Headset Alarm Apparatus for Pilot Attention Monitoring

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Solution Overview

Problem

Current collision warning systems in aircraft are complex, costly, and require other aircraft to be equipped with transponders or FLARM systems, posing a risk of collisions during visual flight rules where pilots must briefly look away from the airspace.

Innovation Solution

An alarm apparatus integrated into a pilot's headset that uses an attitude sensor to detect head inclination and trigger an alarm signal if the pilot fails to maintain attention on the airspace for a preset period, providing a simple and inexpensive solution to reduce collision risk.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If collision warning systems use transponders and FLARM signals to detect other aircraft, then collision detection capability is improved, but device complexity and cost increase

Engineering Contradiction:
Improvecollision detection capabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex electronic collision warning systems (transponders, FLARM) with a simple mechanical/inertial sensor system. The attitude sensor detects head position changes mechanically, and the control unit processes this data to trigger alarms, eliminating the need for transponders and FLARM equipment while maintaining collision detection capability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Instead of directly detecting other aircraft using transponders, the system copies the pilot's head position state to infer attention status. By monitoring head attitude changes, the system infers whether the pilot is observing the airspace or looking at instruments, providing an indirect but effective collision warning mechanism

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If pilots look at aviation charts during visual flight rules, then navigation accuracy is improved, but collision risk increases due to interrupted airspace observation

Engineering Contradiction:
Improvenavigation accuracyVSAvoidcollision risk
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The system provides continuous feedback to the pilot about their head position relative to the airspace observation requirement. When the sensor detects that the pilot's head has been in a non-observation position for too long, the control unit triggers an alarm signal, giving feedback that prompts the pilot to return to proper airspace monitoring

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary detection of head position deviations before a collision risk actually materializes. By continuously monitoring head attitude and predicting when the pilot will exceed the maximum period for non-observation, the system triggers warnings in advance, allowing the pilot to correct their behavior before it becomes dangerous

Inventive Principle:
Principle #10Preliminary action

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

Effectively reduces the risk of air traffic collisions by alerting pilots to maintain attention on the airspace through audible and visual alarms, customizable for individual hearing and conditions, with adjustable volume and duration, and optional distress signals for prolonged neglect.

Implementation Method 1

an attitude sensor which detects its inclination relative to a starting position (for example the horizontal)

Methodology Applied
Scientific EffectInclination detection:

Data Source

PatentUS8981969B2Alarm apparatus for a pilot's headset
Publication Date: 2015.03.17 ROBERT BOSCH GMBH
  • US8981969B2 patent drawing
  • US8981969B2 patent drawing
  • US8981969B2 patent drawing

AI summary

The invention relates to an alarm apparatus (1) for a pilot's headset (3) and to a pilot's headset having such an alarm apparatus. The alarm apparatus comprises an attitude sensor (11), which detects its inclination relative to a starting position or the horizontal, and a measuring device (12) for recording a period for which the inclination recorded by the attitude sensor exceeds a stipulated inclination tolerance limit. In addition, the alarm apparatus has a means (13) which is set up to trigger an alarm signal when a recorded period of the inclination tolerance limit being exceeded is longer than a preset maximum period.