CN110174200A - Pressure-detecting device, terminal - Google Patents
Pressure-detecting device, terminal Download PDFInfo
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- CN110174200A CN110174200A CN201910514368.2A CN201910514368A CN110174200A CN 110174200 A CN110174200 A CN 110174200A CN 201910514368 A CN201910514368 A CN 201910514368A CN 110174200 A CN110174200 A CN 110174200A
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- 230000003287 optical effect Effects 0.000 claims abstract description 86
- 230000008859 change Effects 0.000 claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 18
- 230000008676 import Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 230000004446 light reflex Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 15
- 210000000707 wrist Anatomy 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 210000002321 radial artery Anatomy 0.000 description 3
- 230000036772 blood pressure Effects 0.000 description 2
- 230000035485 pulse pressure Effects 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004872 arterial blood pressure Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
Classifications
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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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The embodiment of the present disclosure provides a kind of pressure-detecting device, terminal, is related to field of terminal technology.The photo-plethysmographic equipment includes: the first light guide structure, the second light guide structure and optical detector, generate displacement or deformation under external force by the second light guide structure, so that the changed mode of relative area of the first exit facet of second plane of incidence and the first light guide structure of the second light guide structure, to change the light energy for the light for importing the second light guide structure, change the electric signal that optical detector generates, therefore the electric signal that optical detector generates can accurately reflect the external force size being applied on the second light guide structure.When detecting the pulse wave of human body using the pressure-detecting device that the embodiment of the present disclosure provides, the external force wave energy that the electric signal based on optical detector output generates enough accurately reflects the pulse wave of human body.
Description
Technical field
This disclosure relates to field of terminal technology more particularly to a kind of pressure-detecting device, terminal.
Background technique
Pulse wave detection device is a kind of for detecting the device of human pulse wave.In general, pulse detecting device includes light
Source, light guide structure and optical detector made of optical material, optical detector is for detecting luminous energy derived from the light guide structure
It measures and electric signal is generated according to the light energy detected, the electric signal that optical detector generates is for generating pulse wave.
When detecting human pulse wave using above-mentioned pulse wave detection device, light guide structure generates change under arterial pressure effect
The guide-lighting area of shape, light guide structure changes, so that the light energy that optical detector detects and the electricity according to light energy generation
Signal changes.
But the frequent deformation of light guide structure can cause the performance of optical material to change, and optical detector is caused to lead
The electric signal generated when photo structure deformation not can accurately reflect pulse pressure size, eventually lead to the pressure wave and human body of generation
Pulse wave has differences.Meanwhile with deformation restorability optical material it is expensive, cause pulse detecting device at
This is higher.
Summary of the invention
The disclosure provides a kind of pressure-detecting device, terminal, to solve the defects of the relevant technologies.
Disclosure first aspect provides a kind of pressure-detecting device, including the first light guide structure, the second light guide structure and
Optical detector；First light guide structure includes the first exit facet；Second light guide structure includes second plane of incidence；
First light guide structure, for transmitting light to second light guide structure；
Second light guide structure is arranged to generate displacement or deformation under external force, so that second plane of incidence
It changes with the relative area of first exit facet；
The optical detector, is connected to second light guide structure, and detection imports the light of second light guide structure
Light energy.
Selectively, second light guide structure includes:
Light guide, including second plane of incidence and the side being connect with second plane of incidence；
Elastic supporting member for supporting optical member is connected to the side；
The light guide generates the displacement under the external force, so that second plane of incidence goes out with described first
The relative area for penetrating face changes.
Selectively, when the light guide is not affected by external force, second plane of incidence and first plane of incidence at least portion
Split-phase pair, alternatively, second plane of incidence is staggered with first plane of incidence.
Selectively, second light guide structure is elastic construction；
Second light guide structure generates the deformation under the external force, and second plane of incidence generates institute's rheme
It moves, so that the relative area of second plane of incidence and first exit facet changes.
Selectively, described device further include:
Light source；
First light guide structure includes first plane of incidence；
The light of the light source transmitting imports first light guide structure through first plane of incidence.
Selectively, described device further include:
Convex lens, between the light source and first plane of incidence, the light source is located at the focus of the convex lens
Place.
Selectively, first light guide structure further includes guide-lighting for incident ambient to be reflexed to described first
The reflecting surface of inside configuration.
Selectively, described device further includes the light-blocking knot for blocking the light for not importing first light guide structure
Structure.
Selectively, described device further include:
Shell is installed with first light guide structure, second light guide structure and the optical detector, sets on the shell
There is mounting hole；
Pressure conduction structure, one end are connect with second light guide structure, and the other end is located in the mounting hole.
Selectively, described device further include:
Processing module, the processing module are electrically connected with the optical detector, for receiving the optical detector according to inspection
The electric signal that the light energy measured is generated and exported, sends the electric signal to the equipment outside the pressure-detecting device,
And/or after receiving at least two electric signals, according at least two electric signals, determine that the external force value of external force becomes
Change information.
