Touchless Switch Interface With Progressive Proximity Feedback
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Solution Overview
Problem
Mechanical pushbutton switches are unreliable and pose health concerns due to frequent touching, necessitating a touchless alternative that provides intuitive user feedback for effective adoption.
Innovation Solution
A touchless switch interface system using proximity sensors and indicator lights, which progressively activate and deactivate based on the presence and movement of a trigger agent, providing visual and audible feedback to guide user activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical pushbutton switches are used, then the interface is simple and easy to manufacture, but the reliability is limited and health concerns arise from frequent touching
Solution Approach 1:
The patent replaces mechanical pushbutton switches with a touchless interface using proximity sensors and indicator lights. The mechanical contact system is substituted with optical/electronic components that detect the presence of a trigger agent (finger or hand) without physical contact, thereby improving reliability and eliminating health concerns while maintaining operational simplicity
Solution Approach 2:
The patent introduces an intermediary system consisting of proximity sensors and indicator lights that mediate between the user and the switch function. The proximity sensor detects the trigger agent's presence, and the indicator lights provide feedback, creating an intermediate communication layer that eliminates direct mechanical contact while preserving the switching function
2Object-affected harmful factors
If mechanical pushbutton switches are used, then the device complexity is low, but health risks increase due to frequent touching
Solution Approach 1:
The patent eliminates the mechanical contact surface that causes health risks by substituting it with a touchless optical sensing system. The proximity sensor detects the trigger agent through electromagnetic fields or optical means without requiring physical contact, thereby removing the health hazard while adding electronic components
3Ease of operation
If touchless switch interface is implemented, then health risks are reduced and reliability is improved, but user feedback intuitiveness must be enhanced for successful adoption
Solution Approach 1:
The patent implements a feedback mechanism where indicator lights provide visual confirmation to the user about the switch's state and detection status. The lights change patterns to indicate when the trigger agent is detected, when activation is pending, and when the switch has been activated, making the touchless interface intuitive and easy to understand
Solution Approach 2:
The patent uses color changes in the indicator lights to communicate different states to the user. Different colors or lighting patterns indicate different operational states, providing intuitive visual feedback that helps users understand the system's response to their actions without requiring physical contact
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 replaces mechanical buttons with a reliable and intuitive touchless solution, enhancing user experience and reducing health risks by providing continuous visual and audible feedback during activation.
Implementation Method 1
a proximity sensor and a plurality of activatable indicator lights... detecting the trigger agent within a proximity threshold of the proximity sensor
Implementation Method 2
the activatable indicator lights comprise light emitting diodes (LEDs)
Data Source
AI summary
A method and system for guiding a trigger agent to activate a touchless switch having a proximity sensor and a plurality of activatable indicator lights. The method comprises detecting the trigger agent within a proximity threshold, activating at least one of the indicator lights according to a first indicator format, detecting a continuing presence of the trigger agent to progressively activate additional indicator lights as the trigger agent continues within the proximity threshold, detecting a retracting movement of the trigger agent away from the proximity sensor to progressively de-activate the activated indicator lights as the trigger agent retracts, and in response to detecting that the trigger agent has reached an activation time threshold, activating the touchless switch while activating the indicator lights according to a second indicator format.