Intelligent musical instrument string sweeping device

Abstract

The utility model discloses an intelligent musical instrument string sweeping device, which comprises a base, the base is provided with a plectrum structure, a control unit and a three-axis acceleration sensor, and the plectrum structure comprises a plurality of rotatably arranged plectrum and a detection device used for detecting the rotation angle of the plectrum. The detection device is electrically connected with the plectrum and the control unit, the three-axis acceleration sensor is electrically connected with the plectrum and detects the motion trail and motion acceleration of the plectrum, and the three-axis acceleration sensor is electrically connected with the control unit and transmits motion data of the plectrum in real time; through the combination of the three-axis acceleration sensor and the photoelectric encoder, high-precision motion capture is realized, so that the system can accurately detect the speed, the track and the force of the plectrum and generate high-quality note output.

Description

Technical Field

[0001] The utility model relates to the technical field of musical instruments, and in particular to an intelligent string-strumming device for musical instruments. Background Art

[0002] In modern musical instrument design, especially smart guitars, accurately detecting the force and velocity of a pick to control note output is a key issue. Traditional mechanical or magnetic sensing technologies, while effective, have limitations in accuracy, anti-interference capabilities, and response speed.

[0003] Existing technology, such as patent CN218957381U, describes a design that uses a magnetic induction device to detect the movement of a pick. This design controls the force and speed of notes by detecting the speed and angle of the pick's movement. However, magnetic induction devices lack anti-interference capabilities and accuracy, making them difficult to meet the requirements of high precision and fast response, thus requiring improvement. Utility Model Content

[0004] The purpose of the utility model is to provide an intelligent musical instrument strumming device to overcome the deficiencies in the prior art and improve detection accuracy, anti-interference capability and response speed.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The present application discloses an intelligent musical instrument strumming device, comprising a base, on which a plectrum structure, a control unit and a three-axis acceleration sensor are provided. The plectrum structure comprises a plurality of rotatable plectrums and a detection device for detecting the rotation angle of the plectrums. The detection device is electrically connected to the plectrums and the control unit. The three-axis acceleration sensor is electrically connected to the plectrums and detects the motion trajectory and motion acceleration of the plectrums. The three-axis acceleration sensor is electrically connected to the control unit and transmits the motion data of the plectrums in real time.

[0007] Preferably, the detection device includes a resistive potentiometer for detecting the rotation angle of the paddle, wherein the resistive potentiometer is installed at the rotation center of the paddle and is electrically connected to the paddle and a control unit.

[0008] Preferably, the detection device includes a photoelectric encoder for detecting the rotation angle of the paddle, and the photoelectric encoder is installed at the rotation center of the paddle and is electrically connected to the paddle and a control unit.

[0009] Preferably, the detection device includes a capacitance detection device for detecting the force and angle of contact between the pick and the finger, and the capacitance detection device is electrically connected to the control unit and transmits the collected data in real time.

[0010] Preferably, an end fixing bracket is provided on the base. A rotating shaft is rotatably connected to the end fixing bracket. The rotating shaft is the rotation center of the paddle. The rotating shaft is composed of a plurality of segmented shafts rotatably connected in sequence. The paddle is fixedly connected to the segmented shaft, and a return spring is provided on the segmented shaft and the segmented shaft is driven to return by the return spring.

[0011] Preferably, a central shaft fixing bracket is provided on the base. The central shaft fixing bracket is rotatably connected to the segmented shaft.

[0012] Preferably, a paddle limiting rib for limiting the rotation angle of the paddle is provided on the base. A cooperating limiting block is provided on the segmented shaft. The cooperating limiting block cooperates with the paddle limiting rib.

[0013] Preferably, an external base is further included. The structure between the paddle and the segmented shaft is detachable. The external base is electrically connected to the control unit. After the paddle is detached from the segmented shaft, the paddle is electrically connected to the external base, and data is collected through the three-axis acceleration sensor.

[0014] Preferably, a resistive potentiometer for detecting changes in resistance value to measure the rotation angle and position of the paddle is provided on the segmented shaft. The resistive potentiometer is electrically connected to the control unit and transmits data in real time.

[0015] The beneficial effects of the present utility model are as follows:

[0016] (1) By combining the three-axis acceleration sensor and the optical encoder, high-precision motion capture is achieved, enabling the system to accurately detect the speed, trajectory, and force of the paddle, and generate high-quality note outputs.

