Secure Iot Smart Health Monitoring System Using Blockchain Technology

Integrating the Internet of Things (IoT) into healthcare has enabled real-time tracking of patients' vital signs using connected devices.However, challenges such as data privacy, security, and compatibility with existing systems persist.This paper proposes a Secure IoT Smart Health Monitoring System incorporating cloud computing for data storage and blockchain technology to safeguard sensitive health information.The system uses IoT sensors to monitor key health metrics, including heart rate, glucose levels, and oxygen saturation, with data securely stored on a cloud platform.Blockchain ensures data integrity through decentralized, tamper-resistant records and employs smart contracts to automate and regulate access control.The system achieves an average latency of 150 milliseconds for data transmission, processes up to 200 health records per second, and maintains a 98% sensor accuracy rate.While the blockchain adds a layer of security, performance under high transaction loads highlights the need for scalability improvements.This solution offers a secure and efficient remote health monitoring platform, enhancing healthcare providers' real-time decision-making.