a decentralised health management system based on blockchain and iot
Sujith S,Selvaganapathy D,Sarath Kumar J,Hemanath E
Published in International Journal of Advanced Research in Computer Science Engineering and Information Technology
ISSN: 2321-3337 Impact Factor:1.521 Volume:6 Issue:3 Year: 31 March,2026 Pages:2075-2079
Abstract
The healthcare industry faces significant challenges in maintaining secure, transparent, and tamper-proof medical data due to the limitations of centralized systems. This work presents a decentralized health data management system that integrates IoT devices with blockchain technology to ensure data security and integrity. IoT sensors connected to an Arduino Uno, including DHT11 for body temperature monitoring and MAX30102 for heart rate and SpO₂ measurement, collect real-time health data. The system uses Python for both frontend and backend development, with Streamlit providing an interactive data pipeline and visualization interface. Smart contracts written in Solidity are deployed on an Ethereum test network using Ganache, enabling secure storage and verification of health records on the blockchain. The blockchain infrastructure ensures immutability, traceability, and controlled access to medical data. This solution can be extended to hospital information systems, telemedicine platforms, and personal health monitoring applications, enhancing data interoperability, patient privacy, and trust in digital healthcare systems.
Kewords
Block Chain, IOT, HealthCare System.
Reference
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