Depth Indicators for Wheel Loader Training Simulators
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Solution Overview
Problem
Real-world training for operators of industrial machines like shovels and wheel loaders is challenging due to the difficulty in providing proper depth perspectives in two-dimensional computer-based training simulators, which limits the effectiveness of operator training.
Innovation Solution
A simulated training environment is generated using a processor, including indicators that provide depth-related information to operators, such as level-grade detection and shovel-truck alignment, with warnings and visual feedback to ensure accurate positioning and operation of machinery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a two-dimensional monitor or screen is used to display the training environment, then the device complexity is reduced and ease of operation is improved, but the depth perspective and measurement precision are insufficient
Solution Approach 1:
The patent overlays depth-related graphical indicators (such as level-grade indicators, swing path indicators, and alignment indicators) on the two-dimensional display to provide depth perspective information. This adds a virtual dimension of depth perception to the flat screen display, allowing operators to judge depth relationships without switching to a three-dimensional display environment.
Solution Approach 2:
The patent introduces graphical indicators as intermediary elements that mediate between the two-dimensional display and the three-dimensional spatial relationships. These indicators (such as colored zones, lines, and markers) serve as visual mediators that convey depth information without requiring the display itself to be three-dimensional.
2Measurement precision
If depth-related indicators and warnings are added to provide proper depth perspectives, then the measurement precision and training effectiveness are improved, but the device complexity increases
Solution Approach 1:
The depth-related indicators serve multiple functions simultaneously: they provide depth perspective, indicate level-grade planes, show swing paths, mark alignment references, and provide warning boundaries. This multi-functionality reduces the need for separate display elements for each function, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent changes the visual parameters of the display (such as color, transparency, and positioning of graphical indicators) to convey different depth information. By manipulating these visual parameters, the system provides rich depth perspective without adding physical complexity to the display hardware.
3Reliability
If real-world or on-site training is provided for operators, then the training effectiveness and reliability are improved, but the cost and loss of time increase
Solution Approach 1:
The patent creates a simulated training environment that copies the essential depth relationships and operational contexts of the real-world working environment. By replicating depth perspectives, level-grade planes, and spatial relationships in the simulation, operators can train effectively without leaving the training facility, saving time while maintaining training reliability.
Data Source
AI summary
Methods and systems for training an operator. One system includes a computing device including a processing unit and computer-readable medium. The computer-readable medium stores a training simulator application that is configured to receive an operating command from the operator, generate a simulated working environment and a simulated wheel loader having a simulated bucket, and generate an indicator providing depth-related information to an operator relating to a position of at least a portion of the simulated wheel loader with respect to a point-of-reference within the simulated working environment. The training simulator application is further configured to output the simulated working environment and the indicator for display to the operator, and automatically modify the indicator based on a position of the simulated wheel loader with respect to the point-of-reference.