Intelligent maintenance device and method for bow of bowed-string musical instrument

Abstract

The invention discloses an intelligent maintenance device and method for a bow of a bowed-string musical instrument, and the device comprises a pedestal which is provided with a bow positioning structure for positioning the bow of the bowed-string musical instrument; the rosin smearing mechanism comprises a driving part, a moving part, a rosin seat used for positioning rosin and a pressure sensor used for detecting the contact force between the rosin and fiddlestick hair, and the moving part is movably arranged on the base and is driven by the driving part; the pressure sensor is arranged on the moving part, and the rosin seat is arranged at the detection end of the pressure sensor; the controller is connected with the driving part and the pressure sensor; and the controller controls the working state of the driving part according to the contact force detected by the pressure sensor, so that the moving part drives the rosin seat to adjust the position and move for smearing. The device can flexibly adjust the smearing strength of rosin, avoids damage to the bow hairs, improves the rosin smearing effect, and can adapt to the bow hairs of different materials and types.

Description

Technical Field

[0001] The present invention relates to the technical field of musical instrument equipment, and in particular to an intelligent maintenance device and method for a bow of a bowstring musical instrument. Background Art

[0002] The bow is one of the key tools for bow string instruments to produce sound. The maintenance of the bow hair directly affects the purity of the tone and the volume. Therefore, applying rosin to the bow hair properly can maintain its elasticity and friction, which is crucial for the sound quality and volume when playing. However, excessive use should be avoided to prevent the bow hair from becoming hard. Artificial application of rosin is a common method, but this method has the following shortcomings: it is difficult to ensure the uniform distribution of rosin on the bow hair by manual application, and it is easy to have too much or too little rosin in some parts; for professional performers or instrument manufacturers, frequent application of rosin will consume a lot of time and energy; the effect of applying rosin depends largely on the experience of the user, and novices may affect the performance of the bow hair due to improper operation. For this reason, the prior art has a device that can automatically apply rosin to the bow, but this device generally has the following shortcomings: it cannot automatically adjust the application strength, which easily leads to poor rosin application effect and even damage to the bow hair; the tension of bow hair of different materials and types is different, and the application strength cannot be automatically adjusted, resulting in the inability to adapt to bow hair of different materials and types. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the present invention provides an intelligent bow maintenance device and method for a bowed string instrument, which can not only automatically apply rosin to the bow hair instead of manually, but also automatically adjust the application force to ensure the rosin application effect of the bow hair and avoid damaging the bow hair.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an intelligent bow maintenance device for bowed string instruments, comprising:

[0005] A base, the base being provided with a bow positioning structure for positioning a bow of a bowed string instrument;

[0006] A rosin applying mechanism, the rosin applying mechanism comprising a driving component, a moving component, a rosin seat for positioning the rosin, and a pressure sensor for detecting the contact force between the rosin and the bow hair, the moving component being movably arranged on the base and driven by the driving component; the pressure sensor being arranged on the moving component, and the rosin seat being arranged at the detection end of the pressure sensor;

[0007] A controller connected to the driving component and the pressure sensor;

[0008] The controller controls the working state of the driving component according to the size of the contact force detected by the pressure sensor, so that the moving component drives the rosin holder to adjust its position and move and apply.

[0009] Furthermore, it also includes a photographing component for taking a picture of the bow hair, and the photographing component is arranged on the base, or the photographing component is arranged on the moving component; the photographing component transmits the acquired picture to the controller to detect the rosin amount of the bow hair.

[0010] Furthermore, the controller compares the received photo with a pre-stored standard photo, and outputs corresponding reminder information and / or controls the working state of the driving component according to the comparison result.

[0011] Furthermore, the controller determines whether the force value of the contact force is within a set threshold range, and controls the working state of the driving component according to the determination result, and the threshold range is the tension threshold range of the bow hair.

[0012] Furthermore, the controller is connected to the user's smart mobile terminal and / or computer to transmit information related to the maintenance of the bow hair.

[0013] Furthermore, the moving component includes a first moving member slidably arranged on the base along a first direction, a second moving member slidably arranged on the first moving member along a second direction, and a third moving member slidably arranged on the second moving member along a third direction, the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is the extension direction of the bow hair of the bow placed on the bow positioning structure; the pressure sensor is arranged on the third moving member, and the photographing component is arranged on the second moving member.

