Multi-Wavelength Plant Lighting Layout for Flowering Control
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Solution Overview
Problem
Conventional LED lighting devices for plant growth struggle to quickly respond to diverse growth environments and adjust flowering and fruiting periods, leading to limited productivity and economic burdens due to the need for multiple LED types, particularly in regions where LEDs must be imported.
Innovation Solution
A lighting device with first, second, and third LEDs that output different wavelength bands, organized into a unit lighting unit, allowing for flexible control and rapid response to various growth situations, including adjustable flowering and fruiting periods, using a substrate with integrated circuit parts for power distribution and a cooling system to manage heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of LED lighting devices are purchased and installed to control different growth stages, then the adaptability to various growth environments is improved, but the device complexity and economic burden increase
Solution Approach 1:
The patent combines multiple LED types (first LEDs, second LEDs, and third LEDs with different wavelengths) into a single integrated lighting device. This merging allows the device to provide multiple wavelength bands simultaneously, enabling adaptation to various growth stages and environments without requiring separate lighting devices for each function, thereby reducing overall device complexity while maintaining versatility.
Solution Approach 2:
The lighting device is designed with multi-functionality by incorporating different LED types that can be selectively activated based on plant growth requirements. The first LEDs, second LEDs, and third LEDs can be controlled independently through switching devices, allowing a single device to perform multiple functions across different growth stages, from seedling to flowering to fruiting periods.
2Device complexity
If a single switching device controls multiple LEDs, then the device complexity is reduced, but the response speed to diverse growth situations deteriorates
Solution Approach 1:
The patent segments the control system by providing separate switching devices for each LED type (first LEDs, second LEDs, and third LEDs). This segmentation allows independent control of each LED group, enabling rapid response to specific growth requirements without being constrained by a single switching device that must control all LEDs simultaneously.
3Adaptability or versatility
If multiple LED lighting devices are used to cover all growth stages, then the adaptability is improved, but the loss of time for replacement and installation increases
Solution Approach 1:
By merging multiple LED types into a single integrated lighting device, the patent eliminates the need to replace entire lighting systems when transitioning between growth stages. Operators can simply adjust the switching devices to activate different LED types, significantly reducing the time loss associated with replacing multiple separate devices.
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
Enables precise control of light emission for plant growth, facilitating rapid responses to environmental changes and enhancing productivity by allowing operators to selectively induce flowering and fruiting periods, while reducing the economic burden of multiple LED types.
Implementation Method 1
the use of semiconductor light emitting diodes for plant cultivation has brought significant economic effects to crop cultivation
Implementation Method 2
semiconductor light emitting diodes for plant cultivation
Data Source
AI summary
Provided is a lighting device including a substrate, a plurality of first LEDs mounted on the substrate, installed in a line to be spaced apart from each other by a predetermined distance along a longitudinal direction of the substrate, and serially connected to each other to be simultaneously turned on/off, a plurality of second LEDs disposed between the first LEDs on a line on which the first LEDs are arranged, and serially connected to each other to be simultaneously turned on/off, and a plurality of third LEDs disposed to be located between the first LED and the second LED on the line where the first LEDs are arranged, and serially connected to each other to be simultaneously turned on/off. The plurality of the first LEDs, the second LEDs, and the third LEDs that are continuously disposed adjacent to each other may form one unit lighting unit.