V2V Risk Warning Verification Using ADAS Object Detection

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Solution Overview

Problem

Vehicular ad-hoc networks (VANETs) are vulnerable to Sybil attacks that generate false V2V information, leading to unreliable risk warnings that can compromise vehicle safety.

Innovation Solution

A vehicle-mounted electronic device with a processor and communication circuit unit verifies risk warnings by comparing them with object detection results from an advanced driver assistance system, using predefined conditions to determine trustworthiness and adjust driving behavior accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If risk warnings from inter-vehicle network are accepted without verification, then response speed is improved, but reliability deteriorates due to false warnings from Sybil attacks

Engineering Contradiction:

Improveresponse speedVSAvoidreliability

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system performs preliminary object detection using the advanced driver assistance system before accepting risk warnings from the inter-vehicle network. This preliminary action creates a baseline of expected objects that can be used to verify subsequent risk warnings, allowing the system to quickly reject false warnings without complex real-time verification processes.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The advanced driver assistance system acts as an intermediary between the inter-vehicle network and the risk warning processing. It independently detects objects and provides a reference framework that mediates the verification of risk warnings, enabling fast rejection of false warnings while maintaining system reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If comprehensive verification of risk warnings is performed, then reliability is improved, but computational load increases

Engineering Contradiction:

ImprovereliabilityVSAvoidcomputational load

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs partial verification by checking only the essential elements of risk warnings against the object detection results. Rather than进行全面 verification of all warning attributes, it focuses on key parameters like object presence and basic characteristics, achieving sufficient reliability with reduced computational effort.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system extracts only the critical verification elements from risk warnings and compares them against the object detection results. By taking out and focusing on the essential verification components rather than processing the entire warning data structure, the system maintains reliability while reducing computational load.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If comprehensive verification of risk warnings is performed, then reliability is improved, but processing time increases

Engineering Contradiction:

ImprovereliabilityVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The advanced driver assistance system performs preliminary object detection and creates a reference framework before risk warning verification is needed. This preliminary action eliminates the need for time-consuming real-time analysis during verification, allowing fast comparison and decision-making while maintaining high reliability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The verification process focuses on partial checking of essential warning elements rather than comprehensive analysis of all warning attributes. This selective verification approach maintains reliability by checking critical parameters while significantly reducing processing time through simplified comparison logic.

Inventive Principle:

Principle #16Partial or excessive action

4Reliability

If false risk warnings are ignored, then reliability is improved, but safety may be compromised by ignoring true warnings

Engineering Contradiction:

ImprovereliabilityVSAvoidsafety

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system uses feedback from the advanced driver assistance system's continuous object detection to verify risk warnings. The feedback mechanism compares warned objects against independently detected objects, allowing the system to confidently ignore false warnings while maintaining sensitivity to true warnings, thus improving reliability without compromising safety.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12466395B2Method for identifying false risk warning in inter-vehicle network and vehicle-mounted electronic device using the same

Publication Date: 2025.11.11 WISTRON CORP

AI summary

A method of identifying a false risk warning for an inter-vehicle network includes: in response to obtaining a first risk warning based on the inter-vehicle network, determining whether a second risk warning corresponding to the first risk warning based on an object detection operation is obtained; in response to determining that the second risk warning is obtained, determining that the first risk warning is trustworthy; in response to determining that the second risk warning is not obtained, determining whether the first risk warning is trustworthy based on the object detection operation; in response to determining that the first risk warning is trustworthy, adjusting a driving behavior according to the first risk warning or the second risk warning; and ignoring the first risk warning in response to determining that the first risk warning is not trustworthy.