With the acceleration of the aging process, the incidence of cardiovascular and cerebrovascular diseases become one of the highest in the worldwide. In modern medicine, ECG gradually becomes an important basis for heart disease diagnosis. With the development of computer science, micro-chip technology and digital-signal processing etc, ECG automatic detection and analysis technology is constantly evolving. Dynamic ECG monitoring (Holter) can offer 24 hours-custody to the patients that can capture ECG abnormalities which cannot be easily found in short-term monitoring. With the promotion of the concept of personal medical and the tense environment of health care resources, the prospects of portable real-time ECG monitoring terminal device become very broad. Along with a variety of interference, the waveform of the patients ECG signal which were collected by Dynamic ECG monitor will change over time. In this case, it’s difficult to detect the abnormal ECG. The development of the real-time dynamic ECG detection algorithm which can be running quickly and accurately in the portable is mean great significance. In this paper, I got a deep study on the algorithm of detection of dynamic ECG signal applied in portable ECG monitor, and designed an detection algorithm for portable ECG monitor use which be able to meet the real-time and accuracy requirements the same time. The main work is as follows: 1) Gave a review of the Dynamic ECG monitor (Holter), and revealed the significance of the Dynamic ECG detection algorithm. Gave a review of the content and research objectives of this paper. 2) From a physiological point of view, gave an explain of the principle of the ECG. Explored the significance of the feature points of the ECG waveform. 3) Summarized the common waveform types of variation, According to the problem of dynamic ECG detection, I made a detail needs analysis of the algorithm. 4) Made a summarize of the ECG detection algorithm proposed in the past few decades, and gave an analysis of the advantages and disadvantages of every algorithm, discussed the possibility of the application of algorithm to portable ECG monitor. 5) Proposed an dynamic ECG detection algorithm which use the wavelet transform and adaptive-thresholding. In my algorithm, different feature points with different center frequency will be detected in different scales. The performance of the algorithm of P- and T- waves detection and the performance of real-time was optimized. At last, ...
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