A hand-held electronic musical instrument based on wireless communication

Abstract

The present invention relates to a hand - worn electronic musical instrument, which includes a housing, a distance sensor, a microcontroller and a first communication module; the distance sensor, the microcontroller and the first communication module are arranged inside the housing; a wearing structure is arranged on the surface of the housing, and the hand - worn electronic musical instrument is worn on the user's hand through the wearing structure; the distance sensor is electrically connected to the microcontroller, and the distance sensor is used to detect the distance between the electronic musical instrument and a reference plane; the microcontroller is used to calculate the musical note corresponding to the detected distance between the electronic musical instrument and the reference plane based on the distance detected by the distance sensor, and generate a MIDI message in a standard format; the first communication module is electrically connected to the microcontroller, and the first communication module is used to send the MIDI message generated by the microcontroller. By using the change of the spatial distance to generate corresponding performance music, the melody line of the music piece is directly presented, improving the experience of the performer.

Description

Technical Field

[0001] This application relates to the field of musical instruments, and particularly to a hand-held electronic musical instrument based on wireless communication. Background Art

[0002] Musical instruments, English: musical instruments, generally refer to utensils that can produce musical tones and rhythms in various ways. Generally divided into ethnic musical instruments and Western musical instruments. Musical instruments are utensils that can emit musical sounds and can be used for the re-creation of musical art. Humans play musical instruments to express and communicate their thoughts and feelings.

[0003] Music is composed of the ups and downs of musical notes, and the undulating curve of musical notes is the most intuitive manifestation of the melody of music. Keyboard musical instruments present the ups and downs of musical notes in the form of lower on the left and higher on the right on a horizontal plane. Other various musical instruments play different pitches through various playing techniques. However, there is a lack of musical instruments in the existing musical instruments that play the changes of musical notes by using spatial changes. Summary of the Invention

[0004] In view of the above problems, this application provides a hand-held electronic musical instrument based on wireless communication, which solves the problem that there is a lack of musical instruments in the existing musical instruments that play the changes of musical notes by using spatial changes.

[0005] To achieve the above object, the inventor provides a hand-held electronic musical instrument based on wireless communication, including a housing, a distance sensor, a microcontroller, and a first communication module;

[0006] The distance sensor, the microcontroller, and the first communication module are arranged in the housing;

[0007] A wearing structure is arranged on the surface of the housing, and the hand-held electronic musical instrument is worn on the user's hand through the wearing structure;

[0008] The distance sensor is electrically connected to the microcontroller, and the distance sensor is used to detect the distance between the electronic musical instrument and a reference plane;

[0009] The microcontroller is used to calculate the musical note corresponding to the detected distance between the electronic musical instrument and the reference plane by reading the distance detected by the distance sensor, and generate a MIDI message in a standard format;

[0010] The first communication module is electrically connected to the microcontroller, and the first communication module is used to send the MIDI message generated by the microcontroller.

[0011] Further optimized, the distance sensor is a laser ranging sensor, an ultrasonic ranging sensor, or a microwave ranging sensor.

[0012] Further optimized, the first communication module is a Bluetooth module.

[0013] For further optimization, it further includes a trigger module, which is arranged on the side of the housing and electrically connected to the microcontroller;

[0014] The trigger module is used to trigger the microcontroller to generate musical notes and MIDI messages.

[0015] For further optimization, the trigger module is a touch sensor.

[0016] For further optimization, it further includes a power supply module, which is connected to the first communication module, the distance sensor and the microcontroller.

[0017] For further optimization, the power supply module includes a lithium battery and a power management unit, and the lithium battery is connected to the first communication module, the distance sensor and the microcontroller through the power management unit.

[0018] For further optimization, it further includes a MIDI sound source product;

[0019] The MIDI sound source product includes a second communication module, a MIDI hard sound source and a speaker; the second communication module and the speaker are connected to the MIDI hard sound source;

[0020] The second communication module establishes a communication connection with the first communication module;

[0021] The MIDI hard sound source is used to convert the MIDI messages received by the second communication module into corresponding sound sources and play them on the speaker.

