What is RFID card and how it works

What is RFID card?

Radio-frequency identification (RFID) uses magnetic attraction fields to mechanically establish and track tags connected to things. The tags contain electronically-stored data. Passive tags collect energy from a close-by RFID reader's interrogating radio waves.

How do RFID cards work?

RFID technology has 2 parts – the reader and therefore the RFID card.

The reader has 2 components – a transceiver and antenna. The reader sends energy to the cardboard via radio waves, generating power via a development referred to as magnetic attraction induction.

The RFID card has 2 components -  antenna and a semiconductor, connected along by a secure bond to form a computer circuit. The semiconductor stores and processes knowledge and therefore the antenna receives and transmits knowledge. Once energized the RFID card can transmit its knowledge, sometimes its serial range, to the reader in an exceedingly time unit.

Take a hotel card as an example, place hotel card to card encoder, and a magnetic attraction field is made between the encoder and therefore the kick in your hotel card. this permits data to be transferred from the reader to your card, indicating that you’ve either started or finished a leg of your journey. The hotel card receives data, and therefore the reader records the RFID cards distinctive user ID.

Are RFID cards secure?

Yes, RFID cards convenient than mechanical keys. perhaps one hundred mechanical keys have one key will open your room/drawer. However RFID cards got to program, and it's been encrypted.

How can I get RFID key card for my hotel?

Because of encrypted, you need to get together with hotel locks and key cards. If you don't have hotel door lock supplier, I can recommend one supplier to you, they are have professional technical team and service person.  Click below

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