Intelligent piano and piano teaching system

Abstract

The application provides an intelligent piano and a piano teaching system. The intelligent piano comprises a piano body and a keyboard, the keyboard comprises a first logical keyboard and a second logical keyboard, the keys in the first logical keyboard and the keys in the second logical keyboard correspond one by one, and the keys in the first logical keyboard and the corresponding keys are configured to have the same tone in a first playing mode. The intelligent piano supports two-person playing.

Description

Technical Field

[0001] This invention relates to an intelligent musical instrument, and more particularly to an intelligent piano and a piano teaching system. Background Technology

[0002] The piano is a commonly used keyboard instrument in Western classical music, often referred to as the "King of Instruments." It is widely used in classical music performances, including solos, ensembles, and accompaniment, and is very convenient for composing and rehearsing music. Therefore, most aspiring musicians choose the piano as their first instrument to learn.

[0003] In recent years, with the continuous development of technologies such as the Internet and artificial intelligence, smart pianos have emerged. Compared with traditional pianos, smart pianos are more powerful and easier to use, and therefore have been widely used in piano teaching and other scenarios. However, the inventors found in practical applications that, in existing technologies, smart pianos only support playing by a single user. In some scenarios where cost and / or space are limited, the number of pianos often cannot meet the playing needs of all users. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide an intelligent piano and a piano teaching system to solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above and other related objectives, the present invention provides an intelligent piano, which includes a piano body and a keyboard. The keyboard includes a first logical keyboard and a second logical keyboard. The keys in the first logical keyboard and the keys in the second logical keyboard correspond one-to-one, and the keys in the first logical keyboard and their corresponding keys are configured to have the same timbre in a first playing mode.

[0006] In one embodiment of the present invention, all keys in the first logical keyboard and all keys in the second logical keyboard are configured to have different timbres in the second playing mode.

[0007] In one embodiment of the present invention, the smart piano is further configured to be played in either the first playing mode or the second playing mode according to a received mode selection instruction.

[0008] In one embodiment of the present invention, the smart piano further includes a display screen, which is used to display a first screen and a second screen in different areas in the first playing mode.

[0009] In one embodiment of the present invention, the smart piano is further configured to display the question information on the display screen when receiving a question information sent by an external device, and to send a first answer information and / or a second answer information to the external device, and to display a first answer result on the first screen and / or a second answer result on the second screen, wherein the first answer information is input through the keys in the first logical keyboard, and the second answer information is input through the keys in the second logical keyboard.

[0010] In one embodiment of the present invention, the smart piano is further configured to display first playing status information on the first screen and / or display second playing status information on the second screen, wherein the first playing status information corresponds to the playing status of the first logical keyboard and the second playing status information corresponds to the playing status of the second logical keyboard.

[0011] In one embodiment of the present invention, the smart piano is further configured to display login information through the first screen and / or the second screen.

[0012] In one embodiment of the present invention, the smart piano further includes a first audio output port and a second audio output port. The first audio output port is used to output a first audio signal in the first playing mode, and the second audio output port is used to output a second audio signal in the first playing mode. The first audio signal is an audio signal corresponding to a key in the first logical keyboard, and the second audio signal is an audio signal corresponding to a key in the second logical keyboard.

[0013] In one embodiment of the present invention, the smart piano further includes a processor, which is configured to generate the first audio signal based on the key playing actions in the first logical keyboard collected in the first playing mode, and to generate the second audio signal based on the key playing actions in the second logical keyboard collected in the first playing mode.

[0014] To achieve the above and other related objectives, the present invention also provides a piano teaching system, which includes at least one student-end piano and at least one teacher-end piano, wherein the student-end piano and / or the teacher-end piano is any of the smart pianos described above.