[0017] (2) By using the resistive potentiometer to detect changes in the rotation angle and position of the paddle, compared with traditional magnetic induction devices, the resistive potentiometer has obvious advantages in terms of accuracy, anti-interference ability, and response speed. Its linear output characteristic ensures the accuracy of note control.

[0018] (3) Through the structural design of this device, the system can automatically adjust note outputs and feedback forces according to different playing styles and force data, adapting to various music styles and enhancing the playing experience.

[0019] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of a strumming device of an intelligent musical instrument of the present utility model;

[0021] Figure 2It is a three-dimensional structure schematic diagram of a partial structure of an embodiment of the present utility model;

[0022] Figure 3 is the usage state of a partial structure of an embodiment of the present utility model Figure 1 ;

[0023] Figure 4 is the usage state of a partial structure of an embodiment of the present utility model Figure 2 ;

[0024] Figure 5 is a planar structure schematic diagram of an embodiment of the present utility model;

[0025] Figure 6 is an embodiment of the present utility model Figure 5 a planar structure cross-sectional view at A-A in;

[0026] In the figure: 1, base; 2, PCB; 3, paddle; 301, three-axis acceleration sensor; 4, end fixing bracket; 401, return spring; 402, middle-axis fixing bracket; 5, rotating shaft; 501, segmented shaft; 6, paddle limiting rib; 601, mating limiting block; 7, detection device. Specific embodiments

[0027] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0028] Refer to Figures 1 - 6 , an embodiment of the present utility model provides an intelligent musical instrument strumming device, including a base 1, a paddle structure, a control unit, and a three-axis acceleration sensor 301 are provided on the base 1, the paddle structure includes a plurality of rotatably provided paddles 3 and a detection device 7 for detecting the rotation angle of the paddle, the detection device 7 is electrically connected to the paddle 3 and the control unit, the three-axis acceleration sensor 301 is electrically connected to the paddle 3 and detects the movement trajectory and movement acceleration of the paddle 3, and the three-axis acceleration sensor 301 is electrically connected to the control unit and transmits the movement data of the paddle 3 in real time.

[0029] The control unit can dynamically adjust the sensitivity of the detection device and the three-axis acceleration sensor to adapt to different playing styles and intensity changes

[0030] The detection device 7 includes a resistive potentiometer for detecting the rotation angle of the paddle 3. The resistive potentiometer is installed at the rotation center of the paddle 3 and is electrically connected to the paddle 3 and the control unit.

[0031] The detection device 7 includes an optical encoder for detecting the rotation angle of the paddle 3. The optical encoder is installed at the rotation center of the paddle 3 and is electrically connected to the paddle 3 and the control unit.

[0032] The detection device 7 includes a capacitance detection device for detecting the force and angle of contact between the paddle 3 and the finger. The capacitance detection device is electrically connected to the control unit and transmits the collected data in real time.

[0033] An end fixing bracket 4 is provided on the base 1. A rotating shaft 5 is rotatably connected to the end fixing bracket 4. The rotating shaft 5 is composed of a plurality of segmented shafts 501 rotatably connected in sequence. The paddle 3 is fixedly connected to the segmented shaft 501, and the segmented shaft 501 is connected to the return spring 401 and is driven by the return spring 401 to return to its original position.

[0034] A middle shaft fixing bracket 402 is provided on the base 1. The middle shaft fixing bracket 402 is rotatably connected to the segmented shaft 501.

[0035] A paddle limiting rib 6 for limiting the rotation angle of the paddle 3 is provided on the base 1. A matching limit block 601 is provided on the segmented shaft 501, and the matching limit block 601 cooperates with the paddle limiting rib 6.

[0036] An external base is further included. The structure between the paddle 3 and the segmented shaft 501 is detachable. The external base is electrically connected to the control unit. After the paddle 3 is detached from the segmented shaft 501, it is electrically connected to the external base, and data is collected through the three-axis acceleration sensor 301.

[0037] A resistive potentiometer for detecting the change in resistance value to measure the rotation angle and position of the paddle 3 is provided on the segmented shaft 501. The resistive potentiometer is electrically connected to the control unit and transmits data in real time.

[0038] 1. System composition and connection relationship

[0039] 1.1 Paddle structure

[0040] · Components: The paddle structure includes a paddle, a resistive potentiometer, and a three-axis acceleration sensor. The resistive potentiometer is used to detect the rotation angle and position of the paddle, and the three-axis acceleration sensor is used to detect the acceleration information of the paddle.

