WO2015017998A1 - Lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain - Google Patents

Lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain Download PDF

Info

Publication number
WO2015017998A1
WO2015017998A1 PCT/CN2013/080977 CN2013080977W WO2015017998A1 WO 2015017998 A1 WO2015017998 A1 WO 2015017998A1 CN 2013080977 W CN2013080977 W CN 2013080977W WO 2015017998 A1 WO2015017998 A1 WO 2015017998A1
Authority
WO
WIPO (PCT)
Prior art keywords
bed
fiber grating
calculation unit
strain sensor
fiber
Prior art date
Application number
PCT/CN2013/080977
Other languages
English (en)
Chinese (zh)
Inventor
黄勃
Original Assignee
Huang Bo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huang Bo filed Critical Huang Bo
Priority to PCT/CN2013/080977 priority Critical patent/WO2015017998A1/fr
Publication of WO2015017998A1 publication Critical patent/WO2015017998A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02444—Details of sensor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6892—Mats
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0261—Strain gauges
    • A61B2562/0266—Optical strain gauges

Definitions

  • the present invention relates to the field of fiber grating sensing, and more particularly to a bed for monitoring physiological parameters of a human body based on a fiber Bragg grating sensor.
  • Optical fiber sensing technology was rapidly developed in the 1970s with the development of optical fiber communication technology. It is a new sensing technology that uses light waves as a carrier and optical fiber as a medium to sense and transmit externally measured signals.
  • These fiber sensors can be divided into three categories according to their range of functions: point sensors (such as fiber microbend sensors, fiber Fabry-Perot sensors, fiber Bragg grating sensors, etc.), integral sensors (such as fiber Michelson interferometers and fiber Mach-Zehnder interference). Instrument), distributed sensors (such as stress and temperature distributed sensors made with Brillouin scattering effect).
  • the bed of the present invention can be used to monitor physiological parameters such as heart rate, respiratory rate and body weight of the human body, and can perform non-invasive real-time monitoring of the health status of the human body.
  • a bed for monitoring physiological parameters of a human body based on a fiber Bragg grating sensor comprising a bed panel, four bed support legs for supporting the bed panel, wherein each bed support leg is provided
  • a fiber grating strain sensor all fiber grating strain sensors are connected in series by an optical fiber connected with a photoelectric module and a data processing module
  • the photoelectric module has an LED light source, an optical coupler and a demodulation unit, and an LED light source
  • the emitted light is injected into the fiber grating strain sensor through the optical coupler, and the light satisfying the reflection condition is reflected and then enters the demodulation unit through the optical coupler
  • the data processing module is located in a monitoring host, and the monitoring host is further connected with a comprehensive The result display platform;
  • the data in the data processing module sequentially passes through a frequency shift calculation unit, a Gaussian denoising unit, a pattern recognition unit, a fiber grating strain sensor temperature compensation calculation unit, a heart rate calculation unit, a respiratory frequency calculation
  • the bed for measuring physiological parameters of human body of the present invention has the following technical advantages in application:
  • the bed of the present invention provides non-invasive real-time monitoring of the health of the human body.
  • the present invention allows the fiber grating strain sensor to produce a central reflection wavelength drift in consideration of temperature.
  • a fiber grating temperature sensor is disposed under each fiber grating strain sensor for compensating for temperature versus fiber grating strain sensor. The shadow, improve the detection accuracy.
  • the FBG sensor itself is electrically passive, it does not cause any electrical hazard to the human body lying on the bed, and the safety performance is very prominent.
  • Figure 1 is a schematic block diagram of the present invention.
  • the bed of the present invention is similar in structure to the prior art bed and includes a bed panel and a bed support leg for supporting the bed panel.
  • the bed support legs here are placed under the floor or under the ground to support the entire bed. When the human body lies on the bed panel, its back rests on the bed panel.
  • the bed comprises a bed panel, four bed support legs for supporting the bed panel, wherein each of the bed support legs is provided with a fiber grating strain sensor, and all the fiber grating strain sensors pass through one fiber.
