RFID Tag With Multiple RF Network Nodes For Bandwidth
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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 increasing costs or complexity.
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 a master node for communication and memory management, to improve data transmission 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 required, but 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 transceiver and can communicate with readers, allowing the system to achieve higher effective bandwidth through multiple simultaneous communication channels while maintaining the passive tag architecture.
Solution Approach 2:
Multiple RF network nodes are integrated onto a single RFID tag substrate, combining their memory resources and communication capabilities. The nodes share common memory resources and can coordinate their transmission activities, effectively increasing the overall data transmission bandwidth and reliability without requiring multiple separate tags.
2Productivity
If multiple RF network nodes are added to increase bandwidth, then data transmission capability improves, but device complexity increases
Solution Approach 1:
A master node is introduced as an intermediary that coordinates communication between multiple RF network nodes and external readers. The master node manages transmission scheduling, memory access, and protocol handling, simplifying the complexity by centralizing control functions rather than requiring complex peer-to-peer coordination between all nodes.
Solution Approach 2:
Each RF network node is designed with universal, standardized interfaces and protocols for communication and memory access. This allows nodes to be interconnected in various configurations and enables the system to handle multiple functions (data storage, transmission, coordination) through the same basic node architecture, reducing overall system complexity.
3Reliability
If active RFID tags are used, then bandwidth and reliability improve, but cost increases and power source is required
Solution Approach 1:
The RFID tag system dynamically switches between different operational modes where nodes can be activated or deactivated based on communication needs. During power collection phases, nodes remain in low-power states, and only activate during transmission windows, achieving active-tag-like performance during critical operations while maintaining passive tag power consumption characteristics overall.
Data Source
AI summary
In embodiments of the present invention improved capabilities are described for emulating multiple-time programmable memory utilizing one-time programmable memory, the memory comprising a plurality of one time programmable (OTP) memory locations for storing information, the plurality of OTP memory locations configured to operate as a single emulated many time programmable (eMTP) memory location, wherein the plurality of OTP memory locations operating as an eMTP memory location are associated with one address, the one address readable and writable.