An ECG drawing method, module and device

Abstract

The invention discloses a method, module and device for drawing an electrocardiogram waveform. The method calculates a resampling threshold according to the data sampling rate, drawing resolution and drawing rate of input electrocardiographic data, and then calculates a resampling threshold according to the resampling threshold. The ECG data is resampled to obtain the drawing data drawn this time; then, according to the arrangement position of the ECG channels, the initial position of the drawing data of the current channel is calculated; then, combined with the unfinished drawing data of the previous drawing, the The drawing data that actually needs to be drawn this time; finally, according to the drawing rate, it is judged whether the drawing data that actually needs to be drawn this time can be drawn at one time, if not, adjust the number of drawing data until it can be drawn at one time. Therefore, the present invention calculates the sampling threshold between the data and the pixel, and uses the sampling threshold to perform sub-sampling, so as to maintain the amplitude value and morphological twists and turns of the ECG data, so that the ECG waveform can be drawn more smoothly and carefully.

Description

technical field [0001] The present invention relates to the technical field of waveform drawing, and in particular, to a method, module and device for drawing an electrocardiogram waveform. Background technique [0002] During clinical application, it is crucial to draw waveforms in a balanced, real-time and accurate manner. At present, the drawing method of the ECG waveform is as follows: the ECG signal acquisition device performs sampling at a fixed sampling rate, and then transmits the sampled ECG signal to the waveform drawing module through a cable for drawing. Among them, the ECG signal acquisition device obtains the ECG waveform through electrodes placed on the patient's body surface and in the cardiac cavity, and different diseases will have different detailed shapes, and different drawing resolutions and drawing rates will have different waveform shapes. The performance, especially the ECG waveform in the cardiac chamber, the accurate and detailed drawing of the EC...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of drawing ECG waveforms due to the fact that the acquisition rate of ECG signals is not synchronized with the drawing rate, and the sampling rate of ECG signals is inconsistent with the drawing resolution when drawing ECG waveforms. Inaccurate and detailed, the drawing of ECG waveform is unstable and smooth

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