Helmet-Mounted Multi-Mode Signaling Device with Segmented Switch Control
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Solution Overview
Problem
Existing marker/signaling devices for low/no light conditions lack a reliable, unambiguous, and constant visual and tactile means to verify ON/OFF status and operating mode, particularly in high noise and vibration environments, and often require complex switching mechanisms that can lead to accidental activation or battery depletion.
Innovation Solution
A multi-function, multi-mode marker/signaling device with a low-profile, curved design featuring dual independent emitter activation switches and a programmable integrated circuit, allowing for user-defined selectable functions in visible and infrared spectra, with visual and tactile confirmation of operating status, and a low-force emergency breakaway feature to prevent injury during parachute operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex switching mechanisms are used to provide multiple functions and modes, then device functionality and versatility are improved, but the risk of accidental activation and battery depletion increases, and device complexity increases
Solution Approach 1:
The device divides switching functions into two independent sets: main switch means for power control and mode selection, and nose switch means for function selection within each mode. This segmentation isolates critical power control from function selection, preventing accidental activation while maintaining multiple functions and modes.
Solution Approach 2:
The patent introduces an intermediary microprocessor-controlled system that mediates between the simple mechanical switches and the complex emitter control. The microprocessor interprets switch positions, controls emitter activation sequences, and prevents unauthorized or accidental activation of multiple emitters simultaneously.
2Adaptability or versatility
If complex switching mechanisms are used to provide multiple functions and modes, then device functionality and versatility are improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical switching mechanisms with simple mechanical switches (main switch and nose switch) combined with a microprocessor control system. The microprocessor handles the complexity of coordinating multiple emitters, modes, and functions, while the mechanical interfaces remain simple and intuitive.
Solution Approach 2:
The device uses a universal control architecture where the same main switch and nose switch combinations control multiple functions across different modes. The microprocessor interprets switch positions to activate appropriate emitter sequences, allowing one set of simple switches to control multiple functions including visible/IR selection, steady/flash modes, and emergency signaling.
3Object-affected harmful factors
If a low-profile curved design is used to reduce wind resistance and snag potential, then aerodynamic performance and safety are improved, but device complexity increases due to integration constraints
Solution Approach 1:
The device employs a dome-shaped housing with a curved external surface that minimizes wind resistance and snag potential during parachute operations. This spherical geometry allows smooth airflow around the device and eliminates sharp edges that could catch on parachute lines or fabric.
Solution Approach 2:
The patent nests multiple functional components within the compact dome-shaped housing: emitters are positioned within the housing, switches are integrated into the curved surface, and the battery is contained within the base. This nested arrangement maintains the low-profile curved design while accommodating all necessary components.
4Reliability
If visual and tactile confirmation mechanisms are added to verify operating status, then reliability and user confidence are improved, but device complexity increases
Solution Approach 1:
The device incorporates feedback mechanisms that provide continuous visual and tactile confirmation of operating status. Visual indicators show which mode and function are active, while tactile feedback through the switch means confirms switch position and operational state. This feedback loop ensures users can verify device status without ambiguity.
Solution Approach 2:
The patent uses color changes in visual indicators to communicate operating status and mode selection. Different colors indicate different modes (e.g., visible vs. infrared), and color transitions provide immediate visual feedback when mode changes occur, enhancing user confidence without requiring complex display systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides a reliable and intuitive means to confirm operating status and select functions in low/no light conditions, minimizing the risk of accidental activation and battery depletion, while ensuring safe detachment and reduced wind resistance during high-speed free fall.
Implementation Method 1
Visible and invisible (infrared) marking is provided by multi-colored light emitting diodes (LED) or infrared (IR) emitters (emitters)
Implementation Method 2
The marker/signaling device also includes vibratory means for providing tactile feedback indicative of device operating status
Data Source
AI summary
A multi-mode, multi-function marker/signaling device, capable of detachably mounting to helmets, has operating switches with positive visual and tactile cues located at opposing ends. A cover is attached to a base to provide a waterproof internal space. An electronic circuit board mounted within the waterproof space includes one or more visible and/or infrared emitters. Built-in programming provides user-defined and selectable modes of operation and multiple functions within those modes by means of serial manipulation of each switching means with a single digit. The emitters are multi-colored and/or infrared devices operating either steady ON, flashing, or coded flash, and are programmed to operate either independently or together. A replaceable battery provides power. A battery compartment is integral to and accessed from the underside (mounting surface) of the base.