Crop Unloading Tube Positioning for Automated Harvester Unloading
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Solution Overview
Problem
Current systems for controlling the position of crop unloading tubes in agricultural harvesters rely on operator visual identification or complex image processing, which can be distracting and resource-intensive, and lack efficient automation for positioning the unloading tube relative to the crop receiving vehicle.
Innovation Solution
An agricultural harvester system equipped with sensors and actuators, where a computing system determines the presence of a crop receiving vehicle and automatically moves the crop unloading tube to a predetermined position based on vehicle characteristics, using transceiver-based sensors like RADAR or LIDAR, and actuators for rotation, elevation, and extension, to facilitate efficient unloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operator visual identification is used to control crop unloading tube position, then the system is simple to operate, but the operator becomes distracted and productivity decreases
Solution Approach 1:
The system enables self-service automation where the crop unloading tube automatically positions itself relative to the crop receiving vehicle using sensor data and actuator control, eliminating the need for continuous operator attention and visual monitoring during the unloading process
Solution Approach 2:
The manual visual identification and control system is replaced with an automated sensor-based detection and actuator-driven positioning system, substituting operator mechanical control with electronic sensing and actuation mechanisms
2Measurement precision
If complex image processing is used to determine vehicle position, then positioning precision is improved, but computational resources and system complexity increase
Solution Approach 1:
The system extracts only the essential measurement data needed for positioning (distance and angle) using dedicated sensors, separating the critical positioning function from complex image processing while maintaining sufficient accuracy for automated control
Solution Approach 2:
Dedicated sensors act as intermediaries between the crop receiving vehicle and the control system, providing processed position data directly without requiring complex image processing, thus simplifying the information flow while maintaining measurement precision
3Productivity
If automated positioning system is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The automated positioning system is segmented into distinct functional modules: sensor units for detection, computing system for processing, actuators for execution, and control logic for coordination, allowing each component to be optimized independently while working together to improve productivity
Solution Approach 2:
The computing system serves multiple functions including sensor data processing, position calculation, actuator control, and system coordination, consolidating what could be separate complex systems into a single multi-functional unit that improves productivity without proportionally increasing overall system complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances operational efficiency by automating the positioning of the crop unloading tube, reducing operator workload and computational resources, ensuring precise and efficient transfer of harvested crops to the receiving vehicle without the need for complex image processing.
Implementation Method 1
using transceiver-based sensors like RADAR or LIDAR
Implementation Method 2
using transceiver-based sensors like RADAR or LIDAR
Data Source
Figure 1
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Figure 3
AI summary
An agricultural harvester (10) includes one or more actuators (110, 112, 114) configured to move a crop unloading tube (22) of the harvester (10) relative to a frame (26) of the harvester (10). Additionally, the agricultural harvester (10) includes a sensor (102) configured to capture data indicative of a presence of the crop receiving vehicle (20, 74) within a crop unloading zone (98) of the agricultural harvester (10). Moreover, the agricultural harvester (10) includes a computing system (116) communicatively coupled to the sensor (102) and configured to determine when the crop receiving vehicle (20, 74) is present within the crop unloading zone (98) based on the data captured by the sensor (102). In addition, when it is determined that the crop receiving vehicle (10, 74) is present within crop unloading zone (98), the computing system (116) is configured to control an operation of the one or more actuators (110, 112, 114) such that the crop unloading tube (22) is moved relative to the frame (26) from a current position to a predetermined crop unloading position.