CN108814620A - Flexible physiological information monitoring device - Google Patents
Flexible physiological information monitoring device Download PDFInfo
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- CN108814620A CN108814620A CN201810541996.5A CN201810541996A CN108814620A CN 108814620 A CN108814620 A CN 108814620A CN 201810541996 A CN201810541996 A CN 201810541996A CN 108814620 A CN108814620 A CN 108814620A
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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
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
Abstract
This disclosure relates to a kind of flexible physiological information monitoring device.The device includes：Light source assembly emits light wave to detected object；Photoelectric detection component obtains first detection signal to optical signal photoelectric conversion of the light wave after detected object reflects；Processing component obtains detection data to first detection signal signal processing；Substrate is fabricated from a flexible material, carrying light source assembly, photoelectric detection component and processing component；Photoelectric detection component includes multiple detection parts around light source assembly arrangement, and the distance between detection part and photoelectric detection component are so that the ratio of the light intensity of the light intensity and light wave of optical signal is greater than or equal to the first distance of first threshold.In accordance with an embodiment of the present disclosure, light wave can be obtained by photoelectric detection component and obtain detection signal after reflection, obtain detection data after signal processing, by the analysis to detection data, can obtain the physiologic information of measurand in real time.
Description
Technical field
This disclosure relates to medical detection technology more particularly to a kind of flexible physiological information monitoring device.
Background technique
Detection (such as detection of blood oxygen saturation) to Human Physiology information is the important link in medical treatment.Blood oxygen saturation
Degree is one of most important physiology physical sign parameters of human body, is had in fields such as clinical medicine, medical monitoring, medical researches particularly important
Reference value.The main means of detection blood oxygen saturation are using finger clip type blood oxygen saturation detector at present, and detection position is generally
The positions such as finger, ear-lobe.
As attention rate of the people to own health improves, wearable Medical Devices have more extensive Demand Base, are good for
Health Medical Devices become the required consumer goods.The gradually concern by more and more people of non-intrusion type blood oxygen transducer.Current
Blood oxygen transducer is all based near infrared light spectral imaging technology, during practical application, generally needs in human motion
When long, dynamically monitor the parameters such as blood oxygen, pulse.But since current blood oxygen transducer detection position is limited, therefore to extreme ring
The information of blood oxygen is unable to get under border, for example, pilot is in flight course, it is real-time there is an urgent need to be carried out to physical trait parameter
Dynamic measures, but current oxygen saturation monitor device can not obtain blood oxygenation information of the pilot in flight course.
Summary of the invention
In view of this, the present disclosure proposes a kind of flexible physiological information monitoring devices.
According to the one side of the disclosure, a kind of flexible physiological information monitoring device is provided, described device includes：Light source group
Part, photoelectric detection component, processing component and substrate；
The light source assembly is used to emit light wave to detected object；
The photoelectric detection component is used to carry out photoelectricity to optical signal of the light wave after detected object reflection
Conversion obtains first detection signal；
The processing component is used to carry out signal processing to the first detection signal, obtains detection data；
The substrate is fabricated from a flexible material, for carrying the light source assembly, the photoelectric detection component and the place
Manage component；
Wherein, the photoelectric detection component includes multiple detection parts around light source assembly arrangement, the multiple
The distance between detection part and the photoelectric detection component are first distance, and the first distance is so that the optical signal
The ratio of light intensity and the light intensity of the light wave is greater than or equal at a distance from first threshold.
In one possible implementation, the light source assembly include at least two luminous components, described at least two
Luminous component emits the light wave of different central wavelengths or different spectral respectively,
Wherein, the processing component is also used to control at least two luminous components of the light source assembly in light period
It shines according to predetermined order,
Wherein, the response section of the photoelectric detection component covers in the light emitted wave of at least two luminous components
Cardiac wave is long or in the spectral range of the light emitted wave of at least two luminous components.
In one possible implementation, the detection data includes the blood oxygen saturation of detected object, the place
It manages component and signal processing is carried out to the first detection signal, obtaining detection data includes：
Analog-to-digital conversion is carried out to multiple first detection signals of the multiple detection part, and carries out summation process, is obtained
Digital detection signal；
Calculus of differences is carried out to the digital detection signal, obtains the blood oxygen saturation of each light period；
According to the blood oxygen saturation of each light period, the blood oxygen saturation in first time period is determined.