  • the optical fiber is connected with a photoelectric module and a data processing module; the photoelectric module has an LED light source, an optical coupler and a demodulation unit, and the light emitted by the LED light source is injected into the fiber grating strain sensor through the optical coupler to meet the reflection condition.
  • the light is reflected and then enters the demodulation unit through the optocoupler; the data processing module is located in a monitoring host, and the monitoring host is further connected with a comprehensive result display platform; the data in the data processing module is sequentially passed through The frequency shift calculation unit, the Gaussian denoising unit, the pattern recognition unit, the fiber grating strain sensor temperature compensation calculation unit, the heart rate calculation unit, the respiratory frequency calculation unit, the weight calculation unit, and the final output result to the comprehensive result display platform.
  • the frequency shift calculation unit compares the center wavelength of the reflected light of the fiber grating strain sensor and the reflected light of the fiber grating strain sensor by the temperature and the strain, and obtains the center wavelength of the reflected light. Offset; the Gaussian denoising unit removes the noise signal in the processed data; the pattern recognition unit distinguishes the heartbeat, respiration, and weight signals; the fiber grating strain sensor temperature compensation calculation unit reflects the temperature on the fiber grating strain sensor The offset of the optical center wavelength is removed, leaving only the effect of the strain; the heart rate calculation unit and the respiratory frequency calculation unit calculate the heart rate and the respiratory rate; the body weight calculation unit calculates the body weight.
  • the invention improves the bed by using photoelectric technology and sensor technology, and the specific improvement is that a fiber grating strain sensor is arranged on the support leg of the bed, and the fiber grating strain sensor passes An optical fiber is connected in series, and the above-mentioned optical fiber is led out from one end, and the extracted optical fiber is connected with a photoelectric module and a data processing module.
  • the fiber grating strain sensor can detect the amount of strain deformation generated when the human body lies on the bed, and convert the deformation amount and the change condition by photoelectric signal conversion to electrical signal processing, thereby obtaining the deformation according to the operation.
  • some physiological parameters of the human body are measured. These physiological parameters include respiratory frequency and heart rate in addition to body weight.
  • a fiber grating strain sensor is disposed on each support leg of the bed, and four fiber grating strain sensors are disposed on the four support legs.
  • Four such strain sensors are installed for the purpose of increasing sensitivity and detection accuracy.
  • Both the heartbeat and the breath produce a force of different magnitude and frequency on the back, which acts on the four strain sensors, causing them to produce axial strain, which deflects the center wavelength of the reflected light from the fiber grating strain sensor. shift.
  • the frequency shift of the center wavelength of the reflected light of the fiber grating strain sensor caused by the heartbeat and the breath is different, so the frequency of the frequency shift is different, so according to this law, the strain sensor can detect the heart rate and the breath of the human body.
  • Physiological parameters such as frequency.
  • the total weight of the human body will act on the highest point of the curved structure on the fiber grating strain sensor when compared with the bed, which will cause the fiber grating strain sensor to generate an axial strain.
  • the center wavelength of the reflected light of the fiber grating strain sensor is shifted, and the offset has a linear relationship with the body weight. The larger the offset, the heavier the weight, and vice versa.
  • each of the fiber grating sensors is connected by a plurality of fiber segments divided by one fiber.
  • the optoelectronic module, the monitoring host, and the integrated results display platform are connected by cables, and all hardware components are connected by fiber optics.
  • the photoelectric module has an LED light source, an optical coupler and a demodulation unit. The light emitted by the broadband light source is injected into the fiber grating sensor through the optical coupler, and the light satisfying the reflection condition is reflected, and then enters the demodulation unit through the optical coupler to demodulate the center wavelength of the reflected light of each fiber grating sensor. It is then converted into an electrical signal and transmitted to the monitoring host.
