Automated Headland Turning for Agricultural Ploughs

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Solution Overview

Problem

Current agricultural ploughing methods require significant operator expertise and precision for efficient headland turning maneuvers, which can lead to soil compaction and inefficiencies, especially when dealing with varying field conditions and sizes.

Innovation Solution

A computer-implemented method that automatically determines and executes a suitable headland turning routine for an agricultural plough based on received control-data, including plough, trajectory, and field data, selecting from predetermined routines to optimize turning operations and prevent soil compaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual headland turning maneuvers are performed by operator, then flexibility in handling different field conditions is maintained, but operator expertise and precision are required leading to soil compaction and inefficiencies

Engineering Contradiction:
Improveheadland turning maneuverVSAvoidsoil compaction
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces manual mechanical control with an automated guidance system that uses GPS/RTK positioning and pre-programmed turning routines. The system automatically calculates and executes headland turning maneuvers based on field boundary data and plough trajectory, eliminating the need for operator intervention and the associated soil compaction problems.

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

Solution Approach 2:

The system changes the operational parameters by using real-time positioning data and dynamic trajectory calculation. Instead of fixed manual control, the system continuously adjusts the plough's position and orientation parameters based on GPS coordinates and pre-defined turning patterns, enabling precise control that prevents soil compaction.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If traditional headland turning methods are used, then simplicity of the control system is maintained, but significant operator expertise and precision are required

Engineering Contradiction:
Improvecontrol systemVSAvoidheadland turning maneuver
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system performs preliminary actions by pre-programming multiple turning routines (K-turn, Y-turn, U-turn, etc.) and storing field boundary data before operation. During actual headland turning, the system automatically selects and executes the appropriate pre-defined routine based on the current situation, ensuring reliable and consistent maneuvers without requiring complex real-time decision-making.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback through real-time GPS/RTK positioning that monitors the plough's actual position and compares it with the desired trajectory. This feedback loop allows the system to make automatic adjustments during headland turning maneuvers, ensuring high reliability and precision regardless of the chosen turning routine.

Inventive Principle:
Principle #23Feedback

3Productivity

If manual control is used for headland turns, then adaptability to varying field conditions is maintained through operator judgment, but inefficiencies and delays occur

Engineering Contradiction:
Improveploughing processVSAvoidheadland turning time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system introduces dynamics by enabling automatic selection among multiple turning routines based on real-time field conditions and plough position. The control system dynamically adjusts the turning maneuver parameters and executes the most efficient routine for the current situation, optimizing productivity while minimizing time loss during headland transitions.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3850932B1Method for controlling an agricultural plough
Publication Date: 2023.10.11 CNH IND SWEDEN AB
  • EP3850932B1 patent drawingFigure 1A
  • EP3850932B1 patent drawingFigure 1B
  • EP3850932B1 patent drawingFigure 1C

AI summary

The present disclosure relates to a computer-implemented method for controlling an agricultural plough, wherein the method comprises: receiving boundary-data indicative of a position of the agricultural plough with respect to a boundary between a work area and a headland of a field across which the agricultural plough is being moved; automatically determining a suitable headland turning routine; and executing the determined headland turning routine on the basis of the boundary-data received.