Intelligent seven-stringed plucked instrument structure and interaction control method thereof

Abstract

The invention discloses an intelligent guqin structure and an interaction control method thereof, and deep fusion of a traditional musical instrument and intelligent hardware is realized by adopting a traditional guqin structure and integrating an intelligent sound box module. The device supports dual-mode switching between a playing mode (including intelligent sound amplification and teaching functions) and a playing mode (voice interaction and music playing), and solves the problems of poor portability and single function of the Guqin. The guqin box meets various requirements of guqin teaching, guqin playing, guqin music playing, smart home control through the guqin and the like, becomes a display artwork with artistry and functionality, and is suitable for places such as guqin rooms, families, music halls, museums and the like.

Description

Technical Field

[0001] The present invention relates to the cross-technical field of smart speakers and folk musical instruments, and in particular to an intelligent guqin device that integrates the traditional guqin playing function and the smart speaker function, and realizes dual-mode switching between instrument playing and audio playback through structural innovation and intelligent interaction. Background Art

[0002] Most existing smart speakers are based on modern acoustic design, with functions focused on voice interaction, music playback and home control, and lack deep integration with traditional culture. On the other hand, as an intangible cultural heritage, the traditional guqin requires professional training to play and is not portable, and lacks linkage functions with modern smart devices.

[0003] There are two types of product limitations in the current market: pure instrument-type guqin, which only supports physical playing and has no sound amplification or intelligent functions; electronic instrument speakers: most of them are general sound amplification devices that cannot restore the guqin's true structure and touch. Therefore, there is an urgent need for a device that can preserve the authenticity of the guqin while expanding intelligent interaction and acoustic optimization. Summary of the invention

[0004] Purpose of the invention: To provide an intelligent guqin with sound pickup and amplification and intelligent interactive control functions, which supports free switching between playing mode and playback mode, and can realize the sound amplification, teaching and multimedia linkage functions of guqin playing through intelligent interaction. It can meet various needs such as guqin teaching, guqin performance, guqin music playback, and using guqin to control smart homes, and become a decorative artwork with both artistic and functional qualities.

[0005] Structural design: The structural design consists of two parts: the smart guqin body and the smart speaker module.

[0006] Intelligent guqin body: The guqin body is made according to the standard guqin style (such as Zhongni style and Fuxi style), including the body, seven strings, thirteen frets, Yueshan, dragon gums, goose feet and other parts. The surface of the guqin is made of paulownia / fir wood, the bottom of the guqin is made of zelkova wood, and the strings are silk strings or nylon steel core strings; the body of the guqin is hollow inside, which serves as the sound box cavity, and sound holes are opened on the bottom of the guqin to optimize acoustic resonance; the intelligent guqin body has many styles such as Fuxi style, Shennong style, Zhongni style, Lianzhu style, Luoxia style, Lingji style, and banana leaf style. A vibration sensor is set in the middle part of the surface of the intelligent guqin near Yueshan, and a pickup is set at the position of Longchi or Fengzhao. A string sensor that is tightly attached to the seven strings is installed on the Yueshan to sense the state of the strings and the changes of the strings when people pluck them. There are also seven string LED lights next to the string sensors; each fret position is equipped with a fret LED light, which cooperates with the teaching auxiliary system in the built-in intelligent interactive system to indicate the fingering position through the fret LED light and the string LED light.

[0007] Smart speaker module: Hardware unit: microphone array (directional pickup of guqin body vibration and voice commands), high-fidelity speaker, processor (audio signal processing and mode switching), storage module (storage of guqin music library and user recordings), communication module (WiFi / Bluetooth), lithium battery (supports 10 hours of battery life), power adapter; Software unit: built-in intelligent interactive system (voice assistant), playing pattern recognition algorithm (analyzing string vibration frequency and fingering based on vibration sensor and pickup signal).

[0008] Functional modes. Functional modes include playing mode and playback mode. Playing mode: the user directly plays the strings to generate physical sound waves, while the vibration sensor and pickup collect signals. After analysis by the sound card processor, you can choose between original sound output and intelligent sound amplification. Original sound output: only retain the natural resonance of the instrument body; Intelligent sound amplification: enhance the volume and optimize the timbre through the speaker (such as simulating the timbre of guqin from different eras); Supports teaching assistance functions (indicator lights indicate the string positions). Playback mode: Switch to a normal smart speaker, support voice-activated music, weather reports, and smart home control; the strings can be used as a touch interface (such as sliding to adjust the volume, pressing to switch tracks).

