Autonomous Grain Cart Dispatch for Continuous Harvesting
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Solution Overview
Problem
Harvesters experience downtime due to limited storage capacity and inefficient dispatching of grain carts, leading to interrupted harvesting operations, particularly in cases where human operators make suboptimal decisions or systems fail to provide timely grain cart dispatch based on estimated harvester locations.
Innovation Solution
A control system orchestrates the dispatch and queuing of grain carts using availability indexes to minimize harvester downtime by ensuring timely replacement of full carts with available carts that have optimal transit and fill characteristics, implementing autonomous direction and cascaded cluster instructions to enhance operational continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If human operators manually dispatch grain carts based on radio communication, then operational flexibility is maintained, but harvester downtime increases due to suboptimal dispatch decisions
Solution Approach 1:
The system enables autonomous grain carts to self-manage their own dispatch decisions. Each cart independently monitors harvester bin fill levels via sensors and autonomously navigates to harvesters that need refilling, eliminating the need for human operator intervention while optimizing dispatch efficiency through real-time data-driven decisions
Solution Approach 2:
The system implements continuous feedback loops where sensors on harvesters monitor bin fill levels and transmit this data to autonomous grain carts. The carts receive real-time information about harvester needs, calculate optimal routes and arrival times, and adjust their dispatch decisions dynamically based on changing field conditions, ensuring minimal harvester downtime
2Duration of action of moving object
If grain carts are dispatched to estimated future harvester locations, then harvester movement continuity is maintained, but offloading timing is delayed causing harvester downtime
Solution Approach 1:
Autonomous grain carts perform preliminary actions by positioning themselves at precise offloading locations ahead of time based on real-time harvester location data and predicted fill rates. The system calculates optimal arrival times and adjusts cart speeds to ensure they are ready for immediate offloading when harvesters arrive, eliminating waiting time while maintaining operational continuity
Solution Approach 2:
The system replaces manual estimation of harvester locations and timing with automated sensor-based tracking and computational algorithms. GPS sensors, communication modules, and processing units work together to calculate precise arrival times and positions, substituting human judgment with data-driven automation that achieves superior timing accuracy
3Ease of manufacture
If harvester bin storage capacity is increased to reduce dispatch frequency, then dispatch operations are simplified, but harvester size and mobility are compromised
Solution Approach 1:
The system segments the grain storage function by separating the harvester bin from the grain cart. Instead of increasing harvester bin capacity, the system uses multiple smaller grain carts that collectively provide the necessary storage capacity. This segmentation allows harvesters to maintain their compact, mobile design while the distributed cart fleet handles the bulk storage and transport functions
Data Source
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AI summary
A system and methods for filling a plurality of grain carts with a grain spout off of a harvester. In an example, the method includes directing a first grain cart to follow the harvester at an offloading position with respect to the harvester. In another example, the method includes directing a second grain cart to follow the harvester or the first grain cart. Directing the second grain cart includes establishing a first waypoint with a position sensor of the first grain cart or the harvester. Directing the second grain cart includes establishing a second waypoint with the position sensor of the first grain cart or the harvester; In yet another example, the method includes autonomously moving the second grain cart to the first waypoint. In still yet another example, the method includes autonomously moving the second grain cart from the first waypoint to the second waypoint.