[0014] Furthermore, the driving component includes a first driving member for driving the first moving member to move, a second driving member for driving the second moving member to move, and a third driving member for driving the third moving member to move, the first driving member, the second driving member and the third driving member are electrically connected to the controller respectively, and the first driving member is arranged on the base, the second driving member is arranged on the first moving member, and the third driving member is arranged on the second moving member.

[0015] Furthermore, the bow positioning structure includes a matching hole for inserting one end of the bow and a placement slot for inserting the other end of the bow, and the placement slot is provided with a fixing pin for opening and closing its slot.

[0016] Furthermore, the base is also provided with a body placement position for placing the body of a bowed string instrument; and also includes a shell, which is detachably connected to the base and wraps the bowed string instrument placed on the base; the shell is made of an opaque material.

[0017] Furthermore, the controller is arranged in the base, and the base is provided with control buttons of the controller; the bowed string instrument includes one of erhu, violin, viola, cello, and harp.

[0018] The present invention further provides an intelligent bow maintenance method for a bowed string instrument, which is characterized by comprising a rosin application process, wherein the rosin application process comprises the following steps:

[0019] Move the rosin to the starting point of the bow hair and touch it to the bow hair;

[0020] Detect the contact force between rosin and bow hair;

[0021] Determine whether the force value of the contact force is within a set threshold range, if so, execute the next step, otherwise adjust the position of the rosin in the contact direction between the rosin and the bow hair, and return to the previous step;

[0022] Move the rosin along the extension direction of the bow hair to the side away from the initial application position and apply the rosin to the bow hair.

[0023] Furthermore, the threshold range is the tension threshold range of the bow hair; and a rosin amount detection process is also included, and the rosin amount detection process includes the following steps:

[0024] Taking photos of the bow hair in a moving or fixed manner to obtain photos of the bow hair;

[0025] The photo is compared with a pre-stored standard photo, and corresponding reminder information is output and / or the rosin application process is started according to the comparison result.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention detects the contact force between rosin and bow hair in real time through a pressure sensor, and adjusts the position of the rosin seat according to the magnitude of the force value, so that the present invention can flexibly adjust the application force of rosin to ensure that the application force is appropriate, thereby avoiding damage to the bow hair and improving the rosin application effect, and also enables the present invention to adapt to bow hair of different materials and types.

[0028] 2. The present invention determines whether the amount of rosin on the bow hair is sufficient by taking photos and image recognition, which can avoid hardening of the bow hair due to excessive maintenance.

[0029] 3. The present invention compares the contact force value detected by the pressure sensor with a set threshold range, and the threshold range is preferably the tension threshold range of the bow hair, so that the present invention can adjust the application force according to the tension of the bow hair, thereby further improving the application effect and improving the adaptability of the present invention to bow hair of different materials and types.

[0030] 4. The moving parts include the first moving part, the second moving part and the third moving part, so that the moving parts can achieve three-dimensional movement, which helps to improve the movement accuracy of the moving parts, thereby helping to further improve the application effect of rosin.

[0031] 5. The base is also provided with a position for placing the instrument body, so that the present invention is suitable for storing the entire bowed string instrument. In particular, the present invention further includes the shell, which can better store the bowed string instrument.

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the intelligent bow maintenance device and method for a bowed string instrument of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The three-dimensional structure of the present invention when the housing and the base are separated Figure 1 (including Erhu);

[0034] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention when the shell is opened. Figure 2 (including Erhu);

[0035] Figure 3 yes Figure 2 A partial enlarged schematic diagram of

[0036] Figure 4 yes Figure 1 A partial schematic diagram of

[0037] Figure 5 It is a three-dimensional structural schematic diagram of the present invention when the housing and the base are connected;

[0038] In the figure, 1, base; 11, base; 111, matching hole; 112, piano body placement position 12, pillar; 121, guide slide groove; 13, fixing seat; 131, placement groove; 132, fixing pin; 2, bow; 21, bow hair; 3, moving part; 31, first moving part; 32, second moving part; 33, third moving part; 4, rosin seat; 5, pressure sensor; 6, camera part; 7, piano body; 8, outer shell; 9, control button. DETAILED DESCRIPTION

[0039] In the present invention, the terms "first", "second", "third", etc. are only used to distinguish similar objects, rather than to describe a specific order or precedence, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0040] See also Figure 1-Figure 5 As shown, an intelligent bow maintenance device for a bowed string instrument of the present invention is used for maintaining bowed string instruments, specifically for applying rosin to the bow hair of bowed string instruments for maintenance. Bowed string instruments include one of erhu, violin, viola, cello, harp, etc. This embodiment takes erhu as an example, but is not limited to this.