[0022] For further optimization, the microcontroller is further used to calibrate the height of the C key when the hand-held electronic musical instrument is started.

[0023] For further optimization, it further includes a staff sticker, and a number of spaced staff lines are provided on the staff sticker.

[0024] Different from the prior art, in the above technical solution, the hand-held electronic musical instrument is worn on the user's hand through the wearing structure on the housing. When the user plays through the hand-held electronic musical instrument, by facing the distance sensor towards the reference plane and controlling the distance between the distance sensor and the reference plane, the microcontroller obtains the musical note corresponding to the distance information fed back by the distance sensor, then generates a MIDI message in a standard format, and sends the MIDI message to the corresponding terminal for playing through the first communication module. It can be played by wearing the hand-held electronic musical instrument on the hand, occupying a small space and being convenient for the performer to carry. At the same time, by wearing the hand-held electronic musical instrument on the hand, different pitch musical notes can be played through the up and down movements of the hand, and the corresponding performance music can be generated by using the change of spatial distance to directly show the melody line of the music piece, improving the experience of the performer.

[0025] The above description of the invention content is only an overview of the technical solution of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of this application, and then be able to implement it based on the content described in the text of the specification and the drawings, and in order to make the above objects, other objects, features, and advantages of this application more easily understood, the following will be described in conjunction with the specific embodiments of this application and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the specific embodiments of this application and other related contents, and should not be considered as a limitation to this application.

[0027] In the drawings of the specification:

[0028] Figure 1 FIG. is a schematic structural diagram of a hand-held electronic musical instrument based on wireless communication described in the specific embodiment;

[0029] Figure 2 FIG. is another schematic structural diagram of a hand-held electronic musical instrument based on wireless communication described in the specific embodiment;

[0030] Figure 3 FIG. is another schematic structural diagram of a hand-held electronic musical instrument based on wireless communication described in the specific embodiment;

[0031] Figure 4 FIG. is a schematic flowchart of a first performance mode of a hand-held electronic musical instrument based on wireless communication described in the specific embodiment;

[0032] Figure 5 FIG. is a schematic flowchart of a second performance mode of a hand-held electronic musical instrument based on wireless communication described in the specific embodiment.

[0033] The descriptions of the reference numerals involved in the above drawings are as follows:

[0034] 100, Hand-held electronic musical instrument

[0035] 110, Microcontroller,

[0036] 120, Distance sensor,

[0037] 130, First communication module,

[0038] 131, Bluetooth module,

[0039] 140, Power supply module,

[0040] 141, Lithium battery,

[0041] 142, Power management unit,

[0042] 151. Touch sensor;

[0043] 200. Musical score sticker. Detailed implementation manners

[0044] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, the following will be described in detail with reference to the specific examples listed and in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0045] Referring to "embodiments" in this text means that the specific features, structures or characteristics described in combination with the embodiments can be included in at least one embodiment of this application. The term "embodiment" that appears in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0046] Unless otherwise defined, the meanings of the technical terms used in this text are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of relevant terms in this text is only to describe specific embodiments and is not intended to limit this application.

[0047] In the description of this application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this text generally represents an "or" logical relationship between the associated objects before and after.

[0048] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary or secondary, or order relationship between these entities or operations.

[0049] Without more limitations, in this application, the expressions such as "including", "comprising", "having" or other similar expressions used in the statements are intended to cover non-exclusive inclusion. These expressions do not exclude that there may be other elements in the process, method or product including the said elements, so that the process, method or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to this process, method or product.

[0050] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself; expressions such as "above", "below", "within", etc. are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "multiple" is two or more (including two), and similar expressions related to "many" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically defined.

[0051] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the drawings. It is only for the convenience of describing the specific embodiments of this application or for the reader to understand, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of this application.

