Portable Access Control Device Cellular Key Update
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Solution Overview
Problem
Existing access control systems face challenges in efficiently updating access rights across lock devices, particularly when key devices are lost, due to the cumbersome nature of dedicated key update devices, leading to security compromises from delayed propagation of updates.
Innovation Solution
A portable access control communication device that facilitates communication between a key device and an access control device via a cellular network, enabling efficient updating of access rights and revocation lists, even for lock devices without a power supply, by using a dual terminal connection for both power and communication, and incorporating a cellular communication module for remote control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated key update devices connected to laptop computers are used to update key devices, then updated access rights can be provided to key devices, but the key update devices are large and cumbersome, leading to infrequent updates and delayed propagation of access rights
Solution Approach 1:
The mobile telephone is equipped with multiple interfaces including key device interface and lock unit interface, enabling it to perform both key device updating and lock unit control functions. This multi-functionality replaces the need for dedicated key update devices while maintaining update reliability.
Solution Approach 2:
The patent replaces the mechanical/dedicated key update device with an electronic communication-based system using a mobile telephone. The update process is achieved through data transmission via cellular network or direct connection, eliminating the need for cumbersome dedicated hardware.
2Reliability
If dedicated key update devices are used for updating access rights, then access rights can be updated, but significant time passes between operator updating and propagation to all lock devices, compromising security
Solution Approach 1:
The mobile telephone stores updated access rights data in its memory before actual use. When a key device is connected, the telephone can immediately provide the pre-stored updated access rights without requiring real-time connection to the operator or central system, eliminating propagation delay.
Solution Approach 2:
The mobile telephone acts as an intermediary that receives, stores, and distributes access rights data. It mediates between the operator's update action and the key devices, enabling immediate local propagation of updates without requiring continuous connection to the central access control system.
3Ease of manufacture
If lock devices are provided without power supply, then simpler installation is achieved, but the lock devices can only be powered when a matching key device is inserted, limiting flexibility
Solution Approach 1:
The mobile telephone is equipped with both key device interface and lock unit interface, enabling it to function as both a key device for powering simple lock devices and as a direct controller for lock units. This allows the system to support both powered and unpowered lock device configurations.
Solution Approach 2:
The mobile telephone serves as an intermediary power and control source. It can power simple lock devices through electrical connection with key devices, or directly control lock units via cellular network or direct connection, providing flexibility for different lock device configurations.
Data Source
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AI summary
It is presented a portable access control communication device comprising: a housing for protecting a key device, the access control communication device; a socket arranged to hold a blade of a key device, the socket comprising a connector for communication with the key device; a cellular radio communication module; and a controller. The controller is arranged to communicate, using the cellular radio communication module, with an access control device over a cellular communication network when a key device is provided in the socket such that there is galvanic contact between the key device and the socket. A corresponding method, computer program and computer program product area also presented.