In one possible implementation, calculus of differences is carried out to the digital detection signal, obtains each shine week
The blood oxygen saturation of phase includes：
According to light period pair digital detection signal point corresponding from the light wave of the different central wavelengths or different spectral
Not carry out calculus of differences, to obtain the relationship between the amplitude of digital detection signal and hemoglobin concentration；
According to the relationship between the amplitude and hemoglobin concentration of the digital detection signal, each light period is obtained
Blood oxygen saturation.
In one possible implementation, it according to the blood oxygen saturation of each light period, determines in first time period
Blood oxygen saturation include：The arithmetic average of the blood oxygen saturation of all light periods in first time period is determined as institute
State the blood oxygen saturation of detected object.
In one possible implementation, the first distance is determined by Monte-carlo Simulation Method.
In one possible implementation, the photoelectric detection component includes multiple detection parts, the multiple detection
Component is respectively positioned on using the position of the light source assembly as the center of circle, using the first distance as on the circle of radius.
In one possible implementation, described device further includes：Encapsulated layer is fabricated from a flexible material, for encapsulating
The light source assembly, the photoelectric detection component and the processing component, and engaged with the flexible substrate.
In one possible implementation, described device further includes：Transmitting-receiving subassembly, for sending the detection data
To terminal, and receive the instruction of the terminal.
In one possible implementation, described device includes flexible oxygen saturation monitor device, the flexibility oxygen saturation monitor
Device is integrated in wearable device, with the blood oxygen saturation of the determination detected object.
According to the flexible physiological information monitoring device of all aspects of this disclosure light source can be obtained by photoelectric detection component
The detection signal that the light wave of component transmitting obtains after body reflects is obtaining detection after processing component carries out signal processing
Data can obtain the physiologic information of measurand, such as blood oxygen saturation by the analysis and processing to detection data in real time
Deng.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the disclosure will become
It is clear.
Detailed description of the invention
Comprising in the description and constituting the attached drawing of part of specification and specification together illustrates the disclosure
Exemplary embodiment, feature and aspect, and for explaining the principles of this disclosure.
Fig. 1 is the schematic diagram of flexible physiological information monitoring device shown according to an exemplary embodiment；
Fig. 2 is the side sectional view of flexible physiological information monitoring device shown according to an exemplary embodiment；
Fig. 3 is the process that processing component shown according to an exemplary embodiment carries out signal processing to first detection signal
Figure；
Fig. 4 is the schematic diagram of the flexible oxygen saturation monitor device shown according to an exemplary embodiment being integrated in the helmet.
Specific embodiment
Various exemplary embodiments, feature and the aspect of the disclosure are described in detail below with reference to attached drawing.It is identical in attached drawing
Appended drawing reference indicate element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, giving numerous details in specific embodiment below to better illustrate the disclosure.
It will be appreciated by those skilled in the art that without certain details, the disclosure equally be can be implemented.In some instances, for
Method, means, element and circuit well known to those skilled in the art are not described in detail, in order to highlight the purport of the disclosure.
Fig. 1 is the schematic diagram of the flexible physiological information monitoring device shown in an exemplary embodiment.As shown in Figure 1, according to
The physiologic information monitoring device of the embodiment of the present disclosure includes light source assembly 11, photoelectric detection component 12, processing component 13 and substrate
14。
Light source assembly 11 is used to emit light wave to detected object；
Photoelectric detection component 12 is used to carry out photoelectric conversion to optical signal of the light wave after detected object reflects, and obtains the
One detection signal；
Processing component 13 is used to carry out signal processing to first detection signal, obtains detection data；
Substrate 14 is fabricated from a flexible material, for carrying light source assembly 11, photoelectric detection component 12 and processing component 13；
Wherein, photoelectric detection component 12 includes the multiple detection parts arranged around light source assembly 11, multiple detection parts
The distance between photoelectric detection component 11 is first distance, and first distance is light intensity and light source group so that the optical signal of reflection
The ratio of the light intensity for the light wave that part 11 emits is greater than or equal to the distance of first threshold.
According to the flexible physiological information monitoring device of the embodiment of the present disclosure, light source group can be obtained by photoelectric detection component
The detection signal that the light wave of part transmitting obtains after body reflects is obtaining testing number after processing component carries out signal processing
According to the physiologic information of measurand, such as blood oxygen saturation etc. can be obtained in real time by the analysis and processing to detection data.
