CN112216258A - Interactive system of digital string instrument and digital string instrument - Google Patents
Interactive system of digital string instrument and digital string instrument Download PDFInfo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
- G10H1/342—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments for guitar-like instruments with or without strings and with a neck on which switches or string-fret contacts are used to detect the notes being played
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/165—User input interfaces for electrophonic musical instruments for string input, i.e. special characteristics in string composition or use for sensing purposes, e.g. causing the string to become its own sensor
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/221—Keyboards, i.e. configuration of several keys or key-like input devices relative to one another
- G10H2220/241—Keyboards, i.e. configuration of several keys or key-like input devices relative to one another on touchscreens, i.e. keys, frets, strings, tablature or staff displayed on a touchscreen display for note input purposes
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/395—Acceleration sensing or accelerometer use, e.g. 3D movement computation by integration of accelerometer data, angle sensing with respect to the vertical, i.e. gravity sensing.
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/441—Image sensing, i.e. capturing images or optical patterns for musical purposes or musical control purposes
- G10H2220/455—Camera input, e.g. analyzing pictures from a video camera and using the analysis results as control data
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Abstract
The invention discloses an interactive system of a digital string instrument and the digital string instrument, comprising: the music playing device comprises a functional module, a touch screen input module and a central processing module, wherein the functional module comprises a string playing module, a string culture module, a string knowledge module, a musical tune appreciation module and a string famous family module; the stringed music culture module is used for introducing the cultural connotation of the ancient lyre; the string music knowledge module is used for introducing the knowledge of the guqin; the musical instrument appreciating module is used for introducing and appreciating famous music; the string celebrity module is used for introducing the ancient lyre celebrity; the system comprises a touch screen input module used for inputting user information and selecting functions, and a central processing module used for processing data and selecting the functional modules according to input information. The invention has the advantages that the stringed instrument is not limited by high-quality materials and manufacturing processes any more, the production cost is low, and the propagation and the study of the stringed instrument are convenient.
Description
Technical Field
The invention relates to the technical field of musical instruments, in particular to an interactive system of a digital string instrument and the digital string instrument.
Background
Stringed musical instruments, an important branch of the musical instrument family, have almost all lyrics played by stringed instruments in classical music and even modern music. It can be seen that the delicateness and the listening are common features of all stringed instruments. The tone of the stringed instrument is uniform, and the stringed instrument has multi-level expressive force: surge shock when ensemble, gentle and graceful when solo; and has agile color due to abundant and variable bow techniques (quiver, smash, poke, jump, etc.).
The tone of the stringed instrument is mainly determined by the manufacturing materials and the manufacturing process of the stringed instrument, but in order to ensure the tone quality, the stringed instrument sometimes needs to be manufactured by selecting high-quality materials, the high-quality materials and the high manufacturing process greatly increase the cost of the stringed instrument, and the factors make the stringed instrument difficult to be widely spread and learned, thus being not beneficial to the spreading and inheriting of culture.
Disclosure of Invention
The invention aims to provide an interactive system of a digital stringed instrument and the digital stringed instrument, which have the advantages that the guqin is not limited by high-quality materials and manufacturing processes, the production cost is low, and the transmission and the study of the guqin are facilitated.
The technical purpose of the invention is realized by the following technical scheme:
an interactive system for a digital stringed instrument, comprising: a function module, a touch screen input module, a central processing module, a data database,
the functional module comprises a stringed music playing module, a stringed music culture module, a stringed music knowledge module, a musical tune appreciation module and a stringed music celebrity module,
the stringed instrument playing module is used for playing the virtual stringed instrument in a man-machine interaction manner;
the stringed music culture module is connected with the data database and used for calling data about the cultural connotation of the stringed instrument in the data database and sending the data to the central processing module;
the string music knowledge module is connected with the data database and used for calling data about string instrument knowledge in the data database and sending the data to the central processing module;
the musical instrument appreciation module is connected with the data database and is used for calling introduction and appreciation data of famous music in the data database and sending the data to the central processing module;
the string celebrity module is connected with the data database and used for calling data about string celebrities in the data database and sending the data to the central processing module;
the touch screen input module is used for user information input and function selection,
and the central processing module is used for processing data and selecting the functional module according to the input information.
Further setting: the string music playing module comprises a guqin playing module, and the guqin playing module is connected with the central processing module and used for playing virtual guqins.
