LED Spectrum and Flicker Control for Algae Cultivation

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Solution Overview

Problem

Existing methods for controlling light exposure in algae cultivation, such as agitation, are inadequate for optimizing growth quality and quantity, particularly due to the intensity and spectrum of light sources.

Innovation Solution

A control system utilizing LED lights controlled by a controller that adjusts the spectrum, intensity, and flickering frequency, integrated with sensors and remote devices for real-time monitoring and optimization of growth conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If direct sunlight is used for algae cultivation, then strong growth is achieved, but the light intensity is too strong for most algae

Engineering Contradiction:
Improvegrowth strengthVSAvoidlight intensity
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces LED lights as an intermediary light source between direct sunlight and the algae. The LED system can be positioned to provide filtered, controlled light that mimics the beneficial aspects of sunlight while eliminating the harmful intensity, thus mediating the interaction between light and algae.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the parameters of the light source by using LED technology that can independently control intensity and spectrum. The controller adjusts these parameters to match the optimal conditions for algae growth, transforming the light characteristics from harsh direct sunlight to gentle, controlled illumination.

Inventive Principle:
Principle #35Parameter changes

2Illumination intensity

If agitation is used to control light exposure, then light distribution is improved, but growth quality and quantity are not optimized

Engineering Contradiction:
Improvelight distributionVSAvoidgrowth quality and quantity
Core Design Contradiction:
Illumination intensityVSProductivity

Solution Approach 1:

The patent replaces the mechanical agitation system with an optical control system. Instead of physically moving or stirring the algae to distribute light, the system uses controllable LED lights that can be positioned and adjusted to achieve optimal light distribution statically, thereby eliminating the need for mechanical intervention.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces dynamic control of the LED light system through a controller that can adjust intensity and positioning in real-time. This dynamic optical control replaces static mechanical agitation, allowing the system to adapt light distribution to the actual needs of the algae at any given moment.

Inventive Principle:
Principle #15Dynamics

3Productivity

If LED lights with controlled spectrum and intensity are used, then growth optimization is achieved, but device complexity increases

Engineering Contradiction:
Improvegrowth optimizationVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent designs the LED system with multi-functionality, where a single LED array can perform multiple functions: providing light, controlling spectrum, adjusting intensity, and even mimicking natural light patterns. This universal approach consolidates what would otherwise require multiple separate devices into one integrated system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements a controller that can autonomously monitor and adjust the LED system based on pre-set parameters or feedback from sensors. The system serves itself by automatically optimizing light conditions without requiring constant manual intervention, thereby managing the complexity through automation rather than simplifying the hardware.

Inventive Principle:
Principle #25Self-service

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

Enhances the growth quality and quantity of algae by precisely managing light conditions and other environmental factors, enabling tailored growth strategies for different types and traits.

Implementation Method 1

a plurality of LED lights to provide the plant matter with light

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Implementation Method 2

the controller is adapted to control a flickering frequency of the LED lights. Preferably the flickering frequency is a frequency of on/off cycles of the LED light

Methodology Applied
Scientific EffectFlickering frequency modulation:

Data Source

PatentUS20250280775A1Control system
Publication Date: 2025.09.11 PROVECTUS ALGAE IP PTY LTD
  • US20250280775A1 patent drawing
  • US20250280775A1 patent drawing
  • US20250280775A1 patent drawing

AI summary

A control system for growing plant matter such as algae, the control system having a controller for controlling a plurality of LED lights, wherein the controller is adapted to control the spectrum and intensity of the LED lights. Preferably the controller is also adapted to control a flickering frequency of the LED lights.