User-interface system for a laundry appliance
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Solution Overview
Problem
Laundry appliances lack an efficient user-interface system that can accurately differentiate between a user intending to issue voice commands and a passerby, and fail to provide a seamless voice command control experience, especially when the interface is concealed behind a door.
Innovation Solution
A user-interface system for a laundry appliance featuring a door with an integrated audio interface, visual interface, and proximity sensor, where a microcontroller activates the interfaces only when a user is detected within a defined sensor field for a predetermined period, allowing for voice command reception and response through a microphone and display of messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user-interface system is always active to receive voice commands, then the responsiveness to user input is improved, but the energy consumption increases and false activation by passersby occurs
Solution Approach 1:
The proximity sensor performs preliminary detection to determine whether a user is approaching the appliance before activating the user-interface system. This preliminary action prevents false activation by passersby while ensuring the system is ready when a genuine user arrives, thus balancing responsiveness with energy efficiency
Solution Approach 2:
The system dynamically adjusts its activation state based on real-time proximity detection. The user-interface system transitions between active and inactive states depending on whether a user is detected in the proximity zone, optimizing energy consumption while maintaining responsiveness to actual users
2Measurement precision
If the user-interface system is always active to differentiate voice commands, then the accuracy of command recognition is improved, but the energy consumption increases
Solution Approach 1:
The proximity sensor performs preliminary detection to identify potential users before the voice processing system is activated. This ensures that the energy-intensive voice command differentiation processes are only executed when a genuine user is present, maintaining accuracy while reducing unnecessary energy consumption
Solution Approach 2:
The system uses the proximity sensor's detection capability to automatically determine when voice processing should be activated, eliminating the need for continuous monitoring and reducing energy consumption while maintaining accurate voice command recognition when needed
3Shape
If the interface components are concealed behind the door to maintain aesthetic appearance, then the visual uniformity is improved, but the accessibility of the interface is reduced
Solution Approach 1:
The door dynamically transitions between closed and open states based on user proximity and interaction. When a user approaches, the door automatically opens to reveal and provide access to the user-interface system, maintaining aesthetic appearance when idle while ensuring accessibility when needed
Solution Approach 2:
The proximity sensor provides feedback about user presence to the door control system, which then adjusts the door position accordingly. This feedback mechanism ensures the door opens automatically when a user is detected, reconciling the aesthetic benefit of concealment with the operational need for accessibility
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
Enables accurate activation of the user-interface system only when a user is present, providing a seamless voice command control experience and differentiating between intended voice commands and casual speech, while maintaining a uniform aesthetic with the interface concealed behind the door.
Implementation Method 1
A proximity sensor is coupled to the audio interface. The proximity sensor defines a sensor field that extends outward from a front surface of the door.
Implementation Method 2
The audio interface includes at least one microphone to receive a voice command
Data Source
AI summary
A laundry appliance includes a cabinet. A door is coupled to the cabinet. The door is operable between an opened position and a closed position. An audio interface is disposed on the door. The audio interface includes a microphone for receiving a voice command and a speaker for projecting an audio output. A visual interface is disposed on the door. The visual interface is configured to display a message in response to at least one of the voice command and the audio output. A microcontroller is disposed on the door. The microcontroller is operably coupled to the audio interface and the visual interface. A proximity sensor is configured to communicate sensed information to the microcontroller. The microcontroller is configured to activate at least one of the audio interface and the visual interface in response to the sensed information.