MOBILE ROBOT AND CONTROLLING METHOD THEREOF
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are a mobile robot and a controlling method thereof. The mobile robot comprises: a case; and a sensor unit having two or more sending portions and two or more receiving portions arranged on an outer surface of the case separately and alternately. The plurality of sending portions and receiving portions are arranged in an alternating manner, thereby having a directivity. Also, since signals received through the receiving portions are judged based on a reference value, an area unallowable to be detected for an obstacle sensing is minimized, which allows an obstacle to be detected more accurately. When the obstacle corresponds to a side wall on the basis of a moving path of the mobile robot, a distance between the side wall and the mobile robot is calculated based on signals received by the receiving portion closest to the side wall. Accordingly, the mobile robot can move with maintaining a constant distance from the side wall.
29 Citations
40 Claims
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1-22. -22. (canceled)
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23. A mobile robot, comprising:
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a case; and a sensor unit having two or more sending portions and two or more receiving portions arranged on an outer surface of the case separately and alternately, wherein the receiving portions comprise; a first receiving portion disposed at a front center of the case; a second receiving portion disposed at a left side of the first receiving portion with a spacing distance therebetween; and a third receiving portion disposed at a right side of the first receiving portion with a spacing distance therebetween. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A controlling method for a mobile robot, comprising:
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sending signals for detecting an obstacle toward a moving direction of a mobile robot by using two or more sending portions separated from each other; receiving signals reflected by the obstacle by using two or more receiving portions arranged separately and alternately from the sending portions; and recognizing a position of the obstacle based on the two or more received signals. - View Dependent Claims (31, 32)
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33. A mobile robot, comprising:
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a case; a sensor unit having two or more sending portions and two or more receiving portions arranged on an outer surface of the case separately and alternately; and a controller for detecting a position of an obstacle based on two or more signals received by the sensor unit, wherein when the obstacle corresponds to a side wall on the basis of a moving path of the mobile robot, the controller calculates a distance between the side wall and the mobile robot based on signals received by the receiving portion closest to the side wall. - View Dependent Claims (34, 35, 36)
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37. A method for controlling a mobile robot to detect an obstacle, comprising:
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detecting a wall surface around the mobile robot by using a sensor unit having two or more sending portions and two or more receiving portions arranged separately and alternately; and moving the mobile robot by constantly maintaining a distance between the wall surface and the mobile robot according to values detected by the sensor unit. - View Dependent Claims (38, 39, 40)
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Specification