Prototipo de sistema de monitorización y gestión de datos Iota para el control de humedad y temperatura en cámaras frigoríficas

Abstract

Abstract: This thesis aims to develop an experimental IoT prototype for monitoring temperature and humidity in cold storage rooms. This type of monitoring is essential to ensure proper product preservation, contribute to compliance with storage regulations, and facilitate traceability. The proposed solution was developed using low-cost hardware and open-source software. In terms of architecture, the system consists of a DHT22 sensor integrated with an ESP32- WROVER microcontroller for data acquisition, and a Raspberry Pi 5 acting as a local server. Mosquitto was implemented as the MQTT broker, Node-RED for data processing, InfluxDB for data storage, and Grafana for data visualization and alert testing. The methodology involved the development and implementation of the prototype, followed by functional testing in a real-world environment to validate data acquisition, transmission, storage, and visualization. The results demonstrated stable system operation, with continuous data transmission, persistent storage, and proper real-time visualization. In conclusion, the developed prototype constitutes a viable solution for local temperature and humidity monitoring in cold storage rooms, with potential for future improvements in accuracy, security, and scalability.