Composite RFID Tag Memory Mapping for Bandwidth and Reliability
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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 provides performance comparable to active tags in a passive tag platform.
Innovation Solution
The implementation of a composite multi-tag system where multiple RFID tags are configured to operate as a single device, utilizing multiple RF network nodes with separate antennas and memory, enabling improved connectivity, redundancy, and increased memory, and allowing for communication through a beacon tag, which enhances data transmission reliability and range.
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 patent combines multiple passive RFID tags into a composite multi-tag system where tags are physically coupled together (e.g., through electromagnetic coupling or direct physical connection) to function as a single logical unit. This merging allows the system to achieve higher reliability through redundancy while maintaining the passive tag advantage of no local power source, effectively resolving the contradiction between reliability and bandwidth limitations of individual passive tags.
Solution Approach 2:
The system segments data transmission across multiple individual tags within the composite multi-tag facility. Each tag can handle portions of the data transmission load, and the reader coordinates communication with multiple tags simultaneously or sequentially. This segmentation increases overall bandwidth while maintaining passive tag characteristics, addressing the productivity limitation.
2Quantity of substance
If multiple RFID tags are configured as a composite multi-tag, then memory capacity and connectivity are improved, but device complexity increases
Solution Approach 1:
The composite multi-tag system provides universal functionality by combining multiple tags that can collectively offer expanded memory capacity, enhanced connectivity options, and improved reliability. The system can adapt to different application requirements by configuring tags in various ways (e.g., different coupling methods, different communication protocols), making the complex multi-tag system universally applicable across diverse RFID applications while managing complexity through standardized interfaces.
3Productivity
If active RFID tags are used, then performance and bandwidth are improved, but cost increases and power source is required
Solution Approach 1:
The patent merges multiple passive RFID tags into a composite multi-tag system that collectively achieves performance levels comparable to active tags. By combining the capabilities of multiple passive tags, the system attains higher bandwidth and reliability without requiring expensive active tag components or local power sources, thus resolving the contradiction between performance improvement and cost increase.
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
This approach enhances the performance of RFID tags by improving connectivity, increasing memory capacity, and reducing costs, enabling reliable data transmission even in harsh environments and diverse settings, such as liquids and metals, while maintaining efficiency and affordability.
Implementation Method 1
the beacon tag may be a long range tag, a tag that communicates with the reader at long range, contains a large antenna
Implementation Method 2
coupled to the plurality of individual tags (such as through electromagnetic coupling, physical coupling, and the like)
Data Source
AI summary
In embodiments of the present invention improved capabilities are described for a method of memory mapping disparate memories on a composite radio frequency identification (RFID) tag, where the RFID tag includes a plurality of individual RFID devices each having a memory store with a physical memory address range and mounted to a common substrate, where at least one of the individual RFID devices comprises memory configuration information, and where a memory addressing facility maps the physical memory address ranges of each of the individual RFID devices to a single logical addressing space and presents the address space as a single memory, where the memory addressing facility is included on a computing facility separate from the composite RFID tag.