Wearable Biosensor Adherency Control for Comfort and Accuracy
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Solution Overview
Problem
Wearable devices face challenges in achieving accurate biosignal measurements due to varying adherency with the user's body, which can lead to discomfort and reduced accuracy.
Innovation Solution
A method and apparatus for controlling adherency between a sensor in a wearable device and the user's body by determining the sensor's activated state and adjusting the adherency using a controller, such as lengthening or shortening a band or adjusting the angle of glasses frames, to ensure optimal contact for comfortable wear and accurate biosignal detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor is positioned too close to the user's body to improve measurement accuracy, then the measurement precision is improved, but the user experiences pressure and discomfort
Solution Approach 1:
The wearable device dynamically adjusts the distance between the sensor and the user's body based on the activation state of the sensor. When the sensor is activated for biosignal measurement, the device moves closer to ensure accurate contact. When not in use, the device moves away to eliminate pressure and discomfort. This dynamic adjustment resolves the contradiction by making the proximity adaptive rather than fixed.
2Measurement precision
If the sensor maintains constant close contact with the body to ensure accurate biosignal detection, then the measurement precision is improved, but the user comfort deteriorates during non-measurement periods
Solution Approach 1:
The system transitions from static constant contact to dynamic adjustable contact. The wearable device changes its distance from the body based on operational needs, providing close contact only when the sensor is activated for measurement, and maintaining a comfortable distance during non-measurement periods.
Solution Approach 2:
The wearable device automatically adjusts its own position relative to the user's body based on the sensor's activation state without requiring manual intervention. The system self-regulates the adherency to optimize both measurement accuracy and user comfort based on real-time operational conditions.
Data Source
AI summary
Provided are a method of controlling a wearable device and a wearable device. The method of controlling the wearable device includes: determining whether a sensor provided in the wearable device is in an activated state; controlling an adherency controller for adjusting adherency between the sensor and a body of a user wearing the wearable device based on whether the sensor is in the activated state; and detecting a biosignal via the sensor.