Hydroponic Conveyor System for Vertical Growing Area Expansion

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Solution Overview

Problem

Conventional greenhouses are inefficient in utilizing space and often result in significant waste of feed and water when using traditional growing systems, which limits the effective use of floor area for crop production.

Innovation Solution

A soilless plant growing system utilizing a conveyor with a closed-loop configuration that moves carriages with hydroculture growing trays, optimizing light exposure and space usage by tracing out a serpentine path, allowing for vertical extension of growing area and efficient irrigation and lighting systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional greenhouses use traditional static growing systems, then floor area is used for crop production, but space utilization is inefficient and light exposure is uneven

Engineering Contradiction:
Improvegrowing area utilizationVSAvoidfloor area
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent transitions from static floor-based growing to a dynamic three-dimensional conveyor system. Carriages carrying growing trays move along overhead conveyor tracks in a closed-loop serpentine pattern, utilizing vertical space and aerial volume rather than only floor area. This dimensional change enables approximately four times more growing area within the same greenhouse footprint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The system replaces static growing beds with dynamic moving carriages that travel along conveyor tracks. The carriages continuously move through the growing space, allowing plants to receive more uniform light exposure from multiple directions over time. This dynamic movement optimizes space utilization and light distribution compared to fixed positions.

Inventive Principle:
Principle #15Dynamics

2Productivity

If conventional greenhouses use traditional irrigation systems, then water and feed are delivered to plants, but significant amounts are wasted

Engineering Contradiction:
Improveresource efficiencyVSAvoidwater and feed waste
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The system incorporates feedback mechanisms where sensors monitor plant conditions and resource consumption. The control system adjusts irrigation and feeding rates based on real-time plant needs, preventing over-application. Nutrient solution composition and flow rates are dynamically optimized based on plant growth stage and environmental conditions, minimizing waste.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The closed-loop conveyor system enables efficient resource recovery and recycling. Nutrient solutions and water are collected from lower trays and reused for upper trays in the vertical stacking arrangement. This cascading reuse pattern recovers resources that would otherwise be wasted, significantly improving water and nutrient efficiency.

Inventive Principle:
Principle #34Discarding and recovering

3Illumination intensity

If static growing systems are used, then plants receive light from fixed positions, but light exposure is uneven

Engineering Contradiction:
Improvelight exposure uniformityVSAvoidgrowing system complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The moving carriages continuously change position relative to light sources as they traverse the serpentine conveyor path. This dynamic movement ensures that all sides of each plant receive light exposure over time, creating uniform illumination patterns. The system achieves even light distribution through motion rather than requiring complex multi-directional lighting arrangements.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3478050B1System and method for hydroponic plant growth
Publication Date: 2025.06.18 R & G FRESH HERBS
  • EP3478050B1 patent drawingFigure 1
  • EP3478050B1 patent drawingFigure 2
  • EP3478050B1 patent drawingFigure 3

AI summary

The present invention provides a soilless plant growing system using a conveyor to move plants around a closed loop (11), with a plurality of carriages mounted on the conveyor and at least one tray (7) configured to be received on each of the plurality of carriages, each tray (7) configured for growing at least one plant by means of hydroculture.