  • the monitoring host has a built-in data acquisition module and a data processing module.
  • the data acquisition module is used to collect data and A ⁇ D conversion.
  • the data processing module is a core part of the monitoring host, and includes six module units: a frequency shift calculation unit, a Gaussian denoising unit, a pattern recognition unit, a fiber grating strain sensor temperature compensation calculation unit, a heart rate calculation unit, a respiratory frequency calculation unit, Weight calculation unit.
  • the data processing module first sends the data of the reflected light from each of the fiber grating sensors of the photoelectric module to the frequency shift calculation unit, and the frequency shift calculation unit converts the center wavelength of the reflected light of the fiber grating sensor subjected to temperature and strain.
  • the center wavelength of the calibrated reflected light is made a difference, and the offset of the center wavelength of the reflected light is obtained.
  • the processed data is removed by a Gaussian denoising unit, such as some noise superimposed signals generated by a person moving on a bed.
  • the heartbeat, respiration, and weight signals are distinguished by the pattern recognition unit.
  • the offset of the center wavelength of the reflected light generated by the temperature on the fiber grating strain sensor is removed by the fiber grating strain sensor temperature compensation calculation unit, leaving only the effect of strain.
  • the heart rate, the respiratory rate, and the body weight are calculated through the heart rate calculation unit, the respiratory frequency calculation unit, and the weight calculation unit, respectively.
  • the heart rate refers to the number of times the heart beats per minute, which is an important diagnostic basis in the doctor's clinical diagnosis.
  • Normal adults usually have a heart rate of 60 to 100 beats per minute.
  • heart rate can vary with age and gender.
  • the ups and downs of the chest are one breath, that is, one breath and one breath.
  • the number of breaths per minute is called the respiratory rate, which is also an important diagnostic basis in the doctor's clinical diagnosis.
  • Normal adults have a respiratory rate of about 16 to 18 beats per minute.
  • Weight is closely related to some parameters such as gender, age and height.
  • the integrated result shows that the display interface is configured on the platform. Users can view the heart rate, respiratory rate, weight and time curve directly on the display interface. Heart rate and respiratory rate are measured every hour, and body weight is measured once a day. Users can also view the changes of the three physiological parameters in one day, one month and one year in the display interface, so that users can better understand the changes in physical health status over a long period of time.
  • the bed containing the fiber grating sensor of the invention is mainly used for monitoring physiological parameters such as heart rate, respiratory frequency and body weight of the human body, and can perform non-intrusive real-time monitoring on the health condition of the human body.
  • physiological parameters such as heart rate, respiratory frequency and body weight of the human body
  • the bed of the present invention does not affect the comfort of sleeping, and a host device can be connected to multiple beds at the same time, which greatly reduces the cost and is simple to maintain.
  • the bed of the present invention is well suited for use by companies and government agencies as a benefit to the unit's employees, creating real-time personal health records for employees.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Pulmonology (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention concerne un lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain. Le lit comprend un panneau de lit, des jambes de support de lit destinées à supporter le panneau de lit et une fibre de formation de réseau de capteurs disposés sur les jambes de support de lit. Tous les capteurs de la fibre de formation de réseau de capteurs sont connectés en série par une fibre optique, et la fibre de sortie est connectée à un module photoélectrique et à un module de traitement de données. Le lit est utilisé pour surveiller des paramètres physiologiques du corps humain tels que le rythme cardiaque, la fréquence respiratoire et le poids et permet de surveiller en temps réel l'état de santé du corps humain d'une manière sans interposition.
PCT/CN2013/080977 2013-08-07 2013-08-07 Lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain WO2015017998A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/080977 WO2015017998A1 (fr) 2013-08-07 2013-08-07 Lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/080977 WO2015017998A1 (fr) 2013-08-07 2013-08-07 Lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain

