CN110025300A - Life physical sign monitoring device and monitoring method based on DFB optical-fiber laser sensing technology - Google Patents
Life physical sign monitoring device and monitoring method based on DFB optical-fiber laser sensing technology Download PDFInfo
- Publication number
- CN110025300A CN110025300A CN201910311842.1A CN201910311842A CN110025300A CN 110025300 A CN110025300 A CN 110025300A CN 201910311842 A CN201910311842 A CN 201910311842A CN 110025300 A CN110025300 A CN 110025300A
- Authority
- CN
- China
- Prior art keywords
- dfb
- module
- monitoring
- grating
- laser
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
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 for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- 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
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
- A61B5/1116—Determining posture transitions
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Pulmonology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to technical field of optical fiber sensing, and in particular to a kind of basic vital sign parameter device of on-line monitoring human body based on DFB optical-fiber laser sensing technology；The monitoring device includes DFB fiber laser sensor module, detection identification module, monitoring algorithm module and display notification module；The input terminal of the output end connecting detection identification module of DFB fiber laser sensor module detects the input terminal of the output end connection monitoring algorithm module of identification module, the input terminal of the output end connection display notification module of monitoring algorithm module；DFB fiber laser sensor module and display notification module are connect with monitoring object.It is simple and easy in its scheme, cost economy, in the monitoring basic vital sign parameter of human body (heart rate, breathing, body are dynamic) aspect, the vital signs device and method with extremely high sensitivity and stability.
Description
Technical field
The present invention relates to technical field of optical fiber sensing, and in particular to one kind is based on DFB(Distributed FeedBack)
The basic vital sign parameter device of the on-line monitoring human body of optical-fiber laser sensing technology.
Background technique
According to the World Health Organization's statistical data, it is qualified that cardiovascular and cerebrovascular disease, which occupies various causes of the death first places,
No.1 human health killer.Nowadays, the basic vital sign parameter of human body (heart rate, breathing, body are monitored using fibre optical sensor
Temperature, body are dynamic) technology rapidly develop, be of great significance for monitoring prevention and the diagnosis and treatment judgement of cardiovascular disease.
Fiber-optic grating sensor (such as L. Dziudaet al, " Monitoring Respiration and Cardiac
Activity Using Fiber Bragg Grating-Based Sensor," in IEEE Transactions on
Biomedical Engineering, vol. 59, no. 7, pp. 1934-1942, July 2012.), fiber grating passes
Sensor Techniques of wavelength detection is complicated, at high cost, measures the poor sensitivity that body temperature and body move；Optical fibre interferometric sensor (such as S.
prager and D. Zazula, "Heartbeat and Respiration Detection From Optical
Interferometric Signals by Using a Multimethod Approach," in IEEE Transactions on Biomedical Engineering, vol. 59, no. 10, pp. 2922-2929, Oct.
2012.), although optical interferometry high efficiency and high-precision, obtain that coherent source is sufficiently expensive, and signal processing technology is also very
It is complicated；The microbending optical fiber sensor (such as US20130109931A1, CN102573615B) occurred in recent years, system is simple, at
This is low, with the obvious advantage for detecting the basic vital sign of human body (heart rate, breathing, body are dynamic), but microbending optical fiber sensor sensitivity
Relative deficiency.
DFB optical fiber laser is small in size, structure is simple, is easy to wavelength-division multiplex as sensor, and detection technique is uncomplicated,
Detection sensitivity is very high.
In view of this, the present inventor furthers investigate the above problem, generated then by this case.
Summary of the invention
The purpose of the present invention is to provide a kind of life physical sign monitoring devices and prison based on DFB optical-fiber laser sensing technology
Survey method, simple and easy, cost economy in scheme, in the monitoring basic vital sign parameter of human body (heart rate, breathing, body are dynamic) side
Face, the vital signs device and method with extremely high sensitivity and stability.
