Unloading Position Control for Transport Machines in Material Stacking
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Solution Overview
Problem
Wheel loaders face challenges in efficiently stacking materials transported by transport machines like dump trucks, as determining the optimal unloading position at a work site is not adequately addressed.
Innovation Solution
A system comprising a transport machine equipped with sensors to detect accumulated materials and a controller that determines the optimal unloading position based on the detected information, ensuring minimal material accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If materials are transported to a work site by a transport machine, then the materials can be delivered to the site, but determining the optimal unloading position becomes complex and inefficient
Solution Approach 1:
The system performs preliminary detection of the accumulated body shape and volume before the transport machine arrives. The controller pre-calculates the optimal unloading position based on the detected material distribution, so that when the transport machine arrives, the exact unloading position is already determined, eliminating complex real-time decision-making and improving stacking efficiency
Solution Approach 2:
The sensor continuously detects the shape and volume of the accumulated material body, providing feedback to the controller. The controller uses this feedback to dynamically adjust and determine the optimal unloading position, creating a closed-loop system that automatically optimizes material stacking without complex manual intervention
2Productivity
If materials are unloaded without considering the accumulated body shape, then unloading is simple and fast, but material dispersion increases and stacking efficiency decreases
Solution Approach 1:
The system analyzes the local characteristics of the accumulated material body by detecting its shape and volume distribution. Different regions of the accumulated body are identified, and the optimal unloading position is selected based on local material density and distribution characteristics, ensuring precise unloading that minimizes dispersion and maximizes stacking efficiency
3Ease of operation
If the transport machine unloads materials at any position, then the operation is simple, but the wheel loader cannot efficiently stack the materials
Solution Approach 1:
The system enables the transport machine to autonomously determine its own optimal unloading position by equipping it with sensors and a controller that detect the accumulated body characteristics and calculate the best unloading location. This self-service capability eliminates the need for complex coordination between the transport machine and wheel loader operators, maintaining operational simplicity while significantly improving stacking efficiency
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
Enables precise and efficient unloading of materials at the work site, optimizing the stacking process and reducing material dispersion.
Implementation Method 1
a sensor that detects an accumulated body of the materials accumulated on ground at the work site
Data Source
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AI summary
A position at which a transport machine is to unload materials at a work site is appropriately determined. The transport machine transports the materials at the work site. A sensor detects an accumulated body of the materials accumulated on the ground at the work site. A controller provides a command for an operation of the transport machine. The controller recognizes the accumulated body on the basis of a detection result of the sensor and determines a position at which the transport machine is to unload the materials at the work site on the basis of information regarding the accumulated body.