[0052] Unless otherwise clearly specified or limited, in the description of the embodiments of this application, the terms such as "installed", "connected", "connected to", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which this application belongs, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0053] Please refer to Figures 1-3 , this embodiment provides a hand-held electronic musical instrument 100 based on wireless communication, including a housing, a distance sensor 120, a microcontroller 110, and a first communication module 130;

[0054] The distance sensor 120, the microcontroller 110, and the first communication module 130 are arranged in the housing;

[0055] The surface of the housing is provided with a wearing structure, and the hand-held electronic musical instrument is worn on the user's hand through the wearing structure;

[0056] The distance sensor 120 is electrically connected to the microcontroller 110, and the distance sensor 120 is used to detect the distance between the electronic musical instrument and the reference plane;

[0057] The microcontroller 110 is used to calculate the note corresponding to the detected distance between the electronic musical instrument and the reference plane by the distance sensor 120, and generate a MIDI message in a standard format;

[0058] The first communication module 130 is electrically connected to the microcontroller 110, and the first communication module 130 is used to send the MIDI message generated by the microcontroller 110.

[0059] MIDI (Musical Instrument Digital Interface) is the most widely used music standard format in the music arrangement field and can be called "sheet music that a computer can understand". It records music with digital control signals of notes. A complete MIDI music is only dozens of KB in size and can contain dozens of music tracks. Almost all modern music is produced and synthesized using MIDI plus a sound library. MIDI transmits not sound signals, but instructions such as notes and control parameters. It indicates what a MIDI device should do and how to do it, such as which note to play and what volume to use. They are uniformly represented as MIDI messages.

[0060] The hand-held electronic musical instrument 100 is worn on the user's hand through the wearing structure on the housing. When the user plays the hand-held electronic musical instrument, by facing the distance sensor 120 towards the reference plane and controlling the distance between the distance sensor 120 and the reference plane, the microcontroller 110 obtains the note corresponding to the distance information fed back by the distance sensor 120, then generates a MIDI message in a standard format, and sends the MIDI message to the corresponding terminal for playback through the first communication module 130. The user can play by wearing the hand-held electronic musical instrument on the hand, which takes up little space and is convenient for the performer to carry. At the same time, by wearing the hand-held electronic musical instrument on the hand, different pitches of notes can be played through the up and down movements of the hand, and the corresponding performance music can be generated by using the change of spatial distance, directly showing the melody line of the music piece and improving the user experience of the performer. Among them, when the reference plane is the ground or a tabletop, the distance detected by the distance sensor 120 represents the height of the distance sensor 120 from the reference plane, that is, different pitches of notes are played through the up and down movements of the hand.

[0061] In some embodiments, the distance sensor 120 is a laser ranging sensor, an ultrasonic ranging sensor, or a microwave ranging sensor. The basic principle of a laser ranging sensor for measuring distance by using laser transmission time is to determine the target distance by measuring the time required for the laser to travel to and from the target. Although the principle of time-of-flight laser ranging is simple and the structure is simple; an ultrasonic ranging sensor adopts the principle of ultrasonic echo ranging, uses precise time difference measurement technology to detect the distance between the sensor and the target object, and adopts a small-angle, small-blind-zone ultrasonic sensor, which has the advantages of accurate measurement, non-contact, waterproof, corrosion-resistant, and low cost. A microwave ranging sensor uses electromagnetic waves with a microwave wavelength of 0.8 to 10 cm as the carrier for ranging. The microwave ranging sensor emits a microwave signal in a directional manner by a microwave transmitter. When encountering the object to be measured, part of the microwave signal is absorbed by the detected object, and part is reflected. The received antenna receives the microwave signal reflected by the object to be measured, detects its electromagnetic parameters, and then processes them by a measurement circuit to achieve microwave detection. Microwave ranging has the advantages of high measurement accuracy, fast response speed, good directivity, and non-contact

[0062] Please refer to Figure 2 , in some embodiments, the first communication module 130 is a Bluetooth module 131. When the hand-held electronic musical instrument generates a MIDI message, the microcontroller 110 sends the generated MIDI message to the MIDI-enabled APP on the mobile terminal for playback through the Bluetooth module 131.

[0063] Please refer to Figure 2 , in some embodiments, it further includes a trigger module. The trigger module is disposed on the side of the housing and is electrically connected to the microcontroller 110;

[0064] The trigger module is used to trigger the microcontroller 110 to generate musical notes and MIDI messages.

