Intelligent piano accompaniment device

Abstract

The application discloses an intelligent piano accompaniment device, which comprises a bearing inclined plate, the bottom of the bearing inclined plate is provided with a soft pad, the upper side of the soft pad is provided with an upper supporting plate, the inside of the upper supporting plate is provided with a display outer frame, the inside of the display outer frame is provided with a first touch display screen, the inside of the upper side of the first touch display screen is provided with a recording port, the two sides of the recording port are respectively provided with a voice module and a wide-angle camera, the information received by the wide-angle camera and the recording port is sent to a microprocessor through a signal receiver for information processing, the microprocessor can compare and analyze the playing accuracy, playing method and playing sound of a player, so that timely evaluation can be made, and an AI recognition module in the microprocessor can analyze the installation of the device, so that the wide-angle camera can be more accurately aligned with the position of the keys during adjustment.

Description

Technical Field

[0001] This invention relates to the field of musical instrument technology, specifically to an intelligent piano practice device. Background Technology

[0002] The piano forte, invented by the 18th-century Italian Bartolomeo Christofori, is a milestone in the history of piano development and a cornerstone of the hammer-action piano manufacturing industry. The piano (Italian: pianoforte) is a keyboard instrument in Western classical music, often called the "King of Instruments," consisting of 88 keys (52 white keys and 36 black keys) and a metal soundboard. Invented in 1709, the piano's range extends from A2 (27.5Hz) to C5 (4186Hz), encompassing almost the entire spectrum of music. It is the instrument with the widest range besides the organ and is widely used for solo, ensemble, and accompaniment performances.

[0003] Piano beginners are prone to making mistakes because they are unfamiliar with the piano keys. Therefore, it is necessary to make real-time judgments on playing techniques and intonation and correct mistakes promptly. However, without real-time guidance from a teacher, incorrect playing techniques can easily become habits, which is very detrimental to learning the piano. Furthermore, if the practice equipment is not installed properly, it can easily cause misjudgments and affect the learning effect. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent piano practice device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A smart piano practice device includes a support ramp with a soft pad at its bottom. An upper support plate is positioned above one side of the soft pad. A display frame is located inside the upper support plate, and a first touchscreen display is located inside the display frame. A recording port is located above the interior of the first touchscreen display. A voice module and a wide-angle camera are respectively positioned on either side of the recording port, both located above the interior of the first touchscreen display. Electric push rods are located on both sides of the upper support plate, with their extensions fixedly connected to side support plates. Each of the side support plates is equipped with a suction cup on the side facing the inclined plate. A T-shaped slide is provided on one side of each side support plate, and a T-shaped slider is inserted into the interior of the T-shaped slide. The T-shaped slider is located on one side of the movable side box. A music stand is provided on the side of the upper support plate away from the first touch screen. An L-shaped elastic clamp is provided on one side of the music stand. A slider is provided below one side of the music stand. A threaded rod is threaded through and threaded into the interior of the slider. A motor is provided at one end of the threaded rod, and an auxiliary limiting plate is provided at the other end of the threaded rod. The threaded rod is fixedly connected to the output end of the motor.

[0007] As a further embodiment of the present invention: the soft pad is fixedly connected to the bearing inclined plate, the soft pad is made of non-slip rubber material, the display frame is embedded in the interior of the upper support plate, the display frame and the first touch display screen are an integral structure, the first touch display screen is electrically connected to an external power supply, the first touch display screen is fixedly connected to the center position inside one side of the upper support plate, and reinforcing struts are provided on both sides of the upper surface of the bearing inclined plate, the other end of the reinforcing struts is fixedly connected to the upper support plate.

[0008] As a further embodiment of the present invention: there are two electric push rods, the fixed ends of the two electric push rods are fixedly connected to the upper support plate, the telescopic ends of the two electric push rods extend in opposite directions, the telescopic ends of the electric push rods are fixedly connected to the center position above one side of the side support plate, and the suction cup is fixedly connected to the center position below one side of the side support plate.