It for example, may include flexible blood oxygen detection dress according to the flexible physiological information detector of the embodiment of the present disclosure
It sets.In the related art, the non-invasive blood oxygen detection based on photoelectric characteristic is with lambert Bill (Beer-Lambert) law
For theoretical basis, realized using Their Determination by Spectrophotometry principle.For example, can control the different light source alternating of two beam wavelength
It shines, the light wave of generation after site tissue reflection (such as forehead etc.), reaches photoelectric sensor assembly after testing.Wherein, light wave
Total light intensity be equal to the summation of the light intensity of detection site tissue resorption, the light intensity of transmission and the light intensity of reflection.Photodetection
Component detects the light intensity magnitude reflected after the absorption of hemoglobin et al. substance in vivo, obtains volume wave signal.It is logical
It crosses and volume wave signal is analyzed and calculated, the physiologic informations such as pulse and oximetry value can be obtained.
In one possible implementation, light source assembly 11, photoelectric detection component 12 are connected with processing component 13,
In example, light source assembly 11, photoelectric detection component 12 can be used flexible wire and connect with processing component 13.
Fig. 2 is the side sectional view of flexible physiological information monitoring device shown according to an exemplary embodiment.Such as Fig. 2 institute
Show, the flexible physiological information monitoring device further includes encapsulated layer 15, and encapsulated layer 15 is fabricated from a flexible material, and is used for packaged light source
Component 11, photoelectric detection component 12 and processing component 13, and engaged with substrate 14.Light source assembly 11,12 and of photoelectric detection component
Processing component 13 is arranged on substrate 14.Substrate 14 can be bi-layer substrate, to carry and cover light source assembly 11, Photoelectric Detection
Component 12 and processing component 13.
In one possible implementation, light source assembly 11 includes at least two luminous components, at least two hair
Light component emits the light wave of different central wavelengths or different spectral respectively.Luminous component can be light emitting diode (LED), laser
Device (LD) etc. can generate the device of the light wave of different wave length.In this example, light source assembly 11 includes luminous component 111 and shines
Component 112, luminous component 111 and luminous component 112 are integrated into an entirety, and can emit different central wavelengths or different frequencies
The light wave of spectrum, for example, luminous component 111 can emission center wavelength be 620nm light wave, the light wave that luminous component 112 emits
Central wavelength can near the isobestic point of oxyhemoglobin and deoxyhemoglobin, such as luminous component 112 emit light
The central wavelength of wave is 850nm.
In one possible implementation, processing component 13 is also used to control at least two illumination regions of light source assembly 11
Part shines in light period according to predetermined order.In this example, the luminous week of luminous component 111 and luminous component 112 in 1ms
The light wave that central wavelength is 620nm and the light wave that central wavelength is 850nm are successively issued in phase.Light period can also be shorter, more
Short light period make two luminous components closer to and meanwhile shine, photoelectric detection component is also closer to being detected simultaneously by
Reflected light signal.
In embodiment of the disclosure, the response section of photoelectric detection component 12 covers at least two luminous components institute
Emit the central wavelength of light wave or in the spectral range of the light emitted wave of at least two luminous components.In this example, light
It is the Si-based photodetectors of 400nm-1100nm that response wave length, which can be used, in all detection parts of electro-detection component 12.It is described
Light wave is received after the reflection of detected object by the photoelectric detection component 12 being arranged in around light source assembly 11.
In one possible implementation, photoelectric detection component 12 includes multiple detection parts, the multiple test section
Part arranges that the distance between each Photoelectric Detection component and light source assembly 11 are first distance, described around light source assembly 11
First distance is the distance determined by Monte-carlo Simulation Method, and the distance between light source assembly 11 and detection part are described
When first distance, the ratio of the light intensity for the light wave that light intensity and the light source assembly 11 of the optical signal through detected object reflection issue is big
In first threshold, that is, in the case where the light intensity for the light wave that light source assembly 11 issues is certain, optical signal that detection part receives
Light intensity can satisfy detection needs.
