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基于流量調節(jié)閥和神經網絡的植保機械在線混藥裝置
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國家自然科學基金資助項目（51275215）,、江蘇省農業(yè)裝備智能化高技術研究重點實驗室資助項目（BM2009200）,、江蘇省自然科學基金資助項目（BK2011048）,、江蘇省科技支撐計劃資助項目（BE2013401）和江蘇高校優(yōu)勢學科建設工程資助項目（蘇政辦發(fā)\[2014\]37號）


On-line Mixing Pesticide Device Based on Flow Control Valve and Neural Network
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    摘要:

    農藥的小流量,、高精度實時動態(tài)測控是在線混藥裝置急需解決的一個關鍵問題。流過調節(jié)閥的流量與閥前后壓差,、流體密度,、閥開度有關，通過建立流量與這3個變量間的關系表達式,，即可利用調節(jié)閥對藥液流量進行實時檢測和控制,。設計了利用流量計和調節(jié)閥分別對水和農藥原液進行計量的在線混藥裝置，在提出調節(jié)閥相應標定方法的基礎上,，建立了調節(jié)閥的流量關系表達式,，并在室內進行了測試。結果表明,，農藥流量在24~240mL/min范圍內時,，混藥裝置的藥液流量相對偏差均小于4%。

    Abstract:

    Small flow high precision real-time dynamic detection and control of pesticide is a key problem which need to solve urgently for on-line mixing device. Flow rate passing the flow regulating valve is related to differential pressure between the upstream and downstream of the valve, fluid density and the valve opening. By developing the relation expression between flow rate and these three variables, real-time detection and control for pesticide flow rate can be implemented using the control valve. In order to meter and control the flow rate of water and pesticide by using flow meter and control valve respectively, the online mixing pesticide device is designed. The calibration method of control valve is proposed and the flow rate relation expressions are developed. The experiments are conducted for the designed mixing device. The experimental results show that the relative error of the pesticide flow rate is less than 4% as the pesticide flow rate is between 24mL/min and 240mL/min.

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李晉陽,賈衛(wèi)東,魏新華.基于流量調節(jié)閥和神經網絡的植保機械在線混藥裝置[J].農業(yè)機械學報,2014,45(11):98-103. Li Jinyang, Jia Weidong, Wei Xinhua. On-line Mixing Pesticide Device Based on Flow Control Valve and Neural Network[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(11):98-103.

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  • 收稿日期:2014-06-13
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  • 在線發(fā)布日期: 2014-11-10
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