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, inability to be used as cardiac contractility, unstable waveform amplitude, etc.

Active Publication Date: 2021-10-15
WUHAN UNIV OF TECH
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  • Abstract
  • Description
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AI Technical Summary

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] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0028] Such as 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 Waveform position and amplitude acquisition module 5, signal normalization processing module 6 and scatter diagram construction module 7;

[0029] The physiological signal processing module 1 is used to perform signal separation processing on the collected original physiological signal by using matrix iterative decomposition method, and remove noise caused by aliasing breathing, body movement and body trembling in the signal, so as to obtain a heart beat shockcardiogram Signal, see Chinese patent, 202110031183.3 Physiologic...

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Abstract

The invention discloses a non-contact BCG signal processing system based on optical fiber sensing. The non-contact BCG signal processing system comprises a physiological signal processing module, a signal-to-noise ratio increasing module, a power spectrum frequency obtaining module, an energy envelope wave crest position obtaining module, a key waveform position amplitude obtaining module, a signal normalization processing module and a scatter diagram construction module. According to the invention, after the signal is denoised, the signal is corrected to compensate the influence of the respiratory wave on the BCG signal acquisition process, so that the BCG signal provides more heart state evaluation 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, and whether its work is normal is an important indicator for evaluating human health. Clinically, the heart's working condition can be evaluated by detecting the electrophysiological function of the heart and the physiological function of the pump. However, patients with heart disease may suddenly develop a disease, and the new functional detection methods used in clinical practice often cannot detect this situation in time. Therefore, it is necessary to study a real-time cardiac function monitoring device for daily life, which can detect abnormalities in the heart in time and prompt medical treatment in time. Early detection of lesions and timely treatment. [0003] When the heart beats, blood is dischar...

Claims

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Application Information

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Patent Type & Authority Applications(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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