Self-adaption electrocardiograph (ECG) detection method and monitoring system thereof
A monitoring system and self-adaptive technology, applied in applications, diagnostic recording/measurement, medical science, etc., can solve the problems of reducing the correct rate of doctors' disease diagnosis, limited information, and large volume.
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[0052] The present invention will be further described below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0053] figure 1 It is a flowchart of an adaptive ECG detection method, comprising the following steps:
[0054] S1. Band-pass filtering the output ECG signal of the acquisition module;
[0055] S2. Perform an absolute value calculation on the signal processed in step S1;
[0056] S3. Low-pass filtering the signal processed in step S2;
[0057] S4. Setting a threshold to detect the R wave in the signal processed in step S3.
[0058] In this embodiment, a sampling rate of 512 Hz is used to sample the ECG signal. The band-pass filter in step S1 is a Butterworth filter with a 6th-order pass band of 10 Hz to 30 Hz, and a lower cut-off frequency f l =10Hz, higher cutoff frequency f h =30Hz, sampling rate f s =512Hz, substitute into the formula ω can be calculated l with ω h , and then substitute ...
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