Bed-Integrated Pressure Sensor for Adaptive Lighting and Fall Detection
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Solution Overview
Problem
Current safety systems for elderly and disabled individuals lack effective monitoring and illumination solutions that adapt to their movements, particularly in bed, which can indicate falls or health issues, and do not provide real-time alerts for caregivers.
Innovation Solution
A presence-based illumination and analytics system that uses sensors to detect movements on a bed, sending signals to turn lights on and off and track duration, frequency, and type of movement, with alerts sent if abnormal patterns indicate potential falls or health issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motion sensors and wearable devices are used to detect presence and movement, then safety monitoring capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the monitoring function from complex wearable devices and motion sensors, placing simple pressure sensors directly in the bed. This removes the need for users to wear or carry complex devices, while maintaining monitoring capability through the bed-integrated sensor system.
Solution Approach 2:
The bed acts as an intermediary medium between the user and the monitoring system. Pressure sensors embedded in the bed mattress detect user presence and movement indirectly through pressure changes, eliminating the need for direct contact sensors on the user's body.
2Illumination intensity
If standard night lights are kept switched on throughout the night, then illumination availability is improved, but energy consumption increases
Solution Approach 1:
The lighting system operates periodically based on detected movement rather than continuously. Lights are activated only during periods when movement is detected and deactivated when no movement occurs, creating an on-demand illumination pattern that reduces energy consumption while maintaining availability when needed.
Solution Approach 2:
The system automatically detects user presence and activates lighting without requiring manual intervention. The pressure sensors and controller work autonomously to determine when illumination is needed, eliminating the need for users to manually switch lights on and off.
3Difficulty of detecting and measuring
If motion sensors are placed in certain locations to detect presence, then detection capability is improved, but device complexity and installation complexity increase
Solution Approach 1:
The patent combines the sensing function with the existing bed structure by integrating pressure sensors into the mattress. This merges the monitoring capability with a piece of furniture that is already present in the environment, eliminating the need for separate sensor placements throughout the room.
Solution Approach 2:
The bed serves multiple functions: it provides sleeping support and simultaneously acts as a monitoring platform. The pressure sensors in the bed detect not only presence but also movement patterns, duration of absence, and potential falls, making the system multi-functional without requiring additional dedicated devices.
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 adaptive lighting and real-time monitoring of bed activity, enabling timely alerts to caregivers about potential falls or health issues, promoting safety and independent living for elderly and disabled individuals.
Implementation Method 1
receiving signals from a sensor placed in the bed
Data Source
AI summary
Disclosed herein are systems, devices, and methods relating to presence based detection and analytics including detecting a first movement associated with a bed; based on the first movement, sending a first signal to turn on at least one light and sending a second signal indicative of the first movement; detecting a second movement associated with the bed; and based on the second movement, sending a third signal to turn off at least one light and sending a fourth signal indicative of the second movement.