Wall Switch Occupancy Sensor and Lighting Control Integration
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Solution Overview
Problem
Conventional lighting control and motion sensing technologies require separate sensors for energy efficiency and security, leading to redundancy and increased installation costs, as they are not integrated into a single device that meets both energy and security needs effectively.
Innovation Solution
Integration of a low-voltage motion sensing alarm with a high-voltage light source within a standard wall junction box, utilizing a voltage conversion component to generate DC voltage for motion detection and alarm signaling, which can be wirelessly transmitted using various communication protocols, enabling energy efficiency and security controls in a single device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate sensors are used for lighting control and security, then each function can be performed independently, but device complexity and installation costs increase
Solution Approach 1:
The patent combines motion sensing capability and lighting control function into a single integrated device housed in a standard wall junction box. The motion sensor detects occupancy and triggers both lighting control and security alarm functions, eliminating the need for separate sensors while maintaining functional reliability through unified design.
Solution Approach 2:
The integrated device performs multiple functions simultaneously: it serves as a motion sensor for occupancy detection, a lighting control switch for energy management, and a security alarm trigger. This multi-functionality reduces the total number of devices needed while maintaining independent operational capability for each function.
2Reliability
If separate sensors are installed for lighting and security, then each system operates independently, but installation costs and complexity increase
Solution Approach 1:
The patent integrates motion sensing, lighting control, and security alarm functions into a single device that fits within a standard wall junction box. This consolidation reduces installation costs by requiring only one device installation location and one set of electrical connections, while maintaining system independence through modular functional design.
Solution Approach 2:
The integrated device segments different functions (motion detection, lighting control, security alarm) into distinct operational modules within a single physical unit. This allows independent operation of each function while sharing common infrastructure such as power supply and housing, reducing overall installation complexity and cost.
3Reliability
If multiple separate devices are used, then each function is specialized, but the solution becomes less cost-effective
Solution Approach 1:
The patent creates a universal device that performs motion sensing, lighting control, and security alarm functions within a single unit. This multi-functionality achieves cost-effectiveness by eliminating the need to purchase and install multiple separate specialized devices, while maintaining reliable specialized functionality for each purpose through dedicated circuitry and sensors.
Solution Approach 2:
The patent merges specialized functions into a single integrated device, achieving cost-effectiveness through reduced hardware requirements and simplified installation. The motion sensor, lighting control circuit, and security alarm components work together in unison, providing specialized functionality without the overhead of multiple separate devices.
Data Source
AI summary
Integrating a direct current (DC) voltage motion sensing alarm with an alternating current (AC) voltage light source is presented herein. A wall switch box can comprise a voltage conversion component that generates a DC voltage from an AC voltage that is higher in magnitude than the DC voltage, a motion sensing component detects a motion of an object using the DC voltage, and a security component that generates, based on the motion using the DC voltage, an alarm signal that has been encoded according to an encryption strength of a communication protocol corresponding to a transmission of the alarm signal from the wall switch box. In one aspect, a communication expansion component can wirelessly transmit, using the DC voltage based on control information specifying the communication protocol, the alarm signal according to the encryption strength. In another aspect, the encryption strength can correspond to at least 2128 combinations.