Plant Factory Lighting Control for Variable Growth Stages
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Solution Overview
Problem
Current plant factory systems fail to meet the varying lighting requirements of different plant types at different growth stages and lack real-time illumination adjustments, leading to suboptimal plant growth and inefficiencies.
Innovation Solution
A plant factory with a culture room divided into multiple areas, equipped with a lighting assembly using LED lights of varying wavelengths, a CO2 concentration control module, an air conditioning module, and a nutrient supplying module, all controlled by a central module that adjusts conditions based on plant type and growth stage, ensuring optimal lighting, CO2, temperature, and humidity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If natural light is used in large glass greenhouses or plastic greenhouses, then the cost is cheaper and production efficiency is faster, but the types of plants are limited and space utilization is low
Solution Approach 1:
The culture room is divided into multiple planting areas, each capable of independent control of lighting conditions. This segmentation allows different plant types to be cultivated in the same facility under their specific lighting requirements, thereby increasing both productivity and adaptability.
Solution Approach 2:
Each planting area is equipped with independent lighting assemblies that can be adjusted to provide specific wavelength compositions tailored to the particular plant types being cultivated in each area, enabling diverse plant cultivation under optimized local conditions.
2Adaptability or versatility
If artificial light is used to achieve continuous production and off-season green vegetables, then the types of plants and space utilization improve, but the cost and energy consumption increase
Solution Approach 1:
The lighting assembly uses adjustable LED modules that can dynamically change wavelength composition and intensity based on plant growth stage and type. This dynamic adjustment optimizes energy utilization by providing only the necessary spectrum for each plant's developmental needs, reducing overall energy consumption while maintaining high adaptability.
Solution Approach 2:
The system changes lighting parameters including wavelength composition, intensity, and duration according to different plant types and growth stages, thereby optimizing energy efficiency while maintaining the ability to cultivate diverse plant types continuously.
3Adaptability or versatility
If current plant factory systems use fixed lighting conditions, then the device complexity is low, but the lighting requirements of different plant types at different growth stages are not met
Solution Approach 1:
The lighting assembly uses a universal LED module design that can serve multiple plant types and growth stages through software control of wavelength and intensity, eliminating the need for separate lighting systems for different plants while meeting diverse lighting requirements.
Solution Approach 2:
The system incorporates sensors that monitor plant growth parameters and provide feedback to the control system, which automatically adjusts lighting conditions to optimize growth, thereby achieving high adaptability through intelligent control rather than complex hardware.
4Productivity
If current systems lack real-time illumination adjustment, then the device complexity is low, but plant growth efficiency is reduced
Solution Approach 1:
Real-time sensors monitor plant growth parameters and environmental conditions, providing continuous feedback to the control system that adjusts illumination in real-time to optimize growth efficiency, achieving high productivity through closed-loop control.
Solution Approach 2:
The system maintains continuous monitoring and adjustment of lighting conditions throughout the growth cycle, ensuring that plants always receive optimal illumination without interruption, thereby maximizing growth efficiency through uninterrupted useful action.
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 allows for precise control of growth conditions, enabling plants to reach their growth potential, improving planting efficiency and achieving lean production with zero stock, thus addressing the limitations of existing systems.
Implementation Method 1
The lighting assembly includes a light driving module, lighting elements, a monitoring module and a light intensity sensing module; the light driving module is connected with the lighting elements; the light driving module, the monitoring module and the light intensity sensing module is connected with the controlling module; the lighting elements are provided with a plurality of LED lights at different wavelengths
Implementation Method 2
Plant factory, as an important producing way of fruits and vegetables, grains and saplings in the future, has received wide attention
Data Source
AI summary
A plant factory includes a culture room, a lighting assembly, a CO2 concentration generation controlling module, an air conditioning module, a nutrient supplying module and a controlling module. The plant factory controls the lighting assembly to meet the lighting requirement of the different types of plants at each growth stage and the different types of plants at each growth stage are in the optimal growth state and grow in a predetermined manner of meeting the corresponding growth schemes. The plant factory improves planting efficiency and realizes lean production to achieve the zero inventory target meeting plant production characteristics.