Autonomous robot localization

  • US 9,510,505 B2
  • Filed: 10/10/2014
  • Issued: 12/06/2016
  • Est. Priority Date: 10/10/2014
  • Status: Active Grant
First Claim
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1. A location estimation system for use with an autonomous lawn mowing robot, the system comprising:

  • a plurality of synthetic surfaces positioned with respect to a mowable space in an environment;

    a radiation source coupled to the lawn mowing robot;

    a detector coupled to the lawn mowing robot and configured to detect radiation reflected by objects in the environment; and

    a controller configured to controllably direct radiation from the radiation source to scan the environment and vary a scan rate of the directed radiation as a function of detected radiation reflected from one or more of the synthetic surfaces;

    wherein the controller is further configured to direct the radiation source to make a first scan of the environment at a first scan rate and wherein a modulator coupled to the radiation source and configured to modulate radiation emitted from the radiation source is configured to direct the radiation source to make a second scan of the environment, a limited portion of the second scan performed at a second scan rate different from the first scan rate.

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