RFID (Radio Frequency Identification)
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RFID (Radio Frequency Identification) is a technology that uses electromagnetic fields to automatically identify and track tags attached to objects or living beings. RFID tags contain electronically stored information that can be remotely read using an RFID reader or scanner. The tags consist of an integrated circuit (IC) and an antenna, which enable them to transmit data wirelessly to the reader when activated by radio waves. RFID technology is widely used in various applications, including inventory management, access control, asset tracking, contactless payment systems, and supply chain logistics. RFID systems can operate in different frequency bands, including low-frequency (LF), high-frequency (HF), and ultra-high-frequency (UHF), each offering different ranges and capabilities. RFID offers advantages over traditional barcode-based identification systems, including faster read speeds, longer read ranges, and the ability to read multiple tags simultaneously. However, RFID technology also raises privacy and security concerns, as it can potentially be used for unauthorized tracking or surveillance.
References: - https://en.wikipedia.org/wiki/Radio-frequency_identification
Radio-frequency identification