[0009] As a further embodiment of the present invention: the T-shaped slide is located on the side of the side support plate away from the electric push rod. The length of the T-shaped slide is equal to the length of the T-shaped slider, and the length of the T-shaped slider is less than the length of the side support plate. A signal receiver and a microprocessor are installed inside the movable side box. An AI analysis module is installed inside the microprocessor. A switch button and a second touch screen are installed on one side of the movable side box. The switch button is located above the second touch screen. Multiple USB ports are installed on the top of the movable side box. There are two T-shaped slides and two T-shaped sliders.

[0010] As a further embodiment of the present invention: the music stand is fixedly connected to the middle position above one side of the upper support plate, the slider is fixedly connected to the music stand, a limiting block is fixedly connected to the side of the slider away from the music stand, and a T-shaped groove is provided inside the upper support plate on the side of the music stand, and the limiting block is slidably connected inside the T-shaped groove.

[0011] As a further embodiment of the present invention: there are four sliders, which are distributed in pairs inside the music stand. The sliders and the limiting blocks are integrated into a T-shaped structure. There are two T-shaped grooves, which are respectively opened on one side of the upper support plate at the positions on both sides of the music stand. The T-shaped structure composed of the sliders and the limiting blocks is slidably connected inside the T-shaped grooves.

[0012] As a further embodiment of the present invention: there are two threaded rods, which are distributed on both sides of the music stand. The motors at one end of each threaded rod are fixedly connected to the upper support plate, and both sides of the threaded rods are far away from the slider and the upper support plate.

[0013] As a further embodiment of the present invention: there are two L-shaped elastic clamps, the L-shaped clamps of the two L-shaped elastic clamps are arranged facing each other, the inside of the L-shaped elastic clamps is provided with paper clamps, and an anti-slip layer is provided on one side of the L-shaped elastic clamps located at the paper clamp insertion opening, and the two anti-slip layers are respectively fixedly connected on both sides of the music stand.

[0014] As a further embodiment of the present invention: the other end of the threaded rod is unthreaded and rotates inside the auxiliary limiting plate. The auxiliary limiting plate is fixedly connected above the upper support plate on the side away from the first touch screen. The auxiliary limiting plate is elongated and its length is equal to that of the music stand. The first touch screen, voice module, recording port, wide-angle camera, electric push rod, USB interface, switch button, second touch screen, and motor are all electrically connected to an external power source.

[0015] 10. A smart piano practice device according to any one of claims 1-9, comprising the following steps:

[0016] Step 1: When using, place the soft pad on top of the piano, place the side support plates on both sides of the piano, and then start the electric push rod to extend or retract to both sides of the piano. Adjust the installation position of the device and adjust the suction cups on both sides. When the electric push rod retracts, it can squeeze the suction cups to adapt to the structure of different pianos and the length of the extension on both sides.

[0017] Step 2: The soft pad at the bottom of the support ramp prevents the bottom of the device from rubbing against the piano and causing wear. The reinforcing struts on both sides support the upper support plate above the support ramp, thus maintaining the stability of the device. When the electric push rod tightens and the suction cups press against the sides of the piano, the device can be adsorbed and fixed to prevent it from tilting.

[0018] Step 3: The AI ​​analysis module inside the microprocessor analyzes the installation of the device, allowing the wide-angle camera to be more accurately positioned on the piano keys during adjustment. During playing, the AI ​​analysis module identifies and records the finger positions using the wide-angle camera, records the played sounds through the recording port, processes the sound and image information through the signal receiver, and sends it to the microprocessor. The microprocessor's intelligent algorithm analyzes and compares the sound and images, correcting the pitch, fingering, accuracy of finger use, and accuracy of finger changes for the same note. The correction results are displayed and broadcast on the first touchscreen and voice module, enabling error correction and helping the player practice effectively. It facilitates playing according to the sheet music and displays the incorrect passages in a timely manner, providing a more intuitive reminder of playing problems.

