Unmanned aerial vehicle based on spectrum detection and spraying control method

Abstract

An embodiment of the invention provides an unmanned aerial vehicle based on spectrum detection and a spraying control method. The method includes the following steps that crop canopy reflected light information is acquired by the aid of a forward reflection spectrum sensor and a backward reflection spectrum sensor, and incident light information is acquired by the aid of an incident spectrum sensor; vegetation index information is acquired through analysis of the crop canopy reflected light information and the incident light information, and spraying quantity information is determined according to the vegetation index information; flight state information is acquired by the aid of a master controller, and spraying lead time information is calculated according to the flight state information and the crop canopy reflected light information; and a spraying system performs chemical spraying according to the spraying quantity information and the spraying lead time information. The crop growth vigor in the sprayed area is detected in real time by the aid of the incident spectrum sensor, the forward reflection spectrum sensor and the backward reflection spectrum sensor, the spraying quantity is adjusted continuously according to the crop growth vigor, and air spraying is realized by the aid of the unmanned aerial vehicle more accurately and effectively.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle based on spectral detection and a spraying control method. Background technique [0002] Aerial pesticide application is an important means of modern agricultural plant protection operations. In the field of aerial pesticide application, precise pesticide application by drone is the future technology development trend. At present, the plant protection UAV is equipped with an automatic operation control system. After the ground command software sets the operation area and the spraying amount per mu, the aircraft can operate according to the set spraying path. The control system is based on the position information of the crop. During the process, the nozzle is turned on or off by program control. [0003] However, in the prior art, in the spraying process, the pesticides are usually sprayed according to a uniform spraying amount, but in...

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Problems solved by technology

[0003] However, in the prior art, in the spraying process, the pesticides are usually sprayed according to a uniform spraying amount, but in the actual process, there are crops with different growth styles, and the crops with different growth styles have different requirements for the dosage. It is easy to cause the waste of medicine by spraying the amount of medicine

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