Work Vehicle Display Control for Bucket Visibility
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Solution Overview
Problem
The display area of the display device in work vehicles, such as hydraulic excavators, is limited, making it difficult for work assistance information to follow the movement of the work implement, particularly the bucket, which hampers operability.
Innovation Solution
A work vehicle equipped with a display device in the cab that displays work assistance information, a bucket position detector, and a display controller to adjust the display position of the information around the bucket, ensuring it remains visible even when the bucket moves close to the boundary of the display area by changing the relative position or stopping the display when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display device is provided at the front surface of the cab with a limited display area, then the structure is simple and easy to manufacture, but the work assistance information cannot follow the movement of the bucket, reducing operability
Solution Approach 1:
The display controller dynamically adjusts the display position of work assistance information based on the detected bucket position. When the bucket moves, the information display position is updated to follow the bucket within the limited display area, making the system adaptive rather than static.
Solution Approach 2:
The system transitions from a fixed display position to a multi-dimensional display strategy by changing the relative position between work assistance information and the bucket in the display area when the information approaches the boundary, effectively utilizing the limited display space more flexibly.
2Ease of operation
If the work assistance information follows the movement of the bucket, then the operability is improved, but the information may go beyond the boundary of the limited display area, causing loss of information
Solution Approach 1:
The bucket position detector continuously monitors the bucket position and provides feedback to the display controller. The display controller uses this feedback to adjust the display position of work assistance information in real-time, ensuring the information remains within the display area boundaries while following the bucket movement.
Solution Approach 2:
The system dynamically adjusts the display position based on the bucket's movement state. When the information approaches the boundary, the relative position between the information and the bucket is changed to keep the information within the display area, preventing information loss.
Data Source
AI summary
A work vehicle includes: a display device provided in a cab and configured to display work assistance information to be overlaid on an actual view of a work site; a bucket position detector configured to detect a position of a bucket; and a display controller configured to control a content to be displayed on the display device and configured to cause the work assistance information to be displayed around the bucket while causing the work assistance information to follow the movement of the bucket based on the detected position. When work assistance information becomes close to a boundary of a display area of the display device due to the movement of the bucket, the display controller is configured to cause the work assistance information to be displayed on the display device with a relative position between the work assistance information and the bucket in the display area being changed.