earticle

영어

Many applications for agricultural information and environment monitoring exploit buried sensors wired-connected to the soil surface for information retrieval. A novel wireless underground sensor networks is a specialized kind of wireless sensor network that communicates through soil. The wireless underground sensor networks (WUSN) consist of wireless devices that are buried completely under dense soil and operate below the ground surface. In this paper, the application research of the wireless underground sensor networks is described. Experimental measurements of the signal strength and packet error rate are presented at the frequency of 433MHz, which show a good agreement with the theoretical studies. The results show the buried depth of the WUSN node and the volumetric water content of the soil are the most important factor to adversely affect the communication.