WO2019000372A1 - 生物特征检测装置及电子终端 - Google Patents

生物特征检测装置及电子终端 Download PDF

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Publication number
WO2019000372A1
WO2019000372A1 PCT/CN2017/091042 CN2017091042W WO2019000372A1 WO 2019000372 A1 WO2019000372 A1 WO 2019000372A1 CN 2017091042 W CN2017091042 W CN 2017091042W WO 2019000372 A1 WO2019000372 A1 WO 2019000372A1
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WO
WIPO (PCT)
Prior art keywords
light
unit
light emitting
receiving unit
emitting unit
Prior art date
Application number
PCT/CN2017/091042
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English (en)
French (fr)
Inventor
杨旺旺
Original Assignee
深圳市汇顶科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2017/091042 priority Critical patent/WO2019000372A1/zh
Priority to EP18773062.7A priority patent/EP3449826A4/en
Priority to PCT/CN2018/093807 priority patent/WO2019001580A1/zh
Priority to CN201880004181.1A priority patent/CN109922731B/zh
Priority to US16/151,314 priority patent/US11304615B2/en
Publication of WO2019000372A1 publication Critical patent/WO2019000372A1/zh

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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
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • A61B5/02427—Details of sensor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head
    • A61B5/6815—Ear
    • A61B5/6817—Ear canal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
    • A61B2562/164—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted in or on a conformable substrate or carrier
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
    • A61B2562/166—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted on a specially adapted printed circuit board
    • 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
    • A61B5/14551—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 for measuring blood gases

Definitions

  • the embodiments of the present invention relate to the field of biometric detection technologies, and in particular, to a biometric detection device and an electronic terminal.
  • the commonly used methods are: measuring the biological characteristics based on the optical principle, such as the principle of light reflection and the principle of light projection, taking the principle of light reflection as an example: after the light emitter is incident on the biological tissue Reflected, the light receiver receives the reflected light, and detects the biological characteristics based on the reflected light.
  • the incident light is reflected by the action of the blood in the tissue (absorption, scattering) to form reflected light, due to the blood in the tissue. Periodic changes occur, and biometrics are obtained by sensing and analyzing the reflected light.
  • the projected light is sensed and analyzed to obtain biological features.
  • the relative position between the light emitter and the light receiver is usually fixed, and therefore, the adjustment between the light emitter and the light receiver cannot be adjusted. Relative position to achieve accurate monitoring of biometrics.
  • the purpose of the embodiments of the present application is to provide a biometric detecting device and an electronic terminal for solving at least the above problems in the prior art.
  • an embodiment of the present application provides a biometric detecting apparatus, including: a light emitting unit, a light receiving unit, and a flexible component, wherein the light emitting unit and the light receiving unit pass the a flexible member connected to emit light to the biological tissue, the light emitting The light emitted by the firing unit is processed by the biological tissue and directed to the light receiving unit, the light receiving unit is configured to receive the light processed by the biological tissue and perform photoelectric conversion to generate a biometric feature for detecting The original electrical signal, the relative position and/or relative angle between the light emitting unit and the light receiving unit is adjusted by the flexible member.
  • the method further includes: an optical blocking unit configured to block or absorb the light emitted by the light emitting unit to prevent the light emitted by the light emitting unit from being Directly reaching the optical receiving unit after the tissue processing; and/or further comprising: a light guiding unit for guiding the light emitted by the light emitting unit to the detecting surface of the biological tissue and/or guiding the living organism The processed light is organized to the light receiving unit.
  • the optical shielding unit and the light guiding unit are in a unitary structure, or the optical shielding unit and the light guiding unit are in a split structure.
  • the light emitting unit and the light receiving unit are respectively provided with a light guiding unit, the light guiding unit on the light emitting unit and the light receiving unit
  • the light guiding unit is a unitary structure or a separate structure.
  • a surface shape of the light guiding unit and/or the optical blocking unit matches a shape of a detecting surface of the biological tissue.
  • the method further includes: a processing circuit, configured to perform analog-to-digital conversion on the original electrical signal to form a digital signal, and perform filtering processing on the digital signal; and Or, it further includes: a control circuit for controlling the light emitting unit to emit light to the biological tissue.
  • the method further includes: a processor, configured to perform detection of the biometric according to the original electrical signal.
  • the relative position is a linear distance between the light emitting unit and a geometric center of the light receiving unit, wherein the relative angle is the light emitting unit and The normal angle between the planes where the light receiving units are located.
  • the biometric is a heart rate characteristic or a blood oxygen characteristic based on a photoplethysmographic signal.
  • the biological tissue is an ear
  • the light receiving unit and/or the light emitting unit is attached to an inner area of the tragus when performing biometric detection; or And the light receiving unit and/or the light emitting unit are in contact with an area between the lower leg of the ear wheel and the foot of the ear wheel; or the light receiving unit and/or the light emitting unit and the pair of the ear wheel and the ear wheel
  • the light receiving unit and/or the light emitting unit are attached to the ear boat area; or the light receiving unit and/or the light emitting unit is attached to the earlobe area;
  • the light receiving unit and/or the light emitting unit are located in the ear cavity region; or the light receiving unit and/or the light emitting unit is located at a pair of the ear wheel, the ear hole, and the pair of tragus The area enclosed by the ear wheel.
  • the light emitting unit is located between the tragus and the outer ear hole; or The light emitting unit is attached to the inner area of the tragus, and the light receiving unit is located between the tragus between the tragus and the connecting area under the outer ear opening.
  • the method further includes: a wearing auxiliary mechanism, the light receiving unit and the light emitting unit are disposed on the wearing auxiliary mechanism, so that the light receiving unit and the The light emitting unit is disposed at an area between the lower leg and the leg of the wheel; or such that the light receiving unit and the light emitting unit are disposed in a region between the pair of the ear wheel and the leg wheel.
  • the method further includes: an elastic unit that causes the light emitting unit and the light receiving unit to closely fit the biological tissue when performing biometric detection .
  • the embodiment of the present application further provides an electronic terminal, comprising the detecting device according to any one of the above.
  • the light emitting unit and the light receiving unit are connected by the flexible member, and the light emitting unit is configured to emit light to the biological tissue, and the light emitting unit emits The light is processed by the biological tissue and directed to the light receiving unit, the light receiving unit is configured to receive the light processed by the biological tissue and perform photoelectric conversion to generate an original electrical signal for performing biometric detection.
  • the relative position and/or relative angle between the light emitting unit and the light receiving unit are adjusted by the flexible member, thereby achieving accurate monitoring of the biological features.
  • FIG. 1 is a schematic structural diagram of a biological characteristic detecting apparatus according to Embodiment 1 of the present application.
  • FIG. 2 is a schematic structural diagram of a biological feature detecting apparatus according to Embodiment 2 of the present application.
  • FIG. 3 is a schematic structural diagram of a biological feature detecting apparatus according to Embodiment 3 of the present application.
  • FIG. 4 is a schematic diagram of candidate regions of a detecting surface of an ear according to Embodiment 4 of the present application.
  • FIG. 5A and FIG. 5B are schematic diagrams of the sample detection signal in the inner region of the otoscope of the fifth embodiment of the present application before and after filtering;
  • FIG. 6 is a schematic diagram of wearing a headset on an ear according to Embodiment 6 of the present application.
