Implementación de un prototipo de red inalámbrica de nodos inteligentes para la supervisión en tiempo real de variaciones climáticas.

Abstract

The objective of this present graduate research was to implement a wireless network prototype with smart nodes for real-time monitoring of climatic variations that can work in remote places and at low cost. The prototype allows obtaining weather data such as temperature, relative humidity, atmospheric pressure, altitude, direction, and speed of the wind for monitoring and control. For the system it was developed with nodes: the sensor node which is responsible for obtaining the climate variables in real-time displayed on LCD screen from the reading point and the master node allowing data collection that sent by the sensor node through ZigBee wireless communication, the received information is displayed in real-time through the Wifi network on the free Thing Speak platform determining the place and time, the measured parameters are stored in a removable memory available in the node. The system validation was carried out at the Escuela Superior Politécnica de Chimborazo with the M1036 weather station belonging to the National Institute of Meteorology and Hydrology (INAMHI), where the test results showed that the temperature sensor presents an error of 2 ℃, the relative humidity sensor has 5%, the atmospheric pressure sensor has 1hPa, the sensor altitude has 1 m.a.s.l., for the wind speed sensor has a sensitivity of 0.96667m/s and for the wind direction is performed qualitatively due to the variation. It is concluded that sensors do not reflect errors that of the same measuring instrument so the system is reliable. It is recommended solar panels being incorporated to avoid alkaline contamination from rechargeable batteries and have a longer operating time system.