Further setting: the Guqin playing module comprises a position detection submodule, a posture capture submodule, a skill detection submodule, a tone color storage submodule and an output submodule,
the position detection submodule is used for detecting the position of the virtual guqin touched by the finger of the user and outputting position information to the central processing module;
the gesture capturing submodule is used for acquiring a gesture image played by fingers of a user and outputting gesture information to the central processing module;
the skill detection submodule is used for detecting the force of pressing the virtual seven-stringed plucked instrument with the fingers of the user and the speed of the fingers of the user scratching the virtual seven-stringed plucked instrument, and outputting force information and speed information to the central processing module;
the tone storage submodule is used for storing different tones;
the central processing module determines a corresponding calling instruction from the corresponding relation of the position information, the posture information, the force information, the speed information and the calling instruction which are stored in advance according to the received position information, the posture information, the force information and the speed information, and the calling instruction calls the corresponding tone in the tone storage submodule and sends the tone to the output submodule;
the output submodule is used for playing the received tone.
Further setting: the gesture capturing submodule comprises a gesture acquisition unit, a gesture comparison unit and a first storage unit,
the first storage unit is used for storing gesture information and a finger gesture image corresponding to the gesture information;
the gesture acquisition unit is used for acquiring finger gesture images of the virtual guqin played by the user in real time and sending the images to the gesture comparison unit;
the gesture comparison unit analyzes the received finger gesture image in real time, compares the finger gesture image with the finger gesture image stored in the first storage unit, acquires corresponding gesture information and outputs the gesture information to the central processing module.
Further setting: the skill detection submodule comprises a speed detection unit and a strength detection unit.
Further setting: the speed detection unit comprises a time detection subunit, a position detection subunit and a calculation subunit,
the position detection subunit detects that a user finger touches the virtual guqin position to obtain first position information and detects that the user finger leaves the virtual guqin position to obtain second position information, and the first position information and the second position information are sent to the calculation subunit;
the time detection subunit samples the time from the time when the user finger touches the virtual guqin to the time when the user finger leaves the virtual guqin, and the obtained time information is sent to the calculation subunit;
and the calculating subunit calculates speed information according to the first position information, the second position information and the time information and sends the speed information to the central processing module.
Further setting: the force detection unit comprises a pressure detection subunit, a force comparison subunit and a second storage unit,
the second storage unit is used for storing force information and pressure information corresponding to the force information;
the pressure detection subunit is used for detecting the pressure of the fingers of the user pressing the virtual guqin to obtain pressure information and sending the pressure information to the strength comparison subunit;
the force comparison subunit receives the pressure information, compares the pressure information with the pressure information stored in the second storage unit to obtain corresponding force information, and sends the corresponding force information to the central processing module.
Further setting: the gesture collection unit collects the gesture images of the fingers of the user through the camera.
The utility model provides a digital string instrument that possesses interactive system including above-mentioned digital string instrument, includes musical instrument table and musical instrument bench, the mounting groove has been seted up at the top of musical instrument table, the mounting groove includes back wall and two just right lateral walls, be provided with the lifter plate in the mounting groove, the top of lifter plate is inlayed and is equipped with the touch-sensitive screen, be provided with elevating gear in the mounting groove, elevating gear is used for driving the lifter plate goes up and down, set up on the back wall and catch the groove, catch the inslot and be provided with the camera, the camera is used for acquireing user's finger gesture.
Further setting: the lifting device comprises a lifting screw, a lifting groove is formed in the side wall of the mounting groove, the lifting screw is connected with the lifting groove in a rotating mode, a lifting bevel gear is coaxially connected to the bottom of the lifting screw, a lifting motor is further arranged in the lifting groove, an output shaft of the lifting motor is connected with a transmission gear, the transmission gear is meshed with the lifting bevel gear, the lifting motor drives the lifting bevel gear to rotate through the transmission gear in a running mode, a lifting nut is sleeved on the lifting screw, the side wall of the lifting nut is connected with the lifting plate and used for driving the lifting plate to ascend or descend, and when the lifting nut is located at the top of the lifting screw, the top surface of the lifting plate is flush with the top surface of the table.
Further setting: be provided with infrared sensor on the back wall of mounting groove, be provided with the controller in the musical instrument table, infrared sensor, elevator motor with controller electric connection, when infrared sensor receives user's finger to shelter from, controller control elevator motor operation drives the lifting screw rotates to drive the lifter plate and descend.
