Driver Assistance Conversation Alerts for Drowsiness Habituation

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Solution Overview

Problem

Despite advancements in semi-autonomous driving, drivers remain at risk of drowsiness and distraction during long driving sessions, with existing alert systems becoming ineffective due to habituation, necessitating a more innovative approach to maintain attention and safety.

Innovation Solution

A data processing device incorporating a biosensor, conversation data generation unit, and augmented reality functions that use a classifier to detect biological and preference information to generate conversation data, providing alerts and stimulating the driver through conversation, thereby reducing stress and maintaining attention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional warning beeps or flashing lights are used to alert drivers, then driver alertness can be improved temporarily, but the alerting effect deteriorates over time due to habituation

Engineering Contradiction:
Improvealerting effectivenessVSAvoidduration of alerting effect
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The system dynamically changes the type and characteristics of alerts based on detected driver state and historical data. Instead of using static warning beeps or flashing lights, the system adapts alert patterns (visual, auditory, haptic) in real-time to maintain effectiveness and prevent habituation, thereby extending the duration of alerting effect.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes multiple parameters of alerts including timing, intensity, modality (visual/auditory/haptic), and content based on driver drowsiness detection results and personal preferences. This multi-parameter adaptation prevents the driver from becoming accustomed to a single alert pattern, maintaining reliability over extended periods.

Inventive Principle:
Principle #35Parameter changes

2Stress or pressure

If autonomous driving control is implemented, then driver stress from continuous monitoring is reduced, but driver attention and readiness for manual intervention deteriorate due to reduced engagement

Engineering Contradiction:
Improvedriver stressVSAvoiddriver attention
Core Design Contradiction:
Stress or pressureVSReliability

Solution Approach 1:

The system implements periodic detection of driver state (drowsiness, attention level) and delivers periodic alerts or conversations at strategically timed intervals. This periodic engagement maintains driver attention and readiness for manual intervention while allowing periods of reduced stress during autonomous operation.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system continuously monitors driver physiological signals (via biosensors) and behavioral indicators, then provides feedback through adaptive alerts and conversations. This closed-loop feedback mechanism ensures the driver remains engaged and ready for manual intervention while managing stress levels during autonomous driving.

Inventive Principle:
Principle #23Feedback

3Device complexity

If generic alert systems are used, then implementation complexity is low, but effectiveness in maintaining driver attention deteriorates due to lack of personalization

Engineering Contradiction:
Improvesystem complexityVSAvoidattention maintenance effectiveness
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system automatically learns and adapts to individual driver preferences, physiological characteristics, and response patterns without requiring manual configuration. The classifier and machine learning components enable the system to self-optimize alert strategies for each driver, maintaining high effectiveness while minimizing the complexity of manual setup and adjustment.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20230347902A1Data processing system, driver assistance system, data processing device, and wearable device
Publication Date: 2023.11.02 SEMICON ENERGY LAB CO LTD
  • US20230347902A1 patent drawing
  • US20230347902A1 patent drawing
  • US20230347902A1 patent drawing

AI summary

A novel data processing device is provided. The data processing device includes a conversation data generation unit, an image processing unit, a display device, an imaging device, an operation unit, a biosensor, a speaker, and a microphone. The conversation data generation unit includes a classifier that has learned preference information of a user, and the biosensor detects the biological information of the user who wears the data processing device. The imaging device captures a first image. When a designated first object is detected in the first image, the operation unit generates a second image where a second object overlaps with part of the first object. The image processing unit displays the second image on the display device. The conversation data generation unit generates first conversation data based on the biological information and the preference information, and outputs the first conversation data from the speaker. The microphone obtains second conversation data corresponding to a response from the user and outputs the second conversation data to the classifier. The classifier has a function of updating the preference information with the use of the second conversation data.