Vehicular Data Conversion Device for Secure Transmission

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Solution Overview

Problem

Existing technologies are insufficient in enhancing the security performance of vehicle data, as highly confidential data can be directly accessed and misused when transmitted outside the vehicle, leading to potential manipulation or misuse.

Innovation Solution

A vehicular data conversion apparatus and method that acquires vehicle data, processes it based on classification levels, and outputs the data after applying appropriate data processing methods such as resolution reduction, update cycle modification, and encryption, ensuring secure transmission according to the access control list stored in the apparatus.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If vehicle data is directly transmitted outside the vehicle, then data accessibility and transmission speed are improved, but security performance deteriorates due to potential unauthorized access and misuse

Engineering Contradiction:
Improvedata accessibilityVSAvoidsecurity performance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a data transmission management device as an intermediary between the vehicle data transmission system and external devices. This mediator authenticates transmission requests, manages authentication information, and controls data transmission based on predefined policies, thereby enabling secure data sharing without direct access between vehicles and external devices

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments authentication management into multiple components: authentication information management unit, transmission request authentication unit, and policy-based access control. This segmentation allows each component to handle specific security tasks independently, improving both security performance and system manageability

Inventive Principle:
Principle #1Segmentation

2Reliability

If authentication technology is applied to vehicle data transmission, then security performance is improved, but system complexity increases due to additional authentication mechanisms

Engineering Contradiction:
Improvesecurity performanceVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The data transmission management device performs multiple functions including authentication information management, transmission request authentication, and policy enforcement within a single integrated system. This multi-functionality reduces overall system complexity compared to having separate authentication and transmission management systems

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

Solution Approach 2:

The system automatically manages authentication information and performs authentication checks without requiring manual intervention for each data transmission request. The automated authentication process reduces operational complexity while maintaining security

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3188068B1Vehicular data conversion device and vehicular data output method
Publication Date: 2020.10.21 DENSO CORP
  • EP3188068B1 patent drawingFigure 1
  • EP3188068B1 patent drawingFigure 2
  • EP3188068B1 patent drawingFigure 3

AI summary

A vehicular data conversion apparatus is provided with: an acquisition portion (16a) that acquires vehicle data from a vehicle; a first storage portion (18) that stores a data processing method for outputting the vehicle data to an outside of the vehicle according to a classification level corresponding to the vehicle data acquired by the acquisition portion; and an output portion (19) that outputs vehicle data converted in accordance with the data processing method stored by the first storage portion.