Automatic orchard variation spraying machine based on laser scanning technique

Abstract

The invention relates to an automatic orchard variation spraying machine based on a laser scanning technique. The spraying machine comprises a traction chassis, a laser scanning detection device, a variation spraying device, an adjustable spraying rod device and a power supply device, wherein the laser scanning detection device comprises a laser scanner; the variation spraying device comprises anagent tank, a diaphragm pump, a voltage adjusting shunt, a first-stage shunt, a second-stage shunt, an electromagnetic valve group and a plurality of five-finger atomizer; and the power supply devicecomprises a power generator and a power transformer which are arranged on the traction chassis. By adopting the spraying machine, information of crowns of fruit trees on both sides of a tree row can be automatically acquired, the flow of each nozzle and the air amount of a single fan can be automatically and independently controlled according to an agent application algorithm, and spraying as required and air amount supply are achieved, so that the pesticide utilization rate and deposition uniformity can be improved, and environment pollution and body damage to operators, which are caused by pesticide drifting in the pesticide application process, can be reduced.

Description

technical field [0001] The invention belongs to the field of agricultural plant protection machinery and relates to a sprayer, in particular to an automatic variable-variable sprayer for orchards based on laser scanning technology. Background technique [0002] Fruit tree spraying is an effective plant protection method commonly used in nurseries and fruit trees. In my country, the automatic plant protection machinery and pesticide application technology currently used for fruit tree spraying are relatively backward, and the utilization rate of pesticides is extremely low. Spraying is very easy to form pesticide drift and loss, resulting in serious pesticide waste and environmental pollution, and also causes pesticide residues in agricultural products to exceed the standard. The target variable pesticide application technology can improve the effective utilization rate of pesticides, improve the uniformity of pesticide liquid deposition in the canopy, and reduce the environme...

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Problems solved by technology

[0003] The existing automatic target variable sprayer in my country mainly collects tree crown information according to the corresponding sensors, and realizes it by adjusting the flow rate of the nozzle and the air outlet of the fan. 201410785519.5), using laser sensors to collect tree crown information, but it can only adjust the spray flow rate; Chinese invention patent application "A self-adaptive orchard sprayer" (application number 201410321884.0), by adjusting the rotation angle of the bellows and the frequency of the solenoid valve to achieve Target spraying, but it cannot adjust the air volume in real time according to the target crown parameters. The sprayer uses a single axial fan as the air source, which has poor adaptability to fruit trees. During the spraying process, it is easy to cause pesticides caused by excessive or too small air volume. Problems such as drift or uneven deposition, less automation

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