The present invention to achieve the goals above, adopts the following technical scheme that
A kind of life physical sign monitoring device based on DFB optical-fiber laser sensing technology, the monitoring device include that DFB optical-fiber laser passes
Sensor module, detection identification module, monitoring algorithm module and display notification module；
The input terminal of the output end connecting detection identification module of DFB fiber laser sensor module, detects the output of identification module
The input terminal of end connection monitoring algorithm module, the input terminal of the output end connection display notification module of monitoring algorithm module；
DFB fiber laser sensor module and display notification module are connect with monitoring object.
Further, the DFB fiber laser sensor module mainly include three parts composition, respectively pump light source,
WDM coupler and DFB grating；
WDM coupler, positive input connect pump light source, and reverse input end is connected to DFB grating；
Pump light source is made of semiconductor laser, generates pumping laser；
Pumping laser is transmitted to WDM coupler by single mode optical fiber, and pumping laser is transmitted to DFB grating by WDM coupler.
Further, the grating with phase shift is carved on DFB grating, and the DFB grating is doped with rare earth gain media Er
Ion.
Further, pumping laser is the pumping laser of 980nm.
A kind of monitoring method of the life physical sign monitoring device based on DFB optical-fiber laser sensing technology:
DFB fiber laser sensor module by the basic vital sign parameter signals for acquiring monitoring object be transferred to detection identification module into
Row bio-identification completes the identification and monitoring demand of monitoring object；
Monitoring algorithm module automatically analyzes signal, judges monitoring object health status；By the information that handles and diagnose by showing
Notification module real-time exhibition makes corresponding prompt notice to user terminal；
Pumping laser is transmitted to WDM coupler by single mode optical fiber, and pumping laser is transmitted to DFB grating by WDM coupler；
Pump light source is for generating pumping laser；
WDM coupler, positive input connect pump light source, and reverse input end is connected to DFB grating；
Pumping laser is transmitted to DFB grating by WDM coupler, and the selected signal laser of DFB grating, which reflects, to be transmitted, WDM coupler,
And it exports through WDM coupler to detection identification module；
Transmission medium of the single mode optical fiber as light；
Identification module is detected, which mainly includes photoelectric detector function, corresponds to the ballistocardiography signal of generation to be given birth to
Object identification, thus identifies different ID identity；It does not share a common fate, heartbeat and body are dynamic that DFB grating is caused to generate different wave length shifts
With different laser intensity signals；It detects identification module and different laser intensity signals is become digital electric signal；
Collected ballistocardiography signal is carried out pattern-recognition by monitoring algorithm module, the module, judges automatically object generation
The feature of vital sign parameter signals is realized and prevents the monitoring of the basic vital sign parameter of human body and diagnose to include identifying different ID
Identity；
Show notification module, which provides the basic vital sign data of Real time dynamic display human body, and shows diagnositc decision
Information and alarm signal.
Further, the grating with phase shift is carved on DFB grating, and the DFB grating is doped with rare earth gain media Er
Ion；
It is 1550nm that DFB grating, which will select the optical maser wavelength after being excited by gain media, and is by selected optical maser wavelength
1550nm reflexes to WDM coupler, then exports through WDM coupler transfer to single mode optical fiber；
The variation of external vibration and vibration can change the refractive index and grating length of DFB grating, and then the laser that DFB grating is selected
Wavelength is that wave length shift and laser intensity variation occur for 1550nm；
Therefore, the signal laser that DFB grating is generated by external vibration and temperature change detects at single mode optical fiber.
Further, the basic vital sign parameter signals are that heart rate, breathing or body are dynamic.
Beneficial effects of the present invention:
After adopting the above technical scheme, vital signs device of the invention can be dynamic etc. living with long term monitoring heart rate, breathing, body
Dynamic signal.Since DFB fiber laser sensor has the Bragg reflector structure with phase shift, different microvibration variations is all
Different output wavelengths can be brought to drift about and output light intensity variation.Measured is in different postures, and (such as sitting is lain on one's side, just
Face upward) generate different vibration signal influence DFB optical fiber laser output lights.According to wave length shift variation and intensity variation come really
The changes in heart rate, respiratory variations and body for determining human body are dynamic.