Selectively, described device further includes at least one of following:
Memory module is electrically connected with the processing module, is become for storing the external force value that the processing module is sent
Change information；
Sending module is electrically connected with the processing module, for by the received electric signal of the processing module and/or
The determining external force value change information is sent to the equipment outside the pressure-detecting device.
Selectively, described device further includes output module；
The output module is electrically connected with the processing module, for exporting the external force value change information to user.
Selectively, described device further includes charging interface and power storage module:
The charging interface is electrically connected with the power storage module, is used cooperatively, is given for the charging plug with power supply unit
The power storage module charging；
The power storage module is electrically connected with the processing module, for energizing to the processing module.
Disclosure second aspect provides a kind of terminal, the pressure-detecting device provided including above-mentioned first aspect.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Pressure-detecting device, terminal provided by the disclosure at least have the advantages that
The embodiment of the present disclosure provide pressure-detecting device by the second light guide structure generates under external force be displaced or
Deformation, so that second plane of incidence of the second light guide structure and the relative area of the first exit facet of the first light guide structure change
Mode, come change import the second light guide structure light light energy, change optical detector generate electric signal, therefore light visit
The external force size being applied on the second light guide structure can be accurately reflected by surveying the electric signal that device generates.
First light guide structure and the second light guide structure can be rigid structure, such as hollow tube, compared with the prior art in
The optical material with deformation restorability used, the rigid structures such as hollow tube it is cheap so that by its make pressure
Cost is relatively low for force checking device.
When detecting the pulse wave of human body using the pressure-detecting device that the embodiment of the present disclosure provides, exported based on optical detector
The external force wave energy that generates of electric signal enough accurately reflect the pulse wave of human body.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is the structural schematic diagram of the pulse wave detection device provided in the related technology；
Fig. 2 is a structural schematic diagram of pressure-detecting device shown according to an exemplary embodiment；
Fig. 3 is a structural schematic diagram of the first light guide structure and light guide shown according to an exemplary embodiment；
Fig. 4 is another structural schematic diagram of the first light guide structure and light guide shown according to an exemplary embodiment；
Fig. 5 is another structural schematic diagram of the first light guide structure and light guide shown according to an exemplary embodiment；
Fig. 6 is another structural schematic diagram of pressure-detecting device shown according to an exemplary embodiment；
Fig. 7 is the structural schematic diagram of the first light guide structure shown according to an exemplary embodiment；
Fig. 8 is the structural schematic diagram of wearable device shown according to an exemplary embodiment.
Wherein each label is meant in attached drawing:
1, the first light guide structure；
11 ', first exit facet；
12 ', first plane of incidence；
2, optical detector；
3, light guide；
31 ', second plane of incidence；
32 ', side；
33 ', second exit facet；
4, elastic supporting member for supporting optical member；
5, light source；
6, convex lens；
7, reflecting mirror；
8, light-blocking structure；
9, shell；
10, pressure conduction structure；
101 ', stress surface；
11, mainboard；
12, interface；
A, position to be detected；
B, structure is worn；
C, sensor；
D, wrist；
d1, radial artery.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is the structural schematic diagram of the pulse wave detection device provided in the related technology.As shown in Figure 1, pulse wave detects
Device includes the light source being sequentially arranged, light guide structure and optical detector made of optical material.Light guide structure is in pulse pressure
It is deformed under effect, the guide-lighting area inside light guide structure changes, so that light energy (such as luminous energy derived from light guide structure
Amount, luminous intensity etc.) it changes, optical detector generates and the electric signal exported changes.
The frequent deformation of light guide structure can cause the performance of optical material to change, and light guide structure is sent out under external force
The deformation quantity when shape that changes not can accurately reflect external force size, the telecommunications for causing optical detector to be generated according to the light energy detected
It number not can accurately reflect the pressure size of pulse, the pulse wave of the pressure wave and human body that eventually lead to generation has differences.
The embodiment of the present disclosure provides a kind of pressure-detecting device, including the first light guide structure, the second light guide structure and light
Detector；First light guide structure includes the first exit facet, and the second light guide structure includes second plane of incidence；
Wherein, the first light guide structure, for transmitting light to the second light guide structure；Second light guide structure, is arranged to outside
Power effect is lower to generate displacement or deformation, so that the relative area of second plane of incidence and the first exit facet changes；Optical detector,
It is connected to the second light guide structure, detection imports the light energy of the light of the second light guide structure.Optical detector is according to the light detected
Energy generates electric signal, and exports the electric signal, and the electric signal is for determining the external force size being applied on the second light guide structure.
First exit facet and second plane of incidence may be the same or different；First exit facet can be round, square
The shapes such as shape, rectangle, second plane of incidence can be the shapes such as circle, square, rectangle.
