Touchless Gesture Control for Aircraft Overhead Bin Latches
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Solution Overview
Problem
The spread of pathogens in aircraft cabins due to shared contact surfaces on overhead bin latches poses a significant challenge in reducing the transmission of antigens during flights.
Innovation Solution
A touchless input system for overhead bins, comprising a touchless input sensor connected to a controller, which releases a latch mechanism upon detection of a user's gesture, ensuring the door opens without physical contact. The system includes features like a timer for gesture detection, output displays for status indicators, and integration with a server for controlling multiple bins and enforcing flight phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional latch mechanism is used for overhead bins, then the door can be securely closed and opened, but physical contact with the latch increases the risk of pathogen transmission
Solution Approach 1:
The patent replaces the traditional mechanical latch system with a touchless control system using sensors (optical, capacitive, or RFID) and actuators. The sensor detects gestures or proximity without physical contact, and the actuator releases the latch mechanism remotely, eliminating the need for users to touch the latch directly while maintaining secure door operation
Solution Approach 2:
The patent introduces an intermediary control system between the user and the latch mechanism. This intermediary system includes sensors that detect user intent through gestures or proximity, a controller that processes the detection signal, and an actuator that executes the latch release. This intermediary layer allows door operation without direct contact, reducing pathogen transmission risk
2Object-affected harmful factors
If a touchless sensor system is implemented, then physical contact with latches is eliminated, but the system complexity increases
Solution Approach 1:
The patent employs multi-functional components to reduce overall system complexity. The control system is designed to work across multiple overhead bin units with a single centralized controller that can manage several sensors and actuators. The sensor system can detect multiple types of inputs (gesture, proximity, RFID) using a unified detection mechanism, reducing the need for separate systems for each function
Solution Approach 2:
The patent combines multiple control functions into an integrated system. The controller unit merges sensor signal processing, actuator control, and safety logic into a single embedded system. Multiple sensors can be combined into one detection array, and the control logic for different overhead bins is merged into a centralized management system, reducing component count and simplifying installation
3Ease of operation
If gesture recognition is used for latch release, then touchless operation is achieved, but false activation from accidental gestures may occur
Solution Approach 1:
The patent requires a pre-defined specific gesture pattern to activate the latch release, such as a particular hand motion sequence, sustained proximity duration, or specific RFID tap pattern. This preliminary action requirement ensures that only intentional gestures trigger the mechanism, filtering out accidental movements while maintaining touchless operation
Solution Approach 2:
The patent incorporates feedback mechanisms where the system provides visual or audible confirmation when a gesture is detected but not yet executed. The controller monitors the gesture continuously and only activates the latch when the complete predefined sequence is performed correctly. This feedback loop allows users to correct unintended gestures before activation occurs, improving reliability
Data Source
AI summary
A system comprises an overhead bin including a door configured to open and close an opening of the overhead bin for access to and securing of an interior space of the overhead bin. A latch mechanism operatively connects the opening of the overhead bin to the door of the overhead bin to secure the door to the opening in a closed position, and to release the door from the opening for access to the interior space. A touchless input sensor can be operatively connected to the latch mechanism and a controller can be operatively connected to the latch mechanism and the touchless input sensor.