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Development and Experiment of Soil Disinfection Injection System

文献类型： 外文期刊

作者： Su Shuai 1 ; Wang Xiu 1 ; Zou Wei 1 ; Zhang Chunfeng 1 ; Li Jinpeng 1 ;

作者机构： 1.Beijing Res Ctr Intelligent Equipment Agr, Beijing, Peoples R China

关键词： insert soil disinfection;pulse width modulation;variable spray;flow model

期刊名称：2015 IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems (CYBER)

ISSN： 2379-7711

年卷期： 2015 年

页码：

收录情况： SCI

摘要： A variable soil disinfection injection system was designed. The system mainly composing of controller, six-way injection units and detection unit etc. The controller generates 6-channel PWM signals, which can be adjusted independently. Detection unit can real-time detect speed of advance and spraying dose. Under the set pressure, by changing the frequency and duty cycle of the PWM signals to control solenoid valve opening and closing, realizing accurate control flow. We had a different duty ratio under different frequency of flow measurement test, spraying flow model is established. The results showed that: when the frequency is 6Hz, duty cycle of the PWM signal and flow has the best linear relationship. Controllers at this frequency can be the most accurate dosage control. We conducted a flow model validation experiments, results show that : the spray flow control error within +/- 5% range.

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