[0065] By providing a trigger module on the hand-held electronic musical instrument, the microcontroller 110 will only generate corresponding musical notes and MIDI messages according to the distance information detected by the distance sensor 120 after detecting that the trigger module is triggered. This avoids the situation where the hand-held electronic musical instrument makes a sound due to the unconscious operation of the performer. Among them, the trigger module is a touch sensor 151. The touch sensor 151 is a touch switch. Touch switches are classified by switch principle into resistive touch switches and capacitive touch switches, and are classified by wiring method into single-phase wire touch switches and two-wire touch switches (phase wire and neutral wire). In other embodiments, the trigger module can also adopt a button sensor.

[0066] Please refer to Figures 1-2In some embodiments, a power supply module 140 is further included, and the power supply module 140 is connected to the first communication module 130, the distance sensor 120, and the microcontroller 110. Among them, the power supply module 140 includes a lithium battery 141 and a power management unit 142, and the lithium battery 141 is connected to the first communication module 130, the distance sensor 120, and the microcontroller 110 through the power management unit 142.

[0067] The power supply module 140 supplies power to the microcontroller 110, the first communication module 130, and the distance sensor 120. Among them, the power supply module 140 includes a lithium battery 141 and a power management unit 142. After the output voltage of the lithium battery 141 is regulated by the power management unit 142, it supplies power to the microcontroller 110. At the same time, the power management module is also used to charge the lithium battery 141 with an external power supply.

[0068] In some embodiments, a MIDI sound source product is further included;

[0069] The MIDI sound source product includes a second communication module, a MIDI hard sound source, and a speaker; the second communication module and the speaker are connected to the MIDI hard sound source;

[0070] The second communication module establishes a communication connection with the first communication module 130;

[0071] The MIDI hard sound source is used to convert the MIDI message received by the second communication module into a corresponding sound source and play it on the speaker.

[0072] The MIDI sound source product refers to a device that plays a sound source carrier. When the MIDI sound source product receives the MIDI message sent by the first communication module 130, the MIDI hard sound source controls the speaker to play the corresponding performance music according to the received MIDI message.

[0073] In some embodiments, the microcontroller 110 is further used to calibrate the height of the C key when the hand-held electronic musical instrument is started. Please refer to Figure 3, in order to make the notes played by the hand-held electronic musical instrument more accurate, when the hand-held electronic musical instrument is started, the microcontroller 110 calibrates the height corresponding to the C key. Among them, the microcontroller 110 sends calibration information to external devices, such as mobile phones or MIDI sound source products, through the first communication module 130. When the user receives the calibration information, after placing the hand-held electronic musical instrument at a reasonable position from the reference plane, the microcontroller calibrates the current distance information as the C key. Among them, there is also a staff sticker 200, and a number of spaced staff lines are provided on the staff sticker 200. When the user calibrates the C key, by placing the hand at the position corresponding to the C key on the staff sticker 200, it is convenient to calibrate the C key. At the same time, the user can more accurately determine the height corresponding to each note according to the staff lines on the staff sticker 200. Among them, the staff sticker 200 can be pasted on the wall, the interval between the staff lines on the staff sticker 200 is 10 cm, and the staff lines of the staff sticker 200 cover three octaves, and this coverage range is within the comfortable range of the up and down swing of the human hand.

[0074] This hand-held electronic musical instrument has two playing modes, such as Figure 4 shown in playing mode 1, playing is controlled by the touch sensor 151. Wear the hand-held electronic musical instrument on the palm position, point the touch sensor 151 at the thumb, and a note is emitted each time the thumb touches the touch sensor 151, so that the generation of notes has better controllability. The specific process is as follows:

[0075] First, place the hand at the middle C key position of the staff sticker 200 to calibrate the height, and then the microcontroller detects whether the touch sensor 151 is triggered. If it is triggered, the height is detected by the distance sensor 120, the note corresponding to the current height is calculated, and then the MIDI message corresponding to playing this note is generated and sent to the corresponding playback device for playback through the first communication module 130.

