Plant Growth Lighting Device with Height-Adjustable Lamp
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Solution Overview
Problem
Conventional lighting devices for plant cultivation lack the ability to automatically adjust light position according to the plant's growth stages, leading to insufficient lighting at early stages and potential light damage at later stages, while also being inefficient in energy usage and prone to interference from external factors.
Innovation Solution
A lighting device equipped with a light-emitting module, a lifting mechanism, and sensing mechanisms that detect plant height to adjust the light source position, combined with a control mechanism that includes a timing module to optimize light intensity and reduce energy consumption and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light source is fixed at a predetermined position, then the device structure is simple, but the lighting is insufficient at early plant growth stages and causes light damage at later stages
Solution Approach 1:
The patent applies the dynamics principle by making the light source position adjustable through a lifting mechanism. The light source can move vertically along the support rod, transitioning from a fixed position to a dynamic, adjustable position. This allows the lighting device to adapt to different plant growth stages by changing its height, resolving the contradiction between structural simplicity and lighting adaptability.
Solution Approach 2:
The patent implements feedback through sensing mechanisms that detect plant growth status and provide signals to the control system. The control system then adjusts the light source position accordingly. This closed-loop feedback mechanism enables automatic adaptation to different growth stages, achieving high adaptability while maintaining automated control that simplifies operation.
2Illumination intensity
If the light source is positioned close to the plant, then the lighting intensity is high for photosynthesis, but the plant suffers from light damage at later growth stages
Solution Approach 1:
The lifting mechanism enables dynamic adjustment of the light source distance from the plant. At early growth stages, the light source can be positioned closer to provide high intensity for photosynthesis. At later stages, it can be moved farther away to prevent light damage. This dynamic positioning resolves the contradiction between needing high intensity and avoiding harmful effects.
Solution Approach 2:
The patent changes the spatial parameter (distance between light source and plant) according to growth stage. By adjusting this parameter, the system optimizes light intensity to match plant needs at different stages, achieving high photosynthesis efficiency while preventing light damage through parameter adaptation.
3Object-affected harmful factors
If the light source is positioned far from the plant, then the plant is protected from light damage, but the lighting is insufficient for optimal plant growth
Solution Approach 1:
The adjustable lifting mechanism allows the system to dynamically change the light source position between close (for high intensity) and far (for protection). This dynamic capability enables the system to resolve the contradiction by positioning the light source appropriately based on real-time plant growth conditions, achieving both protection and sufficient lighting as needed.
4Measurement precision
If the sensing mechanism operates continuously, then the plant height detection is accurate, but the energy consumption increases
Solution Approach 1:
The control system implements periodic operation of the sensing mechanism rather than continuous operation. The sensor operates at specific intervals or triggered events, maintaining adequate detection accuracy while significantly reducing energy consumption compared to continuous operation. This periodic action resolves the contradiction between measurement precision and energy usage.
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 device provides suitable lighting conditions at different growth stages, reduces energy costs, minimizes interference, and ensures accurate height detection for proper lamp positioning, enhancing plant growth and economic value of produced products.
Implementation Method 1
each of the sensing mechanisms having a transmitter and a receiver configured with displacement, a signal sensing path being formed between the transmitter and the receiver
Data Source
AI summary
The present disclosure discloses a lighting device for plant growth, comprising: a lamp, a lifting mechanism, at least two sensing mechanisms and a control mechanism. A light-emitting module is disposed on the bottom surface of the lamp and two ends of the lifting mechanism are coupled to the top surface of the lamp and the control mechanism respectively. Each sensing mechanisms is disposed at the bottom of the lamp. The control mechanism comprises a timing module. When the sensing mechanisms operate that form a signal sensing path and sense a plant to generate a sensing signal, the control mechanism may drive the lifting mechanism according to the sensing signal to control the longitudinal displacement of the lamp. Through the automatic detection and position lifting function, it is possible to provide suitable light sources for plants at different growth stages.