Work Vehicle Display Control for Bucket Overlap
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Solution Overview
Problem
The operability of work vehicles, such as hydraulic excavators, is compromised when the bucket approaches the cab, as work assistance information overlaps with the bucket, reducing the operator's ability to accurately manipulate the vehicle.
Innovation Solution
A display control system that detects the bucket's position relative to the cab and adjusts the display of work assistance information in terms of size and position, ensuring it remains visible and usable around the bucket, even as the bucket moves closer to the cab.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the bucket is moved closer to the cab in the forward direction, then the bucket can reach closer work areas, but the work assistance information overlaps with the bucket making it harder to see
Solution Approach 1:
The display controller dynamically adjusts the display position and size of work assistance information based on the real-time position of the bucket detected by the bucket position detector. When the bucket moves forward closer to the cab, the system automatically repositions and resizes the displayed information to prevent overlap and maintain visibility, resolving the contradiction between extended reach and information visibility.
2Adaptability or versatility
If the bucket is moved in the forward direction and rearward direction, then the operator can access different work zones, but the visually recognized size of the bucket changes causing information overlap
Solution Approach 1:
The system changes the display parameters (position and size) of work assistance information based on the bucket's position parameters detected by the bucket position detector. As the bucket moves between different work zones, the display controller adjusts the information display parameters to maintain optimal visibility and prevent overlap, enabling versatile work zone access while preserving information clarity.
3Device complexity
If work assistance information is displayed at a constant size, then the display system is simple, but the information overlaps with the bucket when it moves closer to the cab
Solution Approach 1:
The bucket position detector provides feedback about the bucket's position to the display controller, which then adjusts the display position and size of work assistance information accordingly. This feedback loop enables the system to automatically prevent information overlap when the bucket moves closer to the cab, maintaining information visibility without requiring complex manual intervention.
Data Source
AI summary
A work vehicle includes: a main body having a cab; a display device provided in the cab and configured to display work assistance information to be overlaid on an actual view of a work site; a display controller configured to cause the work assistance information to be displayed on the display device; and a bucket position detector configured to detect a position of a bucket relative to the main body. The display controller is configured to cause a display position of the work assistance information on the display device to follow a movement of the bucket. The display controller is configured to change a display manner of the work assistance information on the display device based on the position detected by the bucket position detector, when the bucket is moved relative to the cab in a forward direction and a rearward direction.