A Haptic Robot Finger Designed for Guqin Instrument Playing

Area of Science:

• Robotics
• Haptics
• Embodied Intelligence

Background:

• Humanoid robotics and embodied intelligence are advancing rapidly.
• Current musical instrument-playing robots often use open-loop control, limiting their ability to play complex instruments.
• Instruments like the violin, guitar, and guqin require dexterous manipulation and tactile feedback.

Purpose of the Study:

• To design and validate a high-precision tactile-sensing finger for robotic applications.
• To create a biomimetic multimodal haptic fingertip mimicking human finger shape.
• To test the fingertip's capabilities on challenging guqin string-contact tasks.

Main Methods:

• Developed a biomimetic fingertip with tactile sensing capabilities.
• Mimicked the shape of a human fingertip and fingernail.
• Validated the tactile finger on guqin playing tasks: open-string, stopped-note, harmonic tuning, and bimanual coordination.

Main Results:

• The tactile-sensing finger demonstrated capability in precise string-contact tasks.
• The biomimetic design allowed for nuanced interaction with the guqin.
• The system successfully integrated tactile sensing with robotic control for musical instrument interaction.

Conclusions:

• The developed high-precision tactile-sensing finger represents a significant advancement in robotic dexterity.
• This technology bridges tactile sensing and robotics, enabling robots to interact with instruments requiring fine motor skills.
• Applications include world heritage conservation and cultural dissemination through advanced robotics.