[0019] Step 4: When you need to practice with the sheet music, start the motor to make the slider slide up. When the slider slides up, it can also make the sheet music stand, which is fixed to the stand, rise up, so that the sheet music can be held for easy playing. The anti-slip layer and L-shaped elastic clamp can hold the paper. Sliding the T-shaped slider and installing it inside the T-shaped slide can install the movable side box, which can be installed on the side of the device.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Through the wide-angle camera and recording port, the information received by the camera and recording port is sent to the microprocessor for information processing via the signal receiver. It can collect and analyze the player's playing techniques and playing sounds during the performance, so as to make timely evaluations. The AI ​​recognition module inside the microprocessor can analyze the installation of the device, so that the wide-angle camera can be more accurately aligned with the position of the piano keys during adjustment.

[0022] 2. The first touch screen can display the score and the playing position in the score when the score is entered, which makes it easier to provide prompts during playing and correct errors. This helps the player to practice effectively and play according to the score. It can also display the wrong passage in time when a mistake is made, which can more intuitively remind the player of the playing problem.

[0023] 3. The suction cups extend or retract to both sides when the electric push rod is activated, which helps to adjust the installation position of the device. The suction cups on both sides can be adjusted, and when tightened, they can be squeezed to adapt to the structure of different pianos and the length of the extension on both sides. The soft pads prevent the bottom of the device from rubbing against the piano and causing wear. The reinforcing support rods provide diagonal support for the support plate and the upper support plate, thus maintaining the stability of the device.

[0024] 4. With the motor, slider and limit block set, the slider can be driven to slide and rise when the motor is started. When the slider slides and rises, it can drive the music stand fixed to the belt to rise, so as to hold the music sheet for easy playing. The anti-slip layer and L-shaped elastic clamp set on both sides of the music stand can hold the paper.

[0025] 5. The second touch screen can control the on / off adjustment and information collection status of the first touch screen. The USB charging port can add charging functionality to the device. The switch button can control the device to start. Attached Figure Description

[0026] Figure 1 A 3D structural diagram of an intelligent piano practice device;

[0027] Figure 2 This is a structural diagram of the main view in an intelligent piano practice device.

[0028] Figure 3 A side view structural diagram of an intelligent piano practice device;

[0029] Figure 4 A side view of the internal structure of an intelligent piano practice device;

[0030] Figure 5 A schematic diagram of the rear view structure in an intelligent piano practice device;

[0031] Figure 6 This is an enlarged schematic diagram of structure A in an intelligent piano practice device.

[0032] Figure 7 This is an enlarged schematic diagram of structure B in an intelligent piano practice device.

[0033] Figure 8 This is an enlarged schematic diagram of the C-structure in an intelligent piano practice device.

[0034] In the diagram: 1. Supporting inclined plate; 2. Soft pad; 3. Upper support plate; 4. Display frame; 5. First touch screen display; 6. Voice module; 7. Recording port; 8. Wide-angle camera; 9. Electric push rod; 10. T-shaped slide rail; 11. T-shaped slider; 12. Side support plate; 13. Suction cup; 14. Movable side box; 15. USB interface; 16. Switch button; 17. Second touch screen display; 18. Auxiliary limit plate; 19. Threaded rod; 20. Motor; 21. Slider; 22. Limiting block; 23. T-shaped slide rail; 24. Music stand; 25. L-shaped elastic clamp; 26. Anti-slip layer; 27. Paper clamp; 28. Reinforcing support rod; 29. ​​Signal receiver; 30. Microprocessor. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-8In this embodiment of the invention, an intelligent piano practice device has a soft pad 2 at the bottom of a supporting inclined plate 1. The soft pad 2 prevents the bottom of the device from rubbing against the piano and causing wear. An upper support plate 3 is provided above one side of the soft pad 2. A display frame 4 is provided inside the upper support plate 3. A first touch screen 5 is provided inside the display frame 4. A recording port 7 is provided above the first touch screen 5. A voice module 6 and a wide-angle camera 8 are respectively provided on both sides of the recording port 7. The wide-angle camera 8 and the recording port 7 can collect the player's playing techniques and playing sounds. Analysis is performed to provide timely evaluation. The voice module 6 and wide-angle camera 8 are both located above the first touchscreen display 5. When a score is entered, the score and its playing positions are displayed, making it easier to provide prompts during playing. Error correction is also possible, helping the player practice effectively and play according to the score. Furthermore, errors are displayed immediately, providing a more intuitive reminder of the playing problem. Electric push rods 9 are installed on both sides of the upper support plate 3, with their extensions fixedly connected to the side support plate 1. 2. Suction cups 13 are provided on the side of the side support plates 12 facing the supporting inclined plate 1. Activating the electric push rod 9 extends or retracts to both sides of the piano, helping to adjust the installation position of the device and the suction cups 13 on both sides. When the electric push rod 9 is tightened, it can squeeze the suction cups 13 to adapt to different piano structures and the length of the extended sides. A T-shaped slide rail 10 is provided on one side of one side support plate 12. A T-shaped slider 11 is inserted into the T-shaped slide rail 10. The T-shaped slider 11 is located on one side of the movable side box 14. The upper support plate 3 is away from the first contact point. A music stand 24 is provided on one side of the control display screen 5. An L-shaped elastic clamp 25 is provided on one side of the music stand 24. A slider 21 is provided below one side of the music stand 24. A threaded rod 19 is threaded through and threaded to the inside of the slider 21. A motor 20 is provided at one end of the threaded rod 19. When the motor 20 is started, it drives the slider 21 to slide and rise. When the slider 21 slides and rises, it can drive the music stand 24, which is fixed to the music stand 24, to rise, so as to hold the music for easy playing. An auxiliary limiting plate 18 is provided at the other end of the threaded rod 19. The threaded rod 19 is fixedly connected to the output end of the motor 20.

