CN107233097A - A kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and method - Google Patents
A kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and method Download PDFInfo
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- CN107233097A CN107233097A CN201710594345.8A CN201710594345A CN107233097A CN 107233097 A CN107233097 A CN 107233097A CN 201710594345 A CN201710594345 A CN 201710594345A CN 107233097 A CN107233097 A CN 107233097A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 52
- 238000012806 monitoring device Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 66
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 230000005622 photoelectricity Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 206010011409 Cross infection Diseases 0.000 abstract description 4
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000036651 mood Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
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- 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
- A61B5/024—Measuring pulse rate or heart rate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Measuring devices for evaluating the respiratory organs
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- Investigating Or Analysing Materials By Optical Means (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and method, including：Light source, 2*2 fiber couplers, sensor fibre, photodetector and vital sign analysis module, it is connected between the output end of the light source and the input of 2*2 fiber couplers using optical fiber, the output end of the 2*2 fiber couplers is connected with the input of sensor fibre, the input of the photodetector is connected with the input or output end of 2*2 fiber couplers, and the output end of the photodetector is connected with the input of vital sign analysis module.Through the above way, novel optical fiber Gan Wataru types life physical sign monitoring devices of the present invention and method, the monitoring problem under strong electromagnetic interference environment can effectively be overcome, the vital sign monitoring of human body is carried out using full optical fiber interference structure, non-intruding monitor is fully achieved, possesses electromagnetism interference, without cross-infection and the advantages of be multiplexed infinitely.
Description
Technical field
The present invention relates to vital sign monitoring technical field, more particularly to a kind of novel optical fiber Gan Wataru types vital sign prison
Survey apparatus and method.
Background technology
Most of vital signs monitors in the market are all intrusive mood Wearable in other words, these detections
Scheme is likely to result in certain influence for the normal rest of people.In addition, as traditional cardiac monitoring is in order to avoid cross-infection, base
This is all to use disposable electrode, it is difficult to recycled.
Vital sign monitoring in particular circumstances, such as magnetic nuclear resonance environment, traditional electronics Hygienic monitoring on hands of childhood is for forceful electric power
Magnetic disturbance may feel simply helpless.
In summary, traditional vital sign monitoring product has following deficiency：
First：Intrusive mood or Wearable monitoring；
Second：The monitoring under strong electromagnetic interference environment can not be tackled；
3rd：To avoid cross-infection, cost is used for multiple times higher, it is necessary to improve.
The content of the invention
The present invention solves the technical problem of provide a kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and side
Method, lifts ease of use, reduces cost, adapts to the monitoring under strong electromagnetic interference environment.
In order to solve the above technical problems, one aspect of the present invention is：A kind of novel optical fiber Gan Wataru types are provided
Life physical sign monitoring device, including：Light source, 2*2 fiber couplers, sensor fibre, photodetector and vital sign analysis mould
Block, is connected between the output end and the input of 2*2 fiber couplers of the light source using optical fiber, the 2*2 fiber couplings
The output end of device is connected with the input of sensor fibre, and the input of the photodetector is defeated with 2*2 fiber couplers
Enter end or output end is connected, the output end of the photodetector is connected with the input of vital sign analysis module.
In a preferred embodiment of the present invention, the output end of the light source and the input port 11 of 2*2 fiber couplers
Between be connected using optical fiber, the sensor fibre be connected to the output ports 21 of 2*2 fiber couplers and output port 22 it
Between, the input of the photodetector is connected with the input port 12 of 2*2 fiber couplers.
In a preferred embodiment of the present invention, the output end of the light source and the input port 12 of 2*2 fiber couplers
Between be connected using optical fiber, the sensor fibre be connected to the output ports 21 of 2*2 fiber couplers and input port 11 it
Between, the input of the photodetector is connected with the output port 22 of 2*2 fiber couplers.
In a preferred embodiment of the present invention, the output end of the light source and the input port 11 of 2*2 fiber couplers
Between be connected using optical fiber, one end of the sensor fibre is connected to the output port 21 of 2*2 fiber couplers, the photoelectricity
The input of detector is connected with the input port 12 of 2*2 fiber couplers, the output port 22 of the 2*2 fiber couplers
It is connected with reference optical fiber.
In a preferred embodiment of the present invention, the light source is the monochromatic or quasi- mono-colour laser that centre wavelength is not limited
Or wideband laser, including but not limited to Distributed Feedback Laser, VCSEL lasers and LED.
