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Systems and methods for power efficient tracking

  • US 9,989,649 B2
  • Filed: 04/30/2015
  • Issued: 06/05/2018
  • Est. Priority Date: 05/06/2014
  • Status: Active Grant
First Claim
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1. A monitoring system, the monitoring system comprising:

  • a monitoring device including;

    a power status sensor operable to indicate a power status of the monitoring device;

    a GPS based location determination circuit operable to identify a GPS based location of the monitoring device using GPS signals;

    a Wi-Fi based location determination circuit operable to identify a Wi-Fi access point and a corresponding signal strength from a Wi-Fi signal; and

    a controller circuit operable to;

    selectively disable one of the GPS based location determination circuit or the Wi-Fi based location determination circuit based upon both;

    (a) the power status, and (2) a financial cost of resolving the location of the monitoring device based upon the Wi-Fi access point and the corresponding signal strength from the Wi-Fi signal; and

    transmit a transmission data set derived from one of the GPS based location determination circuit or the Wi-Fi based location determination circuit to a central monitoring controller, wherein the transmission data set includes the Wi-Fi access point and the corresponding signal strength to a Wi-Fi based location of the monitoring device, and wherein the central monitoring controller is operable to resolve the Wi-Fi access point and the corresponding signal strength to a Wi-Fi based location of the monitoring device by;

    transmitting the Wi-Fi access point and the corresponding signal strength to a service provider; and

    receiving the Wi-Fi based location from the service provider.

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