A low-cost Internet of Things (IoT) system for multi-patient ECG's monitoring

This paper discussed one application of IOT as media data transmission for the electrocardiogram (ECG) signal. We developed ECG monitoring system that can be accessed by several users simultaneously via the internet network. The system consists of ECG hardware, transmission module based on Zigbee and web server for data storage and web application. The ECG signal taken from body's patients is acquired by the ECG machine, and then raw data is sent serially to the computer server using Zigbee. Furthermore, the data can be accessed by other authorized parties via the web pages for the purpose of treatment or consultation. By using this application, patients with heart diseases can interact and consult with a cardiologist anytime and anywhere. The testing result shows that the system can handle up to 20 users without errors. Meanwhile for 50–150 user some errors occurred due to insufficient bandwidth or high data traffic on the server.