Golf Swing Energy Transfer Analysis Using Dual Inertial Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing golf swing analysis methods, such as those using optical motion capture systems and acceleration sensors, fail to accurately measure the energy generated in the upper body of a golfer and transferred to the golf club, limiting the precision of swing analysis and energy transfer optimization.
Innovation Solution
A golf swing analyzing apparatus utilizing two inertial sensors, one attached to the upper body and the other to the golf club, calculates the energy amounts generated and transferred, along with an energy transferring ratio, employing a three-dimensional double pendulum model to enhance analysis accuracy and provide timing indices for efficient energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an optical motion capture system is used to capture the image of a swing, then the measurement precision is improved, but the device complexity and equipment size increase tremendously making field realization difficult
Solution Approach 1:
The patent replaces the optical motion capture system with an inertial sensor-based measurement system. Instead of using optical cameras and markers to capture swing motion, the invention attaches inertial sensors directly to the golfer's body and golf club to measure acceleration and calculate energy parameters, thereby eliminating the need for complex optical equipment while maintaining measurement capability
Solution Approach 2:
The patent creates a simplified computational model that copies the essential dynamics of the golf swing. By attaching sensors to key points (golfer's body and club) and calculating energy parameters through mathematical models, the system replicates the measurement function of optical systems using a much simpler approach
2Device complexity
If an acceleration sensor is attached to the golf club to analyze the form of the golf swing, then the device complexity is reduced, but the ability to measure energy generated and transferred in the upper body is lost
Solution Approach 1:
The patent segments the measurement system into multiple inertial sensors placed at different locations: one on the golfer's upper body to measure generated energy and another on the golf club to measure transferred energy. This segmentation allows the system to capture both the source and destination of energy transfer, providing comprehensive measurement capability that a single sensor cannot achieve
Solution Approach 2:
The patent introduces computational models and energy calculation algorithms as intermediaries between the raw sensor data and the final analysis. These intermediaries process acceleration data from multiple sensors to calculate energy parameters, bridging the gap between simple sensor measurements and comprehensive energy transfer analysis
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise analysis of energy transfer during a golf swing, allowing for improved timing and form adjustments through the visualization of energy change rates and transferring ratios, leading to more effective energy transfer and swing optimization.
Implementation Method 1
a first arithmetic section operating to use the output from a first inertial sensor and the output from a second inertial sensor to calculate a first energy amount, the first inertial sensor being attached to a portion of the upper body of a golfer, the second inertial sensor being attached to the golf club
Data Source
AI summary
An aspect of the invention relates to a golf swing analyzing apparatus, comprising: a first arithmetic section operating to use an output from a first inertial sensor and an output from a second inertial sensor to calculate a first energy amount, the first inertial sensor being attached to a portion of an upper body of a golfer, the second inertial sensor being attached to a golf club, the first energy amount being generated in the upper body of the golfer; a second arithmetic section operating to use the output from the first inertial sensor and the output from the second inertial sensor to calculate a second energy amount transferred to the golf club from the upper body of the golfer; and a processing section calculating an energy transferring ratio of an energy transferred from the upper body of the golfer to the golf club based on a ratio of the second energy amount to the first energy amount.