Non-contact Sensor System for Agricultural Header Reel Positioning
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Solution Overview
Problem
The existing agricultural header systems face inefficiencies due to interference between the cutter bar assembly and the reel, which can limit the effectiveness of crop cutting and transport, as the reel's position relative to the cutter bar assembly is not adequately monitored or adjusted.
Innovation Solution
A non-contact sensor system is implemented, comprising detectable elements and sensors that generate feedback on the distance between the reel and the cutter bar assembly, allowing a controller to adjust the reel's position to prevent interference, using actuators to move the reel away from the cutter bar assembly when it is in an undesirable position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the reel is positioned close to the cutter bar assembly to improve crop engagement, then crop cutting effectiveness is improved, but interference between the reel and cutter bar assembly occurs
Solution Approach 1:
The reel position is made dynamically adjustable through actuators that can move the reel between multiple positions. The control system continuously monitors the distance between the reel and cutter bar assembly using sensors, and automatically adjusts the reel position to maintain optimal spacing and prevent interference while maximizing crop engagement effectiveness.
Solution Approach 2:
A sensor system continuously measures the distance between the reel and cutter bar assembly, providing real-time feedback to the control system. This feedback enables the control system to detect potential interference conditions and automatically adjust the reel position to prevent harmful interactions while maintaining optimal operational parameters.
2Productivity
If manual monitoring and adjustment of reel position is used, then system complexity is reduced, but operational efficiency decreases due to lack of real-time adjustment
Solution Approach 1:
The system performs self-monitoring and self-adjustment of the reel position. Sensors automatically detect the distance between the reel and cutter bar assembly, the control system processes this information, and actuators automatically adjust the reel position without requiring manual intervention. This autonomous operation maximizes operational efficiency while the integration of components keeps complexity manageable.
Solution Approach 2:
Manual mechanical monitoring and adjustment is replaced with an automated system using sensors, electronic control, and actuator mechanisms. This substitution enables continuous real-time adjustment of reel position, significantly improving operational efficiency despite the increased complexity of the automated control system.
Data Source
AI summary
A sensor system (230) for an agricultural machine includes one or more first elements (232) configured to be supported by a reel member (220) that is configured to rotate relative to a frame (201) of the agricultural machine. The sensor system (230) also includes one or more second elements (231) configured to be supported by the frame (201) of the agricultural machine, wherein the one or more first elements (232) and the one or more second elements (231) are configured to interact to generate sensor feedback. The sensor system also includes a controller (290) configured to receive the sensor feedback, analyze the sensor feedback to identify occurrences of the reel member (220) being in an undesirable position relative to the frame (201) of the agricultural machine, and provide an output in response to the reel member (220) being in the undesirable position relative to the frame (201) of the agricultural machine.