CN210535054U - Wind instrument teaching system with multi-sensor fusion - Google Patents

Wind instrument teaching system with multi-sensor fusion Download PDF

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Publication number
CN210535054U
CN210535054U CN201921422191.5U CN201921422191U CN210535054U CN 210535054 U CN210535054 U CN 210535054U CN 201921422191 U CN201921422191 U CN 201921422191U CN 210535054 U CN210535054 U CN 210535054U
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module
teaching
power supply
chip
sensor
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CN201921422191.5U
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张鑫
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Qingqing Ziyi Beijing Education Technology Co ltd
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Qingqing Ziyi Beijing Education Technology Co ltd
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Abstract

The utility model discloses a multi-sensor fusion wind instrument teaching system, which comprises a control module, a WIFI module, a signal acquisition module, a system power supply module and a PC end with a music score teaching module, an internet module, a music score playing module and a playing teaching module; the signal acquisition module comprises a sensor module and a signal amplification module, wherein the sensor module comprises a human body induction sensor and a sound pickup arranged on the outer side of a clarinet lower end pipe; the control module adopts an Arduino UNO development board; the system power supply module comprises a charging submodule, a power supply conversion submodule and a power switch. The utility model discloses be favorable to the better current level of realizing oneself of student and constantly improve, practice thrift teacher's resource, alleviate teacher's teaching pressure, improved teaching level and efficiency, and the range of application is extensive. The utility model is suitable for a music teaching device technical field.