DFB fiber laser sensor improves the sensitivity of monitoring.Detection identification module identifies different monitoring objects,
Improve the specific aim and reliability of monitoring.Real-time display module improves the real-time of medical monitoring.In addition it merits attention
It is the DFB fiber laser sensor cost economy of apparatus of the present invention, stability and high efficiency, compact, whole light channel structure is not answered
It is miscellaneous, it is easy to make.
Detailed description of the invention
The whole monitoring apparatus system composition block diagram of Fig. 1 embodiment of the present invention；
The structural schematic diagram of the DFB fiber laser sensor of Fig. 2 embodiment of the present invention.
The monitoring device of Fig. 3 embodiment of the present invention implements monitoring exemplary diagram；
The flow chart of the monitoring method of Fig. 4 embodiment of the present invention.
Specific embodiment
It elaborates with reference to the accompanying drawing to the present invention.
Embodiment one
Life physical sign monitoring device embodiment based on DFB optical-fiber laser sensing technology of the invention, Fig. 1 give of the invention real
Apply a kind of structural block diagram based on DFB optical-fiber laser sensing technology monitoring device provided by example.As seen from Figure 1, the DFB optical fiber
Laser sensing monitoring device includes DFB fiber laser sensor module 101, detection identification module 102, monitoring algorithm module 103
With display notification module 104.
The input terminal of the output end connecting detection identification module 102 of DFB fiber laser sensor module 101, detection identification
The output end connection display of the input terminal of the output end connection monitoring algorithm module 103 of module 102, monitoring algorithm module 103 is logical
Know the input terminal of module 104；
DFB fiber laser sensor module 101 and display notification module 104 are connect with monitoring object 105.DFB optical-fiber laser passes
Sensor module 101 will acquire the basic vital sign parameter signals (heart rate, breathing, body are dynamic) of monitoring object, be transmitted further to detection identification
Module 102 carries out bio-identification, completes the identification and monitoring demand of monitoring object.Monitoring algorithm module 103 includes intelligence
Algorithm can automatically analyze signal, judge monitoring object health status.By the information that handles and diagnose by display notification module
104 real-time exhibitions make corresponding prompt notice to user terminal.
Referring now to Fig. 2, Fig. 2 gives the structural schematic diagram of DFB fiber laser sensor module 101.DFB optical-fiber laser
Sensor module 101 is mainly made of three parts, respectively pump light source 201, WDM coupler 202 and DFB grating 203.Pumping
Light source 201 is made of semiconductor laser, generates pumping laser 980nm.Pumping laser is transmitted to WDM coupling by single mode optical fiber
Pumping laser is transmitted to DFB grating 203 by device 202, WDM coupler 202.The grating with phase shift is carved on DFB grating 203, and
And the DFB grating 203 is doped with rare earth gain media Er ion.DFB grating will select the laser wave after being excited by gain media
Long λ 1550nm, and selected laser wavelength lambda 1550nm is reflexed into WDM coupler 202, then be transmitted to through WDM coupler 202
Single mode optical fiber 204 exports.The variation of external vibration 205 and vibration 206 can change the refractive index and grating length of DFB grating 203,
And then laser wavelength lambda 1550nm generation wave length shift and laser intensity variation that DFB grating 203 is selected.Therefore, DFB grating 203
Vibrated 205 and temperature 206 variation generate signal laser can be detected at single mode optical fiber 204.
