Grain Cart Fill Detection for Autonomous Truck Box Unloading
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Solution Overview
Problem
Grain cart operation requires manual control by operators to ensure efficient and accurate unloading into grain trucks, which is challenging due to the need to monitor multiple functions and varies based on truck type, leading to potential operator error and inefficiency.
Innovation Solution
A system with ranging devices and controllers is used to autonomously control grain carts, determining the position and fill level relative to the grain truck, using cameras and lidars for detection and alignment, and implementing algorithms for path planning and unloading based on truck configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual operator control is used to monitor fill level and position, then operational flexibility and adaptability to different truck types are maintained, but operator error and inefficiency increase due to the difficulty of monitoring multiple functions simultaneously
Solution Approach 1:
The grain cart system performs self-monitoring of fill level and self-positioning relative to the grain truck using onboard sensors and automated control, eliminating the need for manual operator monitoring and reducing human error while maintaining operational flexibility
Solution Approach 2:
Manual visual monitoring and physical positioning by the operator is replaced with automated electronic sensing systems (cameras, LIDAR, ranging devices) and computer-controlled positioning, improving reliability while reducing operator workload
2Measurement precision
If visual monitoring by operator is used to determine fill level, then no additional equipment is needed, but measurement precision and consistency are reduced due to human estimation errors
Solution Approach 1:
Visual estimation by the operator is replaced with electronic ranging devices and sensors that automatically measure fill level with high precision, eliminating human error while providing consistent and accurate measurements
Solution Approach 2:
Direct visual monitoring by the operator is replaced with intermediary sensing systems (cameras, LIDAR, depth sensors) that capture and process visual information to determine fill level, improving precision while managing system complexity through modular sensor integration
3Productivity
If automated control systems are implemented to reduce operator workload, then unloading precision and efficiency improve, but system complexity and initial operational requirements increase
Solution Approach 1:
The automated control system is designed to handle multiple truck types and configurations through programmable algorithms and adaptive sensing, improving productivity while managing complexity through universal design principles that reduce the need for specialized equipment for each truck type
Solution Approach 2:
The system continuously monitors fill level, position, and unloading rate using sensors and provides real-time feedback to the control algorithm, which automatically adjusts the unloading process to optimize efficiency and precision while managing system complexity through closed-loop control
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
Automates the grain cart operation, reducing operator error and ensuring precise and efficient unloading by accurately positioning the grain cart and monitoring fill levels, thereby optimizing the loading process.
Implementation Method 1
The ranging device is configured to identify a distance to the top edge of the truck box and identify a distance to an area in the truck box
Data Source
AI summary
A system is provided for controlling a grain cart relative to a grain truck. The grain cart includes a grain tank and an unload auger configured to transfer crop material out of the grain tank. The grain truck includes a truck box extending from a first end to a second end. The truck box includes a top edge extending around the top of the truck box. The system comprises a ranging device and a controller. The ranging device is configured to identify a distance to the top edge of the truck box and identify a distance to an area in the truck box. The controller is configured to determine a position of the grain cart relative to the grain truck, and determine whether the grain cart is positioned near the first end of the truck box. If the controller determines that the grain cart is positioned near the first end of the truck box, the controller is configured to determine a fill level in the area based on the distance to the top edge of the truck box and the distance to the area in the truck box, determine whether the fill level exceeds a threshold, and if the controller determines that the fill level does not exceed the threshold, the controller is configured to start the unload auger.