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Method and device for measuring biological characteristic parameters

A technology of shunt coefficient and light-emitting unit, which is used in pulse rate/heart rate measurement, diagnostic recording/measurement, medical science, etc., can solve the problems of inaccurate measurement results and low heart rate measurement accuracy, and achieve the effect of improving accuracy

Pending Publication Date: 2022-06-03
HUAWEI TECH CO LTD
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Problems solved by technology

[0003] However, in the above-mentioned heart rate measurement method, the measurement accuracy of the heart rate is not high, and the measurement result is inaccurate

Method used

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  • Method and device for measuring biological characteristic parameters
  • Method and device for measuring biological characteristic parameters
  • Method and device for measuring biological characteristic parameters

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Embodiment Construction

[0055] The terms "first", "second" and "third" in the description and claims of the present application and the description of the drawings are used to distinguish different objects, rather than to limit a specific order.

[0056] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

[0057] In the embodiments of the present application, "at least one" refers to one or more, and "a plurality" refers to two or more. "And / or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A ...

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Abstract

The invention provides a biological characteristic parameter measuring method and device. The method comprises the steps of determining a target current on a first light-emitting unit which is currently lightened in a current period in a light-emitting module, and when it is judged that the target current is larger than a first preset value, obtaining shunting coefficients corresponding to the first light-emitting unit and a second light-emitting unit respectively, according to the shunting coefficients corresponding to the first light-emitting unit and the second light-emitting unit, current is distributed to the first light-emitting unit and the second light-emitting unit in the current period, so that target current on the first light-emitting unit is adjusted, and the first light-emitting unit and the second light-emitting unit emit light according to the distributed current. The biological characteristic parameters of the target object are measured. Wherein the absolute value of the difference value between the current received by the photoelectric conversion module and the second preset value is smaller than the third preset value, and the current distributed on the first light-emitting unit and the second light-emitting unit is smaller than or equal to the first preset value. The accuracy of the measurement result of the biological characteristic parameters can be improved.

Description

technical field [0001] The present application relates to the technical field of terminals, and in particular, to a method and device for measuring biological characteristic parameters. Background technique [0002] Nowadays, people pay more and more attention to the health of themselves and their families, among which heart rate monitoring is also particularly important. Currently, a photoplethysmography (PPG) sensor can be installed in wearable devices such as smart watches to monitor the user's heart rate in real time. Among them, the PPG sensor can control the light emitting diode (LED) module to emit light, and then receive the light signal reflected by the skin through the photo diode (PD), and convert the received light signal into an electrical signal, thereby Measure the human heart rate. [0003] However, in the above-mentioned heart rate measurement method, the measurement accuracy of the heart rate is not high, and the measurement result is inaccurate. SUMMAR...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0245A61B5/024A61B5/00
CPCA61B5/02427A61B5/0059A61B2562/0233A61B5/00A61B5/024A61B5/0245A61B5/1455
Inventor 袁豪
Owner HUAWEI TECH CO LTD
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