[0015] As described above, the intelligent piano in one or more embodiments of the present invention has the following beneficial effects:

[0016] The smart piano's keyboard includes a first logical keyboard and a second logical keyboard, wherein the keys on the first and second logical keyboards correspond one-to-one, and the keys on the first logical keyboard and their corresponding keys are configured to have the same timbre in the first playing mode. Therefore, in the first playing mode, two users can play the first and second logical keyboards respectively, thus enabling two people to share the same smart piano, satisfying the playing needs of as many users as possible under conditions of limited cost and / or space. Attached Figure Description

[0017] Figure 1 The diagram shown is a structural schematic of the smart piano described in a specific embodiment of the present invention.

[0018] Figure 2 The diagram shown is a structural schematic of the keyboard of the smart piano described in a specific embodiment of the present invention.

[0019] Figures 3A to 3C The diagram shown is a structural schematic of the display screen in a specific embodiment of the smart piano described in this invention.

[0020] Figure 4A Displayed as Figure 1 A magnified view of a portion of region S in the middle.

[0021] Figure 4B The diagram shown is a partial circuit diagram of the smart piano described in a specific embodiment of the present invention.

[0022] Component designation explanation

[0023] 1. Smart Piano

[0024] 11. Piano Body

[0025] 111 Left pedal assembly

[0026] 112 Right-side pedal assembly

[0027] 113 Middle Pedal Set

[0028] 114 First audio output port

[0029] 115 Volume Adjuster

[0030] 116 Audio Input Ports

[0031] 12-keyboard

[0032] 121 First Logic Keyboard

[0033] 122 Second Logic Keyboard

[0034] 13 Display screens

[0035] 131 First Scene

[0036] 132 Second Screen

[0037] 41 Intelligent Piano Sound Source

[0038] 42 Analog-to-Digital Converter

[0039] 431 First Data Selector

[0040] 432 Second Data Selector

[0041] 441-444 Amplifiers

[0042] S area

[0043] A and B output terminals

[0044] a, c First channel output terminals

[0045] b, d Second channel output terminals Detailed Implementation

[0046] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0047] It should be noted that the illustrations provided in the following embodiments are merely schematic representations of the basic concept of the present invention. The illustrations only show components relevant to the present invention and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex. Furthermore, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0048] With the continuous development of technologies such as the internet and artificial intelligence, smart pianos have emerged. Compared to traditional pianos, smart pianos often contain processing chips to enable functions such as internet connectivity, learning assistance, and leisure entertainment. In recent years, the related technologies and industries of smart pianos have developed rapidly and are now widely used in piano teaching and other scenarios. However, smart pianos in this technology only support playing by a single user. In some scenarios where cost and / or space are limited, such as rural schools, the number of pianos is often insufficient to meet the playing needs of all users.

[0049] To address at least the aforementioned problems, the present invention provides a smart piano. The smart piano will now be described in detail through specific embodiments and accompanying drawings.

[0050] Figure 1 The diagram shown is a structural schematic of a smart piano 1 according to a specific embodiment of the present invention. Figure 1 As shown, the smart piano 1 includes a piano body 11 and a keyboard 12. The keyboard 12 includes a first logical keyboard and a second logical keyboard. The first logical keyboard contains a portion of the keys on the keyboard 12, and the second logical keyboard contains the remaining portion of the keys on the keyboard 12. Furthermore, the keys on the first logical keyboard correspond one-to-one with the keys on the second logical keyboard, and the keys on the first logical keyboard and their corresponding keys are configured to have the same timbre in a first playing mode, which is a two-player playing mode.

[0051] Preferably, for any key in the first logical keyboard, the corresponding key is a key in the second logical keyboard at the same position. That is, the nth key in the first logical keyboard corresponds to the nth key in the second logical keyboard, where n is a positive integer less than or equal to N, and N represents the number of keys in the first logical keyboard. For example, Figure 2 This is a schematic diagram of one possible structure of the keyboard 12 in this embodiment. For example... Figure 2 As shown, keyboard 12 contains 88 keys. The first logical keyboard 121 can contain 44 keys on the left, and the second logical keyboard 122 can contain 44 keys on the right. Specifically, the first left key 21 of the first logical keyboard 121 corresponds to the first left key 65 of the second logical keyboard 122, and both are configured to have the same timbre in the first playing mode; the second left key 22 of the first logical keyboard 121 corresponds to the second left key 66 of the second logical keyboard 122, and both are configured to have the same timbre in the first playing mode, and so on.

