RFID Information Carrier Manual Deactivation and Query Display
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Solution Overview
Problem
Existing contactless signal transmission technologies, such as RFID and NFC, lack the ability to control access to memory content, allowing for potential unauthorized access.
Innovation Solution
An information carrier with a transmission unit and manual means to deactivate or control the transmission, featuring a display device to visually indicate queries, allowing users to manually manage access by disconnecting the memory or antenna from the control chip, power supply, or antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If contactless transmission is enabled for continuous access to memory content, then convenience of operation is improved, but security against unauthorized access deteriorates
Solution Approach 1:
The display device provides visual feedback to the user when a query is received by the transmission unit. This allows the user to be immediately aware of access attempts and manually intervene by operating the manual means to deactivate the transmission unit, thus preventing unauthorized access while maintaining convenient contactless operation.
Solution Approach 2:
The display device acts as an intermediary between the transmission unit and the user. It translates the invisible electromagnetic query into a visible signal that the user can perceive and respond to, enabling the user to control access based on visual information without directly monitoring the transmission unit.
2Reliability
If manual means are added to control transmission, then security is improved, but device complexity increases
Solution Approach 1:
The control functionality is segmented into a separate manual means that can be operated independently from the transmission unit. This allows the security control function to be added without fundamentally redesigning the transmission system, thereby limiting the increase in overall device complexity.
Solution Approach 2:
The manual control means is extracted as a distinct operational element from the automated transmission system. This separation allows the security control feature to be implemented as an add-on component rather than requiring complete system redesign, thus minimizing complexity increase.
3Reliability
If display device is added to indicate queries, then security monitoring is improved, but device complexity increases
Solution Approach 1:
The display device serves multiple functions: it indicates when a query is received, provides security monitoring feedback, and can potentially display additional information about the transmission unit's state. This multi-functionality justifies the addition of the display component by providing multiple benefits from a single added element.
Solution Approach 2:
The display device utilizes visual changes (such as color changes or illumination) to indicate the reception of queries. This provides clear, immediate security monitoring feedback using simple visual cues that are easy to perceive and interpret, enhancing security monitoring capability with minimal complexity.
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 users to visually monitor and control access to the memory content, preventing unauthorized access through manual intervention.
Implementation Method 1
The antenna of the RFID transponder receives this field, creating an induction current that is used to activate and, in the case of so-called passive RFID transponders, to operate the RFID transponder.
Data Source
Figure 1~2
AI summary
The transmission unit (ST1)conforms with standards for a radio frequency identification device (RFID) or for near field communications (NFC). The mechanical, manual deactivation device (MM2) is on the data medium casing. It makes or breaks connection between a memory circuit (SP1) and an antenna (ANT1). It breaks connection between two or more of: a control chip, antenna, energy supply (EV1) and a memory. A display shows interrogation received by the transmission unit. It is designed as a terminal unit for communication with a cellular telecommunications network.