Wearable Device Wearing Status Detection via Sensor Feedback
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Solution Overview
Problem
Wearable devices used for detecting biological information require accurate attachment to the user to ensure correct data detection, but during exercise, users may not be able to verify if the device is properly attached, leading to potential incorrect bio data detection.
Innovation Solution
A method for a wearable device that uses sensors to detect variations in exposure time, auxiliary light intensity, or pressure/temperature to determine if the device is correctly worn by calculating the difference between consecutive data points and alerting the user if the variation exceeds a predetermined threshold, thereby preventing incorrect bio data detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the wearable device is tightly attached to the user to ensure correct bio data detection, then the measurement precision is improved, but the user cannot verify during exercise whether the device is properly attached
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors wearing status through sensors (detecting changes in contact pressure, position, or environmental light reflections) and provides real-time feedback to the user via visual indicators (LEDs), haptic vibrations, or audio signals. This allows users to verify attachment status during exercise without compromising measurement precision.
2Reliability
If the device monitors wearing status continuously to provide real-time feedback, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The patent applies multi-functionality by utilizing existing sensors in the wearable device for dual purposes: primary sensors (accelerometers, gyroscopes, or optical sensors) are employed both for their original bio data collection functions and for wearing status monitoring. This approach enhances reliability without proportionally increasing device complexity, as the same hardware components serve multiple functions.
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 method effectively informs users when the wearable device is not correctly attached, ensuring accurate bio data detection by providing real-time feedback through display, LEDs, or audio alerts, thus preventing incorrect data capture.
Implementation Method 1
providing a current to drive a light source to emit auxiliary light
Data Source
AI summary
Disclosed is a detecting method of a wearable device, which comprises: providing a current to drive a light source to emit auxiliary light corresponding to ambient light received by the wearable device; and informing a wearing status indicative whether the wearable device is correctly worn by a user or not according to the current. By this way, the wearing status of the user can be easily detected.