Air-Assisted Spraying Device with Rotating Tubes for Canopy Adaptation
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Solution Overview
Problem
Existing spraying machines for orchards are unable to perform target-oriented pesticide application based on the contour shapes of fruit trees, leading to inefficient pesticide deposition and potential environmental pollution due to pesticide drift.
Innovation Solution
An intelligent air-assisted spraying device equipped with a traction mechanism, a spraying system with rotatable spraying tubes, a collecting system for canopy contour and density data, and a processing-controlling system for real-time adjustment of spraying parameters to match the fruit tree canopy shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional spraying machines are used with fixed spraying parameters, then the device structure is simple and easy to operate, but the spraying efficiency is low and pesticide drift occurs due to inability to adapt to different tree shapes and canopy densities
Solution Approach 1:
The patent implements dynamic adjustment of spraying parameters by enabling the spraying tubes to rotate and adjust their orientation angles in real-time based on detected canopy contours and density, transforming the fixed spraying system into a dynamic adaptive system that optimizes pesticide delivery for each tree's unique structure
Solution Approach 2:
The system changes spraying parameters (orientation angles, air flow direction) based on detected tree characteristics, allowing the same device to adapt to different tree shapes, sizes, and canopy densities without requiring multiple specialized machines
2Reliability
If air flow is increased to enhance droplet penetration into canopy, then droplet adhesion and penetration improve, but pesticide drift to non-target areas increases causing environmental pollution
Solution Approach 1:
The system applies different air flow strengths and orientations to different local areas of the canopy based on detected density variations, using stronger flow for dense inner canopy regions and weaker flow for outer areas, thereby achieving effective penetration without causing widespread drift
Solution Approach 2:
The collecting system detects real-time canopy contour and density information, which feeds back to the processing-controlling system to dynamically adjust air flow parameters, creating a closed-loop control that prevents excessive drift while maintaining adequate penetration
3Measurement precision
If spraying parameters are adjusted for each individual tree shape and canopy density, then target-oriented spraying accuracy improves, but the control system complexity and data processing requirements increase
Solution Approach 1:
The system performs self-adjustment by automatically detecting tree characteristics through the collecting system and autonomously computing and implementing the appropriate spraying parameters without requiring external manual intervention or complex operator decision-making
Solution Approach 2:
The patent replaces manual mechanical adjustment with an automated electronic control system that uses sensors to detect tree parameters and automatically computes and executes the optimal spraying configuration, reducing the need for complex mechanical adjustment mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device enables precise, target-oriented spraying that maximizes pesticide deposition within the fruit tree canopy while minimizing drift to non-target areas, enhancing the quality and efficiency of pesticide application.
Implementation Method 1
Air-assisted spraying utilizes high-speed air currents to further atomize the droplets emitted from the nozzle into fine, even particles
Implementation Method 2
Air-assisted spraying utilizes high-speed air currents to further atomize the droplets emitted from the nozzle into fine, even particles
Implementation Method 3
The powerful airflow agitates the leaves and carries the droplets deep into the inner canopy of the target, enhancing their penetration
Data Source
AI summary
An intelligent air-assisted spraying device for orchards includes a traction mechanism, a spaying system, a collecting system, and a processing-controlling system. The traction mechanism is provided with a spray tank. The spaying system includes a main body connected to the spray tank and multiple spraying tubes, first ends of the spraying tube are communicated with the main body, and second ends of the spraying tubes are capable of rotating. The collecting system is configured to collect a contour and a volume of the canopy, and branch and leaf density of a fruit tree. The processing-controlling system is configured to obtain multiple spraying areas, calculate an air outlet angle of each spraying tube, and control a rotation of the second end of each spraying tube according to the air outlet angle. The device can adjust the spraying direction of each spraying tube, and the quality of pesticide application can be improved.