基于无线传感器网络的作物水分状况监测系统研究与设计

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，论文采用无线传感器网络技术，设计了作物水分状况监测系统。该系统实现了信息采集节点的自动部署、数据自组织传输，可以使人们随时随地精确获取作物需水信息，包括引起作物水分亏缺的环境信息（温度、湿度、土壤温度、土壤湿度）以及水分亏缺时作物水分生理指标微变化信息等。它具有功耗低、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。该文为无线传感器网络在设施农业中的应用做出了探索性研究

Research and design of crop water status monitoring system based on wireless sensor networks

In order to precisely determine the extent of the water deficit and thus to provide a scientific reference for precision irrigation, a particular design of crop water status monitoring system based on wireless sensor networks (WSN-CWSM) is proposed. The designed WSN-CWSM system implements the automatic deployment of data gathering sensor nodes and self-organization wireless communication, which enables crop growers to precisely acquire the crop water requirement information at any time and any place, including the environmental factors related to crop water deficit, such as temperature, humidity, soil temperature and soil humidity, and the micro-changes in crop physiological indexes of water stress, such as acoustic emission signal, stem diameter microvariation. It possesses many improvements, such as low energy consumption, inexpensiveness, good robustness, flexible extensibility. Preliminary experimentations prove the rationality and practicability of this system. It can be effectively applied to greenhouse, cropland, and nursery garden, etc. This paper contributes to the exploration research on the applications of WSN in facility agriculture.