Multi-Node RFID Tag for High-Bandwidth Passive Data Transmission
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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 comparable to active tags in a passive tag platform.
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 encryption, to improve data transmission and memory management.
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 data transmission bandwidth is low and failure rate is high
Solution Approach 1:
The RFID tag is divided into multiple independent RF network nodes, each capable of autonomous data transmission. This segmentation allows parallel communication channels to be established, increasing overall data transmission bandwidth while maintaining the passive tag advantage of no power source requirement.
Solution Approach 2:
Multiple RF network nodes are combined within a single passive RFID tag substrate, creating a multi-node collaborative system. The nodes work together to provide redundant transmission paths, improving reliability through failure tolerance while collectively increasing data transmission capacity.
2Productivity
If active RFID tags are used, then data transmission performance is improved, but cost increases and power source is required
Solution Approach 1:
The tag is segmented into multiple RF network nodes that can autonomously harvest energy from the RF field and perform data transmission without a traditional power source. This eliminates the need for batteries or power management circuitry while maintaining high data transmission performance.
Solution Approach 2:
Each RF network node is designed to self-power through electromagnetic energy harvesting from the reader's RF field. The nodes autonomously manage their own operation without requiring external power sources, reducing device complexity while achieving active-tag-level transmission performance.
3Quantity of substance
If multiple RF network nodes are added to increase memory capacity, then storage capability is improved, but device complexity increases
Solution Approach 1:
Multiple RF network nodes are merged into a coordinated system where memory resources are pooled and managed collectively. The nodes communicate through standardized protocols, allowing the system to function as a unified storage resource rather than separate independent units, thus increasing capacity without proportional complexity increase.
Solution Approach 2:
Each RF network node is designed with universal functionality, including data storage, processing, and communication capabilities. This multi-functionality allows any node to assume various roles within the network, simplifying coordination mechanisms while maximizing the utilization of total memory capacity across all nodes.
Data Source
AI summary
In embodiments of the present invention improved capabilities are described for a Radio Frequency ID (RFID) tag that contains multiple Radio Frequency (RF) network nodes that may include memory storage for the RFID tag, the memory storage may include one time programmable (OTP) memory and many time programmable (MTP) memory and the storage of the information may be within the OTP and MTP memory.