Optical fiber based monitoring system for multiple physiological parameters

Abstract

The invention discloses an optical fiber based monitoring system for multiple physiological parameters and belongs to the field of medical health surveillance. The monitoring system comprises a lightreceiving and transmitting terminal and sensing optical fiber, wherein the sensing optical fiber is used for transmitting a sensing optical signal carrying vibration information to the light receivingand transmitting terminal; the light receiving and transmitting terminal converts an interference optical signal obtained by coupling the sensing optical signal with a reference optical signal into adigital signal and distinguishes objects by the digital signal; short-time Fourier transform and average filtering processing are performed on the digital signal, and the respiratory rate is acquiredby frequency domain peek seeking; after heartbeat waveform is obtained through high-pass filtering of the digital signal, behavior identification is performed by calculating frequency spectrum energy; systolic pressure is obtained after the heartbeat waveform is subjected to time domain energy signal extraction and average filtering processing; the heartbeat waveform is subjected to FFT frequencydomain peek seeking to obtain the heartbeat. The optical fiber based monitoring system is applicable to family medical surveillance and higher in comfort degree.

Description

technical field [0001] The invention belongs to the field of medical health monitoring, and more specifically relates to a monitoring system for multiple physiological parameters based on optical fiber. Background technique [0002] Medical monitoring has become an indispensable part of modern clinical medicine, and plays a vital role in clinical diagnosis, critical illness treatment, and surgical safety. Due to the shortage of medical resources and the aging of the social population, it is becoming more and more inconvenient to perform medical monitoring in hospitals. With the development of the Internet and science and technology, some simple medical health indicators can be monitored at home, such as breathing, heart rate, blood pressure and other vital signs. [0003] At present, technologies for measuring indicators such as respiration, heart rate, and blood pressure are mainly divided into electronic sensors and optical fiber sensors. Electronic sensors have been dev...

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a monitoring system of multiple physiological parameters based on optical fiber, which aims to solve the problem that the existing medical monitoring system cannot simultaneously monitor systolic blood pressure, heart rate and respiration rate on the same module and needs The problem of poor monitoring comfort due to close contact with the monitored object

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