QR Code Handle Arrangement for Secure Access Control
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Solution Overview
Problem
Existing access systems for large buildings are costly, inflexible, and inefficient, particularly when managing temporary access and requiring multiple user items for authorization, which complicates administration and security.
Innovation Solution
A handle arrangement with a locking mechanism, blocking mechanism, control unit, and display unit that uses a QR code for user authentication, enabling secure and flexible access management through a remote server connection, with a second level authorization function involving a pin code or tag reader for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional key cards or RFID tags are used for user authentication, then users can be granted access to different areas, but the system requires many user items and high administration levels, incurring large costs
Solution Approach 1:
The patent replaces physical authentication items (key cards, RFID tags) with a digital copy in the form of a QR code displayed on the user's mobile device. This eliminates the need for physical items and reduces administration complexity while maintaining access security through the same authentication mechanisms.
Solution Approach 2:
The patent substitutes the mechanical/physical authentication system (key cards, RFID tags) with an optical/electronic system using QR codes displayed on mobile devices. This substitution reduces the need for physical item management and lowers administration overhead while maintaining security.
2Adaptability or versatility
If physical user items like key cards or tags are used, then users can identify themselves for access, but the system is not flexible when providing temporary access to visitors since a special physical item is needed
Solution Approach 1:
The patent enables temporary access for visitors by using a QR code copy on their mobile device instead of requiring a physical item. This provides flexibility for temporary access while avoiding the complexity of managing physical items for transient users.
Solution Approach 2:
The system allows users to generate and use their own authentication QR code from their mobile device without requiring administration to issue physical items. This self-service approach increases flexibility for temporary access while reducing item management complexity.
3Reliability
If a blocking mechanism is added to prevent the locking mechanism from being moved from the locking state, then security is enhanced, but the device complexity increases
Solution Approach 1:
The patent introduces a blocking mechanism as an intermediary element between the user and the locking mechanism. This blocking mechanism is controlled remotely via QR code authentication, providing enhanced security while keeping the physical structure relatively simple by using electronic control rather than complex mechanical interlocks.
Data Source
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AI summary
The present invention relates to a handle arrangement (1) comprising a locking mechanism (10), a blocking mechanism (20), a handle (30), a display unit (50), and a control unit (40) communicatively connected to a remote server (80) and configured to display a QR code on the display unit for a user to read, wherein the QR code is unique for the handle arrangement and the time period during which the QR code is displayed, receive, from a remote server, information that the user has communicated, to the remote server, a reading of the displayed QR code together with an identification of the user, and that the identified user is authorized to open the door, and either operate the blocking mechanism enabling opening of the door by means of the handle, or enabling a second level authorization function for the user to verify its authorization, and if access is granted, operating the blocking mechanism enabling opening of the door by means of the handle.