Relatório técnico do desenvolvimento de firmware para equipamento de telemetria com conexão via redes móveis

Abstract

The monitoring water and sewage networks across a city is relevant to various responsible entities, whether for leak control, consumption billing, or analysis of customer patterns. With the growing concern over water resources in the modern world, caring for these resources becomes a matter of general interest. To help solve these problems, telemetry equipment is used to monitor and transmit this information to the responsible parties. This work proposes a solution to automate data collection, featuring both analog and digital inputs, controlled digital outputs, and serial communications UART and RS-485 — the latter being used in the Modbus RTU protocol tandards widely employed in the equipment to be monitored that enable the tasks to be performed satisfactorily. The use of mobile networks for data transmission provides extensive service coverage by leveraging the cellular towers already spread throughout the country. In the tests of the proposed system, conducted in both laboratory and real-world environments provided by the Ensitec Tecnologia team, the results demonstrated its operational effectiveness, highlighting the solution’s potential as a promising alternative for monitoring water and sanitation networks in the future.