Forearm Biometric Monitor with Immersion and Gyro Sensors
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Solution Overview
Problem
Existing personal health monitoring devices are often complex and designed for single activities, and recent advancements in sensor and power source miniaturization have not been effectively utilized to create versatile, user-friendly devices that can track various biometric data during different activities, such as swimming and cycling, with integrated notification systems for performance metrics.
Innovation Solution
A biometric monitoring system with a housing for the forearm, incorporating a gyroscopic motion sensor, immersion sensor, and control logic that detects swim strokes, determines stroke types, and provides notifications based on performance goals, while also tracking cycling cadence and form, using a combination of sensors and notification systems for audio and haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If personal health monitoring devices are designed for single activities with specialized sensors, then measurement precision for specific activities is improved, but device complexity and lack of versatility worsen
Solution Approach 1:
The biometric monitoring device is designed to perform multiple functions across different activities (swimming, cycling, running) using a unified sensor suite. The immersion sensor detects water contact for swimming activities, while the gyroscopic motion sensor tracks angular motion for stroke detection and cycling cadence monitoring, making the device universally applicable without requiring activity-specific hardware variants
Solution Approach 2:
The patent combines multiple sensor types (immersion sensor, gyroscopic motion sensor, barometric altimeter sensor, galvanic skin response sensor, temperature sensor) into a single integrated device that can handle various activities. This merging approach consolidates what would traditionally require separate specialized devices into one unified system
2Adaptability or versatility
If multiple sensors are integrated into a single device for versatile activity tracking, then adaptability and versatility are improved, but device size and manufacturing complexity worsen
Solution Approach 1:
The device housing is designed with distinct sensor compartments and mounting areas that allow individual sensors to be manufactured and tested separately before integration. The immersion sensor, gyroscopic motion sensor, and other sensors can be sourced from different suppliers and assembled into the final device, simplifying the manufacturing process while maintaining versatility
3Ease of operation
If notification intensity is increased for swimming activities based on immersion detection, then user engagement and performance monitoring are improved, but energy consumption worsens
Solution Approach 1:
The notification system operates periodically based on immersion detection events rather than continuously. The immersion sensor triggers notifications at specific intervals during swimming activities (e.g., after completing a lap or reaching performance milestones), reducing overall energy consumption compared to continuous high-intensity notifications while maintaining user engagement
Solution Approach 2:
The notification intensity parameter is dynamically changed based on the detected activity type and immersion status. During swimming activities detected by the immersion sensor, notification intensity is increased to provide enhanced feedback. During non-swimming activities or when the device is dry, notification intensity is reduced to conserve battery power
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
The system provides comprehensive and user-friendly tracking of biometric data during various activities, enhancing user engagement and performance monitoring through accurate detection of swim strokes and cycling metrics, with intensified notifications for swimming and cycling performance.
Implementation Method 1
the immersion sensor may be a barometric altimeter sensor
Implementation Method 2
the immersion sensor may be a barometric altimeter sensor, a galvanic skin response sensor, a conductance sensor, or a temperature sensor
Implementation Method 3
the immersion sensor may be a barometric altimeter sensor, a galvanic skin response sensor, a conductance sensor, or a temperature sensor
Implementation Method 4
a gyroscopic motion sensor located in the housing
Data Source
AI summary
Biometric monitoring devices, including various technologies that may be implemented in such devices, are discussed herein. Additionally, techniques for utilizing gyroscopes in biometric monitoring devices are provided. Such techniques may, in some implementations, involve obtaining swimming metrics regarding stroke cycle count, lap count, and stroke type. Such techniques may also, in some implementations, involve obtaining performance metrics for bicycling activities.