Electrochromic Visor for Sudden Visibility Loss Simulation
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Solution Overview
Problem
Current pilot training methods fail to simulate the sudden onset of reduced-visibility conditions effectively, leading to spatial disorientation and increased risk of accidents, as they do not accurately replicate the stress and confusion experienced during unexpected entries into Instrument Meteorological Conditions (IMC).
Innovation Solution
A flight helmet with an electrically controlled visor that can be raised or lowered based on safety sensor inputs, combined with a power supply to control the optical state of the visor, simulating reduced-visibility conditions by selectively occluding the pilot's vision, thereby mimicking the sudden onset of IMC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flight simulators are used to train pilots for reduced-visibility conditions, then training availability increases, but the ability to simulate spatial disorientation and stress deteriorates
Solution Approach 1:
The patent uses a flight helmet that creates a direct visual copy of the reduced-visibility environment in the pilot's actual field of view, rather than relying on simulator displays. This allows training to occur in the real aircraft environment while maintaining simulation capabilities, thus improving both availability and realism simultaneously
Solution Approach 2:
The patent introduces an intermediary device (the flight helmet with controllable visor) that bridges the gap between simulator training and actual flight experience. The helmet acts as a mediator that can be used in both simulator and real aircraft environments, providing consistent training effects across different contexts
2Reliability
If vision-restricting devices are used during training flights, then reduced-visibility conditions can be simulated, but the sudden onset effect deteriorates
Solution Approach 1:
The patent employs a dynamically controllable visor that can change its optical properties in real-time based on sensor inputs detecting actual reduced-visibility conditions. This dynamic adjustment allows the system to simulate the sudden onset of IMC by rapidly transitioning from clear to obscured vision, matching the speed and unpredictability of real-world events
Solution Approach 2:
The system uses feedback from sensors that monitor actual flight conditions (such as weather sensors detecting IMC) to automatically control the visor state. This feedback mechanism ensures the visor only activates when genuine reduced-visibility conditions are detected, creating authentic sudden-onset training scenarios rather than predetermined sequences
3Ease of manufacture
If pilots are trained with predetermined training sequences, then training structure improves, but adaptability to unexpected conditions deteriorates
Solution Approach 1:
The system enables self-service training where the aircraft and environment themselves provide the training stimulus. Sensors detect actual reduced-visibility conditions and automatically trigger the appropriate training scenario, eliminating the need for predetermined sequences while maintaining structured training benefits. The system adapts to whatever conditions actually occur during flight
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
This solution enables pilots to train in a more realistic and stressful environment, improving their reaction to sudden visibility changes and reducing the risk of accidents by simulating the proprioceptive and vestibular sensations associated with IMC entries.
Implementation Method 1
the visor (122) includes an electrochromic material (122a)
Data Source
AI summary
A system and method for improving safety when operating an aircraft in reduced or modified visibility conditions is disclosed. A flight helmet having a visor with an electrically controlled optical state is configured to automatically move the visor up out of the pilot's line of sight on receipt of a signal from a safety sensor. This sensor-based automated moving of the visor helps alleviate danger in circumstances where the visor is improperly hindering the pilot. The helmet can be used, for example, in reduced-visibility training sessions and thereby improve the safety of such sessions. And the helmet can be used with enhanced or synthetic vision systems as a failsafe if the systems are hindering rather than helping the pilot.