what is an rfid tag

RFID (Radio Frequency Identification) tags are small electronic devices that store information and can communicate with other devices using radio waves. They are used in a variety of applications, from tracking inventory in warehouses to monitoring the movements of livestock. RFID tags are a type of tracking system that uses smart barcodes to identify items and transmit data from the tag to a reader, which then transmits the information to an RFID computer program. RFID tags are made up of three pieces: a microchip, an antenna for receiving and transmitting the signal, and a substrate. There are two main types of RFID tags: battery-operated and passive. Passive RFID tags use electromagnetic energy transmitted from an RFID reader, while battery-operated RFID tags have their own power source. RFID tags are used in many industries, such as tracking the progress of an automobile through the assembly line, tracking pharmaceuticals through warehouses, and expediting checkout in shops. They can also be used to track vehicles, pets, and patients with Alzheimers disease.