Structure of string detection sensing assembly and guitar

Abstract

The utility model relates to a string detection sensing assembly structure and a guitar, the string detection sensing assembly structure comprises a guitar body and a plurality of strings, the tail end of each string is provided with at least one sensing assembly, each sensing assembly comprises: a pickup seat comprising a seat body and a pickup tensioning member; the pickup isolator is positioned on the inner wall of the seat body; the sound pickup cover body is used for conducting vibration signals generated by strings and comprises a cover body and a sound pickup cover; the FPC assembly comprises at least one exposed copper sheet, a connecting wire and an FPC wire; and the ceramic pickup sheet is used for converting the acquired different exciting forces into electric signals. Through the side-mounted structure that the ceramic pickup sheet is erected on the side surface of the string, different exciting forces are converted into different electric signals, noise interference is reduced, and signal stability and sensitivity are improved, so that accurate capture and analysis of string vibration information are realized; the side-mounted structural design can also be applied to intelligent guitars and other vibration information acquisition fields, and the application range of the technical scheme is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of musical instruments, in particular to a structure of a string detection sensor component and a guitar. Background Art

[0002] Smart guitars need to collect string vibration information. Usually, coil pickups, strain gauges and other sensor components are installed at one end of the strings for data collection. The installation structure of the sensor components mostly adopts the press-fit method. The above string vibration collection scheme is easily affected by noise interference, causing signal distortion and limiting the high-sensitivity detection of slight force changes.

[0003] Furthermore, this installation method, where the sensor assembly is directly attached to the surface of the strings, can introduce noise interference from the environment or other vibration sources. This noise can generate excitation forces, affecting the accuracy of data collection. Furthermore, due to the low sensitivity of the surface where the sensor assembly contacts the strings, some signals may be missed or distorted, rendering the collected data less accurate and complete. Furthermore, using a press-fit method to install the sensor assembly at one end of the string makes it difficult to achieve highly sensitive detection of even slight changes in string force, and the vibrations between the strings easily cause crosstalk, limiting the range and accuracy of data collection.

[0004] At the same time, most of the string covers on the market are flat in design and can only generate force in the vertical direction. They cannot improve signal stability and sensitivity, and cannot solve the problems of signal distortion and attenuation. Summary of the Invention

[0005] The purpose of the present utility model is to solve the above-mentioned problems and to propose a structure of a string detection sensor component with higher data acquisition accuracy by adopting a side-mounted design to reduce noise interference, improve signal stability and sensitivity, and effectively solve the signal distortion and attenuation problems by increasing the signal capture area and optimizing the installation method.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A structure of a string detection sensor assembly and a guitar, comprising a guitar body and a plurality of strings, wherein at least one sensor assembly is provided at the end of each string, each sensor assembly comprising:

[0008] The pickup seat is used to fix other sensor components on the piano body. The top of the pickup seat can also be used for strings to pass through. The pickup seat includes a base and a pickup tensioner.

[0009] The pickup isolator is located on the inner wall of the seat to prevent crosstalk between the mechanical signals of the strings;

[0010] The pickup cover is located on the inner wall of the pickup isolator and is used to transmit the vibration signal generated by the strings. The pickup cover includes a cover body and a pickup cover.

[0011] An FPC assembly is located within the pickup cover. The FPC assembly includes at least one exposed copper sheet, a connecting wire, and an FPC wire. The FPC assembly is used to transmit electrical signals to the MCU computing chip within the instrument body.

[0012] The ceramic pickup is used to convert the collected different excitation forces into electrical signals. The ceramic pickup is provided with a positive pole and a negative pole.

[0013] In this specific embodiment, the seat body is made up of at least four side panels, wherein the bottom of the side panels on the left and right sides are respectively provided with at least one U-shaped groove, the U-shaped groove is used to fix the pickup seat on the piano body, and the pickup tensioning piece is provided with an inclined hole for passing the strings through the inclined hole.

[0014] In this specific embodiment, the cover body is located below the pickup cover, the cover body is sleeved on the inner surface of the pickup isolator, and the bottom of the pickup cover is parallel to the top of the pickup seat.

[0015] In this specific embodiment, the pickup cover is designed to be trapezoidal, with a string retaining groove on the top. The middle of the string retaining groove is smooth for contacting the strings, and both sides of the string retaining groove extend downward from the middle to form an inclined surface.

[0016] In this specific embodiment, the sound pickup isolator is closely attached to the four side panels of the base body to form a cavity for placing the sound pickup cover. The sound pickup isolator is made of silicone.

[0017] In this specific embodiment, two exposed copper sheets are provided in the FPC assembly, and the two exposed copper sheets are arranged in sequence from top to bottom. At least one exposed copper area is provided on the exposed copper sheets. The two exposed copper sheets are connected by at least one connecting line. The connecting line can be bent downward so that the exposed copper sheet located above is folded and arranged opposite to the exposed copper sheet located below, so that the exposed copper areas on the exposed copper sheets correspond to each other. The bottom of the exposed copper sheet located below is connected to the FPC line, and the FPC line passes through the bottom of the pickup seat. At the same time, the FPC assembly is close to the inner wall of one side of the pickup isolator.

[0018] In this specific embodiment, the ceramic pickup plate is sandwiched between two oppositely arranged copper-exposed areas, and both sides of the ceramic pickup plate are in contact with the copper-exposed areas. One of the copper-exposed areas is connected to the positive electrode of the ceramic pickup plate, and the other copper-exposed area is connected to the negative electrode of the ceramic pickup plate, and the area of ​​the ceramic pickup plate is greater than or equal to the area of ​​the copper-exposed plate.

[0019] In this specific embodiment, the FPC assembly is installed on the side of the pickup cover so that the left and right sides of the FPC assembly and the ceramic pickup plates on the same side of the FPC assembly, and multiple groups of ceramic pickup plates, are in contact with the corresponding inner surfaces on both sides of the pickup cover.

[0020] In this specific embodiment, an MCU computing chip is provided in the piano body, and the MCU computing chip is electrically connected to the FPC component through a connector. The ceramic pickup converts the generated excitation force into an electrical signal and transmits it to the FPC component. The magnitude of the excitation force will form different electrical signals. The excitation force is generated by the vibration of the strings, and then the electrical signal is transmitted to the MCU computing chip for processing through the FPC component. The MCU computing chip plays different sound effects according to the different electrical signals received.

[0021] In this specific embodiment, the contact surface between the bottom of the pickup cover and the pickup isolator is the first contact surface, and the contact surface between the side of the exposed copper sheet without exposed copper area and the side corresponding to the pickup cover is the second contact surface.

[0022] The solution of the utility model can be applied to musical instruments whose main playing method is to pluck strings to make them vibrate, such as guitar, guzheng, pipa, etc.

[0023] Compared with the prior art, the present invention provides a structure of a string detection sensor assembly and a guitar, which has the following beneficial effects:

[0024] By placing the FPC assembly and ceramic pickup plate on the side of the strings, the utility model converts different excitation forces into different electrical signals, effectively reducing noise interference from other vibration sources of the guitar body and improving the stability and sensitivity of the electrical signals, thereby achieving accurate capture and analysis of string vibration information. This side-mounted structural design can also be applied to smart guitars and other vibration information collection fields, expanding the scope of application of the technical solution.

[0025] By setting up a pickup isolator, the vibration generated by the strings can be buffered and isolated from the vibration generated by the guitar body, so that the sensor component reads less vibration from the guitar body, improving the signal's anti-interference ability. The pickup isolator will block the mechanical vibration signal transmitted to the ceramic pickup plate and attenuate the mechanical vibration signal transmitted to the pickup seat, preventing crosstalk between mechanical signals between the strings.

[0026] By providing the first contact surface and the second contact surface, the capture area of ​​the electrical signal is further increased, effectively solving the distortion and attenuation of the electrical signal, achieving higher data acquisition accuracy, enhancing the sensitivity of the present invention, and also making the force range of the strings wider and the interference smaller;

[0027] By setting the string retaining groove on the top of the pickup cover as an inclined surface, the contact area between the string retaining groove and the strings is increased, making it easier and more accurate to sense the vibration of the strings, such as the force from the strings and whether the vibration direction is horizontal or vertical. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an illustrative and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0029] Figure 1 It is a schematic diagram of the structure of the string detection sensor assembly of the utility model;

[0030] Figure 2 This is an exploded view of the structure of the string detection sensor assembly of the utility model;

[0031] Figure 3 It is a three-dimensional diagram of the structure of the string detection sensor assembly of the utility model;

[0032] Figure 4 This is a diagram of the internal structure of the structure of the string detection sensor assembly of the utility model;

[0033] Figure 5 It is a cross-sectional view of the structure of the string detection sensor assembly of the utility model;

[0034] Figure 6 It is a digital signal transmission schematic diagram of the structure of the string detection sensor component of the present invention.

[0035] Figure numerals: 100, piano body; 200, strings; 1, sensor assembly; 10, pickup seat; 11, seat body; 111, side panel; 112, U-shaped groove; 12, pickup tensioner; 121, bevel hole; 20, pickup isolator; 30, pickup cover; 31, cover body; 32, pickup cover; 33, string retaining groove; 331, inclined surface; 40, FPC assembly; 41, exposed copper sheet; 42, connecting wire; 43, FPC wire; 44, exposed copper area; 50, ceramic pickup sheet; 60, MCU computing chip; 70, first contact surface; 80, second contact surface. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are part of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0037] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0038] The traditional sensor component installation structure still uses the press-fit method, which is susceptible to noise interference, causing signal distortion and limiting the high-sensitivity detection of slight force changes.

[0039] In view of this, if Figure 1 As shown, a guitar string detection sensor assembly structure includes a guitar body 100 and a plurality of strings 200. Each string 200 is provided with at least one sensor assembly 1 at its end. The sensor assembly 1 corresponds to each string 200 and is used to pick up the vibration of the corresponding string 200. Each sensor assembly 1 independently detects the vibration of the corresponding string, and the vibration signal of each string 200 is collected separately, improving the signal-to-noise ratio of any single string, thereby facilitating the improvement of the signal-to-noise ratio of all strings 200. Furthermore, when adjusting the sensitivity of any string 200, each string 200 is connected to its corresponding sensor assembly 1, thereby avoiding mutual influence between the strings 200 and facilitating the sensitivity adjustment of any string 200. Furthermore, the guitar body 100 is also equipped with an MCU computing chip 60, which receives various electrical signals from the FPC assembly 40, processes the electrical signals, and then issues corresponding instructions.

[0040] Further, see Figure 2 Each of the sensor components 1 includes: a pickup seat 10, a pickup isolator 20, a pickup cover 30, an FPC component 40 and a ceramic pickup piece 50.

[0041] Further, see Figure 3-Figure 5 The pickup seat 10 is used to fix other sensor components located on the piano body 100, and the top of the pickup seat 10 can also be used for the strings 200 to pass through.

[0042] Specifically, the pickup base 10 includes a base 11 and a pickup tensioner 12. The base 11 is constructed from at least four side panels 111, connected end-to-end along a circumferential direction. The bottoms of the left and right side panels 111 each have at least one U-shaped groove 112, which secures the pickup base 10 to the piano body 100. The pickup tensioner 12 has a beveled hole 121 for passing the strings 200 through the hole 121, securing them to other components. In other words, the strings pass through the beveled hole 121 and are restrained by the pickup tensioner 12. The shape of the beveled hole 121 is not limited; for example, it can be the beveled hole described in the present invention. In this embodiment, the pickup tensioner 12 and the base 11 are integrally formed, reducing the number of parts and facilitating installation on the piano body 100. The material of the pickup tensioner 12 and the base 11 is not limited. In this embodiment, the pickup tensioner 12 and the base 11 are made of metal, such as stainless steel. Of course, they can also be improved according to actual needs and other better materials can be selected.

[0043] Furthermore, the sound pickup isolator 20 is located on the inner wall of the base 11. In this specific embodiment, the sound pickup isolator 20 is preferably made of silicone material, including but not limited to silicone material, as long as it can provide a sound insulation effect. By providing the sound pickup isolator 20, the vibration generated by the strings 200 can be buffered and isolated from the vibration generated by the piano body 100, so that the sensor component 1 reads less vibration from the piano body 100, and the signal anti-interference ability is improved. The sound pickup isolator 20 will block the mechanical vibration signal transmitted to the ceramic pickup plate 50 and attenuate the mechanical vibration signal transmitted to the pickup base 10, preventing the mechanical signals between the strings 200 from crosstalk. The sound pickup isolator 20 is tightly attached to the four side panels 111 of the base 11, so that it forms a cavity for placing the pickup cover 30.