It due to the pressure-detecting device that the embodiment of the present disclosure provides, is generated under external force by the second light guide structure
Displacement or deformation, so that the relative area of the first exit facet of second plane of incidence and the first light guide structure of the second light guide structure is sent out
The mode for changing changes light to change the light energy for the light for exporting and importing the second light guide structure by the first light guide structure
The electric signal that detector generates, therefore in the pressure-detecting device of embodiment of the present disclosure offer, the electric signal of optical detector generation
The external force size being applied on the second light guide structure can be accurately reflected.
When detecting the pulse wave of human body using the pressure-detecting device that the embodiment of the present disclosure provides, exported based on optical detector
The external force wave energy that generates of electric signal enough accurately reflect the pulse wave of human body.
Fig. 2 is a structural schematic diagram of pressure-detecting device shown according to an exemplary embodiment.As shown in Fig. 2, should
Pressure-detecting device includes: the first light guide structure 1, the second light guide structure (not shown) and optical detector 2；First light guide structure 1
Including the first exit facet 11 '；Second light guide structure includes light guide 3 and elastic supporting member for supporting optical member 4；Light guide 3 includes second plane of incidence
31 ', the side 32 ' being connect with second plane of incidence 31 '；One end of elastic supporting member for supporting optical member 4 is connected to side 32 ', elastic supporting member for supporting optical member 4
The other end is connected to shell 9；Wherein, the first light guide structure 1 and light guide 3 are rigid structure；When light guide 3 is by external force,
Elastic supporting member for supporting optical member 4 is deformed under external force, and light guide 3 generates displacement under external force, so that second plane of incidence 31 '
It changes with the relative area of the first exit facet 11 '.
Shown in Fig. 2, light guide 3 further includes the second exit facet 33 ', and the second exit facet 33 ' is connect with side 32 '；Optical detection
Device 2 is located at 33 ' side of the second exit facet, and optical detector 2 is for detecting light energy derived from light guide 3.By Fig. 2 institute
The light guide 3 shown is to wait gauge structures, and second plane of incidence 31 ' and the first exit facet 11 ' are identical, and light guide 3 is rigid, because
This optical detector 2 is also to detect to the light energy for importing light guide 3.
Light guide 3 can be the structure made of rigid material, such as hollow tube, be also possible to the knot made of optical material
Structure.Elastic supporting member for supporting optical member 4 is deformed under external force, is restored after external force is cancelled to original structure.
Light guide 3 can be made of light-proof material or the outer surface of light guide 3 can be covered with light-proof material
Layer, thus shield extraneous light and limitation internal light it is excessive.
Elastic supporting member for supporting optical member 4 shown in Fig. 2 is spring, and other than springs, elastic supporting member for supporting optical member 4 can also be air bag, caoutchouc elasticity
The structures such as body.The number of elastic supporting member for supporting optical member 4 can be one or more.
When light guide 3 is made of rigid material, pressure-detecting device is changed by changing the deformation quantity of elastic supporting member for supporting optical member 4
Become the relative area size of second plane of incidence 31 ' and the first exit facet 11 ', light energy shifts gears dependent on elastic supporting member for supporting optical member 4
Deformation, so as to avoid present in the relevant technologies: because of caused by the performance change of optical material testing result inaccuracy
The problem of.
When light guide 3 is made of optical material, light energy, which shifts gears, depends on the deformation of elastic supporting member for supporting optical member 4,
The performance of optical material seldom is partly depended on, therefore shifts gears compared to light energy in the related technology and only relies upon light guide
The performance of material, the pressure-detecting device that the embodiment of the present disclosure provides are small to the performance dependence of optical material, in the property of optical material
When can change, the external force size of the electric signal reflection of optical detector output is more nearly with actually applied external force size.
Fig. 3 is a structural schematic diagram of the first light guide structure and light guide shown according to an exemplary embodiment.Such as Fig. 3
Shown, second plane of incidence 31 ' of light guide 3 is identical as the first exit facet 11 ' of the first light guide structure 1, is not affected by light guide 3
When external force, 11 ' face of second plane of incidence 31 ' and the first exit facet, i.e. second plane of incidence 31 ' is opposite with the first exit facet 11 '
Area is the area of second plane of incidence 31 ' or the first exit facet 11 ', wherein the first light guide structure 1 and light guide 3 are rigidity
Structure.When light guide 3 is by external force, elastic supporting member for supporting optical member is extruded, and light guide 3 generates displacement under external force, and second enters
The relative area for penetrating face 31 ' and the first exit facet 11 ' becomes smaller, and further, if the external force applied becomes larger, light guide 3 generates again
Displacement, elastic supporting member for supporting optical member continue to be extruded, and the relative area of second plane of incidence 31 ' and the first exit facet 11 ' continues to become smaller；If applying
The external force added becomes smaller, and elastic supporting member for supporting optical member restores certain deformation, and the reset of certain displacement occurs for light guide 3, second plane of incidence 31 ' and
The relative area of first exit facet 11 ' becomes larger.
