CN108962201B

CN108962201B - Liftable teaching piano and use method

Info

Publication number: CN108962201B
Application number: CN201810959876.7A
Authority: CN
Inventors: 单宏健
Original assignee: Yangzhou University
Current assignee: Yangzhou University
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2020-11-24
Anticipated expiration: 2038-08-22
Also published as: CN108962201A

Abstract

The invention discloses a liftable teaching piano and a use method thereof, wherein the teaching piano comprises a body and a lifting device, the body is provided with a plurality of piano keys, the piano keys are provided with pressure sensors, a flashing lamp and the pressure sensors are both connected with a controller, the controller is provided with a storage module, exercise songs are stored in the storage module, signals received by the pressure sensors are transmitted to the controller, and the controller reads the signals to compare with the songs in the storage module; the lifting device comprises electric hydraulic lifting rods positioned on two sides of the body, a U-shaped top plate is mounted at the tops of the electric hydraulic lifting rods, the top plate is connected with a piano frame on the body, the piano frame is inserted into the bottom frame, and the piano frame is driven to move through the electric hydraulic lifting rods, so that the height of the piano is adjusted, and the piano is suitable for students with different heights; the comfort level of different students when using the same piano is improved, and the application range of the piano is also expanded.

Description

Liftable teaching piano and use method

Technical Field

The invention relates to a liftable teaching piano, and belongs to the field of pianos.

Background

In recent years, the development of modern microprocessors is penetrating all areas, and traditional musical instruments and modern electronic technology are combined to produce electronic organs. The conventional musical instrument is generally provided with a music stand to assist a user in learning and playing, but the conventional musical instrument has problems in that: on one hand, when some performance places are not suitable for placing music stands, users all need to rely on manual memory, errors are avoided, and some users cannot play musical instruments normally due to difficulty in memorizing music scores. On the other hand, when using traditional piano to practise, the student plays while seeing the music book, always can influence the rhythm of playing originally, does not know after playing moreover whether oneself plays the mistake, just so influences their exercise, and the learning effect can be relatively poor, and the learning progress also can be relatively slow. In addition, when the same piano is used for practice or performance, the comfort level of use is inevitably different because different students have different heights. In order to improve the comfort of each student, the structure of the piano needs to be adjusted to suit different students.

Although automatic page turning devices for pianos exist in the prior art, the automatic page turning devices do not consider the change of the transmission direction, and occupy too much extra space in the page turning process; the function of pressing the page after the page is turned is not considered, so that much inconvenience is brought in the using process.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a liftable teaching piano which can record the piano playing posture of a practicer in real time, can independently exercise through a display screen, can record the pressure during piano playing through a flashing lamp, and can compare the pressure with stored songs through a pressure sensor to obtain an exercise result.

The technical scheme is as follows: in order to solve the technical problem, the liftable teaching piano comprises a body and a lifting device arranged below the body, wherein a plurality of piano keys are arranged on the body, flashing lamps corresponding to the piano keys are arranged at the front ends of the piano keys, switches are arranged on the flashing lamps, pressure sensors are arranged on the piano keys, the flashing lamps and the pressure sensors are both connected with a controller, a camera device is arranged on the side surface of the body, and the camera device is connected with the controller; the controller is provided with a storage module, the storage module stores exercise songs, signals received by the pressure sensor are transmitted to the controller, and the controller reads the signals to compare with the songs in the storage module; elevating gear contains the electro-hydraulic lifter that is located the body both sides, the roof of U shape is installed at the top of electro-hydraulic lifter, and the musical instrument frame on roof and the body is connected, and the musical instrument frame inserts on the chassis, drives the musical instrument frame through the electro-hydraulic lifter and removes to adjust the height of piano, adapt to the student of different heights.

Preferably, the body is provided with a display screen, and the display screen displays a comparison result of the read signal and the song in the storage module.

