Vehicle User Setting Synchronization via Data Word Comparison

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Solution Overview

Problem

Existing vehicle systems face challenges in efficiently synchronizing user settings across vehicles and control centers due to high data transmission costs and capacity overload, especially when internet connections are restricted.

Innovation Solution

A method that uses data words, such as hashes or checksums, to represent user settings with a smaller volume of data, allowing for comparison and synchronization, even in cases where internet connectivity is limited, by determining and comparing first and second data words between local and remote systems to establish up-to-dateness and reduce data transmission requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complete user settings data are transmitted for synchronization, then synchronization accuracy is improved, but data transmission volume and costs increase

Engineering Contradiction:

Improvesynchronization accuracyVSAvoiddata transmission volume

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential identification information (data words) from the complete user settings, separating the synchronization verification function from the full data transmission. This allows accurate synchronization checking using minimal data volume.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates simplified copies (data words) of the complete user settings that retain the essential identifying characteristics. These compact representations enable synchronization verification without transmitting the full original data sets.

Inventive Principle:

Principle #26Copying

2Reliability

If complete user settings data are transmitted for synchronization, then data completeness is improved, but transmission time increases

Engineering Contradiction:

Improvedata completenessVSAvoidsynchronization time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by transmitting only the necessary portion (data words) required for synchronization verification rather than the complete user settings, achieving sufficient synchronization with reduced time investment.

Inventive Principle:

Principle #16Partial or excessive action

3Quantity of substance

If data words are used to represent user settings, then data transmission volume is reduced, but data representation complexity increases

Engineering Contradiction:

Improvedata transmission volumeVSAvoiddata processing complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical approach of transmitting and comparing complete data sets with an information-theoretic approach using hash functions and data words. This substitution reduces computational complexity despite the introduction of cryptographic functions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10800365B2Method, device, vehicle and central station for determining the actuality of a local user setting

Publication Date: 2020.10.13 VOLKSWAGEN AG

AI summary

A method, an apparatus, a vehicle and a control center for establishing an up-to-dateness of a local user setting. The method for a first information system establishes an up-to-dateness of a local user setting and includes determining a first data word based on the local user setting. The first data word is representable with a smaller volume of data than the local user setting. The method also provides the first data word for comparison with a second data word of a second information system. The second data word is based on a remotely stored user setting. The method further establishes the up-to-dateness of the local user setting if the first data word matches the second data word.