Touchless Aircraft Cabin Light Control via Capacitive Sensor
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Solution Overview
Problem
Aircraft cabin surfaces, including passenger reading lights, pose a risk of pathogen transmission due to direct contact, necessitating a touchless control solution to reduce contact points and enhance safety.
Innovation Solution
A touchless light system comprising a light assembly, a light controller, and a touchless control panel with a projected capacitive sensor that detects user inputs without physical contact, allowing users to control light on/off, intensity, direction, and mode through a touchless control module and light controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If manual control of reading lights is implemented, then ease of operation is maintained, but pathogen transmission risk increases due to direct contact with control surfaces
Solution Approach 1:
The patent replaces mechanical contact-based control switches with a touchless sensor system that detects hand gestures and movements through electromagnetic fields or optical sensors. This substitution eliminates physical contact with control surfaces while maintaining intuitive control capabilities, directly resolving the contradiction between reducing pathogen transmission and preserving ease of operation
Solution Approach 2:
The patent introduces an intermediary detection system (touchless sensor) that mediates between the user and the light control system. The sensor detects gestures in the air space above the control panel and translates them into control commands, serving as a non-contact intermediary that prevents direct contact while enabling operation
2Object-affected harmful factors
If touchless control panels are implemented, then contact points are reduced, but device complexity increases due to additional sensors and control modules
Solution Approach 1:
The patent designs the touchless control panel to serve multiple functions: it can detect on/off commands, adjust light intensity levels, and potentially control other cabin systems. By making the control panel multi-functional, the patent reduces the need for separate control mechanisms for different functions, thereby limiting the increase in device complexity while achieving contactless operation
Solution Approach 2:
The patent combines the touchless sensor, control module, and light assembly into an integrated system where components share common housing and control logic. This merging of functions into a single integrated unit reduces the overall complexity compared to having separate touchless controls for each light assembly
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
The system effectively reduces contact points, enhancing passenger and crew safety by enabling touchless control of aircraft cabin lights, thereby minimizing the risk of pathogen transmission while providing intuitive control over light settings.
Implementation Method 1
the touchless sensor is configured to project an electromagnetic field over the surface of the touchless control panel
Data Source
Figure 1
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Figure 4A
AI summary
A touchless light system may comprise a light assembly, a light controller operably coupled to the light, and a touchless control panel configured to detect and interpret a user input and send an object detection signals to the light controller based on the user input. The light controller may be configured to send to a light command to the light assembly based on the object detection signal.