[0041] · Connection relationship: The resistive potentiometer and the triaxial acceleration sensor are connected to the intelligent control unit through a signal transmission cable, and the data collected by the sensor is transmitted to the control unit in real time for processing. This combination enables the system to capture both the static angle information and the dynamic acceleration information of the pick, thus achieving precise note control.

[0042] 1.2 Photoelectric Encoder

[0043] · Components: The photoelectric encoder is installed at the bottom of the pick and is used to detect the movement trajectory and speed of the pick.

[0044] · Connection relationship: The photoelectric encoder is connected to the intelligent control unit and transmits movement data in real time for controlling the generation of notes and adjusting the performance effects.

[0045] 1.3 Triaxial Acceleration Sensor

[0046] · Components: The triaxial acceleration sensor is installed inside or near the pick and is used to detect the acceleration changes of the pick in the three-dimensional space of X, Y, and Z. The sensor can capture dynamic information such as the movement speed, direction, and force of the pick.

[0047] · Connection relationship: The triaxial acceleration sensor is electrically connected to the intelligent control unit, and the three-dimensional acceleration data collected by the sensor is transmitted to the control unit in real time. The control unit uses this data to generate note outputs and adjusts the intensity and rhythm of the music performance according to the performer's operations.

[0048] Integration of the triaxial acceleration sensor: The triaxial acceleration sensor is used to capture the acceleration information of the pick, providing the ability to dynamically detect the movement of the pick. The sensor can detect the movement changes of the pick in three dimensions and convert them into note output parameters to achieve rich music performance.

[0049] In a feasible embodiment, the photoelectric encoder is replaced by a resistive potentiometer, including the following:

[0050] 1.2 Resistive Potentiometer

[0051] · Components: The resistive potentiometer is installed at the rotation axis of the pick. Its working principle is based on the movement of the sliding contact on the resistor body, thereby changing the resistance value and generating a corresponding output voltage. The potentiometer measures the rotation angle and position of the pick by detecting the change in the resistance value.

[0052] · Connection relationship: The resistive potentiometer is connected to the intelligent control unit and transmits angle data to the control unit in real time. The control unit adjusts parameters such as the volume, pitch, and timbre of the notes according to the received angle information to ensure that the output music performance is consistent with the performer's intentions. Figure 1 Consistent.

[0053] Application of the resistive potentiometer: The resistive potentiometer is used to detect the rotation angle and position change of the pick. Compared with traditional magnetic induction devices, the resistive potentiometer has obvious advantages in terms of accuracy, anti-interference ability and response speed. Its linear output characteristic ensures the accuracy of note control.

[0054] System integration and control: The intelligent control unit integrates data from the resistive potentiometer and the three-axis acceleration sensor, and precisely generates note output through internal algorithms. The system can dynamically adjust the intensity, duration and rhythm of the note output according to real-time sensor data to ensure that the performance effect conforms to the performer's operation intention.

[0055] 2. Working principle and structural features

[0056] 2.1 Working principle

[0057] · When the user uses the pick to pluck the string, the resistive potentiometer detects the rotation angle and position of the pick in real time, and the three-axis acceleration sensor detects the acceleration and movement direction of the pick. All sensor data is transmitted to the intelligent control unit, and the control unit generates note output based on this data.

[0058] 1. Signal processing: The control unit receives the angle data of the resistive potentiometer and the acceleration data of the three-axis acceleration sensor, processes these data through internal algorithms, and analyzes the movement trajectory, speed and angle change of the pick. The control unit generates corresponding note signals based on the processed data and outputs high-quality music performance through the connected audio system.

[0059] 2. Real-time feedback: The system can let the performer feel the immediate effect of the operation through audio feedback. The intensity, duration and rhythm of the note can all be adjusted according to real-time sensor data to achieve the best performance effect.

[0060] 2.2 Structural features

[0061] · Pick design: The pick design integrates a resistive potentiometer and a three-axis acceleration sensor. The potentiometer detects the rotation angle of the pick, and the three-axis acceleration sensor captures the acceleration information of the pick. The combination of the two can achieve a comprehensive detection of the pick movement.

[0062] · System integration: The resistive potentiometer and the three-axis acceleration sensor are connected to the intelligent control unit through standard cables. The system structure is compact, ensuring that sensor data can be transmitted and processed quickly and accurately.

[0063] 3. Working process

[0064] · Startup and calibration:

[0065] 1. System Startup: When the user starts the system, the resistive potentiometer and triaxial accelerometer begin to work. The system automatically calibrates the sensors to ensure optimal sensitivity.

