CN209199576U - A kind of upright piano automatic tuning system - Google Patents
A kind of upright piano automatic tuning system Download PDFInfo
- Publication number
- CN209199576U CN209199576U CN201821834054.8U CN201821834054U CN209199576U CN 209199576 U CN209199576 U CN 209199576U CN 201821834054 U CN201821834054 U CN 201821834054U CN 209199576 U CN209199576 U CN 209199576U
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- control system
- radio reception
- automatic
- tuning
- platform
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Abstract
A kind of upright piano automatic tuning system, tuning system include radio reception to when control system, automatic tuning and sound stop device, automatic latch gear, support platform.Radio reception includes radio reception microphone, comparison system, flogic system and control system to when control system.Automatic tuning and sound stop device include automatic tone tuning device and sound stop device.Automatic latch gear includes locating platform, headstock, movement lead screw, guide rail, locating support, rubber finger tip, motion platform, torque motor and mechanical arm.The key overtone of percussion is included to the radio reception microphone in when control system by radio reception; and key overtone is converted to digital signal deposit radio reception to being compared in when control system; overtone interference is generated by excluding string vibration; and then improve the accuracy of radio reception; simultaneous real-time monitoring string pulling force protects string not because tuning causes to be broken.
Description
Technical field
The utility model relates to piano tone tuning devices, and in particular to a kind of upright piano automatic tuning system.
Background technique
Artificial tuning at present is bothersome and higher cost, and the auditory experience of technical staff is relied primarily in tuning process,
Large error may be generated.Patent CN2010101138025 discloses a kind of automatic tuning device for pianos, automatic tone tuning device
Including voice input device, filter, voice input device is connected with filter, the audio signal sound wave of voice input device
Higher hamonic wave is filtered through wave filter, filter is connected with waveform amplifier, passes through waveform by the waveform of filters filter
Amplifier is amplifying, and waveform amplifier is connected with waveform integer circuit, and sound wave is after waveform integer circuit integer
It is input to central processing unit, for central processing unit according to standard frequency to frequency of sound wave processing, central processing unit controls driving circuit,
Driving circuit drives the regulating mechanism of the automatic tone tuning device.This automatic tuning device for pianos can be realized piano tone tuning
The automation of process because overtone resonates to the issuable interference of tuning when not accounting for piano playing, does not furthermore have still yet
String is broken when having protective device to prevent tuning.
Utility model content
The purpose of this utility model is to provide a kind of upright piano automatic tuning system so that piano tone tuning more subject to
Really, and string when tuning is prevented to be broken.
To realize that above-mentioned purpose of utility model, the technical solution of the utility model are as follows:
A kind of upright piano automatic tuning system, including radio reception to when control system, automatic tuning and sound stop device, from
It moves key apparatus and support platform, automatic tuning and sound stop device are connected to when control system with radio reception, automatic latch gear
It is mounted in support platform by locating platform；
Radio reception includes radio reception microphone, comparison system, flogic system and control system, radio reception Mike to when control system
Wind is located at radio reception to when control system shell exterior and is connected with comparison system, comparison system and flogic system, automatic tuning
And the torque sensor of sound stop device is connected, flogic system is connected with control system, and control system is dynamic with automatic latch gear
The torque motor of power case, automatic tuning and sound stop device is connected；
Automatic tuning and sound stop device include automatic tone tuning device and sound stop device, and automatic tone tuning device shares 88 torques
Motor, 88 torque motors are connected with control system of the radio reception to when control system respectively, each torque motor respectively with tune
Sound spanner is connected, and each spanners for attuning respectively corresponds 88 tuning pins of upright piano；
Automatic latch gear includes locating platform, headstock, movement lead screw, guide rail, locating support, rubber finger tip, movement
Platform, torque motor and mechanical arm；Headstock includes asynchronous machine, harmonic speed reducer, high-precision magnetic encoder and bus
Driver；Locating platform, movement lead screw, guide rail, locating support composition are moved forward and backward platform, and two headstocks, are led at movement lead screw
Rail composition moves left and right platform；Two headstocks are connected with control system of the radio reception to when control system respectively；Motion platform,
Torque motor, mechanical arm and rubber finger tip composition play structure；Torque motor is installed on the moving platform, and with radio reception to when
The control system of control system is connected, and torque motor drives mechanical arm rotation that rubber finger tip is made to tap keyboard completion and plays process.
