CN210429277U

CN210429277U - Guitar capable of automatically tuning

Info

Publication number: CN210429277U
Application number: CN201920975585.7U
Authority: CN
Inventors: 焦婕妤; 杨文成; 仇飞
Original assignee: Nanjing Xiaozhuang University
Current assignee: Nanjing Xiaozhuang University
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-28
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a can automatic tuning guitar, including the guitar, characterized by: the first upside of musical instrument of guitar is fixed with the audio frequency sensor, the downside of musical instrument head is fixed with central processing unit, and central processing unit one end is equipped with power connection socket, the input shaft of six book string wares of guitar passes corresponding fixed block and fixed connection respectively in the pivot of motor, every fixed connection is in one side of the fixed block that corresponds, every respectively the fixed block fixed connection be in the downside of musical instrument head, the downside both ends of fixed connection U-shaped support are distinguished at the upside both ends of the last hone lamella of guitar, the utility model relates to a guitar equipment field, specifically say, relate to a but automatic tuning guitar. The guitar can realize tuning only by poking the strings, is convenient and fast, has accurate adjusted pitch, and is more pleasant during playing.

Description

Guitar capable of automatically tuning

Technical Field

The utility model relates to a guitar equipment field specifically says, relates to a but automatic tuning guitar.

Background

Generally, a guitar needs to be tuned before being played, when tuning is performed, a pickup is clamped on a guitar head, tuning is started from a first string of the guitar, then strings are plucked to form empty strings, a knob of a string winder is continuously rotated, and vibration generated by the strings is determined to reach a corresponding pitch according to display information on the pickup. This tuning process is cumbersome. The time is delayed, so the guitar capable of automatically tuning is needed to be manufactured.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can automatic tuning guitar for the guitar tuning.

The utility model discloses a following technical scheme realizes the utility model purpose:

a guitar capable of automatic tuning comprises a guitar (11), and is characterized in that: an acoustic frequency sensor (9) is fixed on the upper side of the head (1) of the guitar (11), a central processing device (10) is fixed on the lower side of the headstock (1), one end of the central processing device (10) is provided with a power supply connecting socket (13), the input shafts (12) of six string rolling devices (5) of the guitar (11) respectively penetrate through the corresponding fixed blocks (4) and are fixedly connected to the rotating shaft of the motor (3), each motor (3) is respectively fixedly connected to one side of the corresponding fixed block (4), each fixed block (4) is fixedly connected to the lower side of the guitar head (1), the two ends of the upper side of the upper bone plate (6) of the guitar (11) are respectively and fixedly connected with the two ends of the lower side of the U-shaped bracket (8), one side of the horizontal pole of U-shaped support (8) is fixed with six vibrations sensors (7) of evenly arranging, every vibrations sensor (7) downside sets up a string that corresponds.

As a further limitation to the technical solution, a power module and a central processing unit are arranged in the central processing unit (10), the power module is electrically connected to the central processing unit, and the central processing unit is electrically connected to the six vibration sensors, the six driving modules of the motor (3) and the audio sensor.

As a further limitation of the technical solution, the central processing unit adopts a single chip microcomputer STM32F030C8, the vibration sensor (7) adopts a vibration sensor 74HC32D,

pins

42 and 41,

pins

40 and 39,

pins

28 and 27,

pins

26 and 25,

pins

21 and 22, and

pins

45 and 46 of the central processing unit are respectively and correspondingly connected with six driving modules of the motor (3),

pins

12, 13, 14, 15, 16 and 17 of the central processing unit are respectively connected with six corresponding vibration sensors (7), and

pins

18 and 19 of the central processing unit are respectively connected with

pins

11 and 12 of the audio sensor (9).

Compared with the prior art, the utility model discloses an advantage is with positive effect:

1. when the guitar is tuned, only the strings need to be stirred, so that the guitar is convenient and fast to use.

2. The guitar is controlled by the electronic element, the adjusted pitch is accurate, and the guitar is more pleasant to listen to when being played.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the present invention.

Fig. 2 is a partial enlarged view of a portion a in fig. 1 according to the present invention.

Fig. 3 is a schematic view of a three-dimensional structure of the present invention.

Fig. 4 is a partial enlarged view of the position B in fig. 3 according to the present invention.

Fig. 5 is a schematic diagram of a power module according to the present invention.

Fig. 6 is a schematic diagram of a cpu module of the present invention.

Fig. 7 is a schematic diagram of a motor control module according to the present invention.

In the figure: 1. the musical instrument comprises a head, 2, an output shaft, 3, a motor, 4, a fixing block, 5, a string rolling device, 6, a bone plating plate, 7, a vibration sensor, 8, a U-shaped support, 9, an audio sensor, 10, a central processing unit, 11, a guitar, 12, an input shaft, 13 and a socket.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

As shown in fig. 1-7, the utility model comprises a guitar 11, an acoustic frequency sensor 9 is fixed on the upper side of the head 1 of the guitar 11, a central processing device 10 is fixed on the lower side of the headstock 1, one end of the central processing device 10 is provided with a power supply connecting socket 13, the input shafts 12 of the six string rolling devices 5 of the guitar 11 respectively penetrate through the corresponding fixed blocks 4 and are fixedly connected to the rotating shafts of the motors 3, each motor 3 is respectively and fixedly connected to one side of the corresponding fixed block 4, each fixed block 4 is fixedly connected to the lower side of the guitar head 1, the two ends of the upper side of the upper bone plate 6 of the guitar 11 are respectively fixedly connected with the two ends of the lower side of the U-shaped bracket 8, one side of the horizontal pole of U-shaped support 8 is fixed with six vibrations sensors 7 of evenly arranging, every 7 downside settings of vibrations sensor correspond a string.

