Offline Door Lock Access Using QR Codes and Facial Capture
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Solution Overview
Problem
Existing electronic access control systems for accommodations require guests to carry passive smart devices and rely on Internet connectivity for door lock verification, which is inconvenient and inefficient.
Innovation Solution
An electronic access control system that generates optical computer readable media with access parameters derived from bookings, allowing check-in less access using facial recognition and encoding control parameters such as validity period, guest number, and device usage, without requiring Internet connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guests use passive smart devices for access control, then access security is improved, but guest convenience deteriorates because guests must carry smart devices
Solution Approach 1:
The patent creates an optical copy (QR code) of the access control data that can be displayed on any smartphone screen without requiring the guest to carry a dedicated smart device. The QR code contains encoded access credentials that the door lock can read and verify, providing the same security function through a universal optical medium that any smartphone can display.
Solution Approach 2:
The patent introduces an optical intermediary (QR code) that mediates between the reservation system and the door lock. Instead of direct communication requiring Internet connectivity, the access credentials are encoded into an optical format that serves as an intermediary carrier, allowing the door lock to verify access rights offline by scanning the QR code.
2Reliability
If electronic door locks are connected to the Internet for verification, then access control reliability is improved, but system complexity and dependency on external infrastructure worsen
Solution Approach 1:
The patent performs preliminary encoding of access credentials into the QR code during the reservation process. The door lock receives and stores the decoded access parameters in advance, allowing it to verify guest access rights locally without needing to connect to the Internet during the actual access verification moment.
Solution Approach 2:
The patent transfers access control data from the online reservation system into an offline optical copy (QR code). The door lock reads this optical copy and stores the access parameters locally, creating a self-contained verification system that does not require ongoing Internet connectivity for access control operations.
3Ease of operation
If optical computer readable media is used for access, then guest convenience is improved, but access control security may deteriorate without proper encoding and verification mechanisms
Solution Approach 1:
The patent encodes multiple security parameters within the QR code structure, including access validity periods, guest identifiers, and authorization levels. The door lock decodes these parameters and verifies them against stored reservation data, transforming the simple optical medium into a secure multi-parameter verification system.
Solution Approach 2:
The system implements feedback verification where the door lock reads the QR code, decodes the access parameters, and validates them against the stored reservation information. The lock controller provides feedback by either granting or denying access based on this verification, ensuring that the optical medium cannot be abused without proper authorization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables convenient, secure, and efficient access control without the need for guests to carry smart devices and maintains system functionality offline, while allowing for reservation updates and peripheral device control.
Implementation Method 1
an electronic door lock apparatus comprising a lock controller, a memory device, a camera controlled by the lock controller to obtain image data
Implementation Method 2
The code generator is configured to encoding access parameters derived from bookings in the computer readable media
Data Source
AI summary
An electronic access control system is configured for check-in less access control wherein a code generator generates a booking specific optical computer readable media which is optically read by electronic door lock apparatus. Simultaneously, the electronic door lock apparatus captures facial image data for subsequent keyless entry. Access control parameters are encoded within the optical computer readable media and decoded directly therefrom by the electronic door lock apparatus so that the electronic door lock apparatus does not require Internet connectivity.