Fig. 4 is another structural schematic diagram of the first light guide structure and light guide shown according to an exemplary embodiment.Such as
Shown in Fig. 4, the area of second plane of incidence 31 ' of light guide 3 is greater than the area of the first exit facet 11 ' of the first light guide structure 1, leads
When light part 3 is not affected by external force, the relative area of second plane of incidence 31 ' and the first exit facet 11 ' is maximum, and relative area goes out for first
Penetrate the area in face 11 ', wherein the first light guide structure 1 and light guide 3 are rigid structure.Light guide 3 generates under external force
The relative area of displacement, second plane of incidence 31 ' and the first exit facet 11 ' deforms, further, it is possible to by changing external force size,
Change the relative area size of second plane of incidence 31 ' and the first exit facet 11 '.
Fig. 5 is another structural schematic diagram of the first light guide structure and light guide shown according to an exemplary embodiment.Such as
Shown in Fig. 5, when light guide 3 is not affected by external force, second plane of incidence 31 ' is staggered with the first exit facet 11 ', and second plane of incidence 31 '
Connect with the first exit facet 11 ', when light guide 3 is not affected by external force, second plane of incidence 31 ' is opposite with the first exit facet 11 '
Area is zero, once light guide 3, by external force, second plane of incidence 31 ' is subjected to displacement, second plane of incidence 31 ' and the first exit facet
11 ' relative area is not zero.
Further, if external force becomes larger, elastic supporting member for supporting optical member continues to be extruded, second plane of incidence 31 ' and the first outgoing
The relative area in face 11 ' continues to become larger；If external force becomes smaller, elastic supporting member for supporting optical member restores certain deformation, second plane of incidence 31 '
Become smaller with the relative area of the first exit facet 11 '.
Fig. 3-Fig. 5 is illustrated to the positional relationship between the first light guide structure 1 and light guide 3, all to be suitable for this
Positional relationship between the first light guide structure 1 and light guide 3 of open design philosophy.
It is understood that the setting of the coefficient of elasticity K of relative area, elastic supporting member for supporting optical member 4 can satisfy pressure change
Demand.
In the pressure-detecting device that the embodiment of the present disclosure provides, the second light guide structure can be elastic construction；At this moment, second
Light guide structure is deformed under external force, and second plane of incidence generates displacement, so that second plane of incidence and the first exit facet
Relative area changes.
When external force size changes, the bending degree of the second light guide structure changes, second plane of incidence and the first exit facet
Relative area change, optical detector generates and the electric signal exported changes.In general, external force is bigger, second is guide-lighting
The deflection of structure is bigger, and external force is smaller, and the deflection of the second light guide structure is smaller.
Fig. 6 is another structural schematic diagram of pressure-detecting device shown according to an exemplary embodiment.As shown in fig. 6,
The pressure-detecting device includes the first light guide structure 1 and the second light guide structure 5, wherein the second light guide structure 5 is elastic construction；
When second light guide structure 5 is not affected by external force, the second light guide structure 5 is not bent, and the second of the second light guide structure 5 is incident
The relative area of first exit facet 11 ' of face 51 ' and the first light guide structure 1 is maximum；When second light guide structure 5 is by external force,
Bending is generated under external force, the relative area of second plane of incidence 51 ' and the first exit facet 11 ' becomes smaller；The external force size of application
When change, the bending degree of the second light guide structure 5 changes, second plane of incidence 51 ' of the second light guide structure 5 and the first leaded light
The relative area of first exit facet 11 ' of structure 1 changes.
Fig. 6 illustrates only pressure detecting for illustrating to the relationship of the first light guide structure 1 and the second light guide structure 5
Pressure can be arranged based on the design principle of the embodiment of the present disclosure in the first light guide structure 1 and the second light guide structure 5 that device includes
The other structures that force checking device includes.
In the pressure-detecting device that the embodiment of the present disclosure provides, there are many sources of the light of the first light guide structure of importing.
For example, pressure-detecting device further includes light source 5 shown in Fig. 2；First light guide structure 1 further includes first plane of incidence 12 '；Light source 5 is sent out
The light penetrated imports the first light guide structure 1 through first plane of incidence 12 ', to realize what pressure-detecting device was provided using light source 5
Light carries out pressure detecting.
Shown in Fig. 2, on the basis of pressure-detecting device includes light source 5, pressure-detecting device can also include convex lens
6, for convex lens 6 between light source 5 and first plane of incidence 12 ', light source 5 is located at the focal point of convex lens 6, convex lens 6 and light source 5
The distance between be equal to convex lens 61 times of focal length.Convex lens 6 is used to the divergent rays that light source 5 issues being converted into directional light
Line is convenient in light conduction to the first light guide structure 1, while also improving the utilization rate of light.
