Combine Route Planning for Stable Multi-Row Reaping
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Solution Overview
Problem
Existing combine harvesters face issues with defective conditions such as reduced threshing accuracy and straw entrapment when performing reaping work with a small number of rows due to non-multiple row configurations, which existing technologies do not adequately address.
Innovation Solution
A combine harvester with a travel route generation unit that sets a lower limit number of reaping rows and adjusts the number of rows per path to ensure the maximum number of reaping rows is utilized, minimizing defective conditions by optimizing the travel route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the maximum number of reaping rows is set to each path, then productivity is improved, but the number of paths increases causing defective conditions when total rows is not a multiple
Solution Approach 1:
The patent applies local quality by differentiating the number of reaping rows between different paths. Specifically, the first path (headland path) uses a first number of reaping rows while the second path (field path) uses a second number of reaping rows, allowing each path to be optimized for its specific operational context rather than applying a uniform configuration across all paths
Solution Approach 2:
The patent implements dynamics by making the reaping row configuration adaptable to different path types and operational conditions. The control unit dynamically adjusts which reaping units are activated based on whether the combine is operating on the headland path or field path, enabling flexible optimization of both productivity and reliability according to the current operational context
2Adaptability or versatility
If the number of reaping rows is reduced to accommodate non-multiple row configurations, then adaptability is improved, but threshing accuracy deteriorates
Solution Approach 1:
The patent applies local quality by differentiating the number of reaping rows between different paths. Specifically, the first path (headland path) uses a first number of reaping rows while the second path (field path) uses a second number of reaping rows, allowing each path to be optimized for its specific operational context rather than applying a uniform configuration across all paths
Solution Approach 2:
The patent implements parameter changes by varying the number of active reaping units based on the path type. The control unit adjusts the operational parameters (number of engaged reaping units) according to whether the combine is on the headland path or field path, enabling the system to adapt to different row configurations while maintaining optimal threshing performance on the critical field path
3Productivity
If more paths are created to cover all rows, then completeness of reaping is improved, but the likelihood of defective conditions increases
Solution Approach 1:
The patent applies segmentation by dividing the reaping operation into distinct path segments with different characteristics. The headland path and field path are treated as separate segments with different reaping row configurations, allowing the system to manage complexity by breaking down the overall reaping task into manageable segments with optimized parameters for each
Data Source
AI summary
A combine includes a control device configured to function as a travel route creating unit which creates a travel route corresponding to an agricultural field, and as an automatic operation control unit which controls automatic traveling and automatic reaping along the travel route. The travel route creating unit, when creating a travel route for carrying out automatic reaping travel in which, with respect to a work area with a plurality of rows in an agricultural field, a plurality of trips are made back and forth along a row direction, creates the travel route by setting, on the basis of a total number of rows, a maximum number of rows to be reaped, and a lower-limit number of rows to be reaped in the work area, the lower-limit number of rows to be reaped or more for each trip.