WO2023092587A1 - 生物特征信息的检测装置和电子设备 - Google Patents

生物特征信息的检测装置和电子设备 Download PDF

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Publication number
WO2023092587A1
WO2023092587A1 PCT/CN2021/134104 CN2021134104W WO2023092587A1 WO 2023092587 A1 WO2023092587 A1 WO 2023092587A1 CN 2021134104 W CN2021134104 W CN 2021134104W WO 2023092587 A1 WO2023092587 A1 WO 2023092587A1
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WIPO (PCT)
Prior art keywords
user
finger
light
detection device
detection module
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PCT/CN2021/134104
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English (en)
French (fr)
Inventor
蔡军
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深圳市汇顶科技股份有限公司
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Priority to PCT/CN2021/134104 priority Critical patent/WO2023092587A1/zh
Publication of WO2023092587A1 publication Critical patent/WO2023092587A1/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
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]

Definitions

  • the present application relates to the field of electronic technology, and more specifically, to a biometric information detection device and electronic equipment.
  • the present application provides a biological feature information detection device and electronic equipment, which can realize synchronous detection of multiple biological feature signals and improve user experience.
  • a device for detecting biometric information including: a transparent cover; an electrocardiogram (ECG) electrode, arranged on the first surface of the transparent cover facing the user's finger, for receiving the pressing of the user's finger , and collect the electrical signal of the user's finger to form an ECG signal;
  • the photoplethysmography (PPG) detection module includes: a light source and a light detector, which are arranged on the side of the transparent cover plate away from the user's finger, when the user When a finger is pressed on the ECG electrode, the light source is used to emit a light signal to the user's finger, and the light signal is received by the light detector after being reflected or scattered by the user's finger, and is used for processing to form a PPG signal, and the PPG signal and the The ECG signal is used for common processing to obtain the biometric information of the user.
  • ECG electrocardiogram
  • PPG photoplethysmography
  • the biometric information detection device includes ECG electrodes and a PPG detection module at the same time, wherein the ECG electrodes are arranged on the first surface of the light-transmitting cover facing the user's finger, and the PPG detection module is arranged on the light-transmitting cover.
  • the user's biometric information such as blood pressure information, can be obtained through joint processing, which can improve the accuracy of detection.
  • ECG electrodes and PPG detection modules do not need They are respectively arranged at different positions of the electronic equipment, so that the space occupied by the detection device of biometric information in the electronic equipment can be saved, while improving the aesthetics of the electronic equipment, it is also conducive to the development of thinner and smaller electronic equipment.
  • the ECG electrode is a metal electrode formed on the first surface of the light-transmitting cover plate by a coating process.
  • a thinner metal layer may be deposited on the first surface of the light-transmitting cover plate by a coating process to form the ECG electrode. While realizing the conductive function, it not only takes up less space, but also makes the surface of the detection device facing the user more aesthetically pleasing, thereby further improving the user's experience of using the detection device, and further reducing the electronic load of the detection device. The required space in the device.
  • the thickness of the ECG electrode formed by the coating process is less than or equal to 5 ⁇ m.
  • the ECG electrode is a transparent electrode, and the ECG electrode completely covers the first surface of the transparent cover plate.
  • the transparent ECG electrode basically does not affect the passage of the light signal, and thus basically does not affect the detection function of the PPG detection module.
  • the transparent ECG electrode can completely cover the first surface of the light-transmitting cover plate, without additional processing such as opening holes on the transparent ECG electrode, which can improve the ECG The processing efficiency of the electrode is improved, and the manufacturing cost of the ECG electrode is reduced.
  • the ECG electrode is a non-transparent electrode, and an opening is formed in the ECG electrode, and the opening corresponds to the light source and the photodetector.
  • an opening is provided in the non-transparent ECG electrode, so that the setting of the ECG electrode will not affect the detection function of the PPG detection module, and the ECG detection function and the PPG detection function are realized simultaneously.
  • the ECG electrode is a non-transparent metal electrode, which can make most of the internal structure of the detection device invisible to the user, thereby optimizing the appearance of the detection device and further improving the user experience.