[0037] Preferably, the soft pad 2 is fixedly connected to the bearing inclined plate 1. The soft pad 2 is made of non-slip rubber material. The display frame 4 is embedded in the interior of the upper support plate 3. The display frame 4 and the first touch display screen 5 are an integral structure. The first touch display screen 5 is electrically connected to an external power supply. The first touch display screen 5 is fixedly connected to the center position inside one side of the upper support plate 3. Reinforcing struts 28 are provided on both sides of the upper surface of the bearing inclined plate 1. The other end of the reinforcing strut 28 is fixedly connected to the upper support plate 3, which can support the bearing inclined plate 1 and the upper support plate 3, thereby maintaining the stability of the device.

[0038] Preferably, there are two electric push rods 9. The fixed ends of both electric push rods 9 are fixedly connected to the upper support plate 3. The telescopic ends of the two electric push rods 9 extend in opposite directions. The telescopic ends of the electric push rods 9 are fixedly connected to the center position above one side of the side support plate 12. The suction cup 13 is fixedly connected to the center position below one side of the side support plate 12.

[0039] Preferably, the T-shaped slide 10 is located on the side of the side support plate 12 away from the electric push rod 9. The length of the T-shaped slide 10 is equal to the length of the T-shaped slider 11, and the length of the T-shaped slider 11 is less than the length of the side support plate 12. Sliding the T-shaped slider 11 and installing it inside the T-shaped slide 10 allows the movable side box 14 to be installed on the side of the device. The movable side box 14 is equipped with a signal receiver 29 and a microprocessor 30. The microprocessor 30 is equipped with an AI analysis module. A switch button 16 and a second touch display screen 17 are provided on one side of the movable side box 14. The switch button 16 is located above the second touch display screen 17. Multiple USB ports 15 are provided on the top of the movable side box 14. There are two T-shaped slides 10 and two T-shaped sliders 11.

[0040] Preferably, the music stand 24 is fixedly connected to the middle position above one side of the upper support plate 3, the slider 21 is fixedly connected to the music stand 24, the side of the slider 21 away from the music stand 24 is fixedly connected to the limiting block 22, the upper support plate 3 is provided with a T-shaped groove 23 inside the side of the music stand 24, and the limiting block 22 is slidably connected inside the T-shaped groove 23.

[0041] Preferably, there are four sliders 21, which are distributed in pairs inside the music stand 24. The sliders 21 and the limiting blocks 22 form a T-shaped structure. There are two T-shaped grooves 23, which are respectively opened on one side of the upper support plate 3 and located on both sides of the music stand 24. The T-shaped structure formed by the sliders 21 and the limiting blocks 22 is slidably connected inside the T-shaped grooves 23.

