Adaptive Deck Plate Opening Control for Grain Loss Balance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Agricultural harvesters face challenges in controlling grain loss and intake of non-grain material, particularly with headers that struggle to manage the gap between deck plates effectively.
Innovation Solution
A control system that adjusts the gap between deck plates based on crop material conditions, including stalk diameter, verticality, and non-grain material desirability, using sensors and actuators to optimize the spacing dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the gap between deck plates is fixed, then the device complexity is reduced, but the adaptability to different crop conditions deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of the deck plate gap through an actuator system controlled by a control algorithm. The gap distance is continuously modified based on real-time crop conditions (stalk diameter, moisture content, variety) detected by sensors, transforming a static structure into a dynamic adaptive system that optimizes harvesting performance across varying crop parameters
Solution Approach 2:
The system employs feedback control where sensors continuously measure crop parameters and feed this information to a controller that adjusts the deck plate gap accordingly. This closed-loop feedback mechanism enables the system to adapt to changing crop conditions by comparing actual measurements with target values and making real-time adjustments to maintain optimal harvesting conditions
2Loss of substance
If the deck plate gap is widened to reduce grain loss, then grain loss is reduced, but the intake of non-grain material increases
Solution Approach 1:
The system dynamically changes the physical parameter of gap distance based on crop conditions. By adjusting this critical parameter in real-time, the system optimizes the balance between preventing grain loss (which requires larger gaps) and controlling non-grain material intake (which requires smaller gaps), allowing both objectives to be satisfied under different operating conditions
Solution Approach 2:
Rather than using a fixed gap setting, the patent implements dynamic adjustment of the gap distance through actuators controlled by a feedback algorithm. This dynamic approach allows the system to respond to varying crop conditions, adjusting the gap to minimize grain loss while controlling non-grain material intake based on real-time measurements of stalk diameter, moisture, and other parameters
3Productivity
If manual adjustment of deck plate gap is used, then the device complexity is minimized, but the productivity and precision of harvesting optimization deteriorates
Solution Approach 1:
The system implements self-service automation where the deck plate gap adjustment is performed automatically based on sensor readings and control algorithms, eliminating the need for continuous manual intervention. The system autonomously monitors crop conditions and adjusts parameters to optimize harvesting performance, significantly improving productivity while reducing operational complexity
Solution Approach 2:
The patent replaces manual mechanical adjustment with an automated control system that uses sensors, processors, and actuators. This substitution of manual operation with an electronic control system enables precise, real-time optimization of deck plate gap based on actual crop conditions, dramatically improving harvesting efficiency and precision
Data Source
AI summary
An agricultural harvester includes: a harvester frame; an agricultural header coupled with the harvester frame, the agricultural header including a plurality of deck plates; and a control system operatively coupled with the harvester frame and the agricultural header, the control system including: at least one sensor coupled with the agricultural header and configured for: detecting a crop material condition associated with a harvesting operation, the crop material condition being a crop material diameter; outputting a crop material condition signal corresponding to the crop material condition; a controller operatively coupled with the at least one sensor and configured for: receiving the crop material condition signal; determining an operative parameter of the plurality of deck plates based at least in part on the crop material condition signal and at least one offset condition signal.