In one possible implementation, Monte-carlo Simulation Method is having of transmitting in biological tissues of simulated photons
One of mathematical method is imitated, is the statistical calculation method that simulated photons are walked in biological tissue's internal random.Effectively to react raw
Multi-layer biological tissue model can be used come the case where simulating optical transport in the genuine property of object tissue.The incident biological group of beam orthogonal
Surface is knitted, mirror-reflection and transmission occurs in air and tissue upper and lower surface, for example, occurring at i-th layer with i+1 bed boundary
Transmission and mirror-reflection, and photon can be absorbed and scatter inside biological tissue.In this example, photon can be set at biological group
The step-length of internal random walking is knitted, and analog goes out the general path of photon random walk, receives reflected light so as to obtain
The strongest position of the light intensity of wave.When in this example, between the distance between light source assembly 11 8mm-1cm, the light of reflecting light
It is most strong by force.
In this example, the first distance can be 1cm, which made instead by the way that Monte-carlo Simulation Method is determining
The ratio between the light intensity of light wave that the light intensity and light source assembly 11 for penetrating optical signal issue reaches the light intensity of maximum value.The disclosure to first away from
From specific value with no restriction.
In one possible implementation, multiple detection parts can be respectively positioned on the position of the light source assembly 11 as circle
The heart, using the first distance as on the circle of radius.In this example, photoelectric detection component 12 includes 4 detection part (detection parts
121, detection part 122, detection part 123 and detection part 124), 4 detection parts are respectively positioned on the position of light source assembly 11
For the center of circle, using 1cm as on the circle of radius, also, 4 detection parts form 4 vertex of rectangle, and light source assembly 11 is located at described
On the diagonal line of rectangle.It should be appreciated that those skilled in the art can set according to actual needs detection part quantity and its
Be arranged position, the disclosure to this with no restriction.
In embodiment of the disclosure, processing component 13 can carry out letter to multiple first detection signals of multiple detection parts
Number processing, and is stored and transmitted.
Fig. 3 is the stream that processing component 13 shown according to an exemplary embodiment carries out signal processing to first detection signal
Cheng Tu.In embodiment of the disclosure, detection data can be the blood oxygen saturation of detected object, and processing component 13 is to described
First detection signal carries out signal processing, obtains detection data and includes：
In step S31, analog-to-digital conversion is carried out to multiple first detection signals of the multiple detection part, and asked
And processing, obtain digital detection signal；
In step s 32, calculus of differences is carried out to the digital detection signal, obtains the blood oxygen saturation of each light period
Degree；
In step S33, according to the blood oxygen saturation of each light period, the blood oxygen saturation in first time period is determined
Degree.
In one possible implementation, in step S31, first detection signal can be voltage signal, to described
Voltage signal can directly acquire digital detection signal after carrying out analog-to-digital conversion.First detection signal can also be current signal, can
After the current signal is converted into voltage signal, then analog-to-digital conversion is carried out, to obtain digital detection signal.In addition, can also be right
After the voltage signal is filtered, then carry out analog-to-digital conversion.
In one possible implementation, light source assembly 11 may include two luminous components, described two luminous components
The light wave of different central wavelengths or different spectral is successively issued in light period, photoelectric detection component 12 may include multiple detections
Component, the multiple detection part successively detect the reflecting light of different central wavelengths or different spectral in light period,
Processing component 13 carries out summation process after the first detection signal that multiple detection parts detect being carried out analog-to-digital conversion again, with
Obtain the digital detection signal of the light wave of different central wavelengths or different spectral in light period.
For example, the emission center wavelength first of luminous component 111 is λ in light period1Light wave, it is after reflection, multiple
Detection part detects reflecting light, and is respectively formed first detection signal, processing component 13 to all first detection signals into
After row analog-to-digital conversion, then summation process is carried out, is λ with acquisition and central wavelength1The corresponding digital detection signal of light wave.Together
Reason, in light period, after luminous component 111 shines, it is λ that luminous component 112, which issues central wavelength,2Light wave, place
Managing component 13 and obtaining according to above-mentioned processing method with central wavelength is λ2The corresponding digital detection signal of light wave.
In one possible implementation, step S32 may include：
In step S321, according to the corresponding number of light wave of light period pair and the different central wavelengths or different spectral
Word detection signal carries out calculus of differences respectively, to obtain the relationship between the amplitude of digital detection signal and hemoglobin concentration；
In step S322, according to the relationship between the amplitude and hemoglobin concentration of the digital detection signal, obtain
The blood oxygen saturation of each light period.
