Map Data Version Synchronization in Driving Assistance Systems
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Solution Overview
Problem
When route guidance and driving assistance control are performed by different devices, there is a likelihood that the two map databases cannot be updated simultaneously, leading to malfunctions due to unmatched map data versions, causing issues in driving assistance control.
Innovation Solution
Implement a system where the driving assistance system and route guidance system communicate to ensure that map data versions match by obtaining driving assistance map data or route guidance map data from a map provider when versions do not match, allowing for consistent driving assistance on planned travel routes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If route guidance and driving assistance control are performed by different devices, then system functionality is improved, but map data version mismatch occurs causing malfunctions
Solution Approach 1:
The driving assistance system receives version information of route guidance map data from the route guidance system, compares it with the version of driving assistance map data, and obtains updated map data from the map provider when versions mismatch, ensuring continuous compatibility
Solution Approach 2:
The communication interface acts as an intermediary between the route guidance system and driving assistance system, enabling version information exchange and coordinated map data management to prevent mismatches
2Measurement precision
If map data is updated frequently to maintain accuracy, then map data accuracy is improved, but version mismatch between systems increases
Solution Approach 1:
The system continuously monitors map data versions through version information exchange between route guidance and driving assistance systems, enabling timely detection and correction of version mismatches while maintaining accuracy
Solution Approach 2:
The driving assistance system proactively obtains updated route guidance map data from the map provider when version mismatch is detected, preventing potential malfunctions before they occur
3Ease of manufacture
If separate map databases are used for route guidance and driving assistance, then data specialization is improved, but version synchronization becomes difficult
Solution Approach 1:
The system implements a feedback mechanism where the driving assistance system queries the route guidance system for version information and automatically synchronizes map data when mismatches are detected, simplifying the synchronization process
Solution Approach 2:
The communication interface provides universal functionality for version information exchange and coordinated map data management, enabling both systems to operate independently while maintaining synchronization
Data Source
AI summary
Driving assistance systems, methods, and programs accept an inputted planned travel route from the route guidance system, provide driving assistance of the vehicle on the planned travel route, based on driving assistance map data, and obtain, when versions of the route guidance map data and the driving assistance map data do not match each other, the driving assistance map data whose version matches the version of the route guidance map data from a map provider. Route guidance systems search for a planned travel route based on route guidance map data, provide guidance on the planned travel route, output the planned travel route to the driving assistance system, and obtain, when versions of the route guidance map data and the driving assistance map data do not match each other, the route guidance map data whose version matches the version of the driving assistance map data from a map provider.