motion-sensing interaction system for a smart learning desk, and the method is as follows: S1. Send a height adjustment command to the smart chip via the height adjustment button. The smart chip uses the drive module to make the height adjustment table legs 3 move the tabletop 1 to a suitable position. Then manually open the flip table 2 to fully expose the writing board 11.

[0029] S2. Wrap the handwritten scroll 30 to be copied around the handwritten scroll storage area 14 of the first electric scroll 12, and insert the end of the handwritten scroll 30 into the paper clamping seam 18 of the handwritten scroll storage area 15 of the second electric scroll 13. Wrap the white paper scroll 31 around the white paper scroll storage area 16 of the first electric scroll 12, and insert the end of the white paper scroll 31 into the paper clamping seam 18 of the white paper scroll storage area 17 of the second electric scroll 13.

[0030] S3. Issue the voice command "Practice calligraphy" or press the "Practice calligraphy" button on the control panel 4. After receiving the corresponding command through the intelligent voice interaction speaker 7, the intelligent chip projects multiple rows of grid-shaped characters onto the white paper roll 31 using the laser projection ruler 8. The number of rows of grid-shaped characters is adjusted according to the vertical width of the actual white paper roll 31. The intelligent chip acquires image information of the location of the pressure sensing plate 28 through the camera component 9. S4. The writer holds the brush and places their right hand on the pressure-sensing plate 28, writing sequentially in the first column of laser-etched characters on the right, following the traditional vertical writing direction. During the writing process, the intelligent chip identifies the position of the right hand from the image data captured by the camera component 9, and simultaneously infers the position of the right hand from the pressure changes of the pressure-sensing plate 28. That is, the image recognition result and the pressure detection result are combined to comprehensively determine the accurate position of the right hand, and the dual recognition method reduces the risk of recognition errors.

[0031] S5. When the right hand writes to the last laser character in the current column, if the pressure of the pressure sensor 28 returns to zero and the right hand position in the image data shows a significant displacement, the intelligent chip determines that the writer has completed writing the current column based on these two obvious data changes. If two obvious data changes occur even before writing to the last laser character, the intelligent chip determines that writing should be paused or the ink should be dipped.

[0032] S6. When the smart chip determines that the current column has been written, the smart chip issues a "roll-up" prompt through the smart voice interaction speaker 7. After 3 seconds, the first electric roll 12 and the second electric roll 13 rotate synchronously in the forward direction. The handwritten roll 30 and the white paper roll 31 move to the right by one character space and then stop. The user can continue writing the next column, thus eliminating the need for manual roll-up operation.

[0033] S7. If automatic unwinding is not required in S6, within 3 seconds of the intelligent voice interaction speaker 7 issuing the "unwind" prompt, the writer issues a voice command such as "pause", "stop" or other commands to interrupt automatic unwinding, and the intelligent chip then stops the first electric roller 12 and the second electric roller 13 from operating.

[0034] S8. Repeat S5~S6 to complete the "copying" exercise for the entire handwritten scroll 30.

[0035] S9. During the practice in S8, after a layer of written white paper roll 31 is wrapped around the white paper roll storage area 17, the smart chip automatically causes the two sets of clamping mechanisms 20 to move synchronously to the corresponding two protective strips 22 between the first and second layers of the white paper roll 31. Whenever the first electric roller 12 and the second electric roller 13 rotate, the two sets of clamping mechanisms 20 drive the two protective strips 22 to move synchronously, thereby clamping the two sets of protective strips 22 between the first and second layers of the white paper roll 31, between the second and third layers, between the third and fourth layers, and so on. The isolation posts 23 on each protective strip 22 increase the distance between each two layers of white paper roll 31, protecting the ink from being scratched, thus achieving continuous writing.

[0036] S10. During the practice of S8, the smart chip causes the dryer 29 to blow air towards the ink stain, accelerating the drying speed of the ink stain and further reducing the probability of the ink stain being smudged.

[0037] S11. During the practice in S8, the first electric scroll 12 and the second electric scroll 13 can be reversed or rotated forward (requiring writing between lines) via voice or button commands. Gesture commands can also be used, where both hands are placed in the imaging area of ​​the camera component 9 and moved left or right twice. After the smart chip recognizes the gestures, it executes the command to move the hand-copy scroll 30 and the white paper scroll 31 left or right. Other gesture commands and voice commands can also be edited to the smart chip via the USB interface, enabling the smart learning table to have AI intelligent learning functions.

[0038] As can be seen from the above-mentioned motion-sensing interaction method for calligraphy practice, the motion-sensing interaction system of the smart learning table can realize various human-computer interactions such as voice interaction, touch interaction, and gesture interaction during calligraphy practice.

[0039] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A somatosensory interaction system for an intelligent learning desk, comprising a lifting desk, a tabletop of the lifting desk being provided with a gap and the gap being provided with a flip-over tabletop, a front edge of the flip-over tabletop being hinged to a front edge of the lifting desk, the flip-over tabletop being flipped over by a rear edge of the flip-over tabletop to the front, and the flip-over tabletop being tilted or flipped over to the front to expose the gap; characterized in that a writing board being installed at the gap and being located below the flip-over tabletop, the writing board being provided with a first electric winding drum and a second electric winding drum at left and right sides of the writing board respectively, and a hand copy storage area of the first electric winding drum and a hand copy storage area of the second electric winding drum being opposite to each other, and a white paper roll storage area of the first electric winding drum and a white paper roll storage area of the second electric winding drum being opposite to each other; two groups of pinch mechanisms being installed below the writing board, the two groups of pinch mechanisms being adjacent to front and rear edges of the white paper roll storage area, each group of pinch mechanisms corresponding to a third winding drum, the third winding drum being wound with an elastically deformable protective belt, a front surface of the protective belt being provided with isolation columns uniformly distributed along a length direction, and the end of the corresponding protective belt being sent to the white paper roll storage area by the pinch mechanism, and the protective belt being synchronously clamped in the white paper roll with the second electric winding drum rotating, and the isolation columns separating any two adjacent layers of the white paper roll to protect the handwriting.