[0042] Preferably, there are two threaded rods 19, which are distributed on both sides of the music stand 24. The motors 20 at one end of both threaded rods 19 are fixedly connected to the upper support plate 3. Both sides of the threaded rods 19 are far away from the slider 21 and the upper support plate 3.

[0043] Preferably, there are two L-shaped elastic clamps 25, with the L-shaped clamping openings of the two L-shaped elastic clamps 25 facing each other. The interior of the L-shaped elastic clamp 25 is provided with a paper clamping opening 27. An anti-slip layer 26 is provided on one side of the paper clamping opening 27 of the L-shaped elastic clamp 25. The two anti-slip layers 26 are fixedly connected on both sides of the music stand 24. The anti-slip layer 26 and the L-shaped elastic clamp 25 can hold the paper.

[0044] Preferably, the other end of the threaded rod 19 is unthreaded and is rotatably connected inside the auxiliary limiting plate 18. The auxiliary limiting plate 18 is fixedly connected above the upper support plate 3 on the side away from the first touch display screen 5. The auxiliary limiting plate 18 is elongated and its length is equal to the length of the music stand 24.

[0045] Preferably, the first touch display screen 5, voice module 6, recording port 7, wide-angle camera 8, electric actuator 9, USB interface 15, switch button 16, second touch display screen 17, and motor 20 are all electrically connected to an external power source. The output terminals of the first touch display screen 5, voice module 6, recording port 7, wide-angle camera 8, electric actuator 9, USB interface 15, switch button 16, second touch display screen 17, and motor 20 are all electrically connected to the input terminal of signal receiver 29. The output terminal of signal receiver 29 is electrically connected to the input terminal of microprocessor 30. Signal receiver 29 and microprocessor 30 control electric actuator 9, motor 20, first touch display screen 5, voice module 6, recording port 7, and wide-angle camera 8, and can also be conveniently charged via USB interface 15.

[0046] The working principle of this invention is:

