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Abstract
A main application in radio frequency identification (RFID) sensor networks is the function that processes real-time tag information after gathering the required data from multiple RFID tags. The component technologies that contain an RFID reader, called the interrogator, which has a tag chip, processors, coupling antenna, and a power management system have advanced significantly over the last decade. This paper presents a system implementation for interoperation between an UHF RFID reader and a TCP/IP device that is used as a gateway. The proposed system consists of an UHF RFID tag, an UHF RFID reader, an RF end-device, an RF coordinator, and a TCP/IP I/F. The UHF RFID reader, operating at 915 MHz, is compatible with EPC Class-0/Gen1, Class-1/Gen1 and 2, and ISO18000-6B. In particular, the UHF RFID reader can be combined with the RF end-device/coordinator for a ZigBee (IEEE 802.15.4) interface, which is a low-power wireless standard. The TCP/IP device communicates with the RFID reader via wired links. On the other hand, it is connected to the ZigBee end-device via wireless links. The web based test results show that the developed system can remotely recognize information of multiple tags through the interoperation between the RFID reader and the TCP/IP device.
Highlights
The radio frequency identification (RFID) technology was originally developed by the US military for the purpose of missile tracking
We focus on a system co-implementation of a UHF RFID reader and a TCP/IP device via wired and/or wireless communication channels
We introduced a system implementation of a UHF RFID reader and a TCP/IP device
Summary
The radio frequency identification (RFID) technology was originally developed by the US military for the purpose of missile tracking. An RFID is a radio frequency system that has a tag (or a transponder) consisting of an electronic microchip and a reader (or interrogator) for reading and writing data. The data exchange between the tag and the reader is achieved by using magnetic or electromagnetic fields. After decoding the tag data, the reader sends the result to the host computer. Because the RFID has a relatively long transmission range and a multi-tag recognition ability, it has the potential to become a core replacement technology for the conventional barcode systems used in the fields of safety, security, and logistics [1,2,3]
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