基于作物水分胁迫声发射技术的无线传感器网络精量灌溉系统的初步研究

Preliminary study on precision irrigation system based on wireless sensor networks of acoustic emission technique for crop water stress

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声发射技术,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。

In order to precisely determine the extent of the water deficit and thus to provide a scientific reference tor me precision irrigation, a wireless sensor networks （WSNs） node was designed and a particular design of WSNs precision irrigation system （WSN-PI） is proposed based on the acoustic emission technique for crop water stress. The designed WSN-Pt system enables usere to precisely acquire the crop water requirement information and thus to implement the precision irrigation at any time and everywhere. 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 the greenhouse, the cropland, and the nursery garden, etc. This research contributes to the exploration on the applications of WSNs in water-saving agriculture.