Combine Harvester Crop Spreading Control System
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Solution Overview
Problem
Existing combine harvester systems are limited in their ability to detect and account for complex interrelationships between diverse parameters influencing crop spreading homogeneity, often relying on single parameter evaluations or limited analysis of crop and machine parameters.
Innovation Solution
A driver assistance system that processes information from internal and external sensors, and stored data to select and implement spreading strategies that consider multiple parameters, including mass, area percentage, travel speed, wind conditions, slope, and straw moisture, to optimize crop distribution and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single parameter evaluation or limited analysis of crop and machine parameters is used, then device complexity is reduced, but manufacturing precision (spreading homogeneity) deteriorates
Solution Approach 1:
The driver assistance system segments the monitoring and control functions into multiple independent sensor modules, each measuring specific parameters (crop flow structure, throughput, wind conditions, slope, travel speed). This segmentation allows comprehensive multi-parameter analysis without creating a monolithic complex system, as each sensor module can be independently optimized and maintained.
Solution Approach 2:
The computing unit serves multiple functions: it processes data from various sensors, determines crop flow structure, calculates throughput, identifies wind conditions, detects slope, and controls the spreading device. This multi-functionality consolidates what would otherwise require separate dedicated systems, reducing overall device complexity while maintaining comprehensive control for homogeneous crop spreading.
2Manufacturing precision
If multiple parameters are considered for optimizing crop spreading, then spreading homogeneity is improved, but device complexity increases
Solution Approach 1:
The patent merges the evaluation of multiple parameters (crop flow structure, throughput, wind conditions, slope, travel speed) into a single integrated driver assistance system. The computing unit combines all these parameter evaluations to control the spreading device, achieving homogeneous crop spreading through unified multi-parameter optimization rather than separate single-parameter control systems.
Solution Approach 2:
The system implements continuous feedback by monitoring multiple parameters in real-time and dynamically adjusting the spreading device based on the综合分析 of these parameters. The computing unit receives ongoing data from sensors, evaluates the current spreading effectiveness, and makes real-time corrections to maintain homogeneity, creating a closed-loop control system that adapts to changing conditions.
3Manufacturing precision
If dynamic adjustment of discharge direction and speed is implemented, then crop distribution homogeneity is improved, but use of energy increases
Solution Approach 1:
The spreading device is designed with dynamic capabilities, allowing real-time adjustment of discharge direction and speed based on evaluated parameters. The system dynamically adapts the spreading operation to match varying crop flow conditions, wind conditions, and terrain slope, achieving homogeneous distribution without requiring excessive energy by optimizing the discharge parameters moment-by-moment rather than operating at maximum capacity continuously.
Data Source
AI summary
A combine harvester which regulates spreading of crop flow on the ground, with the crop flow passing through a shredding and/or a spreading device in the rear region of the combine harvester, is disclosed. The combine harvester includes a driver assistance system, which includes a computing unit and a display unit. The computing unit processes information generated by the machine's internal sensor systems, external information and information storable in the computing unit. The driver assistance system stores selectable spreading strategies to regulate the spreading of the crop flow exiting the combine harvester and one or more of the partial strategies assigned to the respective spreading strategy. The driver assistance system uses the selectable spreading strategies and the partial strategies in order to regulate the crop flow spread on the ground.