[0009] Interactive control method. Mode switching: through physical buttons on the side of the piano, voice commands (such as "switch to play mode") or APP remote control; sound intensity adjustment: adaptive adjustment according to ambient noise, or manual adjustment by sliding the strings with gestures. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 : Three-view structure diagram of the intelligent guqin, including: 1. Guqin body; 2. Seven strings; 3. Thirteen frets (with LED lights); 4. Yueshan; 5. Dragon gums; 6. Goose feet; 7. Dragon pool; 8. Phoenix marsh; 9. Phoenix tongue; 10. Resonance chamber; 11. Vibration sensor (piezoelectric ceramic); 12. Pickup; 13. Dew; 14. Microphone array; 15. High-fidelity speaker; 16. Processor, storage module, communication module, power amplifier module; 17. Lithium battery; 18. Various audio interfaces; 19. String sensor; 20. String LED lights

[0011] Figure 2 :Hardware module connection block diagram. Shows the interaction logic between the processor and the sensor, sound card, amplifier, high-fidelity speaker, communication module, LED light, and power supply;

[0012] Figure 3 :Playing mode workflow diagram.

[0013] Figure 4 : Play mode workflow diagram DETAILED DESCRIPTION

[0014] Body manufacturing: Figure 1 As shown, a resonance box 10 is made according to traditional guqin craftsmanship, a high-fidelity speaker 15 is embedded inside, a vibration sensor 11 is set at the middle part of the guqin surface near the Yueshan 4, a pickup 12 is set at the dragon pool 7 or the phoenix pond 8, seven string sensors 19 and seven string LED lights 20 are installed on the Yueshan 4 on the guqin surface, and the string LED lights 20 have two colors, green and red, which are respectively normal state and error / abnormal state, and are used to indicate the state of the strings and whether the plucking fingering of the practitioner is normal;

[0015] Signal processing: When playing, the vibration sensor (piezoelectric ceramic) 11 collects string vibration signals, and the pickup 12 collects air-conducted sound waves. The processor 16 fuses the two types of signals and calls the timbre library (such as "rich timbre of the Tang Dynasty" and "clear timbre of the Qing Dynasty") to optimize the output through the power amplifier. A pickup 12 is set at the position of the dragon pool 7 or the phoenix pond 8. If necessary, a pickup 12 can be set at the position of the dragon pool 7 or the phoenix pond 8 respectively.

[0016] Intelligent interaction: The voice wake-up word is "open the guqin" or a customized voice wake-up word, and supports commands such as "record the current playing" and "share to social platforms"; and it can connect to a smartphone via WiFi / Bluetooth to play guqin music in the smartphone.

[0017] Power management: In playing mode, power is given priority to sensors and low-power processors, and in playback mode, full-function modules are enabled.

[0018] The intelligent guqin of the present invention has the dual attributes of a musical instrument and a household appliance; it combines vibration sensing, acoustic optimization algorithms and the resonance principle of traditional musical instruments to achieve high-fidelity sound amplification; and the strings are reused as a touch interface to improve the intuitiveness of operation.

Claims

1. A structure of an intelligent guqin and an interactive control method thereof, characterized in that: include: The 1:1 replica of the traditional guqin body includes complete strings, frets and resonance chamber structure; the smart speaker module integrated into the body includes a microphone array, speaker, processor, and communication module; a software and hardware switching system that supports playing mode and playback mode; the smart sound amplification function can be enabled in playing mode to optimize the tone output through sensors and algorithms.

2. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: The 1:1 traditional guqin body includes complete strings, frets and resonance cavity structure. There are many styles including Fuxi style, Shennong style, Zhongni style, Lianzhu style, Luoxia style, Lingji style, Banana Leaf style, etc. It can be played like a traditional guqin and produce sound through the resonance cavity of the body.

3. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: A string sensor that is tightly attached to the seven strings is installed on the chenglu of the Yueshan area of ​​the smart guqin body to sense the state of the strings and the changes in the strings when people pluck them; the smart guqin body is equipped with a guqin emblem LED light and seven string LED lights are installed on the chenglu.

4. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: In the playing mode: a vibration sensor (piezoelectric ceramic piece) is arranged under the strings, one or two pickups are arranged inside the instrument body near the dragon pool and the phoenix pond, and the signal is output after being fused by the processor; the sound amplification tone library pre-stores a variety of guqin models and historical tone data.

5. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: The high-fidelity speaker is installed in the intelligent guqin body, reusing the resonance cavity of the guqin body.

6. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: The high-fidelity speaker and the pickup cannot work at the same time, but it can work with the vibration sensor (piezoelectric ceramic piece) at the same time. When the high-fidelity speaker is amplifying the sound, only the vibration sensor (piezoelectric ceramic piece) picks up the sound of the guqin.

7. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: The sound source with algorithm-optimized tone can be output through a variety of sound source output ports, supporting the output of vibration sensors and pickups in XLR, TRS, USB and microphone formats after algorithm-optimized music, and also supporting the sound source output of the speaker's RCA interface, 3.5mm headphone interface and optical fiber interface.

8. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: The body of the instrument is made of paulownia wood top and zelkova wood bottom, the strings are nylon-wrapped steel core strings, and the goose foot has a built-in magnetic charging port.

9. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: Supports directly entering the playing mode through string touch gestures; in the playback mode, string touch gestures can be used to control the volume, track and timbre in the playback mode.

10. The structure of the intelligent guqin and the interactive control method thereof according to claim 1 is characterized in that: Built-in teaching assistance system, indicating fingering positions through thirteen guitar badge LED lights and seven string LED lights.

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