[0052] Preferably, in this embodiment, the smart piano 1 uses a preset key-timbre mapping table to map the keys in the keyboard 12 to their corresponding timbres in the first playing mode. The key-timbre mapping table records the mapping relationship between keys and timbres. For example, key 36 in the first logical keyboard 121 can be mapped to middle C, and key 84 in the second logical keyboard 122 can be mapped to middle C. Based on these two middle C keys, the mapping relationship between the remaining keys in the first and second logical keyboards 121 and their corresponding timbres can be obtained.

[0053] It should be noted that in piano teaching scenarios, piano learners often do not have complex playing needs; they frequently need to practice simple pieces repeatedly. Therefore, in the first playing mode, by selecting an appropriate sheet music, piano learners only need to play the keys on the first logical keyboard 121 or the second logical keyboard 122. In this mode, the smart piano 1 supports two learners to use it together, thus meeting the playing needs of as many users as possible under conditions of limited cost and / or space.

[0054] In one embodiment of the present invention, the smart piano 1 supports playing music that requires only N or fewer keys, or music that is less than three octaves in length.

[0055] Optionally, in the first playing mode, the smart piano 1 is further configured to acquire the sheet music to be played and determine whether the sheet music meets the playing conditions. If the playing conditions are met, the first playing mode is used for playing; otherwise, a prompt message is generated to inform the user that the sheet music does not support the first playing mode. The playing conditions may be, for example, that the sheet music requires only N or fewer keys to play, or that the sheet music is less than three octaves long.

[0056] In one embodiment of the present invention, all keys in the first logical keyboard 121 and all keys in the second logical keyboard 122 are configured to have different timbres in the second playing mode; that is, all keys in the first logical keyboard 121 and all keys in the second logical keyboard 122 form a complete set of keys. In the second playing mode, the smart piano 1 supports playing all piano scores, and the second playing mode is a single-player playing mode. Figure 2 Taking the keyboard 12 shown as an example, the timbres corresponding to keys 21 to 108 are different in the second playing mode.

[0057] In one embodiment of the present invention, the smart piano 1 is further configured to be a first playing mode or a second playing mode according to a received mode selection instruction, wherein the mode selection instruction can be input by the user through a device such as piano keys according to actual needs. Furthermore, in this embodiment, the smart piano 1 can be configured to either the first playing mode or the second playing mode, but the present invention is not limited thereto, and in specific applications, the smart piano 1 can also be configured to other playing modes according to actual needs.

[0058] In one embodiment of the present invention, the smart piano 1 may further include a display screen 13, which can be used to display information such as the sheet music, fingering, rhythm and / or error correction guidance to be played. Figure 3A This is a schematic diagram of the structure of the display screen 13 in this embodiment. Figure 3A As shown, in this embodiment, the display screen 13 can be configured to display a first screen 131 and a second screen 132 in a first playing mode. The first screen 131 corresponds to the first logical keyboard 121 and is used by a first user. The second screen 132 corresponds to the second logical keyboard 122 and is used by a second user. It should be noted that, in addition to being configured to display the first screen 131 and the second screen 132 in a divided manner, in some other embodiments, the display screen 13 can also be configured to display only one screen or multiple screens; this invention does not limit this.

[0059] Optionally, the smart piano 1 can also be used to display the question information sent by an external device, such as a teacher's piano, on the display screen 13 when it receives the question information.

[0060] Preferably, the smart piano 1 uses a first screen 131 and a second screen 132 to jointly display the question information, such as... Figure 3B As shown, the first and second users can answer or compete to answer based on the displayed content.

