Radio Frequency identification (RFID) refers to the technology that uses wireless communication between objects (or tags) and inquiring devices (or readers) to automatically track and identify these objects. The tag transmission range is limited to a few meters from the reader. A clear line of sight between the reader and the label is not necessary.
Several industry organizations, including the International Standards Organization (ISO) and the International Electrotechnical Commission (IEC), regulate and define RFID interoperability standards.
Radio Frequency Identification (RFID) Most tags contain at least one integrated circuit (IC) and antenna. The microchip stores the information and is responsible for managing radio frequency (RF) communication with the reader. Passive tags have no independent energy source and rely on an external electromagnetic signal provided by the reader to power their operation. Active tags contain independent energy sources, such as batteries. As a result, they may have increased processing, transmission capacity and range.
Early demonstrations of RFID date back to the 1970s. The first patent related to RFID was issued in 1983.
Some of the most common applications of this technology include retail supply chains, military supply chains, automated payment methods, luggage tracking and management, document tracking, and drug management, to name a few.
Despite the many benefits RFID offers, there are security concerns. Since certain tags can be read from a distance, rogue individuals can carry customized readers to scan RFID-enabled passports and obtain holder information from a distance.
Radio Frequency Identification (RFID) technology, also known as radio frequency identification (RFID), is a communication technology that can identify a specific target through radio signals and read and write related data without the need to establish mechanical or optical contact between the identification system and the specific target. Radio signals transmit data from a tag attached to an item via an electromagnetic field tuned to a radio frequency to automatically identify and track the item. Some labels can get energy from the electromagnetic field emitted by the identifier during identification, and do not need a battery; There are also tags that have their own power source and can actively emit radio waves. The tags contain electronically stored information that can be identified within a few meters. Unlike bar codes, RF tags do not need to be in the line of sight of the identifier and can also be embedded in the object being tracked.