In one possible implementation, in step S321, calculus of differences can be carried out to digital detection signal.Showing
In example, k-th of light period tkDigital detection signal amplitude be R (tk) ,+1 light period t of kthk+1Digital detection signal
Amplitude is R (tk+1), after taking natural logrithm to two above digital detection signal amplitude, difference fortune is carried out according to following equation (1)
It calculates：
Wherein, A (tk+1)=ln R (tk+1), A (tk)=lnR (tk), tkAt the time of beginning for k-th of light period, tk+1
At the time of beginning for+1 light period of kth, μaFor absorption coefficient, i.e. photon absorbed probability in unit path, c is light
Speed.
In one possible implementation, when measuring blood oxygen saturation, it can only consider oxyhemoglobin (HbO2)
And the content of deoxyhemoglobin (Hb), hemoglobin concentration may include oxyhemoglobin concentrationWith the blood red egg of deoxidation
White concentration CHb.Therefore equation (1) can write following equation (2)：
Wherein, Δ Ak=A (tk+1)-A(tk), Δ tk=tk+1-tk, For the suction of oxyhemoglobin
Backscatter extinction logarithmic ratio, εHbFor the absorptivity of deoxyhemoglobin.
In one possible implementation, from the equations above (2), according to light period pair from it is described it is different in cardiac wave
Long or different spectral the corresponding digital detection signal of light wave carries out calculus of differences respectively, can obtain central wavelength or different spectral
The corresponding digital detection signal of light wave amplitude and hemoglobin concentration between relationship.
In one possible implementation, above equation (2) are based on, a length of λ of centering cardiac wave1The corresponding number of light wave
It detects signal and carries out calculus of differences, can get central wavelength is λ1The corresponding digital detection signal of light wave and hemoglobin concentration
Between relational expression (3)：
In one possible implementation, above equation (2) are based on, a length of λ of centering cardiac wave2The corresponding number of light wave
It detects signal and carries out calculus of differences, can get central wavelength is λ2The corresponding digital detection signal of light wave and hemoglobin concentration
Between relational expression (4)：
In one possible implementation, blood oxygen saturation can be indicated by following equation (5)：
Wherein, SpO2For blood oxygen saturation.
Therefore, in step S322, the blood oxygen saturation of k-th of light period can be obtained according to equation (3) and equation (4)
Spend SpO2(k), SpO2(k) it can be indicated according to following equation (6)：
Wherein,
In one possible implementation, work as central wavelength lambda2For oxyhemoglobin and deoxyhemoglobin etc.
Absorb point when, equation (6) can approximate representation be following equation (7)：
It, can be in the number to kth+1 light period and k-th of light period according to calculus of differences described in step S32
When detecting signal and carrying out calculus of differences, the Uniform noise in the signal of place to go, thus by the detection data of effectively physiologic information from
It is extracted in noise, and eliminates the interference of the relative motion noise between photoelectric detection component 11 and detected object.
It in one possible implementation, can be by the blood of all light periods in first time period in step S33
The arithmetic average of oxygen saturation is determined as the blood oxygen saturation of the detected object.Calculate all hairs in first time period
The arithmetic average of the blood oxygen saturation of photoperiod can exclude the influence of the possible misalignment of single measurement, improve in first time period
The measurement accuracy of blood oxygen saturation.In this example, first time period includes N number of light period, that is, the value range of k be 1,
2 ..., N can determine N number of SpO according to following equation (8)2(k) arithmetic average, it is full as the blood oxygen in first time period
And degree
In one possible implementation, first time period can be cardiac cycle.In this example, detected object
Heart rate is 60 beats/min, i.e., each second, heartbeat was primary, then cardiac cycle is 1 second.Light period can be 1ms, then and first
Period may include 1000 light periods, i.e. N=1000.In this example, the blood oxygen saturation in first time periodIt can
To be SpO2(1)、SpO2(2)、…、SpO2(1000) arithmetic average.
In one possible implementation, first time period may include multiple cardiac cycles.It is determining at the first time
Blood oxygen saturation in sectionWhen, the blood oxygen saturation of each cardiac cycle can be calculated, then calculate the blood of each cardiac cycle
It is flat can also directly to calculate counting for the blood oxygen saturation of all light periods in first time period for the arithmetic average of oxygen saturation
Mean value.