[0061] Optionally, after displaying the question information on the display screen 13, the smart piano 1 can also generate a first answer based on the key information of the first logical keyboard 121, and generate a second answer based on the key information of the second logical keyboard 122. For example, if the first user presses the first key on the left side of the first logical keyboard 121, the smart piano 1 can configure the first user's answer as option A. Furthermore, the smart piano 1 can also send the first answer information and / or the second answer information to an external device.

[0062] Optionally, the smart piano 1 can also be used to display the first answer result via the first screen 131 and / or the second answer result via the second screen 132, for example... Figure 3CAs shown, the first answer corresponds to the first user, and the second answer corresponds to the second user.

[0063] Optionally, the smart piano 1 can also be used to display a first musical score via a first screen 131 and / or a second musical score via a second screen 132. Furthermore, the smart piano 1 can also be used to display first playing status information via the first screen 131 and / or second playing status information via the second screen 132. The first playing status information corresponds to the playing status of the first logical keyboard 121, that is, the playing status of the first user. The second playing status information corresponds to the playing status of the second logical keyboard 122, that is, the playing status of the second user. The first and second playing status information may include, for example, the number of times notes were played, the number of correctly played notes, and / or the number of incorrectly played notes.

[0064] It should be noted that the content displayed on the first screen 131 and the second screen 132 can be independent of each other. In specific applications, the first screen 131 and the second screen 132 can display the sheet music or playing status at the same time, or the first screen 131 can display the first sheet music and the second screen 132 can display the second playing status information.

[0065] Optionally, the smart piano 1 can also display login information on the display screen 13. In some embodiments, the smart piano 1 can display login information on the first screen 131 and the second screen 132 respectively for the first user and the second user to log in. In other embodiments, the smart piano 1 can display login information on both the first screen 131 and the second screen 132 for the first user and the second user to log in.

[0066] In one embodiment of the present invention, the smart piano 1 may further include a first audio output port and a second audio output port, wherein the first audio output port and / or the second audio output port are, for example, headphone jacks. Specifically, the first audio output port is used to output a first audio signal in a first playing mode, and the second audio output port is used to output a second audio signal in the first playing mode. The first audio signal refers to the audio signal corresponding to a key in the first logical keyboard, that is, the audio signal generated when a key in the first logical keyboard is pressed, and the second audio signal refers to the audio signal corresponding to a key in the second logical keyboard, that is, the audio signal generated when a key in the second logical keyboard is pressed. For example, Figure 4A Displayed as Figure 1 The enlarged schematic diagram of the central region S shows the first audio output port 114. The second audio output port is similar to the first audio output port 114, and will not be described in detail here.

[0067] Preferably, the first audio output port 114 can be located on the piano body 11 near the left side of the keyboard 12, and the second audio output port can be located on the piano body 11 near the right side of the keyboard 12, but the present invention is not limited thereto.

[0068] Optionally, the first audio output port and the second audio output port can be connected to an audio player or headphones. For example, when the first audio output port is connected to the first headphones and the second audio output port is connected to the second headphones, in the first playing mode, the first user can hear the piano sound produced when the keys in the first logical keyboard are pressed through the first headphones but will not hear the piano sound produced when the keys in the second logical keyboard are pressed, and the second user can hear the piano sound produced when the keys in the second logical keyboard are pressed through the second headphones but will not hear the sound produced when the keys in the first logical keyboard are pressed. In some embodiments, the first headphones and the second headphones can be included in the smart piano 1 and sold and / or used together with the smart piano 1. In other embodiments, the first headphones and the second headphones can also be included outside the smart piano 1. In this case, the first headphones and the second headphones can be connected to the first audio output port and the second audio output port, respectively.

[0069] Optionally, in this embodiment, the piano body 11 may further include a processor. The processor is used to generate a first audio signal based on key playing actions within a first logical keyboard acquired in the first playing mode, and to generate a second audio signal based on key playing actions within a second logical keyboard acquired in the first playing mode. Preferably, in the first playing mode, the processor can process the acquired key playing actions based on the key-timbre mapping table to generate the first audio signal or the second audio signal.

