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Title:
CLEANING DEVICE, CLEANING SYSTEM FOR SOLAR PHOTOVOLTAIC DEVICES, AND CLEANING METHOD FOR SOLAR PHOTOVOLTAIC DEVICES
Document Type and Number:
WIPO Patent Application WO/2020/189620
Kind Code:
A1
Abstract:
The invention is provided with: a body that can move along a surface to be cleaned; a wiper that is installed on the body in contact with the surface to be cleaned and that has a material for adsorbing dirt on the surface to be cleaned; a first sensor that is installed facing the surface to be cleaned at the front of the body in the direction of motion and that detects dirt on the surface to be cleaned; a second sensor that is installed facing the surface to be cleaned at the rear of the body in the direction of motion and that detects, on the side opposite to the first sensor as seen from the wiper, dirt on the surface to be cleaned; and a control unit that controls motion of the body along the surface to be cleaned. While the body is moving, the control unit controls the direction of motion of the body so that motion continues when the level of dirt detected by the second sensor is lower than a designated level and so that the same location is passed over again when the detected level is higher than the designated level.

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Inventors:
IYATANI KAZUSHI (JP)
ABIKO YOSHIYA (JP)
MIKAMI RUI (JP)
TAMURA SHINJI (JP)
GIUDICELLI EMMANUEL ALEXANDRE (JP)
KOGETSU YOSHIKAZU (JP)
IWASAKI TAKASHI (JP)
Application Number:
PCT/JP2020/011418
Publication Date:
September 24, 2020
Filing Date:
March 16, 2020
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
A47L9/28; A47L11/38; B08B1/00; H02S40/10
Foreign References:
JP2004243202A2004-09-02
JP2017038873A2017-02-23
JP2018057066A2018-04-05
JP2016209801A2016-12-15
JP2017034932A2017-02-09
JP2019005422A2019-01-17
JP2014236838A2014-12-18
JP2016178769A2016-10-06
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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