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Controlling mobile drive units with active markers

  • US 8,918,202 B2
  • Filed: 08/21/2012
  • Issued: 12/23/2014
  • Est. Priority Date: 08/21/2012
  • Status: Active Grant
First Claim
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1. A system of controlling a mobile drive unit with active markers, comprising:

  • a plurality of active markers in a two-dimensional pattern of active markers, an active marker operable to emit one or more instructions to a mobile drive unit proximate to the active marker;

    a management module operable to send instructions to the plurality of active markers;

    a mobile drive unit operable to;

    receive, at a first location, a signal emitted by the active marker at the first location;

    analyze the signal to determine an instruction, the instruction comprising directions to move to a second location;

    based on the instruction, move to the second location according to the instructions.

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