Clip-Mounted PIR Detector for Lighting Retrofit
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Solution Overview
Problem
Existing presence detectors are difficult to install and move within existing lighting systems, making them impractical for changing layouts in commercial and residential spaces, leading to inefficiencies in energy usage and increased costs for reinstallation.
Innovation Solution
A detector with a passive infra-red sensor and a clip system that allows easy attachment to existing light fittings, enabling simple installation and movement, with options for wired or wireless connectivity to lighting controllers, and the ability to integrate with other systems like climate or security systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If presence detectors are installed as part of a complete lighting system in recesses in walls or ceilings, then the detector provides automatic lighting control, but the detector becomes difficult to move and reinstall if layout changes occur
Solution Approach 1:
The detector is separated from the complete lighting system installation and made as an independent unit that can be attached to existing light fittings. The detector is divided into a body with sensor and a separate clip mechanism, allowing it to be installed independently on various light fittings without requiring recess installation or complex wiring during initial setup.
Solution Approach 2:
The detector is designed with a clip mechanism that enables it to be easily attached and detached from light fittings. The clip can be opened to release the detector from one light fitting and closed to attach it to another, providing dynamic repositioning capability without permanent installation.
2Reliability
If presence detectors are installed in recesses during initial lighting installation, then the detector is securely installed, but significant time and effort are required for reinstallation if layout changes occur
Solution Approach 1:
The clip mechanism is pre-designed and pre-configured in the detector body, allowing for quick attachment and detachment operations. The clip is prepared in advance with opening and closing mechanisms that enable rapid installation and reinstallation without requiring tools or complex procedures.
Solution Approach 2:
The detector is extracted from the permanent recess installation method and adapted to attach to existing light fittings through the clip mechanism. This extraction from traditional installation methods enables easy relocation without requiring demolition or complex rewiring, significantly reducing reinstallation time and effort.
3Extent of automation
If presence detectors are integrated into complete lighting systems, then the detector provides coordinated lighting control, but the system complexity increases and mobility is restricted
Solution Approach 1:
The detector is designed with universal compatibility to work with various types of light fittings through the standardized clip mechanism. The detector can be attached to different light fittings in different locations, providing multi-functionality and adaptability without requiring complex system integration for each installation scenario.
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 solution provides a flexible and efficient means to automatically control lighting based on occupancy, reducing energy waste and allowing for easy reconfiguration without significant costs or efforts, while maintaining stability through resilient materials and adjustable positioning.
Implementation Method 1
a passive infra-red sensor configured to detect the presence of a person within the detection field of the sensor
Data Source
AI summary
Embodiments of the present invention relate to a detector (100) suitable for attaching to a light fitting. The detector comprises a passive infra red sensor (102) and a clip (128) suitable for suspending the detector from a light fitting.