Seed Meter Cylinder Segmentation for Rapid Variety Switching
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Solution Overview
Problem
Current seed meters in automated planting systems are inefficient in switching between different seed types, requiring slow planting rates to ensure accurate placement, leading to significant delays and increased operating costs in research settings where multiple seed types are tested.
Innovation Solution
A seed meter with a cylinder and seed separator system that incrementally rotates seed chambers to load, plant, and evacuate seeds simultaneously, using a vacuum to parse and transport seeds through seed apertures on a rotating disc, allowing for rapid switching between seed types without slowing down the planting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If current seed meters are used to ensure highly-accurate placement of multiple seed types, then seed placement accuracy is improved, but planting speed deteriorates due to slow seed switching
Solution Approach 1:
The seed meter is divided into multiple seed chambers (at least three chambers) that can be independently filled with different seed types. Each chamber operates independently to plant different seed types simultaneously or sequentially, eliminating the need to slow down for seed switching. This segmentation allows the planter to maintain high speed while accurately placing multiple seed types.
Solution Approach 2:
The system enables continuous planting operation by having multiple seed chambers that can be pre-filled with different seed types. While one chamber is planting, another can be switched or evacuated without interrupting the planting process. This continuity eliminates idle time and maintains constant planting speed across plot transitions.
2Reliability
If planting rate is reduced to accommodate seed switching inefficiency, then seed type separation accuracy is improved, but productivity deteriorates
Solution Approach 1:
Multiple seed chambers are segmented and can be independently controlled, allowing each chamber to handle a specific seed type. This independent control ensures that seed type separation remains accurate while the system as a whole maintains high productivity through parallel operation of multiple chambers.
Solution Approach 2:
Seed chambers can be pre-filled with different seed types before entering the field. This preliminary action allows the system to be ready for multiple seed types simultaneously, eliminating the need to slow down during field operation for seed switching, thus maintaining both accuracy and productivity.
3Adaptability or versatility
If multiple seed types are planted in separated plots with current meters, then research testing capability is improved, but time consumption deteriorates due to frequent seed switching
Solution Approach 1:
The seed meter is segmented into multiple chambers that can be independently filled with different seed types, allowing researchers to test multiple seed types simultaneously across different plots. This eliminates the sequential switching process and dramatically reduces time consumption while maintaining full research testing capability.
Solution Approach 2:
The seed meter system becomes multi-functional by incorporating multiple seed chambers that can handle different seed types. This universal design allows the same planter to efficiently conduct research testing for numerous seed types without requiring multiple separate planting passes or frequent stops for seed switching.
4Manufacturing precision
If planters operate at reduced planting rate to accommodate seed switching, then seed placement accuracy is improved, but operating costs increase
Solution Approach 1:
By segmenting the seed meter into multiple independently operable chambers, the system maintains accurate seed placement for each seed type while operating at full speed. This eliminates the need to reduce planting rate, thereby avoiding increased operating costs associated with prolonged field operation time.
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
Enables efficient and rapid switching between seed types, reducing planting time and operating costs, and improving the overall efficiency of seed planting in research settings by allowing for higher throughput without compromising accuracy.
Implementation Method 1
via a vacuum supplied at each seed aperture, to parse the particular numbers of seed from each seed chamber and transport the seeds to the exit chute
Data Source
AI summary
A seed meter comprising a seed handler comprising a cylinder comprising a plurality of seed chambers. The seed handler rotates the cylinder to sequentially position each seed chamber in a ‘loading’ position wherein each seed chamber receives a sets of seeds, a ‘planting’ position wherein seeds from each seed set are parsed, and an ‘evacuation’ position wherein any seeds remaining in each chamber are evacuated from each chamber. The seed meter additionally comprises a seed separator comprising a seed disc. The seed disc rotates, parses seed from each seed chamber, and transports the seeds to the exit chute. Importantly, the seed meter is structured and operable to substantially simultaneously, receive the sets of seed in the respective chamber positioned in the ‘loading’ position, parse the seeds from the respective chamber positioned in the ‘planting’ position, and evacuate the remaining seed from the respective chamber positioned in the ‘evacuation’ position.