[0070] Optionally, in this embodiment, the piano body 11 may further include an analog-to-digital converter. Specifically, Figure 4B This diagram shows a partial circuit diagram inside the piano body 11 in this embodiment. Figure 4B As shown, the first audio signal or the second audio signal generated by the intelligent piano sound source 41 is converted into two digital signals by the analog-to-digital converter 42. The first audio signal is output through output terminal A after being converted into a digital signal, and the second audio signal is output through output terminal B after being converted into a digital signal.

[0071] Optionally, the keyboard 12 can be connected to the first audio output port and the second audio output port via an audio signal transmission circuit. Specifically, in this embodiment, the audio signal transmission circuit may include a first transmission branch, a second transmission branch, a third transmission branch, and a fourth transmission branch.

[0072] The first transmission branch is connected to the keyboard 12 and the first channel output terminal of the first audio output port 114, and is used to transmit the first audio signal to the first channel output terminal of the first audio output port. The first channel output terminal of the first audio output port is, for example, its left channel output terminal.

[0073] The second transmission branch is connected to the keyboard 12 and the second channel output of the second audio output port, and is used to transmit the second audio signal to the second channel output of the second audio output port. The second channel output of the second audio output port is, for example, its right channel output.

[0074] The third transmission branch is connected to the keyboard 12 and the second channel output of the first audio output port 114, and is used to transmit the first audio signal to the second channel output of the first audio output port in the first playing mode. The second channel output of the first audio output port is, for example, its right channel output.

[0075] The fourth transmission branch is connected to the keyboard 12 and the first channel output of the second audio output port, and is used to transmit the second audio signal to the first channel output of the second audio output port in the first playing mode. The first channel output of the second audio output port is, for example, its left channel output.

[0076] Optionally, the third transmission branch is also used to transmit the second audio signal to the second channel output of the first audio output port in the second playing mode. The fourth transmission branch is also used to transmit the first audio signal to the first channel output of the second audio output port in the second playing mode. When the first audio output port is connected to the first earphone and the second audio output port is connected to the second earphone, in the second playing mode, the user can hear the piano sound produced when the keys in the first logic keyboard 121 are pressed and the piano sound produced when the keys in the second logic keyboard 122 are pressed through both the first earphone and the second earphone.

[0077] Optionally, in this embodiment, the third transmission branch may include a first data selector, and the fourth transmission branch may include a second data selector. The control signals of the first data selector and the second data selector are the same, and the control signals are used to configure the playing mode of the smart piano 1.

[0078] Please see Figure 4BIn this embodiment, the first input terminal of the first data selector 431 and the second input terminal of the second data selector 432 are both connected to the output terminal B of the analog-to-digital converter 42 for inputting a second audio signal. The second input terminals of the first data selector 431 and the first input terminals of the second data selector 432 are both connected to the output terminal A of the data selector 42 for inputting a first audio signal. Furthermore, the output terminal of the first data selector 431 is connected to the second channel output terminal b of the first audio output port, and the output terminal of the second data selector 432 is connected to the first channel output terminal c of the second audio output port. When the user configures the smart piano 1 to the first playing mode via a control signal, for example, by configuring the control terminals of the first data selector 431 and the second data selector 432 to a first level value, the second input terminals of the first data selector 431 and the second data selector 432 are selected. At this time, the first channel output terminal a and the second channel output terminal b of the first audio output port output the same first audio signal, and the first channel output terminal b and the second channel output terminal d of the second audio output port output the same second audio signal, allowing two users to play separately. When the user configures the smart piano 1 to the second playing mode via control signals, for example, when the control terminals of the first data selector 431 and the second data selector 432 are configured to the second level value, the first input terminals of the first data selector 431 and the second data selector 432 are selected. At this time, the audio signals output by the first audio output port and the second audio output port are the same, so that a single user can play.

