Adaptive Biometric Authentication Score for Autonomous Vehicles

The patent applies dynamics by making the authentication method adaptive rather than static. The system dynamically selects between different authentication-purposed user-input types based on the authentication score and service security requirements. When a high authentication score is achieved with a partial fingerprint, the system dynamically chooses to use only that biometric data; when the score is lower, it dynamically adjusts to require additional user-input authentication, thus adapting the security level to match the situation while maintaining cost and space efficiency.

The patent changes the parameter of authentication security level from a fixed value to a variable that depends on the authentication score. By calculating the authentication score based on the matching degree of biometric information and service security levels, the system adjusts the required authentication method accordingly. This parameter change allows the system to maintain low cost and space requirements while flexibly adjusting security to prevent false acceptance.

The patent applies partial action by requiring only the necessary amount of authentication based on the authentication score. Instead of always requiring full double authentication, the system performs partial authentication using only biometric data when the authentication score is high enough. This partial approach maintains security for high-confidence cases while improving convenience for low-risk scenarios, eliminating unnecessary authentication steps.

The system dynamically determines the authentication method based on the calculated authentication score and service security level. When the score indicates high confidence, the system dynamically switches to biometric-only authentication; when confidence is lower, it dynamically adds user-input authentication. This dynamic adjustment resolves the contradiction by making authentication convenience dependent on actual security needs rather than applying a fixed rigid process.

The patent applies local quality by providing different authentication accuracy levels for different services based on their specific security requirements. Instead of uniformly applying high accuracy authentication to all services, the system locally adjusts the authentication method for each service based on its security level and the calculated authentication score. This allows high accuracy where needed while using faster, simpler authentication for services that don't require it, thus resolving the time-quality trade-off.

The system changes the authentication accuracy parameter dynamically based on service requirements and authentication scores. For services with low security requirements or high authentication scores, the system uses lower accuracy (faster) authentication methods. For services requiring high security or with low authentication scores, it switches to high accuracy methods. This parameter adjustment resolves the contradiction between authentication time and accuracy by making accuracy a variable rather than a constant.