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Heart rate monitoring method based on pulse wave in exercise state

A heart rate monitoring and pulse wave technology, which is applied in the measurement of pulse rate/heart rate, diagnostic record/measurement, medical science, etc. The effect of noise interference

Active Publication Date: 2021-08-13
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

In view of the above existing problems, the present invention proposes a pulse wave heart rate monitoring method with low complexity and a small amount of calculation. The equipment using this method can realize accurate monitoring of heart rate even in the presence of motion noise interference

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  • Heart rate monitoring method based on pulse wave in exercise state
  • Heart rate monitoring method based on pulse wave in exercise state
  • Heart rate monitoring method based on pulse wave in exercise state

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Embodiment Construction

[0049] The present invention will be further described below.

[0050] The invention proposes a heart rate monitoring method using an adaptive filtering technology combined with a spectrum peak selection method and a heart rate verification and estimation algorithm. Among them, the adaptive filtering technology uses the composite signal of the three-axis acceleration signal as a reference signal to help realize real-time heart rate monitoring based on the pulse wave in the state of exercise. The technical scheme of the present invention is as attached to the description figure 1 As shown, the system mainly includes signal acquisition, adaptive filtering, power spectrum calculation and spectrum peak selection, heart rate calculation, verification and estimation, heart rate output and other parts. In order to realize the real-time monitoring of heart rate, it is necessary to periodically calculate the heart rate according to the collected signal and then output it, so the opera...

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Abstract

A pulse wave heart rate monitoring method with low complexity and a small amount of calculation, the method simultaneously uses the adaptive filtering technology using the synthetic acceleration signal as a reference, the spectral peak selection method that uses the synthetic acceleration signal information to eliminate residual artifacts, and takes into account the period Among the three heart rate verification and estimation algorithms for the maximum heart rate change, the device using this method can achieve continuous real-time high-precision heart rate monitoring even in the presence of motion noise interference, so it is especially suitable for medical and health fields and smart wearables. Among heart rate monitoring devices.

Description

technical field [0001] The invention relates to a digital signal processing technology, which is suitable for heart rate monitoring equipment in the fields of medical care and smart wear, can effectively eliminate noise interference caused by exercise, and improve the accuracy of heart rate monitoring. Background technique [0002] Heart rate refers to the number of times the heart beats per minute. It is an important physiological indicator that reflects the blood circulation function of the human body and can provide a reference for medical diagnosis. In addition, heart rate is also used as an evaluation index for judging the intensity of exercise physiological load in fitness exercises and competitive sports training. Therefore, the monitoring of heart rate has important significance. [0003] At present, mature heart rate monitoring methods include blood oxygen method, electrocardiographic signal method, arterial pressure method and photoplethysmography (PPG). 1) Blood...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/024
CPCA61B5/02438A61B5/6802A61B5/7203A61B5/7225
Inventor 袁学光张阳安马梦瑶
Owner BEIJING UNIV OF POSTS & TELECOMM