QR Code Multi-Locking Device for Keyless Access Control
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Solution Overview
Problem
Existing locking systems require multiple users to obtain and return keys or locks from a manager, causing inconvenience and inefficient management when sharing and using multiple doors.
Innovation Solution
A multi-locking device using a random password system, which includes a locking device management unit, QR code reader, and door locking device, allows users to receive QR codes with door and user IDs and a random password, enabling efficient management and control of door access rights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical keys or fob keys with embedded digital signatures are used for access control, then authentication security is improved, but key management complexity and the risk of unintentional key duplication increase
Solution Approach 1:
The patent replaces physical key systems (mechanical keys and fob keys with embedded digital signatures) with a QR code-based access control system. The locking device management unit generates QR codes that users can scan with their mobile terminals, eliminating the need for physical key distribution and management while maintaining authentication security through randomized password generation and verification.
2Reliability
If multiple users share multiple doors and must obtain and return keys from a manager for each use, then access control is maintained, but user convenience and management efficiency deteriorate
Solution Approach 1:
The patent enables users to independently obtain and use access credentials without manager intervention. The locking device management unit automatically generates QR codes for authorized users, who can then scan these codes with their mobile terminals to unlock doors. This self-service mechanism eliminates the need for users to repeatedly visit the manager to obtain and return physical keys, significantly improving convenience while maintaining access control through automated verification.
3Adaptability or versatility
If physical keys are distributed to multiple users for door access, then access control is enabled, but the risk of key duplication and security breaches increases
Solution Approach 1:
The patent replaces physical key copying with digital QR code generation. Instead of duplicating physical keys, the locking device management unit generates unique QR codes for each user that contain randomized passwords. These QR codes can be instantly created and revoked digitally, eliminating the risk of physical key duplication while enabling multiple users to access the same doors through their mobile terminals.
Data Source
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AI summary
A technical problem to be resolved by the present invention is to provide a multi-locking device using a random password, which can alleviate the inconvenience occurring when multiple users, who are supposed to open and close the same door, need to receive locks/keys from a manager and then return same after use. Disclosed is a multi-locking device comprising: a locking device management unit configured such that, when a user requests same to grant a right to open/close a door, same converts information regarding a granted right regarding the door into a QR code, outputs same, and provides same to the user; a door locking device configured to receive the information regarding a granted right regarding the door from the locking device management unit; and a QR code reader unit configured to receive the QR code from the user and provide same to the door locking device. The door locking device further comprises an opening/closing button and an opening/closing driving unit. If information regarding the provided QR code matches with the information regarding a granted right regarding the door received from the locking device management unit, and if the opening/closing button is manipulated, the opening/closing driving unit is driven to open/close the door.