  • FIG. 7 is a schematic diagram of wearing a headset on an ear according to Embodiment 7 of the present application.
  • Figure 8 is a schematic view showing the wearing of the earphone on the ear according to the eighth embodiment of the present application.
  • FIG. 9 is a schematic diagram of wearing a headset on an ear according to Embodiment 9 of the present application.
  • FIG. 10 is a schematic diagram of wearing a headset on an ear according to Embodiment 10 of the present application.
  • FIG. 11 is a schematic diagram of wearing an earphone on an ear according to Embodiment 11 of the present application.
  • FIG. 12 is a schematic diagram of wearing an earphone on an ear according to Embodiment 12 of the present application.
  • FIG. 13 is a schematic diagram of the wearing of the earphone on the ear according to the thirteenth embodiment of the present application.
  • Figure 14 is a schematic view showing the wearing of the earphone on the ear in the fourteenth embodiment of the present application.
  • Figure 15 is a schematic view showing the wearing of the earphone on the ear in the fifteenth embodiment of the present application.
  • 16 is a schematic view showing the connection between the incision between the ear screen and the outer opening of the mouth in the sixteenth embodiment of the present application;
  • the light emitting unit and the light receiving unit are connected by the flexible member, and the light emitting unit is configured to emit light to the biological tissue, and the light emitting unit The emitted light is processed by the biological tissue and directed to the light receiving unit, and the light receiving unit is configured to receive the light processed by the biological tissue and perform photoelectric conversion to generate a raw
  • the original electrical signal detected by the feature, the relative position and/or the relative angle between the light emitting unit and the light receiving unit are adjusted by the flexible member, thereby achieving accurate monitoring of the biological feature.
  • the biometric detecting device 1 is also referred to as a biometric detecting device.
  • the biometric detecting device includes a light emitting unit 101 and light receiving.
  • the light emitting unit 101 is configured to emit light to the biological tissue
  • the light receiving unit 102 receives the light processed by the biological tissue and performs photoelectric conversion to generate an original electrical signal for performing biometric detection.
  • the biometric detecting device may further include: a hard substrate 103, and the light emitting unit 101 and the light receiving unit 102 are all disposed on the rigid substrate 103.
  • the biometric detecting device may further include: an optical blocking unit 104 configured to block or absorb the light emitted by the light emitting unit without directly reaching the optical receiving unit without the biological tissue In addition, the light emitted by the light emitting unit directly reaches the noise caused by the optical receiving unit, thereby increasing the accuracy of the detection.
  • an optical blocking unit 104 configured to block or absorb the light emitted by the light emitting unit without directly reaching the optical receiving unit without the biological tissue.
  • the light emitted by the light emitting unit directly reaches the noise caused by the optical receiving unit, thereby increasing the accuracy of the detection.
  • the biometric detecting device may further include a light guiding unit 105, configured to guide the light emitted by the light emitting unit to the detecting surface of the biological tissue and/or to guide the biological tissue.
  • the processed light is sent to the light receiving unit.
  • the light guiding unit 101 and the light receiving unit 102 may be provided with the light guiding unit 105, that is, the biological feature detecting device includes two light guiding units 105, and the two light guiding units 105 may be an integrated structure or a separate structure. That is, the light guiding unit 105 on the light emitting unit 101 and the light guiding unit 105 on the light receiving unit 102 are of a unitary structure or a separate structure.
  • a light guiding unit 105 may be provided only for the light emitting unit 101 or the light receiving unit 102, that is, the biometric detecting device includes a light guiding unit 105.
  • the presence of the light guiding unit 105 improves the efficiency of light transmission, reduces the overall power consumption of the device, and improves the accuracy of detection.
  • the optical blocking unit 104 and the light guiding unit 105 are integrated, or the optical blocking unit 104 and the guide
  • the light unit 105 is a split structure.
  • the surface shape of the light guiding unit 105 and the optical blocking unit 104 facing the detecting surface is set to match the detecting surface of the biological tissue. If the detecting surface is a plane, the surface of the light guiding unit 105 and the optical blocking unit 104 facing the detecting surface is a plane; if the detecting surface is a curved surface, the light guiding unit 105 and the optical blocking unit The surface of the 104 facing the detecting surface is a curved surface; if the detecting surface is an irregular curved surface, the surface of the light guiding unit 105 and the optical blocking unit 104 facing the detecting surface is also an irregular curved surface. It should be noted that only the surface shape of the light guiding unit 105 or the optical shielding unit 104 facing the detecting surface may be set to match the detecting surface of the biological tissue according to the needs of the structural design.
  • the biometric detecting apparatus may further include: a processing circuit, configured to perform analog-to-digital conversion on the original electrical signal to form a digital signal and The digital signal is subjected to filtering processing; and/or, further comprising: a control circuit for controlling the light emitting unit to emit light to the biological tissue.
  • processing circuit can be expanded according to actual needs, and is not limited to analog-to-digital conversion and filtering processing.
  • the biometric detecting apparatus may further include: a processor, configured to perform biometric detection according to the original electrical signal.
  • the processor performs biometric detection according to the original electrical signal
  • the biometric signal may be extracted from the digital signal subjected to analog-to-digital conversion and filtering after the processing circuit; or directly, the processor directly
  • the biosignal signal is detected after the electrical signal is subjected to analog-to-digital conversion, filtering processing, and the like.
  • the processor may be a separately added microprocessor, or may share a processor of a terminal connected to the earphone.
  • FIG. 2 is a schematic structural diagram of a biometric detecting device according to Embodiment 2 of the present application; as shown in FIG. 2, in the embodiment, an exploded structure diagram is taken as an example, and the biometric detecting device is also included in the same manner as the above-described embodiment of FIG.
  • the light emitting unit 101 and the light receiving unit 102 are different from the above embodiments in that the biometric detecting device comprises: a flexible member 106 and two substrates, wherein the two substrates are a first substrate 107 and a second substrate 108, respectively.
  • the light emitting unit 101 is disposed on the first substrate 107, and the light receiving unit 102 is disposed at the On the second substrate 108.
  • the first substrate 107 and the second substrate 108 are both rigid substrates
  • the flexible member 106 is a flexible circuit board.
  • the light emitting unit 101 and the light receiving unit 102 may alternatively be disposed on the same rigid substrate or flexible substrate.
  • the light emitting unit 101 is approximately a column light source
  • the light receiving unit 102 is approximately a planar array to receive light with a large light sensing area as much as possible.
  • the light emitting unit 101 and the light receiving unit 102 are connected by the flexible member 106, and the flexible member is used to adjust between the light emitting unit 101 and the light receiving unit 102. Relative position and / or relative angle.
  • the relative position is a linear distance between the geometric center of the light emitting unit 101 and the light receiving unit 102, and/or the relative angle is the light emitting unit.
  • the normal line of the light receiving unit 102 toward the outer surface of the detecting surface is parallel to the normal of the detecting surface; and/or the light emitting unit 101 is oriented.
  • the normal to the outer surface of the detection surface is parallel to the normal to the detection surface.
  • one of the first substrate and the second substrate is a flexible substrate or both are flexible substrates.
  • the flexible portion may be a partial structure of the flexible substrate.
  • the light emitting unit 101 and the light receiving unit 102 may be physically separated from the processing circuit, or integrated with the processing circuit, the control circuit, and the processor.
