DocumentCode :
2860849
Title :
Design of flow control system on sprayer
Author :
Aiwu, Chen ; Ailin, Liu ; Zhizhuang, Liu ; Wenzhao, Zhang ; Xinling, Tang
Author_Institution :
Dept. of Electron. Eng., Hunan Univ. of Sci. & Eng., Yongzhou, China
Volume :
12
fYear :
2010
fDate :
22-24 Oct. 2010
Abstract :
This paper presents an on-line flow control system for variable rate spray based on LabVIEW. To solve the control problem of micro-flow or low flow on pesticide in the course of variable rate spraying, a variable rate control system was developed with a NI DAQ, a flowmeter, an electronic control injector of vehicle, etc. The characteristics of the flow control system, such as development platform, fuzzy control, PID algorithm, PWM, temperature property, response speed and so on verify that it is much better than that of traditional architecture exploitured by single chip, and it is good linearity between flow of the injector and PWM dutyfactor, the flow rate will automatically change with the variation of dutyfactor at the fix frequency. Experimental results show that this flow controls system has an advantage over other control system.
Keywords :
agrochemicals; chemical products; control system synthesis; flow control; flowmeters; spraying; virtual instrumentation; LabVIEW; NI DAQ; dutyfactor; electronic control injector; flowmeter; microflow; on-line flow control system; pesticide; variable rate control system; variable rate spraying; Flow control; Fuzzy control; LabVIEW; Linearity; PWM;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
Electronic_ISBN :
978-1-4244-7237-6
Type :
conf
DOI :
10.1109/ICCASM.2010.5622410
Filename :
5622410
Link To Document :
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