Multi-Layer Plant Cultivation Device with Feedback Illuminance Control
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Solution Overview
Problem
Existing plant cultivation methods face challenges in providing uniform light irradiation, leading to varying growth rates among plants, especially when relying on natural light or artificial light sources, which can result in inefficient land use and poor plant development.
Innovation Solution
A plant cultivation device and method that incorporates a holder with multiple plant cultivation layers, a lighting unit, and an illuminance detecting unit, where the control unit adjusts lighting intensity based on measured illuminance to maintain light within a set range, ensuring uniform light distribution across all plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If natural light or artificial light sources are used for plant cultivation, then plants can perform photosynthesis and grow, but light distribution is non-uniform leading to varying growth rates among plants
Solution Approach 1:
The patent implements a feedback control system where illuminance detection units measure the actual light intensity received by plants, and control units adjust the lighting units accordingly to maintain uniform illuminance across all plant cultivation layers. This closed-loop feedback mechanism ensures consistent light distribution and uniform plant growth rates.
Solution Approach 2:
The patent dynamically adjusts lighting parameters (intensity, duration, spectral composition) based on real-time illuminance measurements and plant growth requirements. By changing lighting parameters adaptively, the system optimizes photosynthesis efficiency and ensures uniform growth across different plant positions and layers.
2Productivity
If multiple plant cultivation layers are stacked to increase land use efficiency, then land utilization improves, but light penetration and distribution to lower layers become insufficient
Solution Approach 1:
The patent transitions from two-dimensional horizontal light distribution to three-dimensional vertical light distribution by placing lighting units at multiple heights and orientations. This spatial arrangement ensures that light penetrates effectively through multiple cultivation layers, providing sufficient illumination to plants in upper, middle, and lower layers simultaneously.
Solution Approach 2:
The patent divides the lighting system into multiple independent lighting units distributed across different heights and positions, each serving specific cultivation layers. This segmentation allows targeted light delivery to different vertical zones, ensuring adequate light penetration and distribution throughout the multi-layer structure.
3Productivity
If lighting intensity is increased to ensure sufficient light for all plants, then photosynthesis efficiency improves, but energy consumption increases
Solution Approach 1:
The patent employs dynamic lighting control where illuminance detection units continuously monitor actual light conditions, and control units adjust lighting intensity in real-time based on plant needs, environmental conditions, and growth stage. This dynamic adjustment ensures sufficient light for photosynthesis while minimizing energy consumption by avoiding unnecessary high-intensity lighting when natural light or lower intensity is adequate.
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 ensures that plants receive consistent light intensities, promoting uniform growth rates and improving productivity by optimizing land use and reducing the impact of light source limitations.
Implementation Method 1
an illuminance detecting unit configured to detect a light irradiation received by the plant in the plant cultivation layer to obtain an illuminance measurement
Implementation Method 2
a lighting unit disposed in the at least one plant cultivation layer and configured to emit light irradiating a plant cultivated in the plant cultivation layer
Implementation Method 3
the plant can produce sugar from water and carbon dioxide under the light condition so as to obtain nutrients, which is a basis of vital movement for the plant and is referred to as the photosynthesis
Data Source
AI summary
A plant cultivation device and a plant cultivation method are disclosed. The plant cultivation device includes: a holder including at least one plant cultivation layer; a lighting unit disposed in the at least one plant cultivation layer to allow light emitted from the lighting unit to irradiate a plant cultivated in the plant cultivation layer; an illuminance detecting unit configured to detect an illuminance in the plant cultivation layer to obtain an illuminance measurement; and a control unit configured to obtain the illuminance measurement and adjust a lighting intensity of the lighting unit according to the illuminance measurement.