  • the light emitting unit 101, the light receiving unit 102, the processing circuit, and the MCU are physically separated from each other, and may be integrated to form a chip structure.
  • the biometric detecting device may include a plurality of light emitting units and a light receiving unit to improve the emission efficiency of the light.
  • the biometric detecting device may include a plurality of light receiving units and a light receiving unit to improve light receiving efficiency.
  • the relative position and the relative angle between the light emitting unit and the light receiving unit can be arbitrarily adjusted due to the presence of the flexible member, so that the biometric detecting device as a whole can be applied to the detecting surface of any shape.
  • the quality of the original electrical signal is improved.
  • the relative position and the relative angle between the light emitting unit and the light receiving unit are adjusted, so that the structure of the earphone product is relatively compact.
  • FIG. 3 is a schematic structural diagram of a biometric detecting device according to Embodiment 3 of the present application; in this embodiment, the biometric detecting device 1 is implemented in the form of an earphone, or can be understood as integrating the illustrated biometric detecting device into an existing In the earphone structure, in order to clearly illustrate the application of the biometric detecting device, the ear 2 as a biological tissue is simultaneously illustrated in FIG.
  • the biometric feature is detected by the earphone structure, the positional relationship between the light emitting unit and the light receiving unit and the detecting surface on the ear is as described in the following embodiments.
  • the detecting surface is set at the following positions, the structural changes of the conventional earphone are small at the same time, and the wearing comfort is good.
  • FIG. 4 is a schematic view of a candidate area of a detecting surface of an ear according to Embodiment 4 of the present application; as shown in FIG. 4, corresponding to FIG. 3, some features of the ear 2 include: a wheel 201, a pair of ear wheels 202, an ear 203, and an ear.
  • the biometric detecting device is realized by taking the specific product form of the earphone as an example.
  • the different characteristic regions of the ear are After comprehensive analysis of arterial branches, venous branches, and flatness, the arterial branches and vein branches are dense, and the flattened characteristic area is used as the detection surface.
  • the light emitting unit and/or the light receiving unit are disposed on the inner area of the tragus 211, or the connecting line between the tragus between the tragus 212 and the outer ear opening 210, and the ear 203
  • the biometric detection device has better compatibility with different user ears, so that the detection signal with high signal to noise ratio is relatively easy to be generated, and the biometric detection accuracy is ensured.
  • the light emitting unit and the light receiving unit are disposed in a region D surrounded by the ear wheel, the ear hole, and the pair of the ear wheel, the light emitting unit and the light receiving unit in the biometric detecting device.
  • the detection surface is closely attached. Since the positional arteriovenous distribution is concentrated, the original electrical signal obtained is relatively large in signal-to-noise and the original electrical signal has strong anti-interference performance, which further ensures the accuracy of biometric detection.
  • the ears of different shapes are less different in the area D, if the biometric detecting device is integrated into the earphone, the compatibility of the earphone to the ear can be made better, the earphone has a wider application range, and the earphone is various. The user's signal detection is more accurate.
  • FIG. 5A and FIG. 5B are schematic diagrams of the sample original electrical signal in the inner region of the otoscope of the fifth embodiment of the present application before and after filtering; as shown in FIGS. 5A and 5B, the original electrical signal changes relatively smoothly, and the quality thereof is high.
  • the arterial branch, the venous branch, and the flatness in the inner region of the tragus 212 conform to the condition as the detecting surface.
  • FIG. 6 is a schematic diagram of wearing the earphone on the ear according to Embodiment 6 of the present application; as shown in FIG. 6, in the embodiment, when the biometric detection is performed, the light receiving unit 102 and the light emitting unit 101 and the ear are The inner area of the screen 212 is attached. Specifically, the light receiving unit 102 can be made to be attached when the light receiving unit 102 and the light emitting unit 101 are attached to the inner area of the tragus 212 by a reference line R. And the geometric center of the light emitting unit 101 is located on the reference line R.
  • the light receiving unit 102 and the light emitting unit 101 and the inner region of the tragus 212 are seamlessly fitted as much as possible. .
  • the light receiving unit 102 and the light emitting unit 101 may be integrated after the earphone is worn.
  • the housing position that can be attached to the inner region of the tragus 212 does not require any additional mechanism, so that the biometric detecting device including the light receiving unit 102 and the light emitting unit 101 is integrally attached to the inner region of the tragus. Hehe.
  • FIG. 7 is a schematic diagram of the wearing of the earphone on the ear according to the seventh embodiment of the present application; as shown in FIG. 7, in the embodiment, the same as the sixth embodiment of FIG. 6 described above, although the light is detected during biometric detection.
  • Receiving unit 102 And the light emitting unit 101 and the inner region of the tragus are attached, but the specific bonding position in the inner region of the tragus 212 is away from the outer ear opening, and the distribution of the arterial branches and the vein branches in the inner region of the tragus 212 is dense.
  • the flatness is better, that is, the light receiving unit 102 and the light emitting unit 101 are as close as possible to the inner side of the tragus.
  • the light receiving unit 102 and the light emitting unit 101 in order to make the light receiving unit 102 and the light emitting unit 101 fit the inner area of the tragus 212, the light receiving unit 102 and the The light emitting unit 101 is integrated at a housing position that can be attached to the inner area of the tragus 212 after the earphone is worn, without adding any auxiliary mechanism, so that the biometric detection including the light receiving unit 102 and the light emitting unit 101 is performed.
  • the device as a whole fits snugly to the inner region of the tragus.
  • FIG. 8 is a schematic diagram of the wearing of the earphone on the ear according to the eighth embodiment of the present invention. As shown in FIG. 8 , in the embodiment, as in the above FIG. 6 , when the biometric detection is performed, the light receiving unit 102 and the light receiving unit 102 are The inner area of the tragus is attached, and the light emitting unit 101 is further located in the connecting area between the tragus and the outer ear opening and at the same time, and is attached to the characteristic area surrounded by the tragus, the tragus and the tragus.
  • the light distribution unit 102 and the light emitting unit 101 are ensured because the inner region of the tragus 212 and the anterior tragus and the outer ear opening are connected to each other, and the venous branches are densely distributed and the flatness is good. Seamlessly fit the ear as much as possible.
  • the light emitting unit 101 is in contact with the inner area of the tragus, and the light receiving unit 102 is further located in the tragus and the outer ear opening connection area and simultaneously with the tragus and the pair.
  • the characteristic areas surrounding the tragus and the tragus are matched.
  • the tragus between the tragus and the outer ear opening connection area in order to make the light receiving unit 102 and the light emitting unit 101 closely match the inner area of the tragus 212, the tragus between the tragus and the outer ear opening connection area.
  • the light receiving unit 102 and the light emitting unit 101 can be integrated into a housing position that can be attached to the inner area of the tragus 212 after the earphone is worn, and the tragus between the tragus and the outer ear opening. At the position of the housing, it is not necessary to add any auxiliary mechanism, so that the biometric detecting device including the light receiving unit 102 and the light emitting unit 101 as a whole is in close contact with the ear.
  • FIG. 9 is a schematic diagram of wearing the earphone on the ear according to the ninth embodiment of the present invention. As shown in FIG. 9, in the embodiment, the light emitting unit 101 and the light receiving unit 102 are both located between the tragus and the outer ear. Portal connection area The domain is simultaneously attached to the feature area surrounded by the tragus, the tragus, and the tragus.