In this example, it can be the cardiac cycle of detected object 1 second, light period can be 1ms, and first time period can
Included for 3 cardiac cycle.The blood oxygen saturation of cardiac cycle can be the blood oxygen of 1000 light periods in the cardiac cycle
The arithmetic average of saturation degree, the blood oxygen saturation in first time period can be the calculation of the blood oxygen saturation of 3 cardiac cycle
Number average value.Blood oxygen saturation in first time period can also be that the blood oxygen of 3000 light periods in first time period is full
With the arithmetic average of degree.Both the above calculates the arithmetic average of the blood oxygen saturation of the light period in first time period
Method is equivalent.The disclosure to calculate arithmetic average method with no restrictions.
In one possible implementation, processing component 13 can be that single-chip microcontroller, CPU, MPU, FPGA etc. are any can be into
The processing apparatus of row signal processing, processing component 13 can be realized by special hardware circuit, can also pass through general procedure portion
Part combines executable logical order to realize, to execute the treatment process of processing component 13.
In accordance with an embodiment of the present disclosure, the flexible physiological information monitoring device further includes power supply module, and power supply module can
Electric power is provided for processing component 13, light source assembly 11, if photoelectric detection component 12 needs to power, power supply module can also be photoelectricity
Detection components 12 provide electric power.
In one possible implementation, flexible physiological information monitoring device may also include R-T unit, transmitting-receiving dress
It sets to establish using the modes such as bluetooth, infrared, Wireless Fidelity (WIFI) and terminal (such as smart phone etc.) and communicate to connect, from
And realize the communication between device for detecting luminous flux and terminal.
R-T unit can will test data and be sent to terminal, so that terminal is recorded, handled and analyzed.Meanwhile it receiving and dispatching
Device also can receive the instruction of terminal, and processing component 13 is made to execute described instruction.
In embodiment of the disclosure, the flexible physiological information monitoring device may also include storage assembly, can be used for depositing
Detection data is stored up, and the storage record of the detection data of batch export when needed.In addition, power supply module, transmitting-receiving subassembly and storage
Component can be connect by flexible wire with processing component 13, may alternatively be integrated in processing component 13.
In accordance with an embodiment of the present disclosure, for carrying the lining of light source assembly 11, photoelectric detection component 12 and processing component 13
Bottom 14 is fabricated from a flexible material, and can be attached on skin, can also be integrated in wearable device, in this example, described flexible raw
Reason information monitoring device is used as flexible oxygen saturation monitor device, and flexible oxygen saturation monitor device can be attached on skin, can also collect
At in wearable device, blood oxygen saturation can be determined according to detection data, and smaller to the interference of measurand, when can be long
Between use.
Fig. 4 is the schematic diagram of the flexible oxygen saturation monitor device shown according to an exemplary embodiment being integrated in the helmet.
In embodiment of the disclosure, flexible oxygen saturation monitor device is integrated in the helmet, which can be the helmet of pilot,
The blood oxygen saturation of pilot is monitored during pilot driver aircraft.
In this example, flexible oxygen saturation monitor device is fixed in the speciality liner for being fixed on the helmet, pilot's forehead
Size and shape difference, to reduce the loss in light wave transmissions, substrate can be made of the bio-compatible material for having elasticity,
To be bonded the forehead of pilot.The window that suitable size is opened and closed at the light transmission needed for light source assembly and photoelectric detection component, so that light
The light wave that source component issues is incident to pilot's forehead position with lower loss, the light letter after the reflection of the forehead of pilot
It number is received by photoelectric monitor component, to obtain detection signal.Processing component carries out signal to the detection signal of photoelectric detection component
Processing obtains detection data, to determine the blood oxygen saturation of pilot according to detection data.
Processing component can will due to external environmental interference (for example, the noise jamming that pilot generates during exercise, detection
Device and human skin generate relative displacement and the noise jamming that generates) and the periodical volume wave signal extraction flooded comes out,
Therefore, the flexible oxygen saturation monitor device can effectively remove noise jamming, improve blood oxygen saturation in the state of work
Detection accuracy.In addition, flexible oxygen saturation monitor device may include R-T unit, pass through R-T unit, the blood oxygen saturation of pilot
Information can be sent to master station, provide reference for evaluation pilot's physiological parameter.Flexible oxygen saturation monitor device can also directly by
Detection data is sent to master station, and master station can determine the blood oxygen saturation of pilot according to detection data.
