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Optical wireless sensor network

  • US 8,044,812 B2
  • Filed: 01/12/2009
  • Issued: 10/25/2011
  • Est. Priority Date: 01/12/2009
  • Status: Active Grant
First Claim
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1. A wireless sensor network comprising:

  • a receiver including a photodetector; and

    an array of sensor nodes positioned on a target subject, wherein each sensor node includesa sensor configured to sense a property of said target subject,a transmitter configured to emit outgoing optical energy, said outgoing optical energy being indicative of said property, anda photodetector configured to harvest incoming optical energy and convert said incoming optical energy into electrical energy useful to said transmitter,wherein said photodetector of said receiver is positioned to receive said outgoing optical energy and said transmitter is configured to emit said outgoing optical energy simultaneously with said photodetector of said sensor node receiving said incoming optical energy.

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