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SURFACE TYPE DETECTION FOR ROBOTIC CLEANING DEVICE

  • US 20190018420A1
  • Filed: 07/11/2017
  • Published: 01/17/2019
  • Est. Priority Date: 07/11/2017
  • Status: Active Grant
First Claim
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1. A robotic cleaning device comprising:

  • a housing;

    a drive motor mounted in the housing;

    a drive system, coupled to the drive motor, for moving the robotic cleaning device;

    a light emitter configured to transmit a light beam at a surface;

    a first polaroid filter;

    at least a first light detector configured to detect an intensity of a first reflected portion of the light beam after the first reflected portion is filtered by the first polaroid filter;

    a second polaroid filter;

    the at least a first light detector being configured to detect an intensity of a second reflected portion of the light beam after the second reflected portion is filtered by the second polaroid filter; and

    either;

    a processor; and

    a non-transitory computer-readable medium including instructions that, when executed by the processor, cause the processor to;

    send the intensity of the first reflected portion of the light beam and the intensity of the second reflected portion to a device remote from the robotic cleaning device, wherein the device is configured to determine a type of the surface based on the intensity of the first reflected portion and the intensity of the second reflected portion;

    ordetermine a type of the surface based on the intensity of the first reflected portion and the intensity of the second reflected portion;

    orone or more arithmetic logic units to determine a type of the surface based on the intensity of the first reflected portion and the intensity of the second reflected portion.

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