Be equipped with power module and central processing unit in the central processing unit 10, power module electric connection central processing unit, central processing unit electric connection is six vibrations sensor, six the drive module of motor 3 and audio sensor.

The central processing unit adopts singlechip STM32F030C8, the vibrations sensor 7 adopts vibrations sensor 74HC32D, central processing unit's

42 and 41,

40 and 39,

28 and 27,

26 and 25,

21 and 22,

45 and 46 correspond six of connection respectively the drive module of motor 3, central processing unit's

12, 13, 14, 15, 16, 17 respectively with six corresponding vibrations sensor 7 is connected, central processing unit's

18 and 19 are connected with audio sensor respectively. The vibration sensor 7 adopts a miniature vibration sensor, and the audio sensor and the vibration sensor 7 both adopt the existing products, so that the description is omitted.

The motor drive module schematic shown in fig. 7 is a motor drive module schematic of one of the motors 3, and the other motor control module schematic is the same as the schematic shown in fig. 7, so that the other motor control module schematic is omitted.

The utility model discloses a work flow does: when the device is used, a power supply is inserted into the power supply connecting socket 13, a string is stirred to generate vibration and make sound, the sound frequency sensor 9 detects the vibration frequency of the sound made by the string, the sound frequency sensor 9 feeds the detected sound frequency back to the central processing unit, meanwhile, the vibration sensor 7 corresponding to the upper side of the vibrating string can also sense the vibration of the corresponding string, the corresponding vibration sensor 7 feeds a signal back to the central processing unit, the central processing unit finds out the corresponding vibrating string according to the transmission signal of the vibration sensor 7, the central processing unit is stored with the standard pitch of each string in advance and also stores the identity information of the vibration sensor corresponding to each string and the identity information of each motor 3, and the central processing unit can determine which string the vibration sensor corresponds to according to the received vibration sensor signal, the central processing unit finds the standard pitch that vibrations musical instrument string corresponds, if the vibration frequency of the sound that the string sent is less than the standard pitch of finding, the motor 3 that central processing unit control corresponds rotates, motor 3 drives the input shaft 12 rotation of the string ware 5 that corresponds, make the output shaft 2 rotation of the string ware 5 that corresponds, the corresponding string of 2 rotations messenger that correspond is tightened gradually, the vibration frequency of this in-process vibrations string can change, this in-process audio sensor 9 lasts the vibration frequency who detects vibrations string and sends central processing unit, when the vibration frequency of the sound that the string sent reaches the vibration frequency of standard pitch, the stop rotation of the motor 3 that central processing unit control corresponds, the tuning of corresponding string is accomplished. If the vibration frequency of the sound that the string sent is greater than standard pitch, the motor 3 antiport that central processing unit 10 corresponds according to the vibration frequency control of sound, 2 rotations of corresponding output shaft make the corresponding string relax gradually, the vibration frequency of this in-process vibrations string can change, this in-process audio sensor 9 lasts the vibration frequency that detects vibrations string and sends for central processing unit, when the vibration frequency of the sound that the string sent reaches the vibration frequency of standard pitch, the motor 3 stall that central processing unit 10 control corresponds, the tuning of corresponding string is accomplished, then stir other strings and carry out the tuning, the theory of operation is the same with the aforesaid, it is not being repeated.

The above disclosure is only one specific embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A guitar capable of automatic tuning comprises a guitar (11), and is characterized in that: an acoustic frequency sensor (9) is fixed on the upper side of the head (1) of the guitar (11), a central processing device (10) is fixed on the lower side of the headstock (1), one end of the central processing device (10) is provided with a power supply connecting socket (13), the input shafts (12) of six string rolling devices (5) of the guitar (11) respectively penetrate through the corresponding fixed blocks (4) and are fixedly connected to the rotating shaft of the motor (3), each motor (3) is respectively fixedly connected to one side of the corresponding fixed block (4), each fixed block (4) is fixedly connected to the lower side of the guitar head (1), the two ends of the upper side of the upper bone plate (6) of the guitar (11) are respectively and fixedly connected with the two ends of the lower side of the U-shaped bracket (8), one side of the horizontal pole of U-shaped support (8) is fixed with six vibrations sensors (7) of evenly arranging, every vibrations sensor (7) downside sets up a string that corresponds.

2. The automatically tunable guitar of claim 1, wherein: the intelligent vibration control device is characterized in that a power supply module and a central processing unit are arranged in the central processing unit (10), the power supply module is electrically connected with the central processing unit, and the central processing unit is electrically connected with six vibration sensors, six driving modules of the motor (3) and the audio sensor.

3. The automatically tunable guitar of claim 2, wherein: the central processing unit adopts a single chip microcomputer STM32F030C8, pins 42 and 41, pins 40 and 39, pins 28 and 27, pins 26 and 25, pins 21 and 22 and pins 45 and 46 of the central processing unit are respectively and correspondingly connected with six driving modules of the motor (3), pins 12, 13, 14, 15, 16 and 17 of the central processing unit are respectively connected with the corresponding vibration sensors (7), and pins 18 and 19 of the central processing unit are respectively connected with the audio sensors (9).