Projeto e simulação de eletrocardiógrafo de baixa complexidade

Abstract

This work addresses biosignal data acquisition and processing systems, more specifically the signals that make up the electrocardiogram, these signals coming from the electrical excitation of the cardiac muscle can, with the appropriate device, be read on the skin of the patient and help the doctor diagnose various heart problems. This work aims to discuss the current approach present in the literature for systems of acquisition for ECG signals and theoretically proposes a new topology for the acquisition of these signals. The matlab software was used to simulate the filters and the offset circuit that makes up the part of ECG data acquisition and processing, mit-bih database data with acquisition values of ECG signals were used to simulate the tensions to be read on the patient’s skin and feed the signal processing system, noises were added to analyze the behavior of the system against disturbances. React-naitve was used to prototype the data display application on the smartphone, it can be implemented on Android and iOS. Finally, we present the system input and output curves for system analysis purposes.