文献类型：期刊文献

英文题名：RETRACTED: Large-Area Saline-Alkali-Tolerant Rice Growth Environment Monitoring System Based on LoRa plus UAV (Retracted Article)

作者：Mo, Chunmei[1];Xie, Zaimi[2];Wang, Ji[1]

机构：[1]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Sch Math & Comp Sci, Zhanjiang 524088, Guangdong, Peoples R China

年份：2022

卷号：2022

外文期刊名：ADVANCES IN MATERIALS SCIENCE AND ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000901951700002)、、WOS

基金：This study was supported by National Natural Science Foundation of China (51777046); New Generation Information Technology Special Project in Key Fields of Guangdong Colleges and Universities (2020ZDZX3008); and Key special Project in Artificial Intelligence Field of Guangdong Province (2019KZDZX1046)

语种：英文

外文摘要：A wireless sensor network (WSN) monitoring system for saline-alkali-tolerant rice based on long-range + unmanned aerial vehicle (LoRa + UAV) has been proposed in this paper to meet the requirements of difficult deployment, low scalability, and poor network reliability of traditional farmland environmental monitoring systems. The system automatically forms a double-layer star topology network through the terminal node and central node (intranet), central node, and UAV mobile node (extranet). Data transmission is carried out through LoRa technology, routing planning is carried out for UAV mobile receiving nodes at different flight altitudes, and an early warning mechanism for UAV energy is added. It effectively prevents the UAV from destroying the communication capability of the external network due to energy exhaustion during operation. The system transmits information remotely to the server of the management center through a 5G network, which analyzes and processes the data and publishes it on the Web. The system has been tested in the field, and the reliable communication range of the node is 1-4 km under the salinealkali-tolerant rice environment, and the service life of the terminal node can reach more than 3 months. During continuous operation, the maximum packet loss rate of the internal and external integrated networks is 1.45%. The system can stably and real-time monitor saline-alkali-tolerant rice environmental information, and the error rate is less than 10%, which can meet the performance requirements of the saline-alkali-tolerant rice environmental monitoring systems, such as low power consumption, wide coverage, stability, and reliability, and has a good engineering significance.