In conclusion, the invention has the following beneficial effects: the posture capture module is used for capturing the postures of fingers of a player when playing the Guqin through the camera and the infrared sensor, obtaining fingering postures used by the player through the comparison of an image comparison technology and fingering data in the background database, outputting tone colors corresponding to fingering, light, thin or heavy, and highly restoring the tone colors played in different playing postures. The skill detection module comprises a speed submodule and a strength submodule, the speed submodule detects the distance and time of sliding across a screen when the left hand is used for fingering, the change of the speed when the left hand is used for fingering is obtained through calculation, and pronunciation corresponding to the speed change is matched and output according to a corresponding speed change curve. The force module detects pressing force on a screen when the left hand is used for carrying fingers and the right hand is used for playing strings, and corresponding pronunciations are obtained from the background database according to the detected force and are output. The effects of different dynamics, fingering and speed during playing of the seven-stringed plucked instrument can be better restored through the skill module and the gesture capturing module, and the playing or practicing of a player has better experience. Is convenient for the popularization and the propagation of the guqin. The camera and the infrared inductor are hidden inside the table body, so that the attractiveness of a product cannot be influenced when the non-stringed music playing module is used at ordinary times, the table body provided with the screen descends to expose the camera and the infrared inductor when the stringed music playing module is used, and the overall attractiveness of the product is guaranteed to the maximum extent.
Drawings
FIG. 1 is a block diagram showing the structure of an interactive system of a digital stringed musical instrument according to embodiment 1;
fig. 2 is a block diagram showing the structure of a guqin performance module according to embodiment 1;
FIG. 3 is a schematic view showing the overall structure of a digital stringed musical instrument in embodiment 2;
FIG. 4 is a schematic view showing the entire structure of the elevator plate in embodiment 2 after it has been lowered;
fig. 5 is a structural sectional view of the lifting device in embodiment 2.
In the figure, 1, a table; 2. a music stool; 3. mounting grooves; 4. a lifting plate; 5. a touch screen; 6. a camera; 7. an infrared sensor; 8. a lifting groove; 9. a lifting motor; 10. a transmission gear; 11. a lifting bevel gear; 12. a lifting screw; 13. a lifting nut; 31. a side wall; 32. a rear wall.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 and 2, an interactive system of a digital stringed musical instrument includes: the system comprises a function module, a touch screen input module, a central processing module and a data database. The touch screen input module is used for inputting user information and selecting functions; and the central processing module is used for processing data and selecting the functional module according to the input information. The functional module comprises a string music playing module, a string music culture module, a string music knowledge module, a musical tune appreciation module and a string music celebrity module.
The stringed instrument playing module is used for playing virtual stringed instruments in a man-machine interaction mode, a user can select different musical instruments according to requirements, the stringed instruments comprise a Guqin, an electronic organ, a Chinese lute, a Guzheng and the like, the central processing module receives selection information input by the user through the touch screen input module, and different virtual musical instrument images are displayed through the touch screen input module.
The stringed instrument culture module is connected with the data database and used for calling data about the stringed instrument culture connotation in the data database and sending the data to the central processing module, and the development and inheritance histories of various stringed instruments are explained in a text form through the touch screen input module according to the time sequence.
The string music knowledge module is connected with the data database and used for calling data related to string instrument knowledge in the data database and sending the data to the central processing module, and displaying playing skills of various string instruments in a text and video mode through the touch screen input module, so that a user can learn playing skills of various string instruments under the guidance of the skills recorded by professional teachers.
The musical instrument appreciation module is connected with the data database and used for calling introduction and appreciation data of famous songs in the data database and sending the data to the central processing module, introducing various large historical famous songs in a character mode through the touch screen input module, and synchronously playing various large historical famous songs in an audio mode, so that a user can enjoy the famous songs and learn knowledge of the large famous songs.
The string music celebrity module is connected with the data database and used for calling data about the string music celebrity in the data database and sending the data to the central processing module, and experiences of string music masters and string music players are introduced in a character form through the touch screen input module.
A user selects a required function module through interaction of the touch screen input module, the touch screen input module sends information input by the user to the central processing module, and the central processing module calls different function modules according to the information input by the user.
The stringed instrument playing module comprises an electronic organ playing module, and the electronic organ playing module is connected with the central processing module and used for playing the virtual electronic organ. And after the electronic organ playing module is selected to enter, displaying an electronic organ interface on the touch screen input module. This electronic organ interface contains 12 keys region, and 12 keys region constitutes a sound group, and wherein 7 are the white key region, and 5 are the black key region, and it presss from both sides two black key regions and four white key regions and presss from both sides three black key regions to be three white key region in proper order from a left side right side for three white key region. The tones corresponding to the left three white key regions are the C tone, the D tone and the E tone in sequence; the tones corresponding to the four white key regions on the right side are F tone, G tone, A tone and B tone in sequence, and the black key regions are semitones respectively adjacent to the adjacent white key regions. When a user touches the touch screen input module, the position information of the user is detected, the key area where the position information falls is determined, the corresponding key area is activated, and the sound of the corresponding note is output.
