A New Ecg Module Design

The DCG (Dynamic electrocardiogram) which could trace patient's heart activity continuously is essential for clinical diagnosis of cardiovascular disease. Whether the ECG (Electrocardiograph) monitoring equipment could capture the arrhythmia exactly and in time, is the key factor affecting the judgement to the state of illness and subsequent therapy. Therefore, it is great significant to research high performance ECG monitor in clinic. The rapid development of electronical technology has supported this research with good condition.ECG monitor module included signal collection channel and related data processing based on MCU. The signal collection channel which adopted high performance integration instrument amplifier was designed according to the features of ECG signal. MSP430F149 MCU was used in controlling lead-switch , state-switch and the A/D conversion. Digital signal processing technique was adopted in the ECG signal pretreatment. Refered to existent ECG analysis algorithm and based on the characteristic of ECG wave, an ECG characteristic points detection algorithm and 50Hz frequency digital filter was proposed for MCU.All this research work which were described in detail in this thesis validated the feasibility of the design practically. The studies of this thesis were helpful for the practical product development.