Modular Smart Tool Arm for Precision Weed Removal

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Solution Overview

Problem

Traditional agricultural tools struggle to efficiently cultivate between commodity plants without damaging them, requiring manual labor to remove weeds in tight spaces.

Innovation Solution

A modular smart tool arm equipped with a machine vision module and articulating base, allowing for precise control and automation of agricultural tools to avoid commodity plants while effectively removing weeds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional agricultural tools are used for cultivation, then manual labor is required to remove weeds, but commodity plants may be damaged in tight spaces

Engineering Contradiction:

Improveweed removal efficiencyVSAvoiddamage to commodity plants

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces manual mechanical weeding with an automated robotic system equipped with computer vision and precision control. The robotic tool arm uses machine learning models to identify weeds versus commodity plants, then applies mechanical removal forces only to detected weeds, eliminating the need for manual labor while preventing damage to valuable plants through automated discrimination and precise force control.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary computer vision system between the cultivation tool and the plants. This vision system acts as a mediator that first identifies and classifies objects in the field, then guides the tool arm to selectively target only weeds. This intermediary layer enables automated weed removal while protecting commodity plants by preventing direct contact with non-target vegetation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If automated tools are introduced to reduce manual labor, then weed removal efficiency improves, but device complexity increases

Engineering Contradiction:

Improvecultivation efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the automated cultivation system into distinct functional modules: a computer vision module for detection, a machine learning model for classification, a control system for navigation, and a mechanical tool arm for execution. This modular segmentation allows each component to be optimized independently and simplifies the overall system architecture, making the complex automated system more manageable and maintainable while achieving high cultivation efficiency.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent designs a universal robotic platform that can perform multiple agricultural tasks including weed removal, planting, and soil cultivation. The tool arm and control system are configured to handle various operations, reducing the need for separate specialized equipment. This multi-functionality decreases overall system complexity by consolidating multiple functions into a single integrated platform while maintaining high productivity across different cultivation tasks.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12279540B2Smart tool arm for precision agriculture

Publication Date: 2025.04.22 STOUT IND TECHNOLOGY INC

AI summary

An illustrative modular smart tool arm operable by a precision agricultural implement includes a mount for coupling the tool arm to the implement, an articulating base including a pair of linkages, a lift actuator, and linear motion bearings coupling the base to the mount. A unitary backbone member is coupled to the linkages and defines a mount for an agricultural tool and defines a mount for a machine vision module.