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AGV traffic management system

  • US 10,255,582 B2
  • Filed: 08/18/2016
  • Issued: 04/09/2019
  • Est. Priority Date: 08/18/2016
  • Status: Active Grant
First Claim
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1. An inventory management system, comprising:

  • a plurality of autonomous guided vehicles (AGVs) configured to move within a materials handling facility according to generated paths, an AGV of the plurality of AGVs comprising;

    a receiver configured to receive radio signals; and

    a transmitter configured to communicate with a management system; and

    a first area in the materials handling facility comprising;

    a first radio located at a first distance from the first area, the first radio configured to transmit a first signal at a first frequency that causes the AGV to reduce a current traveling speed; and

    a second radio located at a second distance from the first area, the second radio configured to transmit a second signal at a second frequency that causes the AGV to stop moving,the management system configured to;

    receive, from a particular AGV of the plurality of AGVs, information identifying a location of the particular AGV within the materials handling facility and an indication of the particular AGV receiving the first signal or the second signal via an associated receiver;

    generate new paths for the plurality of AGVs within the materials handling facility thereby avoiding the first area; and

    provide the new paths to one or more AGVs of the plurality of AGVs.

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