In a preferred embodiment of the present invention, the type and length of the sensor fibre are not limited.
In a preferred embodiment of the present invention, the life that the novel optical fiber Gan Wataru type life physical sign monitoring devices are monitored
Life sign includes but is not limited to breathing and heart rate.
In order to solve the above technical problems, another technical solution used in the present invention is：There is provided a kind of based on novel optical fiber
The vital sign monitoring method that Gan Wataru types life physical sign monitoring device is carried out, comprises the following steps：
Using fiber interference structure, the perturbation of body kinematics initiation is captured, causes optical path difference to change, ultimately results in output
Light intensity changes, it is assumed that LASER Light Source intensity is, splitting ratio is α, and the light intensity of two-way interference light is respectivelyWith, photoelectricity spy
Surveying the light intensity that receives of device is, the phase difference of two-way interference light is, it is variations per hour, does not consider fibre loss, then：
When there is no external disturbance,Equal to 0；
When sensor fibre has monitored disturbance, minor variations occur for the length of optical fiber, simultaneously because elasto-optical effect, causes
The effective refractive index of optical fiber changes, therefore0 is not equal to, and it is consistent with external vibration change；
According to the light intensity received, extracted further according to vital sign and parser, by signal transacting and demodulation, obtain life
Sign.
The beneficial effects of the invention are as follows：A kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and side that the present invention is pointed out
Method, can effectively overcome the monitoring problem under strong electromagnetic interference environment, and the life entity of human body is carried out using full optical fiber interference structure
Monitoring is levied, non-intruding monitor vital sign parameter signals are fully achieved, possesses electromagnetism interference, without cross-infection and unlimited
It is the advantages of secondary multiplexing, easy-to-use, reduce use cost.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, it can also obtain other according to these accompanying drawings
Accompanying drawing, wherein：
Fig. 1 is the structural representation of a kind of novel optical fiber Gan Wataru types life physical sign monitoring devices of the invention and the preferred embodiment of method one
Figure；
Fig. 2 is that the structure of a kind of novel optical fiber Gan Wataru types life physical sign monitoring devices of the invention and another preferred embodiment of method is shown
It is intended to；
Fig. 3 is that the structure of a kind of novel optical fiber Gan Wataru types life physical sign monitoring devices of the invention and method another embodiment is shown
It is intended to；
Fig. 4 is to be obtained using a kind of novel optical fiber Gan Wataru types life physical sign monitoring devices of the invention and method when person under test tests
Primary signal figure.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
Fig. 1 ~ Fig. 4 is referred to, the embodiment of the present invention includes：
A kind of novel optical fiber Gan Wataru type life physical sign monitoring devices, including 3 kinds of schemes：
The first scheme：As shown in figure 1, being used between the output end of the light source and the input port 11 of 2*2 fiber couplers
Optical fiber is connected, any type optical fiber can, wide material sources, cost is low, and the splitting ratio of 2*2 fiber couplers is not limited,
The sensor fibre is connected between the output port 21 of 2*2 fiber couplers and output port 22, the photodetector
Input is connected with the input port 12 of 2*2 fiber couplers, and output end and the vital sign of the photodetector are analyzed
The input of module is connected, based on optical fiber Sagnac interference；
Second scheme：As shown in Fig. 2 being used between the output end of the light source and the input port 12 of 2*2 fiber couplers
Optical fiber is connected, and the sensor fibre is connected between the output port 21 of 2*2 fiber couplers and input port 11, the light
The input of electric explorer is connected with the output port 22 of 2*2 fiber couplers, the output end of the photodetector and life
The input of life sign analysis module is connected, based on optical fiber Mach-Zehnder interference；
The third scheme：As shown in figure 3, being used between the output end of the light source and the input port 11 of 2*2 fiber couplers
Optical fiber is connected, and one end of the sensor fibre is connected to the output port 21 of 2*2 fiber couplers, the photodetector
Input is connected with the input port 12 of 2*2 fiber couplers, and the connection of output port 22 of the 2*2 fiber couplers is set
There is reference optical fiber, the output end of the photodetector is connected with the input of vital sign analysis module, is based on
Michelson interferes.
