Biometric Vehicle Access Control via Mobile Segmentation
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Solution Overview
Problem
Existing access control systems for motor vehicles face challenges in ensuring data security and protection when using biometric data for authentication.
Innovation Solution
A procedure that utilizes a mobile communication facility carried by the vehicle user to establish a connection with a vehicle-side communication facility, where biometric data is recorded and verified using a detection device, and the evaluation is performed on the mobile communication facility using stored comparison data, ensuring that sensitive comparison data remain secure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biometric data is captured and verified using a vehicle-mounted system, then access control functionality is improved, but data security and protection standards are compromised
Solution Approach 1:
The system divides the biometric authentication process into separate functional segments: the vehicle-mounted detection device captures biometric data, the mobile communication device verifies it against stored comparison data, and only the result is transmitted back to the vehicle. This segmentation ensures that sensitive comparison data never leaves the mobile device while still enabling vehicle access control.
Solution Approach 2:
The mobile communication device acts as an intermediary between the vehicle-mounted detection device and the authentication database. It receives captured biometric data, performs verification using stored comparison data, and transmits only the verification result to the vehicle control device, thereby protecting sensitive biometric comparison data from exposure.
2Loss of time
If biometric comparison data is stored in the vehicle-mounted system, then verification speed is improved, but data protection requirements are violated
Solution Approach 1:
The mobile communication device pre-stores biometric comparison data before approaching the vehicle. When access is needed, the device can immediately verify captured biometric data against this pre-loaded comparison data without requiring real-time communication with external databases, thus achieving fast verification while maintaining data protection.
3Device complexity
If a centralized vehicle control device processes all biometric data, then system complexity is reduced, but security vulnerabilities increase
Solution Approach 1:
The system architecture is segmented into multiple independent components with distinct security roles: the vehicle-mounted detection device handles only data capture, the mobile communication device handles sensitive verification operations, and the vehicle control device handles only access execution. This segmentation reduces centralized vulnerabilities while distributing security functions.
Data Source
Figure 1~2
AI summary
In a method for access control on motor vehicles, initial data (4) is transmitted from a mobile communication device (3) to a vehicle-mounted communication device (10). This initial data (4) is then checked in a vehicle-mounted control unit (11) coupled to the communication device (10). A vehicle-mounted biometric data acquisition device (5) is activated based on the verification of the initial data to acquire biometric data of a user. At least a portion of the acquired biometric data (10) is transmitted as second data (6) to the mobile communication device (3). This second data (6) is checked against biometric reference data stored in the mobile communication device, and third data is generated based on the results of this check.The third data (7) is checked in the vehicle's control unit and a vehicle function is enabled depending on the check.