Robot cleaner
First Claim
Patent Images
1. A robot cleaner comprising:
- a main body;
a suctioning unit that suctions foreign substances on a cleaning area, the suctioning unit disposed in the main body;
a light transmitting unit that emits light;
an image sensor that senses light reflected or scattered by an obstacle from the light emitted from the light transmitting unit;
a base supporting the light transmitting unit and the image sensor, the base disposed in the main body, the base being rotatable with respect to the main body;
a rotation drive unit that rotates the base;
a tilting unit that tilts the light transmitting unit and the image sensor; and
a controller that obtains a location of the obstacle from a rotational angle of the base rotated by the rotation drive unit, a tilted angle of the light transmitting unit and the image sensor tilted by the tilting unit, and a location of a spot formed on the image sensor.
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Accused Products
Abstract
A robot cleaner includes a main body, a light transmitting unit, an image sensor, a base, a rotation drive unit, a tilting unit, and a tilting drive unit. The light transmitting unit emits light. The light emitted from the light transmitting unit and reflected or scattered is formed on the image sensor. The base supports the light transmitting unit and the image sensor and is rotatably disposed in the main body. The rotation drive unit rotates the base. The tilting unit tilts the light transmitting unit and the image sensor.
52 Citations
20 Claims
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1. A robot cleaner comprising:
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a main body; a suctioning unit that suctions foreign substances on a cleaning area, the suctioning unit disposed in the main body; a light transmitting unit that emits light; an image sensor that senses light reflected or scattered by an obstacle from the light emitted from the light transmitting unit; a base supporting the light transmitting unit and the image sensor, the base disposed in the main body, the base being rotatable with respect to the main body; a rotation drive unit that rotates the base; a tilting unit that tilts the light transmitting unit and the image sensor; and a controller that obtains a location of the obstacle from a rotational angle of the base rotated by the rotation drive unit, a tilted angle of the light transmitting unit and the image sensor tilted by the tilting unit, and a location of a spot formed on the image sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A robot cleaner comprising:
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a main body; a suctioning unit that suctions foreign substances on a cleaning area, the suctioning unit disposed in the main body; a light transmitting unit that emits laser beam; an image sensor that senses light reflected or scattered by an obstacle from the laser beam emitted from the light transmitting unit; a base supporting the light transmitting unit and the image sensor, the base being rotatable with respect to the main body; a rotation drive unit that rotates the base, the rotation drive continuously rotating the base more than 360 degree while the light transmitting unit emits the laser beam; and a tilting unit that tilts the light transmitting unit and the image sensor about the base. - View Dependent Claims (19, 20)
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Specification