Description

Wind instrument teaching system with multi-sensor fusion
Technical Field
The utility model belongs to the technical field of the music teaching device, a musical instrument intelligence teaching system is related to, the wind instrument teaching system of concretely relates to multisensor integration.
Background
The current parents increasingly pay more attention to the all-round development of children, and hope that children can promote self competitiveness through the cultivation of hobby while paying attention to the learning achievement of children, and many parents can choose to let children learn a musical instrument.
Only some electronic organ teaching systems or music singing listening teaching systems exist in the market at present, no related intelligent system of a wind instrument exists, some film pressure sensors, sound pick-up devices and the like are installed on the musical instrument of the existing musical instrument teaching systems, however, the musical instrument learning needs many skills and detailed actions, an evaluation system for evaluating students only by detecting the pressure values of keys and played audio data is not perfect, and a teaching evaluation system for the wind instrument is urgently needed in the market in order to be beneficial to better recognizing the existing level and progress direction of the students.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wind instrument teaching system of multisensor fusion has carried out the repacking to the sensor of current musical instrument teaching system installation on the musical instrument to perfect the evaluation system, gather the evaluation to data information such as student's detail action, be favorable to the better current level of realization oneself of student and the direction of progress.
The utility model discloses a realize above-mentioned purpose, the technical scheme who adopts as follows:
the multi-sensor fusion wind instrument teaching system comprises a control module, a WIFI module, a signal acquisition module, a system power supply module and a PC (personal computer) end with a music score teaching module, an internet module, a music score playing module and a playing teaching module; the signal acquisition module comprises a sensor module and a signal amplification module, the sensor module comprises a human body induction sensor and a pickup arranged on the outer side of a lower end pipe of the clarinet, the human body induction sensor comprises a conductive copper foil arranged at a pressing hole of the wind instrument and a QM301IC chip arranged on the outer side of the lower end pipe of the wind instrument, and the conductive copper foil is connected with an input interface of the QM301IC chip through a lead; the sound pick-up comprises a mini microphone and an LM358 amplifier, and the mini microphone is connected with an input interface of the LM358 amplifier through a lead; the control module adopts an Arduino UNO development board, a signal input interface of the development board is connected with a signal output interface of the signal acquisition module through a lead, and a serial communication interface is connected with a receiving interface of a WIFI module of an ESP8266EX chip adopting Lexin electronics through a lead; the system power supply module comprises a charging submodule, a power supply conversion submodule and a power switch, wherein the charging submodule adopts a CN3052A chip, and the power supply conversion submodule adopts an AS1117-5.0 chip and an AS1117-3.3 chip.
Since the technical scheme is adopted, compared with the prior art, the utility model, the beneficial effect who gains is:
the human body induction sensor of the multi-sensor fusion wind instrument teaching system adopts the latest generation charge detection technology, the position and the time when the fingers approach or touch the induction surface are determined by utilizing the charge level generated between the fingers of an operator and the conductive copper foil, the detailed actions played by students can be detected, and the copper foil is very thin, so the original form of the musical instrument is ensured to the maximum extent, and the sounding of the musical instrument is not influenced; the sound pick-up adopts mini microphone, LM358 amplifier amplification signal, finally spreads out audio signal, has guaranteed that the volume of sound pick-up is little enough, does not influence the musical instrument sound production. Meanwhile, the PC side analyzes and evaluates the data information acquired by the signal acquisition module, so that students can better recognize the current level of the students and continuously improve the current level, the teacher resource is saved, the teaching pressure of the teacher is relieved, the teaching level and the teaching efficiency are improved, and the application range is wide.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a circuit diagram of the body-sensing sensor of the present invention;
fig. 3 is a circuit diagram of the sound pickup of the present invention;
fig. 4 is a block diagram of the PC end module of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the embodiments described herein are for purposes of illustration and understanding only and are not intended to limit the invention.
Embodiment wind instrument teaching system with multi-sensor fusion
The structural block diagram of this embodiment is shown in fig. 1, and multi-sensor fusion's wind instrument teaching system includes control module, WIFI module, signal acquisition module, system power module and has music book teaching module, internet module, music book play module, plays the PC end of teaching module.
The signal acquisition module comprises a sensor module and a signal amplification module, the sensor module comprises a human body induction sensor and a pickup, the human body induction sensor comprises a conductive copper foil arranged at a pressing hole of the wind instrument and a QM301IC chip arranged on the outer side of a lower end pipe of the wind instrument, the conductive copper foil is connected with an input interface of the QM301IC chip through a lead, a circuit diagram is shown in figure 2, signals acquired by the human body induction sensor are digital signals represented by high and low levels, and the digital signals are transmitted into the control module through a digital signal input interface of the control module; the sound pick-up comprises a mini microphone and an LM358 amplifier, the mini microphone is connected with an input interface of the LM358 amplifier through a lead, a circuit diagram is shown in figure 3, the sound pick-up converts a sound signal into an electric signal with constantly changing current and voltage through an electret at the foremost end of a circuit, the LM358 amplifier amplifies the electric signal into an analog signal capable of reaching a sound collection standard, and the analog signal is sent to the control module through an analog signal input interface of the control module at extremely high change frequency. The control module is internally provided with an analog-to-digital conversion circuit connected with an analog signal input interface, and the control module has the function that analog signals are converted into digital signals, and the converted digital signals can be sent to a PC (personal computer) end after being arranged and stored according to a time sequence.
