Frangible RFID Skin Badge for Secure Non-Transferable Identification
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Solution Overview
Problem
Existing secure identification devices lack effective mechanisms to prevent transfer and ensure secure communication while maintaining functionality, especially with the incorporation of RFID technology, which requires robust yet frangible securement systems.
Innovation Solution
A secure cutaneous information device with a substrate and adhesive system that incorporates a frangible RFID chip and antenna structure, designed to break apart mechanically, optically, and electrically upon attempted transfer, ensuring non-transferability while supporting human readable, optically scannable data and wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a frangible adhesive layer is used to prevent transfer of the device, then security against unauthorized transfer is improved, but the mechanical robustness and durability of the device deteriorates
Solution Approach 1:
The device is divided into multiple layers (adhesive layer, frangible layer, information bearing layer, protective layer) where each layer serves a specific function. The frangible layer acts as a mechanical weak point that segments the device structure, allowing it to break upon attempted removal while maintaining durability during normal use.
Solution Approach 2:
The frangible layer is pre-positioned within the device structure before application to the skin. This preliminary placement ensures that the weak point is already in place, so when removal is attempted, the device automatically breaks at the predetermined location without requiring additional activation steps.
2Adaptability or versatility
If RFID technology is incorporated to enhance wireless communication capability, then functionality and information exchange capability are improved, but device complexity and structural requirements deteriorate
Solution Approach 1:
The RFID antenna is integrated directly into the frangible layer, merging the wireless communication function with the security mechanism. This combination eliminates the need for separate antenna structures and reduces overall device complexity while maintaining both RFID functionality and frangibility.
Solution Approach 2:
The frangible layer serves multiple functions: it provides the mechanical weak point for security, acts as the substrate for the RFID antenna, and contributes to the overall device structure. This multi-functionality reduces the number of separate components needed, simplifying the device despite incorporating RFID technology.
3Reliability
If the device is made highly frangible to ensure non-transferability, then security against unauthorized use is improved, but the durability and wear resistance during intended use deteriorate
Solution Approach 1:
The device has non-uniform mechanical properties: the frangible layer is deliberately designed with low strength at specific locations to enable breaking, while other layers (adhesive layer, protective layer) maintain high strength and durability during normal wear. This local differentiation allows the device to be both durable during use and frangible upon removal attempts.
Solution Approach 2:
The device transitions from a stable, durable state during intended use to a broken, non-functional state upon attempted removal. The frangible layer remains intact under normal mechanical stresses of daily wear but fails when subjected to the forces applied during removal attempts, providing dynamic security response.
Data Source
AI summary
A badge of the type comprising a substrate with a top side and a bottom side, an adhesive disposed on the bottom side for adhering the badge to a person, and a visually discernible material disposed on the top side for providing information, has a wireless device carrying first information secured directly or indirectly to said substrate. The visually discernible material comprises a first portion of visually discernible material and a second portion of visually discernible material. The first portion of visually discernible material is positioned, configured and dimensioned to communicate humanly perceptible and humanly readable second information. The second portion of visually discernible material carries third information encoded within the second portion of the visually discernible material and is positioned, configured and dimensioned to be scanned by an optical device in order to the read said third information encoded within the second portion of the visually discernible material. The substrate and/or said wireless device is frangible.