Unmanned aerial vehicle, abbreviated as UAV in English, is an unmanned aerial vehicle operated by radio remote control equipment and its own program control device. Unmanned aerial vehicle is actually the floorboard of unmanned aerial vehicle. Technically, it can be divided into three categories: unmanned helicopter, unmanned fixed-wing aircraft, unmanned multi-rotor aircraft, unmanned airship and unmanned parafoil aircraft. Compared with manned aircraft, it has the advantages of small size, low cost, convenient use, low requirements for operational environment and strong battlefield survivability.