Preferably, the body is provided with an automatic page turning music stand, the music stand comprises a mounting support and a support plate hinged with the mounting support, the front surface of the support plate is provided with a groove, the music is positioned in the groove, the front surface of the support plate is provided with a left rotating rod and a right rotating rod, the left rotating rod and the right rotating rod are both arranged on the support plate through bearings, the left rotating rod and the right rotating rod are respectively arranged on a left rotating shaft and a right rotating shaft, the back surface of the support plate is provided with a motor, a motor shaft of the motor is provided with a first bevel gear, the first bevel gear is meshed with a second gear, the second gear comprises an upper second bevel gear and a lower first circular gear, the second bevel gear is meshed with the first bevel gear, the first circular gear is meshed with a second circular gear, the second circular gear is respectively meshed with a third circular gear and a fourth circular gear, the left rotating shaft and the right rotating shaft are respectively provided with a fifth circular gear and a sixth, the third circular gear is meshed with the fifth circular gear, and the fourth circular gear is meshed with the sixth circular gear; the front face of the supporting plate is provided with a camera for photographing the music score, the camera is in signal connection with the controller, the controller is internally provided with an image processing module, the right upper corner of the front face of the supporting plate is provided with a sucker, the sucker is connected with a miniature air pump, and the miniature air pump is connected with the controller; the camera shoots a music score, the picture is transmitted to the controller, the controller processes the picture to obtain music score information in the music score, the controller judges whether the music score of the page is played completely according to a signal of the pressure sensor, when the controller knows that the music score is about to be completed, the controller controls the motor to rotate to drive the right rotating rod to be away from the music score, the micro air pump works, the sucking disc sucks the music score needing page turning, the controller controls the motor to rotate reversely to drive the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the first circular gear to rotate, the first circular gear drives the second circular gear to rotate, the second circular gear simultaneously drives the third circular gear and the fourth circular gear to rotate, the third circular gear and the fourth circular gear respectively drive the fifth circular gear and the sixth circular gear to rotate, so as to drive the left rotating shaft and the right rotating shaft to rotate, and further drive the left rotating rod and the right rotating rod to rotate, the right rotating rod turns the page of the music score, after the page is successfully turned, the controller controls the motor to rotate reversely again, the right rotating rod returns to the initial position, and the left rotating rod and the right rotating rod press the music score.

Preferably, a recording device is arranged on the front face of the supporting plate and connected with the controller, a voice recognition module is arranged in the controller, and the controller recognizes an audio signal of the recording device through the voice recognition module.

Preferably, a scoring module is arranged in the controller, the controller reads signal information in the voice recognition module and a pressure signal of the pressure sensor, scoring is carried out through the scoring module, and a scoring result is displayed on a display screen.

Preferably, the back of backup pad is equipped with a pair of adjustment support, adjusts the support and articulates in the backup pad, and the tip of adjustment support is equipped with adsorption equipment, adsorbs on the piano body through adsorption equipment, through the position of adjustment adsorption equipment to the contained angle of adjustment backup pad and body.

Preferably, the mounting bracket comprises a fixed plate and a telescopic plate, the fixed plate is inserted into the telescopic plate and locked in the telescopic plate through a first locking bolt, and the fixed plate is hinged to the supporting plate.

Preferably, the expansion plate is L-shaped, a second locking bolt is arranged on the expansion plate, and the expansion plate is fixed on the body through the second locking bolt.

Preferably, the expansion plate is U-shaped, a third locking bolt is arranged on the side wall of the expansion plate, and the expansion plate is fixed on the body through the third locking bolt.

Has the advantages that: according to the liftable teaching piano and the using method, the piano frame is driven to move through the electric hydraulic lifting rod, so that the height of the piano is adjusted, students with different heights are adapted, and the piano teaching is more humanized; in the early stage, the fingering of playing the piano is exercised through the flashing sequence of the flashing lamps, the pressure and the pressing time during playing the piano are detected through the pressure sensor, and then the comparison result is obtained through comparison with the songs stored in the controller; when having crossed the primary stage, place the music sheet on the music sheet frame, the practitioner is when practising, and the controller detects the pressure signal of button through the picture information and the pressure sensor who read the camera, and when one page of music sheet will be popped up, controller control motor rotates, accomplishes turning over the page or leaf of music sheet through the pole that turns right. The invention can improve the comfort of different students using the same piano and expand the application range of the piano.

Drawings

Fig. 1 is a schematic structural view of a piano.

Fig. 2 is a schematic front view of the support plate.

Fig. 3 is a back view of the support plate.

Fig. 4 is a schematic structural view of the mounting bracket.

Fig. 5 is another structural schematic view of the mounting bracket.