The string music playing module comprises a guqin playing module, and the guqin playing module is connected with the central processing module and used for playing the virtual guqin. The guqin playing module comprises a position detection submodule, a posture capture submodule, a skill detection submodule, a tone color storage submodule and an output submodule,
the position detection submodule is used for detecting the position of a user finger touching the virtual seven-stringed harp and outputting position information to the central processing module, the seven-stringed harp comprises seven harp strings from one string to seven strings, the string is the thickest and gradually becomes thinner from seven strings, the seven tones including sign, feather, palace, quotient, angle, sign and feather are respectively corresponding to the seven strings, the played tones of the different strings are different, and when the user finger contacts the touch screen input module, the position detection submodule detects the position information of a contact point and sends the position information to the central processing module, so that the string of the finger poking is determined.
The gesture capturing submodule is used for acquiring a gesture image played by fingers of a user and outputting gesture information to the central processing module; the skill detection submodule is used for detecting the force of pressing the virtual seven-stringed plucked instrument with the fingers of the user and the speed of the fingers of the user scratching the virtual seven-stringed plucked instrument, and outputting force information and speed information to the central processing module; the tone storage submodule is used for storing different tones;
and the central processing module determines a corresponding calling instruction from the corresponding relation of the position information, the posture information, the force information, the speed information and the calling instruction which are stored in advance according to the received position information, the posture information, the force information and the speed information, and the calling instruction calls the corresponding tone in the tone storage submodule and sends the tone to the output submodule. The position information corresponds to one of one string to seven strings in the guqin, and the position information of the string is output when the detected contact point of the finger and the touch screen input module is located in the range of the string. The strength information represents the strength of fingers when the seven-stringed plucked instrument is used for playing the seven-stringed plucked instrument, the strength refers to the strength of the strength, the loudness of the sound is determined by the amplitude of the vibration, and the amplitude of the vibration is determined by the size of the strength, so that the strength and the loudness of the sound form a positive correlation relationship. An important factor influencing the tension of the sounding of the guqin is the speed of finger movement by the left hand, generally speaking, the faster the speed, the more the force, and conversely, the looser the speed, so that the tension of the sounding of the guqin is in positive correlation with the speed information. The position information corresponds to different strings of the guqin, different pitches are played by the different strings, and the pitches are sequentially increased from one string to seven strings. The posture information is expressed as fingering of playing the Guqin, different posture information corresponds to different fingering, the position and angle of a finger touching string have close relation with the tone quality and tone color of the Guqin music in the process of playing the Guqin, so that the application of fingering plays a decisive role on the purity of tone color, wherein the main fingering of the right hand has different combinations of radial, support, smearing, picking, hooking, kicking, beating and picking, and different posture information corresponds to different fingering.
The output submodule is used for playing the received tone. It should be noted that the tone called from the tone storage submodule is a digital signal, and the output submodule outputs an analog signal, so that the digital signal of the called tone needs to be converted into an analog signal and then transmitted to the output submodule.
The gesture capture submodule comprises a gesture acquisition unit, a gesture comparison unit and a first storage unit, wherein the first storage unit is used for storing gesture information and finger gesture images corresponding to the gesture information, and different finger gesture images presented by different fingering methods are uniformly and correspondingly stored in the first storage unit. The gesture collection unit is used for collecting finger gesture images of the virtual guqin played by the user in real time and sending the images to the gesture comparison unit, and the gesture collection unit collects the finger gesture images of the user through the camera. The gesture comparison unit analyzes the received finger gesture images in real time, compares the received finger gesture images with the finger gesture images stored in the first storage unit, obtains the same or the most similar gesture images, and outputs corresponding gesture information to the central processing module.
The skill detection submodule comprises a speed detection unit and a strength detection unit. The speed detection unit comprises a time detection subunit, a position detection subunit and a calculation subunit, wherein the position detection subunit detects that a user finger touches the virtual guqin position to obtain first position information and detects that the user finger leaves the virtual guqin position to obtain second position information, and the first position information and the second position information are sent to the calculation subunit; the time detection subunit samples the time from the time when the user finger touches the virtual guqin to the time when the user finger leaves the virtual guqin, and the obtained time information is sent to the calculation subunit; and the calculating subunit calculates speed information according to the first position information, the second position information and the time information and sends the speed information to the central processing module.
