The mobile ECG and motion activity monitoring system for home care patients

The basic idea of this work was to develop user- friendly mobile wireless ECG and motion activity recording device, software for real time signal analysis and warning system based on ordinary or pocket PC and designed for home care patients with cardiac risk. The mobile patient device includes 3 channel ECG front-end recorder, 3-axis accelerometer and Bluetooth module. Feedback signaling to patient is provided with sound, vibration and light or their combination. The software makes input signals pre-processing, recognition and measurement of ECG parameters, calculates breathing frequency from the ECG signals and evaluates patient activity from the motion signals in the real time. Finally monitoring system makes a decision about patient state changes from the calculated parameters using the convolution of Mealy and Moore automata, and in case of appearance of dangerous situation sends the warning signal to patient and analysis results to physician on duty.