Helmet Marker IR Detection With Directional IFF Alerts
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Solution Overview
Problem
Existing helmet-mounted marker systems lack synchronization of flashing signals and IFF interrogation responses, leading to confusion and difficulty in distinguishing friendly combatants from enemies or muzzle flashes on the battlefield, and there is a need for a system to detect and discern incoming infrared radiation and its source direction.
Innovation Solution
A marker system with a controller powered by a helmet-mounted source, featuring visible and infrared emitters and detectors, which emits alerts and determines the direction of incoming infrared radiation through wireless feedback, ensuring synchronized flashing and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If helmet-mounted marker systems use random flashing signals for visibility, then combatants can be identified on the battlefield, but the signals become incoherent, confusing, and indistinguishable from muzzle flash or enemy signals
Solution Approach 1:
The patent implements synchronized periodic flashing signals coordinated through GPS timing. Multiple helmet-mounted markers flash in coordinated patterns rather than randomly, creating coherent visual signals that can be distinguished from enemy markers or muzzle flashes. The synchronization ensures all friendly markers operate on a common timing basis, eliminating the confusion of incoherent random flashing.
2Reliability
If helmet-mounted markers provide visual coded signals for IFF identification, then friendly combatants can be identified, but without synchronization the signals remain confusing and distracting
Solution Approach 1:
The patent introduces GPS satellite timing signals as an intermediary mechanism to coordinate IFF identification signals between multiple markers. Each marker receives GPS time synchronization and uses this common reference to coordinate its identification signals with other friendly markers, achieving reliable IFF identification without complex direct communication between markers.
3Illumination intensity
If multiple markers are mounted on a single helmet for enhanced visibility, then identification capability is improved, but synchronization between markers becomes more difficult
Solution Approach 1:
The patent makes each helmet-mounted marker universally synchronized through GPS timing, allowing multiple markers on a single helmet to operate independently yet coherently. Each marker unit functions autonomously but receives common GPS time reference, enabling synchronized operation without complex inter-marker wiring or coordination mechanisms.
4Reliability
If the marker system includes infrared detection capability to detect incoming IR radiation, then the system can detect laser designators and range finders, but the device complexity and cost increase
Solution Approach 1:
The patent combines infrared detection functionality with the existing visible-light marker system into a single integrated unit. The infrared detector, visible emitters, and control circuitry are merged in one compact marker device, allowing simultaneous detection of incoming IR radiation and emission of visible identification signals without requiring separate 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 system enhances battlefield visibility by synchronizing marker flashes and providing directional alerts, reducing confusion and improving combatant identification through coherent and synchronized infrared detection.
Implementation Method 1
there is a first infrared detector that is electrically interfaced to the controller and aimed to receive infrared light through the enclosure and a second infrared detector that is electrically interfaced to the controller and aimed to receive the infrared light through the enclosure
Implementation Method 2
The controller is configured to selectively initiate a flow of electric current though the visible wavelength emitters or through the infrared wavelength emitters causing the visible wavelength emitters or the infrared wavelength emitters to emit light
Data Source
AI summary
A marker system includes an enclosure with a controller therewithin. Emitters are electrically interfaced to the controller and include visible wavelength emitters and infrared wavelength emitters. The controller is configured to selectively initiate a flow of electric current though the visible wavelength emitters or through the infrared wavelength emitters causing the visible wavelength emitters or the infrared wavelength emitters to emit light and the light passes through the enclosure. There is at least one infrared detector, each of which is electrically interfaced to the controller and each of which is configured to detect infrared light that enters the enclosure. When the controller receives an electrical signal from any of the at least one infrared detector indicating reception of infrared light, the controller sends a signal to a wireless feedback module and the wireless feedback module emits a signal (e.g., a vibration) to warn the wearer.