Vehicle Dialogue System Passenger Estimation
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Solution Overview
Problem
Conventional audio-video-navigation (AVN) devices in vehicles have small screens and buttons, making it inconvenient and unsafe for users to interact with them, especially while driving, as it requires users to take their hands off the wheel or look away from the road.
Innovation Solution
A dialogue system that recognizes user intent through dialogue, vehicle state information, and user information to provide necessary services, including identifying passengers and estimating changes in the number of passengers, using an input processor and result processor with natural language understanding algorithms to output pre-utterances for informing drivers about passenger activities at stop-over points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional AVN devices with small screens and buttons are used, then device complexity is reduced, but ease of operation deteriorates and safety deteriorates
Solution Approach 1:
The patent replaces mechanical button presses and manual screen interactions with voice-based dialogue commands. The dialogue system processes natural language inputs to control AVN functions, eliminating the need for physical button operations and improving ease of use while maintaining system functionality.
Solution Approach 2:
The patent introduces a dialogue system as an intermediary between the user and the AVN device controls. This mediator translates user intent expressed through speech into appropriate device commands, providing a more natural and safer interaction method without requiring direct manipulation of complex control interfaces.
2Reliability
If users manually operate AVN devices or view displays, then information accuracy is improved, but safety deteriorates due to distraction
Solution Approach 1:
The patent replaces manual visual verification and manual operation with voice-based dialogue interaction. The system processes and communicates information through speech, allowing users to maintain visual attention on the road while receiving accurate information and control capabilities through auditory and vocal channels.
3Measurement precision
If dialogue system uses basic speech recognition, then device complexity is reduced, but measurement precision deteriorates in recognizing user intent
Solution Approach 1:
The patent implements preliminary processing of dialogue context and user information before final intent recognition. The system prepares and analyzes multiple layers of information (speech patterns, context, user profiles) in advance to improve recognition accuracy, rather than relying on simple keyword matching or basic speech-to-text conversion.
Data Source
AI summary
A dialogue system for a vehicle may include: an input processor configured to receive a dialogue among occupants of the vehicle including a driver and at least one passenger, to detect vehicle operation information, to identify the at least one passenger based on the dialogue among the occupants or the vehicle operation information, to generate passenger number information which estimates a change in a number of passengers in the vehicle based on the dialogue among the occupants when the vehicle arrives at a stop-over point, and to acquire a pre-utterance message according to the passenger number information; and a result processor configured to output a pre-utterance according to the pre-utterance message.