Unmanned aircraft, known as "drones" or "UAV " , are unmanned aircraft operated with Radio control equipment and self-contained programmed controls, or are operated completely or intermittently autonomously by on-board computers. Drones are often better suited for missions that are too "dull, dirty or dangerous" than manned aircraft. According to the field of application, UAV can be divided into military and civilian. On the military side, uavs are classified as reconnaissance aircraft and target aircraft. Civil aspect, the unmanned aerial vehicle + profession application, is the unmanned aerial vehicle real just needs; It is currently used in aerial photography, agriculture, plant protection, micro-selfie, express transportation, disaster rescue, wildlife observation, monitoring of infectious diseases, surveying and mapping, news reporting, power inspection, disaster relief, Film and television shooting, making romance, etc. , has Greatly expanded the use of the UAV itself, developed countries are also active in the industry to expand the application and development of UAV technology. In September 2018, the 62nd meeting of the Harmonized System Committee (HSC) of the World Customs Organization decided to classify uavs as "flying cameras" .