Luminaire Detection-Reflection Apparatus for Presence Sensing
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Solution Overview
Problem
Conventional luminaires with presence detection systems can only reduce energy consumption to a limited extent as they often require external devices and modify the luminaire structure, leading to inefficient control of individual light outputs.
Innovation Solution
Integrating a detection-radiation reflection apparatus within the luminaire to deflect electromagnetic radiation towards a presence detection apparatus, allowing each luminaire to independently control its light output without additional external devices or structural changes, using existing reflection apparatuses to detect presence and adjust lighting accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external presence detection devices are used, then presence detection capability is improved, but device complexity increases
Solution Approach 1:
The patent combines the presence detection apparatus with the luminaire structure, integrating the detection function into the existing luminaire rather than using separate external devices. This merging approach maintains presence detection capability while reducing overall device complexity by eliminating standalone detection units and their associated mounting structures.
Solution Approach 2:
The reflection apparatus in the luminaire is designed to serve dual purposes: reflecting light for illumination and reflecting detection radiation for presence detection. This multi-functionality allows the same structural component to fulfill both lighting and sensing roles, thereby improving presence detection capability without adding separate dedicated detection components.
2Measurement precision
If separate detection-radiation reflection apparatuses are added, then detection precision is improved, but device complexity increases
Solution Approach 1:
The existing reflection apparatus is configured to handle both visible light for illumination and electromagnetic detection radiation for presence detection. By designing the reflection apparatus with multi-functional capability, the system achieves precise detection without requiring separate dedicated detection-radiation reflection components, thus maintaining detection precision while avoiding increased device complexity.
Solution Approach 2:
The reflection apparatus is designed with specific reflective properties that enable it to effectively reflect both illumination light and detection radiation. By optimizing the reflective parameters and geometric configuration of the existing apparatus, the system achieves precise presence detection without adding separate detection-radiation reflection apparatuses.
3Reliability
If luminaire structure is modified for presence detection, then presence detection capability is improved, but ease of manufacture worsens
Solution Approach 1:
The presence detection apparatus is integrated into the existing luminaire structure rather than requiring separate mounting structures or significant structural modifications. This merging approach enables presence detection capability while maintaining the original manufacturing processes and structural design, thereby preserving ease of manufacture.
4Device complexity
If multiple luminaires are controlled by single presence detection apparatus, then device complexity is reduced, but productivity worsens
Solution Approach 1:
Each luminaire is equipped with its own presence detection apparatus, enabling independent and autonomous presence detection for each lighting unit. This segmentation allows each luminaire to independently adjust its operation based on local presence conditions, improving overall energy consumption reduction efficiency by preventing unnecessary illumination in unoccupied areas while maintaining simple individual control logic.
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
This solution enables precise control of light output based on presence, reducing energy consumption and extending the lifespan of LEDs by optimizing usage and temperature conditions, while maintaining a similar structure to standard luminaires.
Implementation Method 1
a reflection apparatus for deflecting light radiation emitted by the illuminants into an illumination region, wherein the reflection apparatus, at least at points, is embodied as a detection-radiation reflection apparatus and electromagnetic detection radiation is deflectable in the direction of the presence detection apparatus
Data Source
AI summary
A luminaire according to the invention has at least a number of illuminants and a reflection apparatus deflecting light radiation emitted by the illuminants into an illumination region, wherein a presence detection apparatus is assigned to the luminaire. In order to improve the control of every luminaire in view of the presence of a person and in order to further reduce the energy consumption, the reflection apparatus is, at least at points, embodied as a detection-reflection apparatus and electromagnetic detection radiation in particular is deflectable in the direction of the presence detection apparatus by way of the detection-reflection apparatus. The presence detection apparatus is arranged adjacent to the illuminants in the luminaire. The invention likewise relates to a method for presence detection, wherein electromagnetic detection radiation in particular is deflected in the direction of the present detection apparatus by way of a detection-reflection apparatus.