Further, the radio reception microphone is connected by A/D conversion module with the comparison system.
Further, storied placement above and below the torque motor.
It further, further include torque sensor, the torque motor passes through torque sensor and the spanners for attuning phase
Even.
Compared with prior art, the utility model has the beneficial effects that
A kind of upright piano automatic tone tuning device of the utility model, structure is simple, easy to use, simplifies tuning
Journey, tuning accuracy are better than artificial tuning, can replace professional tuning technical staff completely；String shake is overcome by sound stop device
The raw overtone interference of movable property, improves and collects pitch accuracy；Pass through the torque sensor real-time monitoring tuning on spanners for attuning
The torque of spanner protects string not because tuning causes to be broken.
Detailed description of the invention
Fig. 1 is when one of the utility model embodiment upright piano automatic tone tuning device is installed on upright piano
Schematic diagram；
Fig. 2 is the structural schematic diagram of the automatic latch gear in the utility model embodiment；
Fig. 3 is the motor row Butut of the automatic tuning and sound stop device in the utility model embodiment；
Fig. 4 is the structural schematic diagram of the automatic tuning and sound stop device in the utility model embodiment；
Fig. 5 is the flow chart of one of the utility model embodiment upright piano automatic tuning method
In figure 1 above -4,1, radio reception to when control system, 2, upright piano, 3, automatic tuning and sound stop device, 3-1,
Torque motor one, 3-2, torque sensor, 3-3, spanners for attuning, 4, automatic latch gear, 4-1, locating platform, 4-2, power
Case, 4-3, movement lead screw, 4-4, guide rail, 4-5, locating support, 4-6, rubber finger tip, 4-7, motion platform, 4-8, torque motor
Two, 4-9, mechanical arm, 5, support platform.
Specific embodiment:
The utility model is described further with reference to the accompanying drawings.
Embodiment
Specific embodiment of the present utility model is described briefly with reference to the accompanying drawing.Obviously, described embodiment
Only a part of the embodiment of the utility model, rather than whole embodiments, based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
As shown in Figure 1, a kind of upright piano automatic tuning system, including radio reception to when control system 1, upright piano 2,
Automatic tuning and sound stop device 3, automatic latch gear 4, support platform 5 form, and the shell of when control system 1 is placed in radio reception
On 2 top of upright piano, before automatic tuning and sound stop device 3 are mounted on 2 toning board of upright piano, and with radio reception to when controlling
The shell of system 1 is connected, and automatic latch gear 4 is mounted in support platform 5 by locating platform 4-1, and 1. position is in Fig. 1
Mechanical arm 4-9 initial position, 2. position is to tap piano white key position, and 3. position is to tap piano black key position.
Radio reception is made of, radio reception when control system 1 radio reception microphone, comparison system, flogic system, control system
Microphone is located at radio reception to when 1 shell exterior of control system, and is connected by A/D conversion module with comparison system, comparison system
System is connected with the torque sensor 3-2 of flogic system, automatic tuning and sound stop device 3, and flogic system is connected with control system, control
System processed is connected with one 3-1 of torque motor of the headstock 4-2 of automatic latch gear 4, automatic tuning and sound stop device 3；
Fig. 2 show automatic latch gear 4, by locating platform 4-1, headstock 4-2, movement lead screw 4-3, guide rail 4-4, determines
Position bracket 4-5, rubber finger tip 4-6, motion platform 4-7, torque motor two 4-8 and mechanical arm 4-9 composition；The headstock 1
Including asynchronous machine, harmonic speed reducer, high-precision magnetic encoder and bus driver；Locating platform 4-1, movement lead screw 4-
3, guide rail 4-4, locating support 4-5 composition are moved forward and backward platform, to meet the movement needs that white black key is played in front and back, two power
Case 4-2, movement lead screw 4-3, guide rail 4-4 composition move left and right platform, to meet the movement needs that keyboard is played in left and right；Two dynamic
Power case 4-2 is connected with control system of the radio reception to when control system 1 respectively, and one controls moving forward and backward for motion platform 4-7,
The side-to-side movement of another control motion platform 4-7；Motion platform 4-7, two 4-8 of torque motor, mechanical arm 4-9 and rubber finger tip
4-6 composition plays structure, and two 4-8 of torque motor is mounted on motion platform 4-7, and is controlled by radio reception to when control system 1
Control system, two 4-8 of torque motor drive mechanical arm 4-9 rotation make rubber finger tip 4-6 tap keyboard completion play process.
