RFID SYSTEM CAPABLE OF COUNTING THE QUANTITY

摘要

An RFID system capable of counting quantity of contents is provided to offer information for a cartridge and count the number of bullets remaining in the cartridge by enabling an RFID tag to count the number of bullets and transmit count information to a reader. The cartridge contains the bullets, a connector(300) is connected to the RFID tag(100), and the reader transceives data with the RFID tag. A counter board(200) is connected to the RFID tag through the connector and has a plurality of holes respectively passing the bullets. Metallic bands are formed to both sides of the holes. The RFID tag includes a counter for counting the number of bullets remaining in the cartridge by using the data received from the counter board. The counter counts the bullets remaining in the cartridge by using a capacitance value measured from the metallic bands.