Systems and methods for managing inventory of items held in a cabinet using radio frequency identification (RFID)
First Claim
1. A method for performing a dynamic scan operation in a Radio Frequency Identification (RFID) cabinet that includes a cabinet structure, a drawer configured to slide in and out of the cabinet structure, the drawer configured to hold RFID tagged items, and a scanner, the method comprising:
- receiving, at the scanner, a request for access to the drawer;
performing, at the scanner, a scan of the RFID tagged items before the drawer is removed;
releasing the drawer from the cabinet after a predetermined period of time;
continuing to scan, at the scanner, the RFID tagged items as the drawer is removed; and
unlocking an access cover of the drawer after the drawer has been moved to a predetermined location.
3 Assignments
0 Petitions
Accused Products
Abstract
A RFID cabinet comprises a cabinet structure and one or more drawers or shelves. Chambers are formed within the cabinet to house the one or more drawers or shelves. An RFID scanner is configured to scan items tagged with RFID tags in the chambers via one or more antennas. The antennas can include transmit and receive antennas or antennas configured to perform both transmit and receive functions. The drawers can have a access cover, or lid that can be controlled so as to control access to the drawer. The scanner can be configured to perform inventory control for the tagged items.
26 Citations
9 Claims
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1. A method for performing a dynamic scan operation in a Radio Frequency Identification (RFID) cabinet that includes a cabinet structure, a drawer configured to slide in and out of the cabinet structure, the drawer configured to hold RFID tagged items, and a scanner, the method comprising:
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receiving, at the scanner, a request for access to the drawer; performing, at the scanner, a scan of the RFID tagged items before the drawer is removed; releasing the drawer from the cabinet after a predetermined period of time; continuing to scan, at the scanner, the RFID tagged items as the drawer is removed; and unlocking an access cover of the drawer after the drawer has been moved to a predetermined location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for performing a scan operation in a Radio Frequency Identification (RFID) cabinet that includes a cabinet structure, a drawer configured to slide in and out of the cabinet structure, the drawer configured to hold RFID tagged items, and a scanner, the method comprising:
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generating a transmit signal comprising a maximum allowable power; interrogating the RFID tagged items via the plurality of antenna using the transmit signal; receiving responses via the plurality of antenna from the RFID tagged items in response to the transmit signal; reducing the power of the transmit signal; interrogating the RFID tagged items via the plurality of antenna using the transmit signal with reduced power; receiving responses via the plurality of antenna from the RFID tagged items in response to the transmit signal with reduced power; determining whether the responses to the transmit signal with reduced power are valid; and when it is determined that the responses are valid, then repeating the steps until the responses are invalid.
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Specification