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COMMUNICATION PROTOCOL FOR LOW-POWER NETWORK APPLICATIONS AND A NETWORK OF SENSORS USING THE SAME

  • US 20100008272A1
  • Filed: 04/24/2008
  • Published: 01/14/2010
  • Est. Priority Date: 08/24/2005
  • Status: Active Grant
First Claim
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1. A communication process operating on a synchronized network of low-power sensors, comprising:

  • operating a first set of low-power sensors in a low-power sleep mode, each sensor having a network address;

    generating a gateway beacon using a gateway device, the gateway beacon being transmitted in a first time slice of a network time frame;

    periodically opening a short listen window in each of the sensors in the first set of low-power sensors, each respective listen window opening a short time period before the gateway beacon is expected and set to close a short period of time after the gateway beacon was expected;

    extracting, at each sensor in the first set of sensors, network address information from the gateway beacon;

    determining, at each respective sensor in the first set of sensors, if the network address information includes that respective sensor'"'"'s network address;

    returning to sleep mode each senor in the first set of sensors not having its respective network address included in the network address information; and

    executing an action for each senor in the first set of sensors having its respective network address included in the network address information.

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