Navigation Guidance Based on Driver State Events

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Solution Overview

Problem

Existing advanced driver assistance systems (ADAS) struggle to effectively reduce driver drowsiness and distraction, particularly in situations like long-duration driving or scenic routes where these issues are more prevalent.

Innovation Solution

The implementation of methods and systems that generate navigation guidance based on detected driver state events, using data from ADAS to identify and tag events like drowsiness or distraction with location and time, and then statistically group these events to recommend routes that avoid high-incidence areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ADAS performs driver monitoring and takes escalating actions (alerts, lane-keeping assistance, slowing, stopping), then driver safety is improved, but the system complexity and intervention frequency increase

Engineering Contradiction:

Improvedriver safetyVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces navigation guidance as an intermediary measure between passive monitoring and active driver assistance interventions. By providing route recommendations that avoid high-risk areas (scenic routes, long unchanging roads), the system addresses driver drowsiness and distraction before they require escalated ADAS actions, thereby improving safety while reducing system complexity and intervention frequency

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary analysis of driver state events and location data to identify high-risk areas before the driver encounters them. By proactively generating navigation guidance that routes around identified risk zones, the system prevents driver drowsiness and distraction from developing to a point where complex ADAS interventions are needed

Inventive Principle:

Principle #10Preliminary action

2Reliability

If navigation guidance avoids areas with high driver state event clustering, then driver drowsiness and distraction are reduced, but travel time and route efficiency may increase

Engineering Contradiction:

Improvedriver alertnessVSAvoidtravel time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system dynamically changes navigation parameters (route selection, guidance timing) based on detected driver state events and their spatial-temporal clustering patterns. By adjusting route recommendations according to real-time driver monitoring data and historical event clustering, the system optimizes the balance between maintaining driver alertness and minimizing travel time penalties

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system applies partial route modifications rather than complete route changes. Instead of always avoiding high-risk areas entirely, the navigation guidance selectively adjusts routes to minimize exposure to clustered driver state events while accepting some travel through lower-risk zones, thereby reducing travel time overhead while still improving driver alertness

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250067570A1Methods and systems for navigation guidance based on driver state events

Publication Date: 2025.02.27 HARMAN BECKER AUTOMOTIVE SYST GMBH

AI summary

Disclosed herein are systems and methods for generating and displaying navigation guidance by utilizing data acquired by an advanced driver assistance system (ADAS) for driver behavior prediction and route planning. In embodiments, a method comprises generating navigation guidance based on a plurality of driver state events detected via an ADAS, and outputting the navigation guidance via a navigation system, wherein the navigation guidance comprises at least one of a map layer and a route recommendation.