For another example, the first light guide structure 1 can also include reflecting surface, which is used to reflex to incident ambient
Inside first light guide structure 1, realize that pressure-detecting device carries out pressure detecting using ambient.
For example, Fig. 7 is the structural schematic diagram of the first light guide structure shown according to an exemplary embodiment.It, should shown in Fig. 7
Pressure-detecting device includes the first light guide structure 1, and the first light guide structure 1 is equipped with inclined-plane, covers a reflecting mirror 7 on inclined-plane, from
When right illumination is incident upon 7 mirror surface of reflecting mirror, natural light is reflected onto the first light guide structure 1, realizes that pressure-detecting device utilizes certainly
Right light carries out pressure detecting, saves using electric energy consumed by light source.
It can according to need the tilt angle of setting reflecting surface.For example, the incidence of reflecting mirror shown in Fig. 7 and ambient
Angle between direction is preferably 45 °.
In actual products, pressure-detecting device can include the reflecting mirror 7 in the light source 5 and Fig. 7 in Fig. 2 simultaneously, when
When natural light abundance, light source 5 is not turned on, and natural light reflexes in the first light guide structure 1 through reflecting mirror 7, is carried out using natural light
Pressure detecting；When natural light is inadequate, light source 5 is opened, carries out pressure detecting using the light that light source 5 emits.It is arranged simultaneously
Light source 5 and reflecting mirror 7, enrich light source, compared to the light for using light source 5 to emit always, save the power consumption of light source 5
Amount, reduces the cost of use of pressure checking device.
The pressure-detecting device that the embodiment of the present disclosure provides can also include light-blocking structure, and the light-blocking structure is for blocking not
Import the light of the first light guide structure.Since optical detector is to the light for exporting and importing second plane of incidence by the first exit facet
Light energy is detected, therefore the setting of the light-blocking structure, is avoided and is not imported the light conduction of the first light guide structure to second
In the plane of incidence, the accuracy of testing result ensure that.
For example, pressure-detecting device shown in Fig. 2 can also include light-blocking structure 8, light-blocking structure 8 is set in the first leaded light
In structure 1, for blocking the light energy for not importing the light of the first light guide structure 1.
In the pressure-detecting device that the embodiment of the present disclosure provides, optical detector includes light detection face, and light detection face is located at the
Second exit facet side of two light guide structures, in the case where the area in light detection face is greater than the area of the second exit facet, the pressure
Force checking device can also include light blocking part, which is covered on the part light detection face beyond the second exit facet, thus
The light energy for the light for avoiding optical detector from detecting outside the second light guide ensure that the accuracy of testing result.
The pressure-detecting device that the embodiment of the present disclosure provides can also include shell and pressure conduction structure, wherein shell
It is installed with the first light guide structure, the second light guide structure and optical detector, shell is equipped with mounting hole；One end of pressure conduction structure with
The connection of second light guide structure, the other end of pressure conduction structure are located in mounting hole, the external force that pressure conduction structure will be subject to
It is conducted to the second light guide structure.
The stress surface of pressure conduction structure can be flushed with housing outer surface, this kind of pressure conduction structure can guarantee shell
Outer surface is smooth.Alternatively, pressure conduction structure can stretch out mounting hole, the stress surface of pressure conduction structure slightly protrudes shell,
This kind of pressure conduction structure convenience and force object contact, convenient for being detected to external force.
For example, pressure-detecting device shown in Fig. 2 further includes shell 9 and pressure conduction structure 10, wherein pressure conduction knot
Structure 10 is fixed on light guide 3, and pressure conduction structure 10 includes stress surface 101 ', since the section of pressure conduction structure 10 is to fall
Trapezium structure, therefore stress surface 101 ' is larger, convenient for being bonded with position a to be detected, convenient for the progress of pressure detecting.Pressure conduction
The section of structure 10 can also be other suitable structures, such as square, cuboid in addition to inverted trapezoidal structure shown in Fig. 2.Make
When detecting human body vital sign (such as pulse wave) with the pressure-detecting device, by a (such as body surface artery in position to be detected of human body
Deng) be fitted on the stress surface 101 ' of pressure conduction structure 10.
The pressure-detecting device that the embodiment of the present disclosure provides can also include processing module, processing module and optical detector electricity
Connection, processing module are used to receive the electric signal of optical detector output and handle the electric signal.Processing module can be
The devices such as the mainboard of processor or integrated processor.For example, pressure-detecting device further includes mainboard 11, mainboard shown in Fig. 2
11 are electrically connected with optical detector 2, and mainboard 11 is used to receive the electric signal of the output of optical detector 2 and handles the electric signal.
