DESIGN AND TESTING OF A VARIABLE SPRAY SYSTEM BASED ON PTO

被引：0
|
作者：
Liu, Lei [1 ]
Kong, Fanxia [1 ]
Yi, Lili [1 ]
Lan, Yubin [1 ,2 ]
Han, Xin [1 ]
Zhao, Jie [3 ]
Liu, Jie [1 ]
Lv, Pengcheng [1 ]
Zhang, Minhui [1 ]
机构：
[1] Shandong Univ Technol, Coll Agr Engn & Food Sci, Zibo, Peoples R China
[2] Natl Sub Ctr lnternat Collaborat Res Ctr Agr Aviat, Zibo, Peoples R China
[3] UNDOF Procurement Serv Stn 4, Shenyang, Peoples R China
来源：
INMATEH-AGRICULTURAL ENGINEERING | 2024年 / 73卷 / 02期
关键词：
PTO Protocol; PWM; Electromagnetic Spray nozzle; Variable spraying;
D O I：
10.35633/inmateh-73-24
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
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.
引用
收藏
页码：285 / 298
页数：239
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