基于茎直径变化的无线传感器网络作物精量灌溉系统

为实现准确判断作物水分亏缺程度,为精量灌溉提供科学依据,该文基于作物水分胁迫茎直径微变化诊断方法,研发了无线传感器网络节点,并设计了无线传感器网络精量灌溉系统。该系统可以使人们随时随地精确获取作物需水信息,并实现精量灌溉。该系统具有功耗低、成本低廉、鲁棒性好、扩展灵活等优点。初步试验表明了该系统的合理性与实用性。可以应用于温室、农田、苗圃等区域。该研究为无线传感器网络在节水农业中的应用做出了探索。

Preliminary study on crop precision irrigation system based on wireless sensor networks for stem diameter microvariation

In order to precisely determine the extent of the water deficit and thus to provide a scientific reference for the precision irrigation,a wireless sensor networks(WSN)node was designed and a particular design of WSN-based crop precision irrigation system(WSN-CPI)was proposed based on the stem diameter microvariation diagnosis method for water stress.The designed WSN-CPI system enables users to precisely acquire the crop water requirement information and thus to implement the precision irrigation at any time and anywhere.It possesses many advantages,such as low energy consumption,inexpensiveness,good robustness,flexible extensibility,etc.Preliminary experimentations indicate the rationality and practicability of the system.It can be effectively applied to greenhouse,cropland,and nursery garden, etc.This research contributes to the exploration on the applications of WSN in water-saving agriculture.