Fig. 6 is a schematic structural diagram of the lifting device.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 6, the liftable teaching piano of the present invention comprises a body 1, wherein the body 1 is provided with a plurality of piano keys, flashing lights corresponding to each key of the piano keys are arranged at the front ends of the piano keys, the flashing lights are provided with switches, the piano keys are provided with pressure sensors 19, the flashing lights and the pressure sensors 19 are both connected with a controller, and a camera device is arranged on the side surface of the body 1 and connected with the controller; the controller is equipped with memory module, and the song of exercise is stored in the memory module, and the signal transmission that pressure sensor 19 received is for the controller, and the controller reads the song of signal and memory module and compares. According to the sequence of keys and left and right hands in the piano score, the color of the keys required by the left hand can be set to be yellow, the color of the keys required by the right hand is red, the sequence of the keys in the piano is stored in the controller, the controller controls the flashing sequence and the flashing color of the flashing lamps to remind a primary practicer to exercise, the controller reads the pressure information of the pressure sensor and compares the pressure information with the notes stored in the controller to obtain a comparison result. The below of body is equipped with elevating gear, elevating gear contains the electro-hydraulic lifting rod 23 that is located the body both sides, the roof of U-shaped shape is installed at the top of electro-hydraulic lifting rod 23, and the musical instrument frame on roof and the body is connected, and the musical instrument frame inserts on chassis 21, drives musical instrument frame 20 through electro-hydraulic lifting rod 23 and removes to adjust the height of piano, adapt to the student of different heights. Specifically, the section of the piano frame of the piano body is i-shaped, the bottom end of the piano frame is located in the groove 22 of the bottom plate, and the step of the piano frame 20 is located on the bottom plate 21, so that the piano frame 20 is supported when not in use.

In the invention, the body 1 is provided with a display screen, and the display screen displays the comparison result of the read signal and the song in the storage module.

In the invention, an automatic page turning music score rack 2 is arranged on a body 1, the music score rack 2 comprises an installation support and a support plate hinged with the installation support, a groove is arranged on the front surface of the support plate, a music score is positioned in the groove, a left rotating rod 3 and a right rotating rod 4 are arranged on the front surface of the support plate, the left rotating rod 3 and the right rotating rod 4 are both arranged on the support plate through bearings, the left rotating rod 3 and the right rotating rod 4 are respectively arranged on a left rotating shaft 12 and a right rotating shaft 10, a motor 15 is arranged on the back surface of the support plate, a first bevel gear 7 is arranged on a motor 15 shaft of the motor 15, the first bevel gear 7 is meshed with a second gear 8, the second gear 8 comprises a second bevel gear on the upper part and a first circular gear on the lower part, the second bevel gear is meshed with the first bevel gear 7, the first circular gear is meshed with a second circular gear, the second circular gear is respectively meshed with a third circular gear, a fifth circular gear and a sixth circular gear are respectively arranged on the left rotating shaft 12 and the right rotating shaft 10, the third circular gear 13 is meshed with the fifth circular gear, and the fourth circular gear 11 is meshed with the sixth circular gear; the front face of the supporting plate is provided with a camera for photographing the music score, the camera is installed on the supporting plate and is in signal connection with the controller, the controller is internally provided with an image processing module, the right upper corner of the front face of the supporting plate is provided with a sucker 5, the sucker 5 is connected with a micro air pump 9, and the micro air pump 9 is connected with the controller; the camera shoots the music score and transmits the picture to the controller, the controller processes the picture, when the controller obtains the music score in the picture to be completed, the controller controls the motor 15 to rotate, the electric right rotating rod 4 is far away from the music score, the micro air pump 9 works, the sucker 5 absorbs the music score needing to be turned, the controller controls the motor 15 to rotate reversely, the first bevel gear 7 is driven to rotate, the first bevel gear 7 drives the second bevel gear to rotate, the second bevel gear drives the first circular gear to rotate, the first circular gear drives the second circular gear to rotate, the second circular gear simultaneously drives the third circular gear 13 and the fourth circular gear 11 to rotate, the third circular gear 13 and the fourth circular gear 11 respectively drive the fifth circular gear and the sixth circular gear to rotate, so as to drive the left rotating shaft 12 and the right rotating shaft 10 to rotate, so as to drive the left rotating rod 3 and the right rotating rod 4 to rotate, the right rotating rod 4 turns the page of the music score needing to be turned, when the page turning is successful, the controller controls the motor 15 to rotate reversely again, the right rotating rod 4 returns to the initial position, and the left rotating rod 3 and the right rotating rod 4 press the music score. The page turning and pressing functions can be simultaneously performed by one motor 15, and the automatic page turning function can be realized.

