Embedded Force Sensor Mattress for Automatic Sleep State Detection
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Solution Overview
Problem
Existing sleep monitoring systems are limited in functionality and convenience, requiring users to manually place devices on mattresses and relying on mobile device hardware that provides limited information and suffers from accuracy issues.
Innovation Solution
A sleep system with force sensors embedded in the mattress to monitor occupant movement, temperature, and humidity, coupled with processors to determine sleep state, mattress health, and environmental information, and a mobile device or server to generate display screens for user feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mobile device applications are used to monitor sleep state, then sleep monitoring functionality is provided, but the user must manually place the device on the mattress and ensure it is at a particular location, reducing convenience
Solution Approach 1:
The mattress system performs sleep monitoring automatically without requiring user intervention to place or position any device. The force sensors embedded in the mattress autonomously detect occupant presence and movement, eliminating the need for manual device placement and setup.
Solution Approach 2:
The mattress acts as an intermediary between the user and the monitoring system. Instead of requiring the user to place a mobile device on the mattress, the mattress itself becomes the sensing platform with embedded force sensors that directly detect sleep state parameters.
2Measurement precision
If mobile device hardware is used for sleep state detection, then basic monitoring is achieved, but limited information is obtained and accuracy issues occur
Solution Approach 1:
The patent replaces the mechanical accelerometer-based detection system of mobile devices with force sensors embedded in the mattress. These force sensors provide more accurate and comprehensive measurement of occupant weight, pressure distribution, and movement patterns, eliminating the limitations of mobile device hardware.
Solution Approach 2:
The force sensors in the mattress serve multiple functions: detecting occupant presence, measuring weight, tracking movement patterns, and determining sleep position. This multi-functionality provides comprehensive sleep state information that exceeds the capabilities of mobile device accelerometers.
3Reliability
If force sensors are embedded in the mattress, then comprehensive and accurate sleep monitoring is achieved, but the system complexity increases
Solution Approach 1:
The patent combines the force sensors, processors, and communication interfaces directly into the mattress structure, creating an integrated sleep monitoring system. This merging of components eliminates the need for separate external devices and reduces overall system complexity despite the advanced functionality provided.
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
Provides comprehensive and accurate monitoring of sleep state, mattress health, and environmental conditions, eliminating the need for manual device placement and enhancing data accuracy and user feedback.
Implementation Method 1
one or more force sensors embedded within the mattress. The force sensors are positioned within the mattress to sense movement of an occupant
Data Source
AI summary
Sleep systems having embedded sensors are described. In one aspect, a sleep system includes a mattress and one or more force sensors embedded within the mattress. The force sensors are positioned within the mattress to sense movement of an occupant of the mattress. The sleep system also includes one or more processors coupled with the one or more force sensors. At least one of the processors is configured to determine sleep state information for the occupant based on data obtained from one or more of the force sensors.