ECG signal processing using offline-wavelet transform method based on ECG-IoT device

In this paper, a wireless system for human heart monitoring/Electrocardiograph (ECG) based on Android Smartphones was proposed. The Cardiac signals was recorded from three electrodes and attached to a subject's body that connected to the ECG amplifier module. In this module, the signals were pre-prosessed and sending the result to the smartphone via Bluetooth. Next step, the result of signals stored in the database (computer server) and SD card from smartphones. Furthermore, the signals that stored were synchronized with Cloud Server through the Internet using the Rest API as Final Data. The final data signal was displayed on the web to be used by users in real time. Its can be used and processed by algorithms of signal processing for further analysis using Wavelet Transform (WT). Finally, this system well used for application monitoring heart signals accurately.