HYBRID LORA-WIFI GATEWAY DESIGN FOR SECURE COMMUNICATION IN ARMED FORCES

Abstract

The "LoRa-Based Soldier Security System Integrated with IoT" aims to enhance real-time monitoring and safety of soldiers in the field through advanced wireless communication and IoT technologies. The system comprises two key units: a Transmitter (Tx) and a Receiver (Rx). The Tx unit integrates vital sensors such as SpO2 and heartbeat sensors, a keypad emergency button, an LCD display, a buzzer, and a LoRa transmitter module. The Rx unit consists of a LoRa receiver module, an LCD display, a buzzer, and IoT integration for remote monitoring. Data from the sensors on the Tx side, including critical health parameters, are continuously monitored. If any parameter crosses predefined threshold values or the emergency button is pressed, an alert is triggered on both the Tx and Rx units via buzzers and LCD displays. Simultaneously, the alert is transmitted to an IoT server for real-time notification to higher authorities. The system employs an Arduino Uno on the Tx side for sensor data acquisition and an ESP32 on the Rx side for IoT communication. This project offers a reliable, low-power, and long-range communication solution, ensuring timely responses during critical situations and improving overall soldier safety and operational efficiency