Cleaning robot having auto-return function to charging-stand and method using the same
First Claim
1. A cleaning robot having an auto-return function to a charging-stand, the cleaning robot is characterized by photographing to store an image of the charging-stand, when detecting a return signal of the charging-stand, photographing an external image, confirming a position of the charging-stand from the photographed external image, and returning to the charging-stand.
1 Assignment
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Accused Products
Abstract
Disclosed herein is a cleaning robot, and more particularly a cleaning robot comprising a camera unit for photographing an external image containing the charging-stand image, converting it into electrical image information, and outputting externally; and a microprocessor for storing the image information inputted the camera unit, acquiring position information of the charging-stand from the external image on the basis of the image information of the charging-stand in detecting a return signal, and causing the cleaning robot to be returned to the charging-stand. The cleaning robot having an auto-return function to a charging-stand detects a direction and position of the charging-stand using image information of the charging-stand, and thereby correctly and rapidly returning to the charging-stand for the cleaning robot.
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Citations
20 Claims
- 1. A cleaning robot having an auto-return function to a charging-stand, the cleaning robot is characterized by photographing to store an image of the charging-stand, when detecting a return signal of the charging-stand, photographing an external image, confirming a position of the charging-stand from the photographed external image, and returning to the charging-stand.
- 9. A cleaning robot having an auto-return function to a charging-stand, the cleaning robot is characterized by photographing to store images of the charging-stand and a surrounding thereof, when detecting a return signal of the charging-stand, photographing an external image detecting an surrounding image around the charging-stand from the photographed external image, confirming a position of the charging-stand, and returning to the charging-stand.
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16. A method for auto-returning to a charging-stand for a cleaning robot, the method comprising the steps of:
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a) acquiring image information of the charging-stand from images inputted through a camera, and storing the acquired image information of the charging-stand for the cleaning robot;
b) receiving information of a power level remained on a battery of the cleaning robot, the a power level remained on the battery being periodically measured;
c) outputting a signal for driving the camera in order to acquire a surrounding image when the a power level remained on the battery is below a predetermined value; and
d) searching the image information of the charging-stand acquired and stored by accomplishing the step a) in the image inputted through the camera, confirming a position of the charging-stand, and thereby outputting a control signal for returning the cleaning robot to the charging-stand. - View Dependent Claims (17, 18, 19, 20)
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Specification