The present invention relates to an atmospheric environment-improving drone having life-saving and advertising functions, and more specifically, to a drone configured to move while hovering in the air, the drone comprising: a drone body; and a hovering transport unit for hovering the drone body in the air and moving same. The drone body is provided with a water spray means for purifying the air by adsorbing dust and fine dust in the air. The water spray means includes: support shafts, each of which has one end fixed on the outer surface of the drone body; spray liquid supply pipes fixed to lower portions of the support shafts; and spray liquid spraying nozzles formed at regular intervals on the purified liquid supply pipes. Since the drone configured to move while hovering in the air is used to spray water from the air, the drone can spray a wider area than ground-based water spray devices, thus having the effect of improving the purification efficiency for contaminants or fine dust in the air. Moreover, the drone has an advertising function, and thus can also achieve an advertising effect.

The invention relates to a spray unit (10) with an axle (20), an atomising disc (30), a spray direction modifying assembly (40), and a liquid applicator (50). The atomising disc is configured to spin about the axle centred on the centre of the disc. The liquid applicator is configured to apply liquid to a surface of the atomising disc. The spray direction modifying assembly is in proximity to the atomising disc. The spray direction modifying assembly comprises at least one air channel (41). The at least one air channel is configured to provide air in proximity to the atomising disc to modify the subsequent trajectory of the liquid droplets that leave the outer edge of the atomising disc.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling spraying of chemicals by an unmanned aerial vehicle (UAV). An unmanned aerial vehicle system includes one or more processors configured to perform operations of autonomously performing a flight path by the UAV and dispersing a chemical by the UAV along portions of the flight path. The UAV may include a chemical spray system having one or more spray booms with multiple nozzles for dispersing a chemical. The chemical spray system may include one or more tanks attached to the body of the UAV and a pump fluidly connected to the tanks to disperse chemical via the spray booms.

A survey system for accurately surveying an area includes a coordinate acquisition section that acquires a set of three-dimensional coordinates of a survey point or a base station used for determining sets of coordinates of the area, as a set of measurement coordinates, a comparative coordinate acquisition section that acquires at least a height-direction coordinate value of a set of comparative coordinates indicating a position within a predetermined range from the acquired set of measurement coordinates; and a determining section that calculates a difference between a height-direction coordinate value of the set of measurement coordinates and the height-direction coordinate value of the set of comparative coordinates and determines that at least any one of the set of measurement coordinates and the set of comparative coordinates are incorrect when the difference is larger than a predetermined value.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling spraying of chemicals by an unmanned aerial vehicle (UAV). An unmanned aerial vehicle system includes one or more processors configured to perform operations of autonomously performing a flight path by the UAV and dispersing a chemical by the UAV along portions of the flight path. The UAV may include a chemical spray system having one or more spray booms with multiple nozzles for dispersing a chemical. The chemical spray system may include one or more tanks attached to the body of the UAV and a pump fluidly connected to the tanks to disperse chemical via the spray booms.

Provided is a discharge apparatus for an air vehicle, capable of reducing a loss of discharge pressure from an aerosol container. The discharge apparatus for an air vehicle discharges contents from an aerosol container 10 mounted on an airframe 101 through a nozzle 15. The aerosol container 10 is mounted on an exterior of the airframe 101, and one end of the nozzle 15 is supported by a discharge end part of the aerosol container 10 via a pipe joint 17 that allows the nozzle 15 to rotate so as to be rotatable around at least one rotation axis M.

The present invention relates to a multipurpose and long endurance Hybrid Unmanned Aerial Vehicle (HUAV) with the combined functions of a Vertical Take-off and Landing (VTOL) and a fixed wing operation. The HUAV may take-off and land vertically on both land and water, and perform a mid-air transition from a VTOL mode to a fixed wing mode. The HUAV includes an airframe, a fixed wing unit having at least one forward thrust motor, one or more VTOL units mounted on a tail boom, and a fuselage of the airframe. Each of the one or more VTOL units includes at least one VTOL motor, and a control unit configured to control on-board transition of the HUAV between the VTOL mode and the fixed wing mode by controlling at least one forward thrust motor and at least one VTOL motor.

A detector system for detecting at least one of dust, dirt, snow, and ice, comprising: one or more sensors configured to detect the at least one of dust, dirt, snow, and ice; and one or more processors configured to perform instructions, the instructions configured to cause the one or more processors to receive an indication from the one or more sensors relating to a detection of at least one of dust, dirt, snow, and ice, wherein the system comprises a light source, a dust panel, and a light detector.

Provided is a method and device for adjusting a broadcast dosage, an unmanned aerial vehicle and a storage medium. Applied to the unmanned aerial vehicle for broadcast through a material taking device driven by an electric motor, the method particularly includes: receiving a calibration instruction including a calibration rotation speed and calibration duration, controlling the electric motor to run at the calibration rotation speed within the calibration duration to discharge a material to be broadcast; acquiring a flight parameter and an actual discharge amount of the material to be broadcast discharged by the material taking device within the calibration duration; determining an adjustment coefficient between a flight speed and a rotation speed of the electric motor according to the flight parameter and the actual discharge amount; and adjusting the rotation speed of the electric motor to adjust the broadcast dosage according to the adjustment coefficient.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling spraying of chemicals by an unmanned aerial vehicle (UAV). An unmanned aerial vehicle system includes one or more processors configured to perform operations of autonomously performing a flight path by the UAV and dispersing a chemical by the UAV along portions of the flight path. The UAV may include a chemical spray system having one or more spray booms with multiple nozzles for dispersing a chemical. The chemical spray system may include one or more tanks attached to the body of the UAV and a pump fluidly connected to the tanks to disperse chemical via the spray booms.