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我们共同研制的《智能心电监护仪》已于八六年十二月通过鉴定,临床应用效果良好。在仪器研制过程中,我们主要解决了如下四方面问题。第一,心电测量的予处理。目的是排除心电测量中引入的工频干扰,手段是使用微型计算机对心电波形进行处理,方法是硬件采样,软件滤波,硬件复元心电波形。具体内容可以这样表示:心电测量放大后的心电波形D送A/D转换器进行数字量转换→转换结果送入计算机RAM区储存→由程序进行数字滤波排除工频干扰→滤波后数字量送D/A转换器进行模似量转换→复元心电波形。复元的心电波形其分辨率高,基线平滑,
We jointly developed the “smart ECG monitor” passed the appraisal in December 1986, the clinical application of good results. In the instrument development process, we mainly solve the following four aspects. First, ECG measurement to be processed. The purpose is to exclude the introduction of frequency measurement of ECG interference, the means is to use micro-computer to deal with ECG waveform, the method is hardware sampling, software filtering, hardware complex ECG waveform. Specific content can be expressed as follows: Enlarge ECG ECG waveform sent to A / D converter digital conversion → conversion results into the computer RAM storage → by the program to eliminate digital frequency filter frequency interference → filtered digital Send D / A converter for analog quantitative conversion → complex ECG waveform. Complex ECG waveform its high resolution, the baseline smooth,