RFID (Radio Frequency Identification) is automatic identification technology which uses radio-frequency electromagnetic fields to identify objects carrying tags when they come close to a reader.
RFID was first used during World War II to distinguish between ally and enemy airplanes (IFF: Identify Friendly Foe) and later was instrumental in producing anti-theft devices for retail stores.
In the modern Internet of Things (IoT), this technology is being utilized by many commercial operations to track and monitor equipment and fleet vehicles.
Mikel Choperena, of Farsens.com, is a technology writer who specializes in autonomous sensors and RFID. We recently checked in with Mikel to learn how RFID sensors work and how they're being used in service equipment and elsewhere. Here's what he had to say: