Design and Development of Dual Channel ECG Simulator and Peak Detector

Abstract

For the training of Doctors as well as for design, development and testing of automatic ECG machines, a subject with a known abnormality of heart is essentially required. ECG Simulator is an electronic device used to simulate such subject for the above-mentioned purpose. The significance of the ECG simulator is that the subject has been replaced by the Data File. In this project dual channel ECG Simulator has been designed, developed and implemented. The waveforms can be displayed on the PC monitor as well as output through a parallel port of the PC. Subsequently these can be displayed on digital storage oscilloscope. The simulated electric waves are presented to electronic peak detectors. The detected peaks exactly tally with the annotated peaks in the given ECG database; thereby authenticating its efficacy. Prerecorded ECG Signals with known diagnostic truths were obtained from MIT-BIH ECG database. Two channel recordings were simulated, with a novel way to segregate the combined text file to two different analog output channels. The simulator produces realistic ECG with the possibility of including other biological signals, e.g. blood pressures. This program can be used as a teaching tool as well as for testing ECG monitors.