Dynamic Road Sign Personalization via V2I Vehicle Data

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Solution Overview

Problem

Conventional road signs are static and unable to adapt or present targeted information to vehicles or occupants based on their characteristics, leading to ineffective communication and missed opportunities for personalized advertising or safety warnings.

Innovation Solution

A system that detects vehicle proximity and obtains operating characteristics and occupant data via vehicle-to-infrastructure communications, allowing for the presentation of personalized information on digital billboards, including targeted media or generalized safety warnings, based on vehicle speed, occupant demographics, and traffic conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional static road signs are used, then device complexity is low, but adaptability to different vehicles and occupants is poor

Engineering Contradiction:
ImproveadaptabilityVSAvoidcomplexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The road sign system transitions from static to dynamic by continuously changing displayed information based on real-time vehicle characteristics and occupant data received through V2I communications, enabling adaptation to different users while maintaining a relatively simple overall architecture

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The road sign infrastructure serves multiple functions: displaying general traffic information, presenting personalized advertisements, delivering safety warnings, and providing travel recommendations, all through a single multi-functional platform that communicates with various vehicle types

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

2Productivity

If personalized information is displayed on road signs, then advertising effectiveness increases, but information privacy risks increase

Engineering Contradiction:
Improveadvertising effectivenessVSAvoidprivacy risks
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

Personalized information is displayed locally and temporarily only to the specific vehicle that provided the characteristic data, with the road sign controller matching incoming vehicle data to corresponding personalized content, ensuring that advertisements and warnings are targeted only to relevant users without exposing other vehicles' private information

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The road sign controller acts as an intermediary that receives vehicle characteristic data through V2I communications, processes this information, and displays personalized content without directly accessing or storing sensitive occupant data, thereby mediating between data collection and privacy protection

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If real-time vehicle data is collected via V2I communications, then personalization accuracy improves, but data acquisition complexity increases

Engineering Contradiction:
Improvepersonalization accuracyVSAvoiddata acquisition complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Vehicles automatically transmit their own characteristic data (speed, acceleration, route information) through onboard V2I communication modules, eliminating the need for external sensors or manual data collection, thereby achieving high personalization accuracy while keeping the infrastructure relatively simple

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12165174B2Systems and methods for dynamic road sign personalization
Publication Date: 2024.12.10 TOYOTA MOTOR ENG & MFG NORTH AMERICA INC
  • US12165174B2 patent drawing
  • US12165174B2 patent drawing
  • US12165174B2 patent drawing

AI summary

Systems and methods are provided for presenting personalized information to one or more vehicle occupants as a vehicle approaches and/or passes a road sign. Characteristics of a vehicle, e.g., operating conditions, characteristics of the one or more vehicle occupants, e.g., age, demographic, driving record, purchase history, etc. and/or road conditions, e.g., weather-related road conditions, current traffic conditions, etc., may be obtained. Information relevant to the one or more vehicle occupants based on one or more of these characteristics/conditions may presented to the one or more vehicle occupants. In scenarios where the presentation of personalized information is unwanted/unwarranted, more generalized information and/or safety warnings or recommendations can be presented.