Work Vehicle Display Controller Overlaying Target Design Topography
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Solution Overview
Problem
Conventional work vehicles, such as hydraulic excavators, face inefficiencies in displaying necessary information to operators, making it difficult to manage work implements effectively, which hinders working efficiency.
Innovation Solution
A work vehicle equipped with a display device in the cab that overlays work assistance information on the actual work site view, displaying final target design topography initially and switching to target design topography based on working steps, allowing operators to understand the work's contents accurately and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the display device displays all target design topography information at once, then the operator can see the complete work goal, but the operator cannot focus on specific working steps and loses the field of view
Solution Approach 1:
The patent segments the target design topography information into multiple pieces corresponding to different working steps. The display controller selectively displays only the relevant segment based on the current working step, rather than showing all information simultaneously. This allows the operator to focus on specific guidance information without being overwhelmed by the complete dataset, resolving the contradiction between information completeness and field of view.
2Loss of information
If the display device shows detailed working step information, then the operator can understand current tasks, but the operator cannot see the overall work progress and final goal
Solution Approach 1:
The patent implements dynamic display control where the displayed information changes based on the current working step. The display controller adapts the content shown to match the operator's current task stage, providing detailed guidance when needed while maintaining the ability to show overall progress. This dynamic adaptation resolves the contradiction between showing detailed step information and maintaining overall work context visibility.
3Ease of operation
If manual switching between different target design topography segments is required, then the operator can control information display, but working efficiency decreases due to additional operations
Solution Approach 1:
The patent implements automatic switching of displayed information segments based on the current working step detection. The display controller automatically determines which information segment to display without requiring manual operator intervention. This self-service approach maintains ease of operation while eliminating the time loss associated with manual switching, thereby resolving the contradiction between operator control and working efficiency.
Data Source
AI summary
A work vehicle includes a work implement, a main body, a display device, and a display controller. To the main body, the work implement is attached, and the main body has a cab. The display device is provided in the cab and configured to overlay and thus display work assistance information on an actual view of a work site. The display controller causes the display device to display target design topography as work assistance information. When a work starts, the display controller causes the display device to display final target design topography that is achieved after the work is completed, and subsequently, switches to displaying target design topography to be achieved depending on a working step performed.