[0044] Furthermore, the pickup cover 30 is located on the inner wall of the pickup isolator 20 and is used to transmit the vibration signals generated by the strings 200. Specifically, the pickup cover 30 includes a cover body 31 and a pickup cover 32. The cover body 31 is located below the pickup cover 32 and is mounted on the inner surface of the pickup isolator 20. The bottom of the pickup cover 32 is parallel to the top of the pickup base 10. In this embodiment, the pickup cover 30 is preferably made of metal, but other materials can be modified to meet actual needs.

[0045] Furthermore, the pickup cover 32 is trapezoidal in design, with a string-catching groove 33 defined at its top. The center of the groove 33 is smooth, intended to contact the string 200. The string 200 passes through the center of the groove 33 and then through the pickup tensioner 12. The sides of the groove 33 extend downward from the center to form inclined surfaces 331. This increases the contact area between the groove 33 and the string 200, making it easier and more accurate to sense the vibration of the string 200, such as the force exerted by the string 200 and whether the vibration direction is horizontal or vertical. Furthermore, because the string 200 and the pickup cover 32 are constantly in a compressed state, the downward force exerted by the string 200 is transmitted through the pickup cover 32. The inclined surfaces 331 convert the vertical force exerted by the finger on the string 200 into a lateral component, ensuring that the string 200 remains compressed laterally. Specifically, when the strings 200 are plucked to generate mechanical vibration, the vibration is transmitted to the ceramic pickup 50 through the pickup cover 32 .

[0046] Furthermore, the FPC assembly 40 is located inside the pickup cover 30. The FPC assembly 40 includes at least one exposed copper sheet 41, a connecting wire 42, and an FPC wire 43. The FPC assembly 40 is used to transmit different electrical signals from the ceramic pickup piece 50 and transmit the different electrical signals to the MCU computing chip 60 located in the piano body 100 for processing.

[0047] See also Figure 6 Specifically, a number of MCU computing chips 60 are provided in the piano body 100. The MCU computing chips 60 correspond one-to-one to the FPC components 40. Each ceramic pickup 50 in the piano body 100 transmits an electrical signal to the FPC component 40, and then the electrical signal is transmitted to the MCU computing chip 60 through the FPC component 40 for processing. Different sound effects are played through different received electrical signals.

[0048] Furthermore, the FPC assembly 40 includes two exposed copper sheets 41, arranged sequentially from top to bottom. Each exposed copper sheet 41 has at least one exposed copper area 44. The two exposed copper sheets 41 are connected by at least one connecting wire 42. This connecting wire 42 can be bent downward, allowing the upper exposed copper sheet 41 to be folded and positioned opposite the lower exposed copper sheet 41, so that the exposed copper areas 44 on the exposed copper sheets 41 correspond to each other. The length of the connecting wire 42 is set to correspond to the ceramic pickup plate 50, ensuring that the ceramic pickup plate 50 only fits over the exposed copper areas 44. An FPC cable 43 is connected to the bottom of the lower exposed copper sheet 41. The FPC cable 43 passes through the bottom of the pickup base 10, while the FPC assembly 40 is in close contact with the inner wall of one side of the pickup isolator 20. Furthermore, the end of the FPC cable 43 is connected to the MCU computing chip 60 via a connector (not shown).

[0049] Furthermore, the FPC assembly 40 is side-mounted within the pickup cover 30, ensuring that both the left and right sides of the FPC assembly 40, as well as the ceramic pickup plate 50 on the same side as the FPC assembly 40, contact the corresponding inner surfaces of the pickup cover 30. By employing a side-mounted structure that positions the FPC assembly and the ceramic pickup plate 50 vertically on the side of the strings, the present invention converts different excitation forces into different electrical signals, effectively reducing noise interference and improving the stability and sensitivity of the electrical signals. This allows for the precise capture and analysis of string vibration information. Furthermore, this side-mounted design can also be applied to smart guitars and other vibration information collection applications, expanding the scope of the technical solution.

