Granular Material Distribution Control for Seed Singulation
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Solution Overview
Problem
Existing agricultural spreading machines face issues with uniform supply of granular material to separating devices, leading to potential overflow or depletion of buffer storage, which affects seed placement quality and increases seed requirements.
Innovation Solution
A method that uses operating parameters, such as power consumption and buffer quantity, to adjust the generation of individual air flows, ensuring consistent supply to separating devices, with a control system adapting airflow based on real-time conditions to maintain optimal buffer levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a buffer storage area is equipped in each singulation unit to ensure sufficient granular material supply, then the seed placement quality should be maintained, but the buffer reservoirs can either overflow or run dry, significantly impairing the seed placement quality
Solution Approach 1:
The patent implements a feedback control system that continuously monitors the fill level of buffer storage areas in singulation units and adjusts the distribution of granular material accordingly. Sensors detect buffer levels and transmit this information to a control unit, which then modulates the airflow and granular material distribution to maintain optimal buffer levels, preventing both overflow and depletion conditions.
Solution Approach 2:
The system dynamically adjusts the distribution of granular material to individual singulation units based on real-time buffer fill levels. The control system varies the airflow parameters and granular material flow rates adaptively, allowing the system to respond to changing operational conditions and maintain consistent seed placement quality throughout the spreading process.
2Productivity
If the distribution system supplies granular material to multiple singulation units simultaneously, then the overall productivity is improved, but the uniform distribution of granular material cannot be guaranteed, leading to operational fluctuations
Solution Approach 1:
The patent divides the granular material distribution system into multiple independent airflow channels, with each channel serving a specific singulation unit. This segmentation allows individual control of granular material flow to each unit, ensuring uniform distribution while maintaining high overall productivity. Each airflow channel can be independently adjusted based on the specific needs of its assigned singulation unit.
Solution Approach 2:
The system applies local quality control by adjusting the granular material distribution parameters for each individual singulation unit based on its specific operational state and buffer fill level. The control system tailors the airflow and material flow characteristics to each local requirement, ensuring optimal and uniform distribution across all units simultaneously.
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
This approach ensures stable and uniform seed distribution, preventing buffer overflows or depletions, thereby improving seed placement quality and reducing seed requirements.
Implementation Method 1
several individual air streams loaded with granular material are initially generated
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
The invention relates to a method for separating granular material (100), in particular seeds, comprising the steps of: generating several individual air streams (104) loaded with granular material by means of a distribution system (22) of an agricultural spreading machine (10), separating the grains of the granular material of the individual air streams with each of a, in particular electrically driven, singulation device (36) of the agricultural spreading machine and controlling the distribution system depending on at least one operating parameter of the respective singulation devices.