Smart Lock Biometric Authentication via Portable Device Intermediary
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Solution Overview
Problem
Conventional electronic locks face issues such as accidental unlocking due to shadow detection, inconvenience from requiring direct user interaction, and time-consuming image recognition processes, leading to safety and efficiency concerns.
Innovation Solution
A smart locking system utilizing biometric authentication on a portable electronic device, which includes a controller, driving circuit module, and biometric characteristics extractor to generate a password for unlocking, allowing secure, convenient, and low-energy operation by automatically connecting via Bluetooth when the user is near, without requiring direct proximity or manual button pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If infrared detection unit is used to detect user shadow for unlocking, then unlocking speed is improved, but accidental unlocking occurs resulting in safety issues
Solution Approach 1:
The patent introduces a Bluetooth communication intermediary between the portable device and the lock device. The portable device acts as a mediator that receives biometric data, processes authentication, and then communicates the unlock command to the lock device via Bluetooth, preventing direct shadow-based accidental unlocking while maintaining fast access
Solution Approach 2:
The patent replaces the optical shadow detection mechanism with a biometric authentication system using fingerprint, face recognition, or other biometric data. This substitution eliminates the false positive problem of shadow detection while maintaining rapid authentication through the portable device's processor
2Reliability
If user must be in front of electronic lock to press button for operation, then authentication security is improved, but user convenience deteriorates
Solution Approach 1:
The portable device performs self-service authentication by automatically capturing biometric data, processing it through the application program, and generating the unlock command without requiring the user to physically interact with the lock device. The system serves itself by using the user's existing biometric characteristics already stored in the portable device
Solution Approach 2:
The portable device serves as an intermediary that performs the authentication function remotely. Instead of requiring the user to be at the lock device, the portable device mediates the authentication process by comparing biometric data and communicating the result to the lock via Bluetooth, enhancing both convenience and security
3Measurement precision
If infrared face recognition system retrieves and processes huge amount of face images for recognition, then recognition accuracy is improved, but processing time and electricity consumption increase
Solution Approach 1:
The biometric characteristics data is pre-stored in the portable device's memory during a registration phase. When authentication is needed, the system directly compares the captured biometric data against the pre-stored template without retrieving and processing huge amounts of images, significantly reducing processing time and energy consumption while maintaining high accuracy
Solution Approach 2:
The patent extracts only the essential biometric characteristics (fingerprint patterns, facial features, or other identifying characteristics) and stores them as compact templates in the portable device's memory. This extraction eliminates the need to process complete images during authentication, reducing both time and energy requirements while preserving recognition accuracy
Data Source
AI summary
A smart locking system with biometrics authentication allows a user with a portable electronic device installed with an application program and a biometrics characteristics extractor. The portable electronic device includes an identification code, a biometric characteristics retrieving module and an input unit. The application program has the identification code registered in a controller of a smart lock device and has the biometric characteristics retrieving module retrieve the biometric characteristics of the user. After matching and authentication of the application program, a password is produced and input into a biometric characteristics button of the input unit correspondingly. When the user is carrying the portable electronic device in the predetermined distance set in a Bluetooth receiver of the electronic device, the device automatically transmits a Bluetooth package to the controller and when the biometric characteristics button is touched and pressed, the controller is activated and operates the lock device via the driving circuit module.