Head-Mounted Display Task-Range Guidance for Fastening Safety
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Solution Overview
Problem
Existing display devices fail to ensure safe and efficient task performance by providing real-time feedback on permissible task ranges and object positioning, leading to potential injuries and inefficiencies.
Innovation Solution
A display device that includes a binocular head-mounted display system with sensors and cameras to track the worker's position and direction, setting a permissible task range and outputting alerts when the task position exceeds this range, while also displaying virtual objects to guide safe and efficient task execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a display device is used to display virtual space overlapping real space to increase task efficiency, then productivity is improved, but task safety deteriorates due to lack of real-time feedback on permissible task ranges
Solution Approach 1:
The patent implements a feedback mechanism by displaying a virtual first object that visually indicates the permissible task range in real-time. The processing device determines whether the task position is within this range and provides continuous visual feedback to the worker, enabling safe task performance while maintaining high productivity through augmented reality guidance
2Device complexity
If no real-time feedback on task position is provided, then device complexity is reduced, but task safety deteriorates due to potential injuries from improper positioning
Solution Approach 1:
The virtual first object serves multiple functions: it indicates the permissible task range, provides safety feedback, and guides task execution. This multi-functional approach enhances task safety without proportionally increasing device complexity, as the same display system performs both productivity enhancement and safety monitoring functions
3Ease of operation
If the permissible task range is not visually indicated, then ease of operation is improved by simpler operation, but task safety deteriorates due to worker unawareness of safe positioning
Solution Approach 1:
The patent utilizes visual display characteristics to indicate the permissible task range through the virtual first object. By changing display properties such as color, transparency, or brightness based on whether the task position is within the safe range, the system provides intuitive safety feedback that enhances task safety while maintaining ease of operation through natural visual perception
Data Source
AI summary
According to one embodiment, a display device is configured to display a virtual object to overlap a real space. The display device is configured to acquire a position and a direction of the display device. The display device is configured to display a first virtual object indicating a permissible task range, the permissible task range being set using the position and the direction. The display device is configured to set a task position at a prescribed position for a fastening location of an article present in the real space. The display device is configured to determine whether or not the task position is within the permissible task range, and output a first alert when the task position is outside the permissible task range.