Control method for agriculture and forestry spraying low-altitude flight of large freight unmanned aerial vehicle

Abstract

The invention relates to a control method for agriculture and forestry spraying low-altitude flight of a large freight unmanned aerial vehicle, the agriculture and forestry spraying is achieved by controlling the unmanned aerial vehicle and a liquid storage tank, the unmanned aerial vehicle comprises an unmanned aerial vehicle shell, rotor wing rods are fixedly connected to the periphery of the unmanned aerial vehicle shell, and spraying pipes are rotatably connected to the bottom ends of the rotor wing rods; the top end of the spraying pipe is connected with a rotor wing rod in a penetrating mode, spraying holes are formed in the bottom end of the spraying pipe, balls are rotationally connected into the spraying holes, the spraying pipe is of a hollow structure, and the top end of the spraying pipe is connected with the rotor wing rod in a penetrating mode. The method belongs to the technical field of the unmanned aerial vehicles, the unmanned aerial vehicle is connected with the spraying pipe, the centrifugal force generated by the high-speed rotation of the spraying pipe can throw out the sprayed liquid medicine, so that the spraying range of the spraying liquid is increased, the spraying area of the unmanned aerial vehicle is enhanced, meanwhile, the centrifugal force generated by rotating the spraying pipe can effectively reduce the probability that the spraying liquid flows down in strands, and the spraying uniformity of the spraying liquid is effectively enhanced.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a control method for low-altitude flight of a large cargo unmanned aerial vehicle for agricultural and forestry spraying. Background technique [0002] UAVs are widely used in agriculture and forestry. UAVs are used to spray pesticides on agriculture and forestry to achieve the ability to prevent and control pests. extensive development. [0003] The prior art, wherein the publication number is CN213756384U, discloses a drone spraying control system, comprising: a wirelessly connected drone spraying device, a spraying volume adjustment device, and a server; the spraying volume adjustment device includes: an air pressure sensor, a signal The adjustment circuit and the first wireless transceiver, wherein the signal adjustment circuit includes a sequentially connected signal acquisition circuit, a signal amplification circuit, a shaping filter circuit, and a voltag...

AI Technical Summary

Problems solved by technology

By adopting the utility model, it is possible to control the amount of pesticides sprayed by the drone according to the flying speed of the drone, so that the pesticide sprayed by the drone to the crops is even. Man-machine technical requirements are high, and it often happens that the flying height of the controlled UAV is lower than the spraying flight height during the flight, which will cause the UAV nozzle to come into contact with the agricultural and forestry plants, which will lead to the blockage of the liquid outlet tank , which is not conducive to the spraying operation of agriculture and forestry by drones. Therefore, a control method for low-altitude flight of large-scale cargo drones for agriculture and forestry spraying is proposed.

Images