The force detection unit comprises a pressure detection subunit, a force comparison subunit and a second storage unit, and the second storage unit is used for storing force information and pressure information corresponding to the force information; the pressure detection subunit is used for detecting the pressure of the fingers of the user pressing the virtual guqin to obtain pressure information and sending the pressure information to the strength comparison subunit; the force comparison subunit receives the pressure information, compares the pressure information with the pressure information stored in the second storage unit to obtain corresponding force information, and sends the corresponding force information to the central processing module.
Example 2:
as shown in fig. 3 and 4, a digital stringed instrument includes the interactive system of the digital stringed instrument in the above embodiment. Including musical instrument table 1 and musical instrument bench 2, mounting groove 3 has been seted up at the top of musical instrument table 1, and mounting groove 3 includes back wall 32 and two just right lateral walls 31, is provided with lifter plate 4 in the mounting groove 3, and lifter plate 4's top is inlayed and is equipped with touch-sensitive screen 5, is provided with elevating gear in the mounting groove 3, and elevating gear is used for driving lifter plate 4 and goes up and down, has seted up on the back wall 32 and has caught the groove, catches the inslot and is provided with camera 6, and camera 6 is used for acquireing user's.
As shown in fig. 4 and 5, the lifting device includes a lifting screw 12, a lifting groove 8 is formed in a side wall 31 of the mounting groove 3, a lifting screw 12 is connected to the lifting groove 8 in a rotating manner, a lifting bevel gear 11 is coaxially connected to the bottom of the lifting screw 12, a lifting motor 9 is further arranged in the lifting groove 8, an output shaft of the lifting motor 9 is connected with a transmission gear 10, the transmission gear 10 is meshed with the lifting bevel gear 11, the lifting motor 9 drives the lifting bevel gear 11 to rotate through the transmission gear 10, a lifting nut 13 is sleeved on the lifting screw 12, the side wall 31 of the lifting nut 13 is connected with the lifting plate 4 and used for driving the lifting plate 4 to ascend or descend, and when the lifting nut 13 is located at the top of the lifting screw 12, the top surface of. Be provided with infrared sensor 7 on the back wall 32 of mounting groove 3, be provided with the controller in the musical instrument table 1, infrared sensor 7, elevator motor 9 and controller electric connection, when infrared sensor 7 received user's finger to shelter from, controller control elevator motor 9 operation drives lifting screw 12 and rotates to drive lifter plate 4 descends.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (11)
1. An interactive system for a digital stringed instrument, comprising: a function module, a touch screen input module, a central processing module, a data database,
the functional module comprises a stringed music playing module, a stringed music culture module, a stringed music knowledge module, a musical tune appreciation module and a stringed music celebrity module,
the stringed instrument playing module is used for playing the virtual stringed instrument in a man-machine interaction manner;
the stringed music culture module is connected with the data database and used for calling data about the cultural connotation of the stringed instrument in the data database and sending the data to the central processing module;
the string music knowledge module is connected with the data database and used for calling data about string instrument knowledge in the data database and sending the data to the central processing module;
the musical instrument appreciation module is connected with the data database and is used for calling introduction and appreciation data of famous music in the data database and sending the data to the central processing module;
the string celebrity module is connected with the data database and used for calling data about string celebrities in the data database and sending the data to the central processing module;
the touch screen input module is used for user information input and function selection,
and the central processing module is used for processing data and selecting the functional module according to the input information.
2. The interactive system of a digital stringed musical instrument as in claim 1, wherein said stringed musical performance module comprises a guqin performance module, said guqin performance module being connected to said central processing module for playing a guqin.
3. The interactive system of a digital stringed musical instrument according to claim 2, wherein said guqin playing module comprises a position detecting sub-module, a posture capturing sub-module, a skill detecting sub-module, a tone storing sub-module and an output sub-module,
the position detection submodule is used for detecting the position of the virtual guqin touched by the finger of the user and outputting position information to the central processing module;
the gesture capturing submodule is used for acquiring a gesture image played by fingers of a user and outputting gesture information to the central processing module;
the skill detection submodule is used for detecting the force of pressing the virtual seven-stringed plucked instrument with the fingers of the user and the speed of the fingers of the user scratching the virtual seven-stringed plucked instrument, and outputting force information and speed information to the central processing module;
the tone storage submodule is used for storing different tones;
the central processing module determines a corresponding calling instruction from the corresponding relation of the position information, the posture information, the force information, the speed information and the calling instruction which are stored in advance according to the received position information, the posture information, the force information and the speed information, and the calling instruction calls the corresponding tone in the tone storage submodule and sends the tone to the output submodule;
the output submodule is used for playing the received tone.