There are many modes that processing module handles received electric signal, for example, processing module can will be received
Electric signal is sent to the equipment outside pressure-detecting device, is handled by the equipment electric signal, which can be according to telecommunications
Number determination is applied to the external force value on the second light guide structure, alternatively, the equipment can be after receiving at least two electric signals, root
According at least two electric signals, the external force value change information being applied on the second light guide structure is determined.External force value change information has more
Kind, for example, the same position in the second light guide structure applies different force, optical detector successively exports different electrical signals, handles
Module can multiple electric signals based on the received, determine the data such as external force value waveform, the external force value difference of the external force.
Alternatively, processing module can directly be applied according to electric signal determination after the electric signal for receiving optical detector output
The external force value being added on the second light guide structure, alternatively, processing module can be at least two electricity for receiving optical detector output
After signal, directly according at least two electric signals, the external force value change information of external force is determined, to realize pressure-detecting device root
External force value change information is determined according to the electric signal that optical detector exports.
Pressure-detecting device as shown in connection with fig. 2, to according to the determining external force being applied on the second light guide structure of electric signal
Value is illustrated.
It should be noted that in pressure-detecting device shown in Fig. 2, second plane of incidence 31 ' and first plane of incidence, 11 ' phase
Together, when light guide 3 is not affected by external force, the 11 ' face of the first exit facet of second plane of incidence 31 ' and the first light guide structure 1, i.e.,
The relative area of two planes of incidence 31 ' and the first exit facet 11 ' is the area of second plane of incidence 31 ' or the first exit facet 11 '.
Mainboard 11 determines that the process for the external force value being applied on light guide is as follows according to electric signal:
Firstly, the light energy that mainboard 11 is detected according to optical detector 2, second plane of incidence 31 ' and the of light guide 3 is calculated
The relative area A of first exit facet 11 ' of one light guide structure 1, calculation formula are as follows: A/Amax=I/Imax, wherein Imax is
First exit facet 11 ' is directed at the light energy that (face) photo detector 2 detects with second plane of incidence 31 '；Amax goes out for first
Relative area when penetrating face 11 ' and the second 31 ' face of the plane of incidence is (equal to the face of the first exit facet 11 ' or second plane of incidence 31 '
Product)；I is the currently detected light energy of optical detector 2；A is the first exit facet 11 ' and second plane of incidence 31 ' currently opposite
Area.
Secondly, mainboard 11 calculates the deformation quantity dL of elastic supporting member for supporting optical member 4 according to A, with the first exit facet 11 ' and second plane of incidence
For 31 ' are square face, the calculation formula of dL is as follows: dL=H-A/W, wherein H is the height of square face；W is square face
Width.
Again, mainboard 11 calculates external force F according to dL, and elastic supporting member for supporting optical member 4 is spring in Fig. 2, and the calculation formula of F is as follows: F=
K × dL, wherein k is the coefficient of elasticity of spring.
In actual products, it can be corrected by preparatory factory, determine the corresponding relationship between F and I, such as worked bent
Line, thus deviation caused by avoiding because of reasons such as techniques.On the basis of pressure-detecting device includes above-mentioned processing module, pressure
Detection device can also include memory module, and memory module is electrically connected with processing module, and memory module is for storing processing module
The electric signal and/or external force value change information of transmission realize the storage to electric signal and/or external force value change information.
On the basis of pressure-detecting device includes above-mentioned processing module, pressure-detecting device can also include sending mould
Block, sending module are electrically connected with processing module, and sending module is used for the pressure of the received electric signal of processing module and/or determination
Equipment (such as PC, cloud) outside to pressure-detecting device occurs for value change information.
There are many sending modules, such as wireless device, non-wireless means, non-wireless means need to configure data-interface, as USB connects
Mouth, Type-C interface etc., wireless device include blue-tooth device, NFC device, WiFi device etc..When for wireless device, the pressure
Force checking device can be sent data to mobile terminal (such as mobile phone, plate), and mobile terminal passes through related application for above-mentioned letter
Breath shows (forms such as display screen and/or voice broadcast).
On the basis of pressure-detecting device includes above-mentioned processing module, pressure-detecting device can also include output mould
Block, output module are electrically connected with processing module, and output module is used to export external force value change information to user, are realized defeated to user
External force value change information out.There are many output modules, for example, output module may include at least one of following: display screen, audio
Playing device etc..
On the basis of pressure-detecting device includes above-mentioned processing module, pressure-detecting device can also include charging interface
And power storage module, wherein charging interface is electrically connected with power storage module, and charging interface is used to cooperate with the charging plug of power supply unit
It uses, charges to power storage module；Power storage module and processing module, optical detector, memory module, sending module, output module electricity
Connection, power storage module are used to power to processing module, optical detector, memory module, sending module, output module.Power storage module
With the setting of charging interface, the electric power storage and power supply of pressure-detecting device are realized.