Automatic tuning and sound stop device 3, are made of automatic tone tuning device and sound stop device, and automatic tone tuning device shares 88
Torque motor one 3-1,88 one 3-1 of torque motor are connected with control system of the radio reception to when control system 1 respectively, Mei Geli
One 3-1 of torque motor is connected by torque sensor 3-2 with spanners for attuning 3-3.
As shown in Figure 3 and Figure 4, each spanners for attuning respectively corresponds 88 tuning pins of upright piano, torque motor one
3-1 or more storied placement is to reduce occupied space；
Fig. 5 show the tuning method of above-mentioned upright piano automatic tone tuning device, comprising steps of
S1: removing upright piano front cover, installs automatic latch gear, automatic tuning and sound stop device, radio reception to when controlling
System processed；Radio reception is placed in upright piano top to the shell of when control system, and automatic tuning and sound stop device are mounted on vertical
Before formula piano tone tuning plate, and it is connected with shell of the radio reception to when control system, automatic latch gear is installed by locating platform
In support platform；The height of support platform, the torque motor rotational angle of automatic latch gear are adjusted, rubber finger tip is played
The dynamics of upright piano key is in the appropriate range；
S2: radio reception instructs when control system to the headstock translatory movement of automatic latch gear, transports motion platform
Move key initial position；Radio reception is to when control system to the torque motor send instructions of automatic latch gear, torque motor
It drives mechanical arm rotation primary, so that rubber finger tip is tapped keyboard primary；
S3: the key overtone of percussion is included in radio reception to the radio reception microphone in when control system, and key overtone is turned
Digital signal deposit radio reception is melted into in when control system；Radio reception is to when control system to automatic tuning and sound stop device
Only sound module issues instruction, and only the starting of sound module stops string vibration, returns to original state later；
S4: after when the position, key overtone includes 5 times, radio reception is to the contrast module in when control system by key overtone
Digital signal and the digital signal of the location criteria overtone compare, and 5 comparison differences are output to logic module；It patrols
It collects module and removes the maximum value and minimum value of difference, and judge the mean value of remaining 3 differences whether in allowed band；
S5: if remaining difference is within the allowable range, radio reception is to when control system to the headstock of automatic latch gear
Translatory movement instruction, makes motion platform move to next position of piano key, repeat the above steps S2-S4；
If remaining difference within the allowable range, is not output to control system, control of the radio reception to when control system
The mean value of acquisition is converted to the rotational angle of torque motor in automatic tuning and sound stop device by system, and output signal makes automatically
The torque motor of tuning device rotates corresponding angle, and torque motor drives spanners for attuning rotation；When spanners for attuning is completed to adjust
Afterwards, step S3-S4 is repeated, until meeting 3 remaining differences within the allowable range；Meanwhile the torque sensor on spanners for attuning
The torque of record spanners for attuning in real time, and moment information is transferred to radio reception to when control system, radio reception is to when control
The torque received is converted to tensile stress by system, and is compared with the preset string maximum tension stress in the position, if torque sensor
When the torque of the spanners for attuning of acquisition reaches the limit values, stops tuning process immediately and sound an alarm
S6: after white key tuning finishes, initial position, stop bit of the automatic latch gear motion platform away from black key are adjusted
It sets and repeats step S2-S5 and in radio reception to the pitch of when set-up of control system initial position and final position with black key number,
Until completing tuning work.
