Multi-mode mooring unmanned aerial vehicle system and flight method

The invention relates to a multi-mode mooring unmanned aerial vehicle system and a flight method, the multi-mode mooring unmanned aerial vehicle system comprises an unmanned aerial vehicle, a ground station, a mooring chassis, a battery module and a mooring cable, the unmanned aerial vehicle carries a visual pod and/or a detachable illumination module, the ground station is used for communicating with the unmanned aerial vehicle, and the mooring chassis comprises a main body and a base; a nest for parking an unmanned aerial vehicle is arranged on the main body, and a capstan for winding and unwinding a mooring cable is arranged in the main body; a battery bin is arranged beside the main body, the battery module comprises an individual battery and a mooring battery and is arranged in the battery bin for charging, the individual battery and the mooring battery are the same in shape and power-on interface, and a high-voltage-to-low-voltage module is arranged in the mooring battery. The flight method comprises th