Exercise Equipment Music Synchronization Control
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Solution Overview
Problem
Existing exercise equipment lacks the ability to synchronize user movement with music beats, leading to suboptimal workout experiences due to inconsistent resistance forces.
Innovation Solution
An exercise system with a movable input member and a controller that adjusts resistance force based on speed and phase errors relative to a music beat, using speed control and phase control to synchronize user movement with the music, thereby enhancing the workout experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If resistance force is controlled to synchronize with music beat, then workout engagement and effectiveness are improved, but device complexity increases due to added control systems
Solution Approach 1:
The controller continuously monitors the user's movement speed and phase relative to the music beat, comparing measured values with target values. Based on the speed error and phase error feedback, the controller dynamically adjusts the resistance force to maintain synchronization, thereby improving workout effectiveness through adaptive control.
Solution Approach 2:
The resistance force is made dynamic rather than static, allowing it to vary in real-time based on the user's performance and music synchronization requirements. The controller implements speed control and phase control to continuously adapt the resistance level, transforming the brake system from a fixed resistance device to a dynamically adjustable one.
2Measurement precision
If speed control and phase control are implemented, then movement synchronization with music is improved, but control algorithm complexity increases
Solution Approach 1:
The control system is divided into two independent control loops: speed control and phase control. Each control loop handles a specific aspect of synchronization - speed control manages the temporal alignment with music beats, while phase control manages the positional alignment within each movement cycle. This segmentation simplifies the overall control strategy by breaking down the complex synchronization task into manageable components.
Solution Approach 2:
The controller adjusts the resistance force based on changes in speed error and phase error parameters. By monitoring these parameters and applying appropriate control algorithms, the system achieves precise synchronization with the music beat. The resistance force parameter is dynamically modified to correct deviations in speed and phase, enabling accurate movement control.
3Ease of operation
If resistance force is dynamically adjusted, then user engagement is improved, but energy consumption increases
Solution Approach 1:
The resistance force adjustment operates periodically in sync with the music beat rhythm. The controller applies resistance modifications at regular intervals corresponding to the musical tempo, creating a rhythmic control pattern that enhances user engagement while optimizing energy consumption by avoiding continuous unnecessary adjustments.
Data Source
AI summary
An exercise system includes a movable input member and a brake. The system further includes a controller that may be configured to control a resistance force of the brake acting on the movable input member to synchronize movement of the movable input member with a music beat. The controller may utilize a difference between a target speed and a measured speed, and a difference between a target phase and a measured phase to control the resistance force. One or both of the target speed and the target phase may be determined, based at least in part, on a music beat or other repetitive input.