Air blowing drone and dust cleaning device for solar panels

A method of blowing air by an air blowing device integrated with a rotary-wing drone, comprising:

• obtaining, by a camera, images of surrounding environment of the air blowing device and the rotary-wing drone;
• analyzing, by processing circuitry, the images to obtain one or more parameters of the air blowing device and the rotary-wing drone;
• and
• blowing, by the air blowing device, air downwardly from the rotary-wing drone when in flight based on the analysis, wherein the air blowing device comprises:
• a top plate and a bottom plate, the top plate and the bottom plate being in a center portion of a central body portion of the rotary-wing drone, the bottom plate defines a first opening,
• one or more pillars connecting the top plate and the bottom plate;
• an extendable cone comprising one or more truncated conical sections, wherein the one or more truncated conical sections are configured to nest such that a first section with a largest diameter is on the outside and a second section with a smallest diameter is on the inside when nested;
• a centrifugal propeller unit mounted to the top plate, the centrifugal propeller unit comprising a propeller and a motor configured to drive the propeller;
• and
• one or more batteries electrically connected to the motor and disposed between the centrifugal propeller unit and the bottom plate, the one or more batteries surrounded by lower portions of the one or more pillars.

A rotary-wing drone, comprising:

• a central body portion,
• a plurality of rotary propellers mounted at a periphery of the central body portion,
• an air blowing device configured to blow air downwardly from the rotary-wing drone when in flight, wherein the air blowing device comprises:
• a base being in a center portion of the central body portion of the rotary-wing drone,
• an extendable cone mounted to the base, the extendable cone comprising one or more truncated conical sections, wherein the one or more truncated conical sections are configured to nest such that a first section with a largest diameter is on the outside and a second section with a smallest diameter is on the inside when nested;
• a centrifugal propeller unit on top of the base, the centrifugal propeller unit comprising a propeller and a motor configured to drive the propeller;
• and
• one or more batteries electrically connected to the motor and disposed between the centrifugal propeller unit and the base;
• a camera configured to obtain images of surrounding environment of the air blowing device and the rotary-wing drone, and
• a processing circuitry configured to analyze the images to obtain one or more parameters of the air blowing device and the rotary-wing drone.