IoT-Enhanced Transport and Monitoring of Medicine Using Sensors, MQTT, and Secure Short Message Service

The efficient and secure transport of temperature-sensitive medicines is crucial to maintaining their efficacy. This project presents an IoT-enhanced system for real-time monitoring and management of medicine transportation conditions. Utilizing a Raspberry Pi as the central controller, the system integrates various sensors and modules, including a DHT11 sensor for temperature measurement, a Peltier module for active thermal management, a CPU fan for additional cooling, and a relay for controlling the fan. The DHT11 sensor continuously monitors the temperature inside the medicine box. If the temperature exceeds a predefined threshold, the Peltier module activates to cool the environment, while the CPU fan is triggered via the relay to enhance cooling efficiency. Conversely, if the temperature drops below the optimal range, the Peltier module provides heat to maintain a consistent temperature.In addition to thermal management, the system incorporates a GSM module to send real-time alerts to users, including the current temperature and GPS location of the medicine box, ensuring that stakeholders can monitor the conditions remotely. All collected data, including temperature readings and GPS coordinates, are uploaded to an MQTT server, enabling continuous and secure data monitoring and analysis. This integration of IoT technology ensures that temperature-sensitive medicines are transported under optimal conditions, reducing the risk of degradation and ensuring their effectiveness upon delivery.

Keywords: Raspberry Pi, DHT11, Peltier module