[0047] In use, place the soft pad 2 on top of the piano, and place the side support plates 12 on both sides of the piano. Activate the electric push rod 9 to extend or retract to both sides of the piano, which helps adjust the installation position of the device. Adjust the suction cups 13 on both sides; when tightened, the suction cups 13 can be squeezed to adapt to different piano structures and the length of the extended sides. The soft pad 2 at the bottom of the support ramp 1 prevents the bottom of the device from rubbing against the piano, causing wear. The reinforcing struts 28 on both sides of the support ramp 1 support the support ramp 1 and the upper support plate 3, thereby maintaining the stability of the device. Qualitatively, when the electric push rod 9 tightens and the suction cup 13 presses against both sides of the piano, it can adsorb and fix the device, preventing the device from tilting. Furthermore, the AI ​​analysis module inside the microprocessor 30 can analyze the installation of the device, thus allowing the wide-angle camera 8 to be more accurately aligned with the piano keys during adjustment. During playing, the AI ​​analysis module inside the microprocessor 30 can identify and record the position of the fingers playing through the wide-angle camera 8, record the played sounds through the recording port 7, process the sound and image information through the signal receiver, and input it into the microprocessor 30. The intelligent algorithm in the device analyzes and compares sound and images, correcting the pitch, fingering, accuracy of finger use, and accuracy of finger changes for the same note. The correction results are displayed and broadcast through the first touch screen 5 and the voice module 6, enabling error correction and helping the player to practice effectively. It facilitates playing according to the sheet music and can display the wrong passage in time when a mistake is made, providing a more intuitive reminder of the playing problem. When practicing with paper sheet music, the motor 20 is activated, causing the slider 21 to slide upwards. It can lift the music stand 24, which is fixed to the music stand 24, so as to hold the music sheet for easy playing. The anti-slip layer 26 and the L-shaped elastic clamp 25 can hold the paper. The sliding T-shaped slider 11 can be installed inside the T-shaped slide rail 10 to install the movable side box 14. The movable side box 14 can be installed on the side of the device. The electric push rod 9, motor 20, first touch display screen 5, voice module 6, recording port 7, and wide-angle camera 8 can be controlled by the signal receiver 29 and microprocessor 30. At the same time, it can be conveniently charged through the USB interface 15.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent piano practice device, comprising a support inclined plate (1), characterized in that: A soft pad (2) is provided at the bottom of the bearing inclined plate (1). An upper support plate (3) is provided above one side of the soft pad (2). A display frame (4) is provided inside the upper support plate (3). A first touch screen (5) is provided inside the display frame (4). A recording port (7) is provided above the inside of the first touch screen (5). A voice module (6) and a wide-angle camera (8) are respectively provided on both sides of the recording port (7). The voice module (6) and the wide-angle camera (8) are both located above the inside of the first touch screen (5). Electric push rods (9) are provided on both sides of the upper support plate (3). The extension end of the electric push rod (9) is fixedly connected to a side support plate (12). The side support plates (12) on both sides facing the bearing inclined plate (1) are provided with... The suction cup (13) has a T-shaped slide (10) on one side of the side support plate (12). A T-shaped slider (11) is inserted into the T-shaped slide (10). The T-shaped slider (11) is located on one side of the movable side box (14). A music stand (24) is provided on the side of the upper support plate (3) away from the first touch screen (5). An L-shaped elastic clamp (25) is provided on one side of the music stand (24). A slider (21) is provided below one side of the music stand (24). A threaded rod (19) is threaded through the inside of the slider (21). A motor (20) is provided at one end of the threaded rod (19). An auxiliary limiting plate (18) is provided at the other end of the threaded rod (19). The threaded rod (19) is fixedly connected to the output end of the motor (20). The T-shaped slide (10) is located on the side of the side support plate (12) away from the electric push rod (9). The length of the T-shaped slide (10) is equal to the length of the T-shaped slider (11), and the length of the T-shaped slider (11) is less than the length of the side support plate (12). The movable side box (14) is equipped with a signal receiver (29) and a microprocessor (30). The microprocessor (30) is equipped with an AI analysis module. A switch button (16) and a second touch screen (17) are located on one side of the movable side box (14). The switch button (16) is located above the second touch screen (17). Multiple USB ports (15) are located above the movable side box (14). There are two T-shaped slides (10) and two T-shaped sliders (11). The microprocessor (30) is equipped with an AI analysis module. The switch button (16) is located on one side of the movable side box (14). The second touch screen (17); the suction cups (13) on both sides are adjusted, and the electric push rod (9) can squeeze the suction cups (13) when tightened to adapt to the structure of different pianos and the length of the extended shape on both sides; the wide-angle camera (8) and the recording port (7) can collect the player's playing technique and playing sound during the performance and analyze it so that timely evaluation can be made. Activating the electric push rod (9) allows it to extend or retract to both sides of the piano, which helps adjust the installation position of the device.

2. The intelligent piano practice device according to claim 1, characterized in that: The soft pad (2) is fixedly connected to the bearing inclined plate (1). The soft pad (2) is made of non-slip rubber. The display frame (4) is embedded in the interior of the upper support plate (3). The display frame (4) and the first touch display screen (5) are an integral structure. The first touch display screen (5) is electrically connected to an external power supply. The first touch display screen (5) is fixedly connected to the center position inside one side of the upper support plate (3). Reinforcing struts (28) are provided on both sides of the upper surface of the bearing inclined plate (1). The other end of the reinforcing strut (28) is fixedly connected to the upper support plate (3).

3. The intelligent piano practice device according to claim 1, characterized in that: There are two electric push rods (9). The fixed ends of the two electric push rods (9) are fixedly connected to the upper support plate (3). The telescopic ends of the two electric push rods (9) extend in opposite directions. The telescopic ends of the electric push rods (9) are fixedly connected to the center position above one side of the side support plate (12). The suction cup (13) is fixedly connected to the center position below one side of the side support plate (12).

