Differential spray boom spraying accurate target-aiming device and target detection method

Abstract

The invention relates to a differential spray boom spraying accurate target-aiming device and a target detection method. The differential spray boom spraying accurate target-aiming device comprises a spray boom spraying module, a sensor module and a target-aiming spraying control module; the spray boom spraying module comprises a spray boom frame, a liquid pesticide box, a diaphragm pump, a nozzle set and electromagnetic switch valves corresponding to nozzles; the sensor module comprises a row-alignment distance measuring sensor, a furrow distance measuring sensor and a machine and tool traveling speed measuring sensor; the row-alignment distance measuring sensor, the furrow distance measuring sensor and the machine and tool traveling speed measuring sensor are connected with the target-aiming spraying control module respectively. According to the differential spray boom spraying accurate target-aiming device and the target detection method, by the adoption of the row-alignment distance measuring sensor and the furrow distance measuring sensor, random noise caused by vibration of a spray boom when a boom sprayer works can be eliminated differentially; the positions of crops can be determined according to collected crop heights, maximum diameters at breast height and distance measurement variances, the method has high accuracy and good robustness, targets can be accurately recognized by the boom sprayer in a field pesticide application process, and pesticides or liquid fertilizer is sprayed to the targets only.

Description

technical field [0001] The invention relates to a differential type boom spray precise target alignment device and a target detection method, belonging to the field of agricultural plant protection machinery. Background technique [0002] The boom sprayer is mainly used for grain or economic crop operations on large-scale farmland, and has good effects on the control of diseases and insect pests and weeding. However, in its actual operation, especially some economic crops, the crops and soil in the farmland are sprayed with indiscriminate pesticides, and it is impossible to apply pesticides according to the presence or absence of crops and the plant area of ​​crops. In this case, some natural enemies of crop pests are also poisoned by pesticides. At the same time, problems such as low effective utilization of pesticides and soil pollution have also arisen. In view of the above problems, precise targeted drug application technology has become the focus of research in the nea...

AI Technical Summary

Problems solved by technology

Its scope of application is mainly to spray pesticides on trees, which is difficult to meet the requirements of field crops.

[0005] The working width of the boom sprayer is generally large, so during the walking process of the machine tool, due to the unevenness of the land, the boom will have a relatively large and irregular vibration, and the sensor installed on the boom will inevitably receive Interference from random vibrations, so the sensor must be able to handle this interference problem, which cannot be solved by the methods used in existing target spray patents

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