RFID Tag Multiple RF Network Nodes OTP Memory
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Solution Overview
Problem
Current RFID tags, particularly passive tags, suffer from low bandwidth and high failure rates in data transmission, while active tags are expensive and require a power source, necessitating a solution that enhances performance without the need for a local power source.
Innovation Solution
The implementation of RFID tags with multiple RF network nodes on a substrate, allowing for coordinated functionality, redundancy, and multi-frequency capabilities, including the use of a master node to manage communication and memory, and the integration of sensors for data encryption and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If passive RFID tags are used, then cost is reduced and no power source is needed, but data transmission bandwidth is low and failure rate is high
Solution Approach 1:
The RFID tag is divided into multiple independent RF network nodes (first node, second node, third node) that can operate semi-independently. Each node has its own memory and communication capabilities, allowing the system to segment data transmission across multiple channels, thereby increasing overall bandwidth and reliability without requiring a power source.
Solution Approach 2:
Multiple RF network nodes are merged into a single passive RFID tag substrate, combining their memory resources and communication capabilities. The nodes work together to provide enhanced data transmission bandwidth and redundancy, achieving active-tag-like performance in a passive tag platform through coordination among nodes.
2Reliability
If multiple RF network nodes are integrated on a passive tag substrate, then data transmission reliability and bandwidth are improved, but device complexity increases
Solution Approach 1:
Each RF network node is designed with multi-functionality, capable of serving as both a data storage unit and a communication node. The nodes can perform multiple functions including data storage, data transmission, and coordination tasks, reducing the need for separate specialized components and thereby managing complexity while enhancing reliability.
Solution Approach 2:
The RF network nodes employ self-organizing protocols where nodes automatically establish communication relationships and coordinate data transmission without external control. The master node is selected based on predefined criteria, and nodes autonomously manage their own data storage and transmission tasks, reducing the complexity of external coordination mechanisms.
3Reliability
If OTP memory is used in RF network nodes, then data security is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The OTP memory in each RF network node is pre-programmed during manufacturing with unique identifiers and security credentials. This preliminary action ensures that security features are embedded before the nodes are deployed, allowing for verified data security while using standardized manufacturing processes that do not require ultra-high precision operations during field deployment.
Data Source
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AI summary
In embodiments of the present invention, improved capabilities are described for managing the memory in a radio frequency identification (RFID) tag, including providing, in association with the RFID tag, a plurality of one time programmable (OTP) memory locations for storing RFID tag information, and configuring the plurality of OTP memory locations to act as a single emulated multiple time programmable (eMTP) memory location, such that information received by the RFID tag may be stored within the eMTP memory location.