Tracking variable conditions using radio frequency identification
First Claim
1. A method for obtaining and processing information from a radio frequency identification tag, the method comprising:
- transmitting a radio frequency signal;
receiving a backscattered radio frequency signal in response to the radio frequency signal, the backscattered radio frequency signal including data identifying the radio frequency identification tag, variable data representing a measurement taken by the radio frequency identification tag, and non-variable data identifying the variable data as measured data; and
storing, in a database, the variable data in association with the data identifying the radio frequency identification tag.
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Abstract
A method and system for tracking variable conditions using radio frequency identification (RFID) are disclosed. In embodiments of the present invention, an RFID sensor tag is used to measure a condition. The condition can be any measurable condition such as location, temperature, humidity, pressure, time, date, inertial measurements, etc. Variable data representing the measured condition is read from the RFID sensor tag in order to track the measured condition. The variable data can be read from RFID sensor tags in addition to reading tag identification data from RFID tags, so that the variable data can be associated with tag identification data.
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Citations
18 Claims
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1. A method for obtaining and processing information from a radio frequency identification tag, the method comprising:
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transmitting a radio frequency signal; receiving a backscattered radio frequency signal in response to the radio frequency signal, the backscattered radio frequency signal including data identifying the radio frequency identification tag, variable data representing a measurement taken by the radio frequency identification tag, and non-variable data identifying the variable data as measured data; and storing, in a database, the variable data in association with the data identifying the radio frequency identification tag. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A radio frequency identification reader device comprising:
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a memory configured to; store data; a transceiver configured to; transmit a radio frequency signal; receive a backscattered radio frequency signal in response to the radio frequency signal, the backscattered radio frequency signal including data identifying a radio frequency identification tag, variable data representing a measurement taken by the radio frequency identification tag, and non-variable data identifying the variable data as measured data; and a processor configured to; store, in a database, the variable data in association with the data identifying the radio frequency identification tag. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An apparatus for obtaining and processing information from a radio frequency identification tag comprising:
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means for transmitting a radio frequency signal; means for receiving a backscattered radio frequency signal in response to the radio frequency signal, the backscattered radio frequency signal including data identifying the radio frequency identification tag, variable data representing a measurement taken by the radio frequency identification tag, and non-variable data identifying the variable data as measured data; and means for storing, in a database, the variable data in association with the data identifying the radio frequency identification tag. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification