In-Vehicle Voice Recognition Feedback for Unclear Command States
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Solution Overview
Problem
Conventional voice recognition systems do not provide clear differentiation between cases where voice input is unrecognized and where the function associated with the voice input is unavailable, leading to user confusion.
Innovation Solution
A voice recognition apparatus that includes a controller capable of recognizing voice input and controlling associated functions, and outputs distinct notifications for cases where the voice input is unrecognized versus where the function is available but not activated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a conventional voice recognition system provides a single notification for unrecognized voice input, then the system structure remains simple, but the user cannot distinguish between recognition failure and function unavailability
Solution Approach 1:
The notification system is segmented into multiple distinct notification types: a first notification for recognition failure and a second notification for function unavailability. This segmentation allows the system to provide differentiated information feedback without requiring complex additional components, as each notification type corresponds to a specific system state.
Solution Approach 2:
The system implements differentiated feedback mechanisms where the notification content varies based on the system's internal state. When voice input is unrecognized, a specific feedback message is provided; when the function is unavailable, a different feedback message is provided. This feedback principle enables clear information transmission while maintaining relatively simple system architecture.
2Ease of operation
If the system provides detailed differentiation between recognition failure and function unavailability, then user understanding is improved, but the notification system becomes more complex
Solution Approach 1:
The notification system divides feedback into distinct segments corresponding to different system states. By segmenting the notification types (first notification for recognition failure, second notification for function unavailability), the system achieves clear user understanding without requiring substantial structural complexity, as each segment maps to a specific conditional branch in the system logic.
Solution Approach 2:
Different notification qualities are applied locally to different system states. The notification content and characteristics are tailored to the specific situation: one type of notification for recognition issues and another type for function availability issues. This local differentiation improves user understanding while keeping the overall system relatively simple through targeted rather than universal complexity.
Data Source
AI summary
A voice recognition apparatus includes a controller configured to recognize voice input from an occupant of a vehicle, and control a function according to the recognized voice input, the controller outputting notification that differs between a case in which the controller has not been able to recognize the voice input and a case in which the controller has recognized the voice input and the function is not available.