[0066] 2. Calibration Process: The system uses a preset standard curve to calibrate the relationship between the resistance change of the resistive potentiometer and the rotation angle of the paddle to ensure the accuracy of angle detection. Simultaneously, the three-axis accelerometer is automatically calibrated according to the system's initial settings to ensure the accuracy of acceleration detection.

[0067] Performance: The user plucks the strings according to the music requirements. The system detects the pick operation in real time, generates corresponding notes, and provides feedback.

[0068] 1. Real-time Detection: During a performance, a resistive potentiometer measures the pick's rotation angle, and a three-axis accelerometer measures its acceleration. All this data is transmitted to an intelligent control unit, which integrates this information to generate the corresponding note.

[0069] 2. Data processing: The intelligent control unit processes the data from the resistive potentiometer and the three-axis accelerometer, converts the angle and acceleration information into note output signals through internal algorithms, and generates musical performance that meets the performer's operating intentions.

[0070] Dynamic Adjustment: During performance, the system automatically adjusts feedback intensity and note generation rules based on the user's playing style, velocity, and acceleration to ensure the best possible playing experience.

[0071] 1. Real-time Adjustment: During performance, the system can dynamically adjust the output parameters of notes based on real-time detected pick angle and acceleration information. For example, when the system detects an increase in pick acceleration, it can automatically increase the volume of a note or extend its duration.

[0072] 2. Optimize the playing experience: The system can automatically optimize the sensor sensitivity and response speed based on the player's operating habits, ensuring that every plucking movement can be accurately and quickly reflected in the note output, thereby improving the smoothness and naturalness of the playing experience.

[0073] Among them, in a feasible embodiment, the distinguishing feature is that it is not a photoelectric encoder, but a laser rangefinder that is substituted.

[0074] In a feasible embodiment, a force detection system based on capacitive sensing is included instead of detection through a mechanical structure, so as to reduce the influence of the mechanical structure on the overall accuracy.

[0075] Specific implementation 1: Combination of resistive potentiometer and three-axis acceleration sensor

[0076] 1. Installation Location: The resistive potentiometer is installed at the rotating shaft of the pick, and it can detect the rotation angle and position change of the pick in real time. The three-axis acceleration sensor is used to capture the acceleration information of the pick. The positions of the two are designed in a closely integrated manner to ensure that the rotation angle and acceleration information of the pick can be comprehensively detected.

[0077] 2. Signal Processing: The resistive potentiometer detects the rotation angle of the pick in real time, and the three-axis acceleration sensor detects the acceleration information of the pick in real time. The intelligent control unit comprehensively processes these data to generate a note output signal. The output note can adjust the expressiveness of the note in real time according to the operation force and angle change of the pick.

[0078] Specific Embodiment 2: Combination of Photoelectric Encoder and Three-Axis Acceleration Sensor (Alternative Solution)

[0079] 1. Installation Location: The photoelectric encoder is installed at the rotating shaft of the pick, replacing the resistive potentiometer to detect the rotation angle of the pick. The photoelectric encoder precisely measures the rotation angle of the pick by emitting a light beam and detecting the change of the reflected light.

[0080] 2. Signal Processing: The data of the photoelectric encoder and the three-axis acceleration sensor are processed by the intelligent control unit to generate a note signal, ensuring that the note output for each pick action is consistent with the user's operation.

[0081] 3. Application Scenario: The high-precision detection of the photoelectric encoder enables the system to achieve more refined note control, which is suitable for scenarios that require high-precision performance control.

[0082] Specific Embodiment 3: Comprehensive Application and Dynamic Adjustment of the System

[0083] 1. System Startup and Calibration: The system starts the resistive potentiometer or photoelectric encoder and the three-axis acceleration sensor in sequence, and automatically completes self-check and calibration to ensure that the accuracy and sensitivity of all sensors are in the best state.

[0084] 2. Real-Time Detection and Feedback: The system detects the operation information of the pick in real time, and the intelligent control unit integrates the data to generate a corresponding note signal, ensuring that each pick operation can be immediately reflected in the note output.

[0085] 3. Dynamic Adjustment and Optimization: The system automatically identifies the user's playing style, and by adjusting the sensitivity and response speed of the sensors, it provides precise and coherent music output to meet the needs of different players.

[0086] Specific Embodiment 4: Plug-and-Play Design of the Pick and Application of the External Base

[0087] 1. Plug-and-Play Design of the Pick and the Base:

[0088] (1)Plug-and-play structure: The design between the pick and the segmented shaft is a plug-and-play structure, allowing users to easily remove the pick from the segmented shaft. This design facilitates the replacement and maintenance of the pick.

