Map Data Storage Format Conversion for Vehicle Systems

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Solution Overview

Problem

Existing map data storage methods are limited to specific formats, preventing the editing of map data content in different formats within a subject vehicle's system.

Innovation Solution

Converting acquired map data content into a predetermined format compatible with the subject vehicle's system, storing it in a common database, and editing it based on update information to ensure compatibility and functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If map data content in a specific format is stored, then the map data can be used in the subject vehicle, but map data content in different formats cannot be edited

Engineering Contradiction:
Improveformat compatibilityVSAvoiddata processing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a format conversion unit as an intermediary component that converts map data from various external formats into the predetermined format required by the subject vehicle's system. This mediator enables compatibility with different source formats without requiring changes to the core system, resolving the contradiction between adaptability and complexity by isolating format handling in a dedicated conversion layer

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If map data in different formats is acquired from external sources, then more data sources can be utilized, but the data cannot be integrated into the subject vehicle's system

Engineering Contradiction:
Improvedata source compatibilityVSAvoiddata integration ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies parameter changes by systematically transforming the format parameters of acquired map data into the predetermined format structure. The format conversion unit modifies data structure parameters, encoding parameters, and organization parameters to match the subject vehicle's requirements, enabling seamless integration of externally sourced data while maintaining ease of operation through automated parameter transformation

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3640597B1Map data storage method and device
Publication Date: 2024.07.17 NISSAN MOTOR CO LTD
  • EP3640597B1 patent drawingFigure 1
  • EP3640597B1 patent drawingFigure 2
  • EP3640597B1 patent drawingFigure 3

AI summary

A map data storage method for acquiring map data content used in a subject vehicle and storing the map data content in a common database (110) by using a controller is provided. This method includes converting a format of the acquired map data content to a predetermined format that can be used in the subject vehicle, storing the map data content converted into the predetermined format in the common database (110), acquiring update information regarding the map data content stored in the common database (110), and editing the map data content in the predetermined format stored in the common database (110) on the basis of the acquired update information.