Vehicle Key Sharing via NFC Direct Transfer
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Solution Overview
Problem
Existing methods for sharing vehicle electronic keys often rely on separate servers, which can lead to security issues due to hacking or operational mistakes, making it unsafe to directly transfer keys to additional users without server intervention.
Innovation Solution
A method utilizing short-distance communication, such as NFC, allows users to directly share vehicle electronic keys with additional users, setting control values for usage limitations like time, region, and range, without relying on a separate server, using terminals with dedicated applications for key transfer and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate server is used for key sharing, then key transfer can be managed centrally, but security risks increase due to potential hacking or operational mistakes
Solution Approach 1:
The patent extracts the server component from the key sharing system, eliminating the centralized server and its associated security risks. Instead, the key sharing functionality is distributed directly to user terminals, which perform authentication and key transfer operations locally without relying on external server infrastructure.
Solution Approach 2:
The terminal devices perform self-authentication and self-service key transfer operations using stored authentication information. The system enables users to share keys directly through their terminals without requiring server-mediated authentication, making the system autonomous and eliminating single points of failure.
2Reliability
If short-distance communication is used for direct key transfer, then server-related errors are eliminated, but the complexity of authentication processes increases
Solution Approach 1:
Authentication information is pre-stored in terminal devices before key sharing operations. This preliminary setup allows terminals to perform secure authentication and key transfer directly without requiring complex real-time verification processes, simplifying the operational complexity while maintaining security.
3Reliability
If control values are set for key usage limitations, then unauthorized access is prevented, but the ease of operation decreases due to additional configuration steps
Solution Approach 1:
The control values for key usage are made dynamically configurable by users. Users can set, modify, and adjust usage limitations (such as time periods, geographic locations, or specific vehicles) according to their needs. This dynamic approach allows flexible access control without requiring complex pre-planning or rigid configurations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables secure and convenient key sharing, allowing users to set and manage usage conditions directly, reducing the risk of unauthorized access and server-related errors, while maintaining control over key usage.
Implementation Method 1
The short-distance communication may be a near field communication (NFC)-based communication technique in which the key of the vehicle is transferred to the terminal of the additional user by a direct tag between the terminals.
Data Source
AI summary
A method for sharing a key of a vehicle that electronically controls the vehicle includes: setting a control value limiting a use of the vehicle through a terminal of a user of the vehicle which includes the key of the vehicle, and transferring the key of the vehicle from the terminal of the user to a terminal of an additional user of the vehicle using short-distance communication.