Aircraft pesticide application effect detecting method based on laser-induced fluorescence technology

Abstract

The invention discloses an aircraft pesticide application effect detecting method based on a laser-induced fluorescence technology. The aircraft pesticide application effect detecting method comprisesthe following steps: (1) dissolving a fluorescent dye as a tracer in a to-be-sprayed pesticide, measuring a mixed solution, and drawing a deposition quantity and photometric quantity curve; (2) setting a spraying operation route and a remote sensing aerial photography route; (3) adding a to-be-sprayed mixed pesticide into a spraying aircraft; (4) carrying out spraying operation by the spraying aircraft according to the spraying operation route; (5) acquiring fluorescence data in a pesticide spraying area by taking on a remote sensing aircraft with a multispectral lidar according to the remotesensing aerial photography route; (6) drawing the deposition quantity and photometric quantity curve, and establishing a three-dimensional light distribution spectrogram in combination with the fluorescence data acquired by remote sensing aerial photography; and (7) obtaining a deposition effect of pesticide application. The detecting method can be used for detecting a fog drop deposition condition in the pesticide spraying area within a large range and has the advantages such as high precision, good real-time property as well as convenience and high speed in detection.

Description

technical field [0001] The invention relates to agricultural aviation detection technology, in particular to a method for detecting the effect of spraying pesticides on aircraft based on laser-induced fluorescence technology. Background technique [0002] With the development of science and technology, the application of agricultural aircraft has gradually matured, and it can complete tasks that are impossible or difficult to perform manually, such as agricultural spraying operations. Compared with manual spraying, agricultural aircraft spraying has the following advantages: high efficiency and good spraying effect And the cost is low; therefore, in the field of agriculture and forestry, aircraft spraying is gradually developed and popularized, which can greatly improve the operational efficiency of agricultural and forestry pest control. [0003] In the spraying operation, it is necessary to detect the deposited mist droplets on the crops to judge the spraying effect of the...

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Problems solved by technology

[0004] The detection area of ​​the above two methods is limited, only limited samples can be obtained, and the chance is relatively large, so it is difficult to characterize the overall distribution of the droplet deposition in the operation area; moreover, the detection results are not instant and cannot be obtained in the field in real time. It is time-consuming and labor-intensive to transfer the sample to the laboratory, and then use a scanner or spectrometer for subsequent analysis and processing to obtain the results.

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