Robot Music Motion Control for Dynamic Instrument Playing
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Solution Overview
Problem
Existing robots playing musical instruments, such as drum sets, exhibit low personification and insufficient dynamic characteristics, with limited versatility and universality, often requiring specialized designs for specific tasks.
Innovation Solution
A motion control method for robots that involves obtaining a music file, determining head positions based on played instruments, and controlling the robot's playing parts and head to generate sounds and positions dynamically, with adaptive preprocessing to accommodate various musical instruments and movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If robots use specialized designs for specific musical instruments, then the instrument playing accuracy is improved, but the device complexity and lack of universality increase
Solution Approach 1:
The patent implements a universal robot platform capable of playing multiple musical instruments through software configuration rather than hardware specialization. The system uses a standardized mechanical structure with adjustable parameters that can adapt to different instruments (drums, piano, guitar, etc.), eliminating the need for specialized designs for each instrument while maintaining playing accuracy through parameter optimization.
Solution Approach 2:
The patent employs parameter-based adaptation where the robot's motion control parameters, joint angles, and playing characteristics are dynamically adjusted based on the target instrument. By changing control parameters rather than physical structure, the system achieves high accuracy for different instruments without requiring specialized hardware designs, thus resolving the contradiction between accuracy and universality.
2Ease of operation
If robots execute simple periodic actions, then the ease of operation is improved, but the action diversity and personification decrease
Solution Approach 1:
The patent transitions from static, pre-programmed periodic actions to dynamic, real-time motion control. The system continuously adjusts the robot's movements based on music tempo, rhythm, and instrument characteristics, enabling diverse and personified actions while maintaining ease of operation through automated parameter adjustment. This allows the robot to perform complex musical expressions without requiring manual programming of each action sequence.
Solution Approach 2:
The patent implements feedback mechanisms where the robot's motion control system receives real-time information about music properties and instrument characteristics, then dynamically adjusts playing actions accordingly. This feedback loop enables the robot to execute diverse, personified actions that respond to musical context while maintaining operational simplicity through automated control, resolving the contradiction between action simplicity and diversity.
3Manufacturing precision
If robots use fixed motion patterns for playing, then the manufacturing precision is improved, but the dynamic characteristics and performance effect deteriorate
Solution Approach 1:
The patent replaces fixed motion patterns with dynamic motion control that adapts to different musical contexts. The system calculates optimal trajectories and parameters in real-time based on music tempo, rhythm, and instrument type, maintaining playing precision through computational methods while achieving rich dynamic characteristics. This allows the robot to preserve manufacturing-level precision without being constrained by rigid, pre-defined motion patterns.
Solution Approach 2:
The patent achieves both precision and dynamics by dynamically adjusting control parameters rather than relying on fixed patterns. The system modifies motion parameters, force application, and timing based on real-time musical requirements, maintaining high playing precision through parameter optimization while achieving diverse dynamic characteristics. This parameter-based approach resolves the contradiction between precision and adaptability.
Data Source
AI summary
A motion control method applied to a robot and the robot are provided. The method includes: obtaining a music file to be performed, where the music file includes a plurality of playing times and at least one played musical instrument at each playing time; determining a head position at each playing time according to the at least one played musical instrument at each playing time; and controlling a playing part and a head of the robot to execute a playing action, according to the at least one played musical instrument and the head position at each playing time, to allow a corresponding played musical instrument to generate a sound and allow the head to be in a corresponding head position at each playing time.