Vehicle Navigation Apparatus Voice Destination Extraction
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Solution Overview
Problem
Existing vehicle navigation systems that rely on external communication for destination information suffer from delayed guidance due to communication time, potentially causing the vehicle to move in the wrong direction before receiving accurate directions.
Innovation Solution
A vehicle navigation apparatus that uses voice recognition to extract destination information from user input, providing tentative route guidance until accurate external information is received, leveraging voice recognition technology to convert voice data into text and identify specific keywords for destination extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If destination information is obtained through external communication, then the accuracy and up-to-date nature of guidance is improved, but the response time is delayed
Solution Approach 1:
The system performs preliminary voice recognition and destination extraction from the user's voice input while the external communication is being established. This preliminary processing allows the system to prepare guidance information in advance, reducing the effective response time when external confirmation is received.
Solution Approach 2:
The voice recognition system acts as an intermediary that bridges the time gap between user input and external communication completion. By extracting destination information from voice patterns during the communication delay, the system maintains responsiveness without sacrificing the accuracy of externally verified data.
2Measurement precision
If a large-scale database is installed in an external facility, then the precision of guidance information is improved, but the system complexity increases
Solution Approach 1:
The system extracts only the essential destination information from the user's voice input using voice recognition technology. By extracting only the necessary data elements (destination location, timing) rather than processing entire conversations or raw audio continuously, the system reduces processing complexity while maintaining guidance precision.
Solution Approach 2:
The external facility automatically processes the voice-transmitted destination information and generates guidance data without requiring manual intervention. This self-service capability reduces the operational complexity of managing the large-scale database system while maintaining high guidance precision.
Data Source
AI summary
A disclosed vehicle navigation apparatus enables the issuance of an accurate and quick guidance. Voice uttered by an occupant of a vehicle is collected by a voice collecting unit and transmitted to an external facility by a voice transmitting unit. The external facility generates destination information based on the received voice, and transmits the destination information back to a destination information receiving unit of the apparatus. Based on the received destination information, the apparatus issues a guidance. The apparatus further includes a destination extracting unit by which the voice collected by the voice collecting unit is subjected to voice recognition in order to extract a destination from the collected voice. A tentative guidance is then issued based on the extracted destination until the destination information is received by the destination information receiving unit from the external facility.