Method and device for detecting electrocardiographic signal
An electrocardiographic signal and detection method technology, applied in the field of signal processing, can solve the problems of electronic interference signal detection, reducing the validity of electrocardiographic signals, reducing the accuracy of human health analysis, etc., to achieve the effect of improving accuracy and effectiveness
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Embodiment 1
[0037] figure 1 It is a flow chart showing a method for detecting an electrocardiographic signal according to Embodiment 1 of the present invention. by including as Figure 8 The computer system of the shown detection device executes the detection method.
[0038] refer to figure 1 , in step S110, acquire an audio ECG signal, the audio ECG signal is a modulated audio ECG signal collected by the ECG acquisition device within a first preset time period.
[0039] Wherein, the ECG collection device may be an electrocardiograph, or a mobile terminal device with a function of collecting ECG signals, etc. The first preset duration can be set according to actual conditions, and the first preset duration can be specifically 5 seconds or 10 seconds.
[0040] Specifically, the electrocardiographic collection device may include electrodes for collecting electrocardiographic signals. When it is necessary to detect the heart health of a person to be detected, the electrodes can be plac...
Embodiment 2
[0057] Figure 4 It is a flow chart showing a method for detecting an electrocardiographic signal according to Embodiment 2 of the present invention, and the embodiment can be regarded as figure 1 Another specific implementation scheme of .
[0058] refer to Figure 4 , in step S410, acquire an audio ECG signal, the audio ECG signal is a modulated audio ECG signal collected by the ECG collection device within a first preset time period.
[0059] In step S420, signal detection is performed on the audio ECG signal according to a preset amplitude and frequency detection algorithm to determine whether the audio ECG signal is abnormal.
[0060] Specifically, the audio ECG signal is obtained through the processing of the above step S110 or step S410, and the audio ECG signal is preprocessed to obtain the preprocessed audio ECG signal, for example, the audio ECG signal is filtered , removing signals exceeding the effective frequency range in the audio ECG signal, and only retainin...
Embodiment 3
[0079] Figure 7 It is a flow chart showing the audio ECG signal detection method according to the third embodiment of the present invention, which can be regarded as a specific processing scheme of step S420 in the second embodiment above.
[0080] The abnormality of the audio electrocardiographic signal may include various situations, for example, the audio electrocardiographic signal includes an audio interference signal, or the audio electrocardiographic signal does not satisfy a preset signal demodulation condition so that the audio electrocardiographic signal cannot be demodulated. Based on various situations of abnormality of the audio ECG signal, the processing of the above step S420 may specifically include the following:
[0081] First, considering that if the audio ECG signal is abnormal, the audio amplitude of the audio ECG signal will be different from the audio amplitude of the audio ECG signal under normal conditions, therefore, the audio frequency of the audio ...
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