Variable spraying control system and method based on fruit tree canopy leaf area indexes

Abstract

The invention relates to the technical field of agricultural intelligent machinery, in particular to a variable spraying control system based on fruit tree canopy leaf area indexes and a fruit tree canopy variable spraying method of the system. According to the system, an information acquisition terminal acquires information of echo energy, the target distance and the running speed of a spraying machine in real time, and a canopy leaf area index spraying basis value L is obtained through calculation of a central processing unit module; real-time variable spraying is realized according to the change of the L value. The detection system and method have the function of detecting the fruit tree canopy leaf area indexes online in real time, pesticide spraying is conducted on different positionsof a fruit tree canopy with pertinence, and the requirement for precise pesticide application of an orchard can be better met; meanwhile, the system has the advantages of being high in adaptability,fast in response, high in detection precision and the like.

Description

technical field [0001] The invention relates to the technical field of agricultural intelligent machinery, more specifically, to a variable spray control system based on the leaf area index of the canopy of fruit trees and a variable spray method for the canopy of fruit trees. Background technique [0002] The control of orchard pests and diseases mainly depends on the spraying of chemical pesticides, but the traditional method of continuous pesticide application will have a large amount of pesticide residues, which does not meet the requirements of environmental protection and sustainable development in today's society. The main problem of orchard spraying at the technical level is that it is difficult to calculate the demand distribution of the target dose online and implement the control of the target variable spraying. In order to solve the above problems and meet the requirements of precise spraying in orchards, it is necessary to study the orchard target feature recogn...

AI Technical Summary

Problems solved by technology

At present, the detection technologies of fruit tree canopy targets mainly include optical sensor target detection technology, machine vision target detection technology, laser radar target detection technology, ultrasonic sensor target detection technology, and the detection technology of the position and volume information of fruit tree canopy has been very Mature and widely used, but the detection technology of fruit tree canopy density information and the intelligent control of spraying amount according to the information of fruit tree canopy density are still in the stage of technical research, and need to be further studied in the direction of orchard application to achieve technological breakthroughs

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