Context-driven RFID tag and system content
First Claim
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1. A method for tracking an item having an associated radio frequency identification (RFID) tag, comprising:
- performing a first read of the tag with a RFID communication device to determine a first value for a physical attribute of the item;
performing a second read of the tag with the RFID communication device to determine a second value for the physical attribute of the item;
detecting a change based on whether the first value is different from the second value; and
updating a first information stored in the tag based on the detected change with the RFID communication device.
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Abstract
Methods and apparatuses for tracking an item having an associated radio frequency identification (RFID) tag are described. A change in a physical attribute of the item is detected. Information stored in the tag is updated based on the detected change. Information stored in a database may also be updated based on the detected change. In another aspect, a second tag associated with a person is determined to be located within a predetermined range of a first tag associated with an item. As a result, information is stored in the first tag regarding the person.
34 Citations
25 Claims
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1. A method for tracking an item having an associated radio frequency identification (RFID) tag, comprising:
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performing a first read of the tag with a RFID communication device to determine a first value for a physical attribute of the item; performing a second read of the tag with the RFID communication device to determine a second value for the physical attribute of the item; detecting a change based on whether the first value is different from the second value; and updating a first information stored in the tag based on the detected change with the RFID communication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for tracking an item having an associated radio frequency identification (RFID) tag, comprising:
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a RFID communication device performing a first read of the tag to determine a first value for a physical attribute of the item and performing a second read of the tag to determine a second value for the physical attribute of the item; and a monitor system coupled to the RFID communication system for detecting a change based on whether the first value is different from the second value, wherein the RFID communication device is configured to update a first information stored in the tag based on the detected change. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification