The invention belongs to the technical field of unmanned aerial vehicle application, and particularly relates to an unmanned aerial vehicle external wall cleaning
system and method. The external wallcleaning
system comprises an unmanned aerial vehicle, a cleaning device and a power supply device. A
control system is arranged in the unmanned aerial vehicle and used for keeping communication with amaster
control room. The cleaning device comprises a
peripheral high-pressure steam box, a water scraper detachably connected with the unmanned aerial vehicle, and a spraying
nozzle arranged on the lower side of the water scraper. The high-pressure steam box is connected with the spraying
nozzle through a steam hose. Through the
evaporation and
decomposition effect of the water scraper and high-pressure steam, the dust on the surface of a glass
curtain wall and / or all particle impurities and stains in
haze can be effectively cleaned away; in addition, the water scraper is replaced with a
drying device, after cleaning is conducted through high-pressure steam, the
drying device conducts
drying in time, the contact between the target object and the cleaning device is avoided, and the effectis particularly obvious for various non-plane solids. High-pressure steam is
environmentally friendly, free of
contamination, sufficient in resource, free of recycling and capable of greatly saving cost.