A multi-hop wireless sensor network for in-situ agricultural applications
Jobish John, Vinay S Palaparathy, Gaurav S. Kasbekar, Maryam Shojaei Baghini · 2019
This paper presents the design and implementation of a wireless sensor network (WSN) for agricultural monitoring applications using a multi-hop tree based architecture. Each sensor node is equipped with different sensors such as soil moisture (custom built), atmospheric temperature and relative humidity sensors. The nodes use TelosB modules for wireless communication. The implemented testbed consists of 20 nodes covering an area of 120 m×150 m. Each node reported its sensor data at every 1 hour interval to the base station along the data collection tree following a time synchronized periodic sleep wake-up schedule. The maximum depth of the constructed data collection tree was observed as 5 hops in the implemented network. The performance of the in-house developed soil moisture sensors are evaluated through the implemented WSN and the difference between the measured soil moisture and the commercial time domain reflectrometry is observed as ±3%. © 2019 URSI. All rights reserved.