Planter Path Planning Using Interference-Based Exclusion Zones
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Solution Overview
Problem
Existing planting technologies face challenges in efficiently planning paths to avoid interference between subsequent planting paths, leading to reduced crop yields and waste of crop inputs, as previous paths can interfere with new planting paths, especially in the buffer zones around fields.
Innovation Solution
A method and system that utilize a path planning module to establish a sequence of path segments for a planter, estimate potential interference between path segments, and determine exclusion zones to prevent planting in areas where interference is likely, using sensors and electronic data processing to execute a path plan and exclusion zones based on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the implement follows a sequence of path segments to cover the field, then the coverage area is maximized, but path interference occurs between earlier and later path segments reducing crop yields
Solution Approach 1:
The system performs preliminary path planning that anticipates future path segments and identifies potential interference zones before planting occurs. By calculating exclusion zones in advance based on the vehicle's turning radius and path geometry, the system prevents harmful interference before it can affect planted seeds, rather than reacting after damage occurs.
Solution Approach 2:
The path interference estimator acts as an intermediary between the path planning module and the planting control system. It calculates potential interference between path segments and generates exclusion zone information that mediates between the need for complete field coverage and the need to avoid damaging previously planted seeds.
2Object-affected harmful factors
If buffer zones are left unplanted around the field to reduce path interference, then seed damage is reduced, but crop yield is penalized due to lost planting area
Solution Approach 1:
Instead of creating a uniform unplanted buffer zone around the entire field, the system applies local quality by determining exclusion zones only where path interference actually occurs. This allows planting in areas that would traditionally be left as buffer zones if no interference is predicted, thereby maximizing yield while still protecting seeds from damage in critical interference areas.
Solution Approach 2:
The system dynamically adjusts the exclusion zone parameters based on the specific path geometry, vehicle dimensions, and planting conditions. Rather than using a fixed buffer zone width, the exclusion zone size and position are calculated to match the actual interference risk, allowing maximum planting area while maintaining seed protection.
3Extent of automation
If traditional automatic guidance systems are used to track path plans, then planting automation is achieved, but interference between path segments is not detected or prevented
Solution Approach 1:
The system incorporates feedback by having the path interference estimator continuously evaluate the planned path segments against previously planted areas. This feedback loop provides information about potential interference that feeds back to the path planning and control systems, enabling automated adjustment of planting operations to prevent interference while maintaining high automation levels.
Data Source
AI summary
A path planning module or electronic data processor is configured to establish a path plan for a planter to cover a first area of the field at least once with a sequence of path segments that are generally parallel to each other and spaced apart. A path interference estimator or the electronic data processor is configured to estimate potential interference between two or more path segments with respect to a first path segment and a second path segment. An exclusion zone module or the electronic data processor is configured to determine an exclusion zone for the planter to prohibit planting of one or more rows of seeds or seedlings within the exclusion zone based on the estimated potential interference. The electronic data processor is configured to activate or execute the path plan and determined exclusion zone in accordance with the established path plan and determined exclusion zone.