Singulator Feed Rate Control for Even Granule Distribution
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Solution Overview
Problem
Current sowing machines lack precision in distributing seed and granular materials, leading to suboptimal yield due to uneven distribution and density, and existing solutions are either costly, complex, or not easily integratable with existing designs.
Innovation Solution
A method of controlling a singulator in agricultural implements by receiving a granule feed-out rate target value and individually controlling the feed-out rate of each singulator based on desired density, travel speed, and singulator-specific parameters, allowing for precise distribution of granules through a primary distributor and multiple singulators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a central primary distributor is used to control granule feed-out rate, then device complexity is reduced, but manufacturing precision of granule distribution deteriorates
Solution Approach 1:
The distributor system is segmented into a central primary distributor and multiple individual singulators, each capable of independent granule feed-out rate control. This segmentation allows localized precision control at each singulator while maintaining the overall simplicity of the central distribution structure.
Solution Approach 2:
Each singulator is equipped with individual control capabilities to adjust granule feed-out rates according to local requirements. This local quality approach ensures that each position in the distribution system can be optimized independently, improving overall distribution evenness without requiring complete system redesign.
2Manufacturing precision
If individual singulator control is implemented, then manufacturing precision of granule distribution is improved, but device complexity increases
Solution Approach 1:
The control system uses universal control units that can be applied to multiple singulators with the same or different granulating devices. This multi-functionality allows individual control of each singulator while using standardized control components, thereby reducing overall system complexity.
Solution Approach 2:
The control system adjusts operational parameters (granule feed-out rates) of individual singulators based on detected distribution patterns. By changing these parameters dynamically, the system achieves precise control without requiring complex mechanical modifications to each singulator.
3Productivity
If precision in seed feeding is improved, then productivity of sowing operation is enhanced, but cost of equipment increases
Solution Approach 1:
The system incorporates detection means that automatically monitor granule distribution patterns and feed this information back to the control units. This self-service capability allows the system to automatically optimize sowing precision without requiring expensive manual intervention or complex external control systems.
Solution Approach 2:
Detection means provide real-time feedback on granule distribution, which is used by control units to adjust feed-out rates of individual singulators. This feedback mechanism enables continuous optimization of sowing precision at a relatively low cost by using simple sensors and control algorithms rather than expensive precision mechanisms.
Data Source
Figure 1a~1b
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AI summary
The present document shows a method of controlling a feed device in an agricultural implement, for feeding granules from a primary distributor (5) to at least two singulators (1), each comprising a granule buffer space (14) and a granule outlet (12). The method comprises receiving a granule feed-out rate target value, controlling a granule feed-out rate of the primary distributor (5) on the basis of the granule feed-out rate target value, and individually controlling a granule feed-out rate of each of the singulators (1) on the basis of the granule feed-out rate target value. The application also comprises an agricultural implement.