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Heart rate detection method and heart rate detection device

A detection method and technology of heart rate, applied in the measurement of pulse rate/heart rate, diagnostic record/measurement, medical science, etc., can solve the problems of strong motion noise, weak signal strength, difficult to filter, etc., and achieves low algorithm calculation and reduced The effect of power consumption

Active Publication Date: 2021-07-09
HANGZHOU SILAN MICROELECTRONICS
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Problems solved by technology

However, the PPG signal (that is, the photoplethysmography sensor signal) is a biological signal extracted from the skin surface, and its signal strength is weak and susceptible to interference.
Especially in the process of exercise, due to tissue interference, venous blood volume and optical path changes, the motion noise is very strong, so the weak PPG signal will be mixed with strong noise signals, which is difficult to filter out

Method used

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  • Heart rate detection method and heart rate detection device
  • Heart rate detection method and heart rate detection device
  • Heart rate detection method and heart rate detection device

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Embodiment Construction

[0076] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown.

[0077] In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0078] figure 1 A block diagram of a heart rate detection device according to an embodiment of the present invention is shown. The heart rate detection device can be placed on the chest or other corresponding positions for obtaining heart rate data. Correspondingly, a heart rate detection de...

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Abstract

The application discloses a heart rate detection method and a heart rate detection device. The heart rate detection method includes: receiving a photoplethysmography sensor signal and a motion signal; determining the state of the human body according to the motion signal; calculating the spectrum of the photoplethysmography sensor signal; and obtaining the spectrum of the photoplethysmography sensor signal with motion noise removed based on the spectrum of the motion signal; and calculating the estimated heart rate value according to the spectrum of the photoplethysmography sensor signal with motion noise removed. By distinguishing the motion state of the human body, the method removes the interference noise caused by the motion to the signal of the photoplethysmography sensor, improves the accuracy of heart rate calculation, saves power consumption, and improves detection efficiency.

Description

technical field [0001] The invention belongs to the technical field of heart rate detection, in particular to a heart rate detection method and a heart rate detection device. Background technique [0002] Heart rate refers to the number of times the human heart beats per minute. In the detection of human body parameters, heart rate is a very important physiological indicator, which provides a reference for medical diagnosis. At the same time, heart rate, as an objective evaluation index of the physiological load of human exercise, has been widely used in various aspects of fitness and competitive sports training. [0003] Photoplethysmography (PPG) is a non-invasive heart rate detection method that detects changes in blood volume in living tissue by means of photoelectric means. When the light beam of a certain wavelength is irradiated on the skin surface, the light beam will be transmitted to the photoelectric receiver through transmission or reflection. During this proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/024A61B5/00
CPCA61B5/02416A61B5/02438A61B5/6802A61B5/7203A61B5/7207A61B5/725
Inventor 谢宜航邓登峰
Owner HANGZHOU SILAN MICROELECTRONICS
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