Automatic Swath Generation for Agricultural Vehicles
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Solution Overview
Problem
Current automatic guidance control systems for agricultural vehicles often require manual intervention to set boundaries, result in gaps or overlaps in field coverage, and do not optimize swath paths based on vehicle parameters, leading to inefficiencies and inconvenience.
Innovation Solution
An automatic guidance control system that generates swath paths from field boundary points, selects a base swath path, and automatically chooses a path based on vehicle parameters, allowing the vehicle to navigate efficiently without manual intervention, especially in corner areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual boundary marking is used to define field boundaries, then the system can establish coverage areas, but it requires constant time and fuel resources and needs frequent updating when boundaries change
Solution Approach 1:
The system performs preliminary action by using pre-existing GPS coordinates and agricultural field data to automatically define field boundaries and generate swath patterns before the vehicle begins operation. This eliminates the need for manual boundary marking during each operation, saving time and fuel resources while maintaining accurate boundary definition.
2Productivity
If automatic guidance systems generate swath patterns from field boundary points, then coverage can be established, but gaps are left in the corner areas of the field
Solution Approach 1:
The system applies local quality by implementing special corner detection and handling logic that identifies field corner areas and generates modified swath patterns specifically for these regions. The swath pattern generation adapts to local geometric characteristics, ensuring complete coverage in corner areas while maintaining efficient straight-row patterns in the main field areas.
3Manufacturing precision
If users manually drive the vehicle in corner areas to position the implement, then corner coverage can be achieved, but this requires additional manual intervention and is inconvenient
Solution Approach 1:
The system implements self-service by automatically detecting corner areas and generating appropriate swath patterns that guide the vehicle through corner regions without manual intervention. The automatic guidance system handles implement positioning in corners autonomously, eliminating the need for users to manually drive and position the implement while maintaining precise corner coverage.
4Adaptability or versatility
If the system requires user selection of guidance lines, then flexibility is provided, but this may result in suboptimal path selection and reduced efficiency
Solution Approach 1:
The system applies feedback by continuously monitoring the vehicle's current position, orientation, and operational parameters, then automatically selecting the optimal swath pattern and guidance line based on real-time conditions. The system evaluates multiple possible paths and selects the most efficient one, eliminating the need for user selection while maintaining adaptability to changing operational conditions.
Data Source
AI summary
A method for automatically generating swath paths and navigating a vehicle along the generated swath paths using a controller includes the steps of: marking a plurality of field boundary points; storing the field boundary points in a memory unit of the vehicle; generating a field boundary defining the plurality of field boundary points connected to one another; selecting an edge of the field boundary as a base swath path; generating a plurality of subsequent swath paths from the base swath path; measuring a set of parameters of the vehicle; and automatically selecting one of the subsequent swath paths for the vehicle to follow based on the set of parameters.