| 城市绿地节水灌溉双层最优控制模型研究 |
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| 引用本文： | 赵燕东,刘圣波,陶 鑫,赖小龙,蔡 祥.城市绿地节水灌溉双层最优控制模型研究[J].农业机械学报,2014,45(4):184-188. |
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| 作者姓名： | 赵燕东 刘圣波 陶 鑫 赖小龙 蔡 祥 |
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| 作者单位： | 北京林业大学;北京林业大学;中机美诺科技股份有限公司;北京林业大学;中国农业大学 |
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| 基金项目： | 国家自然科学基金资助项目（31371537）和农业科技成果转化资金资助项目（2012GB23600634） |
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| 摘 要： | 为了研究城市绿地灌溉的有效控制策略,建立了一种基于最优控制理论的灌溉控制模型,与传统的BangBang控制器的灌溉控制模型做比较时,采用双层土壤水分传感器,同时获取草坪草20 cm和40 cm两层深度的土壤水分信息。经过2011年夏季2个月的对比实验,表明在同样天气、土壤及草坪草管理条件下,保证草坪草长势满足景观要求的最优控制策略与Bang-Bang控制策略相比,具有显著的节水效果,节约用水约25%。
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| 关 键 词： | 节水灌溉 城市绿地 最优控制 Bang-Bang控制 |
| 收稿时间： | 2013/4/17 0:00:00 |
Optimal Model of Dual-layer Water-saving Irrigation on Urban Green Land |
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| Zhao Yandong,Liu Shengbo,Tao Xin,Lai Xiaolong and Cai Xiang.Optimal Model of Dual-layer Water-saving Irrigation on Urban Green Land[J].Transactions of the Chinese Society of Agricultural Machinery,2014,45(4):184-188. |
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| Authors: | Zhao Yandong Liu Shengbo Tao Xin Lai Xiaolong and Cai Xiang |
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| Institution: | Beijing Forestry University;Beijing Forestry University;MENOBLE Co.,Ltd;Beijing Forestry University;China Agricultural University |
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| Abstract: | Precise irrigation of agro forestry is imminent with the shortage of water resources in the world and the development of modern agro forestry and information science. One of the effective means to realize precise irrigation is to improve the control method and control accuracy. In order to study the effective control strategy for the irrigation of urban green land, an irrigation control model with optimal control theory was built. To testify the model, a dual-layer sensor was used to obtain the soil moisture in depth of two layers (20cm and 40cm) simultaneously. The experiment was conducted in an urban green land of Beijing. With the same climatic environment, the traditional irrigation control model with Bang-Bang control method and the optimal irrigation control model were compared. After comparative study in two months of 2011, the experiment result indicated that, comparing with Bang-Bang control, the optimal control saved water remarkably (approx. 25%) in the same weather ,soil and grass management conditions and ensured the lawn grass meeting the landscape requirements. |
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| Keywords: | Water-saving irrigation Urban green land Optimal control Bang-Bang control |
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