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Bi-directional communication system for logistic tracking

  • US 9,959,434 B1
  • Filed: 10/08/2016
  • Issued: 05/01/2018
  • Est. Priority Date: 10/08/2016
  • Status: Active Grant
First Claim
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1. A method of operating a bi-directional communication system between a plurality of communication devices which comprise at least one communication controller and a plurality of nodes including a first node, the method comprising:

  • periodically broadcasting a beacon signal from said communication controller at a broadcast interval via a channel of a first host, said beacon signal containing a first address of said communication controller;

    periodically scanning said beacon signal on said first host by said first node;

    upon detecting of said beacon signal by said first node, transmitting an identification payload from said first node to said communication controller; and

    upon receipt of said identification payload by said communication controller;

    transmitting an acknowledgement signal to said first node;

    wherein said acknowledgement signal further contains a command instructing at least one subsequent action to be taken by said first node;

    wherein said at least one subsequent action is said first node entering sleep mode.

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