Wearable Sensor Groove for Sweat Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wearable devices that detect biological information often become sweaty and damp due to prolonged wear, leading to discomfort and potential inaccuracies in data collection.
Innovation Solution
Incorporating a groove on the contact surface of the device that crosses the skin contact area, allowing sweat and moisture to escape, combined with materials like diatomaceous earth and lotus effect processing for enhanced water repellency and rapid drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the contact surface is made smooth and continuous to ensure close contact with skin for accurate data collection, then measurement precision is improved, but the device becomes sweaty and damp leading to discomfort and potential inaccuracies
Solution Approach 1:
The contact surface incorporates a porous layer with micro-pores that allow sweat and moisture to escape while maintaining sufficient contact pressure for accurate sensor measurements. The porous structure creates capillary channels that facilitate moisture transport away from the skin-contact interface.
Solution Approach 2:
The contact surface is segmented into multiple functional layers including a porous layer with varying pore sizes and distribution. This segmentation allows different regions to perform different functions: some areas maintain close contact for sensing while others provide ventilation pathways for moisture escape.
2Object-affected harmful factors
If ventilation holes are added to the contact surface to allow moisture escape, then sweat and moisture are reduced, but the contact surface area is decreased affecting measurement accuracy
Solution Approach 1:
Instead of discrete ventilation holes, the invention uses a continuous porous layer with micro-pores distributed throughout the contact surface. This provides numerous small escape pathways for moisture while maintaining overall surface continuity and contact area for accurate sensing.
Solution Approach 2:
The ventilation function is moved from the surface plane (2D holes) to the depth dimension (3D porous network). The porous layer extends vertically with interconnected pores that provide moisture escape routes without creating surface openings that would compromise contact area.
3Measurement precision
If the contact surface is made highly adhesive to maintain close contact with skin, then measurement precision is improved, but sweat and moisture accumulate more rapidly causing discomfort
Solution Approach 1:
The contact surface uses a composite structure combining adhesive materials with porous hydrophobic materials. The adhesive component ensures initial attachment and close contact for sensing, while the porous hydrophobic component repels and channels away sweat and moisture, preventing accumulation.
Solution Approach 2:
Different regions of the contact surface have different properties: areas requiring high contact pressure use more adhesive material, while areas prone to moisture accumulation use more porous and hydrophobic material. This local differentiation optimizes both adhesion and moisture management.
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
Prevents sweating and dampness, maintaining close contact with the skin for accurate data collection while ensuring user comfort and device functionality.
Implementation Method 1
a groove that crosses the first contact surface... sweat and moisture on and around the contact surface that is to be brought into contact with the skin of a user are caused to run away
Implementation Method 2
sweat and moisture on and around the contact surface that is to be brought into contact with the skin of a user are caused to run away
Implementation Method 3
materials like diatomaceous earth and lotus effect processing for enhanced water repellency
Data Source
AI summary
The present technology relates to an information processing device and a method of ventilating an information processing device, which are able to prevent getting sweaty and damp when the information processing device is worn. The information processing device is to be worn by a user and includes a main body portion having a contact surface that is brought into contact with a skin of the user, and a groove that crosses the contact surface. The present technology is able to be applied to a wearable device of a type such as a wrist-band type, an earphone type, a neckband type, an eyeglasses type, a watch type, a bracelet type, a neckless type, a headset type, or a head-mount type.