Combine Harvester Start Positioning From Unworked Region Corners
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Solution Overview
Problem
The position at which a combine harvester can capture the automated-travel start travel route does not necessarily match the position where it can start automated travel, leading to wasteful movement, such as turning, going backward, or taking detours.
Innovation Solution
A control device with a vehicle-position acquiring portion, field-contour setting portion, region setting portion, and start-position setting portion that sets the corner closest to the combine harvester's position within the unworked region as the automated-travel start position, optimizing the travel route for efficient automated travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the combine harvester uses a fixed automated-travel start position, then the automated travel system is simple to implement, but the harvester cannot smoothly move to the start position and must turn, go backward, or take detours
Solution Approach 1:
The patent applies dynamics by making the automated-travel start position variable rather than fixed. The control device dynamically determines the start position based on the harvester's current position and the unworked region's corner positions, allowing the system to adapt to different operational contexts and eliminate wasteful movements.
Solution Approach 2:
The patent changes the parameter of the start position from a fixed coordinate to a dynamically calculated position. By calculating the position of corners of the unworked region and comparing them with the harvester's current position, the system determines the optimal start position, thereby changing the spatial parameter adaptively.
2Productivity
If the combine harvester travels to capture the automated-travel start travel route, then automated travel can be initiated, but wasteful travel occurs when the capture position does not match the start position
Solution Approach 1:
The patent applies preliminary action by pre-calculating the optimal automated-travel start position based on the unworked region's corner positions before the harvester arrives. This allows the system to prepare the most efficient start position in advance, eliminating the need for wasteful adjustments once the harvester reaches the general area.
Solution Approach 2:
The patent uses feedback by continuously monitoring the harvester's position information and comparing it with the calculated corner positions of the unworked region. This feedback mechanism allows the system to dynamically adjust and determine the optimal start position based on real-time positional data, ensuring efficient travel routing.
3Productivity
If the combine harvester sets the automated-travel start position at a corner of the unworked region, then travel efficiency is improved, but additional calculation processing is required
Solution Approach 1:
The patent applies local quality by focusing the calculation on specific critical points (corners of the unworked region) rather than analyzing the entire field continuously. By identifying and comparing only the corner positions with the harvester's location, the system achieves efficient position determination with minimal computational overhead.
Data Source
AI summary
A control portion includes a vehicle-position acquiring portion, a field-contour setting portion, a region setting portion, and a start-position setting portion. The vehicle-position acquiring portion acquires position information indicating a position of a combine harvester. The field-contour setting portion sets a contour of a field on the basis of a plurality of pieces of the position information. The region setting portion sets an unworked region inside the contour on the basis of the plurality of pieces of the position information. The start-position setting portion sets a corner closest to a position of the combine harvester among a plurality of corners of the unworked region to an automated-travel start position on the basis of the position information.