Row Unit Position Control for Uneven Terrain Spacing
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Solution Overview
Problem
Agricultural planters face issues when traveling over uneven ground, leading to undesirable spacing between rows due to varying inclines, which can stunt plant growth and result in unharvestable crops, as the ground engaging tools and row units may contact each other or be too close, affecting seed placement and fertilizer distribution.
Innovation Solution
A row unit position control system that includes sensors and controllers to detect angles between toolbar sections, adjusting the position of ground engaging tools and row units to maintain a desired distance between rows and prevent contact, using actuators to lift units when the distance between them becomes too small, ensuring optimal spacing and preventing contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the planter travels over uneven ground with varying inclines, then the planter can adapt to different terrain conditions, but the row spacing becomes inconsistent and ground engaging tools may contact each other
Solution Approach 1:
The system dynamically adjusts the position of ground engaging tools and row units based on real-time terrain conditions detected by sensors. The controller continuously monitors the angle between toolbar sections and actuates cylinders to maintain proper row spacing, transforming a static system into a dynamic one that adapts to changing terrain while preserving spacing precision
Solution Approach 2:
The system employs sensors to detect the angle between toolbar sections and provides feedback to the controller. Based on this feedback, the controller determines when to actuate cylinders to adjust tool positions, creating a closed-loop control system that maintains row spacing precision while adapting to uneven ground conditions
2Reliability
If ground engaging tools are lowered to maintain contact with the ground for stable planting, then planting stability is improved, but tools may contact each other on uneven terrain causing damage
Solution Approach 1:
The system takes preliminary action by detecting terrain conditions before tool contact occurs. The sensors monitor the angle between toolbar sections and predict potential tool contact, allowing the controller to pre-adjust tool positions by actuating cylinders to prevent harmful contact before it happens
Solution Approach 2:
The system dynamically adjusts tool positions based on real-time terrain conditions. When sensors detect that the angle between toolbar sections indicates potential tool contact, the controller actuates cylinders to raise or lower specific tools, maintaining planting stability while preventing harmful contact on uneven terrain
Data Source
AI summary
An agricultural implement system that includes a first toolbar section, a first row unit coupled to the first toolbar section, a second toolbar section, a second row unit coupled to the second toolbar section, and a row unit position control system. The system includes a sensor that detects an angle of the second toolbar section with respect to the first toolbar section. A controller couples to the sensor. The controller raises the first row unit and/or the second row unit in response to the angle to block contact of the first row unit and/or the second row unit with the ground.