Aircraft Cabin Pressure Assessment System for Passenger Comfort

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Solution Overview

Problem

Aircraft cabin pressure changes during ascent and descent cause passenger discomfort due to rapid pressure differentials, and existing methods struggle to balance flight time and fuel efficiency with passenger comfort.

Innovation Solution

A cabin pressure assessment system with polling devices and a control unit that collects passenger feedback to determine comfort factors, adjusting ascent and descent rates based on positive, neutral, or negative feedback to optimize flight conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the rate of ascent and/or descent is increased to reduce flight time, then productivity is improved, but passenger comfort deteriorates due to rapid pressure changes

Engineering Contradiction:

Improveflight timeVSAvoidpassenger discomfort

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system implements feedback by collecting passenger comfort data during ascent and descent phases, then using this feedback to dynamically adjust the rate of climb and descent. The control unit receives comfort ratings from passengers and modifies flight parameters in real-time to optimize both productivity and comfort, resolving the contradiction between fast flight and passenger well-being.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system makes the aircraft's ascent and descent rates dynamic rather than fixed. Based on real-time passenger comfort feedback, the control unit adjusts the rate of climb and descent, allowing the flight parameters to adapt to passenger conditions. This dynamic adjustment enables the system to maintain high productivity while preventing excessive pressure changes that cause discomfort.

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If the rate of ascent and/or descent is decreased to improve passenger comfort, then passenger comfort is improved, but flight time increases reducing productivity

Engineering Contradiction:

Improvepassenger discomfortVSAvoidflight time

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The system uses passenger comfort feedback to determine the optimal descent rate. When passengers report discomfort, the control unit adjusts the descent rate to alleviate symptoms. When comfort levels are acceptable, the system can maintain faster rates to minimize flight time. This feedback-driven approach resolves the contradiction by adjusting speed based on actual passenger conditions rather than using a conservative fixed rate.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system changes the flight parameters (ascent and descent rates) based on passenger comfort conditions. Rather than maintaining a constant slow rate for all situations, the control unit modulates the rate of climb and descent according to real-time feedback, allowing faster rates when passengers are comfortable and slower rates when discomfort is reported, thus optimizing both comfort and productivity.

Inventive Principle:

Principle #35Parameter changes

3Object-affected harmful factors

If aircraft operators control rates of ascent and descent to ensure passenger comfort, then passenger comfort is improved, but flight time increases and fuel consumption increases

Engineering Contradiction:

Improvepassenger discomfortVSAvoidfuel consumption

Core Design Contradiction:

Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The system implements feedback control where passenger comfort data is continuously collected and used to adjust ascent and descent rates. This allows the aircraft to operate at optimal speeds that minimize fuel consumption while maintaining passenger comfort. The feedback mechanism prevents unnecessary conservative slow rates when passengers are comfortable, thereby reducing overall fuel usage compared to traditional fixed-rate approaches.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The control unit dynamically changes flight parameters (ascent and descent rates) based on passenger comfort feedback. This optimization allows the aircraft to use faster rates when comfortable (reducing time and fuel) and slower rates when needed (maintaining comfort). The adaptive parameter adjustment resolves the contradiction by finding the most fuel-efficient balance between speed and comfort based on actual passenger conditions.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10017253B1Aircraft cabin pressure assessment systems and methods

Publication Date: 2018.07.10 THE BOEING CO

AI summary

A cabin pressure assessment system for an aircraft includes a plurality of polling devices within an internal cabin of the aircraft. The plurality of polling devices are associated with passenger seats onboard the aircraft. A cabin pressure assessment control unit is communicatively coupled to the plurality of polling devices. The cabin pressure assessment control unit is configured to receive cabin pressure comfort data from the plurality of polling devices.