The full name of RFID is called Radio Frequency Identification .
RFID is a wireless communication technology to Store unique ID information and to Read and write data to the tags . It is very difficult to counterfeit and there is a wide range of application such as payment , animal tracking , builging access control , library books management , l supply chain management, brand authentication etc.
Low Frequency (125V 134 Khz) ; High Frequency (13.56 Mhz) ; Ultra High Frequency – UHF (860 – 960 Mhz); Microwave (2.45 Ghz)
RFID readers is able to read from and write to RFID tags with contactless.The maximum read/write range between reader and tag is depending on reader and tag used which is also providing to read / write multiple tags at one time.
Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (11⁄2 in) or less, but it can be up to four inches in practice.
Commerce
NFC devices can be used in contactless payment systems, similar to those used in credit cards and electronic ticket smart cards and allow mobile payment to replace/supplement these systems.
Bootstrapping other connections
NFC offers a low-speed connection with simple setup that can be used to bootstrap more capable wireless connections.
Social networking
NFC can be used for social networking, for sharing contacts, text messages and forums, links to photos, videos or files[74] and entering multiplayer mobile games.
Identity and access tokens
NFC-enabled devices can act as electronic identity documents found in Passports and ID cards, and keycards for the use in Fare cards,
RFID tag is a microchip connected to an antenna. It’s combined an UID number and a memory to read / write data.
Passive tag is low cost , no battery required and short/ middle reading distance . Active tag is battery required and long reading distance .
3S – Speed, service and solution .