Fertilizer Spreader Mixing Ratio Control via Image Analysis
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Solution Overview
Problem
During the spreading process of mixed fertilizers using centrifugal spreaders, the mixing ratio of nutrient components changes due to acceleration, leading to segregation of the originally homogeneous mixture, resulting in an uneven distribution of nutrients.
Innovation Solution
An image evaluation method using a computing unit and a sensor system or camera, in conjunction with a mobile device and evaluation program, to determine the mixing ratio changes and adjust the fertilizer spreader settings for optimal distribution, with a smartphone APP for user-friendly operation, prioritizing nitrogen fertilizer component correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If centrifugal spreader is used for distributing mixed fertilizer, then spreading efficiency is improved, but mixing ratio changes due to segregation during the throwing process
Solution Approach 1:
The patent implements a feedback mechanism where cameras capture images of fertilizer distribution, computing units analyze the mixing ratio, and the system automatically adjusts spreader settings to maintain the desired mixing ratio despite segregation effects during spreading
Solution Approach 2:
The patent replaces manual mechanical measurement and adjustment methods with automated optical sensing (cameras), computational image analysis, and electronic control systems to monitor and maintain mixing ratio during centrifugal spreading
2Measurement precision
If image evaluation is carried out to determine mixing ratio changes, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent uses cameras to create optical copies (images) of the fertilizer distribution, which are then analyzed by computing units to determine mixing ratios, replacing direct physical measurement with indirect optical measurement
Solution Approach 2:
The patent introduces cameras and computing units as intermediary systems between the fertilizer spreading process and the measurement/analysis function, enabling precise mixing ratio determination without direct interference with the spreading 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
Enables precise determination of the mixing ratio changes and adjustment of the fertilizer spreader settings to maintain an optimal nutrient distribution, ensuring effective and uniform application of mixed fertilizers.
Implementation Method 1
at least one adhesive mat/plate 4, which is essentially transverse to the direction of travel 3a of the fertilizer spreader 3 is laid out on a field 5
Data Source
Figure 1
Figure 2
AI summary
Method and apparatus for determining the distribution of fertilizer granules (2) transversely to the direction of travel of a fertilizer spreader. In order to easily determine the degree of segregation or the degree of change of the originally homogeneous mixture of the compound fertilizer after spreading, it is provided that an image analysis of the sown soil area (5) is carried out to determine how the mixing ratio changes and/or has changed.