In the invention, the front surface of the supporting plate is provided with a recording device, the recording device is connected with a controller, a voice recognition module is arranged in the controller, and the controller recognizes an audio signal of the recording device through the voice recognition module.

In the invention, a scoring module is arranged in the controller, the controller reads signal information in the voice recognition module and a pressure signal of the pressure sensor 19, scoring is carried out through the scoring module, and a scoring result is displayed on a display screen.

In the invention, the back of the supporting plate is provided with a pair of adjusting brackets 6, the adjusting brackets are hinged on the supporting plate, the end parts of the adjusting brackets 6 are provided with adsorption devices 16, the adjusting brackets are adsorbed on the piano body 1 through the adsorption devices 16, and the included angle between the supporting plate and the piano body 1 is adjusted by adjusting the positions of the adsorption devices 16, so that the piano is suitable for exercisers with various heights.

In the present invention, the mounting bracket includes a fixed plate 17 and a telescopic plate 18, the fixed plate 17 is inserted into the telescopic plate 18, the fixed plate 17 is locked in the telescopic plate 18 by a first locking bolt, and the fixed plate 17 is hinged to the supporting plate.

In the present invention, the extension plate 18 is L-shaped, a second locking bolt is provided on the extension plate 18, and the extension plate 18 is fixed on the body 1 by the second locking bolt. The expansion plate 18 can also be designed into a U shape, a third locking bolt is arranged on the side wall of the expansion plate 18, and the expansion plate 18 is fixed on the body 1 through the third locking bolt. Through being the L type or the U type with expansion plate 18 design, can make things convenient for whole device adaptation to the piano top to be platelike structure or for the box structure, when being platelike structure, can select for use the U type, when being the box structure, can select for use the L type.

A use method of a liftable teaching piano comprises the following steps:

(1) the practicer places the music sheet on the supporting plate and adjusts the positions of the left rotating rod 3 and the right rotating rod 4 so that the music sheet is pressed by the left rotating rod 3 and the right rotating rod 4;

(2) the controller controls the camera to photograph the music score, reads a picture of the picture and processes the picture to obtain notes on the music score;

(3) the practicer carries out the exercise, presses the pressure sensor 19 when contacting, and the pressure sensor 19 sends the recognized musical notes to the controller;

(4) when the controller recognizes that the music sheet on the page is about to be played through the pressure sensor 19, the controller controls the motor 15 to rotate, the motor 15 drives the right rotating rod 4 to be away from the music sheet, the miniature air pump 9 works, the suction disc 5 adsorbs the music sheet, the controller controls the motor 15 to rotate reversely, the motor 15 drives the right rotating rod 4 to rotate, the music sheet is turned over, after the page is successfully turned, the controller controls the motor 15 to rotate reversely, the right rotating rod 4 and the left rotating rod 3 are driven to reset, the music sheet is pressed, and the practicer continues to practice.

Claims

1. The utility model provides a teaching piano of liftable which characterized in that: the piano key comprises a body and a lifting device arranged below the body, wherein a plurality of piano keys are arranged on the body, flashing lamps corresponding to the piano keys are arranged at the front ends of the piano keys, switches are arranged on the flashing lamps, pressure sensors are arranged on the piano keys, the flashing lamps and the pressure sensors are both connected with a controller, and a camera device is arranged on the side surface of the body and connected with the controller; the controller is provided with a storage module, the storage module stores exercise songs, signals received by the pressure sensor are transmitted to the controller, and the controller reads the signals to compare with the songs in the storage module; the lifting device comprises electric hydraulic lifting rods positioned on two sides of the body, a U-shaped top plate is mounted at the tops of the electric hydraulic lifting rods, the top plate is connected with a piano frame on the body, the piano frame is inserted into the bottom frame, and the piano frame is driven to move through the electric hydraulic lifting rods, so that the height of the piano is adjusted, and the piano is suitable for students with different heights;

