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Model and design of real-time control system for aerial variable spray
Yangyang Liu1, Yu Ru1, Liti Duan1
1College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, China.
Plos One
|July 24, 2020
Summary
This study introduces a control system for unmanned aerial vehicle (UAV) based aerial variable spray, ensuring consistent pesticide application per unit area. Field tests confirm its high accuracy and stability for precision agriculture.
Area of Science:
- Agricultural Engineering
- Precision Agriculture
- Robotics
Background:
- Aerial variable spray application faces challenges in maintaining consistent pesticide dosage due to fluctuating flight parameters.
- Inconsistent application leads to uneven coverage and reduced efficacy of pesticides.
Purpose of the Study:
- To develop and validate a control system for unmanned aerial vehicles (UAVs) to achieve consistent aerial variable spray application.
- To enhance the accuracy and efficiency of pesticide application in agriculture.
Main Methods:
- Proposed a set of control models for aerial variable spray using UAVs.
- Developed a control system that adjusts solenoid valve opening based on real-time flight parameters.
- Implemented manual control for variable dosage adjustment based on application needs.
Main Results:
- The system demonstrated high accuracy in variable control, with a deviation range of 0.11% to 9.79%.
- The system exhibited strong stability, operating continuously for over 6 hours at 30°C.
- Collected pesticide application data provides a basis for future precision technology research.
Conclusions:
- The developed UAV-based aerial variable spray system effectively ensures consistent pesticide application per unit area.
- The system meets the accuracy and stability demands for agricultural aviation pesticide application.
- The proposed models offer a theoretical foundation for advancing aerial variable spray technology.
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