Portable intelligent fetal movement counter and processing method for acquiring signal

Abstract

The invention relates to a portable intelligent fetal movement counter and a method of processing collecting signals, which mainly comprises a pressure sensor, a signal conditioning module, a signal collecting module, a signal processing module, a liquid crystal drive circuit and a liquid crystal display. The signal conditioning module is constituted by the cascade connection of a condenser filter, an instrument magnifier, a low-pass filter, a two-pole magnification and polarity conversion circuit and an A / D conversion circuit. The output signals of the signal collecting module are rounding preprocessed by the signal processing module, and is reconstructed by a secondary-generation wavelet transformation Mallat algorism, and fetal movement counting signals are outputted after being distinguished with classification and intelligently analyzed by a BP neural net algorism. The invention can enable pregnant women to finish the automatic supervision of fetal movement under the conditions of no affection on daily activities and no need to lie quietly, which has the advantages of simple reliability, practicability and effectiveness.

Description

technical field [0001] The invention relates to the field of bioelectronics intersecting electronics and medicine, which combines biomedical information collection, signal and information processing with modern electronic technology, and specifically belongs to an intelligent electronic counter for detecting fetal movement of pregnant women. Background technique [0002] Prenatal and postnatal care is an important national policy of our country, and perinatal (28 weeks of pregnancy to 4 weeks after delivery) monitoring technology is of great significance to ensure the safety of mothers and babies. Fetal movement monitoring during pregnancy is generally considered to be an important indicator that is completely harmless to the mother and fetus and can well reflect the safety of the fetus in utero. Fetal movement is one of the objective symbols of fetal life, and it is a sign that the fetus is in good condition. Normal fetal movement predicts the health of the fetus in the ut...

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Problems solved by technology

[0003] At present, there is no pocket-type fetal movement counter product with intelligent analysis function for home use in China, and only the ultrasonic imaging detection and analysis system is used to detect the condition of the fetus; on the basis of the traditional ultrasonic imaging system that cannot accurately detect dynamic parameters, foreign countries are developing In terms of detection and analysis, a dynamic real-time ultrasonic imaging detection and analysis system for quantitative measurement of fetal movement is being developed

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