Harvester Turn Pattern Control for One-Sided Auger Constraints

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Solution Overview

Problem

Agricultural machines, such as combine harvesters, face difficulties in navigating complex turn patterns and identifying optimal land sizes during harvesting operations, leading to inefficiencies and extra passes required to harvest crops, especially when the unloading auger is only positionable over one side of the machine.

Innovation Solution

An agricultural system that automatically detects turn patterns and land sizes, allowing operators to specify or learn patterns, and generates signals to control the machine through the identified path, ensuring the unloading auger remains over harvested areas, and identifies the next land to be harvested.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the unloading auger is only positionable over one side of the machine, then the harvesting operation can be simplified, but the machine cannot efficiently handle complex turn patterns and multiple land sections

Engineering Contradiction:
Improveunloading auger positioningVSAvoidharvesting efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system dynamically adjusts turn patterns and navigation paths based on the fixed auger position. The automated guidance system modifies the harvesting pattern in real-time to ensure the auger remains over harvested areas while navigating complex turn patterns across multiple lands, resolving the contradiction between simple auger positioning and harvesting efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters including turn direction, land size, and path selection based on the fixed auger position. By automatically adjusting these parameters, the system maintains harvesting efficiency despite the limited auger positioning capability.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the operator manually defines turn patterns and paths, then the machine can be precisely controlled, but the operation becomes time-consuming and inefficient

Engineering Contradiction:
Improvepath definition accuracyVSAvoidtime to define and navigate paths
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs self-service by automatically detecting turn patterns, identifying land boundaries, and generating navigation paths without continuous operator input. The automated guidance system uses sensors and processors to independently determine optimal paths while ensuring the unloading auger remains over harvested areas.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates feedback mechanisms where the automated guidance system continuously monitors the machine's position, harvested area coverage, and auger location. This feedback enables real-time adjustments to maintain precise path definition while reducing operator workload and time consumption.

Inventive Principle:
Principle #23Feedback

3Productivity

If the machine makes alternating turns through the field, then the harvesting coverage is maximized, but extra passes are required when dealing with complex turn patterns

Engineering Contradiction:
Improvefield coverageVSAvoidextra passes required
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system dynamically optimizes turn patterns based on the specific field layout and harvested area. Instead of rigid alternating turns, the automated guidance system adapts the turn pattern to minimize extra passes while maintaining maximum field coverage, adjusting the navigation path in real-time.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the turn pattern parameters (direction, angle, timing) based on the fixed auger position and harvested area coverage. By automatically adjusting these parameters, the system eliminates unnecessary extra passes while maintaining efficient field coverage.

Inventive Principle:
Principle #35Parameter changes

4Measurement precision

If the operator continuously monitors and adjusts the harvesting path, then the navigation accuracy is maintained, but the operational complexity and time consumption increase

Engineering Contradiction:
Improvenavigation accuracyVSAvoidoperational complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs self-service navigation by automatically monitoring position, detecting turn patterns, and adjusting the path without continuous operator intervention. The automated guidance system uses onboard sensors and processors to maintain navigation accuracy independently.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates feedback loops where sensors continuously monitor the machine's position and the harvested area, and the processor automatically adjusts the navigation path to maintain accuracy. This feedback mechanism reduces operational complexity by eliminating the need for continuous manual monitoring.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11856890B2Automated turn patterns in an agricultural harvester
Publication Date: 2024.01.02 DEERE & CO
  • US11856890B2 patent drawing
  • US11856890B2 patent drawing
  • US11856890B2 patent drawing

AI summary

An agricultural system automatically detects a turn pattern and automatically identifies a next path that will be taken through the field. The agricultural system automatically controls the machine through the next turn that navigates the machine from a current path to the identified next path. This continues until a land size has been completed at which point the agricultural system identifies a next land in a field.