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Method for obtaining heart rate and electronic equipment

A technology for electronic equipment and heart rate, which is used in pulse rate/heart rate measurement, medical science, sensors, etc., and can solve problems such as affecting the optical signal strength of optical receivers

Active Publication Date: 2022-02-01
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Or, during the user's exercise, the electronic device and the user's skin move relatively, which affects the intensity of the optical signal received by the optical receiver

Method used

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  • Method for obtaining heart rate and electronic equipment
  • Method for obtaining heart rate and electronic equipment
  • Method for obtaining heart rate and electronic equipment

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Embodiment Construction

[0061] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also Plural expressions are included unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used in this application refers to and includes any and all possible combinations of one or more of the listed items.

[0062] In the method for an electronic device to detect heart rate by using PPG, the electronic device includes a light transmitter and a light receiver. The electronic device can be worn on the user's wrist, abdomen, leg, etc., so that the light emitter can be close to the user's skin. The light emitter can transmit light signals to the user's skin. The light signal emitted ...

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Abstract

The invention relates to a method for reducing noise in a photoplethysmography signal and an electronic device. The method for reducing noise in the photoplethysmography signal and the electronic device are provided. The electronic device may include a first light emitter, a second light emitter, a first light receiver, and a second light receiver. The first light emitter and the second light emitter can respectively emit a first light signal and a second light signal with different wavelengths to the skin surface of a user. The first optical receiver may generate a first PPG signal based on the received first light signal. The second optical receiver may generate a second PPG signal based on the received second light signal. The second PPG signal may be used to determine a magnitude of noise in the first PPG signal. The electronic device can use the second PPG signal to reduce noise in the first PPG signal and obtain the heart rate according to the noise-reduced first PPG signal. By implementing the scheme, the electronic equipment can reduce the noise in the PPG signal and improve the accuracy of heart rate detection.

Description

technical field [0001] The present application relates to the technical field of terminals, and in particular to a method for obtaining a heart rate and an electronic device. Background technique [0002] Photoplethysmography (photoplethysmography, PPG) is a non-invasive detection method for detecting blood volume changes in blood vessels by means of photoelectric means. At present, electronic devices can use PPG to detect the user's heart rate and blood oxygen saturation. Wherein, the electronic device may include an optical transmitter and an optical receiver. The electronic device can be worn on the user's wrist, abdomen, leg, etc., so that the light emitter can be close to the user's skin. The light emitter can emit light signals to the skin surface. The optical receiver can receive the reflected or scattered optical signal and generate the PPG signal. The above emitted light signals can be absorbed, reflected and scattered by blood, skin, muscle, bone and other tiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0205A61B5/1455A61B5/00
CPCA61B5/0205A61B5/14551A61B5/14542A61B5/02416A61B5/02427A61B5/02438A61B5/681A61B5/7203A61B5/721A61B5/6802A61B5/6824A61B5/6823A61B5/6828A61B5/02433A61B2562/046Y02D30/70A61B5/7214A61B5/7225A61B2562/0219
Inventor 杨素林
Owner HUAWEI TECH CO LTD
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