Backstroke Goggle Window and Motion Sensor Feedback
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Solution Overview
Problem
Existing wearable devices for measuring hang time and vertical jump height are either non-portable, impractical for detecting jumps in dynamic conditions, or lack real-time feedback, and existing swimming goggles do not provide adequate vision for backstroke swimmers to avoid injuries and maintain a straight path.
Innovation Solution
The development of swimming goggles with a backstroke viewing window and an electronic controller that uses a motion sensor to provide real-time feedback and statistics on hang time, allowing swimmers to see behind them without changing their head position, and compare their performance to standards or other swimmers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a backstroke viewing window is added to swimming goggles, then swimmers can see behind them without moving their head, but the device complexity increases
Solution Approach 1:
The goggle lens is divided into multiple viewing windows: a front viewing window for forward vision and a backstroke viewing window positioned at the top for backward vision. This segmentation allows swimmers to see in different directions without moving their heads, resolving the contradiction between ease of operation and device complexity by integrating multiple functions into a single wearable device.
2Measurement precision
If a motion sensor is integrated into the goggle, then real-time hang time measurement is achieved, but the device complexity and weight increase
Solution Approach 1:
The motion sensor automatically detects jump events and calculates hang time without requiring manual input or complex external equipment. The processor analyzes motion data from the accelerometer and provides real-time feedback, making the system self-sufficient and minimizing additional complexity while achieving precise measurement.
Solution Approach 2:
Traditional mechanical jump measurement devices (such as force plates or optical systems) are replaced with a compact electronic motion sensor that can be integrated into the goggle. This substitution reduces mechanical complexity while maintaining measurement precision through electronic sensing and digital processing.
3Productivity
If real-time feedback is provided during swimming, then performance improvement is enhanced, but energy consumption increases
Solution Approach 1:
The feedback system operates periodically rather than continuously, providing hang time measurements and performance feedback at key moments (e.g., after jumps or at interval points). This periodic operation reduces energy consumption while still delivering timely performance improvement benefits, resolving the contradiction between productivity enhancement and energy usage.
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
The solution enables swimmers to reduce injury risk, maintain a straight swimming path, and receive practical motion-related information and feedback on their performance, enhancing their swimming efficiency and accuracy.
Implementation Method 1
a motion sensor to provide real-time feedback and statistics on hang time
Data Source
AI summary
Wearable electronic devices that are designed to be worn on the head of a user while the user is swimming can determine swimming strokes and swimming performances of the user using motion sensors. Using a sound speaker, the wearable electronic device can play music and provide audio feedback to the swimmer. By comparing the swimming performance of the swimmer wearing the device with previously recorded swimming data, the wearable electronic device can provide audio comparison results to the swimmer while the swimmer is swimming in water. The wearable electronic device can also support similar functions for jumping actions.