  • the light in order to make the light receiving unit 102 and the light emitting unit 101 closely match the tragus between the tragus and the outer ear opening, the light may be
  • the receiving unit 102 and the light emitting unit 101 are integrated at a housing position that can be attached to the tragus and the outer ear opening connection area after the earphone is worn, without adding any auxiliary mechanism, so that the light receiving unit 102 is included.
  • the biometric detecting device of the light emitting unit 101 as a whole is in close contact with the inner region of the tragus.
  • FIG. 10 is a schematic diagram of wearing the earphone on the ear according to the tenth embodiment of the present invention. As shown in FIG. 10, the light receiving unit 102 and the light emitting unit 101 are in contact with an area between the lower leg of the ear wheel and the leg of the ear wheel.
  • the earphone may further include: a wearing assisting mechanism 110, the light receiving unit 102 and the light emitting unit 101 are disposed on the wearing assisting mechanism 110, so that the light receiving unit 102 and the light The transmitting unit 101 is in contact with the area between the pair of the lower leg and the leg of the ear.
  • the light receiving unit 102 and the light emitting unit 101 are in contact with an area between the ear wheel and the ear wheel.
  • the wearing aid 110 and the earphone may be detachable to assemble the wearing aid 110 to the earphone when biometric detection is required, and to wear the accessory when biometric detection is not required.
  • the structure 110 is detached from the earphone to facilitate flexible use of the earphone and the wearing aid 110.
  • the wearing auxiliary mechanism 110 may be fixed at one end to the outer casing of the earphone, and at the other end, the light receiving unit 102 and the light emitting unit 101.
  • FIG. 11 is a schematic diagram of the earphones worn on the ear according to the eleventh embodiment of the present invention; as shown in FIG. 11, in the embodiment, the light receiving unit 102 and the light emitting unit 101 are all attached to the ear boat area; In other embodiments, one of the light receiving unit 102 and the light emitting unit 101 is in contact with the ear boat area.
  • the detection of biological features is performed based on the principle of light reflection. But need It is noted that the position of the light emitting unit 101 or the light receiving unit 102 can be adjusted accordingly to detect the biological features based on the principle of light projection.
  • the light receiving unit 102 is attached to the ear boat area
  • the light emitting unit 101 is attached to the ear area corresponding to the ear boat area, and correspondingly, the biological characteristics can be performed based on the light projection principle. Detection.
  • FIG. 12 is a schematic diagram of the earphones worn on the ear according to the twelfth embodiment of the present application; as shown in FIG. 12, the light receiving unit 102 and the light emitting unit 101 are all attached to the earlobe region.
  • the light receiving unit 102 and the light emitting unit 101 may be disposed on the same side of the earlobe region, and correspondingly, the detection of the biological feature may be performed based on the principle of light reflection.
  • the detection of the biological feature can be performed based on the light projection principle.
  • FIG. 13 it is a tenth embodiment of the present application.
  • the three-headed headset is worn on the ear.
  • FIG. 14 is a schematic diagram of wearing the earphone on the ear according to the fourteenth embodiment of the present application; as shown in FIG. 14, different from the above embodiment, three pairs of light emitting units 101 and a light receiving unit 102 are disposed on the earphone. Specifically, as shown in FIG. 14, a pair of light emitting units 101 and a light receiving unit 102 are respectively disposed in an inner region of the tragus, a region between the lower leg and the ear of the ear, and an ear clip cavity region.
  • FIG. 15 is a schematic diagram of wearing the earphone on the ear according to the fifteenth embodiment of the present application; as shown in FIG. 15, in the embodiment of the present invention, an elastic unit 109 is added, and the elastic unit 109 makes the biometric detection The light emitting unit 101 and the light receiving unit 102 are in close contact with the detecting surface of the ear.
  • an elastic unit is added on the basis of the embodiment shown in FIG. 5. As shown in FIG. 15, the elastic unit 109 is disposed at an area around the ear away from the outer ear opening, so that the light emitting unit 101 can be squeezed. And the light receiving unit 102 is in close contact with the detecting surface of the ear.
  • the elastic unit 109 may also be pressed only to one of the light emitting unit 101 and the light receiving unit 102 such that the extruded light emitting unit 101 or the light receiving unit 102 is in close contact with the detecting surface of the ear.
  • the biometric detecting device and the detecting surface can be prevented from being prevented.
  • the relative slip occurs, thereby improving the stability and strength of the detection signal, and at the same time weakening or eliminating the negative influence of the motion on the signal-to-noise ratio of the detected information signal, and further improving the signal-to-noise ratio of the original electrical signal.
  • the elastic unit 109 may be made of a soft silicone material.
  • the elastic unit 109 may specifically be disposed within the earphone housing.
  • connection 16 is a schematic diagram of a connection area between an incision between an ear screen and an outer opening in the sixteenth embodiment of the present application; as shown in FIG. 16, a plurality of connecting lines exist between the area between the incision of the tragus and the opening of the outer opening, or The connection family is formed, and when the light emitting unit or the light receiving unit is set, it can be specifically set on any connection line of the connection family.
