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溫室環(huán)境控制與溫室模擬模型研究現(xiàn)狀分
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on Environmental Control and Simulation Models for Greenhouses
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    摘要:

    綜述了溫室環(huán)境控制系統(tǒng)、控制策略及環(huán)境模擬等研究領(lǐng)域的發(fā)展?fàn)顩r,。目前溫室環(huán)境主要采用多處理器的分布式控制系統(tǒng),控制器以結(jié)構(gòu)通用,、價(jià)格便宜的單片機(jī)為主,,也可應(yīng)用工業(yè)控制器,但工業(yè)控制器的價(jià)格較高,。環(huán)境控制的研究重點(diǎn)是控制系統(tǒng)的智能化和信號(hào)傳輸?shù)臒o線化,,無線傳輸適合溫室特點(diǎn),為現(xiàn)場布線及后期維護(hù)帶來方便,。通過模擬模型可以了解結(jié)構(gòu)特征,、氣象條件及作物生長等對(duì)溫室環(huán)境的影響。綜合考慮環(huán)境因子,、作物生長及經(jīng)濟(jì)性的三級(jí)模型尚難以達(dá)到,,目前主要還是采用分段式控制和人工設(shè)定相結(jié)合的方法。不必過分強(qiáng)調(diào)后級(jí)控制的精度,,應(yīng)結(jié)合作物生長模型進(jìn)行環(huán)境優(yōu)化調(diào)控并注意溫室生產(chǎn)的經(jīng)濟(jì)性,,加強(qiáng)控制理論與溫室生產(chǎn)過程的結(jié)合。

    Abstract:

    From the view of practice and application, the situation of research and development for environmental control and simulation models of greenhouse were described. The multiple processor distributed control systems are widely used for greenhouse environment, and the single chip processors with the universal structure and low price are mainly used as the controller of the systems. The IPC (industrial personal computer) can also be used as the controller but its price is relatively expensive. The intellectualization of the control systems and the signal wireless transmission are significant trend for the environmental control of the greenhouse, and the wireless transmission is more suitable for greenhouse characteristics. It should be considered to integrate environmental control with crop growth models and greenhouse production economy (benefits), but it’s difficult to do at present. The simulation models can help to know better about the effect factors on greenhouse environment. It’s not necessary to over emphasize the precision of rare level control system.

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丁為民,汪小旵,李毅念,王健.溫室環(huán)境控制與溫室模擬模型研究現(xiàn)狀分[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(5):162-168. on Environmental Control and Simulation Models for Greenhouses[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(5):162-168.

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