Build Miniaturized Ecg System And The Filtering Algorithm

The "miniaturized standard 12 leads ECG device" advanced in this subject is a handheld ECG device which is low-power,low-cost and has whole basic functions. This ECG device includes controlling module, gathering module and display module by functions. It's kernel uses the Samsung 2410A ARM microprocessor and takes Windows CE as it's operating system .This paper emphasize the construction procedure of Windows CE 5.0 embeded operating system and the design and realization of ECG noises filter. The construction procedure includes developing and implanting Windows CE 5.0 Boot Loader and OAL,developing and implanting display driver and touch screen driver.From the system view, There is limited system resource, and the displaying and drawing of ECG data need a lot of CPU and memory resources, therefore the main object of the filter is how to process the data from 12 leads in real-time. This subject realizes a filter based on Integer Coefficients digital filter and tests it by ECG data in Matlab. This filter is found be able to satisfy the requirement of practical application after analysizing and comparing the filtered result, And the most important thing is this filter need few calculations and is very efficient. It is suitable for real-time filtering.