Automated Cabin-Divider Door with Avionics Control
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Solution Overview
Problem
Existing aircraft divider doors require manual operation to open during takeoff and landing, which is inefficient and may lead to errors in ensuring the doors are properly stowed.
Innovation Solution
An automated cabin-divider door system that uses a motor, limit switch, and avionics system to automatically open the door prior to takeoff and landing, ensuring compliance with aircraft regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual operation is used for divider doors, then device complexity is reduced, but reliability deteriorates due to potential human error in ensuring doors are properly stowed
Solution Approach 1:
The system enables self-service operation where the divider door automatically opens and closes based on aircraft phase detection, eliminating the need for manual crew intervention and ensuring consistent compliance without human error
Solution Approach 2:
The system incorporates limit switches that provide feedback signals to the avionics system to confirm door position (open/closed), creating a closed-loop control system that verifies proper door stowing and enhances reliability through automated monitoring
2Productivity
If manual operation is used for divider doors, then ease of operation is maintained, but productivity deteriorates due to additional crew workload during critical phases
Solution Approach 1:
The door system performs self-service by automatically responding to avionics system commands during taxi, takeoff, and landing phases, freeing crew members from manual door operations and improving overall crew efficiency
Solution Approach 2:
The patent replaces manual mechanical door operation with an automated electromechanical system controlled by avionics, substituting crew physical action with automated motor-driven operation while maintaining ease of use through system intelligence
3Reliability
If automated system is implemented, then reliability is improved through consistent door opening, but device complexity increases due to addition of motor, limit switches, and avionics integration
Solution Approach 1:
The system leverages the existing multi-functional avionics system already present in modern aircraft for flight phase detection and control, allowing the door automation to utilize existing sensors and processors rather than requiring entirely separate dedicated systems
Solution Approach 2:
The limit switches serve as intermediaries between the mechanical door position and the electronic control system, providing simple binary feedback signals that bridge the physical and digital domains without requiring complex sensing mechanisms
Data Source
AI summary
A system for an automated cabin-divider door for an aircraft includes a door, a motor for moving the door to an open position, a limit switch configured to detect when the door is in a fully open position and to stop the motor, and electronics coupling the motor and the limit switch to an avionics system. The avionics system determines when the door is to be opened and provides a signal to the motor for moving the door to the fully open position. A method for automatically opening the cabin-divider door includes determining whether the aircraft is on the ground or in flight, determining whether the aircraft is taxiing, and determining whether the aircraft is in a final phase of approach. When the aircraft is taxiing or in the final phase of approach, the method includes sending a command signal to the motor for opening the cabin-divider door.