Embodiment two
The monitoring method embodiment of life physical sign monitoring device based on DFB optical-fiber laser sensing technology of the invention；
The basic vital sign parameter signals for acquiring monitoring object 301 are transferred to detection identification by DFB fiber laser sensor module 101
Module 102 carries out bio-identification, completes the identification and monitoring demand of monitoring object 301；
Monitoring algorithm module 103 automatically analyzes signal, judges 301 health status of monitoring object；By the information for handling and diagnosing
By 104 real-time exhibition of display notification module to user terminal, and make corresponding prompt notice；
Pumping laser is transmitted to WDM coupler 202 by single mode optical fiber 204, and pumping laser is transmitted to DFB by WDM coupler 202
Grating 203；
Pump light source 201 is for generating pumping laser；
WDM coupler 202, positive input connect pump light source 201, and reverse input end is connected to DFB grating 203；
Pumping laser is transmitted to DFB grating 203 by WDM coupler 202, and the selected signal laser of DFB grating 203 reflects transmitting,
WDM coupler 202, and through the output of WDM coupler 202 to detection identification module 102；
Transmission medium of the single mode optical fiber 204 as light；
Identification module 102 is detected, which mainly includes photoelectric detector function, corresponds to the ballistocardiography signal of generation to carry out
Thus bio-identification identifies different ID identity；It does not share a common fate, heartbeat and body are dynamic that DFB grating 203 is caused to generate different wavelength
Drift and different laser intensity signals；It detects identification module 102 and different laser intensity signals is become digital electric signal；
Collected ballistocardiography signal is carried out pattern-recognition by monitoring algorithm module 103, the module, judges automatically object generation
Vital sign parameter signals feature, realize and the monitoring of the basic vital sign parameter of human body prevented and diagnosis includes that identification is different
ID identity；
Show notification module 104, which provides the basic vital sign data of Real time dynamic display human body, and shows that diagnosis is sentenced
Determine information and alarm signal.
Further, the grating with phase shift is carved on DFB grating 203, and the DFB grating 203 is doped with rare earth gain
Medium Er ion；
It is 1550nm that DFB grating 203, which will select the optical maser wavelength after being excited by gain media, and is by selected optical maser wavelength
1550nm reflexes to WDM coupler 202, then is transmitted to single mode optical fiber 204 through WDM coupler 202 and exports；
The variation of external vibration 205 and vibration 206 can change the refractive index and grating length of DFB grating 203, and then DFB grating
203 selected optical maser wavelengths are that wave length shift and laser intensity variation occur for 1550nm；
Therefore, the signal laser that DFB grating 203 is generated by external vibration 205 and the variation of temperature 206 is examined at single mode optical fiber 204
It surveys.
The basic vital sign parameter signals are that heart rate, breathing or body are dynamic.
Referring to Fig. 3, signal laser is output to detection identification module and carries out light detection processing by single mode optical fiber 204.
Since different monitoring objects 301 has different basic vital signs, these correspond to different signal lasers.
According to the variation of signal laser, guards algoritic module 103 and detection identification module 102 completes identification and basic vital sign
The function of monitoring, diagnosing.
It is the monitoring method flow chart of monitoring device of the present invention referring to Fig. 4.Firstly, DFB fiber laser sensor acquisition prison
The basic vital sign parameter signals (heart rate, breathing, body are dynamic) of object are protected, in DFB fiber laser sensor module, DFB optical fiber swashs
The core of optical sensor is fiber grating.Its basic principle are as follows: the variation of tested human body vital sign parameter signals causes the week of grating
When the variation of at least one of effective refractive index of phase and grating region amount, the reflection wavelength of fiber grating is moved, and passes through
The mobile size of wavelength is analyzed, it can the original letter to vital sign that is sensed of the physical quantitys such as heartbeat, breathing to measured
Number.
Then bio-identification and monitoring demand point are carried out to collected vital sign original signal by detection identification module
Analysis, obtains heartbeat, the breath signal of measured.The diagnosis for carrying out health and fitness information by monitoring algoritic module again, judges measured's
Whether vital sign is normal, and provides conclusion.Finally corresponding notice is made by display notification module.
Since the variation of atomic small vibration can also cause the offset of DFB fiber laser sensor output wavelength and output intensity
Variation.So advantage of the monitoring device of the present invention in terms of monitoring body dynamic accuracy and high efficiency is self-evident.
Description and application of the invention herein are illustrative, not limits the scope of the invention to above-described embodiment
In.The modification and improvement of embodiments disclosed herein are possible, embodiments for those of ordinary skill in the art
The equivalent various parts of replacement be well known.It without departing from the spirit or essential characteristics of the invention, can be right
Embodiments disclosed herein carries out other deformations and changes.
