POSITION DETECTION DEVICE FOR MOBILE ROBOT AND ROBOT CLEANER INCLUDING THE SAME
First Claim
1. A position detection device for a mobile robot, comprising:
- a light-emitting element for emitting light;
a light reception element on which light transferred from a bottom, of the light emitted from the light-emitting element and then reflected from an obstacle, is focused; and
a signal processing unit for calculating a distance between a position where the light incident on the light reception element is focused and the obstacle.
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Accused Products
Abstract
The present invention relates to a position detection device for a mobile robot, including a light-emitting element for emitting light, a light reception element on which light transferred from a bottom, of the light emitted from the light-emitting element and then reflected from an obstacle, is focused, and a signal processing unit for calculating a distance between a position where the light incident on the light reception element is focused and the obstacle. A position detection method using a mobile robot may include operating a robot cleaner, receiving light transferred from a bottom, of light emitted from the robot cleaner and then reflected from an obstacle, and detecting a distance between the robot cleaner and the obstacle from which the light is reflected, determining whether the distance between the robot cleaner and the obstacle increases, and determining whether the robot cleaner has approached the obstacle.
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Citations
16 Claims
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1. A position detection device for a mobile robot, comprising:
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a light-emitting element for emitting light; a light reception element on which light transferred from a bottom, of the light emitted from the light-emitting element and then reflected from an obstacle, is focused; and a signal processing unit for calculating a distance between a position where the light incident on the light reception element is focused and the obstacle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A robot cleaner, comprising:
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position detection devices for emitting light and detecting distances between the position detection devices and obstacles from which the light is reflected, wherein light transferred from a bottom is focused on the position detection devices; and an information processing unit for transmitting or receiving signals to or from the position detection devices and controlling a traveling unit so that the robot cleaner cleans a cleaning space of itself while the robot cleaner moves within the cleaning space. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A position detection method using a mobile robot, comprising:
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a first step of operating a robot cleaner; a second step of receiving light transferred from a bottom, of light emitted from the robot cleaner and then reflected from an obstacle, and detecting a distance between the robot cleaner and the obstacle from which the light is reflected; a third step of determining whether the distance between the robot cleaner and the obstacle increases; and a fourth step of determining whether the robot cleaner has approached the obstacle. - View Dependent Claims (16)
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Specification