CN203689897U

CN203689897U - Electric blowpipe

Info

Publication number: CN203689897U
Application number: CN201420074610.1U
Authority: CN
Inventors: 沈博侃; 徐志明; 张琦; 吴菁; 蔡佳杰
Original assignee: Zhejiang Textile and Fashion College
Current assignee: Zhejiang Textile and Fashion College
Priority date: 2014-02-21
Filing date: 2014-02-21
Publication date: 2014-07-02
Anticipated expiration: 2024-02-21

Abstract

The utility model discloses an electric blowpipe including a blowpipe body. The upper end of the blowpipe body is provided with a blowing mouth and control press keys. The blowpipe body is inside provided with a main control chip and an air pressure sensor. The air pressure sensor is arranged in a position exactly opposite to the blowing mouth. The main control chip is in signal connection with a horn through a signal amplifying chip. The main control chip is in signal connection with the air pressure sensor and the control press keys. The control press keys include playing press keys and a volume adjusting press key. The electric blowpipe provided by the utility model has advantages of being simple in structure and convenient to blow. Pressure of air blown out by a blower can be sensed through the air pressure sensor, so that sound having different lengths can be given out and signal amplification can be realized through the signal amplifying chip. Finally the horn gives out sound. The control press keys include the playing press keys and a volume adjusting press key. The play press key is used for playing different notes and the volume adjusting press key is used for basic tone adjustment.

Description

A kind of electronics blowpipe

Technical field

The utility model relates to musical instrument manufacturing technology field, especially refers to electronic musical instrument manufacturing technology field, particularly a kind of electronics blowpipe.

Background technology

Musical instrument, as the utensil of musical performance, refers to in all sorts of ways and plays out the instrument of certain musical note or rhythm.Divide and can be divided into percussion instrument, plucked instrument and blowing instrument according to playing mode.Wherein, blowing instrument is that player passes through to blow in musical instrument, make air produce vibration sound, and in the cavity of musical instrument, vibe and make sound amplify.The height of sounding depends on the frequency of vibration, and the quality of a musical instrument workmanship can affect tone color and accuracy in pitch, and therefore traditional musical instrument is higher to the requirement of doing manual work, and the production cycle of musical instrument is also long.

Electronic musical instrument is to trigger electronic signal by player, the musical instrument that makes it utilize electronics synthetic technology or Sampling techniques to sound by electroacoustic equipment; It utilizes electronic component to produce the signal of corresponding frequencies and sends the sound of different pitches.

Traditional wind instrument, once its structure is changeless after completing; Therefore the defect that, after existence making, this tune can not change.And conventional tube musical instrument range scope can only, in 3 to 3 half 8 degree, just be difficult to play for the larger music of range scope substantially.

Summary of the invention

Technical problem to be solved in the utility model is the present situation for prior art, provides simple in structure, plays wind instruments conveniently, and can change a kind of electronics blowpipe of basic tone.

The utility model solves the problems of the technologies described above adopted technical scheme:

A kind of electronics blowpipe, comprise blowpipe body, blowpipe body upper end is provided with plays wind instruments mouth and controls button, wherein, in blowpipe body, be provided with main control chip and baroceptor, this baroceptor is just arranged at the position of playing wind instruments mouthful described, and main control chip is connected with audible warning through signal amplification chip, and this main control chip is connected with baroceptor and control push button signalling; Control button and comprise performance button and tone regulating key.

For optimizing technique scheme, the concrete measure of taking also comprises:

Above-mentioned performance button comprises do key, re key, mi key, fa key, so key, the la key that is distributed in successively from top to bottom described blowpipe body front and the si key that is arranged at the described blowpipe body back side.

Above-mentioned performance button also comprises half key that is arranged at the described blowpipe body back side, and half key is arranged at the below of si key.

Above-mentioned tone regulating key is arranged at the back side of described blowpipe body, and it is positioned at the top of si key.

Above-mentioned main control chip is STM32F051C8T6 chip.

Above-mentioned baroceptor is MD-PS002 sensor.

Above-mentioned control button is touch key-press.

On above-mentioned blowpipe body, be provided with for the charactron of display base tone and the light emitting diode for showing that correspondence position control button is pressed; Charactron and light emitting diode are electrically connected with described main control chip.

Above-mentioned charactron is the 8 segment numeral pipes of 0.8 inch.

Above-mentioned blowpipe body lower end expansion is shaped with horn opening.

