DESIGN AND TESTING OF A VARIABLE SPRAY SYSTEM BASED ON PTO PROTOCOLS-Reference-Cited by-同舟云学术

DESIGN AND TESTING OF A VARIABLE SPRAY SYSTEM BASED ON PTO PROTOCOLS

Published:2024-08-22 Issue: Volume: Page:285-297
ISSN:2068-2239
Container-title:INMATEH Agricultural Engineering
language:en
Short-container-title:INMATEH

Author:

LIU Lei¹,KONG Fanxia¹,YI Lili¹,LAN Yubin²,HAN Xin¹,ZHAO Jie³,LIU Jie¹,LV Pengcheng¹,ZHANG Minhui¹

Affiliation:

1. College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo/China

2. College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo/China; National Sub-Centre for lnternational Collaboration Research Centre for Agricultural Aviation Intelligent Equipment, Zibo/China

3. UNDOF Procurement Service Station No.4, Shenyang/China

Abstract

The aim of this research is to address the issues of low precision in variable spraying within the existing farmland application system, whereby nozzles cannot be controlled independently and low pesticide utilisation is observed. A variable spraying system based on PTO protocol has been designed. The system comprises an STM32 microcontroller as the control core, including the host computer, multi-channel controller, electronic switch, and electromagnetic spray nozzle. The master control unit receives the spray amount set by the user and calculates the duty cycle of the corresponding nozzle, which is then sent to the multiplex controller in real time through CAN communication. The multiplex controller adjusts the on-off frequency and duty cycle of each electromagnetic nozzle in real time according to the duty cycle of the corresponding nozzle it receives, thus enabling the nozzles to be controlled independently. This study offers theoretical and technical support for the independent control of spray nozzles and the optimisation of pesticide utilisation for variable spray systems based on PTO protocols.

Publisher

INMA Bucharest-Romania

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