  • the light emitter may be specifically made of an LED lamp or an LED tube
  • the light receiver may be specifically made of a photodiode
  • the device embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, ie may be located A place, or it can be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

Abstract

一种生物特征检测装置及电子终端，生物特征检测装置包括：光线发射单元（101）、光线接收单元（102）、柔性部件（106），所述光线发射单元（101）和所述光线接收单元（102）通过所述柔性部件（106）连接，所述光线发射单元（101）用于向生物组织发射光线，所述光线发射单元（101）发射的光线被所述生物组织处理后射向所述光线接收单元（102），所述光线接收单元（102）用于接收经过所述生物组织处理后的光线并进行光电转换以生成用于进行生物特征检测的原始电信号，所述光线发射单元（101）和所述光线接收单元（102）之间的相对位置和/或相对角度通过所述柔性部件（106）调整，从而实现了生物特征的准确监测。

Description

生物特征检测装置及电子终端 技术领域
本申请实施例涉及生物特征检测技术领域，尤其涉及一种生物特征检测装置及电子终端。
背景技术
智能产品的快速发展，比如智能手表、智能手环、智能耳机等的出现，方便了保健性功能应用的实现，比如可实现心率、血氧等生物特征的检测。具体的应用场景比如在运动时对心率、血氧进行监控以判断运动过程中用户的生物特征是否正常，或者，在睡眠时对心率、血氧进行监控以判断睡眠过程中用户的生物特征是否正常。
对于智能产品上述保健型应用功能的实现，目前常用的方式为：基于光学原理进行生物特征的测量，比如光线反射原理、光线投射原理，以光线反射原理为例：光线发射器入射到生物组织后被反射，光线接收器接收到反射的光线，基于反射的光线进行生物特征的检测，在此过程中，入射光线经过组织中血液的作用(吸收、散射)反射后形成反射光线，由于组织中血液会发生周期性变化，通过对反射的光线进行感应、分析，从而得到生物特征。类似，对于光线投射原理来说，基于投射的光线进行感应、分析，从而得到生物特征。
现有技术中，以基于光线反射原理实现的生物特征检测为例，光线发射器和光线接收器之间的相对位置通常固定不变，因此，无法通过调整光线发射器和光线接收器之间的相对位置来实现生物特征的准确监测。
发明内容
本申请实施例的目的在于提供一种生物特征检测装置及电子终端，用以至少解决现有技术中的上述问题。
为实现本申请实施例的目的，本申请实施例提供了一种生物特征检测装置，其包括：光线发射单元、光线接收单元、柔性部件，所述光线发射单元和所述光线接收单元通过所述柔性部件连接，所述光线发射单元用于向生物组织发射光线，所述光线发 射单元发射的光线被所述生物组织处理后射向所述光线接收单元，所述光线接收单元用于接收经过所述生物组织处理后的光线并进行光电转换以生成用于进行生物特征检测的原始电信号，所述光线发射单元和所述光线接收单元之间的相对位置和/或相对角度通过所述柔性部件调整。
可选地，在本申请的任一实施例中，还包括：光学遮挡单元，用于遮挡或吸收所述光线发射单元发射出的光线，以避免光线发射单元发射出的光线未经所述生物组织处理后直接到达所述光学接收单元；和/或，还包括：导光单元，用于引导所述光线发射单元发射出的光线至所述生物组织的探测面和/或引导经过所述生物组织处理后的光线至所述光线接收单元。
可选地，在本申请的任一实施例中，所述光学遮挡单元和所述导光单元为一体结构，或者，所述光学遮挡单元和所述导光单元为分体结构。
可选地，在本申请的任一实施例中，所述光线发射单元及所述光线接收单元上均设置有导光单元，所述光线发射单元上的导光单元与所述光线接收单元上的导光单元为一体结构或者分体结构。
可选地，在本申请的任一实施例中，所述导光单元和/或所述光学遮挡单元的表面形状与所述生物组织的探测面的形状匹配。
可选地，在本申请的任一实施例中，还包括：处理电路，所述处理电路用于对所述原始电信号进行模数转换形成数字信号并对所述数字信号进行滤波处理；和/或,还包括：控制电路，所述控制电路用于控制所述光线发射单元向生物组织发射光线。
可选地，在本申请的任一实施例中，还包括：处理器，所述处理器用于根据所述原始电信号进行生物特征的检测。
可选地，在本申请的任一实施例中，所述相对位置为所述光线发射单元和所述光线接收单元的几何中心之间的直线距离，所述相对角度为所述光线发射单元和所述光线接收单元所在平面之间的法线夹角。
可选地，在本申请的任一实施例中，所述生物特征为基于光电容积描记信号的心率特征或者血氧特征。
可选地，在本申请的任一实施例中，所述生物组织为耳朵，在进行生物特征检测时，所述光线接收单元和/或所述光线发射单元与耳屏内侧区域贴合；或者，所述光线接收单元和/或所述光线发射单元与对耳轮下脚和耳轮脚之间的区域贴合；或者，所述光线接收单元和/或所述光线发射单元与对耳轮和耳轮脚之间的区域贴合，或者，所述光线接收单元和/或所述光线发射单元与耳甲艇区域贴合；或者，所述光线接收单元和/或所述光线发射单元与耳垂区域贴合；或者，所述光线接收单元和/或所述光线发射单元位于耳甲腔区域；或者，所述光线接收单元和/或所述光线发射单元位于由耳轮脚、耳洞口、靠近对耳屏的对耳轮围成的区域。
可选地，在本申请的任一实施例中，若所述光线接收单元与耳屏内侧区域贴合，则所述光线发射单元位于耳屏间切迹和外耳洞口下方连接区域；或者，若所述光线发射单元与耳屏内侧区域贴合，则所述光线接收单元位于耳屏间切迹和外耳洞口下方连接区域。
可选地，在本申请的任一实施例中，还包括：佩戴辅助机构，所述光线接收单元和所述光线发射单元设置在所述佩戴辅助机构上，以使得所述光线接收单元和所述光线发射单元设置在对耳轮下脚与耳轮脚之间的区域；或者，以使得所述光线接收单元和所述光线发射单元设置在对耳轮与耳轮脚之间的区域。
可选地，在本申请的任一实施例中，还包括：弹性单元，所述弹性单元在进行生物特征检测时使得所述光线发射单元和所述光线接收单元与所述生物组织紧密贴合。
本申请实施例还提供一种电子终端，其包括上述任一项所述的检测装置。
本申请实施例中提供的生物特征检测装置中，所述光线发射单元和所述光线接收单元通过所述柔性部件连接，所述光线发射单元用于向生物组织发射光线，所述光线发射单元发射的光线被所述生物组织处理后射向所述光线接收单元，所述光线接收单元用于接收经过所述生物组织处理后的光线并进行光电转换以生成用于进行生物特征检测的原始电信号，所述光线发射单元和所述光线接收单元之间的相对位置和/或相对角度通过所述柔性部件调整，从而实现了生物特征的准确监测。
附图说明
图1为本申请实施例一中生物特征检测装置的结构示意图；
图2为本申请实施例二中生物特征检测装置的结构示意图；
图3为本申请实施例三中生物特征检测装置的结构示意图；
图4为本申请实施例四中耳朵的探测面的候选区域示意图；
图5A、图5B为本申请实施例五中耳屏内侧区域的样本检测信号滤波前后的示意图；
图6为本申请实施例六中耳机在耳朵上的佩戴示意图；
