Mobile Access Code Transfer via Near-Field Communication
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Solution Overview
Problem
Existing access control systems using chipcards are vulnerable to unauthorized transfer or loss, as the access code is tied to the user's mobile device and requires knowledge of the PIN code, limiting the ability to grant access to authorized third parties.
Innovation Solution
A method utilizing multiple mobile communications units that can securely transmit and receive access codes between each other and a receiver unit, enabling secure transfer of access rights through wireless near-field communication, with features like PIN code interrogation and attribute management to ensure secure and time-restricted access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a chipcard with electronic key is used for access control, then access rights can be stored and managed, but the chipcard can be lost or passed to unauthorized third parties
Solution Approach 1:
The access control system is segmented into multiple independent components: a central control unit that stores master access codes, mobile communication units that can store and transmit access codes, and receiver units at access points. This segmentation allows the access code to be distributed and transmitted securely without relying on a single physical chipcard.
Solution Approach 2:
Mobile communication units serve as intermediaries between the central control unit and the receiver units. They can receive access codes from the central unit, store them temporarily, and transmit them to receiver units for access control, eliminating the need for physical chipcards while maintaining security through controlled transmission.
2Reliability
If the access code is tied to the user's mobile device with PIN code protection, then security is improved, but the ability to grant access to authorized third parties is limited
Solution Approach 1:
The system allows access codes to be copied from the central control unit to authorized mobile communication units. The central unit can generate and transmit identical or different access codes to multiple mobile devices, enabling authorized third parties to access controlled areas without compromising security, as each code can be individually managed and revoked.
3Adaptability or versatility
If multiple mobile communications units are used to transmit access codes, then secure transfer of access rights is enabled, but device complexity increases
Solution Approach 1:
Mobile communication units perform multiple functions: they store access codes, transmit them securely via communication networks, and can serve as both senders and receivers. This multi-functionality reduces the need for separate dedicated devices for each function, simplifying the overall system architecture while enabling flexible access code transfer.
Data Source
AI summary
A method of controlling access to an area accessible by persons, particularly to a space closed by a door, includes providing a first mobile communications unit on which at least one access code is filed, at least one second mobile communications unit and a receiver unit for receiving the access code. The access code is transmitted by the first communications unit to the second communications unit. The access code is transmitted to the receiver unit by this second communications unit. After a successful checking of the access code by the receiver unit the door access is freed.