An RFID reader, also known as an interrogator, is a piece of hardware that provides the connection between the tag data and the enterprise system software that needs the information also called the front-end. Readers communicate with tags that are within the read range, performing any number of tasks including simple continuous inventorying, filtering (searching for tags that meet certain criteria), writing (or encoding) to selected tags, etc.
The reader uses an attached antenna to “turn-on” tags and capture data from tags. It then passes the data to a computer for processing. Just like RFID tags, there are many different sizes, formats and types of RFID readers. RFID readers can be fixed mounted in a stationary position in a portal, store or factory, or integrated into a mobile device such as a portable, handheld scanner. RFID readers can also be embedded in electronic equipment or devices and in vehicles.
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