图7为本申请实施例七中耳机在耳朵上的佩戴示意图；
图8为本申请实施例八中耳机在耳朵上的佩戴示意图；
图9为本申请实施例九中耳机在耳朵上的佩戴示意图；
图10为本申请实施例十中耳机在耳朵上的佩戴示意图；
图11为本申请实施例十一中耳机在耳朵上佩戴示意图；
图12为本申请实施例十二中耳机在耳朵上佩戴示意图；
图13为本申请实施例十三中耳机在耳朵上的佩戴示意图。
图14为本申请实施例十四中耳机在耳朵上的佩戴示意图；
图15为本申请实施例十五中耳机在耳朵上的佩戴示意图；
图16为本申请实施例十六中耳屏间切迹与外口洞口连线的示意图；
具体实施方式
以下将配合图式及实施例来详细说明本申请的实施方式，藉此对本申请如何应用技术手段来解决技术问题并达成技术功效的实现过程能充分理解并据以实施。
本申请实施例中提供的生物特征检测装置中，通过所述光线发射单元和所述光线接收单元通过所述柔性部件连接，所述光线发射单元用于向生物组织发射光线，所述光线发射单元发射的光线被所述生物组织处理后射向所述光线接收单元，所述光线接收单元用于接收经过所述生物组织处理后的光线并进行光电转换以生成用于进行生 物特征检测的原始电信号，所述光线发射单元和所述光线接收单元之间的相对位置和/或相对角度通过所述柔性部件调整，从而实现了生物特征的准确监测。
图1为本申请实施例一中生物特征检测装置的结构示意图；本实施例中，生物特征检测装置1又称为生物特征检测装置，具体地，生物特征检测装置包括光线发射单元101、光线接收单元102；所述光线发射单元101用于向生物组织发射光线，所述光线接收单元102接收经过所述生物组织处理后的光线并进行光电转换以生成用于进行生物特征检测的原始电信号。
可选地，本实施例中，生物特征检测装置还可以包括：一硬质基板103，所述光线发射单元101、光线接收单元102均设置在硬质基板103上。
可选地，本实施例中，生物特征检测装置还可以包括：光学遮挡单元104，用于遮挡或吸收所述光线发射单元发射出的光线中未经所述生物组织直接到达所述光学接收单元，进而避免所述光线发射单元发射出的光线直接到达所述光学接收单元导致的噪声，增加了检测的准确性。
可选地，本实施例中，生物特征检测装置还可以包括导光单元105，用于引导所述光线发射单元发射出的光线至所述生物组织的探测面和/或引导经过所述生物组织处理后的光线至所述光线接收单元。具体地，可以针对光线发射单元101、光线接收单元102均设置有导光单元105，即生物特征检测装置包括两个导光单元105，这两个导光单元105可以为一体结构或者分体结构，即所述光线发射单元101上的导光单元105与所述光线接收单元102上的导光单元105为一体结构或者分体结构。但是，需要说明的是，也可以仅针对光线发射单元101或者光线接收单元102设置一导光单元105，即生物特征检测装置包括一个导光单元105。本实施例中，导光单元105的存在，提高了光线传输的效率，降低了装置的整体功耗，也提高了检测的准确度。
具体地，当生物特征检测装置同时设置光学遮挡单元104和导光单元105时，所述光学遮挡单元104和所述导光单元105为一体结构，或者，所述光学遮挡单元104和所述导光单元105为分体结构。
本实施例中，所述导光单元105和所述光学遮挡单元104的朝向探测面的表面形状设置成与所述生物组织的探测面匹配。如果探测面为平面，则所述导光单元105和所述光学遮挡单元104的朝向探测面的表面为平面；如果探测面为弧形面，则所述导光单元105和所述光学遮挡单元104的朝向探测面的表面为弧形面；如果探测面为不规则的曲面，则所述导光单元105和所述光学遮挡单元104的朝向探测面的表面同样为不规则的曲面。需要说明的是，可以根据结构设计的需要，仅将所述导光单元105或所述光学遮挡单元104中朝向探测面的表面形状设置成与所述生物组织的探测面匹配。
在另外一实施例中，在上述图1实施例的基础上，生物特征检测装置还可以包括：处理电路，所述处理电路用于对所述原始电信号进行模数转换形成数字信号并对所述数字信号进行滤波处理；和/或,还包括：控制电路，所述控制电路用于控制所述光线发射单元向生物组织发射光线。
需要说明的是，处理电路的功能可以根据实际需要进行扩展，不仅局限于模数转换、滤波处理。
在另外一实施例中，上述图1实施例的基础上，生物特征检测装置还可以：处理器，所述处理器用于根据所述原始电信号进行生物特征的检测。所述处理器根据所述原始电信号进行生物特征的检测时，可以具体从经过处理电路进行了模数转换、滤波处理后的数字信号中提取生物特征信号；或者是，由处理器直接对原始电信号进行模数转换、滤波处理等之后再进行生物特征信号的检测。需要说明的是，处理器可以为单独增加的微处理器，也可以共用与耳机连接的终端的处理器。
图2为本申请实施例二中生物特征检测装置的结构示意图；如图2所示，本实施例中以爆炸结构示意图为例，与上述图1实施例相同的是，生物特征检测装置同样包括：光线发射单元101、光线接收单元102，与上述实施例不同的是，生物特征检测装置包括：柔性部件106以及两块基板，两块基板分别为第一基板107、第二基板108，所述光线发射单元101设置在所述第一基板107上，所述光线接收单元102设置在所 述第二基板108上。本实施例中，所述第一基板107和所述第二基板108均为硬质基板，所述柔性部件106为柔性电路板。
需要说明的是，可替代地，所述光线发射单元101和所述光线接收单元102也可以设置在同一块刚性基板或者柔性基板上。
本实施例中，所述光线发射单元101近似为柱光源，所述光线接收单元102近似为平面阵列，以尽可能以较大的光线感应面积接收光线。
本实施例中，所述光线发射单元101和所述光线接收单元102之间通过所述柔性部件106连接，所述柔性部件用于调整所述光线发射单元101和所述光线接收单元102之间的相对位置和/或相对角度。
可选地，本实施例中，所述相对位置为所述光线发射单元101和所述光线接收单元102的几何中心之间的直线距离，和/或，所述相对角度为所述光线发射单元101和所述光线接收单元102的外表面之间的法线夹角。
可选地，在本发明的任一实施例中，所述光线接收单元102朝向探测面的外表面的法线与所述探测面的法线平行；和/或，所述光线发射单元101朝向探测面的的外表面的法线与所述探测面的法线平行。
需要说明的是，可替代地，所述第一基板和所述第二基板中之一为柔性基板或者两者均为柔性基板。进一步地，柔性部分可以为柔性基板的部分结构。
在另外一实施例中，上述光线发射单元101、光线接收单元102可以在物理上与所述处理电路为分体结构，也可以与所述处理电路、控制电路、处理器集成一体结构。
在另外一实施例中，上述光线发射单元101、光线接收单元102、处理电路、MCU在物理上为相互分立的分体结构，也可以集成为一体形成芯片结构。
在另外一实施例中，生物特征检测装置中可以包括多个光线发射单元以及一个光线接收单元，以提高光线的发射效率。
在另外一实施例中，生物特征检测装置中可以包括多个光线接收单元以及一个光线接收单元，以提高光线的接收效率。
上述包括柔性部件的实施例中，由于柔性部件的存在，可以任意调整光线发射单元和光线接收单元之间的相对位置、相对角度，使得生物特征检测装置整体上可以适用于任意形状的探测面，另外提高了原始电信号的质量。
另外，将图2所示的实施例应用到后续耳机的具体产品上时，光线发射单元和光线接收单元之间的相对位置、相对角度的调整，使得耳机整机产品的结构较为紧凑。