[0050] Furthermore, in this specific implementation, the ceramic pickup 50 is sandwiched between the two exposed copper sheets 41. The ceramic pickup 50 is used to convert the collected different excitation forces into electrical signals. It should be particularly noted that the magnitude of the excitation force will form different electrical signals. The MCU computing chip 60 plays different sound effects according to the different electrical signals received. The ceramic pickup 50 collects the vibration of the strings rather than the direct squeezing force of the pickup isolator 20. The specific principle is that vibration is generated after the strings 200 are plucked. Because the strings 200 are pressed tightly against the pickup cover 32, the vibration generated by plucking the strings 200 will be transmitted to the pickup cover 32. Since the ceramic pickup 50 is in close contact with the pickup cover 30, the ceramic pickup 50 can collect different vibration frequencies. Specifically, the ceramic pickup plate 50 is provided with a positive electrode and a negative electrode. In this specific embodiment, multiple groups of ceramic pickup plates 50 can be added, including but not limited to one group; the ceramic pickup plates 50 can be positioned on the side walls and bottom of the pickup cover 30; and multiple groups of FPC components 40 corresponding to the ceramic pickup plates 50 can also be added, including but not limited to one group.

[0051] Furthermore, the ceramic pickup plate 50 is sandwiched between two opposing exposed copper areas 44. Both surfaces of the ceramic pickup plate 50 are in contact with the exposed copper areas 44. One exposed copper area 44 is connected to the positive terminal of the ceramic pickup plate 50, while the other exposed copper area 44 is connected to the negative terminal of the ceramic pickup plate 50. The area of ​​the ceramic pickup plate 50 is greater than or equal to the area of ​​the exposed copper plate 41. In this embodiment, two exposed copper plates 41 are used to wrap around the ceramic pickup plate 50. However, other conductors can be used to collect electrical signals from the ceramic pickup plate 50 depending on actual needs. Furthermore, the number of exposed copper plates 41 can be increased or decreased, and a single ceramic pickup plate 50 can be used to transmit electrical signals. We will not elaborate on these details here. Furthermore, the contact surface between the bottom of the pickup cover 30 and the pickup isolator 20 is a first contact surface 70, and the contact surface between the side of the exposed copper plate 41 without the exposed copper area 44 and the pickup isolator 20 is a second contact surface 80. By providing the first contact surface 70 and the second contact surface 80, the capture area of ​​the electrical signal is further increased, effectively solving the distortion and attenuation of the electrical signal, achieving higher data acquisition accuracy, enhancing the sensitivity of the present invention, and also making the force range of the strings 200 wider and the interference smaller.

[0052] Specifically, the ceramic pickup 50 is more sensitive to forces perpendicular to the second contact surface 80 than to forces perpendicular to the first contact surface 70. The excitation force generated by plucking the strings 200 is more sensitive to the ceramic pickup 50, meaning even slight forces can be detected, thus allowing for a wider range of forces to be applied to the strings 200. However, the interference force generated by the piano body 100 is perpendicular to the first contact surface 70, to which the ceramic pickup 50 is less sensitive. Therefore, the interference caused by the piano body 100 on the ceramic pickup 50 is less. Therefore, this side-mounted structure and increased contact area can enhance the sensitivity of the present invention, reduce interference, and improve the signal-to-noise ratio.

[0053] The structure of the string detection sensor component of the utility model is placed on a side surface of the strings on the piano body to form a side-mounted structure.

[0054] The solution of the utility model can be applied to musical instruments whose main playing method is to pluck strings to make them vibrate, such as guitar, guzheng, pipa, etc.

[0055] In the foregoing description of this specification, unless otherwise expressly specified or limited, terms such as "fixed," "mounted," "connected," or "connected" should be understood broadly. For example, the term "connected" can refer to a fixed connection, a removable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediary; or the internal connection between two components or the interaction between two components. Therefore, unless otherwise expressly defined in this specification, those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0056] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0057] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly specified.

[0058] Although this specification has shown and described a number of embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will conceive of many modifications, variations, and alternatives without departing from the concept and spirit of the present invention. It should be understood that in practicing the present invention, various alternatives to the embodiments of the present invention described herein may be employed. The appended claims are intended to define the scope of protection of the present invention and therefore cover modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A structure of a string detection sensor assembly, comprising a musical instrument body (100) and a plurality of musical strings (200), wherein at least one sensor assembly (1) is provided at the end of each musical string (200), characterized in that: Each of the sensing components (1) comprises: A pickup seat (10) is used for fixing and mounting other sensor components on the piano body (100), and the pickup seat (10) includes a seat body (11); A sound pickup isolator (20) is located on the inner wall of the base (11) to prevent crosstalk between mechanical signals of the strings (200); A pickup cover (30) is located on the inner wall of the pickup isolator (20), and the pickup cover (30) includes a cover body (31) and a pickup cover (32); An FPC assembly (40) is located in the pickup cover (30), the FPC assembly (40) comprising at least one exposed copper sheet (41), a connecting line (42) and an FPC line (43), the FPC assembly (40) being used to transmit electrical signals to an MCU computing chip (60) located in the piano body (100); The ceramic pickup piece (50) is used for converting collected different excitation forces into electrical signals, and the ceramic pickup piece (50) is provided with a positive electrode and a negative electrode.

