The DCG Recorder Based On ARM7 Microprocessor

Electrocardiogram monitor is a precise electronic-medical equipment in modern medical research and clinic diagnosis. The electrocardiogram monitoring system mainly consisted of the function of collecting, analyzing and diagnosing heart-electricity signals is widely used, which records the signals of heart-electricity impulse to check out the condition of a patient's heart, to prevent or diagnosis heart attack. It is of great use and meaning in protecting people's physical health and improving people's life quality.The very circuit in charge of collecting and processing heart-electricity signals is the main part of a electrocardiogram monitor, which is a monitoring circuit that processes both analog and digital signals. The former of that monitoring circuit is a heart-electricity collecting system based on analog technique, behind of which is a wave-showing circuit totally based on digital signal processing. The structure of this monitoring circuit is clear and easy to accomplish.In the former part about theory concerns, we introduce the definition and character of bioelectricity signals, the restrict of bioelectricity signal detecting, the principle of heart-electricity signals producing and the character of heart-electricity signals, so that we could get full awareness of the differences between heart-electricity signals and other...