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Heart rate detection method and device

A detection method and heart rate technology, applied in the detection field, can solve problems such as inability to detect heart rate in real time, and achieve the effect of real-time detection of heart rate

Active Publication Date: 2014-05-07
SHENZHEN BREO TECH CO LTD
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Problems solved by technology

[0009] The purpose of the embodiments of the present invention is to provide a heart rate detection method, aiming to solve the problem that existing technical solutions cannot detect heart rate in real time

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  • Heart rate detection method and device

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Embodiment Construction

[0028] 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.

[0029] The specific embodiment of the present invention provides a heart rate detection method, which is set on a finger when the probe used in the pulse oximeter is used. Two light-emitting diodes (LEDs) placed side by side are fixed on the upper wall, which emit red light with a wavelength of 660nm and infrared light with a wavelength of 940nm. There is a photoelectric detector on the lower wall, which converts the red light and infrared light transmitted through the finger arteries into electrical signals. The weaker the photoelectric signal detected by it, it means that when the light signal pe...

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Abstract

The invention relates to the field of detection, and provides a heart rate detection method and device. The heart rate detection method includes the steps of sending infrared light with the wave length being 940nm to a finger to be detected according to the set frequency, receiving infrared light intensity IR values after the infrared light passes through the finger, storing the IR values within the set time, and calculating the number of stored maximal IR values, wherein the number of the maximal IR values is the heart rate P. According to the technical scheme, the heart rate detection method has the advantage of detecting the heart rate in real time.

Description

technical field [0001] The invention belongs to the detection field, in particular to a heart rate detection method and device. Background technique [0002] Oxygen content: the actual amount of oxygen carried by hemoglobin in 100ml of blood. It is mainly the oxygen actually bound by hemoglobin, and a very small amount of oxygen dissolved in plasma (only 0.3ml%). Hemoglobin bound to oxygen becomes oxyhemoglobin (HbO2), and hemoglobin dissociated from oxygen becomes reduced hemoglobin. Oxygen saturation (SaO2) refers to the percentage of oxygen actually bound in the blood (hemoglobin) (oxygen content) to the maximum amount of oxygen that can be bound in the blood (hemoglobin) (oxygen capacity). Therefore, the definition of blood oxygen saturation can be expressed as [0003] SaO2=CHbO2 / (CHbO2+CHb)×100% [0004] Blood oxygen saturation: In 100mL of blood, the maximum amount of hemoglobin combined with oxygen can be considered as the oxygen capacity of the blood. The oxyge...

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Application Information

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IPC IPC(8): A61B5/024
CPCA61B5/02416A61B5/6826
Inventor 马学军吴明辉
Owner SHENZHEN BREO TECH CO LTD