The control module adopts an Arduino UNO development board, a signal input interface of the development board is connected with a signal output interface of the signal acquisition module through a wire to receive data information acquired by the signal acquisition module, a serial communication interface is connected with a receiving interface of the WIFI module through a wire to send data information transmitted to the control module by the signal acquisition module to the WIFI module.
The WIFI module adopts an ESP8266EX chip of Lexin electronics, a Tensiica L10632-bit microcontroller is arranged in the ESP8266EX chip, ultra-low power consumption and 16-bit RSIC are achieved, and the clock speed can reach 160 MHz at most. An ESP-01 module with an ESP8266EX chip as a core is provided with a WIFI protocol stack which is packaged completely, the existing WIFI protocol stack only uses 20% of MIPS, and other modules can be used for user programming and development and support a real-time operating system.
The system power supply module comprises a charging submodule, a power supply conversion submodule and a power switch, wherein the charging submodule charges the lithium battery through a CN3052A core chip and a peripheral circuit; the power supply conversion submodule converts the power supply of a direct current 7.2V battery into direct current 5V through the AS1117-5.0 chip, and then converts the direct current 5V into direct current 3.3V through the AS1117-3.3 chip to supply power for the control module, the WIFI module and the signal acquisition module; and the power switch is used for switching on and off the power supply of the system power supply module.
The structural block diagram of each module on the PC end is shown in fig. 4, the music score teaching module includes a whiteboard operation module and an adjustment module, the whiteboard operation module is used to establish a whiteboard library, a mapping between a function icon and a corresponding function attribute value is established in the whiteboard library, the function icon is displayed on the function panel, and an editing operation is performed on a music score in an editing page, the editing operation includes but is not limited to an electronic pen, an eraser, and an insertion file; the adjusting module is used for constructing mutual mapping between a staff table and the holes of the wind instrument, calling a whiteboard library established in the whiteboard operating module to mark and explain a teaching page, establishing a music theory library at the same time, constructing mapping between music theory icons and corresponding attribute values in the music theory library, displaying the music theory icons on a music theory panel, and adjusting the virtual holes, the tone of the musical notes or the tone color of the musical notes; the internet module is used for entering an internet interface to search and query related knowledge materials; the playing teaching module comprises a musical instrument selection module, a signal receiving module, a music score generation module and a comprehensive evaluation module; the signal receiving module is used for receiving data information sent by the control module through communication with the WIFI module through the serial communication interface; the music score generation module generates corresponding music scores according to the sequence generated by the data information, the interval time is marked between every two notes, then the music scores are stored as json files, the teacher can play the songs to be learned by the students in advance during lessons preparation, and the music scores are stored as standard versions through the music score generation module in the playing teaching module; the comprehensive evaluation module comprises operation evaluation, sound evaluation and comprehensive evaluation, the operation evaluation is compared with standard version data according to data information acquired by the human body induction sensor, evaluation is given, and positions with irregular student actions are marked in a music score; the sound evaluation is compared with the standard version data according to the data information collected by the sound pick-up, and evaluation is given; the comprehensive evaluation gives a score value to the playing of the students comprehensively according to the combination of the operation evaluation and the sound evaluation; the music score playing module comprises a musical instrument selection module, a music piece selection module, a mode selection module and a playing module, wherein the mode selection module is used for selecting the tone marks of the music scores, the playing module calls json files in the music score generation unit, the outermost layer of music score data is circulated, the data of the compound music score table and the bar data in each row are circulated, the note data are circulated in the bar data, the MIDI value of the current note is obtained through the pitch data of the note, the tone marks of the current music score and the tone marks selected by the current user, the note is played through the MIDI Api, highlight processing is performed on an interface through the currently played note data, and meanwhile, after the MIDI value of the note is obtained, the virtual flute corresponding to the MIDI value is found from the virtual flute hole and is subjected to highlight processing.
It should be noted that the above description is only an embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made therein, and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. Many sensors integration wind instrument teaching system, its characterized in that: the system comprises a control module, a WIFI module, a signal acquisition module, a system power supply module and a PC (personal computer) end with a music score teaching module, an internet module, a music score playing module and a playing teaching module;
the signal acquisition module comprises a sensor module and a signal amplification module, the sensor module comprises a human body induction sensor and a pickup arranged on the outer side of a lower end pipe of the clarinet, the human body induction sensor comprises a conductive copper foil arranged at a pressing hole of the wind instrument and a QM301IC chip arranged on the outer side of the lower end pipe of the wind instrument, and the conductive copper foil is connected with an input interface of the QM301IC chip through a lead; the sound pick-up comprises a mini microphone and an LM358 amplifier, and the mini microphone is connected with an input interface of the LM358 amplifier through a lead;
the control module adopts an Arduino UNO development board, a signal input interface of the development board is connected with a signal output interface of the signal acquisition module through a lead, and a serial communication interface is connected with a receiving interface of a WIFI module of an ESP8266EX chip adopting Lexin electronics through a lead;
the system power supply module comprises a charging submodule, a power supply conversion submodule and a power switch, wherein the charging submodule adopts a CN3052A chip, and the power supply conversion submodule adopts an AS1117-5.0 chip and an AS1117-3.3 chip.
CN201921422191.5U 2019-08-29 2019-08-29 Wind instrument teaching system with multi-sensor fusion Active CN210535054U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921422191.5U CN210535054U (en) 2019-08-29 2019-08-29 Wind instrument teaching system with multi-sensor fusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921422191.5U CN210535054U (en) 2019-08-29 2019-08-29 Wind instrument teaching system with multi-sensor fusion

Publications (1)

Publication Number Publication Date
CN210535054U true CN210535054U (en) 2020-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN210535054U (en)

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