the automatic page turning music score stand is arranged on the body and comprises a mounting support and a supporting plate hinged with the mounting support, a groove is formed in the front face of the supporting plate, a music score is positioned in the groove, a left rotating rod and a right rotating rod are arranged on the front face of the supporting plate and are both mounted on the supporting plate through bearings, the left rotating rod and the right rotating rod are respectively mounted on a left rotating shaft and a right rotating shaft, a motor is mounted on the back face of the supporting plate, a first bevel gear is mounted on a motor shaft of the motor and is meshed with a second gear, the second gear comprises a second bevel gear on the upper portion and a first circular gear on the lower portion, the second bevel gear is meshed with the first bevel gear, the first circular gear is meshed with a second circular gear, the second circular gear is respectively meshed with a third circular gear and a fourth circular gear, and a fifth circular gear and a sixth circular gear are respectively arranged on the left rotating shaft and the right rotating shaft, the third circular gear is meshed with the fifth circular gear, and the fourth circular gear is meshed with the sixth circular gear; the front face of the supporting plate is provided with a camera for photographing the music score, the camera is in signal connection with the controller, the controller is internally provided with an image processing module, the right upper corner of the front face of the supporting plate is provided with a sucker, the sucker is connected with a miniature air pump, and the miniature air pump is connected with the controller; the camera shoots a music score, the picture is transmitted to the controller, the controller processes the picture to obtain music score information in the music score, the controller judges whether the music score of the page is played completely according to a signal of the pressure sensor, when the controller knows that the music score is about to be completed, the controller controls the motor to rotate to drive the right rotating rod to be away from the music score, the micro air pump works, the sucking disc sucks the music score needing page turning, the controller controls the motor to rotate reversely to drive the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the first circular gear to rotate, the first circular gear drives the second circular gear to rotate, the second circular gear simultaneously drives the third circular gear and the fourth circular gear to rotate, the third circular gear and the fourth circular gear respectively drive the fifth circular gear and the sixth circular gear to rotate, so as to drive the left rotating shaft and the right rotating shaft to rotate, and further drive the left rotating rod and the right rotating rod to rotate, the right rotating rod turns the page of the music score, after the page is successfully turned, the controller controls the motor to rotate reversely again, the right rotating rod returns to the initial position, and the left rotating rod and the right rotating rod press the music score; the functions of page turning and pressing can be simultaneously completed through one motor 15, and the automatic page turning function can be realized;

the back of backup pad is equipped with a pair of adjustment support, adjusts the support and articulates in the backup pad, and the tip of adjustment support is equipped with adsorption equipment, adsorbs on the piano body through adsorption equipment, through adjustment adsorption equipment's position to the contained angle of adjustment backup pad and body.

2. The liftable teaching piano of claim 1, wherein: the body is provided with a display screen, and the display screen displays a comparison result of the read signal of the controller and the track in the storage module.

3. The liftable teaching piano of claim 1, wherein: the sound recording device is arranged on the front face of the supporting plate and connected with the controller, the voice recognition module is arranged in the controller, and the controller recognizes an audio signal of the sound recording device through the voice recognition module.

4. The liftable teaching piano of claim 1, wherein: the controller is internally provided with a scoring module, reads signal information in the voice recognition module and a pressure signal of the pressure sensor, scores through the scoring module, and a scoring result is displayed on the display screen.

5. The liftable teaching piano of claim 1, wherein: the mounting bracket comprises a fixed plate and a telescopic plate, the fixed plate is inserted into the telescopic plate, the fixed plate is locked in the telescopic plate through a first locking bolt, and the fixed plate is hinged with the supporting plate.

6. The liftable teaching piano of claim 5, wherein: the expansion plate is L-shaped, a second locking bolt is arranged on the expansion plate, and the expansion plate is fixed on the body through the second locking bolt.

7. The liftable teaching piano of claim 5, wherein: the expansion plate is U-shaped, and the side wall of the expansion plate is provided with a third locking bolt, and the expansion plate is fixed on the body through the third locking bolt.

8. A method of using the liftable teaching piano of claim 1, comprising the steps of:

(1) the practicer places the music sheet on the supporting plate, and adjusts the positions of the left rotating rod and the right rotating rod so that the music sheet is pressed by the left rotating rod and the right rotating rod;

(3) the trainee does exercises, the trainee presses the pressure sensor during the exercises, and the pressure sensor sends the recognized musical notes to the controller;

(4) when the controller discerned through pressure sensor that the musical instrument register of page or leaf was about to play the time, controller control motor rotated, and the motor drives right dwang and keeps away from the musical instrument register, and miniature air pump work, the sucking disc adsorbs the musical instrument register, and controller control motor reversal drives right dwang through the motor and rotates, turns over the page or leaf with the musical instrument register, and after the page or leaf succeeded, controller control motor reversal drove right dwang and left dwang reset, presses the musical instrument register, and the person of practicing continues the exercise.