Cultivated Land Monitoring System Based on Dynamic Wake-Up UAV and Wireless of Distributed Storage

• 作者: Lei Yang Liping Bai Longqing Zhang Xiangdu Yan Xinwei Zhang Yanghong Zhang
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: Unmanned AERIAL VEHICLE WIRELESS sensor network signal INTENSITY
• 年，卷（期）: 2019,（8）
• 页码范围: 817-828
• 页数: 12页
• 分类号: TN9

摘要

The drawbacks of the traditional multi-hop structure of wireless sensor networks(WSNS)are susceptible to reflection,scattering and diffraction,serious attenuation of signal intensity and phase deviation due to various obstacles in cultivated land environment and mountains.In this paper,the wireless signal intensity is measured and curve fitting is done respectively in both open environment and obstacle-environment with both sending and receiving height of 0 m,1 m,and 2 m.It is found out that packet loss probability is too high when an obstacle exists.In such a case,unmanned aerial vehicle(UAV)is introduced to activate terrestrial nodes and operation mechanism of distributed storage.Experimental results show that both ground-to-air barrier-free communication and communication with obstacles can greatly reduce the energy consumption of each node and packet loss probability,thus greatly improving the reliability of UAV-WSN system.