Disc Spreader Parameter Planning for Uniform Field Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing disc spreaders face challenges in achieving homogeneous material distribution and adhering to a predetermined target quantity per unit area, particularly in complex or irregular field geometries, including slopes and obstacles, where current online control and regulation methods are inadequate.
Innovation Solution
A method and device for determining setting parameters of a disc spreader that includes a control and regulating system, using a processing plan based on simulated three-dimensional scattering patterns, which adjusts mass flow rate, rotational speed, and application point of the distributor disc to achieve uniform distribution, considering field topology and material properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If online control and regulation methods are used to adjust metering units and distribution discs, then the disc spreader can adapt to different working widths and materials, but the method fails to achieve homogeneous material distribution in complex field geometries such as slopes and irregular shapes
Solution Approach 1:
The system performs preliminary determination of setting parameters along the entire predetermined travel path before material distribution begins. A processing plan is created in advance that includes optimal settings for each position, based on simulated three-dimensional scattering patterns. This preliminary action allows the system to prepare for complex field geometries before encountering them, ensuring homogeneous distribution from the start rather than attempting reactive adjustments during operation.
Solution Approach 2:
The system dynamically adjusts setting parameters (mass flow rate, rotational speed, application point) based on the disc spreader's position along the travel path. The control device regulates these parameters in real-time according to the predetermined processing plan, enabling the system to adapt to varying field conditions, slopes, and geometries while maintaining homogeneous material distribution throughout the entire field area.
2Productivity
If the disc spreader operates at high speed to increase productivity, then more area can be treated per unit time, but the accuracy of adhering to the predetermined target quantity of material per unit area decreases
Solution Approach 1:
The system incorporates feedback through sensors that detect the actual scattering pattern and material distribution. This information is fed back to the control device, which compares actual performance against the predetermined processing plan. Based on this feedback, the control device automatically adjusts setting parameters to compensate for speed variations, ensuring accurate adherence to the target quantity per unit area even when operating at high speeds.
Solution Approach 2:
The system changes operating parameters (mass flow rate, rotational speed, application point) dynamically based on the predetermined processing plan and actual field conditions. By adjusting these parameters in real-time according to position and detected scattering patterns, the system maintains precise control over material application accuracy regardless of travel speed, allowing high productivity without sacrificing precision.
3Adaptability or versatility
If complex online control algorithms are implemented to handle irregular field topologies and varying target quantities, then the system can adapt to different field geometries, but the device complexity and computational requirements increase significantly
Solution Approach 1:
The system performs complex computations in advance by simulating three-dimensional scattering patterns and determining optimal setting parameters for each position along the predetermined travel path before operation begins. This preliminary calculation creates a detailed processing plan that stores all necessary adjustment information. During actual operation, the system simply follows this pre-computed plan, significantly reducing real-time computational requirements and device complexity while maintaining the ability to handle irregular field geometries.
Data Source
AI summary
The disclosure relates to a method for determining the setting parameters of a disc spreader with a metering unit, a distribution disc, and a device for changing the rotational speed of the distribution disc and/or for adjusting the application point onto the distribution disc, which are connected to a control unit. A setting parameter from the group consisting of mass flow rate of the metered material, rotational speed, and application point is determined along a predetermined travel path of the disc spreader at a predetermined speed according to the target quantity of material being spread. The majority of the setting parameters determined along the travel path are stored in the form of a processing plan, which is then transmitted to the control unit.The control unit can transmit data to activate the processing plan during the distribution of the material in the field and to control or regulate the setting parameter at each position of the disc spreader according to the processing plan. Several three-dimensional spreading patterns are stored in a database for different values of the setting parameter. To determine the setting parameter, an optimal three-dimensional spreading pattern is simulated along the driving path from the spreading patterns stored in the database for different values of the setting parameter, and the setting parameter for the optimal spreading pattern is determined.