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Finding sensor data in an RFID network

  • US 8,810,369 B2
  • Filed: 11/16/2009
  • Issued: 08/19/2014
  • Est. Priority Date: 11/19/2008
  • Status: Active Grant
First Claim
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1. A method of operating an automatic data collection system, comprising:

  • extracting a command encoded in a first machine-readable data carrier, wherein extracting the command comprises reading the first machine-readable data carrier and interpreting an extended channel portion of the first machine-readable data carrier;

    associating the command with sensor data of a second machine-readable data carrier identified by data encoded in the first machine-readable data carrier; and

    directing an RFID tag reader to execute the command encoded in the first machine-readable data carrier, by searching the second machine-readable data carrier for an indicator that identifies a directory of data types, searching the directory of data types for data that corresponds to the sensor data, and reading only the sensor data indicated in the directory of data types from the second machine-readable data carrier.

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