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Motion state heart rate processing method and monitoring device

A motion state and processing method technology, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve the problems of inaccurate heart rate, R wave false detection and missed detection, etc., achieving the effect of small calculation amount and strong anti-interference ability

Inactive Publication Date: 2018-01-12
TAICANG T&W ELECTRONICS CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the interference of motion artifacts during exercise, there are a large number of false detections and missed detections in the R wave, so most methods have inaccurate heart rate extraction problems.

Method used

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  • Motion state heart rate processing method and monitoring device
  • Motion state heart rate processing method and monitoring device
  • Motion state heart rate processing method and monitoring device

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Embodiment Construction

[0040] Below in conjunction with embodiment the present invention is described in further detail.

[0041] Such as Figure 1~2 An embodiment of a heart rate processing method in a state of exercise shown in the present invention includes the following steps:

[0042] Step 1, set the sampling frequency and the sampling time of the buffer area, the sampling time of the buffer area is an integer multiple of 0.5 seconds, and greater than 1.5 seconds, then collect the ECG digital signal in the buffer area under the exercise state; (this implementation For example, the adoption time of the buffer area set is 4s,)

[0043] Step 2. Use the Butterworth bandpass filter to filter out the baseline drift, power frequency interference, myoelectric noise, P wave and T wave in the ECG digital signal, and only keep the QRS wave;

[0044] Step 3, continue to strengthen the amplitude of the R wave by using the variance-like filtering calculation method to obtain the strengthened electrocardiog...

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Abstract

The invention relates to a motion state heart rate processing method which includes the steps: first, acquiring electrocardiogram digital signals in a four-second cache region in a motion state; second, filtering baseline drift, power frequency interference and myoelectric noise in the electrocardiogram digital signals by a Butterworth band-pass filter, and only retaining QRS (quantum resonance spectrometer) waves; third, adopting class variance filter continued enhanced R waves; fourth, determining an interval threshold value; fifth, positioning the R waves; sixth, finding out the count of the R waves in the cache region; seventh, calculating heart rate. The motion state heart rate processing method is strong in interference resistance, the R waves can be accurately recognized, the heartrate is further accurately calculated, and the problem of heart rate calculation inaccuracy caused by motion artifact is effectively solved. Besides, the invention further provides a motion state heart rate monitoring device.

Description

technical field [0001] The invention belongs to an evaluation method and device for exercise load, in particular to a processing method and a detection device for heart rate in an exercise state. Background technique [0002] Heart rate is one of the important indicators to reflect exercise intensity and energy consumption. Heart rate monitors can be used to collect exercise heart rate and time, and calculate energy consumption levels. Therefore, monitoring heart rate changes during exercise is one of the effective means to reflect exercise load. Its usual operation is to first detect the electrical signals of different parts of the body surface, then amplify them with an amplifier, and record them with a recorder to obtain an electrocardiogram, and then calculate the heart rate value according to the R wave reflected in the electrocardiogram; therefore , the problem of heart rate calculation is actually the problem of correctly identifying the R wave in the ECG signal. How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0245A61B5/0456A61B5/352
Inventor 叶飞常凇铭李新志
Owner TAICANG T&W ELECTRONICS CO LTD
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