[0041] The present invention comprises:

[0042] A base 1, the base 1 is provided with a bow positioning structure for positioning a bow 2 of a bowed string instrument (i.e., an erhu);

[0043] A rosin applying mechanism, the rosin applying mechanism comprises a driving component (not shown in the figure), a moving component 3, a rosin seat 4 for positioning the rosin, and a pressure sensor 5 for detecting the contact force between the rosin and the bow hair 21. The moving component 3 is movably arranged on the base 1 and driven by the driving component; the pressure sensor 5 is arranged on the moving component 3, and the rosin seat 4 is arranged at the detection end of the pressure sensor 5;

[0044] A controller (not shown in the figure) is connected to the driving component and the pressure sensor 5.

[0045] The pressure sensor 5 transmits the force value of the detected contact force to the controller, and the controller controls the working state of the driving component according to the magnitude of the contact force detected by the pressure sensor 5, so that the moving component 3 drives the rosin seat 4 to adjust the position in the contact direction between the rosin and the bow hair 21 and move to apply the rosin. Specifically, the controller determines whether the force value of the contact force is within a set threshold range, and controls the working state of the driving component according to the judgment result.

[0046] When applying rosin, the moving part 3 drives the rosin seat 4 to move to the starting application position of the bow hair 21 and makes the rosin touch the bow hair 21. The pressure sensor 5 detects the contact force between the rosin and the bow hair 21 in real time and transmits it to the controller. The controller determines whether the force value of the contact force is within the set threshold range. If not, it controls the working state of the driving part, so that the moving part 3 drives the rosin seat 4 to move in the contact direction between the rosin and the bow hair 21 to adjust the position until the force value of the contact force detected by the pressure sensor 5 is within the set threshold range. Then, the moving part 3 drives the rosin seat 4 to move along the extension direction of the bow hair 21 to the side away from the starting application position, so that the rosin is evenly applied on the bow hair 21. The starting application position is generally located at one end of the bow hair 21, but is not limited to this. The threshold range set above is preferably the tension threshold range of the bow hair 21, and different tension threshold ranges can be set for different bow hairs. In this way, the present invention can adjust the application strength of the rosin according to the tension of the bow hair 21.

[0047] The present invention also includes a photographing component 6 for photographing the bow hair 21, and the photographing component 6 is arranged on the moving component 3, so that the moving component 3 can drive the photographing component 6 to move to a position suitable for photographing, so that the bow hair 21 partially or completely enters the photographing field of the photographing component 6, and the moving component 3 can drive the photographing component 6 to realize mobile photographing. In other embodiments, the photographing component 6 is arranged at a position suitable for photographing on the base 1. The photographing component 6 is preferably a CCD camera.

[0048] The above-mentioned photographing component 6 transmits the acquired photo to the controller to detect the amount of rosin on the bow hair 21. Specifically, the controller compares the received photo with the pre-stored standard photo to determine whether the amount of rosin on the bow hair 21 is sufficient, and outputs the corresponding reminder information and / or controls the working state of the driving component according to the comparison result. The reminder information is used to inform the user whether the bow hair 21 needs to be maintained (i.e., whether rosin needs to be applied). The reminder information can be a light reminder information, a voice reminder information, or a text reminder information, etc.; the working state of the driving component is used to automatically start the rosin application process when the amount of rosin on the bow hair 21 is insufficient. The standard photo refers to a photo of the bow hair 21 coated with a sufficient amount of rosin. The bow hair 21 on the standard photo and the bow hair 21 whose rosin amount needs to be detected are of the same material and type.

[0049] Furthermore, the controller is connected to the user's smart mobile terminal and / or computer to transmit maintenance-related information of the bow hair 21. The smart mobile terminal includes the user's smart phone, tablet computer, laptop computer, etc. The maintenance-related information of the bow hair 21 includes one or more of the magnitude of the contact force detected by the pressure sensor 5, the result of the rosin amount detection of the bow hair 21, reminder information, etc.