Claims (7)
1. a kind of life physical sign monitoring device based on DFB optical-fiber laser sensing technology, it is characterised in that: the monitoring device includes
DFB fiber laser sensor module (101), detection identification module (102), monitoring algorithm module (103) and display notification module
(104)；
The input terminal of the output end connecting detection identification module (102) of DFB fiber laser sensor module (101), detection identification
The input terminal of output end connection monitoring algorithm module (103) of module (102), the output end connection of monitoring algorithm module (103)
Show the input terminal of notification module (104)；
DFB fiber laser sensor module (101) and display notification module (104) are connect with monitoring object (105).
2. the life physical sign monitoring device according to claim 1 based on DFB optical-fiber laser sensing technology, feature exist
In:
The DFB fiber laser sensor module (101) mainly includes that three parts form, respectively pump light source (201), WDM
Coupler (202) and DFB grating (203)；
WDM coupler (202), positive input connect pump light source (201), and reverse input end is connected to DFB grating
(203)；
Pump light source (201) is made of semiconductor laser, generates pumping laser；
Pumping laser is transmitted to WDM coupler (202) by single mode optical fiber (204), and WDM coupler (202) passes pumping laser
Transport to DFB grating (203).
3. the life physical sign monitoring device according to claim 2 based on DFB optical-fiber laser sensing technology, feature exist
In:
Be carved with the grating with phase shift on DFB grating (203), and the DFB grating (203) be doped with rare earth gain media Er from
Son.
4. the life physical sign monitoring device according to claim 2 based on DFB optical-fiber laser sensing technology, feature exist
In: pumping laser is the pumping laser of 980nm.
5. the life physical sign monitoring device according to any one of claims 1-4 based on DFB optical-fiber laser sensing technology
Monitoring method, it is characterised in that:
The basic vital sign parameter signals for acquiring monitoring object (301) are transferred to detection by DFB fiber laser sensor module (101)
Identification module (102) carries out bio-identification, completes the identification and monitoring demand of monitoring object (301)；
Monitoring algorithm module (103) automatically analyzes signal, judges monitoring object (301) health status；By what is handled and diagnose
Information, to user terminal, and makes corresponding prompt notice by display notification module (104) real-time exhibition；
Pumping laser is transmitted to WDM coupler (202) by single mode optical fiber (204), and WDM coupler (202) passes pumping laser
Transport to DFB grating (203)；
Pump light source (201) is for generating pumping laser；
WDM coupler (202), positive input connect pump light source (201), and reverse input end is connected to DFB grating
(203)；
Pumping laser is transmitted to DFB grating (203) by WDM coupler (202), the selected signal laser reflection of DFB grating (203)
Transmitting, WDM coupler (202), and through WDM coupler (202) output to detection identification module (102)；
Transmission medium of the single mode optical fiber (204) as light；
Detect identification module (102), which mainly includes photoelectric detector function, the corresponding ballistocardiography signal generated come into
Thus row bio-identification identifies different ID identity；It does not share a common fate, dynamic to cause DFB grating (203) to generate different for heartbeat and body
Wave length shift and different laser intensity signals；Different laser intensity signals is become digital electricity by detection identification module (102)
Signal；
Collected ballistocardiography signal is carried out pattern-recognition by monitoring algorithm module (103), the module, judges automatically object production
The feature of raw vital sign parameter signals realizes that the monitoring to the basic vital sign parameter of human body prevents and diagnosis includes that identification is different
ID identity；
It shows notification module (104), which provides the basic vital sign data of Real time dynamic display human body, and shows diagnosis
Determine information and alarm signal.
