Corn Head Cross-Track Error System Using Resilient Member Deflection
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Solution Overview
Problem
Existing agricultural harvesting systems face challenges in accurately aligning the stripper plate gap with incoming plant rows, leading to cross-track errors that result in inefficient harvesting and lost crop yield, particularly on curved rows where prior systems misalign the snoot front, causing stalks to be pushed to the edges or fall over.
Innovation Solution
A cross-track error system featuring resilient members disposed proximal to the stripper plate gap on a corn head, equipped with sensors to measure deflection and communicate with an automated steering system, ensuring precise alignment of the stripper plate gap with incoming rows by detecting and correcting cross-track errors in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional harvesting systems are used without resilient members and deflection sensors, then the system structure remains simple, but cross-track error alignment precision deteriorates causing stalks to be pushed to edges or fall over
Solution Approach 1:
Resilient members are introduced as intermediary elements between the stripper plates and the stalks. These members deflect in response to stalk contact, providing a mechanical mediation that translates positional information into measurable deflection signals without requiring complex sensing infrastructure
Solution Approach 2:
The patent replaces complex mechanical alignment systems with a sensor-based detection system. Instead of using complex mechanical linkages to maintain alignment, the system uses deflection sensors to detect cross-track errors and provides feedback for correction, substituting mechanical complexity with sensing and control
2Adaptability or versatility
If the stripper plate gap is fixed without adjustment capability, then the device complexity is reduced, but the adaptability to different row positions deteriorates leading to cross-track errors on curved rows
Solution Approach 1:
The stripper plate gap is transformed from a fixed static structure to a dynamic adjustable structure. The gap can now be modified in response to detected cross-track errors, allowing the system to adapt to varying row positions while maintaining a relatively simple overall device architecture through feedback-controlled adjustment
3Productivity
If cross-track error is not detected and corrected in real-time, then the system operation remains simple, but crop yield is reduced due to inefficient harvesting and lost stalks
Solution Approach 1:
A feedback loop is established where deflection sensors continuously monitor resilient member deflection, detect cross-track errors, and provide signals for real-time correction. This feedback mechanism enables automatic adjustment to maintain optimal alignment without requiring complex manual operation, thereby improving harvesting efficiency while preserving ease of operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces cross-track errors by accurately aligning the stripper plate gap with incoming rows, enhancing crop yield and reducing losses by ensuring stalks pass through vertically, maintaining efficient harvesting on both straight and curved rows.
Implementation Method 1
a sensor in communication with the at least one resilient member, where the sensor is constructed and arranged to measure deflection of the at least one resilient member as a stalk passes through the row unit
Data Source
AI summary
The disclosed apparatus, systems and methods relate to devices, systems and methods for reducing cross-track error in harvesting row crops such as corn. A cross track error system including a corn head, a row unit disposed on the corn head. The row unit including a set of stripper plates, a resilient member disposed proximal to the stripper plates, a sensor unit in communication with the resilient member, and a processor. The processor is constructed and arranged to process signals generated by the sensor unit in response to deflection of the resilient member.