[0089] (2)External base for power supply and communication: After removing the pick, the pick can be powered and communicate through an external base. The external base is connected to the pick and the guitar body by wired or wireless means, ensuring that the pick can still work properly without being installed on the guitar.

[0090] 2. Independent use of the pick:

[0091] (1)Independent function of the three-axis acceleration sensor: When the pick is used independently, the built-in three-axis acceleration sensor can separately obtain the status information of the pick, including data such as force, speed, and angle. These data are transmitted to the guitar body through the base to achieve remote control and data transmission.

[0092] (2)Flexibility and portability: Through the external base, users can use the pick in different scenarios. For example, they can use the pick independently during playing or replace the pick during playing without interrupting the performance.

[0093] 3. Integrated use of the pick and the base:

[0094] (1)Integrated design: The pick and the external base can be combined for integrated use. The base provides stable power supply and communication interfaces, while the pick synchronizes data and note control signals with the guitar body through wireless or wired means.

[0095] (2)Application scenarios: This design is particularly suitable for scenarios that require flexible operation, such as live performances or teaching. Users can quickly adjust the pick configuration according to their needs without replacing the entire system.

[0096] Through these specific implementation manners, the intelligent pick system can provide highly precise control and feedback during playing, which is particularly suitable for complex playing techniques and diverse music styles. The dynamic adjustment and user-defined functions of the system further enhance the personalization and comfort of playing.

[0097] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, or improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An intelligent musical instrument strumming device, characterized in that: It includes a base (1), on which there is a paddle structure, a control unit and a three-axis acceleration sensor (301). The paddle structure includes a number of rotatably arranged paddles (3) and a detection device (7) for detecting the rotation angle of the paddle (3). The detection device (7) is electrically connected to the paddle (3) and the control unit. The three-axis acceleration sensor (301) is electrically connected to the paddle (3) and detects the movement trajectory and movement acceleration of the paddle (3). The three-axis acceleration sensor (301) is electrically connected to the control unit and transmits the movement data of the paddle (3) in real time.

2. The intelligent musical instrument strumming device according to claim 1, wherein: The detection device (7) includes a resistive potentiometer for detecting the rotation angle of the paddle (3). The resistive potentiometer is installed at the rotation center of the paddle (3) and is electrically connected to the paddle (3) and the control unit.

3. The intelligent musical instrument strumming device according to claim 1, wherein: The detection device (7) includes an optical encoder for detecting the rotation angle of the paddle (3). The optical encoder is installed at the rotation center of the paddle (3) and is electrically connected to the paddle (3) and the control unit.

4. The intelligent musical instrument strumming device according to claim 1, wherein: The detection device (7) includes a capacitance detection device for detecting the force and angle of contact between the paddle (3) and the finger. The capacitance detection device is electrically connected to the control unit and transmits the collected data in real time.

5. The intelligent musical instrument strumming device according to claim 1, wherein: An end fixing bracket (4) is provided on the base (1). A rotating shaft (5) is rotatably connected to the end fixing bracket (4). The rotating shaft (5) is the rotation center of the paddle (3). The rotating shaft (5) is composed of a number of segmented shafts (501) rotatably connected in sequence. The paddle (3) is fixedly connected to the segmented shaft (501), and a return spring (401) is provided on the segmented shaft (501) and is driven by the return spring (401) to return.

6. The intelligent musical instrument strumming device according to claim 5, wherein: A middle shaft fixing bracket (402) is provided on the base (1). The middle shaft fixing bracket (402) is rotatably connected to the segmented shaft (501).

7. The intelligent musical instrument strumming device according to claim 5, characterized in that: A paddle limiting rib (6) for limiting the rotation angle of the paddle (3) is provided on the base (1). A matching limit block (601) is provided on the segmented shaft (501). The matching limit block (601) cooperates with the paddle limiting rib (6).

8. The intelligent musical instrument strumming device according to claim 5, wherein: It further includes an external base. The connection between the paddle (3) and the segmented shaft (501) is a detachable structure. The external base is electrically connected to the control unit, and after the paddle (3) is detached from the segmented shaft (501), it is electrically connected to the external base, and data collection is carried out through the three-axis acceleration sensor (301).

9. The intelligent musical instrument strumming device according to claim 5, characterized in that: A resistive potentiometer for detecting the change in resistance value to measure the rotation angle and position of the paddle (3) is provided on the segmented shaft (501). The resistive potentiometer is electrically connected to the control unit and transmits data in real time.

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