PURPOSE: To accurately discriminate the type of a cleaned surface by receiving reflected light of a light emitting element for radiating infrared rays or the like onto the cleaned surface by a light receiving part composed of plural light receiving elements, and detecting dispersion of output thereof by a signal processing part so as to discriminate the type of a floor-surface by a discriminating part.
CONSTITUTION: A sensor part 4 placed in a floor nozzle is provided with a light emitting element 8 for radiating infrared rays onto a cleaned surface, and a light receiving part 9, wherein plural light receiving elements having visible ray cut filters are arranged in a line for receiving the infrared rays. Based on output of a signal processing part 10 for detecting a change quantity with elapse of time of output dispersion of the light receiving part 9, the type of floor is discriminated by a discriminating part 11. Namely, the light receiving part 9 inputs a voltage in accordance with a reflectance of the cleaned surface and a distance to the cleaned surface at each point. As factors to exert influences on a reflected light quantity, uneveness, color and material quality of the cleaned surface are listed. The type of the cleaned surface is discriminated by automatic discrimination of the sensor part 4, and a motor drive part 6 rotates a floor brush in the case of a carpet while it does not rotate the brush in the case of a tatami (Japanese floor mat) and a board floor.
| JP2010154714 | POWER CONVERTER AND VACUUM CLEANER USING THE SAME |
| JP6685751 | Vacuum cleaner |
| WO/2019/167314 | CLEANING SYSTEM |
ABE HIDEJI
ISHIMARU NAOAKI