[0076] Such as Figure 5 shown in playing mode 2, after setting the rhythm speed through the touch sensor 151, such as setting the beat of 16th notes, when playing through the hand-held electronic musical instrument, the microcontroller 110 will read the data of the distance sensor 120 at each 16th note beat point and generate corresponding notes for playback. In this mode, on the basis of controlling the speed well, the player only needs to lift the hand to the position corresponding to the note on the staff sticker 200 according to the rhythm to achieve continuous playback. The specific process is as follows:

[0077] First, place the hand at the middle C position of the staff sticker 200 to calibrate the height. After the calibration is completed, the microcontroller 110 performs timing according to the set rhythm speed, such as 16th note timing. Each time the 16th note timing of the microcontroller 110 ends, it detects the height information through the distance sensor 120, calculates the note corresponding to the current height information based on the height information, then generates the MIDI message corresponding to playing this note, and sends it to the corresponding playback device for playback through the first communication module 130.

[0078] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of the present application, the patent protection scope of the present application cannot be limited thereby. Any technical solution obtained by equivalent structure or equivalent process substitution or modification based on the substantial concept of the present application and using the content recorded in the text and drawings of the specification of the present application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A hand - worn electronic musical instrument based on wireless communication, characterized in that, It includes a housing, a distance sensor, a microcontroller, and a first communication module; The distance sensor, the microcontroller, and the first communication module are arranged inside the housing; A wearing structure is provided on the surface of the housing, and the hand-held electronic musical instrument is worn on the user's hand through the wearing structure; The distance sensor is electrically connected to the microcontroller, and the distance sensor is used to detect the distance between the electronic musical instrument and a reference plane; The microcontroller is used to calculate the corresponding musical note according to the distance detected by the distance sensor between the electronic musical instrument and the reference plane, and generate a MIDI message in a standard format; The first communication module is electrically connected to the microcontroller, and the first communication module is used to send the MIDI message generated by the microcontroller; The microcontroller is further used to send calibration information to an external device through the first communication module when the hand-held electronic musical instrument is started. After obtaining the reasonable position where the user places the hand-held musical instrument at a distance from the reference plane, the height of the C key is calibrated according to the current distance.

2. The hand - worn electronic musical instrument based on wireless communication according to claim 1, characterized in that, The distance sensor is a laser ranging sensor, an ultrasonic ranging sensor, or a microwave ranging sensor.

3. The hand - worn electronic musical instrument based on wireless communication according to claim 1, characterized in that, The first communication module is a Bluetooth module.

4. The hand - worn electronic musical instrument based on wireless communication according to claim 1, characterized in that, It further includes a trigger module. The trigger module is arranged on the side of the housing, and the trigger module is electrically connected to the microcontroller; The trigger module is used to trigger the microcontroller to generate musical notes and MIDI messages.

5. The hand - worn electronic musical instrument based on wireless communication according to claim 4, characterized in that, The trigger module is a touch sensor.

6. The hand - worn electronic musical instrument based on wireless communication according to claim 1, characterized in that, It further includes a power supply module. The power supply module is connected to the first communication module, the distance sensor, and the microcontroller.

7. The hand - worn electronic musical instrument based on wireless communication according to claim 6, characterized in that, The power supply module includes a lithium battery and a power management unit. The lithium battery is connected to the first communication module, the distance sensor, and the microcontroller through the power management unit.

8. The hand - worn electronic musical instrument based on wireless communication according to claim 1, characterized in that, It further includes a MIDI sound source product; The MIDI sound source product includes a second communication module, a MIDI hard sound source, and a speaker. The second communication module and the speaker are connected to the MIDI hard sound source; The second communication module establishes a communication connection with the first communication module; The MIDI hard sound source is used to convert the MIDI message received by the second communication module into a corresponding sound source and play it on the speaker.

9. The hand - worn electronic musical instrument based on wireless communication according to claim 1, characterized in that, It further includes a staff sticker, and a number of spaced staff lines are provided on the staff sticker.

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