Controlled Sowing Trajectories for Precise Headland And Turn Marking
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Solution Overview
Problem
Existing agricultural machinery struggles to accurately mark non-straight trajectories and maneuvers, leading to soil compaction and seed waste due to non-reproducible trajectories and lack of automation in tractor driver assistance systems, especially during U-turns and other complex maneuvers.
Innovation Solution
A method and system for controlled sowing that involves creating a virtual plot plan with straight and non-straight trajectories, using a seeding vehicle or hitch with individual seeding elements that can be selectively blocked or retracted to avoid crushing crops, and incorporating real-time trajectory adjustments for subsequent operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional marking methods are used for non-straight trajectories, then the marking process becomes simpler, but the trajectory reproducibility deteriorates and seed waste increases
Solution Approach 1:
The system pre-defines standard maneuver trajectories (U-turns, turns, headland operations) with precise geometric parameters before field operations begin. These predefined trajectories are stored in the control system and automatically executed, ensuring consistent reproduction across multiple passes without requiring complex real-time measurement or manual marking.
2Extent of automation
If autopilot systems are used for straight sections, then the automation level increases, but the ability to handle complex maneuvers deteriorates
Solution Approach 1:
The control system integrates multiple functions into a single automated platform that handles both straight-line guidance and complex maneuvers (U-turns, turns, headland operations). The system universally manages all trajectory types through a unified control architecture, eliminating the need for separate manual intervention for different operation types.
Solution Approach 2:
Complex maneuver trajectories are pre-programmed with specific geometric parameters (radius, length, position relative to field boundaries). The system automatically executes these predefined maneuver patterns, providing the same level of automation for complex maneuvers as for straight sections.
3Productivity
If seed drilling width is reduced to optimize field coverage, then the productivity increases, but the number of maneuvers increases and soil compaction worsens
Solution Approach 1:
The system pre-calculates and pre-marks all maneuver sections (U-turns, turns, headland operations) before seed drilling begins. This allows the seed drill to be precisely stopped before entering these marked zones, preventing seed deposition in areas that will subsequently be compacted by maneuvering traffic.
Solution Approach 2:
The system extracts and separates maneuver sections from the productive field areas by marking them in advance. This extraction allows the seeding operation to focus only on productive zones, while maneuver zones are identified and avoided during seed deposition, eliminating unnecessary seed waste from compacted areas.
4Device complexity
If manual marking of maneuver sections is attempted, then the equipment complexity is reduced, but the marking precision deteriorates
Solution Approach 1:
The system replaces manual mechanical marking operations with an automated electronic control system that uses GPS/positioning data and pre-programmed trajectory parameters to automatically mark maneuver sections. This substitution of mechanical manual operations with electronic automation achieves high marking precision without proportionally increasing physical system complexity.
Data Source
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AI summary
The present invention relates to a method for the controlled seeding of a parcel (1) of agricultural land by way of a seeding vehicle (2) having a plurality of individual seeding members (3) each able and intended to produce a seeding line (4) and being able to interrupt at least one seeding line (4) so as to mark out said parcel (1). This method consists in providing, in advance, a virtual plan of the parcel with the current portions (4') of the arrangements of seeding lines to be realized, in inferring therefrom the trajectories of the seeding vehicle (2) and in controlling the latter to carry out controlled seeding with marking out for these current portions (4') and also for the particular trajectories (7, 8) at least during cornering, during half-turns or between the current portions, depending on the trajectories of the rolling members of the vehicle(s) or trailer(s) carrying out the subsequent operation(s) on these current portions.