Claims (4)
1. a kind of upright piano automatic tuning system, which is characterized in that including radio reception to when control system (1), automatic tuning
And sound stop device (3), automatic latch gear (4) and support platform (5), automatic tuning and sound stop device (3) and radio reception are to when
Control system (1) is connected, and automatic latch gear (4) is mounted on support platform (5) by locating platform (4-1)；
Radio reception includes radio reception microphone, comparison system, flogic system and control system, radio reception Mike to when control system (1)
Wind is located at radio reception to when control system (1) shell exterior and is connected with comparison system, comparison system and flogic system, automatic tune
The torque sensor (3-2) of sound and sound stop device (3) is connected, and flogic system is connected with control system, control system and appliance for releasing single
The torque motor one (3-1) of the headstock (4-2) of key apparatus (4), automatic tuning and sound stop device (3) is connected；
Automatic tuning and sound stop device (3) include automatic tone tuning device and sound stop device, and automatic tone tuning device shares 88 torques
Motor one (3-1), 88 torque motors one (3-1) are connected with control system of the radio reception to when control system (1) respectively, each
Torque motor one (3-1) is connected with spanners for attuning (3-3) respectively, and each spanners for attuning respectively corresponds 88 tunings of upright piano
Peg；
Automatic latch gear (4) includes locating platform (4-1), headstock (4-2), movement lead screw (4-3), guide rail (4-4), positioning
Bracket (4-5), rubber finger tip (4-6), motion platform (4-7), torque motor two (4-8) and mechanical arm (4-9)；Headstock (4-
It 2) include asynchronous machine, harmonic speed reducer, high-precision magnetic encoder and bus driver；Locating platform (4-1), movement silk
Thick stick (4-3), guide rail (4-4), locating support (4-5) composition are moved forward and backward platform, two headstocks (4-2), movement lead screw (4-
3), guide rail (4-4) composition moves left and right platform；Two headstock (4-2) controls with radio reception to when control system (1) respectively
System is connected；Motion platform (4-7), torque motor two (4-8), mechanical arm (4-9) and rubber finger tip (4-6) composition play knot
Structure；Torque motor two (4-8) is mounted on motion platform (4-7), and with radio reception to the control system phase of when control system (1)
Even, torque motor two (4-8) drives mechanical arm (4-9) rotation that rubber finger tip (4-6) is made to tap keyboard completion and plays process.
2. a kind of upright piano automatic tuning system according to claim 1, which is characterized in that the radio reception microphone is logical
A/D conversion module is crossed to be connected with the comparison system.
3. a kind of upright piano automatic tuning system according to claim 1, which is characterized in that the torque motor one
(3-1) storied placement up and down.
4. a kind of upright piano automatic tuning system according to claim 1, which is characterized in that further include torque sensor
(3-2), the torque motor one (3-1) are connected by torque sensor (3-2) with the spanners for attuning (3-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821834054.8U CN209199576U (en) | 2018-11-07 | 2018-11-07 | A kind of upright piano automatic tuning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821834054.8U CN209199576U (en) | 2018-11-07 | 2018-11-07 | A kind of upright piano automatic tuning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209199576U true CN209199576U (en) | 2019-08-02 |
Family
ID=67410856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821834054.8U Expired - Fee Related CN209199576U (en) | 2018-11-07 | 2018-11-07 | A kind of upright piano automatic tuning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209199576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910856A (en) * | 2019-12-17 | 2020-03-24 | 邓磊 | Automatic piano tuner for music |
-
2018
- 2018-11-07 CN CN201821834054.8U patent/CN209199576U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910856A (en) * | 2019-12-17 | 2020-03-24 | 邓磊 | Automatic piano tuner for music |
| CN110910856B (en) * | 2019-12-17 | 2023-04-07 | 邓磊 | Automatic piano tuner for music |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 Termination date: 20201107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |