Cleaning robot and method for controlling the same
First Claim
1. A cleaning robot comprising:
- a main body;
a moving assembly mounted on a bottom surface of the main body to move the main body;
a cleaning tool assembly mounted on the bottom surface of the main body to clean a floor;
a detector to detect whether the main body is in a stuck state of being stuck in an internal space that is at least partially defined by an obstacle; and
a controller to control a backward movement of the main body upon determining that the main body is in the stuck state based on a detection signal of the detector,wherein the backward movement allows the main body to move in a direction opposite to a direction when entering into the internal space, which is at least partially defined by the obstacle,wherein when controlling the moving assembly, the controller controls rotation of the main body by a predetermined angle to re-determine whether the main body is in the stuck state, determines that the main body is in the stuck state and cannot escape from the stuck state when the obstacle is detected in the forward and backward directions of the main body, determines that the main body can escape from the stuck state when no obstacle is detected in at least one of the forward and backward directions of the main body, and controls bypass traveling when the main body can escape from the stuck state.
2 Assignments
0 Petitions
Accused Products
Abstract
A cleaning robot includes a non-circular main body, a moving assembly mounted on a bottom surface of the main body to perform forward movement, backward movement and rotation of the main body, a cleaning tool assembly mounted on the bottom surface of the main body to clean a floor, a detector to detect an obstacle around the main body, and a controller to determine whether an obstacle is present in a forward direction of the main body based on a detection signal of the detector, control the rotation of the main body to determine whether the main body rotates by a predetermined angle or more upon determining that the obstacle is present in the forward direction, and determine that the main body is in a stuck state to control the backward movement of the main body if the main body rotates by the predetermined angle or less.
12 Citations
12 Claims
-
1. A cleaning robot comprising:
-
a main body; a moving assembly mounted on a bottom surface of the main body to move the main body; a cleaning tool assembly mounted on the bottom surface of the main body to clean a floor; a detector to detect whether the main body is in a stuck state of being stuck in an internal space that is at least partially defined by an obstacle; and a controller to control a backward movement of the main body upon determining that the main body is in the stuck state based on a detection signal of the detector, wherein the backward movement allows the main body to move in a direction opposite to a direction when entering into the internal space, which is at least partially defined by the obstacle, wherein when controlling the moving assembly, the controller controls rotation of the main body by a predetermined angle to re-determine whether the main body is in the stuck state, determines that the main body is in the stuck state and cannot escape from the stuck state when the obstacle is detected in the forward and backward directions of the main body, determines that the main body can escape from the stuck state when no obstacle is detected in at least one of the forward and backward directions of the main body, and controls bypass traveling when the main body can escape from the stuck state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for controlling a cleaning robot including a main body comprising:
-
determining whether an obstacle is present in front of the main body in a traveling direction while performing traveling and cleaning; determining whether the main body is in a stuck state of being stuck in an internal space that is at least partially defined by an obstacle upon determining that the obstacle is present; and moving the main body backward in a direction opposite to the traveling direction of the main body to perform an attempt to escape from the internal space, which is at least partially defined by the obstacle, upon determining that the main body is in the stuck state, wherein the performing the attempt to escape comprises; rotating the main body by a predetermined angle, determining that the main body is in a stuck state and cannot escape from the stuck state when an obstacle is detected in the forward and backward directions of the main body, determining that the main body can escape from the stuck state when no obstacle is detected in at least one of the forward and backward directions of the main body, and controlling bypass traveling when the main body can escape from the stuck state. - View Dependent Claims (9)
-
-
10. An autonomous robot comprising:
-
a main body; a moving assembly mounted on a bottom surface of the main body to move the main body; a detector to detect whether the main body is in a stuck state of being stuck in an internal space that is at least partially defined by an obstacle; and a controller to control the moving assembly such that the main body travels in a direction opposite to a direction when entering into the internal space, which is at least partially defined by the obstacle, upon determining that the main body is in the stuck state based on a detection signal of the detector, wherein when controlling the moving assembly, the controller controls rotation of the main body by a predetermined angle to re-determine whether the main body can escape from the stuck state, determines that the main body is in the stuck state and cannot escape from the stuck state when the obstacle is detected in the forward and backward directions of the main body, determines that the main body can escape from the stuck state when no obstacle is detected in at least one of the forward and backward directions of the main body, and controls bypass traveling when the main body can escape from the stuck state. - View Dependent Claims (11, 12)
-
Specification