Non-obtrusive electrocardiogram system for the Smart Rollator

The objective of the Smart Rollator project is to enable health care monitoring through embedding electronic sensing systems. This paper examines adding an ECG system to a rollator, designed specifically to interface with two gel-less electrodes. The focus is to develop a circuit with minimal filtering of the signal, just sufficient to extract valuable ECG information reliably using digital processing techniques. A prototype system is built and evaluated, its performance compared to a conventional three-electrode ECG amplifier. Preliminary results demonstrate that the proposed circuit can be used for the Smart Rollator application.