It, can be by flexible physiological information monitoring device effective integration to aircrew helmet by using embodiment of the disclosure
In, blood oxygenation information of the pilot in flight course is monitored, and filter out noise jamming in real time, obtains accurate blood oxygen
Saturation infromation.Transmitting-receiving subassembly and master station are wirelessly connected, and guarantee that master station grasps the physiologic information of pilot in real time, to be
The physical signs of pilot makes corresponding evaluation.The physiological information detection device interferes very little to pilot, can be in pilot
It is in-flight carried out continuously pulse wave blood oxygen saturation monitoring for a long time, master station is enabled to obtain the physiology letter of pilot in real time
Breath.
The presently disclosed embodiments is described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.The selection of term used herein, purport
In the principle, practical application or technological improvement to the technology in market for best explaining each embodiment, or lead this technology
Other general master stations in domain, which lead to technical staff, can understand each embodiment disclosed herein.
Claims (10)
1. a kind of flexible physiological information monitoring device, which is characterized in that including：Light source assembly, photoelectric detection component, processing component
And substrate；
The light source assembly is used to emit light wave to detected object；
The photoelectric detection component is used to carry out photoelectric conversion to optical signal of the light wave after detected object reflection,
Obtain first detection signal；
The processing component is used to carry out signal processing to the first detection signal, obtains detection data；
The substrate is fabricated from a flexible material, for carrying the light source assembly, the photoelectric detection component and the processing group
Part；
Wherein, the photoelectric detection component includes multiple detection parts around light source assembly arrangement, the multiple detection
The distance between component and the photoelectric detection component are first distance, and the first distance is the light intensity so that the optical signal
It is greater than or equal at a distance from first threshold with the ratio of the light intensity of the light wave.
2. the apparatus according to claim 1, which is characterized in that the light source assembly includes at least two luminous components, institute
The light wave that at least two luminous components emit different central wavelengths or different spectral respectively is stated,
Wherein, the processing component be also used to control at least two luminous components of the light source assembly in light period according to
Predetermined order shines,
Wherein, the response section of the photoelectric detection component covers the middle cardiac wave of the light emitted wave of at least two luminous components
It grows or in the spectral range of the light emitted wave of at least two luminous components.
3. the apparatus of claim 2, which is characterized in that the detection data includes the blood oxygen saturation of detected object
Degree, the processing component carry out signal processing to the first detection signal, obtain detection data and include：
Analog-to-digital conversion is carried out to multiple first detection signals of the multiple detection part, and carries out summation process, obtains number
Detect signal；
Calculus of differences is carried out to the digital detection signal, obtains the blood oxygen saturation of each light period；
According to the blood oxygen saturation of each light period, the blood oxygen saturation in first time period is determined.
4. device according to claim 3, which is characterized in that carry out calculus of differences to the digital detection signal, obtain
The blood oxygen saturation of each light period includes：
According to light period pair and the corresponding digital detection signal of light wave of the different central wavelengths or different spectral respectively into
Row calculus of differences, to obtain the relationship between the amplitude of digital detection signal and hemoglobin concentration；
According to the relationship between the amplitude and hemoglobin concentration of the digital detection signal, the blood oxygen of each light period is obtained
Saturation degree.
5. device according to claim 3, which is characterized in that according to the blood oxygen saturation of each light period, determine
Blood oxygen saturation in one period includes：
The arithmetic average of the blood oxygen saturation of all light periods in first time period is determined as the detected object
Blood oxygen saturation.
6. the apparatus according to claim 1, which is characterized in that the first distance is true by Monte-carlo Simulation Method
Fixed.
7. the apparatus according to claim 1, which is characterized in that the photoelectric detection component includes multiple detection parts, institute
It states multiple detection parts to be respectively positioned on using the position of the light source assembly as the center of circle, using the first distance as on the circle of radius.
8. the apparatus according to claim 1, which is characterized in that further include：Encapsulated layer is fabricated from a flexible material, for sealing
The light source assembly, the photoelectric detection component and the processing component are filled, and is engaged with the flexible substrate.
9. the apparatus according to claim 1, which is characterized in that further include：Transmitting-receiving subassembly, for sending out the detection data
It send to terminal, and receives the instruction of the terminal.
10. device described in any one of -9 according to claim 1, which is characterized in that described device includes flexible blood oxygen prison
Device is surveyed, the flexibility oxygen saturation monitor device is integrated in wearable device, full with the blood oxygen of the determination detected object
And degree.
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