Transmisión de la señal ECG mediante un sistema de radiofrecuencia

Abstract

This paper presents the implementation of an electrocardiogram (ECG) signal transmission system by radiofrequency, for real time remote monitoring of free mobility patients in continue time. The system digitalizes two canals of 50 Hz bandwidth and 12 bits resolution, which multiplex on time division. The transmission is half-duplex, with FSK modulation, to 4800 bps, in ISM band to 433 MHz. The system autonomy is reached with two battery sets to commuter between both, depend on charge level, to obtain a uninterrupt performance. The experiment results show that our system is consume low, robust, reliable and aproximately 30 meters length range, convenient to biomedical applications.