RFID (Radio Frequency Identification) door lock system uses radio waves to communicate between the reader and the tag to unlock the door. The system consists of two main components: a RFID reader and a RFID tag. The reader is installed on the door, and the tag is usually attached to a key fob or a card.
Here's how the system works:
- The RFID reader emits a radio signal in a particular frequency range, which is received by the tag.
- The RFID keyfob tag contains an antenna that receives the signal from the reader and sends a unique code back to the reader.
- The reader verifies the code with the database and, if the code matches, sends a signal to the door lock to open.
- The door unlocks, and the person can enter the room.
- If the RFID key tag does not contain a valid code, the door remains locked.
RFID door lock systems are commonly used in commercial and industrial settings to control access to secure areas. They are also used in hotels, apartments, and other facilities to provide convenient access for authorized personnel while keeping unauthorized individuals out.
