Pure dynamic heart rate signal calculation method, device and smart wearable device

A smart wearable device and heart rate signal technology, which is applied in measuring pulse rate/heart rate, medical science, diagnosis, etc., can solve the problems of unable to add and subtract PPG signals, not equal to noise signals, and unable to obtain pure PPG signals, etc., to achieve improvement The effect of data analysis ability

CN109044316BActive Publication Date: 2021-02-02GEER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-02-02

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Abstract

The invention discloses a method for calculating a pure dynamic heart rate signal in smart wear, which includes: acquiring a photoplethysmograph PPG signal and an acceleration signal of a smart wear device in real time, and identifying the current user state; the user state includes a static state and a motion state; When the user state is in the motion state, extract the PPG signal in the static state before entering the motion state and within the preset time range; construct a pure PPG signal based on the PPG signal in the static state, the PPG signal in the motion state, and the acceleration signal . The present invention can calculate the pure PPG signal without noise in the motion state according to the currently available PPG signal and acceleration signal, which is convenient for the user to carry out subsequent calculation and analysis in various scenarios based on the pure PPG signal; the present invention also discloses a A device, a smart wearable device, and a computer-readable storage medium based on the above method.
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Description

technical field

[0001] The invention relates to the technical field of smart wearable devices, in particular to a method and device for calculating pure dynamic heart rate signals in smart wearables. The invention also relates to a smart wearable device and a computer-readable storage medium. Background technique

[0002] When the smart wearable device acquires the dynamic heart rate data, it will acquire a PPG (Photoplethysmography, photoplethysmography) signal and an acceleration signal reflecting the dynamic heart rate. The PPG signal is used to reflect the heartbeat signal, which is projected into the skin by emitting light, then reflected back, and received by the receiver. The fluctuation of the PPG signal reflects the change of arterial blood, that is, the heartbeat, that is, the dynamic heart rate.

[0003] Since the smart wearable device cannot be completely close to the skin, it may shake with the movement. This regular shaking with the movement will be recorded ...

Examples

Embodiment Construction

[0041] The core of the present invention is to provide a pure dynamic heart rate signal calculation method in smart wear, which can calculate the pure PPG signal without noise in the exercise state according to the currently available PPG signal and acceleration signal, which is convenient for users to follow up based on the pure PPG signal. Calculation and analysis in various scenarios; another core of the present invention is to provide a device based on the above method, a smart wearable device, and a computer-readable storage medium.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on th...