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Map production method, mobile robot, and map production system

  • US 10,006,772 B2
  • Filed: 06/27/2016
  • Issued: 06/26/2018
  • Est. Priority Date: 07/09/2015
  • Status: Active Grant
First Claim
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1. A map production method to be performed by a first mobile robot which moves in a first region and includes a first sensor and a second sensor, the map production method comprising:

  • acquiring first information from the first sensor, the first information indicating an amount of movement of the first mobile robot;

    acquiring second information from the second sensor, the second information indicating a distance from a first object present in an observation region of the first mobile robot to the first mobile robot;

    acquiring third information from a third sensor provided in the first region and being physically separate from the first mobile robot, the third information including video information of an observation region of the third sensor;

    acquiring a sensed region of the second sensor which is calculated based on the first information and the second information;

    acquiring a sensed region of the third sensor which is calculated based on the third information;

    judging whether the sensed region of the second sensor overlaps with the sensed region of the third sensor; and

    updating map information of the first region which is stored in advance in the first mobile robot for a second region in which the first object exists if the sensed region of the second sensor is judged to overlap with the sensed region of the third sensor.

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