Charging interface can be same interface with above-mentioned data-interface, be also possible to the interface being separately provided.For example, Fig. 2
Shown in pressure-detecting device further include interface 12, interface 12 is used as data-interface and charging interface, by data-interface with
Charging interface is set as same interface, reduces interface number, simplifies pressure-detecting device structure.When charging interface is independent
When the interface of setting, the use of data-interface is not influenced when charging using charging interface, ensure that the normal of pressure-detecting device
It uses.Power storage module can be battery.
By taking pressure-detecting device disclosed in the present application is for vital sign detection as an example, pressure-detecting device is used for
In sensor in the sensor of sign data detection, such as arterial pulse wave detection.When optical detector 2 detects luminous energy
When measuring I, external force F can be obtained (for example, generating external force F by the light energy I detected according to the corresponding relationship of external force F and I
Curve graph), and then processing module can analyze external force F, the related data needed.
For example, wearable device shown in Fig. 8 includes: to wear structure b and the sensor c for arterial pulse wave detection,
Sensor c is the pressure-detecting device of the above-mentioned offer of the embodiment of the present disclosure, alternatively, sensor c is mentioned by the embodiment of the present disclosure is above-mentioned
The pressure-detecting device of confession is made, and on wearing structure b, wearing structure b can be wrist strap, watchband or wrist guard for sensor c setting
Deng.
When user wears the wearable device, wrist d, which is protruded into, to be worn in structure b, radial artery d1 and sensor on wrist d
The pressure conduction structure of c contacts, and sensor c detects the pulse wave signal in radial artery d1, and then calculates the heart by pulse wave signal
The human bodies physiologic informations such as rate, heart rate variability rate and blood pressure.
Based on the design feature of wearable device shown in Fig. 8, allow user by wear the wearable device into
The test of row pulse wave obtains pulse wave signal, and the heart rate, heart rate variability rate and the blood pressure that calculate according to pulse wave signal
Equal human bodies physiologic information has the characteristics that test operation is simple, is tested whenever and wherever possible, and the conditions such as tested person place do not limit
System.
Embodiment of the present disclosure second aspect provides a kind of terminal, including the dress of pressure detecting provided by above-mentioned first aspect
It sets.Wherein, which can be intelligent wearable devices, the medical treatment detection devices such as bracelet etc., and the embodiment of the present disclosure does not do specific limit
It is fixed.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.The disclosure is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
Claims (14)
1. a kind of pressure-detecting device, which is characterized in that including the first light guide structure, the second light guide structure and optical detector；Institute
Stating the first light guide structure includes the first exit facet；Second light guide structure includes second plane of incidence；
First light guide structure, for transmitting light to second light guide structure；
Second light guide structure is arranged to generate displacement or deformation under external force, so that second plane of incidence and institute
The relative area for stating the first exit facet changes；
The optical detector, is connected to second light guide structure, and detection imports the luminous energy of the light of second light guide structure
Amount.
2. the apparatus according to claim 1, which is characterized in that second light guide structure includes:
Light guide, including second plane of incidence and the side being connect with second plane of incidence；
Elastic supporting member for supporting optical member is connected to the side；
The light guide generates the displacement under the external force, so that second plane of incidence and first exit facet
Relative area change.
3. the apparatus of claim 2, which is characterized in that when the light guide is not affected by external force, described second is incident
Face and first plane of incidence are at least partly opposite, alternatively, second plane of incidence is staggered with first plane of incidence.
4. the apparatus according to claim 1, which is characterized in that second light guide structure is elastic construction；
Second light guide structure generates the deformation under the external force, and second plane of incidence generates the displacement,
So that the relative area of second plane of incidence and first exit facet changes.
5. the apparatus according to claim 1, which is characterized in that described device further include:
Light source；
First light guide structure includes first plane of incidence；
The light of the light source transmitting imports first light guide structure through first plane of incidence.
6. device according to claim 5, which is characterized in that described device further include:
Convex lens, between the light source and first plane of incidence, the light source is located at the focal point of the convex lens.
7. the apparatus according to claim 1, which is characterized in that first light guide structure further include for will be incident it is outer
Boundary's light reflexes to the reflecting surface inside first light guide structure.
8. the apparatus according to claim 1, which is characterized in that described device further includes not importing described first for blocking
The light-blocking structure of the light of light guide structure.
9. the apparatus according to claim 1, which is characterized in that described device further include:
Shell, is installed with first light guide structure, second light guide structure and the optical detector, and the shell is equipped with peace
Fill hole；
Pressure conduction structure, one end are connect with second light guide structure, and the other end is located in the mounting hole.
