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Fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof

A technology of sensing intelligence and clothing, which is applied in clothing, sensors, clothing, etc., can solve the problems of large detection unit, affecting detection accuracy, and inconvenient fabric combination, etc., and achieve the effect of high detection sensitivity and improved comfort

Active Publication Date: 2015-03-04
TIANJIN POLYTECHNIC UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above four kinds of smart clothing or wearable devices all use electrical sensors to detect human body parameters. Due to the antenna effect generated by the winding of conductive fibers, the electrical signal collection and transmission process is susceptible to electromagnetic interference, reducing the signal-to-noise ratio of the collected signal. Affect detection accuracy
In addition, the detection unit (sensor) in the invention patent 201210151420 and the utility model patent 201320696659 is bulky and has a certain weight, which is not easy to combine with the fabric, which affects the comfort of clothing
In addition, smart clothing based on electrical sensors cannot work in strong electromagnetic interference and strong magnetic field environments, which limits the application of smart clothing

Method used

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  • Fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof
  • Fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof
  • Fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof

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specific Embodiment approach

[0096] The algorithm mainly includes: heart sound preprocessing, heart sound peak point processing and heart sound start and end point processing. Among them, heart sound peak point processing includes mathematical morphology envelope extraction of linear structural elements, segmental threshold processing, removal of interference peaks, There are four parts to determine the peak point; the heart sound start and end point processing includes three parts: the extraction of the mathematical morphology envelope of the cosine structural element, the determination of the threshold for judging the start and end point of each segment, and the determination of the start and end point. The specific implementation is as follows:

[0097] (1) Pretreatment

[0098] Absolute value and normalization processing are performed on the heart sound signal, so that the heart sound signal is converted into a standard signal with an amplitude between 0 and 1.

[0099] (2) Mathematical Morphological...

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Abstract

The invention discloses a fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof. The fiber-optic sensing intelligent garment comprises a garment body, a fiber Bragg grating pulse sensor, a fiber Bragg grating heart sound / breath sensor, an optical signal processing unit and an information processing terminal; the optical signal processing unit is used for wavelength demodulation and signal transmission; the information processing terminal is used for parameter information displaying, storage and remote communication. The heart sound parameter processing method of the fiber-optic sensing intelligent garment is a method of judging mathematical morphological peaks of heart sounds and mathematical morphological start-stop points through linear structure elements and cosine structure elements. The blood pressure parameter processing method of the fiber-optic sensing intelligent garment includes blood pressure model establishing and blood pressure estimating. The fiber-optic sensing intelligent garment has high electromagnetic interference resistance and high detection sensitivity, is applicable to places with strong magnetic field, high electromagnetic noise, strong radiation or the like and is applicable to body sign monitoring in magnetic resonance imaging, safety monitoring for physical conditions of mine workers, clothing of astronauts, safety clothing of fire fighters and the like.

Description

technical field [0001] The present invention relates to the technical field of smart clothing, and more specifically, relates to an optical fiber sensing smart clothing and a method for processing heart sound and blood pressure parameters. Background technique [0002] Smart clothing refers to clothing that can perceive the external environment or internal state and respond in a timely manner. It is a new field for the development of the clothing industry. The parameters of human body signs, such as body temperature, heart rate, blood pressure, etc., reflect the health of the human body. By monitoring these parameters, the occurrence of certain diseases, such as cardiovascular and cerebrovascular diseases, can be prevented. In addition, in some special occasions or working environments, it is also necessary to monitor the physical parameters of the human body in real time. Because clothing is wearable and does not affect people's normal activities, clothing is an ideal carr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0205A41D13/00A41D27/00
CPCA41D13/1281A61B5/0059A61B5/0205A61B5/6804
Inventor 张诚苗长云杨昆赵军发穆殿伟田新宇沈子淇
Owner TIANJIN POLYTECHNIC UNIV
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