图3为本申请实施例三中生物特征检测装置的结构示意图；本实施例中，生物特征检测装置1以耳机的形式实现，或者，可理解为将所示的生物特征检测装置集成到现有耳机结构上，为了清楚的说明生物特征检测装置的应用，图1中同时示意出了作为生物组织的耳朵2。以耳机结构实现生物特征检测时，光线发射单元和光线接收单元与耳朵上探测面的位置关系详见下述实施例记载。当探测面设置在如下这些位置时，同时对传统耳机的结构改动较小，且佩戴舒适度好。
图4为本申请实施例四中耳朵的探测面的候选区域示意图；如图4所示，对应到上述图3，耳朵2的部分特征包括：耳轮201、对耳轮202、耳甲203、对耳屏204、三角窝205、对耳轮下脚206、耳甲艇207、耳轮脚208、耳屏上切迹209、外耳洞口210、耳道211、耳屏212、耳屏间切迹213。
下述实施例中，以耳机这一具体产品形态来实现生物特征检测装置为例，为此，为了更好在上述图4所示耳朵的特征区域确定出探测面，通过对耳朵不同特征区域的动脉分支、静脉分支，以及平整度的进行综合分析后，将动脉分支、静脉分支密度较大，较为平整的特征区域作为探测面。
为此，下述实施例中，示例性地，光线发射单元和/或光线接收单元设置在耳屏211内侧区域、或者，耳屏间切迹212与外耳洞口210的连接线上、耳甲203的耳夹腔区域、延伸至耳屏上切迹209的区域、对耳轮下脚206(或对耳轮202)与耳轮脚208之间的区域、耳甲203区域、耳甲艇207区域、耳垂区域(图中未示出)，或者，耳轮脚，或者，由耳轮脚、耳洞口、靠近对耳屏的对耳轮围成的区域等，对于不同的用户来说，这些区域的形态相对比较稳定，即使得生物特征检测装置对不同用户耳朵的兼容性较好，从而较为容易地生成信噪比较高的检测信号，确保了生物特征检测准确性。
在一具体实施例中，光线发射单元和光线接收单元设置在由耳轮脚、耳洞口、靠近对耳屏的对耳轮围成的区域D，生物特征检测装置中的光线发射单元和光线接收单元与该探测面紧密贴合，由于此处位置动静脉分布较为集中，因此，得到的原始电信号信噪比较大、原始电信号的抗干扰性能较强，进一步确保了生物特征检测准确性。另外，由于不同形状的耳朵在区域D上差异较小，因此，如果将生物特征检测装置集成到耳机上，可以使得耳机对耳朵的兼容性较好，耳机的适用范围更广、耳机对于各种用户的信号检测的准确度更高。
图5A、图5B为本申请实施例五中耳屏内侧区域的样本原始电信号滤波前后的示意图；如图5A、5B所示，原始电信号的变化较为平稳，其质量较高，由此可见，在该耳屏212内侧区域动脉分支、静脉分支，以及平整度符合作为探测面的条件。
图6为本申请实施例六中耳机在耳朵上的佩戴示意图；如图6所示，本实施例中，在进行生物特征检测时，所述光线接收单元102和所述光线发射单元101与耳屏212内侧区域贴合，具体地，可以通过设置一参考线R，在将所述光线接收单元102和所述光线发射单元101与耳屏212内侧区域贴合时，使得所述光线接收单元102和所述光线发射单元101的几何中心均位于该参考线R上。由于该耳屏212内侧区域处动脉分支、静脉分支的分布较密，且平整度较好即所述光线接收单元102和所述光线发射单元101与耳屏212内侧区域尽可能地无缝贴合。
本实施例中，为了使得所述光线接收单元102和所述光线发射单元101与耳屏212内侧区域贴合，可以将所述光线接收单元102和所述光线发射单元101集成在耳机被佩戴后可与耳屏212内侧区域贴合的壳体位置处，无须增加任何辅助机构，使得包括所述光线接收单元102和所述光线发射单元101的生物特征检测装置整体上与耳屏内侧区域紧密贴合。
图7为本申请实施例七中耳机在耳朵上的佩戴示意图；如图7所示，本实施例中，与上述图6实施例六相同的是，虽然在进行生物特征检测时，所述光线接收单元102 和所述光线发射单元101与耳屏内侧区域贴合，但是，在耳屏212内侧区域具体的贴合位置远离外耳洞口，由于该耳屏212内侧区域处动脉分支、静脉分支的分布较密，且平整度较好即所述光线接收单元102和所述光线发射单元101与耳屏内侧区域尽可能地无缝贴合。
本实施例中，类似上述图6所示的实施例，为了使得所述光线接收单元102和所述光线发射单元101与耳屏212内侧区域贴合，可以将所述光线接收单元102和所述光线发射单元101集成在耳机被佩戴后可与耳屏212内侧区域贴合的壳体位置处，无须增加任何辅助机构，使得包括所述光线接收单元102和所述光线发射单元101的生物特征检测装置整体上与耳屏内侧区域紧密贴合。
图8为本申请实施例八中耳机在耳朵上的佩戴示意图；如图8所示，本实施例中，与上述图6相同的是，在进行生物特征检测时，所述光线接收单元102与耳屏内侧区域贴合，所述光线发射单元101进一步位于耳屏间切迹和外耳洞口连接区域且同时与耳屏、对耳屏、耳屏间切迹围绕的特征区域贴合。由于该耳屏212内侧区域和耳屏间切迹和外耳洞口连接区域的动脉分支、静脉分支的分布较密，且平整度较好，从而保证所述光线接收单元102和所述光线发射单元101与耳朵尽可能地无缝贴合。
需要说明的是，在其他实施例中，所述光线发射单元101与耳屏内侧区域贴合，所述光线接收单元102进一步位于耳屏间切迹和外耳洞口连接区域且同时与耳屏、对耳屏、耳屏间切迹围绕的特征区域贴合。
本实施例中，类似上述图6所示的实施例，为了使得所述光线接收单元102和所述光线发射单元101与耳屏212内侧区域、耳屏间切迹和外耳洞口连接区域紧密贴合，可以将所述光线接收单元102和所述光线发射单元101集成在耳机被佩戴后可与耳屏212内侧区域贴合的壳体位置处、与耳屏间切迹和外耳洞口连接区域贴合的壳体位置处，无须增加任何辅助机构，使得包括所述光线接收单元102和所述光线发射单元101的生物特征检测装置整体上与耳朵紧密贴合。
图9为本申请实施例九中耳机在耳朵上的佩戴示意图；如图9所示，本实施例中，所述光线发射单元101和所述光线接收单元102均位于耳屏间切迹和外耳洞口连接区 域且同时与耳屏、对耳屏、耳屏间切迹围绕的特征区域贴合。
本实施例中，类似上述图6所示的实施例，为了使得所述光线接收单元102和所述光线发射单元101与耳屏间切迹和外耳洞口连接区域紧密贴合，可以将所述光线接收单元102和所述光线发射单元101集成在耳机被佩戴后可与耳屏间切迹和外耳洞口连接区域贴合的壳体位置处，无须增加任何辅助机构，使得包括所述光线接收单元102和所述光线发射单元101的生物特征检测装置整体上与耳屏内侧区域紧密贴合。
图10为本申请实施例十中耳机在耳朵上的佩戴示意图；如图10所示，所述光线接收单元102和所述光线发射单元101与对耳轮下脚和耳轮脚之间的区域贴合。
本实施例中，耳机还可以包括：佩戴辅助机构110，所述光线接收单元102和所述光线发射单元101设置在所述佩戴辅助机构110上，以使得所述光线接收单元102和所述光线发射单元101与所述对耳轮下脚和耳轮脚之间的区域贴合。
在另外一实施例中，类似图10，所述光线接收单元102和所述光线发射单元101与对耳轮和耳轮脚之间的区域贴合。
在另外一实施例中，佩戴辅助机构110与耳机之间可以可拆卸，以便在需要进行生物特征检测时将佩戴辅助结构110装配到耳机上，而在不需要进行生物特征检测时，将佩戴辅助结构110从耳机上拆卸下来，从而方便耳机和佩戴辅助机构110的灵活使用。
在具体实施时，佩戴辅助机构110可以一端固定在耳机的外壳上，另外一端所述光线接收单元102和所述光线发射单元101。
