Driver Alertness Detection System for Adaptive Vehicle Control

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Solution Overview

Problem

Current systems fail to effectively monitor a driver's alertness and adapt vehicle settings accordingly, potentially leading to unsafe driving conditions when a driver is drowsy or not alert enough to operate the vehicle safely.

Innovation Solution

A driver alertness detection system that communicates with various vehicle modules to activate or deactivate autonomous driving based on the driver's alertness level, using data from wearable devices, smartphones, and driver status monitors to adjust vehicle settings and control systems such as adaptive cruise control, lane keep assist, and notifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the driver alertness detection system activates autonomous drive mode when alertness is low, then driving safety is improved, but the driver's operational control and decision-making authority deteriorate

Engineering Contradiction:
Improvedriving safetyVSAvoiddriver control authority
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system dynamically transitions between manual and autonomous drive modes based on the driver's real-time alertness level. When alertness drops below a threshold, the system automatically switches to autonomous mode, and when alertness recovers, it returns to manual mode, creating a dynamic adaptation to driver state

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system continuously monitors driver alertness through sensors and biometric data, providing feedback to the control module. This closed-loop feedback mechanism enables real-time detection of alertness changes and automatic adjustment of drive mode accordingly

Inventive Principle:
Principle #23Feedback

2Reliability

If the system continuously monitors driver alertness and automatically adjusts drive mode, then driving safety is improved, but system complexity and computational requirements worsen

Engineering Contradiction:
Improvedriving safetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system divides alertness monitoring into discrete measurable parameters such as eye closure duration, blink frequency, head position, and biometric signals. Each parameter is independently monitored and evaluated against predefined thresholds to determine overall alertness level

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system uses a single integrated control module that handles multiple functions: collecting data from various sensors, analyzing alertness levels, determining drive mode status, and controlling vehicle systems. This multi-functional approach reduces overall system complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9925872B1System for monitoring driver alertness and adapting vehicle settings thereto
Publication Date: 2018.03.27 DENSO INTERNATIONAL AMERICA INC
  • US9925872B1 patent drawing
  • US9925872B1 patent drawing
  • US9925872B1 patent drawing

AI summary

A driver alertness detection system. The system is configured to activate an autonomous drive module of the vehicle to autonomously drive the vehicle when the measured alertness level of the driver is less than a predetermined threshold, and deactivate the autonomous drive module of the vehicle to permit manual driving when the measured alertness level of the driver is equal to or greater than the predetermined threshold.