Respiratory rate estimation method and apparatus, and wearable device
A technology of respiratory rate and measurement method, which is applied in the direction of evaluating respiratory organs, measuring pulse rate/heart rate, diagnostic recording/measurement, etc., and can solve problems such as poor signal-to-noise ratio, additional equipment, and unsuitability for continuous monitoring
Inactive Publication Date: 2018-12-07
SAMSUNG ELECTRONICS CO LTD
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Problems solved by technology
Capnography has relatively high accuracy but requires additional equipment and presents difficulties when continuous monitoring is required
[0007] For example, impedance pneumography is a method for measuring changes in thoracic volume and has high accuracy but poor signal-to-noise ratio
Therefore, this method has not been widely used
[0008] In addition, although a method for estimating respiration rate using an accelerometer worn on the chest is provided, it is not suitable for continuous monitoring because the accelerometer is fixed at its attachable position and is sensitive to motion
Also, there is a negative impact on high power consumption due to the additional use of sensors
Method used
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[0027] Hereinafter, example embodiments of the inventive concepts will be described with reference to the accompanying drawings. Those of ordinary skill in the art should understand and appreciate that the inventive concepts recited in the appended claims are not limited to the example embodiments shown herein.
[0028] figure 1 is a flowchart of a breathing rate measurement method according to an embodiment of the present inventive concept.
[0029] refer to figure 1 In the illustrated example, at operation S110, a heartbeat signal may be extracted to measure a respiration rate.
[0030] For example, the extracted heartbeat signal can be extracted by various types of equipment, including but not limited to, an electrocardiogram signal measured using an electrocardiogram (ECG) device and a pulse wave signal measured by a photoplethysmography (PPG) sensor kind of.
[0031] However, the type of the device for extracting the heartbeat signal in example embodiments of the inve...
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A respiratory rate measuring method and apparatus, and a wearable device are provided that utilizes a heartbeat signal to detect the respiratory rate without motion detection of a patient's body. Themethod includes extracting a heartbeat signal, extracting an amplitude modulation (AM) signal and a frequency modulation (FM) signal through AM and FM with respect to the extracted heartbeat signal, respectively, performing normalization on the AM signal and the FM signal. The normalized AM signal and the normalized FM signal are combined into a single combined normalized signal, and a respiratoryrate is calculated by extracting a respiratory frequency band from the combined normalized signal.
Description
[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2017-0061468 filed on May 18, 2017 at the Korean Intellectual Property Office, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The inventive concept relates to a breathing rate measuring method, a breathing rate measuring device and a wearable device. Background technique [0004] Respiratory rate is the most basic vital sign used in determining the basic vitality of the body. Various methods are used to measure respiration rate, such as measuring the number of breaths per minute. [0005] For example, spirometry is a method of measuring the air volume of the lungs by measuring the flow of air in and out of the lungs using a spirometer. Capnography is a method of measuring the concentration, or partial pressure, of carbon dioxide in the breath gas of a breath. Capnography has relatively high acc...
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IPC IPC(8): A61B5/08A61B5/0245
CPCA61B5/0245A61B5/0816A61B5/02438A61B5/7278A61B5/7235A61B5/08A61B5/024A61B5/318A61B5/7214A61B5/02416A61B5/346
Inventor 李升宰金秀容朴相植朴庸仁柳承材
Owner SAMSUNG ELECTRONICS CO LTD