6. the monitoring method of the life physical sign monitoring device according to claim 5 based on DFB optical-fiber laser sensing technology,
It is characterized by:
Be carved with the grating with phase shift on DFB grating (203), and the DFB grating (203) be doped with rare earth gain media Er from
Son；
It is 1550nm that DFB grating (203), which will select the optical maser wavelength after being excited by gain media, and is by selected optical maser wavelength
1550nm is reflexed to WDM coupler (202), then is transmitted to single mode optical fiber (204) output through WDM coupler (202)；
External vibration (205) and the variation for vibrating (206) can change the refractive index and grating length of DFB grating (203), in turn
The selected optical maser wavelength of DFB grating (203) is that wave length shift and laser intensity variation occur for 1550nm；
Therefore, DFB grating (203) is by external vibration (205) and the signal laser of temperature (206) variation generation in single mode optical fiber
(204) it is detected at.
7. the monitoring method of the life physical sign monitoring device according to claim 5 based on DFB optical-fiber laser sensing technology,
It is characterized by: the basic vital sign parameter signals are that heart rate, breathing or body are dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910311842.1A CN110025300B (en) | 2019-04-18 | 2019-04-18 | Vital sign monitoring device and method based on DFB fiber laser sensing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910311842.1A CN110025300B (en) | 2019-04-18 | 2019-04-18 | Vital sign monitoring device and method based on DFB fiber laser sensing technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110025300A true CN110025300A (en) | 2019-07-19 |
| CN110025300B CN110025300B (en) | 2022-02-25 |
Family
ID=67238897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910311842.1A Active CN110025300B (en) | 2019-04-18 | 2019-04-18 | Vital sign monitoring device and method based on DFB fiber laser sensing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110025300B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150378A (en) * | 2020-01-19 | 2020-05-15 | 武汉理工大学 | Non-invasive distributed optical fiber monitoring system and method for multiple physical signs of human sleep |
| CN115423667A (en) * | 2022-08-30 | 2022-12-02 | 和旭科技南京有限公司 | Smart Interrogation System Based on Internet of Things, Artificial Intelligence and Big Data Analysis |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888834A (en) * | 2006-08-14 | 2007-01-03 | 张碧华 | Optical fiber grating sensor wave length measuring system |
| WO2012075474A2 (en) * | 2010-12-02 | 2012-06-07 | Ofs Fitel, Llc | Dfb fiber laser bend sensor and optical heterodyne microphone |
| US20130200263A1 (en) * | 2008-05-19 | 2013-08-08 | Emcore Corporation | Terahertz frequency domain spectrometer with discrete coarse and fine tuning |
| CN104198433A (en) * | 2014-09-14 | 2014-12-10 | 中国科学院合肥物质科学研究院 | Device and method for detecting concentration of human respiration marking gas on line by laser absorption spectroscopy technology |
| US20170045349A1 (en) * | 2006-06-05 | 2017-02-16 | Board Of Regents, The University Of Texas System | Polarization-sensitive spectral interferometry |
| CN106482863A (en) * | 2016-10-12 | 2017-03-08 | 山东省科学院激光研究所 | Temperature sensor and temperature-sensing system based on active phase-shifted grating |
| CN108120525A (en) * | 2017-12-28 | 2018-06-05 | 上海交通大学 | Optical fiber grating temperature/strain sensing system and its demodulation method |
| CN108267160A (en) * | 2017-12-28 | 2018-07-10 | 博立信（北京）科技有限公司 | Time-multiplexed fiber Bragg grating sensor |
| CN108652635A (en) * | 2018-03-27 | 2018-10-16 | 余海波 | medical monitoring device, method and system |
-
2019
- 2019-04-18 CN CN201910311842.1A patent/CN110025300B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170045349A1 (en) * | 2006-06-05 | 2017-02-16 | Board Of Regents, The University Of Texas System | Polarization-sensitive spectral interferometry |
| CN1888834A (en) * | 2006-08-14 | 2007-01-03 | 张碧华 | Optical fiber grating sensor wave length measuring system |