[0079] Optionally, in this embodiment, the first transmission branch may include an amplifier 441, and the output terminal A of the analog-to-digital converter 42 may be connected to the first channel output terminal a of the first audio output port through the amplifier 441. However, the present invention is not limited thereto, and in some other embodiments, the first transmission branch may not include an amplifier.

[0080] Optionally, in this embodiment, the second transmission branch may include an amplifier 442, and the output terminal B of the analog-to-digital converter 42 may be connected to the second channel output terminal d of the second audio output port through the amplifier 442. However, the present invention is not limited thereto, and in some other embodiments, the second transmission branch may not include an amplifier.

[0081] Optionally, in this embodiment, the third transmission branch may also include an amplifier 443. The output of the first data selector 431 can be connected to the second channel output b of the first audio output port through the amplifier 443. However, the present invention is not limited thereto, and in some other embodiments, the third transmission branch may not include an amplifier.

[0082] Optionally, in this embodiment, the fourth transmission branch may also include an amplifier 444. The output of the second data selector 432 can be connected to the first channel output of the second audio output port c through the amplifier 444. However, the present invention is not limited thereto, and in some other embodiments, the fourth transmission branch may not include an amplifier.

[0083] In this embodiment, the smart piano 1 includes a left pedal group 111, a right pedal group 112, and a middle pedal group 113. Both the left pedal group 111 and the right pedal group 112 include a sustain pedal and a soft pedal. The sustain pedal and soft pedal in the left pedal group 111 are used to control the sustain and soft functions of the keys within the first logic keyboard, respectively. The sustain pedal and soft pedal in the right pedal group 112 are used to control the sustain and soft functions of the keys within the second logic keyboard, respectively. The middle pedal group 113 includes a sustain pedal, a soft pedal, and a middle pedal. The sustain pedal and soft pedal in the middle pedal group 113 are used to control the sustain and soft functions of all keys.

[0084] Optionally, the smart piano 1 may also include two volume controls, which are used to adjust the volume of the audio output from the first audio output port and the second audio output port, respectively. For example, Figure 4A The image exemplarily shows a volume regulator 115 located near a first audio output port 114, wherein the volume regulator 115 is communicatively connected to the first audio output port 114 and is used to control the volume of the audio output from the first audio output port 114.

[0085] Optionally, in this embodiment, the volume regulator is, for example, a volume adjustment knob, but the present invention is not limited thereto.

[0086] Optionally, the smart piano 1 may also include two audio input ports, one of which is located near the first audio output port 114, and the other is located near the second audio output port. For example, Figure 4A An audio input port 116 is shown as an example, located near the first audio output port 114.

[0087] Optionally, the smart piano 1 may also include two audio acquisition units, which are respectively connected to two audio input ports for independently acquiring sound signals.

[0088] Optionally, in this embodiment, the audio input port is, for example, a microphone jack, and the audio acquisition device is, for example, a microphone, but the present invention is not limited thereto.

[0089] Optionally, the smart piano 1 may also include two audio players, which are respectively connected to the first audio output port 114 and the second audio output port.

[0090] Based on the above description of the smart piano 1, the present invention also provides a piano teaching system, which includes at least one student-end piano and at least one teacher-end piano. The student-end piano and / or the teacher-end piano can be the smart piano described in this invention.

[0091] In summary, the keyboard of the smart piano described in one or more embodiments of the present invention includes a first logical keyboard and a second logical keyboard, wherein the keys in the first logical keyboard and the second logical keyboard correspond one-to-one, and the keys in the first logical keyboard and their corresponding keys are configured to have the same timbre in the first playing mode. Therefore, in the first playing mode, two users can play the first logical keyboard and the second logical keyboard respectively, thereby enabling two people to share the same smart piano, thus satisfying the playing needs of as many users as possible under conditions of limited cost and / or space.

