Medição de umidade de solo utilizando tensiômetro e sensor granular adaptados a uma rede de sensores sem fios

Abstract

This work aims at setting up a measurement system for soil moisture in agricultural areas. Motivation is to collect data from sensors of soil moisture through a network of wireless sensors, providing greater speed and accuracy of readings and less human effort. Was created a network with the purpose to transmit the collected data to a concentrator unit (computer) where they are processed and transformed into useful information. For the measurement of moisture, we used a tensiometer and a humidity sensor for the Watermark 200SS, which are part of the network. Tests conducted in the laboratory of the network showed deviation of 15% using a tensiometer and 10% of humidity sensor using the Watermark 200SS on a standard meter.