| 摘要 |
An anti-theft RFID system is provided for monitoring the presence of a plurality of items within a predefined area. Each of the items is attached to an RFID tag. The system includes an RFID reader 105 configured to transmit an interrogating signal to the tags, and retrieve data from the tags; a processor 103 connected to the reader configured to process the data that the reader retrieves from the tags; and a display 101 connected to the processor 103 configured to display a result processed by the processor. The processor is arranged to update a first counter value indicating the number of tagged items located within the predefined area and to update a second counter value indicating the number of tagged items being taken away from the predefined area. The display is configured to display the values of the first and the second counters and thereby assist an operator to determine the occurrence of a security event. The items may be luxury items such as jewellery or watches. The predefined area may be a display shelf or tray.
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