Biometric Authentication with Health-State Adaptive Conditions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional signal-based biometric authentication methods fail to verify whether the authentication subject is a living body and in an appropriate health state, leading to potential device operation by an inappropriate subject.
Innovation Solution
A biometric authentication apparatus that measures biometric information, generates authentication information, estimates mental and physical states, and adjusts authentication conditions based on these states to ensure appropriate device operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional signal-based authentication is used, then authentication can be performed, but verification of whether the subject is a living body and in appropriate health state cannot be performed
Solution Approach 1:
The system continuously monitors biometric signals and provides feedback about the subject's living body status and health state to the authentication determination unit, enabling dynamic adjustment of authentication decisions based on real-time physiological information
Solution Approach 2:
A mental and physical state estimation unit is introduced as an intermediary component that processes biometric information to determine the subject's living body status and health state, which then influences the authentication outcome
2Ease of operation
If authentication is performed without health state verification, then authentication process is simple, but device operation may be performed by inappropriate subjects
Solution Approach 1:
The system performs preliminary assessment of the subject's living body status and health state before allowing device operation, using biometric signal analysis to predict whether the subject is in an appropriate state for operation
Solution Approach 2:
The authentication determination unit receives feedback about the subject's health state from the mental and physical state estimation unit and adjusts the authentication decision accordingly, preventing device operation when the subject is in an inappropriate state
3Reliability
If mental and physical state estimation is added to authentication, then authentication validity is enhanced, but device complexity increases
Solution Approach 1:
The mental and physical state estimation unit serves multiple functions: it estimates living body status, assesses health state, and provides inputs for authentication determination, reducing the need for separate specialized components
Solution Approach 2:
The system changes the parameters used for authentication based on the estimated mental and physical state, adjusting authentication criteria dynamically rather than using fixed thresholds, which simplifies the overall decision-making logic
Data Source
AI summary
A measurement unit (21) measures biometric information of an authentication subject by a sensor. An authentication information processing unit (22) generates from the biometric information acquired by the measurement unit (21), authentication information that varies depending on the individual living body, and determines the propriety of authentication based on whether or not the authentication information satisfies an authentication condition. A mental and physical state estimation unit (23) generates from the biometric information, mental and physical information for estimating a mental and physical state of the authentication subject, and estimates the mental and physical state from the mental and physical information. An authentication condition update unit (24) changes the authentication condition depending on the mental and physical state estimated by the mental and physical state estimation unit (23).