Desenvolvimento de uma plataforma de hardware e software livres para monitoramento remoto e instrumentação de barragens

Abstract

This work aims to develop a pilot project of an online Monitoring System for implementation in dam instrumentation, using a platform and free software. The research methodology was carried out in 6 stages, as follows: the literature review; the selection of the development board; the development of a data logger; the development of an application for analog sensor reading; the implementation of the Monitoring System in a controlled environment and the implementation of the Monitoring System in the field. Finally, the conclusions obtained with the elaboration of this research were: the chosen development board, the ESP8266, had a satisfactory performance, being able to be programmed by the Arduino development environment, besides having wifi connection, which allowed the construction of a Data Logger that uses a wireless network, with IP addressing for data presentation. The application created, developed in IDE Android Studio, had satisfactory answer, being able to log in the IP address of the Data Logger, and present the user, in real time, the results on screen. Controlled environment tests were performed to verify the response of a pressure sensor, and in the field, where it was possible to obtain trend curves in each of these environments with great precision, however, by comparing the curves obtained with the curve. standardized calibration, only the convergence of the readings values up to the value of the head height equal to 3 mca was observed, whereas values of head height of 3 to 6 m.c.a. demonstrated approximately 1% dispersion from the standard curve and readings above 6 m.c.a. presented dispersion greater than 5%. This was only possible to identify because the application has a sampling period of 800 milliseconds, thus ensuring a reading in practically real time.