4. The intelligent piano practice device according to claim 1, characterized in that: The music stand (24) is fixedly connected to the middle position above one side of the upper support plate (3). The slider (21) is fixedly connected to the music stand (24). The slider (21) is fixedly connected to the side away from the music stand (24) by a limiting block (22). The upper support plate (3) is provided with a T-shaped groove (23) inside the side of the music stand (24). The limiting block (22) is slidably connected inside the T-shaped groove (23).

5. The intelligent piano practice device according to claim 4, characterized in that: There are four sliders (21), which are distributed in pairs inside the music stand (24). The sliders (21) and the limiting blocks (22) are a T-shaped structure. There are two T-shaped grooves (23), which are respectively opened on one side of the upper support plate (3) and located on both sides of the music stand (24). The T-shaped structure formed by the sliders (21) and the limiting blocks (22) is slidably connected inside the T-shaped grooves (23).

6. The intelligent piano practice device according to claim 1, characterized in that: There are two threaded rods (19), which are distributed on both sides of the music stand (24). The motors (20) at one end of each threaded rod (19) are fixedly connected to the upper support plate (3). Both sides of the threaded rods (19) are far away from the slider (21) and the upper support plate (3).

7. The intelligent piano practice device according to claim 1, characterized in that: There are two L-shaped elastic clamps (25), and the L-shaped clamps of the two L-shaped elastic clamps (25) are arranged facing each other. The L-shaped elastic clamps (25) are provided with paper clamps (27) inside. An anti-slip layer (26) is provided on one side of the paper clamp (27) insertion of the L-shaped elastic clamps (25). The two anti-slip layers (26) are fixedly connected on both sides of the music stand (24).

8. The intelligent piano practice device according to claim 1, characterized in that: The other end of the threaded rod (19) is unthreaded and rotates inside the auxiliary limiting plate (18). The auxiliary limiting plate (18) is fixedly connected above the upper support plate (3) on the side away from the first touch screen (5). The auxiliary limiting plate (18) is long and narrow, and its length is equal to that of the music stand (24). The first touch screen (5), voice module (6), recording port (7), wide-angle camera (8), electric push rod (9), USB interface (15), switch button (16), second touch screen (17), and motor (20) are all electrically connected to an external power source.

9. A smart piano practice device according to any one of claims 1-8, characterized in that: The steps are as follows: Step 1: When using, place the soft pad on top of the piano, place the side support plates on both sides of the piano, and then start the electric push rod to extend or retract to both sides of the piano. Adjust the installation position of the device and adjust the suction cups on both sides. When the electric push rod retracts, it can squeeze the suction cups to adapt to the structure of different pianos and the length of the extension on both sides. Step 2: The soft pad at the bottom of the support ramp prevents the bottom of the device from rubbing against the piano and causing wear. The reinforcing struts on both sides support the upper support plate above the support ramp, thus maintaining the stability of the device. When the electric push rod tightens and the suction cups press against the sides of the piano, the device can be adsorbed and fixed to prevent it from tilting. Step 3: The AI ​​analysis module inside the microprocessor analyzes the installation of the device, allowing the wide-angle camera to be more accurately positioned on the piano keys during adjustment. During playing, the AI ​​analysis module identifies and records the finger positions using the wide-angle camera, records the played sounds through the recording port, processes the sound and image information through the signal receiver, and sends it to the microprocessor. The microprocessor's intelligent algorithm analyzes and compares the sound and images, correcting the pitch, fingering, accuracy of finger use, and accuracy of finger changes for the same note. The correction results are displayed and broadcast on the first touchscreen and voice module, enabling error correction and helping the player practice effectively. It facilitates playing according to the sheet music and displays the incorrect passages in a timely manner, providing a more intuitive reminder of playing problems. Step 4: When you need to practice with the sheet music, start the motor to make the slider slide up. When the slider slides up, it can also make the sheet music stand, which is fixed to the stand, rise up, so that the sheet music can be held for easy playing. The anti-slip layer and L-shaped elastic clamp can hold the paper. Sliding the T-shaped slider and installing it inside the T-shaped slide can install the movable side box, which can be installed on the side of the device.

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