RFID Transponder Emulator in Mobile Terminal
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Solution Overview
Problem
Conventional RFID transponders are costly to distribute and implement in access control systems due to their need for individual issuance and lack of energy self-sufficiency.
Innovation Solution
A mobile telecommunications terminal with an integrated RFID transponder circuit and memory unit, utilizing existing data processing components to generate an RFID transponder emulator, allowing for the recognition and transmission of RFID parameter data via loadable algorithms, which can be updated and distributed through telecommunications networks, thereby minimizing costs and enhancing flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional RFID transponders are used with dedicated control circuits and coupling coils, then RFID functionality is achieved, but distribution costs and implementation costs increase significantly
Solution Approach 1:
The mobile terminal's existing data processing unit is made multi-functional by enabling it to perform both standard mobile communication functions and RFID transponder emulation functions. The control circuit is configured to execute RFID algorithms in addition to its primary mobile terminal control tasks, allowing one component to serve multiple purposes and eliminating the need for separate dedicated RFID control circuits in each transponder.
Solution Approach 2:
Instead of using physical RFID transponders with dedicated hardware, the invention creates a software-based copy or emulation of RFID transponder functionality within the mobile terminal. The control circuit loads and executes RFID algorithms that replicate the behavior of conventional RFID transponders, allowing the mobile terminal to respond to RFID reader signals as if it were a traditional RFID tag, thereby avoiding the need to distribute physical transponder units.
2Adaptability or versatility
If conventional RFID transponders are distributed to users, then access control is enabled, but additional distribution and management costs increase
Solution Approach 1:
The invention replaces physical RFID transponder distribution with digital algorithm distribution. Access control capabilities are copied into the mobile terminal through software loading via telecommunications networks, eliminating the need for physical media distribution, tracking, and management. The control circuit can load, store, and execute RFID algorithms that provide access control functionality without requiring physical transponder units to be handed out to users.
Solution Approach 2:
The invention replaces the mechanical/physical distribution system of RFID transponders with an electronic/digital distribution system. Instead of physically distributing transponder units through manual or logistical processes, the access control functionality is distributed electronically through telecommunications networks by transmitting RFID algorithms and parameter data to the mobile terminal's control circuit, thereby substituting a complex physical distribution system with a simpler electronic one.
3Ease of operation
If RFID transponders use external energy supply from reader units, then contactless operation is achieved, but energy independence is lost
Solution Approach 1:
The mobile terminal's data processing unit provides self-service by using its own existing processing capabilities to execute RFID algorithms, rather than relying on external RFID reader units to provide both communication and energy functions. The terminal independently processes RFID protocols and generates responses using its internal resources, achieving a degree of energy independence while maintaining contactless operation through the coupling coil interface.
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 simple, inexpensive, and secure distribution of access authorizations across various systems, reducing the need for physical RFID transponder distribution and supporting multiple RFID frequencies with minimal hardware modifications, while maintaining high user friendliness and security.
Implementation Method 1
an activation signal generated by an RFID reader unit is picked up by the coupling coil of the RFID transponder
Implementation Method 2
a further lead of the coupling coil connected via a rectifier and a bandpass filter to an RFID input of the data processing unit
Data Source
AI summary
A mobile telecommunications terminal comprising RFID functions, in addition to an associated method are provided. In one aspect, the terminal comprises a telecommunications interface, a user interface and a data processing unit. A modification made with the aid of an RFID transponder circuit to be controlled via of RFID data records that are stored in an RFID memory unit in such a way that a flexible RFID transponder emulation is achieved at minimal cost.