Triangular Emergency Signal Flags for Outdoor Visibility
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Solution Overview
Problem
Existing emergency signal devices for outdoor activities are either heavy and bulky, making them unwieldy for carrying, or difficult to recognize in snowy conditions, and often require additional permits or are limited in their visibility and display area.
Innovation Solution
An emergency signal device comprising two or more isosceles triangular flags attached to poles using fastening means such as eyelets, cords, or magnets, which can be made from lightweight materials like polyester or polyolefin, providing a large visible area and directional indication, and can be easily stored and carried as part of standard outdoor equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If square flags several meters long are used for emergency signaling, then the display area is increased, but the weight and bulk increase significantly making them unwieldy
Solution Approach 1:
The emergency signaling device is divided into multiple triangular flags (at least two) that can be attached to poles. Each flag is a separate component that can be independently handled and deployed, allowing the overall display area to be increased through multiple units without each unit becoming excessively large and heavy. The flags can be segmented into standard sizes that are easy to carry and deploy.
Solution Approach 2:
The invention transitions from using single large square flags to multiple triangular flags arranged in specific patterns (including forming larger triangular configurations). This dimensional reorganization allows the total display area to be maximized through the arrangement of multiple smaller units rather than relying on one large unit, improving the area-to-weight ratio.
2Area of stationary object
If square flags several meters long are used for emergency signaling, then the display area is increased, but the device becomes bulky and unwieldy when folded
Solution Approach 1:
The signaling device is segmented into multiple triangular flags that can be independently folded and stored. Each triangular flag folds into a compact shape that is much smaller when stored compared to a large square flag of equivalent display area. The segmented design allows each component to be minimally bulky while collectively providing the necessary display area when deployed.
3Difficulty of detecting and measuring
If pyrotechnic devices are used for emergency signaling, then the signal is noticeable, but they require special permits in some countries and have limited visibility in sparsely populated areas
Solution Approach 1:
The triangular flags are designed with high-visibility colors, particularly fluorescent or phosphorescent materials that stand out against natural backgrounds including snow. The flags can be colored in bright orange, yellow, or other high-contrast colors that are easily detectable by rescue personnel and others in the environment, eliminating the need for pyrotechnic devices that require permits.
4Area of stationary object
If signal flags are attached to a pole to increase visibility, then the display area is improved, but the device complexity increases
Solution Approach 1:
The invention uses standard poles (such as ski poles, avalanche probes, or simple sticks) that are already part of outdoor equipment, eliminating the need for specialized signaling poles. The triangular flags are designed with simple attachment mechanisms that can be secured to these universal poles using existing fastening methods, reducing overall device complexity while maintaining the ability to create large display areas through multiple flags.
Data Source
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AI summary
An emergency signaling device has at least one flag (F1 to F5) that can be attached to an object and is shaped like an isosceles triangle. At least one corner of the triangle has a fastening device, e.g., an eyelet (1-3), for attaching the flag to the at least one object.