基于LoRa的花生土壤水分监测系统设计与试验  

Design and Experiment of Peanut Soil Moisture Monitoring System Based on LoRa

作　　者：漆海霞[1,2] 董义洁 林圳鑫 兰玉彬 Qi Haixia;Dong Yijie;Lin Zhenxin;Lan Yubin(College of Engineering,South China Agricultural University,Guangzhou 510642,China;National Center for International Collaboration Research on Precision Agricultural Aviation Pesticides Spraying Technology,Guangzhou 510642,China)

机构地区：[1]华南农业大学工程学院,广州510642 [2]国家精准农业航空施药技术国际联合研究中心,广州510642

出　　处：《农机化研究》2021年第8期69-74,共6页Journal of Agricultural Mechanization Research

基　　金：广东省科技计划项目(2019B020214003);广东省科技计划项目(2017A020225039);广东省教育厅普通高校特色创新项目(2019-2021)。

摘　　要：花生的需水量根据不同生长阶段和环境条件而不同,开花期和结荚期需水量较多,而土壤水分含量会直接影响花生生长的水分供给,从而影响花生产量和品质。为了及时监测大田花生生长土壤水分状况,减小恶劣天气造成的影响,设计了一套基于LoRa的花生土壤水分监测系统。测试结果表明:在终端节点与网关相距800m远时,通信成功率可达94%以上。系统具有通信距离远、监测面积广的特点,能够应用于户外大面积的数据采集、监测中,具有一定的实用价值。同时,土壤水分监测试验发现同一田块不同位置的土壤水分差异明显,应该进行针对性的灌溉补水。The water requirement of peanuts varies according to different growth stages and environmental conditions. The water requirement during flowering and pod formation is more, and the soil moisture content directly affects the water supply of peanuts, thus affecting the yield and quality of peanuts. In order to timely monitor the soil moisture status of the peanuts in the field and reduce the impact of bad weather, a LoRa-based peanut soil moisture monitoring system was designed. After testing, the results show that when the terminal node is 800 m away from the gateway, the communication success rate can reach more than 94%. The system has the characteristics of long communication distance and wide monitoring area, and can be applied to outdoor large-area data acquisition and monitoring applications, and has certain practical value. At the same time, the soil moisture monitoring test was carried out. It can be seen that the soil moisture difference is obvious in different locations of the same field, and targeted irrigation and hydration should be carried out.

关 键 词：花生 土壤水分 监测系统 LoRa 

分 类 号：S237[农业科学—农业机械化工程]