Publications (1)

Publication Number Publication Date
WO2015017998A1 true WO2015017998A1 (fr) 2015-02-12

Family

ID=52460502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/080977 WO2015017998A1 (fr) 2013-08-07 2013-08-07 Lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain

Country Status (1)

Country Link
WO (1) WO2015017998A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106943258A (zh) * 2017-05-11 2017-07-14 南京信息工程大学 一种多功能无线智能床垫及其人体生理信号测量方法
CN110108340A (zh) * 2019-06-04 2019-08-09 西北铁道电子股份有限公司 一种汽车动态称重装置
CN113624152A (zh) * 2021-06-22 2021-11-09 成都凯天电子股份有限公司 一种基于光栅的轮载信号检测方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005253608A (ja) * 2004-03-10 2005-09-22 Sumitomo Osaka Cement Co Ltd 状態解析装置
CN101282686A (zh) * 2005-10-11 2008-10-08 皇家飞利浦电子股份有限公司 用于监测床上的病人多个不同参数的***
US20090185772A1 (en) * 2008-01-22 2009-07-23 General Electric Company Fiberoptic patient health multi-parameter monitoring devices and system
CN102334984A (zh) * 2011-07-20 2012-02-01 上海波汇通信科技有限公司 一种可用于人体生理参数测量的智能椅
CN202191274U (zh) * 2011-07-20 2012-04-18 上海波汇通信科技有限公司 一种智能椅
JP5107519B2 (ja) * 2005-12-27 2012-12-26 住友大阪セメント株式会社 状態解析装置及びソフトウエアプログラム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005253608A (ja) * 2004-03-10 2005-09-22 Sumitomo Osaka Cement Co Ltd 状態解析装置
CN101282686A (zh) * 2005-10-11 2008-10-08 皇家飞利浦电子股份有限公司 用于监测床上的病人多个不同参数的***
JP5107519B2 (ja) * 2005-12-27 2012-12-26 住友大阪セメント株式会社 状態解析装置及びソフトウエアプログラム
US20090185772A1 (en) * 2008-01-22 2009-07-23 General Electric Company Fiberoptic patient health multi-parameter monitoring devices and system
CN102334984A (zh) * 2011-07-20 2012-02-01 上海波汇通信科技有限公司 一种可用于人体生理参数测量的智能椅
CN202191274U (zh) * 2011-07-20 2012-04-18 上海波汇通信科技有限公司 一种智能椅

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106943258A (zh) * 2017-05-11 2017-07-14 南京信息工程大学 一种多功能无线智能床垫及其人体生理信号测量方法
CN106943258B (zh) * 2017-05-11 2022-01-28 南京信息工程大学 一种多功能无线智能床垫及其人体生理信号测量方法
CN110108340A (zh) * 2019-06-04 2019-08-09 西北铁道电子股份有限公司 一种汽车动态称重装置
CN110108340B (zh) * 2019-06-04 2024-03-22 西北铁道电子股份有限公司 一种汽车动态称重装置
CN113624152A (zh) * 2021-06-22 2021-11-09 成都凯天电子股份有限公司 一种基于光栅的轮载信号检测方法

Similar Documents

Publication Publication Date Title
Massaroni et al. Smart textile for respiratory monitoring and thoraco‐abdominal motion pattern evaluation
Jia et al. A fiber Bragg grating sensor for radial artery pulse waveform measurement
Han et al. Low-cost plastic optical fiber sensor embedded in mattress for sleep performance monitoring
Chethana et al. Fiber bragg grating sensor based device for simultaneous measurement of respiratory and cardiac activities
CN107072565B (zh) 生命体征光纤传感器***及方法
Witt et al. Medical textiles with embedded fiber optic sensors for monitoring of respiratory movement
Dziuda et al. Fiber Bragg grating-based sensor for monitoring respiration and heart activity during magnetic resonance imaging examinations
Wang et al. Noninvasive monitoring of vital signs based on highly sensitive fiber optic mattress
Dziuda et al. Fiber Bragg grating strain sensor incorporated to monitor patient vital signs during MRI
CN102334984B (zh) 一种可用于人体生理参数测量的智能椅
CN202191274U (zh) 一种智能椅
Petrović et al. Non-invasive respiratory monitoring using long-period fiber grating sensors
Yu et al. Non-invasive smart health monitoring system based on optical fiber interferometers
WO2018072232A1 (fr) Dispositif tout optique sans contact pour la surveillance de signes vitaux
Kuang et al. Low-cost plastic optical fiber integrated with smartphone for human physiological monitoring
Chen et al. Non-invasive measurement of vital signs based on seven-core fiber interferometer
Miyauchi et al. Basic experiment of blood-pressure measurement which uses FBG sensors
WO2015017998A1 (fr) Lit à fibre de formation de réseau de capteurs de surveillance de paramètres physiologiques du corps humain
Chen et al. Portable fiber optic ballistocardiogram sensor for home use
CN104736054A (zh) 基于光学形状感测的肺体积描记法
Das et al. Wearable system for real-time remote monitoring of respiratory rate during covid-19 using fiber Bragg grating
Koyama et al. Vital sign measurement using FBG sensor for new wearable sensor development
Chen et al. Plastic optical fiber microbend sensor used as breathing sensor
Presti et al. Cardiorespiratory monitoring using a mechanical and an optical system
Zhang et al. Wearable cardiorespiratory sensor for real-time monitoring with smartphone integration

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13891125

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13891125

Country of ref document: EP

Kind code of ref document: A1