Compared with prior art, a kind of electronics blowpipe of the utility model, in blowpipe body, be provided with main control chip and baroceptor, this baroceptor is arranged at just to described position of playing wind instruments mouth, main control chip is connected with audible warning through signal amplification chip, and this main control chip is connected with baroceptor and control push button signalling; It responds to by baroceptor the air pressure that bassoonist blows out, and sends the sound of the different duration of a sound, and after signal being amplified through signal amplification chip, is finally sounded by loudspeaker.

Control button and comprise performance button and tone regulating key; Play button for playing the sound of different notes, tone regulating key is for the adjusting of basic tone, and it changes basic tone by the base frequency that changes main control chip generation.The pwm signal of the different frequency that the accuracy in pitch that this electronics blowpipe is sounded is produced by main control chip determines, more accurate compared with traditional instrument on accuracy in pitch.

The described blowpipe body back side is provided with half key, and the range that arranges of half key is more further widened.

In addition, control button and be touch key-press, greatly improved serviceable life and the sensitivity of button.

Brief description of the drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the backsight configuration state figure of Fig. 1;

Fig. 3 is one of sectional structure schematic diagram of Fig. 1;

Fig. 4 be Fig. 1 sectional structure schematic diagram two;

Fig. 5 is block diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

Embodiment as shown in Figures 1 to 5,

Figure grade explanation: blowpipe body 1, play wind instruments mouthfuls 11, horn opening 12, main control chip 2, baroceptor 3, signal amplification chip 4, loudspeaker 5, control button 6, do key 61, re key 62, mi key 63, fa key 64, so key 65, la key 66, si key 67, half key 68, tone regulating key 69, charactron 71, light emitting diode 72.

As shown in Figures 1 to 5,

A kind of electronics blowpipe of the utility model, comprise blowpipe body 1, blowpipe body 1 upper end is provided with plays wind instruments mouth 11 and controls button 6, wherein, in blowpipe body 1, be provided with main control chip 2 and baroceptor 3, this baroceptor 3 is just arranged at described mouthfuls 11 the position of playing wind instruments, and main control chip 2 is connected with loudspeaker 5 signals through signal amplification chip 4, and this main control chip 2 is connected with baroceptor 3 and control button 6 signals; Control button 6 and comprise performance button and tone regulating key 69.

In embodiment, play button and comprise do key 61, re key 62, mi key 63, fa key 64, so key 65, the la key 66 that is distributed in successively from top to bottom described blowpipe body 1 front and the si key 67 that is arranged at described blowpipe body 1 back side.

In embodiment, play button and also comprise that half key 68, half keys 68 that are arranged at described blowpipe body 1 back side are arranged at the below of si key 67.Can on do, re, mi, fa, so, la, seven roots of si, add scale half by half key 68, thereby make range wider.

In embodiment, tone regulating key 69 is arranged at the back side of described blowpipe body 1, and it is positioned at the top of si key 67.

In embodiment, main control chip 2 is STM32F051C8T6 chip.STM32F051C8T6 chip has hardware touch key-press measuring ability (TSC) and can be used for detecting control button 6 of the present utility model; The modulus measuring ability (A/D) of this chip can be used for detecting the force value of baroceptor 3; Thereby it comprises the sound that multiple high performance timers can be used for producing pwm signal and simulate various frequencies; 39 I/O mouths can meet the demand of the related outward element of the utility model completely; And can realize real-time detection baroceptor 3 completely and control the state variation of button 6 up to the dominant frequency of 48MHZ.

In embodiment, baroceptor 3 is MD-PS002 sensor.

In embodiment, control button 6 and be touch key-press.Adopt touch key-press, can greatly improve serviceable life and the sensitivity of button.

In embodiment, on blowpipe body 1, be provided with for the charactron 71 of display base tone and the light emitting diode 72 for showing that correspondence position control button 6 is pressed; Charactron 71 and light emitting diode 72 are electrically connected with described main control chip 2.In the time that a certain control button 6 is pressed, its corresponding light emitting diode 72 just can be luminous, to represent that this control button 6 has been pressed.

In embodiment, charactron 71 is the 8 segment numeral pipes of 0.8 inch.

In embodiment, the 1 lower end expansion of blowpipe body is shaped with horn opening 12; The setting of horn opening 12 is more conducive to amplification and the diffusion of sound.

Principle of work:

The frequency of sound has determined the height of sound, and this electronics blowpipe is to utilize main control chip 2 to produce the PWM square wave of different frequency, then through signal amplification chip 4, signal is amplified, then is sounded by loudspeaker 5; And the PWM square wave that main control chip 2 produces different frequency is blown and is responded to triggering by baroceptor 3 from playing wind instruments mouthfuls 11 by bassoonist.