| US20130200263A1 (en) * | 2008-05-19 | 2013-08-08 | Emcore Corporation | Terahertz frequency domain spectrometer with discrete coarse and fine tuning |
| WO2012075474A2 (en) * | 2010-12-02 | 2012-06-07 | Ofs Fitel, Llc | Dfb fiber laser bend sensor and optical heterodyne microphone |
| CN104198433A (en) * | 2014-09-14 | 2014-12-10 | 中国科学院合肥物质科学研究院 | Device and method for detecting concentration of human respiration marking gas on line by laser absorption spectroscopy technology |
| CN106482863A (en) * | 2016-10-12 | 2017-03-08 | 山东省科学院激光研究所 | Temperature sensor and temperature-sensing system based on active phase-shifted grating |
| CN108120525A (en) * | 2017-12-28 | 2018-06-05 | 上海交通大学 | Optical fiber grating temperature/strain sensing system and its demodulation method |
| CN108267160A (en) * | 2017-12-28 | 2018-07-10 | 博立信（北京）科技有限公司 | Time-multiplexed fiber Bragg grating sensor |
| CN108652635A (en) * | 2018-03-27 | 2018-10-16 | 余海波 | medical monitoring device, method and system |
Non-Patent Citations (1)
| Title |
|---|
| 霍佃恒 等: "基于窄频分布反馈激光器和光纤光栅的加速度传感器", 《激光技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150378A (en) * | 2020-01-19 | 2020-05-15 | 武汉理工大学 | Non-invasive distributed optical fiber monitoring system and method for multiple physical signs of human sleep |
| CN111150378B (en) * | 2020-01-19 | 2021-07-06 | 武汉理工大学 | A non-invasive distributed optical fiber monitoring system and method for human sleep multi-signs |
| CN115423667A (en) * | 2022-08-30 | 2022-12-02 | 和旭科技南京有限公司 | Smart Interrogation System Based on Internet of Things, Artificial Intelligence and Big Data Analysis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110025300B (en) | 2022-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102920464B (en) | Instrument for measuring haemoglobin concentration and blood oxygen saturation and measuring method | |
| US20120203117A1 (en) | Vital signs detecting device and a method for detecting vital signs | |
| CN110558956B (en) | Vital sign monitoring device | |
| US10145726B2 (en) | Fiber optic acoustic wave detection system | |
| CN111413014B (en) | Optical fiber pressure detection system | |
| JP2019510544A5 (en) | ||
| WO2018072232A1 (en) | All-optical non-contact device for monitoring vital signs | |
| WO2019015354A1 (en) | New optical fibre interferometric device and method for monitoring vital signs | |
| Nedoma et al. | Validation of a novel fiber-optic sensor system for monitoring cardiorespiratory activities during mri examinations | |
| CN110025300A (en) | Life physical sign monitoring device and monitoring method based on DFB optical-fiber laser sensing technology | |
| Yu et al. | Non-invasive smart health monitoring system based on optical fiber interferometers | |
| Nedoma et al. | Comparison of BCG, PCG and ECG signals in application of heart rate monitoring of the human body | |
| US20220330894A1 (en) | Contactless intelligent monitor and its detection method | |
| CN102657521B (en) | Full optical fiber heart rate measuring equipment | |
| Nedoma et al. | Non-invasive fiber-optic biomedical sensor for basic vital sign monitoring | |
| CN114587302A (en) | Vital sign monitoring device and method | |
| CN108627233A (en) | A kind of fiber-optic vibration detection system | |
| CN118078240B (en) | Optical fiber Michelson interference type heart rate sensor and heart rate monitoring system | |
| CN217611079U (en) | BCG detection device based on optical fiber annular cavity | |
| US20040234187A1 (en) | Method of and apparatus for measuring nonstationary oscillatory motion | |
| CN216622169U (en) | Skin tissue spectrum detection device based on fluorescence and Raman fusion technology | |
| JP4625593B2 (en) | Optical fiber multipoint physical quantity measurement system | |
| Chen et al. | In-bed fibre optic breathing and movement sensor for non-intrusive monitoring | |
| Hsu et al. | Non-contact PPG measurement system incorporating image analyzed photoplethysmogram signals and deep learning algorithms | |
| Katayama et al. | Improvement of blood pressure prediction using artificial neural network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |