| 摘要 |
A system for detecting the presence of firearms and identifying their unique status includes a radiofrequency identification chip supported within each firearm either by the manufacturer or by later retrofit. The RFID chip stores the unique serial number for the firearm, preferably in nonvolatile form. A reader for the chips may be used to transmit an interrogating signal from a distance which causes the chip to send a responsive signal including its serial number. The reader picks up the serial number and provides it to an associated computer. The serial number so obtained may be used with databases to maintain inventories of firearms or determine the history of firearms.
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