2. The body-interaction system for a smart learning table according to claim 1, wherein: The hand copy storage area of the first electric winding drum and the hand copy storage area of the second electric winding drum are close to a rear edge of the writing board, and the hand copy storage area and the white paper roll storage area are both provided with a paper clamping slot.

3. The body interaction system for a smart learning table of claim 2, wherein: Each group of pinch mechanisms comprises a support, an upper friction belt and a lower friction belt, the support being connected to an underside of the writing board, the upper friction belt and the lower friction belt being rotatably connected to upper and lower portions of the support by pulleys, and a plurality of rollers inside the upper friction belt and a plurality of rollers inside the lower friction belt being opposite to each other, the support being provided with a motor for driving the pulleys to rotate, the upper friction belt and the lower friction belt being synchronously and reversely rotated, and the protective belt between the upper friction belt and the lower friction belt being moved.

4. The body interaction system for a smart learning table of claim 3, wherein: All the isolation columns of each protective belt are located in the middle of the protective belt, and form friction areas in contact with the upper friction belt and the lower friction belt in the empty space close to both sides of the protective belt.

5. The body interaction system for a smart learning table of claim 4, wherein: The writing board is provided with guide rollers at left and right sides of the writing board, and the first electric winding drum and the second electric winding drum are lower than the corresponding guide rollers.

6. The body interaction system for a smart learning table of claim 5, wherein: A pressure sensing plate is provided between the writing board and the flip-over tabletop, the pressure sensing plate being close to a right side of the writing board, and a top surface of the pressure sensing plate being provided with a pressure sensing matrix.

7. The body interaction system for a smart learning table of claim 6, wherein: An air dryer is provided at the gap, and the air dryer is located at a right side of the right side of the writing board. 8.The somatosensory interaction system for the smart learning table according to claim 7, characterized in that: The lifting desk is provided with a back plate at a front edge of the tabletop, an upper layer plate and a lower layer plate being provided at upper and middle portions of the back plate respectively, the upper layer plate being provided with a lamp, the lower layer plate being inlaid with an integrated copy stand, and a smart voice interaction sound box, a laser projection ruler and a camera assembly being provided on a top surface of the lower layer plate, and the laser projection ruler and the camera assembly being aligned with the writing board.

9. The body interaction system for a smart learning table of claim 8, wherein: The tabletop is provided with a control panel, and the control panel is electrically connected to a smart chip of the lifting desk.

10. A somatosensory interaction method for brush writing practice, characterized in that: The somatosensory interaction system for the intelligent learning desk is applied to the method of claim 9. S1. Send a height adjustment command to the smart chip via the height adjustment button on the control panel. The smart chip uses the drive module to make the height adjustment table legs move the desktop up and down to the appropriate position. Then manually open the flip table to fully expose the writing board. S2. Wrap the handwritten scroll to be copied around the handwritten scroll storage area of ​​the first electric scroll, and insert the end of the handwritten scroll into the paper clamping seam of the handwritten scroll storage area of ​​the second electric scroll; wrap the white paper roll around the white paper roll storage area of ​​the first electric scroll, and insert the end of the white paper roll into the paper clamping seam of the white paper roll storage area of ​​the second electric scroll. S3. Issue the voice command "Practice calligraphy" or press the "Practice calligraphy" button on the control panel. After the smart chip receives the corresponding command through the smart voice interaction speaker, the laser projection ruler projects multiple rows of grid characters on the white paper roll. The number of rows of grid characters is adjusted according to the vertical width of the actual white paper roll. The smart chip obtains image information of the location of the pressure sensing plate through the camera component. S4. The writer holds the brush and places his right hand on the pressure sensing plate. He writes in the first column of laser characters on the right in the traditional vertical writing direction. During the writing process, the smart chip identifies the position of the right hand in the image data captured by the camera component, and infers the position of the right hand by the pressure change of the pressure sensing plate. S5. When the right hand writes to the last laser character in the current column, if the pressure of the pressure sensor plate returns to zero and the position of the right hand in the image data shows a large displacement, the smart chip will determine that the writer has completed writing the current column based on these two obvious data changes. S6. When the smart chip determines that the current column has been written, the smart chip will issue a "roll up" prompt through the smart voice interaction speaker. After a few seconds, the first and second electric rollers will rotate synchronously in the forward direction. The handwritten roll and the white paper roll will move one grid to the right and then stop, and the user can continue to write the next column. S7. If automatic unwinding is not required in S6, within seconds of the intelligent voice interaction speaker issuing the "unwind" prompt, the writer issues a voice command such as "pause", "stop" or other voice commands to interrupt automatic unwinding, and the intelligent chip will stop the first electric roll and the second electric roll from moving. S8. Repeat S5~S6 to complete the "copying" exercise for the entire handwritten scroll; S9. During the practice in S8, after a layer of written white paper is wrapped around the white paper roll storage area, the smart chip automatically causes the two sets of clamping and feeding mechanisms to move the corresponding two protective strips synchronously between the first and second layers of the white paper roll. Whenever the first electric drum and the second electric drum rotate, the two sets of clamping and feeding mechanisms drive the two protective strips to move synchronously, thereby clamping the two sets of protective strips between the first and second layers of the white paper roll, between the second and third layers, between the third and fourth layers, and so on. S10. During the S8 practice, the smart chip causes the dryer to blow air onto the ink, accelerating the drying speed of the ink.

Images