Weed Control System Using Heated Biodegradable Foam Mixture

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Solution Overview

Problem

Traditional weed control methods using pesticides and open flames are environmentally hazardous and costly, with existing systems lacking precise control over temperature, pressure, and mixture distribution, leading to inefficiencies and potential environmental poisoning.

Innovation Solution

A system comprising a water container and biodegradable foam extract container connected to a heater and pumps, with a user-interface for computer-controlled temperature, pressure, and mixture distribution, applying a mixture of hot water and foam to control weeds without pesticides or open flames.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pesticides are used for weed control, then effective weed control is achieved, but environmental pollution and hazards to useful plants occur

Engineering Contradiction:
Improveweed control effectivenessVSAvoidenvironmental pollution
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the physical parameters of water (heating to high temperature) to create a weed control agent that achieves effective weed control without the environmental pollution of pesticides. The hot water penetrates weed cell walls and causes cell rupture, providing a chemical-free alternative.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention replaces the chemical mechanism of pesticides with a physical mechanism (thermal energy). The hot water uses heat energy to destroy weed cells through thermal penetration and cell wall rupture, substituting chemical action with physical action.

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

2Reliability

If open flame burning is used for weed control, then weed control is achieved, but environmental hazards from exhaust gases and fire risks occur

Engineering Contradiction:
Improveweed control effectivenessVSAvoidexhaust gases and fire hazards
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention replaces the combustion process of open flame burning with a direct water heating and spraying system. Instead of using fuel combustion to kill weeds, the system heats water and applies it directly to weeds, eliminating exhaust gases and fire hazards while maintaining weed control effectiveness.

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

Solution Approach 2:

The invention introduces hot water as an intermediary substance between the heat source and the weeds. Rather than applying fire directly to weeds, the system uses heated water as a medium to transfer thermal energy to weeds, controlling the heating process and eliminating uncontrolled combustion.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If computer-controlled temperature and pressure regulation is implemented, then treatment precision and efficiency are improved, but system complexity increases

Engineering Contradiction:
Improvetreatment efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The invention implements feedback control through temperature sensors and pressure regulators that continuously monitor and adjust the hot water parameters. This automated feedback system maintains optimal treatment conditions without requiring complex manual intervention, improving treatment consistency and efficiency.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system incorporates automatic temperature and pressure regulation that self-adjusts treatment parameters based on sensor feedback. The computer-controlled system autonomously manages the heating and spraying processes, reducing the need for constant manual monitoring and simplifying operation despite the sophisticated control mechanisms.

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

This system provides efficient, long-lasting, and environmentally friendly weed control by precisely controlling the temperature and distribution of a mixture of hot water and biodegradable foam, reducing the need for pesticides and minimizing environmental impact.

Implementation Method 1

a heater for heating a mixture of water and foam extract

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

the heat causes cell-walls in the weeds to blow and the evaporation from the weeds is increased which causes drying-out of the weeds

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP2845481B1System for weed control
Publication Date: 2016.07.20 NCC ROADS HLDG
  • EP2845481B1 patent drawingFigure 1~3

AI summary

The present invention relates to a system (10) for weed control of a surface (21) of treatment, comprising a water container (12) and a container (14) for biodegradable foam extract, which containers (12, 14) are connected by means of first (12a) and 5 second (14a) conduits, respectively, to a heater (16) for heating a mixture (20) of water and foam extract, which heater (16) is connected to a first pump (18) and further to at least a nozzle (19) adapted to distribute the mixture of water and foam extract on the surface (21) of treatment, wherein the second conduit (14a) comprises a pre-heater (14b) and a second pump (14c), wherein the pre-heater (14b), and the pumps (18, 14c) are adapted to be controlled by means of a user-interface (22) such as a computer controlled monitor and control software for operation thereof and interaction with a user..