Contactless HRV Monitoring via Under-Mattress Vibration Sensing
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Solution Overview
Problem
Current heart rate variability (HRV) monitoring methods require physical contact, such as electrodes or chest straps, which can be irritating and cumbersome, and lack easy, automated data interpretation for improving performance efficiency.
Innovation Solution
A contactless heart-rate monitoring system using a sensor under the mattress to detect heart rate variability, processing data automatically and providing user-friendly insights through a networked device without physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contactless monitoring is used, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The patent introduces an intermediary sensor system (accelerometer, gyroscope, barometer) that indirectly measures heart rate variability through motion and pressure changes rather than direct physiological contact. This mediator approach enables contactless monitoring while maintaining acceptable measurement precision for HRV analysis.
Solution Approach 2:
The patent replaces direct mechanical/electrical contact sensors (electrodes, chest straps) with inertial sensors (accelerometers, gyroscopes) and pressure sensors that detect motion and position changes. This substitution eliminates skin contact while capturing physiological signals through mechanical motion analysis.
2Productivity
If automated data processing is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent performs preliminary data processing and filtering within the mobile device or server before presenting results to the user. HRV metrics are calculated automatically from raw sensor data, and actionable insights are prepared in advance, reducing the need for complex real-time processing during monitoring.
Solution Approach 2:
The system automatically processes and interprets HRV data without requiring user intervention or manual analysis. The device self-manages data collection, processing, and presentation of results, enabling high productivity while keeping the user interface simple despite complex backend operations.
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 continuous, non-invasive HRV monitoring, providing intuitive data for performance improvement by eliminating skin irritation and cumbersome data analysis, suitable for various populations including vulnerable individuals.
Implementation Method 1
Peaks in ballistocardiogram or electrocardiogram may occur, for example, at beat-to-beat intervals
Implementation Method 2
A contactless heart-rate monitoring system using a sensor under the mattress to detect heart rate variability
Data Source
AI summary
A heart-rate monitoring system for a monitoring subject for increasing a performance improvement efficiency by the monitoring subject includes a heart-rate monitoring device having a sensor. The sensor is not in direct physical contact with the monitoring subject. The sensor provides sensing data; the heart-rate monitoring device calculates, from the sensing data, monitoring data relative to heart rate variability of the monitoring subject. The system includes an application server processing the monitoring data to calculate processed data and a user device for displaying the processed data in a format that increases the performance improvement efficiency by the monitoring subject.