Unmanned aerial vehicle cruise monitoring method for Yangtze River cowfishes

The invention discloses an unmanned aerial vehicle cruise monitoring method for Yangtze River cowfishes, which comprises the following steps that a plurality of unmanned aerial vehicles are adopted to cruise side by side to carry out dragnet type patrol, the distance between adjacent unmanned aerial vehicles in the dragnet type patrol process is 0.9-1.1 km, the flight height of the unmanned aerial vehicles is 70-90 m, the unmanned aerial vehicles adopt cameras with zoom lenses to shoot images, and the Yangtze River cowfishes are identified according to the images; in the process of dragnet type patrol and fixed-point patrol, a deep learning method is adopted to detect and identify the cowfishes in the video; after finding out the Yangtze River cowfishes through the dragline patrol, delimiting a fixed-point patrol area according to the positions of the cowfishes exposed out of the water surface, and carrying out patrol tracking on the fixed-point patrol area by adopting two unmanned aerial vehicles; the flight