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Tracking and accountability device and system

  • US 10,511,951 B2
  • Filed: 11/29/2017
  • Issued: 12/17/2019
  • Est. Priority Date: 01/17/2017
  • Status: Active Grant
First Claim
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1. A communication system comprising:

  • a command unit coupled to a wireless communication network;

    a processing unit coupled to the wireless communication network;

    a first personal tracking unit (PTU) having a first mobile transceiver in communication with the wireless communication network, the first PTU coupled to a device having a first set of user identification data of a first individual, the first PTU being operative to transmit signals representing the first individual'"'"'s location over the wireless communication network to the processing unit; and

    a second PTU having a second mobile transceiver, the second PTU coupled to a second set of user identification data of a second individual and being operative to transmit signals representing the second individual'"'"'s location (i) to the processing unit over the wireless communication network if the second PTU is within a first distance; and

    (ii) to the first PTU if the second PTU is within the first distance to the first PTU, wherein the processing unit couples a plurality of location data points received from the first and second PTUs within a structure to generate a map of the structure, and wherein a portion of the map of the structure is selected based on the plurality of location data points received from the first and second PTUs and transmitted from the processing unit to the PTU within that portion.

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