Seven keynote C-D-E-F-G-A-B that adjust at C represent respectively do, re, mi, fa, so, la, the si in C tune, and 1 in numbered musical notation is to 7; In science tone charactery, A4 represents middle pitch la, and its frequency is 440 Hz, the la of an octave and A5 represents to rise, and its frequency is 880Hz, is the twice of A4.The sound of same musical alphabet in adjacent tone, the frequency between them is twice relation, therefore changes the basic tone of electronics blowpipe, the elementary audio of the PWM square wave that only need setting main control chip 2 produces is very convenient.

Playing wind instruments before beginning, set basic tone by tone regulating key 69, basic tone is cyclic switching in C-D-E-F-G-A-B tone, and often, by a tone regulating key 69, root modulation switches to next basic tone.Adjust as present root is adjusted to C, after a tone regulating key 69, adjust just switch to D, when switching, charactron 71 can show current basic tone, so that the clearly current basic tone of bassoonist.

After basic tone is determined, determine the base frequency of the pwm signal that main control chip 2 produces, the sound that this base frequency sends is do, play wind instruments in process, respond to by baroceptor 3 length that bassoonist blows afloat and determine the duration of a sound, and point and press performance button by bassoonist, it is do key 61, re key 62, mi key 63, fa key 64, so key 65, la key 66, si key 67 and half key 68, on base frequency, increase frequency or reduce frequency and send do, re, mi, fa, so, la, si, and the do of ottava alta, re, mi, fa, so, la, si, the do of high two octaves, re, mi, fa, so, la, si, and the do of a low octave, re, mi, fa, so, la, si, thereby realize playing wind instruments of the interior melody of 4 octaves.

Generally, the range of 4 octaves can meet the performance of most melodies, as expansion, just can further increase the range of this electronics blowpipe by increase and decrease frequency.Be to be decided by the AD value of baroceptor 3 in fact because which octave is the music of current performance be, and the PWM frequency producing by main control chip 2 of sending of sound determine.The detected value of gas sensor 3 has determined main control chip 2 what sound of output with the detected value of playing button.After the AD value of baroceptor is deducted to standard pressure value, be divided into 4 parts, just can obtain the range of 4 octaves.And be divided into 5 parts or 6 parts after the AD value of baroceptor is deducted to standard pressure value, just can obtain the range of 5 octaves or 6 octaves.

Most preferred embodiment of the present utility model is illustrated, and the various variations of being made by those of ordinary skill in the art or remodeling can not depart from scope of the present utility model.

Claims

1. an electronics blowpipe, comprise blowpipe body (1), described blowpipe body (1) upper end is provided with plays wind instruments mouthful (11) and controls button (6), it is characterized in that: in described blowpipe body (1), be provided with main control chip (2) and baroceptor (3), this baroceptor (3) is arranged at just to described position of playing wind instruments mouthful (11), described main control chip (2) is connected with loudspeaker (5) signal through signal amplification chip (4), this main control chip (2) is connected with baroceptor (3) and control button (6) signal, described control button (6) comprises plays button and tone regulating key (69).

2. a kind of electronics blowpipe according to claim 1, is characterized in that: described performance button comprises the si key (67) that is distributed in successively from top to bottom described blowpipe body (1) positive do key (61), re key (62), mi key (63), fa key (64), so key (65), la key (66) and is arranged at described blowpipe body (1) back side.

3. a kind of electronics blowpipe according to claim 2, it is characterized in that: described performance button also comprises half key (68) that is arranged at described blowpipe body (1) back side, and described half key (68) is arranged at the below of si key (67).

4. a kind of electronics blowpipe according to claim 3, is characterized in that: described tone regulating key (69) is arranged at the back side of described blowpipe body (1), and it is positioned at the top of si key (67).

5. a kind of electronics blowpipe according to claim 4, is characterized in that: described main control chip (2) is STM32F051C8T6 chip.

6. a kind of electronics blowpipe according to claim 5, is characterized in that: described baroceptor (3) is MD-PS002 sensor.

7. a kind of electronics blowpipe according to claim 6, is characterized in that: described control button (6) is touch key-press.

8. a kind of electronics blowpipe according to claim 7, is characterized in that: on described blowpipe body (1), be provided with for the charactron (71) of display base tone and the light emitting diode (72) for showing that correspondence position control button (6) is pressed; Described charactron (71) and light emitting diode (72) are electrically connected with described main control chip (2).

9. a kind of electronics blowpipe according to claim 8, is characterized in that: described charactron (71) is the 8 segment numeral pipes of 0.8 inch.

10. a kind of electronics blowpipe according to claim 9, is characterized in that: described blowpipe body (1) lower end expansion is shaped with horn opening (12).