[0050] The moving component 3 includes a first moving member 31 slidably arranged on the base 1 along a first direction, a second moving member 32 slidably arranged on the first moving member 31 along a second direction, and a third moving member 33 slidably arranged on the second moving member 32 along a third direction. The first direction, the second direction and the third direction are perpendicular to each other, and the first direction is the extension direction of the bow hair 21 of the bow 2 placed on the bow positioning structure; the pressure sensor 5 is arranged on the third moving member 33, the camera component 6 is arranged on the second moving member 32, and the camera component 6 and the third moving member 33 are arranged along the second direction. Specifically, in the present embodiment, the first direction is the direction where the z-axis is located, the second direction is the direction where the y-axis is located, and the third direction is the direction where the x-axis is located. Figure 3 Therefore, the moving component 3 of the present invention can realize three-dimensional movement, but is not limited thereto. In other embodiments, the moving component realizes two-dimensional movement, such as movement in the direction of the z-axis and movement in the direction of the x-axis.

[0051] The driving member comprises a first driving member for driving the first moving member 31 to move, a second driving member for driving the second moving member 32 to move, and a third driving member for driving the third moving member 33 to move, the first driving member, the second driving member and the third driving member are electrically connected to the controller respectively, and the first driving member is arranged at the base 1, the second driving member is arranged at the first moving member 31, and the third driving member is arranged at the second moving member 32. The first driving member, the second driving member and the third driving member can be realized by using a motor or a cylinder, etc. respectively, and can be used in conjunction with a transmission assembly (such as a gear transmission assembly or a screw transmission assembly, etc.), and can also be used in conjunction with a travel switch, etc., to accurately control the movement amount of the first moving member 31, the second moving member 32, and the third moving member 33 each time, this is a conventional technology, and no further description is given.

[0052] The bow positioning structure includes a matching hole 111 for inserting one end of the bow 2 and a placement groove 131 for inserting the other end of the bow 2. The placement groove 131 is provided with a fixing pin 132 for opening and closing the slot. The base 1 specifically includes a base 11 and a pillar 12 disposed on the top surface of the base 11 and extending along the positive direction of the z-axis. A fixing seat 13 is disposed at one end of the pillar 12 away from the base 11. The placement groove 131 is disposed on the fixing seat 13, and the placement groove 131 is through-shaped in the first direction. The matching hole 111 is disposed on the base 11, and a guide slot 121 extending along the length direction thereof is disposed on the pillar 12. The first moving member 31 is slidably disposed in the guide slot 121.

[0053] The base 1 is also provided with a body placement position 112 for placing the body 7 of a bowed string instrument (i.e., erhu). Specifically, the body placement position 112 is provided on the top surface of the base 11, and the body placement position 112 is a groove structure, but is not limited thereto. The present invention also includes a shell 8, which is detachably connected to the base 11 of the base 1, and wraps the bowed string instrument placed on the base 1, the pillar 12 of the base 1, and the fixing seat 13. Specifically, an opening is provided at the bottom end of the shell 8, and the bottom end of the shell 8 is sealed with the base 11 all around, and the shell 8 is made of an opaque material, specifically a brown light-proof material, which can prevent direct sunlight from shining on the erhu, thereby enabling better storage of the erhu.

[0054] In this embodiment, the controller is disposed in the base 1, specifically in the base 11 of the base 1. The base 11 of the base 1 is provided with a control button 9 of the controller to facilitate manual operation by the user.

[0055] The control modes of the present invention include a piano-playing mode, an automatic maintenance mode, and a manual mode. The workflow of the piano-playing mode is as follows: before playing the piano, the user presses the control button 9 to start the rosin amount detection function of the bow hair 21, and prompts the user whether the rosin amount on the bow hair 21 meets the requirements. When detecting the rosin amount of the bow hair 21, the first movable member 31 and the second movable member 32 move the photographing component 6 to the front of the upper end of the bow hair 21, so that the bow hair 21 is located in the photographing field of the photographing component 6, and then starts to move from top to bottom along the negative direction of the z-axis, photographing the shape of the bow hair 21 during the movement, and stops moving when it moves to the bottom. The controller starts to detect the rosin amount of the bow hair 21 through image recognition. If the rosin amount is insufficient, relevant reminder information such as insufficient rosin amount and cannot be used is output, and the rosin application process is started. If the rosin amount is sufficient, relevant reminder information such as sufficient rosin amount and can be used directly is output. When applying rosin, the first movable member 31 and the second movable member 32 move the rosin and the rosin seat 4 to the front of the bow hair 21 at the upper end of the bow 2, and the third movable member 33 drives the rosin and the rosin seat 4 to move in the direction close to the bow hair 21 until the rosin touches the bow hair 21; when the pressure sensor 5 detects that the force value of the contact pressure between the rosin and the bow hair 21 is within the set threshold range, the third movable member 33 stops moving, otherwise the third movable member 33 moves along the positive or negative direction of the x-axis to adjust the position of the rosin; thereafter, the first movable member 31 starts to move downward, thereby starting to use rosin to apply and maintain the bow hair 21; during the downward movement of the first movable member 31, the pressure sensor 5 detects the change in the contact force between the rosin and the bow hair 21 in real time, so as to adjust the displacement of the third movable member 33 in real time to ensure that the rosin is evenly applied. After completing the rosin amount detection and / or rosin application, communication can be established with the user's smart mobile terminal, and relevant information about detection and maintenance can be sent to the user's smart mobile terminal. The maintenance-related information can also be told to the user through language broadcast. At this time, the user can remove the shell 8 and take out the erhu.

