Vehicle Authentication Sync for Multi-User Preference Access
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Solution Overview
Problem
Conventional authentication systems face challenges in enabling convenient vehicle utilization by multiple users, particularly when a single vehicle is shared among different individuals or when a user switches between multiple vehicles, as they require manual adjustments and lack seamless integration of user preferences and settings.
Innovation Solution
An authentication system with in-vehicle and vehicle-exterior units that synchronize user and vehicle-related information through shared and non-shared storage areas, allowing bi-directional data synchronization and authentication based on both local and remote data, enabling flexible and efficient access to vehicle functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If user related information is stored only in the in-vehicle unit, then data access speed is fast, but data consistency across multiple devices cannot be maintained
Solution Approach 1:
The storage system is segmented into two distinct parts: local storage in the in-vehicle unit for fast access, and remote storage in the vehicle-exterior apparatus for data consistency. This segmentation allows each component to fulfill its specific function optimally while working together as a unified system.
Solution Approach 2:
The vehicle-exterior apparatus acts as an intermediary that stores user related information and synchronizes it with the in-vehicle unit. This intermediary ensures data consistency across multiple devices while allowing the in-vehicle unit to maintain fast local access to frequently used data.
2Device complexity
If manual adjustments are required for each user, then system complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The system automatically performs synchronization of user related information between the vehicle-exterior apparatus and the in-vehicle unit without requiring manual intervention from users. This self-service mechanism maintains data consistency while keeping the system relatively simple in structure.
Solution Approach 2:
User related information is pre-stored in the vehicle-exterior apparatus before the user needs to access it. This preliminary action allows the system to quickly retrieve and synchronize data when needed, improving ease of operation without adding complex real-time processing requirements.
3Adaptability or versatility
If a single vehicle is shared among multiple users, then adaptability is improved, but device complexity increases
Solution Approach 1:
The vehicle-exterior apparatus serves multiple functions: it stores user related information, manages authentication for multiple users, and synchronizes data with various in-vehicle units. This multi-functionality enables a single vehicle to be shared among multiple users without proportionally increasing system complexity.
Solution Approach 2:
Instead of maintaining separate complete sets of user information in each in-vehicle unit, the system creates and maintains a single master copy in the vehicle-exterior apparatus, then synchronizes necessary copies to individual vehicles. This copying approach enables multi-user support while keeping overall data redundancy minimal.
Data Source
AI summary
An authentication system includes an in-vehicle unit that is mounted in a vehicle, and a vehicle-exterior apparatus that is provided outside the vehicle. The in-vehicle unit and the vehicle-exterior apparatus are configured to communicate with each other. The in-vehicle unit includes a first vehicle-interior storage unit that stores user related information, a second vehicle-interior storage unit that stores vehicle related information, and a vehicle-interior control unit. The vehicle-exterior apparatus includes a first vehicle-exterior storage unit, a second vehicle-exterior storage unit, and a vehicle-exterior control unit. The vehicle-interior control unit and the vehicle-exterior control unit perform synchronization processing for bi-directionally synchronizing the user related information stored in the first vehicle-interior storage unit and the user related information stored in the shared area in the first vehicle-exterior storage unit with each other.