2. The structure of the string detection sensor assembly according to claim 1, characterized in that: The pickup seat (10) further includes a pickup tensioning member (12). The seat body (11) is formed by splicing at least four side panels (111), wherein the bottoms of the side panels (111) on the left and right sides are respectively provided with at least one U-shaped groove (112). The pickup tensioning member (12) is provided with an inclined hole (121) for passing the strings (200) through the inclined hole (121).

3. The structure of the string detection sensor assembly according to claim 1, characterized in that: The cover body (31) is located below the pickup cover (32), the cover body (31) is sleeved on the inner surface of the pickup isolator (20), and the bottom of the pickup cover (32) is parallel to the top of the pickup seat (10).

4. The structure of the string detection sensor assembly according to claim 1, characterized in that: The pickup cover (32) is of trapezoidal design, with a string-holding groove (33) formed on the top. The middle of the string-holding groove (33) is smooth and is used to contact the strings. Both sides of the string-holding groove (33) extend downward from the middle to form an inclined surface (331).

5. The structure of the string detection sensor assembly according to claim 1, characterized in that: The pickup isolator (20) is closely attached to the four side plates (111) of the base (11), so as to form a cavity for accommodating the pickup cover (30).

6. The structure of the string detection sensor assembly according to claim 1, characterized in that: Two exposed copper sheets (41) are provided in the FPC assembly (40). The two exposed copper sheets (41) are arranged in sequence from top to bottom. At least one exposed copper area (44) is provided on the exposed copper sheet (41). The two exposed copper sheets (41) are connected by at least one connecting line (42). The connecting line (42) can be bent downward so that the exposed copper sheet (41) located above is arranged opposite to the exposed copper sheet (41) located below after being folded, so that the exposed copper areas (44) on the exposed copper sheets (41) correspond to each other. The bottom of the exposed copper sheet (41) located below is connected to the FPC line (43). The FPC line (43) passes through the bottom of the pickup seat (10). At the same time, the FPC assembly (40) is closely attached to the inner wall of one side of the pickup isolator (20).

7. The structure of the string detection sensor assembly according to claim 6, characterized in that: The ceramic sound pickup (50) is sandwiched between the two oppositely arranged copper-exposed areas (44), and both sides of the ceramic sound pickup (50) are in contact with the copper-exposed areas (44), one copper-exposed area (44) is connected to the positive electrode of the ceramic sound pickup (50), and the other copper-exposed area (44) is connected to the negative electrode of the ceramic sound pickup (50), and the area of ​​the ceramic sound pickup (50) is greater than or equal to the area of ​​the copper-exposed sheet (41).

8. The structure of the string detection sensor assembly according to claim 1, characterized in that: The FPC assembly (40) is laterally mounted in the pickup cover (30), so that the left and right sides of the FPC assembly (40) and the ceramic pickup piece (50) are on the same side of the FPC assembly (40). The ceramic pickup piece (50) can be provided in multiple groups, all of which are in contact with the corresponding inner surfaces on both sides of the pickup cover (30).

9. The structure of the string detection sensor assembly according to claim 1, characterized in that: An MCU computing chip (60) is provided in the piano body (100), and the MCU computing chip (60) is electrically connected to the FPC component (40) via a connector. The ceramic pickup (50) converts the generated excitation force into an electrical signal and transmits it to the FPC component (40). The magnitude of the excitation force forms different electrical signals, which are then transmitted to the MCU computing chip (60) for processing via the FPC component (40). The MCU computing chip (60) plays different sound effects according to the different electrical signals received.

10. The structure of the string detection sensor assembly according to claim 1, characterized in that: The contact surface between the bottom of the pickup cover (30) and the pickup isolator (20) is a first contact surface (70), and the contact surface between the side of the exposed copper sheet (41) without the exposed copper area (44) and the side corresponding to the pickup cover (30) is a second contact surface (80).

11. A guitar, characterized in that: The invention comprises a structure of a string detection sensor assembly as described in any one of claims 1 to 10.

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