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Signal processing method of fetal heart rate detection sensor matrix of multi-dimensional channel sensor

A technology for detecting sensors and signal processing, applied to sensors, measuring pulse/heart rate, measuring pulse rate/heart rate, etc., can solve the problems of difficult operation of monitoring instruments, difficult to achieve personal and family use, etc., to suppress interference noise, accurately Measure the signal, easy to use effect

Active Publication Date: 2021-05-07
孙磊 +2
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  • Abstract
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  • Application Information

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Problems solved by technology

This is greatly limited in use and needs to be completed in a hospital under the guidance of a doctor
[0008] To sum up, the current monitoring equipment is difficult to operate, and it is difficult to realize personal and family use.

Method used

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  • Signal processing method of fetal heart rate detection sensor matrix of multi-dimensional channel sensor
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  • Signal processing method of fetal heart rate detection sensor matrix of multi-dimensional channel sensor

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Embodiment Construction

[0051] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0052] A fetal heart rate detection sensor matrix of a multi-dimensional channel sensor provided by the present invention includes a plurality of sensors. Each sensor includes multiple sound-sensitive unit groups, such as figure 1 As shown, each sound-sensitive unit group includes a plurality of sound-sensitive units 1 . Such as figure 2 In the shown embodiment, 16 sound-sensitive units 1 are divided into four groups, but the present invention is not limited to this. Multiple sound sensitive unit gr...

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Abstract

The invention provides a signal processing method of a fetal heart detection sensor matrix of a multi-dimensional channel sensor. The signal matrix is ​​obtained by using the fetal heart detection sensor matrix of a multi-dimensional channel sensor, the matrix eigenvector is analyzed and processed, an energy spectrum function is constructed and a fetal heart signal is extracted. The invention utilizes the passive sensor, completely avoids the potential harm to pregnant women and fetuses caused by active emission. Effectively suppress interference noise, so that the actions in daily life will not affect the data of fetal heart rate monitoring. No lying down measurement is required. In the case of fetal fetal position movement, the signal can still be accurately measured, which is convenient for pregnant women or family members to use.

Description

technical field [0001] The invention relates to the field of medical detection equipment, in particular to a fetal heart rate detection sensor matrix of a multi-dimensional channel sensor, a signal processing method thereof, and a wearable device. Background technique [0002] The basic principle of the traditional fetal heart rate monitoring method based on ultrasonic transmitters is to transmit signals to the abdomen of pregnant women, and the ultrasonic signals will generate reflections when they pass through different parts of human tissue. When the ultrasonic signal encounters the fetal heart, it will also be reflected, and this reflection will produce a Doppler frequency shift due to the motion characteristics of the target. By observing the speed of frequency offset change, it can be used to analyze fetal heart rate data. [0003] This kind of fetal heart rate monitoring method based on ultrasonic emission is still in use today. The main problems with this approach ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/024A61B5/00A61B8/02
CPCA61B5/02411A61B5/6804A61B5/7203A61B5/7221A61B8/02
Inventor 张庆全杨秦山孙磊
Owner 孙磊
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