Window cleaning apparatus and method for controlling movement thereof
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United States of America Patent
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Sep 9, 2014
Grant Date -
Feb 6, 2014
app pub date -
Apr 29, 2011
filing date -
Apr 29, 2011
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Abstract
Provided are a window cleaning apparatus including first and second cleaning units which are respectively attached on both surfaces of a window using a magnetic force to move together with each other, and a method for controlling a movement of the window cleaning apparatus. The window cleaning apparatus includes a direction detecting sensor, a control part, a collision sensing part, and an offset setting part. The direction detecting sensor is provided to at least one of the first and second cleaning units to detect a moving direction of the window cleaning apparatus. The control part controls a movement of the window cleaning apparatus, based on the moving direction detected by the direction detecting sensor. The collision sensing part senses a shock to the window cleaning apparatus. The offset setting part sets a direction offset of the direction detecting sensor when the window cleaning apparatus collides with a frame of the window.
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