Car2X Wrong-Way Driving Detection Using Opposing Traffic Data

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Solution Overview

Problem

Existing methods for detecting wrong-way driving are not always reliable and often result in delayed warnings to other road users, as they rely on external sources or limited sensor data.

Innovation Solution

A method utilizing Car2X communication, where vehicles share direction information with each other, assuming a vehicle is driving in the wrong direction if a predetermined number of nearby vehicles are traveling oppositely, combined with traffic sign recognition and navigation data to enhance detection accuracy and speed up warnings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If external sources (other vehicles or roadway cameras) are used to detect wrong-way driving, then detection coverage is provided, but detection reliability is insufficient and warning time is delayed

Engineering Contradiction:
Improvedetection reliabilityVSAvoidwarning delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements a feedback mechanism where vehicles continuously exchange direction of travel information through Car2X communication. Each vehicle receives direction information from multiple other vehicles, compares it with its own navigation data, and adjusts its detection conclusion based on this feedback loop. This collective feedback from the vehicle network significantly improves detection reliability and reduces warning delays compared to isolated external detection methods.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If a predetermined number of direction information items from multiple vehicles is required, then detection accuracy is improved, but system complexity increases

Engineering Contradiction:
Improvedetection accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent utilizes the existing Car2X communication infrastructure, which is already deployed for general vehicle-to-vehicle communication, to also serve wrong-way driving detection. This multi-functional use of the communication system avoids the need for dedicated detection hardware or complex specialized systems, thereby improving detection accuracy through multiple data sources while keeping system complexity manageable.

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

3Productivity

If Car2X communication is used for vehicle-to-vehicle direction information exchange, then detection speed and reliability are improved, but communication data processing complexity increases

Engineering Contradiction:
Improvedetection speedVSAvoiddata processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent extracts only the essential direction of travel information from Car2X communication data, comparing it with navigation system data to determine wrong-way driving. By focusing on extracting and processing only the critical directional components rather than analyzing all communication data, the system achieves fast detection while keeping data processing complexity manageable.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4307274A1Method for detecting driving against a statutory direction of travel
Publication Date: 2024.01.17 VOLKSWAGEN AG
  • EP4307274A1 patent drawingFigure 1
  • EP4307274A1 patent drawingFigure 1~2
  • EP4307274A1 patent drawingFigure 3

AI summary

The invention relates to a method for detecting driving of a vehicle (10) against the statutory direction of travel, wherein the vehicle (10) communicates with further vehicles (14) by means of Car2X communication (12). In a method for detecting the driving of a vehicle (10) against the statutory driving direction, in which the disadvantages from the prior art are avoided it is intended that from further vehicles (14) communicating with the vehicle (10) information about the direction of travel of the respective further vehicles (14) is transmitted at least to the vehicle (10), that on reaching a predetermined number of direction of travel information from further vehicles (14) having an opposite relative direction of travel compared to the vehicle (10), it is assumed that the vehicle (10) is moving against the statutory direction of travel.