Seed Furrow Liquid Applicator with Sensor-Controlled Valve
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Solution Overview
Problem
Current crop input applicators face challenges in precisely and efficiently applying liquids and fertilizers to seed furrows during planting, as they lack advanced control systems for real-time agronomic measurements and adaptive application techniques.
Innovation Solution
The integration of a control system with a valve and sensors that use agronomic measurements to adjust liquid application rates and placement relative to seeds, utilizing a controller to communicate with sensors and actuators for precise fluid management and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional crop input applicators are used without advanced control systems, then the device complexity is reduced, but the manufacturing precision and application accuracy of liquid placement relative to seeds deteriorates
Solution Approach 1:
The applicator system is divided into modular components including seed sensors, liquid applicators, and control systems that can independently detect and actuate. Each row unit can be equipped with its own control system, allowing segmented implementation rather than requiring complete system replacement.
Solution Approach 2:
Traditional mechanical timing mechanisms for liquid application are replaced with electronic sensors and computer-controlled valve systems. Seed sensors detect seed passage and trigger liquid application electronically, replacing mechanical synchronization systems with more precise electronic control.
2Loss of substance
If liquid application is applied continuously without adaptive control, then the productivity is maintained, but the loss of substance increases due to inefficient placement
Solution Approach 1:
Liquid application occurs in periodic pulses synchronized with seed passage rather than continuous flow. The control system activates liquid applicators only during brief intervals when seeds are detected in the furrow, creating periodic application cycles that reduce waste while maintaining effectiveness.
Solution Approach 2:
Seed sensors provide real-time feedback about seed passage to the control system, which then adjusts liquid application rates and timing accordingly. This closed-loop feedback mechanism ensures liquid is applied only when needed, reducing substance loss while adapting to varying planting conditions.
3Measurement precision
If real-time agronomic measurements and adaptive control systems are integrated, then the measurement precision and application accuracy improve, but the device complexity and initial cost increase
Solution Approach 1:
The control system is designed to perform multiple functions including seed detection, liquid application control, flow rate regulation, and data logging within a single integrated platform. This multi-functionality reduces the need for separate specialized devices while maintaining measurement precision.
Solution Approach 2:
The system allows dynamic adjustment of liquid application parameters such as flow rate, pressure, and timing based on real-time sensor measurements. By changing operational parameters adaptively rather than using fixed settings, the system achieves high measurement precision without requiring overly complex hardware.
Data Source
AI summary
In one aspect, a crop input applicator is provided. In one aspect, the applicator comprises a valve (e.g., voice coil valve) disposed to deposit liquid on or near a seed furrow and/or on or near a seed. In one aspect, the applicator includes one or more seed sensors disposed to detect passage of seeds.