The present apparatus can sensitively detect small vibration produced by human body respiration and heartbeat, be analyzed by vital sign
Module is extracted and obtains a series of vital sign informations.Using highly sensitive fiber interference structure, sharp captures heartbeat, exhales
Inhale, the perturbation that body kinematics triggers such as body is dynamic, cause optical path difference to change, ultimately result in output intensity and change.
Assuming that LASER Light Source intensity is, splitting ratio is α, and the light intensity of two-way interference light is respectivelyWith, photodetector
The light intensity received is, the phase difference of two-way interference light is, it is variations per hour, does not consider fibre loss, then：
Either Sagnac structures of scheme one, the Mach-Zehnder structures of scheme two or the Michelson of scheme three are dry
Relate to, when there is no external disturbance,Equal to 0；When fiber-optic monitoring is to when having disturbance, the length generation of optical fiber is small
Change, simultaneously because elasto-optical effect, causes the effective refractive index of optical fiber to change, thereforeBe not equal to 0, and with outside
Vibration change is consistent.Therefore, according to the light intensity received, extracted further according to vital sign and parser, by signal transacting
With demodulation, it is possible to obtain vital sign parameter signals.
The light source is the monochromatic or quasi- mono-colour laser or wideband laser that centre wavelength is not limited, including but is not limited
In Distributed Feedback Laser, VCSEL lasers and LED, selection is flexible.The type and length of the sensor fibre are not limited, according to prison
The target of survey is constructed, and is constructed more flexible.
Fig. 4 it is exemplary illustrate the primary signal figure that apparatus of the present invention are obtained when person under test tests, when abscissa is
Between, unit is the second, and ordinate is amplitude.
In summary, the present invention is pointed out a kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and method, structure are tight
Gather, without wearing, monitoring is convenient, and good in anti-interference performance, the cost of operation and maintenance is low.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (8)
1. a kind of novel optical fiber Gan Wataru type life physical sign monitoring devices, it is characterised in that including：Light source, 2*2 fiber couplers,
Sensor fibre, photodetector and vital sign analysis module, the output end of the light source and the input of 2*2 fiber couplers
Between be connected using optical fiber, the output end of the 2*2 fiber couplers is connected with the input of sensor fibre, the photoelectricity
The input of detector is connected with the input or output end of 2*2 fiber couplers, the output end of the photodetector
It is connected with the input of vital sign analysis module.
2. novel optical fiber Gan Wataru type life physical sign monitoring devices according to claim 1, it is characterised in that the light source
It is connected between output end and the input port 11 of 2*2 fiber couplers using optical fiber, the sensor fibre is connected to 2*2 optical fiber
Between the output port 21 and output port 22 of coupler, the input of the photodetector is defeated with 2*2 fiber couplers
Inbound port 12 is connected.
3. novel optical fiber Gan Wataru type life physical sign monitoring devices according to claim 1, it is characterised in that the light source
It is connected between output end and the input port 12 of 2*2 fiber couplers using optical fiber, the sensor fibre is connected to 2*2 optical fiber
Between the output port 21 and input port 11 of coupler, the input of the photodetector is defeated with 2*2 fiber couplers
Exit port 22 is connected.
4. novel optical fiber Gan Wataru type life physical sign monitoring devices according to claim 1, it is characterised in that the light source
It is connected between output end and the input port 11 of 2*2 fiber couplers using optical fiber, one end of the sensor fibre is connected to
The output port 21 of 2*2 fiber couplers, the input of the photodetector and the phase of input port 12 of 2*2 fiber couplers
Connection, the output port 22 of the 2*2 fiber couplers is connected with reference optical fiber.
5. novel optical fiber Gan Wataru type life physical sign monitoring devices according to claim 1, it is characterised in that the light source is
Monochromatic or quasi- mono-colour laser or wideband laser that centre wavelength is not limited, including but not limited to Distributed Feedback Laser, VCSEL
Laser and LED.
6. novel optical fiber Gan Wataru type life physical sign monitoring devices according to claim 1, it is characterised in that the sense light
Fine type and length is not limited.
7. novel optical fiber Gan Wataru type life physical sign monitoring devices according to claim 1, it is characterised in that the new light
The vital sign parameter signals that Xian Gan Wataru type life physical sign monitoring devices are monitored include but is not limited to breathing and heart rate.
