Autonomous coverage robot navigation system

  • US 8,606,401 B2
  • Filed: 07/01/2010
  • Issued: 12/10/2013
  • Est. Priority Date: 12/02/2005
  • Status: Active Grant
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First Claim
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1. A navigation beacon for controlling movement of a mobile robot in a first area and a second area, the mobile robot cleaning the first area and the second area as the mobile robot moves in the first area and the second area, the navigation beacon comprising:

  • a portable housing;

    a power source in the portable housing;

    a gateway beacon emitter in the housing that is operable to emit a gateway marking emission when the mobile robot is within a field of detection, the field of detection extending generally between the first area and the second area, the gateway marking emission being detectable by the mobile robot for preventing the mobile robot from moving from one of the areas, through the field of detection, to the other of the areas; and

    a switch in the housing that is operable to switch the navigation beacon to be in one of an OFF mode in which the gateway beacon emitter is in an OFF state, a confinement mode in which the gateway beacon emitter is in an ON state, and a navigation mode in which the gateway beacon emitter is in the ON state and automatically switches to the OFF state in response to a predetermined condition,wherein the predetermined condition includes the gateway marking emission being encountered a plurality of times before the predetermined condition is satisfied to automatically switch the gateway beacon emitter to the OFF state.

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