Virtual Key Sharing via NFC Authentication Without Manual Phone Pairing
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Solution Overview
Problem
Existing virtual key sharing methods are cumbersome and inconvenient, requiring both the vehicle owner and the authorized user to be in close proximity and manually interact with their phones for key sharing, which is inefficient and lacks security.
Innovation Solution
A virtual key sharing system utilizing near field communication (NFC) technology for secure and efficient key transmission, involving a sharing terminal, authorized terminal, vehicle manufacturer server, and mobile phone manufacturer server to authenticate and authorize the user, enabling seamless key sharing without manual phone interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional network-based key sharing is used, then key sharing can be achieved, but the operation becomes cumbersome and requires manual phone interaction
Solution Approach 1:
The patent replaces manual mechanical interaction (touching phones, button pressing) with NFC electromagnetic field-based automatic authentication. The sharing terminal and authorized terminal automatically establish communication through NFC when in proximity, eliminating the need for manual operation steps while maintaining secure key transfer.
Solution Approach 2:
The system enables self-service key sharing where the authorized terminal automatically receives and processes the virtual key through NFC authentication without requiring manual intervention from the user. The polling mechanism and automatic credential transmission occur autonomously once the terminals are in proximity.
2Reliability
If close proximity requirement is maintained for security, then security is improved, but convenience deteriorates
Solution Approach 1:
The patent uses NFC electromagnetic field technology to maintain secure close-proximity authentication while significantly improving convenience. The automatic polling and credential transmission through NFC eliminate cumbersome manual steps, making the secure process as convenient as bringing phones close together without requiring additional manual interactions.
3Reliability
If manual phone interaction is required, then authorization can be verified, but transmission time increases
Solution Approach 1:
The system performs preliminary authorization verification through NFC authentication before key transmission. The polling mechanism pre-verifies the authorized terminal's credentials, and only after successful verification is the virtual key transmitted. This preliminary action ensures security while enabling rapid subsequent transmission without manual delays.
Solution Approach 2:
The patent replaces time-consuming manual verification steps with rapid NFC electromagnetic field-based authentication. The automatic polling and credential checking occur in seconds through NFC communication, dramatically reducing the time required for authorization verification compared to manual phone interaction methods.
4Adaptability or versatility
If traditional key sharing methods are used, then compatibility is achieved, but user experience deteriorates
Solution Approach 1:
The patent implements a universal key sharing solution based on NFC technology that works across different mobile platforms (Android, iOS) and terminal types. The NFC protocol provides platform-agnostic communication, allowing the sharing terminal to authenticate with any authorized terminal that has NFC capability, thereby achieving broad compatibility while providing a consistent and convenient user experience across all devices.
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
Facilitates secure, fast, and convenient virtual key sharing by eliminating the need for manual phone interactions, ensuring data security, and allowing key sharing across different mobile platforms, even with low battery vehicles.
Implementation Method 1
enable a first near field communication (NFC) communication module when acquiring a touch signal indicating that the user touches the touch button
Data Source
Figure 1~2
AI summary
The present disclosure provides a virtual key sharing system, including: a sharing terminal, configured to: acquire share permission information inputted by a user, generate a touch button according to the share permission information, enable a first near field communication (NFC) communication module when acquiring a touch signal indicating that the user touches the touch button, and perform polling through an NFC signal of the first NFC communication module to determine whether an authorized terminal exists; the authorized terminal, configured to transmit information required for authorization to the sharing terminal when receiving an information feedback instruction; and a vehicle manufacturer server, configured to receive the information required for authorization transmitted by the sharing terminal, so as to generate an authorization credential according to the information required for authorization.