8. the life entity that one kind is carried out based on any described novel optical fiber Gan Wataru types life physical sign monitoring device of claim 1 ~ 7
Levy monitoring method, it is characterised in that comprise the following steps：
Using fiber interference structure, the perturbation of body kinematics initiation is captured, causes optical path difference to change, ultimately results in output
Light intensity changes, it is assumed that LASER Light Source intensity is, splitting ratio is α, and the light intensity of two-way interference light is respectivelyWith, photoelectricity spy
Surveying the light intensity that receives of device is, the phase difference of two-way interference light is, it is variations per hour, does not consider fibre loss, then：
When there is no external disturbance,Equal to 0；
When sensor fibre has monitored disturbance, minor variations occur for the length of optical fiber, simultaneously because elasto-optical effect, causes
The effective refractive index of optical fiber changes, therefore0 is not equal to, and it is consistent with external vibration change；
According to the light intensity received, extracted further according to vital sign and parser, by signal transacting and demodulation, obtain life
Sign.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594345.8A CN107233097A (en) | 2017-07-20 | 2017-07-20 | A kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and method |
| PCT/CN2018/080634 WO2019015354A1 (en) | 2017-07-20 | 2018-03-27 | New optical fibre interferometric device and method for monitoring vital signs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594345.8A CN107233097A (en) | 2017-07-20 | 2017-07-20 | A kind of novel optical fiber Gan Wataru types life physical sign monitoring devices and method |
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| CN107233097A true CN107233097A (en) | 2017-10-10 |
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| WO (1) | WO2019015354A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108451506A (en) * | 2018-04-20 | 2018-08-28 | 苏州安莱光电科技有限公司 | The contactless snoring of one kind and sleep apnea monitoring device |
| CN108567433A (en) * | 2018-05-16 | 2018-09-25 | 苏州安莱光电科技有限公司 | A kind of thin pad of status monitoring of multi-functional all -fiber non-intrusion type |
| WO2019015354A1 (en) * | 2017-07-20 | 2019-01-24 | 苏州安莱光电科技有限公司 | New optical fibre interferometric device and method for monitoring vital signs |
| CN109363658A (en) * | 2018-09-28 | 2019-02-22 | 武汉凯锐普信息技术有限公司 | A method for extracting breathing and heartbeat signals based on the principle of optical interference |
| CN110558957A (en) * | 2019-08-21 | 2019-12-13 | 武汉凯锐普信息技术有限公司 | vital sign monitoring device and method |
| CN113295308A (en) * | 2021-05-21 | 2021-08-24 | 苏州安莱光电科技有限公司 | Nonlinear static working point adjusting device and method |
| WO2022021614A1 (en) * | 2020-07-29 | 2022-02-03 | 泉州师范学院 | Contactless intelligent monitor and detection method therefor |
| WO2024193236A1 (en) * | 2023-03-22 | 2024-09-26 | 华为技术有限公司 | Optical fiber detection system and method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019015354A1 (en) * | 2017-07-20 | 2019-01-24 | 苏州安莱光电科技有限公司 | New optical fibre interferometric device and method for monitoring vital signs |
| CN108451506A (en) * | 2018-04-20 | 2018-08-28 | 苏州安莱光电科技有限公司 | The contactless snoring of one kind and sleep apnea monitoring device |
| CN108567433A (en) * | 2018-05-16 | 2018-09-25 | 苏州安莱光电科技有限公司 | A kind of thin pad of status monitoring of multi-functional all -fiber non-intrusion type |
| CN109363658A (en) * | 2018-09-28 | 2019-02-22 | 武汉凯锐普信息技术有限公司 | A method for extracting breathing and heartbeat signals based on the principle of optical interference |
| CN110558957A (en) * | 2019-08-21 | 2019-12-13 | 武汉凯锐普信息技术有限公司 | vital sign monitoring device and method |
| WO2022021614A1 (en) * | 2020-07-29 | 2022-02-03 | 泉州师范学院 | Contactless intelligent monitor and detection method therefor |
| CN113295308A (en) * | 2021-05-21 | 2021-08-24 | 苏州安莱光电科技有限公司 | Nonlinear static working point adjusting device and method |
| CN113295308B (en) * | 2021-05-21 | 2023-06-27 | 苏州安莱光电科技有限公司 | Nonlinear static working point adjusting device and method |
| WO2024193236A1 (en) * | 2023-03-22 | 2024-09-26 | 华为技术有限公司 | Optical fiber detection system and method |
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| WO2019015354A1 (en) | 2019-01-24 |
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Application publication date: 20171010 |
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