Earlobe Bio-signal Sensor for Continuous Exercise Feedback
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Solution Overview
Problem
Conventional biofeedback systems for exercise and rest training restrict user movement and make it difficult for users to recognize changes in bio-information during exercise, interrupting continuous exercise and failing to provide effective motivation through biofeedback.
Innovation Solution
A method and apparatus that collect and analyze bio-signals in real-time, providing feedback to users through a bio-signal measuring module and bio-information feedback module, allowing users to adjust exercise or rest intensity based on target zones set using Karvonen formula calculations, with music files used for positive and negative biofeedback to maintain or adjust heart rate within target zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sensor is attached to the user's chest with a tightened band to collect reliable signals, then measurement reliability is improved, but user freedom of movement is restricted
Solution Approach 1:
The patent extracts the sensor from the traditional chest-mounted position and relocates it to the earlobe, eliminating the need for a restrictive band while maintaining signal collection reliability through a different anatomical location that does not constrain movement
Solution Approach 2:
The patent introduces a wireless communication module as an intermediary between the sensor and the feedback system, allowing the sensor to be positioned at the earlobe without direct connection to the processing unit, thereby enabling movement freedom while maintaining reliable data transmission
2Loss of information
If conventional display devices or alarm functions are used to show current exercise level, then users can recognize exercise intensity, but continuous exercise is interrupted due to difficulty in recognizing changes
Solution Approach 1:
The patent implements real-time audio feedback that continuously monitors and communicates the user's exercise level through music playback, allowing users to recognize their exercise intensity without visual displays or alarms that would interrupt their workout
Solution Approach 2:
The patent replaces traditional mechanical display devices and alarm functions with an audio-based feedback system using music playback, which provides continuous information without requiring the user to look at displays or respond to interrupting alarms
3Adaptability or versatility
If conventional biofeedback signals are provided to motivate users, then users receive stimulation to continue exercising, but the signals are not effectively presented to motivate continuous exercise
Solution Approach 1:
The patent changes the parameter of biofeedback from traditional visual or audible signals to music playback with varying tempo and intensity, creating a more engaging and effective motivational system that adapts to the user's exercise level and maintains exercise continuity
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 system enhances user convenience and movement freedom by providing effective biofeedback, allowing users to maintain or adjust their heart rate within target exercise or rest zones, promoting continuous and effective training while minimizing interruptions.
Implementation Method 1
The HR can be collected using various methods. Usually, the HR is measured by counting the number of pulses per unit time using an electrocardiogram signal or a photo plethysmography (PPG) signal.
Data Source
AI summary
In a training control method using biofeedback, and an apparatus using the method, the method includes setting a target exercise zone for a user based on a bio-signal from the user, the target exercise zone including a range of indices and comparing a current index obtained from the bio-signal with the target exercise zone in time units in an exercise training mode and providing at least one of positive biofeedback information, negative biofeedback information, and a warning message to the user according to a result of the comparison.