[Development of a portable ambulatory ECG monitor based on embedded microprocessor unit].

OBJECTIVE

To develop a new kind of portable ambulatory ECG monitor.

METHOD

The hardware and software were designed based on RCA-CDP1802. New methods of ECG data compression and feature extraction of QRS complexes were applied to software design. A model for automatic arrhythmia analysis was established for real-time ambulatory ECG Data analysis. Compact, low power consumption and low cost were emphasized in the hardware design.

RESULT

This compact and light-weight monitor with low power consumption and high intelligence was capable of real-time monitoring arrhythmia for more than 48 h. More than ten types of arrhythmia could be detected, only the compressed abnormal ECG data was recorded and could be transmitted to the host if required.

CONCLUSION

The monitor meets the design requirements and can be used for ambulatory ECG monitoring.