10. the apparatus according to claim 1, which is characterized in that described device further include:
Processing module, the processing module are electrically connected with the optical detector, for receiving the optical detector according to detecting
The light energy electric signal that generates and export, send the electric signal to the equipment outside the pressure-detecting device, and/
Or, according at least two electric signals, determining the external force value variation letter of external force after receiving at least two electric signals
Breath.
11. device according to claim 10, which is characterized in that described device further includes at least one of following:
Memory module is electrically connected with the processing module, the external force value variation letter sent for storing the processing module
Breath；
Sending module is electrically connected with the processing module, is used for the received electric signal of the processing module and/or determination
The external force value change information be sent to the equipment outside the pressure-detecting device.
12. device according to claim 10, which is characterized in that described device further includes output module；
The output module is electrically connected with the processing module, for exporting the external force value change information to user.
13. device according to claim 10, which is characterized in that described device further includes charging interface and power storage module:
The charging interface is electrically connected with the power storage module, is used cooperatively for the charging plug with power supply unit, to described
Power storage module charging；
The power storage module is electrically connected with the processing module, for energizing to the processing module.
14. a kind of terminal, which is characterized in that including pressure-detecting device of any of claims 1-13.
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| CN201910514368.2A CN110174200A (en) | 2019-06-14 | 2019-06-14 | Pressure-detecting device, terminal |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09243489A (en) * | 1996-03-06 | 1997-09-19 | Yazaki Corp | Optical pressure sensor |
| JP2008175587A (en) * | 2007-01-16 | 2008-07-31 | Keiji Iimura | Method and device for measuring surface characteristic of object using stress-luminescent material, apparatus for identifying authenticity and kind of security article, apparatus for measuring surface characteristic of human body, and stress-luminescent sensor |
| CN102144917A (en) * | 2006-05-24 | 2011-08-10 | 泰瑞连激光技术有限公司 | Optical vital sign detection method and measurement device |
| CN106333657A (en) * | 2016-10-09 | 2017-01-18 | 京东方科技集团股份有限公司 | Photoelectric sensor, control method thereof and pulse detector |
| CN108064146A (en) * | 2016-12-30 | 2018-05-22 | 深圳配天智能技术研究院有限公司 | Pressure array detection equipment, corresponding method and diagnosis by feeling the pulse detection device |
| CN108514407A (en) * | 2018-05-14 | 2018-09-11 | 深圳市深光谷科技有限公司 | A kind of contactless pulse measurement device |
| CN108885506A (en) * | 2016-04-05 | 2018-11-23 | 希迪普公司 | Pressure sensor, containing its touch input device and with its pressure detection method |
| CN109074186A (en) * | 2016-04-08 | 2018-12-21 | 希迪普公司 | Constitute multiple channels pressure sensor, containing its touch input device and utilize its pressure detection method |
| CN109141491A (en) * | 2018-09-29 | 2019-01-04 | 成都凯天电子股份有限公司 | Pressure-type optical fiber is slightly variable sensor |
| CN210426838U (en) * | 2019-06-14 | 2020-04-28 | 安徽华米信息科技有限公司 | Pressure detection device and terminal |
-
2019
- 2019-06-14 CN CN201910514368.2A patent/CN110174200A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09243489A (en) * | 1996-03-06 | 1997-09-19 | Yazaki Corp | Optical pressure sensor |
| CN102144917A (en) * | 2006-05-24 | 2011-08-10 | 泰瑞连激光技术有限公司 | Optical vital sign detection method and measurement device |
| JP2008175587A (en) * | 2007-01-16 | 2008-07-31 | Keiji Iimura | Method and device for measuring surface characteristic of object using stress-luminescent material, apparatus for identifying authenticity and kind of security article, apparatus for measuring surface characteristic of human body, and stress-luminescent sensor |
| CN108885506A (en) * | 2016-04-05 | 2018-11-23 | 希迪普公司 | Pressure sensor, containing its touch input device and with its pressure detection method |
| CN109074186A (en) * | 2016-04-08 | 2018-12-21 | 希迪普公司 | Constitute multiple channels pressure sensor, containing its touch input device and utilize its pressure detection method |
| CN106333657A (en) * | 2016-10-09 | 2017-01-18 | 京东方科技集团股份有限公司 | Photoelectric sensor, control method thereof and pulse detector |
| CN108064146A (en) * | 2016-12-30 | 2018-05-22 | 深圳配天智能技术研究院有限公司 | Pressure array detection equipment, corresponding method and diagnosis by feeling the pulse detection device |
| CN108514407A (en) * | 2018-05-14 | 2018-09-11 | 深圳市深光谷科技有限公司 | A kind of contactless pulse measurement device |
| CN109141491A (en) * | 2018-09-29 | 2019-01-04 | 成都凯天电子股份有限公司 | Pressure-type optical fiber is slightly variable sensor |
| CN210426838U (en) * | 2019-06-14 | 2020-04-28 | 安徽华米信息科技有限公司 | Pressure detection device and terminal |
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