×

Autonomous mobile robot

  • US 7,742,840 B2
  • Filed: 12/06/2005
  • Issued: 06/22/2010
  • Est. Priority Date: 12/14/2004
  • Status: Active Grant
First Claim
Patent Images

1. An autonomous mobile robot, comprising:

  • a moving mechanism;

    an autonomous movement controller configured to control the moving mechanism;

    a self-location recognition unit configured to sense a self-location of the autonomous mobile robot within an active area;

    a map data storage unit configured to store a map data on locations of marks formed on the active area;

    a slit light device configured to irradiate a detection area with slit light;

    an infrared device configured to irradiate a detection area with infrared rays;

    a switch determination unit configured to compare a mark-formed region stored in the map data storage unit and the self-location sensed by the self-location recognition unit, and then, configured to switch between the slit light device and the infrared device, based on a result of the comparison;

    a capture unit configured to capture an image of the detection area irradiated by the slit light or infrared rays;

    a road surface sensing unit configured to detect conditions of a road surface by analyzing the captured image of the detection area being irradiated with the slit light; and

    a mark sensing unit configured to detect marks by analyzing the captured image of the detection area being irradiated with the infrared rays,wherein the infrared device irradiates the detection area upon the self-location being within the mark-formed region, while the slit light device irradiates the detection area upon the self-location being out of the mark-formed region.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×