Home Appliance Voice Recognition Using Intent Detection
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Solution Overview
Problem
Existing home appliances require users to explicitly utter a trigger command before initiating voice recognition, which can be inconvenient and inefficient.
Innovation Solution
A home appliance system that detects user actions, such as opening a door, to predict the intent to use voice recognition, automatically entering the voice recognition mode without needing a trigger command, and outputs distinct audio signals to inform the user of this mode, using sensors, microphones, and processors to manage the voice recognition process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the home appliance operates in voice recognition mode only when a trigger command is input, then power consumption is reduced by keeping components off in standby mode, but user convenience deteriorates due to the need for explicit trigger commands
Solution Approach 1:
The home appliance performs preliminary detection of user actions (door opening, approach detection) before entering voice recognition mode. This preliminary action allows the system to anticipate user intent and prepare for voice recognition, eliminating the need for explicit trigger commands while maintaining energy efficiency by only activating components when user presence is detected.
Solution Approach 2:
The system uses sensors to automatically detect user actions and self-trigger voice recognition mode without requiring manual activation. The appliance serves itself by monitoring user behavior patterns and autonomously transitioning to voice recognition mode, improving convenience while managing power consumption through intelligent detection rather than continuous operation.
2Ease of operation
If the home appliance continuously monitors for user actions to enable automatic voice recognition mode, then user convenience is improved by eliminating trigger commands, but power consumption increases due to continuous sensor operation
Solution Approach 1:
Instead of continuous monitoring, the system employs periodic detection cycles where sensors are activated at intervals to detect user actions. This periodic operation maintains the ability to detect user intent and trigger voice recognition mode while significantly reducing power consumption compared to continuous monitoring, as components remain off between detection cycles.
3Loss of information
If distinct audio signals are output for different events (user action detection vs. trigger command), then information clarity is improved, but device complexity increases due to multiple audio signal processing paths
Solution Approach 1:
The system applies local quality by providing different audio feedback signals for different triggering events. When a user action is detected, a specific audio signal is output, while when a trigger command is input, a different audio signal is provided. This localized differentiation enhances information clarity by helping users understand how voice recognition mode was activated, while the complexity is managed by implementing these as distinct but parallel processing paths in the audio output module.
Data Source
AI summary
A home appliance is provided. The home appliance includes a sensor, a microphone, a speaker, and a processor. The processor is configured to, based on one of a first event wherein a user action is detected through the sensor or a second event wherein a trigger command for initiating a voice recognition mode is input through the microphone occurring, operate in the voice recognition mode, and control the speaker to output an audio signal corresponding to the event occurred, and the audio signal is an audio signal set differently for each of the first event and the second event.