Row Cleaner Aggressiveness Control Using Optical Soil Flow

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Solution Overview

Problem

Current seed-planting implements lack systems for determining the aggressiveness of row cleaner assemblies, which can lead to inadequate debris removal or soil disturbance during seed planting.

Innovation Solution

A system and method using optical flow sensors to determine the aggressiveness of row cleaner wheels by analyzing soil particle movement, adjusting their position relative to the field surface using computing systems and actuators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the row cleaner assembly is made more aggressive to improve debris removal, then debris removal effectiveness is improved, but soil disturbance increases

Engineering Contradiction:
Improvedebris removal effectivenessVSAvoidsoil disturbance
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system uses optical flow sensors to detect soil particle movement and provides feedback to the computing system, which determines aggressiveness parameters and adjusts row cleaner wheel position accordingly. This closed-loop feedback mechanism allows the system to optimize debris removal while preventing excessive soil disturbance by continuously monitoring and adjusting based on actual field conditions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system changes the operational parameters of the row cleaner assembly by adjusting the position of the row cleaner wheels relative to the ground surface. The computing system determines an aggressiveness parameter based on optical flow sensor data and controls actuators to modify wheel position, thereby changing the degree of soil engagement to achieve optimal debris removal without excessive soil disturbance.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If the row cleaner assembly is made less aggressive to reduce soil disturbance, then soil disturbance is reduced, but debris removal effectiveness decreases

Engineering Contradiction:
Improvesoil disturbanceVSAvoiddebris removal effectiveness
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The optical flow sensors continuously monitor soil particle movement and provide feedback to the computing system. When debris removal effectiveness is insufficient, the system receives feedback indicating inadequate soil disturbance, allowing it to increase aggressiveness parameter and adjust wheel position to improve debris removal while maintaining control over soil disturbance levels.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The row cleaner wheel position is made dynamically adjustable rather than fixed. The actuators enable real-time modification of wheel position based on varying field conditions, allowing the system to optimize the balance between debris removal effectiveness and soil disturbance reduction by adapting aggressiveness to local conditions.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If optical flow sensors are used to determine row cleaner aggressiveness, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improveaggressiveness determination precisionVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical measurement methods with optical flow sensors that use light-based detection to measure soil particle movement. This substitution provides more precise measurement of aggressiveness parameters while the modular integration of sensors, computing system, and actuators manages overall device complexity through standardized electronic components rather than complex mechanical linkages.

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

Optimizes debris removal without disturbing the soil, enhancing seed-planting efficiency by quantifying row cleaner aggressiveness with minimal computing resources.

Implementation Method 1

an optical flow sensor configured to generate data indicative of a movement of soil particles within the field relative to the seed-planting implement

Methodology Applied
Scientific EffectOptical flow:

Data Source

PatentUS12538863B2System and method for determining row cleaner aggressiveness of a seed-planting implement
Publication Date: 2026.02.03 CNH INDUSTRIAL AMERICA LLC
  • US12538863B2 patent drawing
  • US12538863B2 patent drawing
  • US12538863B2 patent drawing

AI summary

A system for determining row cleaner aggressiveness of a seed-planting implement includes a row cleaner assembly having a row cleaner arm and a row cleaner wheel rotatably coupled to the row cleaner arm. Furthermore, the system includes an optical flow sensor configured to generate data indicative the movement of soil particles within a field across which the seed-planting implement is traveling relative to the seed-planting implement. Additionally, a computing system of the disclosed system includes is configured to determine a flow parameter associated with the movement of the soil particles relative to the seed-planting implement based on the data generated by the optical flow sensor. Furthermore, the computing system is configured to determine an aggressiveness parameter indicative of the amount of engagement between the row cleaner wheel and the surface of the field based on the determined flow parameter.