Capacitive Bed Occupancy Detection for Integrated 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, and lack an integrated system for accurately monitoring furniture environments.
Innovation Solution
A capacitive-based occupancy detection system is integrated into furniture items, using components like detection pads, wire grids, and processors to detect presence and activate corresponding features, ensuring accurate monitoring and control of automated furniture environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional occupancy-detection technology is used, then occupancy detection is provided, but integration with automated bedding systems is limited and control of features/accessories is restricted
Solution Approach 1:
The patent combines the occupancy detection system with the automated bedding system controller into a single integrated unit. The capacitive sensor, processor, and control logic are merged into the bedding system's existing controller architecture, enabling seamless communication and coordination between occupancy detection and bed feature control without requiring separate systems or complex pairing protocols.
Solution Approach 2:
The controller is designed to perform multiple functions: it serves as both the occupancy detection processor and the bed feature controller. This multi-functional design allows the same hardware and software platform to handle sensor data processing, occupancy determination, and actuation of bed features, thereby improving adaptability while maintaining reliable detection through a unified system architecture.
2Ease of operation
If occupancy detection is added to existing automated bedding systems, then feature control access is improved, but system complexity increases
Solution Approach 1:
By merging the occupancy detection functionality into the existing controller, the patent avoids adding separate hardware components and communication interfaces. The detection algorithm runs as software on the existing processor, and control signals are generated through the same output channels already used for bed features, thereby improving ease of operation without significantly increasing system complexity.
Solution Approach 2:
The system automatically determines occupancy status and activates appropriate features without requiring manual intervention or complex configuration. The processor continuously monitors capacitive sensor data, automatically interprets occupancy states, and triggers corresponding bed features, making the system easy to operate while keeping the integration logic self-contained within the existing control architecture.
3Measurement precision
If capacitive detection pads are integrated into furniture, then accurate occupancy monitoring is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent uses thin capacitive detection pads that can be flexibly integrated into the bedding system's existing structure. These thin-film sensors are placed on or near the mattress surface and connect to the controller through flexible wiring, allowing accurate occupancy detection while maintaining ease of manufacturing through simple integration into the existing bedding assembly without requiring rigid or complex sensor housings.
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
The capacitive-based system effectively detects occupancy, enabling seamless integration with automated bedding systems and allowing for the activation of various features and accessories, enhancing user experience and control.
Implementation Method 1
the capacitive component is adapted to have a capacitance signal 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.