Vegetation Ground Temperature Control With Embedded Heating Pipes

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Solution Overview

Problem

The accuracy of temperature control in vegetation grounds using grow lights is compromised due to the rise in ground temperature, necessitating improved methods for precise temperature management.

Innovation Solution

A vegetation ground temperature controlling method that utilizes a temperature adjuster in the irradiation area of grow lights, incorporating heat conduction analysis with weather data and grow light irradiation plans, and independent zone control to achieve precise temperature regulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If grow lights are used to promote turf growth, then growth is improved, but ground temperature rises and temperature control accuracy decreases

Engineering Contradiction:
Improveturf growthVSAvoidtemperature control accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The system uses temperature sensors to continuously monitor ground temperature and feeds this information back to the controller, which adjusts the heating/cooling medium flow to maintain target temperature despite grow light irradiation

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system changes the temperature parameters of the circulating medium (heating or cooling) dynamically based on real-time temperature measurements and control algorithms to compensate for temperature rises caused by grow lights

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If temperature adjuster is added to control ground temperature, then temperature control accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvetemperature control accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The temperature adjuster system serves multiple functions: it heats the ground when cold, cools the ground when overheated by grow lights, and maintains optimal temperature for turf growth under various lighting conditions

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

Solution Approach 2:

A circulating medium (water or air) acts as an intermediary to transfer heat between the temperature adjuster and the ground, enabling temperature control without direct contact between the adjuster and ground

Inventive Principle:
Principle #24Intermediary (Mediator)

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 accurate temperature control of vegetation grounds by considering thermal conductivity and weather conditions, ensuring optimal growth conditions despite varying light exposure zones.

Implementation Method 1

a temperature adjuster that is laid in the vegetation ground in an irradiation area of the grow light and performs at least one of heating and cooling

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

the temperature of the ground surface area is determined by heat conduction analysis including weather data including outside air temperature and outside air humidity, and an irradiation plan and an amount of irradiation of the grow light as boundary conditions

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 3

while irradiating a vegetation ground with light of a grow light from above

Methodology Applied
Scientific EffectLight irradiation: Light

Data Source

PatentEP3895522B1Method for controlling temperature of vegetation ground
Publication Date: 2025.10.15 SATO IND CO LTD
  • EP3895522B1 patent drawingFigure 1(a)~1(c)
  • EP3895522B1 patent drawingFigure 2~3
  • EP3895522B1 patent drawingFigure 4~5

AI summary

To enable temperature control of a vegetation ground with higher accuracy when growth is performed using grow lights. The above problem is solved by a vegetation ground temperature controlling method in which while irradiating a vegetation ground with light of a grow light 10 from above, a temperature of a ground surface area is controlled by supplying a heating medium to a pipe laid in the vegetation ground in an irradiation area of the grow light 10, wherein the temperature of the ground surface area is determined by heat conduction analysis including weather data including outside air temperature and outside air humidity, and irradiation data of the grow light 10 as boundary conditions, and the heating medium supplied to the pipe is controlled so that an underground temperature of the ground surface area becomes a target ground temperature while thermal conductivity of the ground is taken into consideration.