Wearable Ring Sensor Layout for Comfort and Reliable Monitoring
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Solution Overview
Problem
Conventional wearable electronics are bulky and intrusive, making them uncomfortable for extended wear and often inaccurate in monitoring due to inconsistent contact with the body.
Innovation Solution
A wearable computing device in the form of a ring with flexible printed circuit boards and transparent windows for data transmission, battery recharge, and status indication, incorporating components like LEDs and photovoltaic cells for prolonged wear and accurate monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wearable electronics are made bulky to include necessary components, then functionality is improved, but comfort and ease of wear deteriorate
Solution Approach 1:
The wearable device is divided into multiple functional modules (sensing module, processing module, communication module, power module) that can be independently designed and optimized. This segmentation allows each module to be miniaturized while maintaining overall functionality, resolving the contradiction between comprehensive functionality and compact size for comfort.
Solution Approach 2:
Components are nested within each other to maximize space utilization. For example, the flexible printed circuit board is folded and nested within the housing, batteries are positioned to accommodate other components, and the overall structure is designed with nested layers that reduce the device envelope while maintaining all necessary functions.
2Ease of operation
If wearable electronics are made compact for comfort, then ease of wear is improved, but measurement precision and reliability deteriorate
Solution Approach 1:
The device employs different material properties and component qualities in different locations. For example, the interior surface has specific friction and compliance properties optimized for skin contact, while the exterior housing provides structural integrity and protection. This local optimization allows compact dimensions while maintaining measurement precision through proper material selection and component placement.
Solution Approach 2:
The device utilizes parameters such as temperature, light absorption, and electrical conductivity that can be precisely measured even in compact form factors. By focusing on parameters that can be accurately detected with miniaturized sensors and by optimizing the sensitivity of measurement systems, the device maintains high measurement precision despite its compact size.
3Adaptability or versatility
If transparent windows are added for data transmission and charging, then functionality is improved, but device complexity increases
Solution Approach 1:
The transparent window structure serves multiple functions simultaneously: it allows optical data transmission, enables wireless charging through the housing, provides status indication visibility, and maintains structural integrity. By designing a single multi-functional element rather than separate components for each function, the device achieves enhanced versatility without proportionally increasing complexity.
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 prolonged, comfortable wear and accurate fitness and health monitoring with consistent skin contact, improving data reliability and functionality through gesture recognition and biometric sensing.
Implementation Method 1
at least one concentrated photovoltaic cell configured to convert concentrated light into an electrical current
Implementation Method 2
at least one LED configured to emit at least one of visible light, infrared radiation, and ultraviolet radiation through the external potting
Data Source
AI summary
A finger-worn wearable ring device may include a ring-shaped housing, a printed circuit board, and a sensor module that includes one or more light-emitting components and one or more light-receiving components. The wearable ring device may further include a communication module configured to wirelessly communicate with an application executable on a user device.