基于物联网的水肥一体化智能灌溉系统设计及效益分析

Water and fertilization integrated intelligent irrigation system design and benefit analysis based on the Internet of Things

基于灌溉现代化发展需求和节水省工的目的,以物联网技术为支撑,对水肥一体化智能灌溉系统进行设计及效益分析。该系统主要包括智慧平台(信息中心),田间灌溉控制系统,智能施肥系统,农田气象环境监测系统,远程土壤墒情测报系统,远程管道压力、流量监测系统,远程作物长势视频监测系统,能效监测系统等8个组成部分。效益敏感性分析结果表明,物联网水肥一体化智能灌溉系统的年效益在其经济内部收益率指标中最为敏感,故该系统与普通滴灌工程相比投资虽较大,但年效益的提高使其在应用年限中获得较高的经济内部收益率,从而极大提高灌溉系统的收益创造能力。应用效果显示,物联网水肥一体化智能灌溉系统省工节水效果显著,随着科技的不断进步与水利信息化的发展趋势,有着良好的应用前景。

This study focused on the design and benefit analysis of water and fertilization integrated intel- ligent irrigation system based on the Internet of Things to save water and labor. This system includes eight components： intelligence platform （information center）, field irrigation control system, intelligent fertili- zation system, farmland meteorological environment monitoring systems, remote telemetry system of soil moisture, the remote pipeline pressure and flow monitoring system, remote video monitoring system of crop condition, and energy efficiency monitoring system. In the process of application, according to the results of sensitivity analysis, we found that the annual benefit is the most sensitive factor in its economic internal rate of return. Comparing with common drip irrigation, the investment of the system is large, but its annual benefit improvement can make higher economic internal rate of return. Therefore, greatly en- hance the benefits of irrigation system creation ability. Application effect showed that the water and fertili- zation intelligent irrigation system based on the Internet of Things has remarkable water - saving effect. In addition, the system has a good application prospect along with the advance of science and technology and the development trend of water resources informatization.