Optical Heart Rate Sensor with Wireless Data Sync
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current fitness trackers provide complex and confusing interfaces for users to view activity data, often requiring wired connectors for syncing with client devices, and lack efficient methods to measure heart rate accurately during physical activities.
Innovation Solution
An activity tracking device with a motion sensor, processor, display screen, light source, and light detector that captures reflected light from a user's blood vessel to measure heart rate, providing feedback on pressure and displaying metrics on a user-friendly interface, capable of wireless communication and integration with client devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fitness trackers use wired connectors and complex syncing schemes to transfer data, then data transfer reliability is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent replaces mechanical wired connectors with wireless communication technology (Bluetooth, Wi-Fi) to transfer data between the fitness tracker and client devices. This eliminates the need for physical connection while maintaining reliable data transfer, thereby reducing device complexity and improving ease of operation without sacrificing data transfer reliability.
2Measurement precision
If fitness trackers provide comprehensive activity data, then measurement precision is improved, but ease of operation deteriorates due to complicated interfaces
Solution Approach 1:
The patent segments the comprehensive activity data into distinct categories (heart rate, steps, calories, sleep patterns) and presents them through simplified visual interfaces with icons, graphs, and color-coded indicators. This allows users to access specific data points of interest without being overwhelmed by the full dataset, maintaining measurement precision while improving ease of operation.
Solution Approach 2:
The patent introduces a mobile application as an intermediary between the fitness tracker hardware and the user. The application processes raw sensor data, transforms it into meaningful insights, and presents it through user-friendly interfaces with customizable dashboards, notifications, and analysis tools, thereby bridging the gap between comprehensive data collection and easy user comprehension.
3Adaptability or versatility
If fitness trackers measure multiple physiological parameters, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent employs a multi-functional sensor platform where a single integrated system performs multiple physiological measurements (optical sensors for heart rate, accelerometers for motion, gyroscopes for orientation, barometers for altitude). This universal platform approach allows the device to measure various parameters simultaneously without proportionally increasing complexity, as shared processing and power management resources handle multiple sensing functions.
Solution Approach 2:
The patent combines multiple sensing technologies (optical, inertial, barometric) into a unified measurement system with centralized processing. By merging sensor data acquisition, processing, and transmission into a single integrated architecture, the device achieves high adaptability for measuring diverse physiological parameters while minimizing the increase in overall system complexity through resource sharing and coordinated operation.
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 users to accurately monitor both activity and heart rate in real-time, with a user-friendly interface and wireless syncing, improving data accessibility and reducing the complexity of data transfer and analysis.
Implementation Method 1
A light detector is integrated within the housing. The light detector is configured to capture an amount of the light that is reflected back to the light detector, at least a first portion of the light reflected back to the light detector is reflected from a blood vessel under a skin of a user
Data Source
AI summary
A system and method of tracking activity includes a motion sensor, a light source and a light detector. The light detector is configured to capture an amount of the light that is reflected back to the light detector, at least a first portion of the light reflected back to the light detector is reflected from a blood vessel disposed under a skin adjacent to the housing. A processor is in communication with the motion sensor and the light detector and can process the reflected light to identify heart beats and produce an indication of a heart rate. The indication of the heart rate can be displayed on the display screen as an option, in addition to the metrics that quantify the motion data.