[0056] The working process of the automatic maintenance mode is: when the user does not use the erhu for a long time, the rosin amount of the bow hair 21 is detected regularly under the control of the controller. The detection process is the same as the detection process in the piano mode, and the rosin application process is automatically started when insufficient rosin is detected. The rosin application process is the same as the application process in the piano mode.

[0057] The workflow of the manual mode is as follows: after the user takes out the bow 2 and finds that the amount of rosin is insufficient, if rosin needs to be applied again for maintenance, the user can put the bow 2 back into the device, insert the fixing pin 132 of the bow 2, cover the housing 8, and double-click the control button 9 to start the rosin application process. The rosin application process is the same as the rosin application process in the piano mode, and will not be repeated here. In the manual mode, the controller records the image information of the bow hair 21 collected by the camera component 6 this time, performs autonomous learning of image recognition, and improves the accuracy of image recognition through multiple machine learning.

[0058] The present invention detects the contact force between the rosin and the bow hair 21 in real time through the pressure sensor 5, and adjusts the position of the rosin according to the size of the contact force, so that the present invention can flexibly adjust the application strength of the rosin, ensure that the application strength is appropriate, thereby avoiding damage to the bow hair 21, improving the rosin application effect, and enabling the present invention to adapt to bow hairs 21 of different materials and types. In particular, the present invention uses the tension threshold range of the bow hair 21 as the force value comparison object of the above-mentioned contact force, so that the present invention can adjust the application strength according to the tension size of the bow hair 21, thereby further improving the application effect, and improving the adaptability of the present invention to bow hairs 21 of different materials and types.

[0059] The intelligent bow maintenance method of a bowed string instrument of the present invention comprises a rosin application process, and the rosin application process comprises the following steps:

[0060] Move the rosin to the starting point of the bow hair and touch it to the bow hair;

[0061] Detect the contact force between rosin and bow hair;

[0062] Determine whether the force value of the contact force is within a set threshold range, if so, execute the next step, otherwise adjust the position of the rosin in the contact direction between the rosin and the bow hair, and return to the previous step;

[0063] Move the rosin along the extension direction of the bow hair to the side away from the initial application position and apply the rosin to the bow hair.

[0064] In this embodiment, the rosin is positioned on a rosin seat, the rosin seat is arranged at the detection end of the pressure sensor, and a moving part capable of three-dimensional or two-dimensional movement is used to drive the pressure sensor to move, so as to achieve position adjustment and mobile application of the rosin. The threshold range set above is preferably the tension threshold range of the bow hair.

[0065] The present invention also includes a rosin amount detection process, which includes the following steps:

[0066] Taking photos of the bow hair in a moving or fixed manner to obtain photos of the bow hair;

[0067] The photo is compared with a pre-stored standard photo, and corresponding reminder information is output and / or the rosin application process is started according to the comparison result.

[0068] Specifically, when the comparison result shows that the amount of rosin is sufficient, a reminder message is output to inform the user that there is no need to apply rosin; when the comparison result shows that the amount of rosin is insufficient, a reminder message is output to inform the user that rosin needs to be applied, or the rosin application process is automatically started, or a reminder message is output to inform the user that rosin needs to be applied and the rosin application process is automatically started.

[0069] Specifically, the intelligent maintenance method for the bow of a stringed instrument of the present invention can be implemented by the intelligent maintenance device for the bow of a stringed instrument of the present invention. Therefore, its detailed working process is as described above and will not be repeated here.

[0070] The present invention provides an intelligent bow maintenance device and method for a bowed string instrument, and the unrelated parts are the same as the prior art or can be implemented by using the prior art.