[0092] Furthermore, in some embodiments, the smart piano includes a first audio output port and a second audio output port that are independent of each other. In a first playing mode, the first audio output port and the second audio output port can output different audio signals respectively. When two users play the keys in the first logical keyboard and the second logical keyboard respectively, the two users can use headphones to hear their own playing results through the first audio output port and the second audio output port respectively without being affected by the other's playing.

[0093] Furthermore, in some other embodiments, the smart piano can use the first screen and the second screen on the display to display different content for two users respectively, or it can use the first screen and the second screen together to display content for the user, thereby meeting different needs in practical applications.

[0094] Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0095] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A smart piano, characterized in that, The smart piano includes a piano body and a keyboard. The keyboard includes a first logical keyboard and a second logical keyboard. The keys in the first logical keyboard and the keys in the second logical keyboard correspond one-to-one. In the first playing mode, the keys in the first logical keyboard and their corresponding keys are configured to have the same timbre. The piano body includes: An analog-to-digital converter is used to convert the first audio signal or the second audio signal generated by the sound source of the smart piano into two digital signals. The first transmission branch is used to transmit the first audio signal to the first channel output terminal of the first audio output port; The second transmission branch is used to transmit the second audio signal to the second channel output terminal of the second audio output port; The third transmission branch includes a first data selector, used to transmit the first audio signal to the second channel output of the first audio output port in the first playing mode, and to transmit the second audio signal to the second channel output of the first audio output port in the second playing mode. The fourth transmission branch includes a second data selector, used to transmit the second audio signal to the first channel output terminal of the second audio output port in the first playing mode, and to transmit the first audio signal to the first channel output terminal of the second audio output port in the second playing mode. The control signals for the first data selector and the second data selector are the same, and the control signals are used to configure the playing mode of the smart piano.

2. The intelligent piano according to claim 1, characterized in that, All keys in the first logical keyboard and all keys in the second logical keyboard are configured to have different timbres in the second playing mode.

3. The intelligent piano according to claim 2, characterized in that, The smart piano is also configured to be played in either the first playing mode or the second playing mode based on a received mode selection instruction.

4. The intelligent piano according to claim 1, characterized in that, The smart piano also includes a display screen, which is used to display a first image and a second image in different areas during the first playing mode.

5. The intelligent piano according to claim 4, characterized in that, The smart piano is also used to display the question information sent by an external device through the display screen when it receives the question information, and to send the first answer information and / or the second answer information to the external device, and to display the first answer result through the first screen and / or the second answer result through the second screen, wherein the first answer information is input through the piano keys in the first logical keyboard, and the second answer information is input through the piano keys in the second logical keyboard.

6. The intelligent piano according to claim 4, characterized in that, The smart piano is also used to display first playing status information on the first screen and / or display second playing status information on the second screen, wherein the first playing status information corresponds to the playing status of the first logical keyboard and the second playing status information corresponds to the playing status of the second logical keyboard.

7. The intelligent piano according to claim 4, characterized in that, The smart piano is also used to display login information through the first screen and / or the second screen.

8. The intelligent piano according to claim 1 or 2, characterized in that, The smart piano also includes a first audio output port and a second audio output port. The first audio output port is used to output a first audio signal in the first playing mode, and the second audio output port is used to output a second audio signal in the first playing mode. The first audio signal is the audio signal corresponding to the key in the first logical keyboard, and the second audio signal is the audio signal corresponding to the key in the second logical keyboard.

9. The intelligent piano according to claim 8, characterized in that, The smart piano also includes a processor, which is used to generate the first audio signal based on the key playing actions in the first logical keyboard collected in the first playing mode, and to generate the second audio signal based on the key playing actions in the second logical keyboard collected in the first playing mode.

10. A piano teaching system, characterized in that, The piano teaching system includes at least one student-end piano and at least one teacher-end piano, wherein the student-end piano and / or the teacher-end piano is a smart piano as described in any one of claims 1 to 9.

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