Capacitive Bed Occupancy Detection for Automated Feature Control
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Solution Overview
Problem
Traditional occupancy-detection technologies do not seamlessly integrate with automated bedding systems, limiting access to controlled features and accessories, particularly those requiring manual manipulation or programming.
Innovation Solution
Incorporating capacitive components such as detection pads, wire grids, and processors into furniture items like adjustable beds to detect occupancy through changes in capacitance, allowing for automatic activation of related features and accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional occupancy-detection technology is used, then occupancy detection capability is provided, but integration with automated bedding systems is poor and access to controlled features is limited
Solution Approach 1:
The patent combines the occupancy detection system with the automated bedding system controller into an integrated unit. The capacitive sensor, controller, and bedding system components are merged into a single coordinated system, allowing seamless communication and control between occupancy detection and bedding features, thereby improving both integration capability and operational reliability
Solution Approach 2:
The controller is designed to perform multiple functions: it manages the capacitive occupancy sensor, controls bedding features (mattress positioning, lighting, media), and coordinates accessories. This multi-functional controller serves as a universal interface that bridges occupancy detection with various bedding system capabilities, enhancing adaptability while maintaining reliable operation
2Reliability
If capacitive components are integrated into furniture, then occupancy detection reliability is improved, but device complexity increases
Solution Approach 1:
The controller integrates multiple functions including capacitive sensor management, bedding feature control, and accessory coordination into a single unit. This consolidation reduces the number of separate components and interfaces, thereby managing system complexity while maintaining reliable occupancy detection and control capabilities
Solution Approach 2:
The controller serves as an intermediary device that manages the capacitive sensor and translates occupancy signals into coordinated responses from various bedding features. This intermediary role simplifies the interaction between the sensor and the complex bedding system, making integration more manageable while ensuring reliable operation
3Ease of operation
If automated control features are added, then user experience is enhanced, but ease of operation decreases due to manual programming requirements
Solution Approach 1:
The system automatically detects occupancy and autonomously controls bedding features based on detected presence. The controller monitors capacitive sensor signals and automatically adjusts mattress positioning, lighting, and media playback without requiring manual programming or user intervention, thereby improving ease of operation while managing complexity through automation
4Measurement precision
If multiple detection pads are used to detect single occupant position, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The detection system is divided into multiple discrete capacitive pads arranged across the bedding surface. Each pad independently detects occupancy signals, and the controller processes signals from individual pads to determine precise occupant position. This segmentation enables high measurement precision while managing complexity through modular sensor design and systematic signal processing
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 reliable occupancy detection, enabling automated control of bedding system features and accessories based on presence or absence, enhancing user experience and system functionality.
Implementation Method 1
a capacitive component coupled to the bed, wherein the capacitive component is adapted to have a voltage based on proximity of an object to the capacitive component
Data Source
AI summary
A system and method for incorporating occupancy-detecting technology into furniture is provided. More particularly, the invention relates to detecting occupancy using a detection pad coupled a portion of a bed. The detection pad may include an aluminized polymer material, a metalized and/or conductive fabric, an aluminum sheet, a metal screen, an aluminum tape, a wire grid, or other metalized material or fabric. A controller determines the corresponding response based on single-occupancy or dual-occupancy detection by one or more detection pads. A processor receives information regarding changes in capacitance and determines when a change in voltage satisfies a threshold. Based on a determination of occupancy, or lack thereof, a variety of corresponding features of the adjustable bed may be activated.