RFID Network System Using Concentrators to Reduce Reader Cost
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Solution Overview
Problem
The high cost and complexity of RFID readers/writers have hindered the widespread adoption of RFID technology, particularly in applications requiring multiple readers, such as item tracking systems, due to the need for expensive and sophisticated components for high-level protocols and processing power.
Innovation Solution
A network system utilizing low-cost, reduced-functionality RFID readers/writers connected through intelligent concentrators, which communicate using a low-level protocol, minimizing processing requirements and allowing parallel processing of commands across multiple readers, thereby reducing overall system complexity and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If expensive and sophisticated RFID readers/writers are used to support high-level protocols and processing, then processing capability and protocol support are improved, but system cost increases
Solution Approach 1:
The patent introduces a concentrator as an intermediary device between the simple RFID readers/writers and the host system. The concentrator handles high-level protocol processing, command routing, and data management, while the RFID readers/writers themselves remain simple and inexpensive. This mediator approach allows the system to achieve sophisticated processing capabilities without requiring expensive readers/writers, directly resolving the contradiction between processing capability and device cost.
Solution Approach 2:
The system functionality is segmented into two parts: simple RFID readers/writers that perform only basic radio frequency operations, and intelligent concentrators that handle all complex processing tasks including protocol management, command interpretation, and data formatting. This segmentation allows each component to be optimized independently - readers remain low-cost while the concentrator provides the necessary sophistication.
2Adaptability or versatility
If multiple RFID readers/writers are deployed for item tracking applications, then system functionality is improved, but overall system cost increases
Solution Approach 1:
The concentrator acts as a central intermediary that manages multiple simple RFID readers/writers. Instead of each reader being sophisticated and expensive, the system uses many inexpensive readers coordinated by a single or few concentrators. The concentrator handles device management, memory allocation, and communication coordination, enabling multi-reader functionality while keeping individual reader costs low.
Solution Approach 2:
Multiple simple RFID readers/writers are merged under the control of a single concentrator, creating a coordinated multi-reader system. The concentrator combines the processing capabilities that would otherwise be distributed across multiple expensive readers, achieving the same functionality at lower overall cost by sharing intelligence centrally rather than duplicating it in each reader.
3Device complexity
If simple low-cost RFID readers/writers are used, then device cost is reduced, but processing capability and protocol support deteriorate
Solution Approach 1:
The concentrator serves as an intelligent intermediary that compensates for the limited processing capability of simple RFID readers/writers. It handles protocol interpretation, command routing, data formatting, and coordination tasks that would otherwise require sophisticated embedded processors in each reader. This allows the use of very simple, low-cost readers while maintaining full protocol support and processing capability through the concentrator.
Solution Approach 2:
The patent replaces the need for complex embedded processors and intelligence within each RFID reader with an external concentrator that provides processing services. Instead of having mechanical/electronic intelligence distributed in each reader, the processing capability is substituted by a centralized service provided by the concentrator, allowing readers to be extremely simple while the system as a whole remains sophisticated.
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 enables efficient and cost-effective reading, writing, and verification operations across multiple RFID readers, optimizing component usage and achieving high processing velocities while maintaining low costs and simplicity.
Implementation Method 1
RFID (radio frequency identification) is a technology that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency (RF) portion of the electromagnetic spectrum
Implementation Method 2
RFID (radio frequency identification) is a technology that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency (RF) portion of the electromagnetic spectrum
Implementation Method 3
RFID (radio frequency identification) is a technology that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency (RF) portion of the electromagnetic spectrum
Data Source
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AI summary
A RFID network system which allows the use of simple and low cost, reduced functionality RFID readers/writers thanks to the use of a plurality of concentrators which allow to distribute the processing work related to the reading, writing and verification of each reader, thus optimizing the use of each system component and achieving high processing velocities.