Cabin Interior Device Control Without Avionics Integration
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Solution Overview
Problem
Modern aircraft cabin electric devices require significant oversight by cabin crew, increasing their workload, and existing solutions that integrate with aircraft avionics can be costly and compromise safety.
Innovation Solution
A system using an air pressure sensor and accelerometer to detect flight status, allowing passenger cabin interior devices to operate autonomously without avionics integration, switching between states based on flight conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If passenger cabin interior devices are integrated with aircraft avionics, then device control and monitoring capability is improved, but system complexity and safety risks increase
Solution Approach 1:
The system separates the flight status detection function from the passenger cabin device control. The flight status detector operates independently using air pressure sensor and accelerometer data, while the passenger cabin interior device responds to flight status information without being integrated into the avionics system. This segmentation reduces avionics complexity while maintaining control capability.
Solution Approach 2:
The flight status detector acts as an intermediary component that translates flight parameters (air pressure, acceleration) into flight status information that can control passenger cabin devices. This intermediary layer enables device control without direct avionics integration, simplifying the overall system architecture.
2Reliability
If passenger cabin interior devices are integrated with aircraft avionics, then system reliability is improved, but safety risks increase
Solution Approach 1:
The passenger cabin interior device control system is extracted from the critical aircraft avionics system. By using independent off-the-shelf components for flight status detection and device control, the patent eliminates the safety risks associated with avionics integration while maintaining sufficient reliability through flight status-based automated control.
3Productivity
If automated control of passenger cabin devices is implemented, then cabin crew workload is reduced, but device complexity increases
Solution Approach 1:
The passenger cabin interior device performs self-service by automatically switching operating states based on flight status information from the flight status detector. The device monitors flight status parameters and autonomously adjusts its operation without requiring cabin crew intervention, reducing workload while maintaining simple control architecture.
Solution Approach 2:
The system uses changes in flight status parameters (air pressure, acceleration) to trigger automated switching between device operating states. By basing control decisions on fundamental flight parameters rather than complex logic, the system achieves automation with minimal complexity increase.
4Productivity
If flight status based automated control is implemented, then cabin crew workload is reduced, but measurement precision requirements increase
Solution Approach 1:
The flight status detector uses universal sensing principles (air pressure measurement, acceleration detection) that are already well-established in aviation. By relying on these proven measurement techniques rather than requiring high-precision specialized sensors, the system achieves automated control without excessive measurement precision requirements.
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
Reduces cabin crew workload and enhances passenger comfort while maintaining aircraft safety by using off-the-shelf components that do not burden the avionics system, ensuring reliable operation and cost-effectiveness.
Implementation Method 1
a flight status detector, comprising an air pressure sensor for detecting air pressure within the cabin
Implementation Method 2
an accelerometer for detecting acceleration of the aircraft
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A system (12) for flight status based control of a device (14), arranged in a cabin (6) of an aircraft (2), comprises: a flight status detector (15), comprising an air pressure sensor (16) for detecting air pressure (pcab) within the cabin (6) and an accelerometer (18) for detecting acceleration of the aircraft (2), and a cabin interior device (14), coupled to the flight status detector (15). The flight status detector (15) is configured to determine a flight status of the aircraft (2) from first sensor data, received from the air pressure sensor (16), and second sensor data, received from the accelerometer (18). The cabin interior device (14) has at least two operating states and is configured to switch between operating states in response to information received from the flight status detector (15).