In-Vehicle Driver Awareness Testing With Dialogue Tree Intervention

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

There is a risk of drivers falling asleep or becoming distracted while driving, posing dangers not only to themselves but also to other road users, as existing technologies have not effectively addressed the need for real-time awareness testing and intervention.

Innovation Solution

The system initiates a structured conversation with the driver using short dialogue trees, incorporating AI parsing and context understanding to determine sleepiness and engage the driver through cognitive behavioral therapy methods, with sensors monitoring driver states and triggering conversations when necessary.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the system initiates structured conversations with the driver using dialogue trees, then driver engagement and alertness are improved, but system complexity and processing requirements increase

Engineering Contradiction:
Improvedriver alertnessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The conversation system is divided into multiple dialogue trees, each representing a specific topic or scenario. The controller selectively activates appropriate dialogue trees based on driver state and context, breaking down the complex task of maintaining driver alertness into manageable, modular conversation modules that can be independently managed and optimized.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system pre-processes and stores multiple dialogue trees in memory before they are needed during actual driver interaction. By having conversation templates and response patterns ready in advance, the system reduces real-time processing complexity while maintaining the ability to engage drivers in meaningful conversations that improve alertness.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If AI parsing and context understanding are used to determine driver sleepiness, then accuracy of driver state detection is improved, but computational load and processing time increase

Engineering Contradiction:
Improvedriver state detection accuracyVSAvoidcomputational load
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system employs an AI parser as an intermediary layer between raw sensor data and driver state determination. This parser translates complex sensor inputs and conversation responses into simplified driver state indicators, reducing the computational burden on the main controller while maintaining high detection accuracy through specialized processing algorithms.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The AI parsing process focuses on extracting only the most critical features from sensor data and conversation responses that are relevant to determining driver sleepiness. Rather than analyzing all possible data aspects, the system selectively processes key indicators, reducing overall computational load while maintaining sufficient accuracy for safety-critical driver state monitoring.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If sensors continuously monitor driver states to trigger conversations, then real-time driver awareness testing is improved, but energy consumption and system complexity increase

Engineering Contradiction:
Improvereal-time awareness testingVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

Instead of continuous monitoring, the system implements periodic driver state assessments triggered at appropriate intervals or in response to specific events during conversation. Sensors activate and collect data only when needed for dialogue initiation or state verification, reducing energy consumption while maintaining effective real-time monitoring through strategically timed measurements rather than constant observation.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS12162498B2Systems and methods for testing driver awareness within a vehicle and/or intervening during a possible crisis
Publication Date: 2024.12.10 NISSAN MOTOR CO LTD
  • US12162498B2 patent drawing
  • US12162498B2 patent drawing
  • US12162498B2 patent drawing

AI summary

Systems and methods for testing driver awareness within a vehicle are disclosed herein. In an embodiment, the system includes an audio device, a memory, and a controller. The audio device is configured to output audible sentences to a driver of the vehicle and receive audible responses from the driver. The memory stores a plurality of dialog trees, each dialogue tree triggering a plurality of audible sentences. The controller is programmed to (i) cause the audio device to output a first audible sentence to the driver, (ii) receive response data relating to a first audible response provided by the driver to the audio device, (iii) select a dialogue tree of the plurality of dialogue trees based on the response data, and (iv) cause the audio device to output a plurality of second audible sentences from the selected dialogue tree.