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Radio frequency identification (RFID) based sensor networks

  • US 20050088299A1
  • Filed: 01/22/2004
  • Published: 04/28/2005
  • Est. Priority Date: 10/24/2003
  • Status: Active Grant
First Claim
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1. An radio frequency (RF) addressable sensor comprising:

  • one or more sensor elements;

    a sensor interface having an analog to digital converter coupled to the one or more sensor elements;

    at least one antenna;

    an RF power and communication interface coupled to the at least one antenna and the sensor interface;

    a controller coupled to the RF power and communications interface and the sensor interface; and

    a memory coupled to the controller and the sensor interface, wherein the memory is configured to store a tag identification number;

    wherein the RF addressable sensor communicates with a wireless device that is coupled to a communications network; and

    wherein the wireless device communicates with the RF addressable sensor to obtain sensor data for transmission over the communications network.

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