Concentric LED Plant Lamp with Multi-Position Switch
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Solution Overview
Problem
Current plant growth lamps require frequent replacement to accommodate different spectral needs at various crop stages, leading to increased operational and economic costs due to the need for multiple lamps with distinct wavelengths.
Innovation Solution
A plant growth lamp with a main lamp body, light sources, a switching circuit, and a driving board that includes a multi-position switch and MOS transistors, allowing for independent output of different wavelengths and spectrums by controlling the red, blue, and white light sources through a single-chip microcomputer-based main control circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple plant growth lamps with different wavelengths are used to satisfy crop spectral needs at different stages, then the spectral requirements can be met, but the device complexity and operational cost increase due to needing multiple lamps
Solution Approach 1:
The patent combines multiple LED light sources with different wavelengths (red, blue, green, yellow, purple) into a single plant growth lamp assembly. Each wavelength corresponds to different crop growth stages, and all are integrated into one device with a unified structure including lamp body, drive circuit, and control system, eliminating the need for multiple separate lamps
Solution Approach 2:
The plant growth lamp is designed as a multi-functional device that can provide different spectral compositions for different crop growth stages (seeding, growing, flowering, fruiting) using a single lamp unit. The lamp includes multiple LED chips of different wavelengths that can be independently controlled to meet varying spectral requirements throughout the crop lifecycle
2Adaptability or versatility
If multiple plant growth lamps with different wavelengths are replaced repeatedly to meet crop spectral needs, then the spectral requirements can be satisfied, but the operational and economic costs increase
Solution Approach 1:
By integrating all necessary wavelength components into a single lamp assembly, the patent eliminates the need for repeated replacements. The unified design allows the lamp to serve throughout the entire crop growth cycle by switching between different wavelength combinations internally, saving time and labor associated with frequent lamp changes
3Adaptability or versatility
If multiple plant growth lamps with different wavelengths are maintained in inventory to meet crop spectral needs, then the spectral requirements can be satisfied, but the economic cost increases
Solution Approach 1:
The patent consolidates what would have been multiple separate lamps into one integrated unit. By including all necessary LED wavelength sources (red, blue, green, yellow, purple) and control circuitry in a single assembly, the system reduces inventory requirements from multiple lamps to just one versatile lamp per location
4Adaptability or versatility
If a single plant growth lamp emits all wavelengths simultaneously, then all crop spectral needs can be met, but the energy consumption increases
Solution Approach 1:
The patent implements dynamic control of LED wavelength emission through independent control circuits for each LED type. The system can adjust which wavelengths are active and at what intensity based on real-time crop growth stage detection or user input, allowing energy-efficient operation by emitting only the wavelengths needed for the current growth phase rather than all wavelengths continuously
Solution Approach 2:
The control circuit can vary the emission parameters (intensity, duration, combination) of different LED wavelengths based on crop growth stage requirements. This parameter adjustment allows the system to optimize energy consumption by matching spectral output to the specific physiological needs of crops at different developmental stages
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 the lamp to adapt to various crop stages without the need for multiple lamp replacements, reducing operational and economic costs while ensuring optimal spectral output for seeding, growing, and flowering stages.
Implementation Method 1
the light sources include a red light source, a blue light source, and a white light source
Data Source
AI summary
A lamp includes a main lamp body, a plurality of red light sources, a plurality of blue light sources, a plurality of white light sources, a driving board connected to the light sources to drive them to emit light, a main control circuit configured to control the driving board, and a switching circuit with a multi-position switch. The red, blue and white light sources are arranged in corresponding concentrical rings, with the red light sources in a central ring, the blue light sources in a middle ring, and the white sources in an outer ring. The multi-position switch is switched to provide input signals to the main control circuit, such that the light sources are driven to output different spectrums to meet desired plant growth spectrums.