Charging-Time Optical Calibration for Guided Bio-Information Estimation
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Solution Overview
Problem
There is a need for an apparatus to easily identify antioxidant levels in the body, as excessive reactive oxygen species can lead to various diseases, and maintaining sufficient antioxidant levels is crucial for health.
Innovation Solution
An electronic device with an optical sensor and processor that performs calibration using a reference object during charging, guides the user through stages of bio-information estimation, and estimates antioxidant levels based on light reflection measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the electronic device performs calibration and measurement operations, then the bio-information estimation accuracy is improved, but the operation complexity increases
Solution Approach 1:
The system performs calibration operations automatically during charging time, before the actual measurement is needed. This preliminary calibration stores reference light quantity data that will be used for subsequent measurements, eliminating the need for users to perform complex calibration procedures manually at measurement time.
Solution Approach 2:
The electronic device automatically guides users through measurement stages, determines contact positions, and manages the measurement process without requiring user expertise. The system self-manages the complex operations of calibration, measurement guidance, and data processing, making the process simple for users while maintaining high accuracy.
2Ease of operation
If the electronic device provides detailed guidance information for measurement stages, then the ease of operation is improved, but the information processing complexity increases
Solution Approach 1:
The measurement process is divided into distinct stages (calibration stage, measurement stage, result output stage), with specific guidance information provided for each stage. This segmentation allows the system to manage complex information processing by breaking it down into manageable, stage-specific tasks rather than handling all information simultaneously.
3Measurement precision
If the optical sensor performs calibration using reference light, then the measurement precision is improved, but the calibration time increases
Solution Approach 1:
The calibration operation is performed in advance during the charging period, utilizing otherwise idle time. By completing the calibration process before the user needs to perform measurements, the system eliminates dedicated calibration time from the user's active usage period while ensuring accurate calibration data is available when needed.
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 non-invasive estimation of antioxidant levels by guiding users through accurate positioning and pressure application, providing real-time bio-information estimation results.
Implementation Method 1
An electronic device with an optical sensor and processor that performs calibration using a reference object during charging, guides the user through stages of bio-information estimation, and estimates antioxidant levels based on light reflection measurements
Data Source
AI summary
An electronic device may include: an optical sensor configured to emit a reference light to a reference object and detect the reference light reflected from the reference object during calibration, and emit a measurement light to a target object and detect the measurement light reflected from the target object during a measurement; a display; and a processor configured to: when the electronic device is placed on a charger and is in a charging state, perform the calibration of the optical sensor based on the reference light reflected from the reference object; control the display to output guide information for estimating bio-information according to progress stages of the measurement after charging of the electronic device; and estimate the bio-information based on a light quantity of the measurement light that is reflected from the target object, and a light quantity of the reference light reflected from the reference object.