Agricultural Route Planning for Soil Compaction Control

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Solution Overview

Problem

Existing route planning methods for agricultural areas fail to balance soil protection with practicality, leading to excessive fuel costs and soil compaction due to unnecessary detours aimed at avoiding repeated traversals, which are not effective in measuring soil compaction caused by agricultural processing machines.

Innovation Solution

A method that estimates soil compaction spatially and updates this data for each cultivation, considering machine and soil parameters to plan routes that avoid excessive compaction while minimizing detours, allowing for flexible route adjustments based on vehicle load and soil conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If detours are made to avoid re-routing areas already worked during a first pass, then soil compaction is reduced, but fuel costs increase and the proportion of area affected by compaction rises

Engineering Contradiction:
Improvesoil compactionVSAvoidfuel costs
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts route planning based on real-time soil compaction data and machine parameters. Instead of static avoidance of all previously worked areas, the planner adapts routes considering current soil conditions, machine weight, and operational requirements, optimizing the balance between soil protection and fuel efficiency

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes multiple parameters simultaneously including machine weight (by considering unloading points), soil compaction thresholds, and route geometry. By adjusting these parameters dynamically, the system can determine when detours are necessary versus when direct routing is acceptable based on current soil conditions

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If detours are made to avoid re-routing areas already worked, then soil compaction is reduced, but the proportion of area affected by compaction from previous passes rises disproportionately

Engineering Contradiction:
Improvesoil compactionVSAvoidarea affected by compaction
Core Design Contradiction:
Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The system applies different routing strategies to different areas based on local soil conditions. Instead of uniform avoidance of all previously worked areas, it identifies specific zones where compaction risk is high versus areas where repeated passes are acceptable, applying localized route adjustments rather than global detours

Inventive Principle:
Principle #3Local quality

3Productivity

If multiple passes are required on the same area, then cultivation completeness is improved, but soil compaction increases significantly

Engineering Contradiction:
Improvecultivation completenessVSAvoidsoil compaction
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary route planning that identifies and marks areas requiring multiple passes before actual cultivation begins. By pre-planning which areas will need repeated attention and scheduling appropriate intervals between passes, the system minimizes unnecessary compaction while ensuring complete cultivation coverage

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements periodic re-assessment of soil compaction levels between passes. By monitoring soil conditions and machine parameters periodically, it can determine optimal timing for subsequent passes, allowing soil recovery periods that reduce cumulative compaction effects while maintaining cultivation completeness

Inventive Principle:
Principle #19Periodic action

Data Source

PatentEP2267566B1Method and system for route planning
Publication Date: 2019.10.30 CLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH
  • EP2267566B1 patent drawingFigure 1~3
  • EP2267566B1 patent drawingFigure 4
  • EP2267566B1 patent drawingFigure 5~6

AI summary

A method for planning a route (3, 6, 7) for working an agricultural area (1) by a mobile machine (2) comprises the steps of estimating, at least horizontally, spatially resolved soil compaction resulting from previous working of the area by the same or a different machine (S10), and taking into account the determined soil compaction when determining the course of a route for the intended working of the area by the machine (S4-S9).