4. The interactive system of a digital stringed musical instrument according to claim 3, wherein said posture capture submodule comprises a posture collection unit, a posture comparison unit, and a first storage unit,
the first storage unit is used for storing gesture information and a finger gesture image corresponding to the gesture information;
the gesture acquisition unit is used for acquiring finger gesture images of the virtual guqin played by the user in real time and sending the images to the gesture comparison unit;
the gesture comparison unit analyzes the received finger gesture image in real time, compares the finger gesture image with the finger gesture image stored in the first storage unit, acquires corresponding gesture information and outputs the gesture information to the central processing module.
5. The interactive system of a digital stringed musical instrument according to claim 3, wherein the skill detection sub-module comprises a velocity detection unit and a force detection unit.
6. The interactive system of a digital stringed musical instrument according to claim 5, wherein said velocity detecting unit comprises a time detecting subunit, a position detecting subunit and a calculating subunit,
the position detection subunit detects that a user finger touches the virtual guqin position to obtain first position information and detects that the user finger leaves the virtual guqin position to obtain second position information, and the first position information and the second position information are sent to the calculation subunit;
the time detection subunit samples the time from the time when the user finger touches the virtual guqin to the time when the user finger leaves the virtual guqin, and the obtained time information is sent to the calculation subunit;
and the calculating subunit calculates speed information according to the first position information, the second position information and the time information and sends the speed information to the central processing module.
7. The interactive system of a digital stringed musical instrument according to claim 5, wherein said force detecting unit comprises a pressure detecting subunit, a force comparing subunit and a second storing unit,
the second storage unit is used for storing force information and pressure information corresponding to the force information;
the pressure detection subunit is used for detecting the pressure of the fingers of the user pressing the virtual guqin to obtain pressure information and sending the pressure information to the strength comparison subunit;
the force comparison subunit receives the pressure information, compares the pressure information with the pressure information stored in the second storage unit to obtain corresponding force information, and sends the corresponding force information to the central processing module.
8. The interactive system of the digital string instrument as claimed in claim 4, wherein the gesture capture unit captures the gesture image of the user's finger through a camera.
9. A digital string instrument, comprising the interactive system of the digital string instrument as claimed in any one of claims 1 to 8, characterized by comprising a table (1) and a stool (2), wherein a mounting groove (3) is formed in the top of the table (1), the mounting groove (3) comprises a rear wall (32) and two opposite side walls (31), a lifting plate (4) is arranged in the mounting groove (3), a touch screen (5) is embedded in the top of the lifting plate (4), a lifting device is arranged in the mounting groove (3), the lifting device is used for driving the lifting plate (4) to lift, a catching groove is formed in the rear wall (32), a camera (6) is arranged in the catching groove, and the camera (6) is used for obtaining the finger gesture of a user.
10. The digital string instrument as claimed in claim 9, wherein the lifting device comprises a lifting screw (12), a lifting groove (8) is formed in a side wall (31) of the mounting groove (3), the lifting screw (12) is rotatably connected in the lifting groove (8), a lifting bevel gear (11) is coaxially connected to the bottom of the lifting screw (12), a lifting motor (9) is further arranged in the lifting groove (8), a transmission gear (10) is connected to an output shaft of the lifting motor (9), the transmission gear (10) is meshed with the lifting bevel gear (11), the lifting motor (9) drives the lifting bevel gear (11) to rotate through the transmission gear (10), a lifting nut (13) is sleeved on the lifting screw (12), and the side wall (31) of the lifting nut (13) is connected with the lifting plate (4), used for driving the lifting plate (4) to ascend or descend, the lifting nut (13) is positioned at the top of the lifting screw (12), and the top surface of the lifting plate (4) is flush with the top surface of the piano table (1).
11. The digital stringed musical instrument of claim 10, wherein: be provided with infrared sensor (7) on back wall (32) of mounting groove (3), be provided with the controller in the musical instrument table (1), infrared sensor (7), elevator motor (9) with controller electric connection, when infrared sensor (7) received user's finger and sheltered from, controller control elevator motor (9) operation drives elevator screw (12) rotate to it descends to drive lifter plate (4).
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