[0071] The above embodiments are only used to further illustrate the intelligent bow maintenance device and method for bowed string instruments of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. An intelligent bow maintenance device for a bowed string instrument, characterized in that: include: A base, the base being provided with a bow positioning structure for positioning a bow of a bowed string instrument; A rosin applying mechanism, the rosin applying mechanism comprising a driving component, a moving component, a rosin seat for positioning the rosin, and a pressure sensor for detecting the contact force between the rosin and the bow hair, the moving component being movably arranged on the base and driven by the driving component; the pressure sensor being arranged on the moving component, and the rosin seat being arranged at the detection end of the pressure sensor; A controller connected to the driving component and the pressure sensor; The controller controls the working state of the driving component according to the size of the contact force detected by the pressure sensor, so that the moving component drives the rosin holder to adjust its position and move and apply.

2. The intelligent bow maintenance device for a bowed string instrument according to claim 1, characterized in that: It also includes a photographing component for taking pictures of the bow hair, and the photographing component is arranged on the base, or the photographing component is arranged on the moving component; the photographing component transmits the acquired pictures to the controller to detect the amount of rosin in the bow hair.

3. The intelligent bow maintenance device for a bowed string instrument according to claim 2, characterized in that: The controller compares the received photo with the pre-stored standard photo, and outputs corresponding reminder information and / or controls the working state of the driving component according to the comparison result.

4. The intelligent bow maintenance device for a bowed string instrument according to claim 1, characterized in that: The controller determines whether the force value of the contact force is within a set threshold range, and controls the working state of the driving component according to the determination result, wherein the threshold range is the tension threshold range of the bow hair.

5. The intelligent bow maintenance device for a bowed string instrument according to claim 1, characterized in that: The controller is connected to the user's smart mobile terminal and / or computer for communication to transmit bow hair maintenance related information.

6. The intelligent bow maintenance device for a bowed string instrument according to claim 2, characterized in that: The moving component includes a first moving member slidably arranged on the base along a first direction, a second moving member slidably arranged on the first moving member along a second direction, and a third moving member slidably arranged on the second moving member along a third direction, the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is the extension direction of the bow hair of the bow placed on the bow positioning structure; the pressure sensor is arranged on the third moving member, and the photographing component is arranged on the second moving member.

7. The intelligent bow maintenance device for a bowed string instrument according to claim 6, characterized in that: The driving component includes a first driving member for driving the first moving member to move, a second driving member for driving the second moving member to move, and a third driving member for driving the third moving member to move. The first driving member, the second driving member and the third driving member are electrically connected to the controller respectively, and the first driving member is arranged on the base, the second driving member is arranged on the first moving member, and the third driving member is arranged on the second moving member.

8. The intelligent bow maintenance device for a bowed string instrument according to claim 1, characterized in that: The bow positioning structure comprises a matching hole for inserting one end of the bow and a placement slot for inserting the other end of the bow, and the placement slot is provided with a fixing pin for opening and closing its slot.

9. The intelligent bow maintenance device for a bowed string instrument according to claim 1, characterized in that: The base is also provided with a body placement position for placing the body of a bowed string instrument; it also includes a shell, which is detachably connected to the base and wraps the bowed string instrument placed on the base; the shell is made of an opaque material.

10. The intelligent bow maintenance device for a bowed string instrument according to claim 1, characterized in that: The controller is arranged in the base, and the base is provided with control buttons of the controller; the bowed string instrument includes one of erhu, violin, viola, cello and harp.

11. An intelligent bow maintenance method for a bowed string instrument, characterized in that: A rosin application process is included, which includes the following steps: Move the rosin to the starting point of the bow hair and touch it to the bow hair; Detect the contact force between rosin and bow hair; Determine whether the force value of the contact force is within a set threshold range, if so, execute the next step, otherwise adjust the position of the rosin in the contact direction between the rosin and the bow hair, and return to the previous step; Move the rosin along the extension direction of the bow hair to the side away from the initial application position and apply the rosin to the bow hair.

12. The intelligent bow maintenance method for a bowed string instrument according to claim 11, characterized in that: The threshold range is the tension threshold range of the bow hair; and also includes a rosin amount detection process, which includes the following steps: Taking photos of the bow hair in a moving or fixed manner to obtain photos of the bow hair; The photo is compared with a pre-stored standard photo, and corresponding reminder information is output and / or the rosin application process is started according to the comparison result.

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