Sensor Board for Luminaire with 180-Degree Sensor Orientation
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Solution Overview
Problem
Conventional lighting systems face challenges with false ambient light readings due to the use of sensors affected by ambient light, leading to inefficient energy consumption and lighting control.
Innovation Solution
A sensor board for luminaires featuring an environment sensor oriented 180° apart from a color sensor, with a camera and color sensor configured to minimize false readings by facing away and towards the luminaire respectively, allowing for accurate light measurement and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are used to detect ambient light for lighting control, then lighting can be adjusted based on user presence and location, but false ambient light readings occur leading to inaccurate control
Solution Approach 1:
The sensor board is divided into two separate sensing sides: one facing the luminaire (with color sensor and camera) and one facing away from the luminaire (with environment sensor). This segmentation allows the environment sensor to exclusively detect ambient light without interference from the luminaire's light output, thereby eliminating false readings and improving both measurement precision and control reliability
Solution Approach 2:
The environment sensor is extracted and positioned on the side of the sensor board facing away from the luminaire. This extraction separates the ambient light detection function from the luminaire light reception function, allowing the environment sensor to accurately measure only ambient light levels without being affected by the luminaire's emitted light
2Measurement precision
If conventional sensor placement is used, then the sensor unit can receive light from the light source, but false ambient light readings occur due to interference from the luminaire light
Solution Approach 1:
Instead of placing the environment sensor to face the luminaire (conventional approach), the patent inverts the approach by positioning the environment sensor on the opposite side of the sensor board, facing away from the luminaire. This inversion ensures that the environment sensor only detects ambient light and is completely shielded from luminaire light interference, eliminating false readings
Solution Approach 2:
The luminaire light, which was previously causing harmful interference to ambient light measurements, is now used beneficially by the color sensor and camera on the luminaire-facing side. These components utilize the luminaire light for color accuracy calibration and imaging, while the environment sensor on the opposite side remains unaffected, converting the potential harm into a useful dual-function system
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 sensor board effectively reduces false ambient light readings, enabling targeted lighting and minimizing energy consumption by providing precise light measurement and control, optimizing lighting based on user presence and location.
Implementation Method 1
an environment sensor disposed on a first side of the sensor board to function in a first direction
Implementation Method 2
a color sensor disposed on a second side of the sensor board to function in a second direction
Data Source
AI summary
According to some embodiments, a sensor board may be used with a luminaire. The sensor board may include an environment sensor disposed on a first side of the sensor board to function in a first direction and a color sensor disposed on a second side of the sensor board to function in a second direction. The environment sensor may include an adjustable lens assembly. The environment sensor and the color sensor may be oriented 180° apart from each on the sensor board and the first direction may be oriented 180° apart from the second direction.