Dual-Frequency RFID Reader for Secure Item Data Access
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Solution Overview
Problem
The adoption of ultra-high frequency (UHF) RFID tags for supply chain management has been slow due to security concerns related to longer read ranges, which can compromise transaction data security, while high frequency (HF) tags are preferred for shorter ranges suitable for transactions but limited in range and application.
Innovation Solution
A system and method utilizing an RFID tag coupled to an item, accessible by a mobile device with dual HF and UHF RFID reader capabilities, allowing for the storage and communication of item information, including links to remote servers, enabling secure and efficient data access and updating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If UHF RFID tags are used for supply chain management, then the read range is extended to several meters, but transaction data security is compromised due to longer broadcast distances
Solution Approach 1:
The system dynamically switches between UHF and HF RFID modes based on the operational context. UHF mode is used for supply chain tracking where long read range is needed, while HF mode is used for transactions where security is paramount. This dynamic adaptation resolves the contradiction by allowing the system to optimize for either range or security depending on the situation.
Solution Approach 2:
The invention changes the operating frequency parameter of the RFID system. By having dual-frequency capability (both UHF and HF), the system can adjust the frequency parameter to match the security requirements of the specific application, thereby resolving the contradiction between read range and security.
2Object-affected harmful factors
If HF RFID tags are used for transactions, then transaction data security is improved through shorter read ranges, but the application versatility is limited
Solution Approach 1:
The system is designed with multi-functionality by incorporating both UHF and HF RFID readers and tags. This universal design allows the same system to serve multiple purposes: secure transactions using HF mode and supply chain management using UHF mode, thereby resolving the contradiction between security and versatility.
Solution Approach 2:
The system dynamically adapts its frequency based on the application requirements. For transactions, it switches to HF mode for enhanced security, while for supply chain tracking, it switches to UHF mode for extended range. This dynamic behavior enables the system to be versatile across different applications while maintaining appropriate security levels.
3Adaptability or versatility
If dual-frequency RFID readers and tags are implemented, then both security and functionality are balanced, but device complexity increases
Solution Approach 1:
The invention merges UHF and HF RFID capabilities into a single integrated system. By combining both frequency capabilities in one reader and tag design, the system achieves both security and functionality without requiring separate systems, thereby mitigating the complexity issue while maintaining the benefits of dual-frequency operation.
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 secure and efficient communication of item information over varying ranges, balancing security and functionality by using dual-frequency RFID readers and tags, enhancing user interaction and updating capabilities.
Implementation Method 1
Some tags require no battery and are powered and read at short ranges via magnetic fields (electromagnetic induction)
Implementation Method 2
Other tags use a local power source and emit radio waves (electromagnetic radiation at radio frequencies)
Data Source
AI summary
A system for providing item information includes: a radio frequency identification (RFID) tag coupled to an item; and a mobile device comprising an RFID reader. The RFID tag includes stored information related to the item, and the RFID reader is configured to access the RFID tag, obtain the item information, and communicate the item information to a user.