Sistema de coleta de dados por meio de rede de sensores sem fio aplicado ao monitoramento de estruturas na construção civil

Abstract

The Structural Health Monitoring (SHM) technique is characterized by the use of data collected via sensors to assess the health of engineering structures. With continuous monitoring of a structure for a certain period, it is possible to evaluate and detect possible damage. In this technique, sensors are installed at various points, the data collected need to be available for analysis in a safe environment, which is characteristic of cloud computing services. However, in some scenarios it is not possible, or is extremely expensive to create a communication infrastructure. Analyzing this complexity, the present This work aims to develop a data collection system through a Sensor Network Wireless (WSN) integrated with a cloud storage service that can be applied in monitoring structures in civil construction. For the construction of the collection system, using the ESP-MESH protocol integrated with Amazon’s IoT Core service through the Message Queuing Telemetry Transport (MQTT) communication protocol. the storage of data was done through the DynamoDB service. The General protocol was also used. Packet Radio Service (GPRS) for internet communication in scenarios where it is not A local WiFi connection is available. Each of the steps was tested during the development. Finally, to validate the proposal of this work, the system in a laboratory test scenario, in which data were collected and made available from various monitored points of a reinforced concrete beam.