Wearable Biometric Sensor Layout for Accurate AGE Measurement
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Solution Overview
Problem
Existing wearable electronic devices lack accurate methods for measuring advanced glycation end-products (AGEs) using optical sensors.
Innovation Solution
A wearable device with a housing containing a display, printed circuit board, and biometric sensors that include multiple light-emitting and light-receiving elements, emitting and receiving light in different bands to measure AGEs, and a transparent cover for UV and visible/IR light interaction with the user's body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple light-emitting elements and light-receiving elements are added to measure AGEs, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor is divided into multiple functional units with dedicated light-emitting elements and light-receiving elements for different wavelength ranges (UV, visible, IR). Each segment measures specific biometric parameters, and the results are integrated to calculate AGEs, improving measurement precision while maintaining manageable complexity through modular design
Solution Approach 2:
The sensor system is designed to measure multiple biometric parameters simultaneously (heart rate, blood oxygen saturation, AGEs) using a unified multi-wavelength optical structure. The same sensor array serves multiple functions, reducing overall device complexity while enhancing measurement capabilities
2Measurement precision
If multiple wavelength bands (UV, visible, IR) are used for biometric measurement, then measurement precision is improved, but use of energy increases
Solution Approach 1:
The light-emitting elements operate in periodic cycles, alternating between different wavelength bands (UV, visible, IR) rather than continuous operation. This allows the sensor to measure multiple biometric parameters sequentially, reducing total energy consumption while maintaining comprehensive measurement capability
Solution Approach 2:
The system dynamically adjusts the wavelength parameters of light emission based on measurement requirements and ambient conditions. By optimizing which wavelength bands to activate for each measurement cycle, the system achieves high precision biometric measurement while minimizing energy consumption through adaptive parameter selection
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
Enhances the accuracy of AGE measurement by utilizing UV and filtered UV/visible/IR light to acquire precise biometric information, enabling continuous monitoring and health assessment.
Implementation Method 1
a first light-emitting element configured to emit ultraviolet (UV) light through the transparent cover
Implementation Method 2
a second light-emitting element separated from the first light-emitting element by means of a partition wall and configured to emit at least one of visible light or infra-red (IR) light through the transparent cover
Implementation Method 3
multiple light-receiving elements including a first light-receiving element and a second light-receiving element configured to detect unfiltered UV light and filtered UV light, emitted from the multiple light-emitting elements and reflected by a portion of the user's body
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing including a first surface and a second surface opposite the first surface, a third surface substantially surrounding a space between the first surface and the second surface and forming a lateral surface of the wearable device, a display received in the housing to be seen through the first surface, a printed circuit board disposed between the display and the second surface, and at least one biometric sensor disposed on the printed circuit board to face the second surface and including multiple light-emitting elements and multiple light-receiving elements, wherein the multiple light-emitting element include a first light-emitting element disposed in a peripheral area of the printed circuit board and configured to emit first light in a first specified band, and a second light-emitting element disposed in a center area of the printed circuit board and configured to emit second light in a second specified band at least partially different from the first specified band, and a wherein the multiple light-receiving elements include a first light-receiving element, and a second light-receiving element configured to receive light emitted from the first light-emitting element and the second light-emitting element and reflected from a portion of a user's body, the first light-emitting element being disposed in the peripheral area to be adjacent to each of the first light-receiving element and the second light-receiving element.