基于需水模型的精细灌溉控制系统软件设计  

Software design of precision irrigation control system based on water requirement model

作　　者：薛岩[1] 张建锋[1] 李鹏宇[1] 黄铝文[1] 

机构地区：[1]西北农林科技大学信息工程学院,陕西杨凌712100

出　　处：《计算机工程与设计》2014年第9期3332-3336,共5页Computer Engineering and Design

基　　金：十二五国家科技支撑计划基金项目(2011BAD29B08)

摘　　要：针对农业生产过程中的水资源浪费问题,为提高用水效率,设计实现温室精细灌溉控制系统。以温室黄瓜为研究对象,分析其在不同生长阶段、不同气象状况下的需水模型,确立灌溉控制策略,现场控制器采集气象信息(包括空气温湿度,土壤温湿度,管网水流量等)并通过RS-485网络发送控制命令,以空气湿度、空气温度等作为输入量,作物的需灌溉水量作为输出量,实现对温室作物的实时精准灌溉。实验结果表明,该系统控制精细度高、通信稳定可靠,适于在中小型温室灌区推广。Aiming at the water waste problem in the agricultural production process, to improve the efficiency of water use, a precision greenhouse irrigation control system was designed and developed. Greenhouse cucumbers were taken as study object, the water demand model were analyzed at different growth stages under different meteorological conditions and the irrigation control strategy was established. Field controller collected meteorological information including air temperature and humidity, soil temperature and humidity, water pipe network flow, etc. and sent control commands through the RS-485 network. Air humidity, air temperature, etc. were taken as input, the irrigation water requirement of the crop was taken as output, the real-time precision irrigation to greenhouse crops was realized. Experimental results show that the control system is highly precise, stable and reliable, which is suitable for promotion at small and medium sized greenhouse.

关 键 词：温室灌溉 控制系统 需水模型 决策支持 RS-485 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]