Iot-Based System For Real-Time Monitoring Of Temperature And Relative Humidity In Blood Banks
DOI:
https://doi.org/10.61799/2216-0388.2088Keywords:
Blood bank, Environmental monitoring, ESP32, Internet of Things, Relative humidity, Temperature.Abstract
Continuous monitoring of temperature and relative humidity is essential to guarantee the quality and safety of blood components stored in blood banks. In many hospital environments environmental monitoring is still performed using manual records, which limits the historical tracking of environmental conditions and complicates the generation of reports for auditing and control processes. This work presents the development and implementation of an automated system for monitoring temperature and relative humidity in the Component Separation Area of the Blood Bank at Clínica San José de Cúcuta. The system consists of an electronic device based on an ESP32 microcontroller and an SHT31 digital sensor for environmental data acquisition. The collected data are transmitted wirelessly to a local Raspberry Pi server, where they are processed using the Node-RED platform and stored in an InfluxDB time-series database for real-time visualization and historical analysis. As part of the validation process, the device was subjected to metrological calibration through comparison with a certified reference instrument. The results showed stable system performance, with a maximum error of ±0.80 °C in temperature and ±3 % in relative humidity. These findings demonstrate the feasibility of implementing Internet of Things technologies for environmental monitoring in blood banks, improving the traceability of environmental conditions and supporting supervision and quality control processes in clinical environments.
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