UV Lighting System Uniformity Control via Feedback Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing controlled lighting systems for plants struggle to maintain optimal light intensity distribution across the surface of light-sensitive objects, leading to variations that can impact plant growth and photosynthesis.
Innovation Solution
A smart lighting system that incorporates an array of ultraviolet, visible, and infrared radiation sources, coupled with light sensors and a controller, to optimize irradiation settings and maintain a predetermined light intensity distribution pattern over the surface of light-sensitive objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional lighting systems are used without feedback control, then the system structure is simple, but the light intensity distribution varies significantly across the surface of light-sensitive objects
Solution Approach 1:
The patent implements a feedback control system where light sensors detect the actual light intensity at the surface of light-sensitive objects, and a controller adjusts the power of radiation sources based on this feedback to maintain predetermined light intensity distribution patterns. This closed-loop feedback mechanism resolves the contradiction by enabling precise light intensity control while managing system complexity through automated regulation.
Solution Approach 2:
The system dynamically adjusts the operational parameters of radiation sources based on real-time environmental conditions and measured light intensity distributions. The controller modifies power levels of individual sources to compensate for variations in object position, environmental factors, and aging effects, thereby maintaining optimal light intensity uniformity across the surface.
2Area of stationary object
If multiple radiation sources are used to cover the surface, then the light intensity coverage is improved, but the variation in light intensity across different areas increases
Solution Approach 1:
The patent applies local quality by assigning different power levels to individual radiation sources based on their specific positions and the local light intensity requirements. The controller independently adjusts each source's output to compensate for positional variations, ensuring that each area receives the appropriate light intensity to achieve overall uniform distribution across the entire irradiated surface.
3Manufacturing precision
If environmental conditions are not monitored, then the system operation is simple, but the light intensity distribution drifts from optimal values
Solution Approach 1:
The system continuously monitors environmental conditions and light intensity distribution, using this feedback to dynamically adjust radiation source power levels. This ensures that the light intensity distribution remains accurate and optimal despite changes in environmental factors such as temperature, humidity, or object position, resolving the contradiction between monitoring complexity and distribution accuracy.
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 system achieves uniform light intensity distribution with minimal variance, enhancing plant growth and photosynthesis by providing optimal light conditions tailored to various environmental conditions.
Implementation Method 1
light sensors to detect light intensity at a surface of a light sensitive object
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An approach for controlling ultraviolet intensity over a surface (12) of a light sensitive object (14) is described. Aspects involve using ultraviolet radiation with a wavelength range that includes ultraviolet-A and ultraviolet-B radiation to irradiate the surface (12). Light sensors measure light intensity at the surface (12), wherein each sensor measures light intensity in a wavelength range that corresponds to a wavelength range emitted from at least one of the sources (18). A controller (22) controls the light intensity over the surface (12) by adjusting the power of the sources (18) as a function of the light intensity measurements. The controller (22) uses the light intensity measurements to determine whether each source (18) is illuminating the surface (12) with an intensity that is within an acceptable variation with a predetermined intensity value targeted for the surface (12). The controller (22) adjusts the power of the sources (18) as a function of the variation to ensure an optimal distribution of light intensity over the surface (12).