Agricultural Harvester Grain Loss Detection With Automatic Setting Adjustment
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Solution Overview
Problem
Agricultural machines require multiple user inputs for adjusting settings to optimize harvesting operations, leading to inefficiencies and potential grain loss or quality issues.
Innovation Solution
An agricultural machine equipped with sensors to detect grain loss and quality, using a control system to compare detected values against predefined thresholds and automatically adjust settings such as rotor speed, threshing clearance, fan speed, and sieve clearance to minimize grain loss and improve quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple user inputs are required to adjust machine settings, then precise control over harvesting functions is achieved, but operator workload and complexity increase
Solution Approach 1:
The system automatically monitors grain loss and quality parameters using sensors, then self-adjusts machine settings (rotor speed, threshing clearance, fan speed, sieve clearance) without requiring operator intervention. This transforms a manual control system into an autonomous one that serves itself, reducing operator workload while maintaining precise control.
Solution Approach 2:
The system implements continuous feedback loops where sensors detect grain loss and quality metrics, the controller processes this data against target thresholds, and automatically adjusts machine settings in response. This closed-loop feedback mechanism enables precise control while eliminating the need for multiple manual user inputs.
2Reliability
If multiple user inputs are required to adjust machine settings, then optimal harvesting performance is achieved, but time consumption and efficiency decrease
Solution Approach 1:
The system pre-configures target thresholds for grain loss and quality parameters before harvesting begins. During operation, it automatically compares sensor readings against these pre-set criteria and makes real-time adjustments without waiting for operator input, thereby maintaining optimal performance while accelerating the adjustment process.
Solution Approach 2:
The automated control system performs all monitoring and adjustment functions independently, eliminating the time operators would spend manually adjusting settings. This self-service capability maintains optimal harvesting performance while significantly improving operational efficiency by removing human response delays.
3Adaptability or versatility
If manual adjustment of machine settings is used, then flexibility in responding to varying field conditions is achieved, but grain loss and quality issues increase
Solution Approach 1:
The system continuously monitors actual grain loss and quality outcomes using sensors positioned to detect material flow and grain characteristics. This real-time feedback enables the controller to identify deviations from optimal performance and automatically adjust machine settings to correct these issues, reducing grain loss while maintaining adaptability to field conditions.
Solution Approach 2:
The system replaces manual mechanical adjustment with automated electronic control. Sensors detect grain loss and quality parameters, the controller processes this information, and actuators automatically adjust machine settings (rotor speed, threshing clearance, fan speed, sieve clearance). This substitution eliminates human reaction time delays and improves responsiveness, reducing grain loss while maintaining flexibility.
Data Source
AI summary
An agricultural machine includes a chassis and a header coupled to the chassis. The header is configured to harvest crop in a field. A grain tank is coupled to the agricultural machine and configured to collect grain from the harvested crop. A separating section of the agricultural machine is configured to separate grain from the harvested crop. A cleaning shoe of the agricultural machine is configured to clean grain from the separating section and move clean grain towards the grain tank, wherein the separating section and cleaning shoe are positioned between the header and the grain tank. The agricultural machine further includes a plurality of sensors configured to detect one or more of grain loss from the agricultural machine or grain quality; and includes three user inputs setting threshold values for grain loss and grain quality.