Radio Frequency Identification (RFID)
Radio frequency identification (RFID) is a radio technology used for contactless identification and location of objects or living beings. An RFID system comprises a transponder containing a unique code and a reader that can read this code wirelessly.
In industry, RFID is used for access authorisations, tracking goods and locating people, among other applications. Data is transmitted via electromagnetic waves and can be read using an RFID scanner.