A wind-driven variable-target sprayer for terraced orchards and a target spraying method

Abstract

The invention provides an air-driven variable target sprayer and a target spray method for terraced orchards, belonging to the technical field of agricultural and forestry machinery. The target sprayer of the present invention includes an upper air-supply sprayer and a lower air-supply sprayer installed at different heights. When the terraced orchard air-supply variable target sprayer is working, the industrial computer collects the point cloud data according to the laser radar. The spray delay time, plant height and tree crown volume are obtained, and the control chip adjusts the droplet wind delivery distance, spray height and spray vertical angle accordingly; the industrial computer also compares the information obtained by the GPS integrated navigation device with the point cloud data collected by the laser radar. Fusion processing, the control chip controls the crawler chassis based on the processing results, and plans the travel path. The invention improves the uniformity and accuracy of the spraying of the target sprayer, and improves the spraying efficiency.

Description

technical field [0001] The invention belongs to the technical field of agricultural and forestry machinery, and in particular relates to a wind-driven type variable target sprayer and a target spray method for terraced orchards. Background technique [0002] Forestry and fruit industry is an important part of China's modern agriculture and forestry industry. By the end of 2013, the national orchard planting area reached 12.8 million hectares 2 , the output reached 150 million tons, and the corresponding orchard pest control has become the most important and most time-consuming and labor-intensive operation in orchard management. The use of pesticides plays an important role in the control of pests and diseases of fruit trees and is currently irreplaceable. Orchard pest control is mainly based on the spraying of chemical agents. However, in the traditional pesticide spraying technology for tree pest control, the adjustment accuracy of the spray distance between the nozzle an...

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Problems solved by technology

[0005] Chinese patent (CN110388225A) discloses an infrared random induction spray dust suppression system, through the detection system composed of external sensors, processors, CAN controllers, CAN transceivers and photoelectric isolators, using infrared sensors and pressure sensors to receive signals to judge Spraying time and spraying volume; this system is not effective in detecting the spraying of orchard plants in the field, the adaptability is not strong, and the recognition effect is not accurate enough

Chinese patent (CN110463672A) discloses the automatic spraying system of the orchard based on the single-chip microcomputer, and the wire sensor and the infrared converter are connected with the single-chip microcomputer, and the electromagnetic valve, the regulating mechanism and the swinging mechanism of the spray bar are arranged on the output end of the single-chip microcomputer, and are connected with the nozzle, In order to achieve the purpose of improving the utilization rate of pesticides and reducing labor intensity; however, the patent does not introduce the specific design of the control mechanism and the swing mechanism of the spray boom in detail

Chinese patent (CN104996387A) discloses a hand-push air sprayer, which uses a hand cart to carry out spraying operations, and uses a battery pack to supply power to the diaphragm pump. This small sprayer is used for the prevention and control of plant diseases and insect pests in tea gardens; For orchards, the spray volume and spray effect are not suitable, and the labor cost is high

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