Anti-tampering RFID Seal with Conductive Thread
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Solution Overview
Problem
Existing security sealing systems for lock devices, particularly in fuel tank trucks, are ineffective against unauthorized access and tampering, leading to significant financial losses due to their vulnerability and high costs associated with multiple control units and high-intensity interrogation signals.
Innovation Solution
A cost-effective security sealing system utilizing a dual transmission line configuration with a flexible, conductive thread-like element that encircles lock devices, combining mechanical and electrical connections to prevent tampering, and using RFID tags with a radio-frequency interrogation signal within the ISO/IEC 18000-6 standard, allowing for efficient monitoring of multiple lock devices with a single control unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prior art security sealing systems are used, then lock devices can be secured, but they are vulnerable to tampering and circumvention
Solution Approach 1:
The patent introduces a conductive thread-like element as an intermediary component that physically connects the lock device to the RFID tag. This intermediary element serves as a tamper-evident seal that must be cut or broken to access the lock, providing mechanical security in addition to electronic identification. The conductive nature of this intermediary enables electrical connection for RFID communication while its physical presence provides tamper resistance.
Solution Approach 2:
The system combines multiple materials and functions into a unified sealing structure: the conductive thread-like element integrates mechanical sealing (physical barrier), electrical conduction (RFID signal transmission), and tamper evidence (cut detection) into a single composite component. This multi-functional composite approach resolves the contradiction by simultaneously providing security effectiveness and tamper resistance.
2Reliability
If multiple control units and high-intensity interrogation signals are used, then security monitoring is improved, but installation costs increase significantly
Solution Approach 1:
The conductive thread-like element serves multiple functions simultaneously: it acts as a mechanical seal, an electrical conductor for RFID signals, and a tamper-evident indicator. This multi-functionality eliminates the need for separate components (multiple control units, additional wiring, separate sealing elements), thereby reducing installation complexity and cost while maintaining or improving monitoring capability.
Solution Approach 2:
The patent merges the sealing function, electrical connection function, and RFID communication function into a single integrated conductive thread-like element. By combining these previously separate functions into one component, the system reduces the number of parts to be installed and configured, directly lowering installation costs while preserving comprehensive monitoring capability.
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
The system provides immediate identification of tampering attempts, prevents circumvention, and reduces installation costs by using low-cost components and commercially available coaxial cables, while ensuring secure access control with rapid response times and location/time recording of tamper events.
Implementation Method 1
the control unit will generate an interrogation signal for the control device, which interrogation signal is transmitted through the transmission line
Data Source
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AI summary
A security sealing system for controlling lock devices of openings or compartments or the like, comprising a control unit (1), a transmission line and at least one control device (3). Said control unit (1) is connected to said at least one control device (3) via said transmission line, said control unit (1) generating an interrogation signal for said control device (3), which interrogation signal is transmitted through said transmission line for assessing the integrity of said transmission line. Said transmission line is composed of a first transmission section (21) and a second transmission section (22), which are connected via a connecting device (23), which second transmission section (22) is composed of a flexible thread-like element (22) adapted to at least partially encircle said closure device. Furthermore, said control device (3) consists of a RFID device, the interrogation signal consisting of a radio-frequency signal.