Biometric Door Access Using Body Area Network Authentication
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Solution Overview
Problem
Existing access control systems for buildings and vehicles often rely on key fobs or cards, which may not provide sufficient security and convenience, especially in scenarios requiring advanced authentication methods.
Innovation Solution
A portable device with a biometric sensor and a body area network (BAN) transceiver that communicates with an access controller to transmit a digital key based on a user's biometric signature and identifier, allowing secure and convenient locking or unlocking of doors without additional user actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional key fobs or cards are used for access control, then the system is simple to operate, but security is insufficient and vulnerable to attacks
Solution Approach 1:
The patent replaces traditional mechanical access control systems (key fobs, cards) with a biometric-based system using ECG electrocardiogram signals. The portable device captures the user's cardiac electrical activity through biometric sensors, processes it to generate a unique digital signature, and transmits it securely to the access control system. This substitution of mechanical authentication with physiological biometric authentication significantly enhances security while maintaining user convenience.
Solution Approach 2:
The system changes the authentication parameter from physical objects (keys, cards) to physiological parameters (ECG signals). By utilizing the electrical characteristics of the heart, which are unique to each individual and difficult to replicate, the system transforms the authentication mechanism into a more secure biometric verification process that resists traditional attacks.
2Reliability
If biometric authentication is implemented, then security is enhanced, but additional user actions are required
Solution Approach 1:
The portable device automatically performs biometric authentication without requiring active user participation. The device continuously monitors ECG signals and automatically generates and transmits the digital signature when the user approaches the access control point. The user simply needs to be in proximity; the authentication process happens autonomously, eliminating the need for manual actions while maintaining high security.
Solution Approach 2:
The system performs preliminary biometric data collection and processing in advance. The portable device continuously captures and processes ECG signals, preparing the authentication credentials before the user actually needs to access the secured area. This preliminary preparation ensures that authentication is immediate and seamless when the user arrives at the access point.
3Measurement precision
If continuous biometric monitoring is performed, then authentication accuracy is improved, but power consumption increases
Solution Approach 1:
The system uses periodic action by triggering biometric monitoring only when needed - specifically, when the portable device detects proximity to an access control point or receives a request signal. The biometric sensors and processing units are activated on-demand rather than continuously, significantly reducing power consumption while maintaining authentication accuracy when actually required.
Solution Approach 2:
The system dynamically adjusts its operation based on contextual conditions. The portable device transitions between low-power and active states, enabling biometric monitoring only when the user is near an access control point or when authentication is requested. This dynamic adaptation optimizes the balance between authentication accuracy and power consumption.
Data Source
AI summary
A method and apparatus of access control as described. A touch of a touch zone of an access controller including a body area network (BAN) transceiver is detected. In response to detecting the touch, a request from an access controller comprising a BAN transceiver via a body area network is transmitted to a user of a portable device including a BAN transceiver and a biometric sensor. The request is received by the portable device via the BAN network. In response to receiving the request, the portable device transmits a digital key comprising biometric data detected by the biometric sensor and a digital identifier from the portable device to the access controller via the BAN network. The user is authenticated by the access controller using the digital key. The access controller controls and actuator to lock or unlock a door in response to the user being authenticated.