Wearable Biometric Sensor Elastic Step Difference
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Solution Overview
Problem
Existing wearable measurement devices face challenges in providing accurate and comfortable biometric signal measurement due to inadequate contact and pressure distribution, leading to suboptimal sensor performance and user experience.
Innovation Solution
A wearable measurement apparatus featuring a main-body elastic part and a biometric signal sensor with a sensor elastic part forming a step difference, supported by a strap, which allows for elastic support and adjustable contact pressure, utilizing a controller to determine and display pressing force and biometric signal normalcy, and optionally including an adsorption sensor for adsorption force measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the biometric signal sensor is placed in direct contact with the body part, then the measurement accuracy is improved, but the comfort and pressure distribution deteriorate
Solution Approach 1:
The patent introduces an elastic part as an intermediary component between the biometric signal sensor and the body part. This elastic part deforms under compression to transmit force to the sensor while maintaining comfortable contact pressure on the skin, thereby resolving the contradiction between measurement accuracy and user comfort.
Solution Approach 2:
The patent utilizes the elastic properties of the elastic part, which changes its deformation parameter based on the applied force. This allows the system to maintain optimal contact pressure for sensor activation while preventing excessive pressure on the body part, effectively managing the trade-off between measurement quality and comfort.
2Reliability
If the contact pressure between sensor and body part is increased, then the biometric signal detection is improved, but the user comfort deteriorates
Solution Approach 1:
The elastic part's deformation parameter dynamically adjusts based on applied force, enabling the system to achieve sufficient contact pressure for reliable sensor operation while maintaining comfortable pressure levels for the user. The elastic properties allow force transmission without rigid pressure application.
3Ease of operation
If the elastic part is made softer to improve comfort, then the pressure distribution improves, but the force transmission to sensor deteriorates
Solution Approach 1:
The elastic part is designed with specific elastic properties that allow it to deform comfortably under light pressure while still transmitting sufficient force to activate the sensor. The material and structural design of the elastic part optimize both comfort and force transmission capabilities simultaneously.
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
This configuration ensures accurate and comfortable biometric signal measurement by maintaining adequate contact while minimizing pressure on other body parts, improving sensor performance and user experience through adjustable contact forces and elastic support mechanisms.
Implementation Method 1
a sensor elastic part interposed between the main body and the biometric signal sensor, and configured to form a step difference between a bottom surface of the biometric signal sensor and a bottom surface of the main-body elastic part, and elastically support the biometric signal sensor against the main body
Data Source
AI summary
A wearable measurement apparatus capable of measuring a biometric signal is provided. The wearable measurement apparatus includes a main body, and a main-body elastic part disposed on a bottom surface of the main body, and configured to elastically support the main body against a body part of a user. The wearable measurement apparatus further includes a biometric signal sensor disposed apart from the main-body elastic part, and configured to detect a biometric signal from the body part, and a sensor elastic part interposed between the main body and the biometric signal sensor, and configured to form a step difference between a bottom surface of the biometric signal sensor and a bottom surface of the main-body elastic part, and elastically support the biometric signal sensor against the main body.