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Radio frequency identification
(RFID) systems have two basic components - a transponder and a reader.
Transponders, often called tags, are placed on objects. Transponders come in many forms and sizes and offer varying degrees of functionality. Readers, or interrogators, are used to identify objects by communicating with the tags using a wireless, RF link. This method does not require the tag to be within line-of-sight, a primary benefit over barcodes, which require the label to be visible from the scanner.
The last basic component in an RFID system is the software or the Middleware, that enables the entire system. These systems can provide real-time updates at each point in the entire supply chain and as supply chain RFID software moves from closed-loop to open-loop systems, the need for more complex, scalable solutions becomes increasingly critical. |