Midair Warning Device for Eye-Level Ground Hazard Alerts
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Solution Overview
Problem
There are no safety items available to alert man lift operators of hazards on the ground, such as changes in elevation, rebar, or holes in concrete, which can cause the lift to tip over, as existing solutions do not provide midair warnings.
Innovation Solution
A midair warning device is attached to a building's ceiling near the hazard, featuring a warning indicator visible to the operator at eye level, providing a visual alert to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If ground-level hazard warnings are placed on the ground, then the warning is visible to operators, but the operator cannot see the hazard in time to avoid collision
Solution Approach 1:
The warning device is moved from the ground level to midair suspension, changing the spatial dimension of hazard indication. This allows the warning to be visible to operators at eye level while still indicating ground hazards, solving the contradiction between early warning and visibility.
Solution Approach 2:
A suspended warning indicator acts as an intermediary between the ground hazard and the operator's line of sight. The warning indicator is positioned in the operator's visual field to alert them of hazards below, serving as a mediator that bridges the gap between ground-level dangers and operator awareness.
2Difficulty of detecting and measuring
If no midair warning device is installed, then the device complexity is low, but the operator cannot detect hazards below eye level
Solution Approach 1:
The warning function is extracted from ground-level positioning and suspended in midair within the operator's visual field. This extraction allows hazard detection to occur at eye level without requiring complex detection systems, as the warning indicator passively provides visual alerting.
Solution Approach 2:
The warning indicator uses high-visibility colors (such as orange or yellow) to ensure operators can detect hazards from a distance. The color contrast makes the warning conspicuous against typical construction backgrounds, improving hazard detection without requiring active electronic systems.
3Loss of information
If the warning indicator is placed at ground level, then it marks the hazard location, but it is not visible to operators on the lift platform
Solution Approach 1:
The warning indicator is positioned in the vertical dimension at midair suspension height, aligning with the operator's eye level on the lift platform. This dimensional change ensures hazard information is transmitted effectively while maintaining high visual visibility in the operator's field of view.
Data Source
AI summary
A midair warning device for warning a man lift operator of a hazard below. The midair warning device includes an attachment base adapted to be attached to a part of a building near a hazard to the man lift operator. The midair warning device includes a warning indicator connected to the attachment base so that the warning indicator is visible to the man lift operator near eye level of the man lift operator.