Denoising method based on fetal heart rate detection and fetal heart rate detector

Abstract

The invention provides a denoising method based on fetal heart rate detection and a fetal heart rate detector, which are suitable for field of signal denoising. The denoising method comprises the steps of A11 collecting a Doppler frequency shift signal of a fetus, and resolving a first frequency signal related to a fetal heart rate from the Doppler frequency shift signal; A12 collecting a human body physiological signal of a pregnant woman, and resolving a second frequency signal related to a heart rate of the pregnant woman from the human body physiological signal; A13 comparing the first frequency signal with the second frequency signal, thereby obtaining a comparison result; A14 filtering out the first frequency signal when the comparison result belongs to a preset range, and executing the step A11; A15 outputting the first frequency signal when the comparison result does not belong to the preset range. Therefore, compared with the prior art, the more accurate first frequency signal can be output, and the position of the fetus can be accurately determined.

Description

technical field [0001] The invention belongs to the field of signal denoising, and in particular relates to a denoising method based on fetal heart rate detection and a fetal heart rate detector. Background technique [0002] Ultrasonic Doppler fetal heart rate meter is a small fetal heart rate detection device with advanced technology, simple operation and portability; it is suitable for real-time detection and monitoring of fetal heart rate in hospital obstetrics, clinics and pregnant women at home, and provides timely fetal health information for clinics. It is convenient to detect high-risk fetuses in time and reduce perinatal fetal mortality. [0003] But at present, during manual detection, due to the inaccurate placement, the detection accuracy is seriously affected, and it is easy to cause misdiagnosis and detect wrong fetal heart rate. For example, the vast majority of users have no clinical experience in fetal monitoring and cannot quickly and accurately find the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a denoising method based on fetal heart rate detection and a fetal heart rate detector to solve the problem of using the existing ultrasonic Doppler fetal heart rate meter, which does not filter out signals related to the heart rate of pregnant women, and erroneously outputs Problems with signals related to a pregnant woman's heart rate

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