DUST SENSOR, DUST MEASUREMENT APPARATUS, ROBOT CLEANER AND CONTROL METHOD THEREOF

摘要

Disclosed is a dust measurement apparatus. The dust measurement apparatus comprises: a main body; a window part exposed to the outside through an opening part of the main body on which dust existing outside is piled up; a light emitting part which emits light to the window part; a light receiving part which receives the light reflected from the window part; and a control part which measures the amount of dust piled up on the window part based on the intensity of the emitted light and the received light.