Image-Guided Weed Control for Targeted Herbicide Application

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Solution Overview

Problem

Current weed control methods, especially in industrial and railway areas, are time-consuming, resource-intensive, and environmentally impactful, as they often require broad application of herbicides, which can be chemically aggressive and inefficient.

Innovation Solution

An apparatus and system that utilize image analysis to determine the most appropriate mode of operation for vegetation control technologies, such as chemical sprays or high voltage systems, based on environmental conditions and weed types, allowing for targeted and minimized application of control methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If broad application of herbicides is used for weed control, then weed control effectiveness is improved, but environmental impact and chemical usage increase

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

Solution Approach 1:

The system applies different herbicide treatments to different locations based on image analysis of weed presence and types. Instead of uniform broad application, each zone receives targeted treatment only where weeds are detected, reducing overall chemical usage while maintaining control effectiveness in affected areas.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system performs preliminary image analysis and mapping of weed locations before applying herbicides. This advance detection allows precise positioning of chemical application only where needed, preventing unnecessary broad coverage and reducing environmental impact while ensuring effective control at identified weed sites.

Inventive Principle:
Principle #10Preliminary action

2Object-affected harmful factors

If manual weed control is used, then environmental impact is reduced, but time consumption and resource usage increase

Engineering Contradiction:
Improveenvironmental impactVSAvoidtime consumption
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The system replaces manual mechanical weed control with automated image analysis and targeted chemical application. Cameras and processing units detect weeds, and herbicides are automatically applied only to detected locations, eliminating the time-consuming manual labor while minimizing chemical usage to only where necessary, thus reducing environmental impact compared to broad spraying.

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

Solution Approach 2:

The system enables self-service weed control where the apparatus autonomously identifies weed locations through image analysis and automatically applies herbicides without human intervention. This automation dramatically reduces time consumption compared to manual control while maintaining precise application that limits environmental impact.

Inventive Principle:
Principle #25Self-service

3Loss of substance

If targeted weed control based on image analysis is used, then chemical usage is minimized, but system complexity increases

Engineering Contradiction:
Improvechemical usageVSAvoidsystem complexity
Core Design Contradiction:
Loss of substanceVSDevice complexity

Solution Approach 1:

The system integrates multiple functions into a single apparatus: image capture via cameras, processing and analysis of images to detect weeds, determination of herbicide application parameters, and controlled dispensing of chemicals. This multi-functional integration achieves targeted application that minimizes chemical usage while consolidating system complexity into one unified platform rather than separate systems.

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

Data Source

PatentEP4147942A1Apparatus for weed control
Publication Date: 2023.03.15 BAYER AG
  • EP4147942A1 patent drawingFigure 1
  • EP4147942A1 patent drawingFigure 2
  • EP4147942A1 patent drawingFigure 3a~3e

AI summary

The present invention relates to an apparatus for weed control. It is described to provide (210) a processing unit with at least one image of an environment. The processing unit analyses (220) the at least one image to determine at least one mode of operation of a vegetation control technology from a plurality of modes of operation of the vegetation control technology to be used for weed control for at least a first part of the environment. An output unit outputs (230) information that is useable to activate the vegetation control technology in the at least one mode of operation.