Plant-Killing Electrode Circuit With Proximity Detection Control

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Solution Overview

Problem

Conventional methods for killing or controlling plant growth, such as herbicides, pose environmental and safety concerns, and alternative electrical methods are not widely adopted due to safety risks like combustion and lack of efficiency.

Innovation Solution

An electrical apparatus with a detection mode to identify plants in proximity and apply treatment energy only when necessary, using different energy levels for detection and treatment, and safety features to prevent human exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mechanical means (mowing, cutting, digging) are used to control plant growth, then plant growth can be controlled, but labor costs and time consumption increase

Engineering Contradiction:
Improveplant control efficiencyVSAvoidtime for manual plant control
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent replaces mechanical plant control methods (mowing, cutting, digging) with an electrical system that delivers controlled current through electrodes to plants. This substitution eliminates manual labor and mechanical equipment while achieving effective plant growth control through electrical stimulation, thereby improving productivity and reducing time loss.

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

2Object-affected harmful factors

If electrical current is applied to kill plants, then plant destruction is achieved, but risk of spreading to non-target plants increases

Engineering Contradiction:
Improveplant destruction effectivenessVSAvoidrisk of spreading to non-target plants
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent divides the treatment area into discrete zones with individually addressable electrode pairs. Each electrode pair targets a specific plant or small group of plants, allowing selective application of electrical current. This segmentation enables precise control where only intended target plants receive the full therapeutic or destructive dose, while adjacent non-target plants remain unaffected, thus eliminating the risk of harmful spread.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies different electrical current parameters (intensity, duration, frequency) to different local areas based on specific treatment needs. By tailoring the electrical stimulus locally to each target plant's requirements, the system achieves effective plant destruction or control at the application site while maintaining safety for surrounding vegetation through spatially differentiated treatment parameters.

Inventive Principle:
Principle #3Local quality

3Stability of the object's composition

If repeated mechanical control is performed, then plant growth is managed, but production time is consumed repeatedly

Engineering Contradiction:
Improveplant growth control stabilityVSAvoidrepeated control operations
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The electrical plant control system enables continuous or periodic treatment without interrupting overall production activities. Unlike mechanical methods that require stopping work for mowing or cutting operations, the electrical system can be applied continuously or on scheduled intervals, maintaining stable plant growth control while minimizing disruption to production workflows and eliminating repeated time-consuming mechanical interventions.

Inventive Principle:
Principle #20Continuity of useful action

4Productivity

If mechanical plant control methods are used, then plant growth is regulated, but labor costs increase

Engineering Contradiction:
Improveplant control effectivenessVSAvoidlabor cost for plant control
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent replaces labor-intensive mechanical plant control operations with an automated electrical delivery system. The system uses programmable power supplies and controlled electrode activation to eliminate the need for manual mowing, cutting, or digging operations. This substitution maintains effective plant growth regulation while dramatically reducing or eliminating labor costs associated with repeated mechanical control activities.

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

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 apparatus safely and efficiently kills or attenuates plant growth by minimizing energy usage and reducing safety hazards, making it safer and more efficient than existing electrical methods.

Implementation Method 1

a power supply in communication with the electrodes is configured to deliver an electrical current to the plant through the electrodes

Methodology Applied
Scientific EffectElectrical current: Conduction (electrical)

Data Source

PatentEP4152926B1Apparatus and method for electrically killing plants
Publication Date: 2026.05.13 UBIQUTEK
  • EP4152926B1 patent drawingFigure 1~2
  • EP4152926B1 patent drawingFigure 3~4
  • EP4152926B1 patent drawingFigure 5~6

AI summary

An electrical apparatus to kill a plant or at least attenuate plant growth, the apparatus comprising: an electrical energy supply unit; an applicator unit comprising an applicator electrode; a return unit comprising a return electrode; electrical circuitry; the electrical energy supply unit arranged to apply electrical energy through a transmission circuit comprising the applicator electrode, and the return electrode, wherein said electrical circuitry implements a plant treatment mode and a detection mode, wherein the electrical circuitry in the detection mode to determine a plant in operative proximity to the transmission circuit, and based on said determination activate the plant treatment mode in which treatment electrical energy, for killing or at least attenuating plant growth, is applied through the transmission circuit.