图11为本申请实施例十一中耳机在耳朵上佩戴示意图；如图11所示，本实施例中，所述光线接收单元102和所述光线发射单元101均与耳甲艇区域贴合；在其他实施例中，所述光线接收单元102和所述光线发射单元101之一与耳甲艇区域贴合。
在上述图6-图11实施例中，基于光线反射原理进行生物特征的检测。但是，需要 说明的是，可以对上述光线发射单元101或者光线接收单元102的设置位置做相应的调整，以基于光线投射原理进行生物特征的检测。
在另外一实施例中，所述光线接收单元102与耳甲艇区域贴合，所述光线发射单元101与耳甲艇区域对应的耳背区域贴合，对应地，可以基于光投射原理进行生物特征的检测。
图12为本申请实施例十二中耳机在耳朵上佩戴示意图；如图12所示，所述光线接收单元102和所述光线发射单元101均与耳垂区域贴合。本实施例中，可以将所述光线接收单元102和所述光线发射单元101设置在耳垂区域的同一侧，对应地，可以基于光反射原理进行生物特征的检测。
另外，如果将所述光线接收单元102和所述光线发射单元101分别设置在耳垂区域的两侧，对应地，可以基于光投射原理进行生物特征的检测，参见图13，为本申请实施例十三中耳机在耳朵上的佩戴示意图。
图14为本申请实施例十四中耳机在耳朵上的佩戴示意图；如图14所示，与上述实施例不同的是，在耳机上设置三对光线发射单元101以及光线接收单元102。具体地，如图14所示，在耳屏内侧区域、对耳轮下脚与耳轮脚之间的区域、耳夹腔区域分别设置一对光线发射单元101以及光线接收单元102。
图15为本申请实施例十五中耳机在耳朵上的佩戴示意图；如图15所示，本市实施例中，增加了弹性单元109，所述弹性单元109在进行生物特征检测时使得所述光线发射单元101和所述光线接收单元102与所述耳朵的探测面紧密贴合。本实施例中，以在图5所示实施例基础上增加弹性单元为例，如图15所示，弹性单元109设置在远离外耳洞口的耳朵周围区域，使得可挤压所述光线发射单元101和所述光线接收单元102与所述耳朵的探测面紧密贴合。
可替代地，在其他实施例中，也可以使得弹性单元109仅对所述光线发射单元101和所述光线接收单元102之一形成挤压，使得被挤压的光线发射单元101或者光线接收单元102与所述耳朵的探测面紧密贴合。
在包括弹性单元109的实施例中，即使在运动过程中，光线发射单元101和/或光线接收单元102与所述耳朵的探测面可以紧密贴合，可以防止生物特征检测装置与探测面之间发生相对滑动，从而提高了检测信号的稳定性和强度，与此同时减弱或者消除了运动对检测信息号信噪比的负面影响，进一步提高了原始电信号的信噪比。
上述实施例中，弹性单元109可以由软硅胶材料制成。弹性单元109具体可以设置在耳机外壳内。
图16为本申请实施例十六中耳屏间切迹与外口洞口连接区域的示意图；如图16所示，耳屏间切迹与外口洞口连接区域存在多条连接线，或称为形成连接族，在设置光线发射单元或者光线接收单元时，可以具体设置在连接族的任一连接线上。
上述实施例中，光线发射器具体可由LED灯或者LED管制成，光线接收器具体可为由光电二极管制成。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (14)

  1. 一种生物特征检测装置，其特征在于，包括：光线发射单元、光线接收单元、及柔性部件，所述光线发射单元和所述光线接收单元通过所述柔性部件连接，所述光线发射单元用于向生物组织发射光线，所述光线发射单元发射的光线被所述生物组织处理后射向所述光线接收单元，所述光线接收单元用于接收经过所述生物组织处理后的光线并进行光电转换以生成用于进行生物特征检测的原始电信号，所述光线发射单元和所述光线接收单元之间的相对位置和/或相对角度通过所述柔性部件调整。
  2. 根据权利要求1所述的检测装置，其特征在于，还包括：光学遮挡单元，用于遮挡或吸收所述光线发射单元发射出的光线，以避免光线发射单元发射出的光线未经所述生物组织处理后直接到达所述光学接收单元；和/或，还包括：导光单元，用于引导所述光线发射单元发射出的光线至所述生物组织的探测面和/或引导经过所述生物组织处理后的光线至所述光线接收单元。
  3. 根据权利要求2所述的检测装置，其特征在于，所述光学遮挡单元和所述导光单元为一体结构，或者，所述光学遮挡单元和所述导光单元为分体结构。
  4. 根据权要求2所述的检测装置，其特征在于，所述光线发射单元及所述光线接收单元上均设置有所述导光单元，所述光线发射单元上的导光单元与所述光线接收单元上的导光单元为一体结构或者分体结构。
  5. 根据权利要求2所述的检测装置，其特征在于，所述导光单元和/或所述光学遮挡单元的表面形状与所述生物组织的探测面的形状匹配。
  6. 根据权利要求1-5所述的检测装置，其特征在于，还包括：处理电路，所述处理电路用于对所述原始电信号进行模数转换形成数字信号并对所述数字信号进行滤波处理；和/或,还包括：控制电路，所述控制电路用于控制所述光线发射单元向生物组织发射光线。
  7. 根据权利要求6所述的检测装置，其特征在于，还包括：处理器，所述处理器用于根据所述原始电信号进行生物特征的检测。
  8. 根据权利要求1-7所述的检测装置，其特征在于，所述相对位置为所述光线发射单元和所述光线接收单元的几何中心之间的直线距离，所述相对角度为所述光线 发射单元和所述光线接收单元所在平面之间的法线夹角。
  9. 根据权利要求1-8所述的检测装置，其特征在于，所述生物特征为基于光电容积描记信号的心率特征或者血氧特征。
  10. 根据权利要求1-9所述的检测装置，其特征在于，所述生物组织为耳朵，在进行生物特征检测时，所述光线接收单元和/或所述光线发射单元与耳屏内侧区域贴合；或者，所述光线接收单元和/或所述光线发射单元与对耳轮下脚和耳轮脚之间的区域贴合；或者，所述光线接收单元和/或所述光线发射单元与对耳轮和耳轮脚之间的区域贴合，或者，所述光线接收单元和/或所述光线发射单元与耳甲艇区域贴合；或者，所述光线接收单元和/或所述光线发射单元与耳垂区域贴合；或者，所述光线接收单元和/或所述光线发射单元位于耳甲腔区域；或者，所述光线接收单元和/或所述光线发射单元位于由耳轮脚、耳洞口、靠近对耳屏的对耳轮围成的区域。
  11. 根据权利要求10所述的检测装置，其特征在于，若所述光线接收单元与耳屏内侧区域贴合，则所述光线发射单元位于耳屏间切迹和外耳洞口下方连接区域；或者，若所述光线发射单元与耳屏内侧区域贴合，则所述光线接收单元位于耳屏间切迹和外耳洞口下方连接区域。
  12. 根据权利要求10所述的检测装置，其特征在于，还包括：佩戴辅助机构，所述光线接收单元和所述光线发射单元设置在所述佩戴辅助机构上，以使得所述光线接收单元和所述光线发射单元设置在对耳轮下脚与耳轮脚之间的区域；或者，以使得所述光线接收单元和所述光线发射单元设置在对耳轮与耳轮脚之间的区域。
  13. 根据权利要求1-12所述的检测装置，其特征在于，还包括：弹性单元，所述弹性单元在进行生物特征检测时使得所述光线发射单元和所述光线接收单元与所述生物组织紧密贴合。
  14. 一种电子终端，其特征在于，包括权利要求1-13任一项所述的检测装置。
PCT/CN2017/091042 2017-06-30 2017-06-30 生物特征检测装置及电子终端 WO2019000372A1 (zh)

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