IoT based Health Monitoring System

Dive Guard is an IoT-based real-time health and safety monitoring system designed to enhance the security of scuba divers during underwater activities. Traditional diving practices rely heavily on manual monitoring and diver experience, which can lead to delayed detection of critical physiological or environmental risks. The proposed system integrates wearable waterproof sensors to continuously track key biometric parameters—such as heart rate, oxygen saturation, and body temperature—along with environmental variables including depth, water temperature, and remaining tank pressure. Sensor data is transmitted wirelessly to a surface-level monitoring station using low-frequency acoustic communication or optimized RF technologies suitable for underwater transmission. The collected data is processed and analyzed to identify early signs of distress, enabling timely alerts to dive supervisors or rescue teams. The system also logs dive profiles for post-dive evaluation and safety compliance. By combining IoT connectivity, real-time analytics, and ergonomic design, Dive Guard improves situational awareness, reduces accident risk, and supports safer, more data-driven diving operations for both recreational and professional.