Description
RFID stands for radio frequency identification. It is a form of wireless communication that can be used to identify a unique object by leveraging the radio frequency range of the electromagnetic spectrum. RFID technology allows digital data encoded in an RFID card to be captured by a reader.
Radio Frequency Identification (RFID) technology uses radio waves to identify people or objects. There is a device that reads information contained in a wireless device or “tag” from a distance without making any physical contact or requiring a line of sight.
Key Features and Characteristics:
- RFID Technology: RFID cards operate on RFID technology, which enables wireless communication between the card and an RFID reader. Unlike traditional magnetic stripe cards, RFID cards do not require physical contact with a reader.
- Frequency: RFID cards operate at various frequencies, including low-frequency (LF), high-frequency (HF), and ultra-high-frequency (UHF), depending on the application and range requirements.
- Embedded RFID Chip: RFID cards contain an embedded RFID chip or tag. This chip stores data and communicates with RFID readers using radio waves. The chip can be either passive or active, with passive chips powered by the reader’s electromagnetic field.
- Data Storage: RFID cards can store various types of data, such as identification numbers, access permissions, product information, and more. The amount of data storage capacity depends on the RFID chip’s specifications.
- Read Method: RFID cards are read by placing them within proximity of an RFID reader. The reader sends out radio waves, which power passive RFID chips, enabling them to transmit data back to the reader.
- Contactless Operation: RFID cards are contactless, meaning there’s no need to insert or swipe the card. Users simply hold or tap the card near an RFID reader to initiate data transfer.