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PPG signal based respiratory rate measurement method and device

A measurement method and measurement device technology, which are applied in the directions of diagnostic recording/measurement, medical science, sensors, etc., to achieve the effect of wide usage scenarios and fast measurement

Pending Publication Date: 2021-03-16
SHENZHEN FENDA SMART TECH LTD
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Problems solved by technology

[0003] The main purpose of the present invention is to provide a method and device for measuring respiration rate based on PPG signal, aiming at solving the problems of existing respiration measurement

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  • PPG signal based respiratory rate measurement method and device
  • PPG signal based respiratory rate measurement method and device
  • PPG signal based respiratory rate measurement method and device

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049] An embodiment of the present invention provides a method for measuring respiration rate based on a PPG signal. The PPG is photoplethysmography (PhothPlethysmoGraphy, PPG). The detection method is to obtain the volume pulse wave by detecting the change of blood volume in the arterioles and capillaries. The PPG signal is a composite signal, mainly composed of 5 frequencies distributed i...

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Abstract

The invention provides a PPG signal based respiratory rate measurement method and device. The method includes the following steps: collecting PPG signals in real time; performing first processing on the PPG signals so as to obtain a first processing signal, wherein the first processing includes filtering and differential processing; performing second processing on the first processing signal so asto obtain an upper envelope; and calculating final respiratory rate according to the upper envelope. In addition, a PPG signal based respiratory rate measurement device is also provided. Through theprovided measurement method and device, the measurement of the respiratory rate can be realized through the PPG based signals; and compared with existing respiratory rate measurement methods, the measurement method and device are small in influences from the outside, wide in application scenario, simple in operation, easy to carrying and faster in measurement.

Description

technical field [0001] The invention relates to the technical field of respiration rate measurement of PPG signals, in particular to a method and device for measuring respiration rate based on PPG signals. Background technique [0002] Existing methods for measuring respiration include thoracic impedance, inductance plethysmography, temperature measurement, airflow detection, humidity detection, and carbon dioxide level measurement. Disadvantages such as inability to carry and slow measurement. Contents of the invention [0003] The main purpose of the present invention is to provide a method and device for measuring respiration rate based on PPG signals, aiming at solving the problems of existing respiration measurement. [0004] In order to achieve the above object, the present invention provides a method for measuring respiration rate based on PPG signal, said method for measuring respiration rate based on PPG signal includes: [0005] Step S10: collecting PPG signals...

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Application Information

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IPC IPC(8): A61B5/0205A61B5/11
CPCA61B5/0205A61B5/11A61B5/7203A61B5/7225A61B5/725
Inventor 李莉陈亚佩李双吴保盛
Owner SHENZHEN FENDA SMART TECH LTD
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