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Navigation method and system for autonomous machines with markers defining the working area

  • US 6,417,641 B2
  • Filed: 04/23/2001
  • Issued: 07/09/2002
  • Est. Priority Date: 05/30/1995
  • Status: Expired due to Term
First Claim
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1. A system for automatically operating a robot within a working area comprising:

  • at least one indicator positionable to define the boundary of said working area; and

    a robot comprising;

    a sensor adapted for detecting said indicator;

    a processor in operative communication with said sensor, said processor programmed to;

    initially generate a map of said working area in accordance with at least a substantial traversal of said working area along a path corresponding to the position of said at least one indicator; and

    correct the position of said robot in accordance with said generated map when said at least one indicator is reached;

    a locator configured for determining the coordinates of said robot relative to an arbitrary origin at any specific time;

    memory for storing values generated by said processor;

    a direction finder configured for determining the direction of travel of said robot; and

    a motion controller configured for causing said robot to move in a substantially continuous manner.

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