Non-contact bcg signal processing system and method based on optical fiber sensing

A non-contact, signal processing technology, applied in the field of signal processing, which can solve the problems of evaluation, unstable waveform amplitude, inability to be used as cardiac contractility, etc.

Active Publication Date: 2022-07-05
WUHAN UNIV OF TECH
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Problems solved by technology

[0006] At present, the processing of BCG signals is focused on signal denoising, and the BCG signal amplitude after simple denoising and restoration cannot be used as an index for evaluating cardiac contractility because of the unstable waveform amplitude caused by inspiration.

Method used

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  • Non-contact bcg signal processing system and method based on optical fiber sensing
  • Non-contact bcg signal processing system and method based on optical fiber sensing
  • Non-contact bcg signal processing system and method based on optical fiber sensing

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

[0028] like figure 1 A non-contact BCG signal processing system based on optical fiber sensing is shown, which includes a physiological signal processing module 1, a signal-to-noise ratio improvement module 2, a power spectrum frequency acquisition module 3, an energy envelope peak position acquisition module 4, and a key a waveform position amplitude acquisition module 5, a signal normalization processing module 6 and a scatter diagram construction module 7;

[0029] The physiological signal processing module 1 is used to perform signal separation processing on the collected original physiological signals by using a matrix iterative decomposition method to remove aliased noises caused by breathing, body movement and body tremors in the signals, so as to obtain a cardiac beat cardiogram. For the signal, see Chinese Patent, 2021100311...

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Abstract

The invention discloses a non-contact BCG signal processing system based on optical fiber sensing, which comprises a physiological signal processing module, a signal-to-noise ratio improvement module, a power spectrum frequency acquisition module, an energy envelope peak position acquisition module, and a key waveform position amplitude The acquisition module, the signal normalization processing module and the scatter diagram building module; after the signal is denoised, the present invention compensates the influence of the breathing wave on the BCG signal acquisition process by correcting the signal, so that the BCG signal provides more Cardiac status assessment data.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a non-contact BCG signal processing system and method based on optical fiber sensing. Background technique [0002] The heart is an important organ of the human body. Whether its work is normal or not is an important indicator for evaluating human health. Clinically, the working condition of the heart can be evaluated by detecting the electrophysiological function of the heart and the physiological function of the pump. However, patients with heart disease may have a sudden onset, and new functional detection methods used in clinical often cannot detect this situation in time. Therefore, it is necessary to develop a real-time monitoring device for cardiac function in daily life to detect abnormal cardiac conditions in time and prompt medical treatment in time. Early detection of lesions and timely treatment. [0003] When the heart beats, when the blood is discharged f...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11A61B5/00
CPCA61B5/1102A61B5/72A61B5/6891A61B5/6892
Inventor 李政颖詹婧黄龙庭赵涛陈可为徐佳琪周英洪桂鑫傅雪蕾
Owner WUHAN UNIV OF TECH
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