Vehicle Dialogue System Voice Control Safety

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Solution Overview

Problem

Existing audio-video-navigation (AVN) devices in vehicles face challenges due to small screens and buttons, making it inconvenient and unsafe for users to interact with them during driving, as they require users to take their hands off the wheel and look away from the road.

Innovation Solution

A dialogue system that recognizes user intentions through speech and contextual information, including vehicle and environmental data, to provide services without the need for manual input, using an input processor, dialogue managing processor, and result processor to determine and execute actions safely and efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a small screen and small button are provided in the AVN device, then the device can be compact and installed in the vehicle, but the user convenience and safety deteriorate because users must take their hands off the steering wheel and look away from the road to operate it

Engineering Contradiction:

Improvedevice sizeVSAvoiduser convenience

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The patent replaces mechanical input methods (buttons, touchscreen) with voice recognition technology. The dialogue system processes user speech inputs to control AVN functions, eliminating the need for manual button pressing or touchscreen interaction, thereby maintaining compact device size while significantly improving ease of operation and driving safety

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a dialogue managing processor as an intermediary between the user and the AVN system. This processor interprets user intent from speech inputs and translates them into appropriate control commands, serving as a mediator that enables natural language interaction without requiring direct manual operation of physical controls

Inventive Principle:

Principle #24Intermediary (Mediator)

2Volume of moving object

If a small screen and small button are provided in the AVN device, then the device can be compact and installed in the vehicle, but the user safety deteriorates because users must look away from the road to check visual information and operate devices

Engineering Contradiction:

Improvedevice sizeVSAvoiddriving safety

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The patent replaces visual and manual interaction mechanisms with acoustic interaction (voice recognition). Users can operate the AVN system through speech without visually attending to the device or removing hands from the steering wheel, thereby maintaining compact form factor while significantly improving driving safety and reducing distraction

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The dialogue system enables the AVN device to understand and execute user commands autonomously through speech recognition. The system processes user intent and performs actions without requiring manual confirmation or visual verification, allowing users to maintain focus on the road while the system handles operations independently

Inventive Principle:

Principle #25Self-service

3Device complexity

If the dialogue system uses only basic speech recognition, then the system complexity is low, but the accuracy of recognizing user intention deteriorates

Engineering Contradiction:

Improvesystem complexityVSAvoidintention recognition accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent divides the intention recognition process into multiple processing stages: speech input reception, keyword matching, user intent classification, and action determination. The dialogue managing processor handles different aspects of interpretation separately, allowing the system to achieve high recognition accuracy through structured multi-stage processing while maintaining manageable system complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The dialogue managing processor serves multiple functions: it performs speech recognition, interprets user intent, determines appropriate actions, and manages dialogue flow. This multi-functional approach consolidates complexity into a single processing unit that handles various interpretation tasks, improving intention recognition accuracy without proportionally increasing overall system complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10839797B2Dialogue system, vehicle having the same and dialogue processing method

Publication Date: 2020.11.17 HYUNDAI MOTOR CO LTD

AI summary

A dialogue system includes: an input processor extracting an action corresponding to a user's utterance; a storage storing information value of context information comprising at least one of vehicle state information related to a vehicle state, and driving environment information related to the driving environment of the vehicle; a dialogue managing processor acquiring a parameter value of a condition determination parameter used to determine whether the action corresponding to the user's utterance is executable, from the storage, the dialogue managing processor determining an action to be executed based on the parameter value of the condition determination parameter, the dialogue managing processor acquiring a parameter value of action parameter used to execute the determined action, from the storage; and a result processor generating a response to execute the determined action by using the acquired parameter value of action parameter.