  • the PPG detection module further includes: a circuit board supporting and electrically connecting the light source and the photodetector for transmitting electrical signals of the light source and the photodetector; the circuit board is also electrically connected to the ECG electrodes for transmitting the electrical signals of the ECG electrodes.
  • the same circuit board can be used to realize the signal transmission of multiple detection components in the detection device, which can reduce the manufacturing cost of the detection device, and is also beneficial to compress the quality and volume of the detection device.
  • the same circuit board can be used to realize the signal transmission of multiple detection components in the detection device, which can reduce the manufacturing cost of the detection device, and is also beneficial to compress the quality and volume of the detection device.
  • it is conducive to the development of its lightness and miniaturization.
  • the ECG electrodes are also extended on the second surface of the light-transmitting cover that faces away from the user's finger and the side of the light-transmitting cover except the first surface and the second surface;
  • the detection device also includes: an electrical connector connecting the ECG electrodes on the second surface with the circuit board.
  • the ECG electrodes are also extended and arranged on the second surface of the transparent cover opposite to the first surface and the transparent cover.
  • this embodiment is easy to realize, ECG electrodes can be directly formed on multiple surfaces of the light-transmitting cover plate through a coating process, and the connection between the ECG electrodes and the circuit board can also be realized by using an electrical connector with a simple structure.
  • there is no need to use other metal connection wires to realize the electrical signal transmission of the ECG electrodes the overall appearance of the detection device is better and it is beneficial to the waterproof design of the detection device, thereby improving user experience.
  • the electrical connector is located between the light source and the photodetector, so as to block at least part of the light signal emitted by the light source from directly entering the photodetector.
  • the electrical connector can be arranged between the light source and the photodetector, so as to block at least part of the light signal emitted by the light source from directly entering the photodetector, so as to improve the response of the photodetector to the light reflected or scattered by the user's finger.
  • the detection effect of the effective optical signal improves the detection accuracy of the detection device for biometric information.
  • the PPG detection module further includes: a support, disposed between the light-transmitting cover and the circuit board, a hollow cavity is formed in the support, and the hollow cavity is used for accommodating and Protect the light source and photodetector.
  • the detection device further includes: a temperature detection module, disposed on the circuit board and facing the transparent cover, the temperature detection module is connected to the transparent cover through a heat conduction layer, and is used for detecting The temperature of the user's finger on the transparent cover.
  • the detection device further includes: a temperature detection module, disposed on the second surface of the transparent cover away from the user's finger, for detecting the temperature of the user's finger on the transparent cover.
  • the detection device is integrated with a temperature detection module, which can not only realize the user's body temperature detection, but also make the functions of the detection device more diversified, and related studies have found that human blood sugar detection is also related to body temperature detection results Strong correlation, through the human body temperature detected by the temperature detection module and the PPG signal detected by the above-mentioned PPG detection module, a relatively accurate blood sugar detection result can be obtained, and the overall performance of the detection device can be further improved.
  • the detection device further includes: a pressure detection module, disposed on the side of the transparent cover plate away from the user's finger, when the user's finger is pressed against the ECG electrode, the pressure detection module is used to Detecting the pressing pressure between the user's finger and the ECG electrode to obtain a pressure signal; the pressure signal, the PPG signal and the ECG signal are used for joint processing to obtain the biometric information of the user.
  • a pressure detection module disposed on the side of the transparent cover plate away from the user's finger, when the user's finger is pressed against the ECG electrode, the pressure detection module is used to Detecting the pressing pressure between the user's finger and the ECG electrode to obtain a pressure signal; the pressure signal, the PPG signal and the ECG signal are used for joint processing to obtain the biometric information of the user.
  • a pressure detection module is integrated in the detection device.
  • the ECG electrode, PPG detection module and pressure detection module work simultaneously to detect the ECG signal, PPG signal and pressure signal of the user's finger respectively.
  • the feature information detection improves the accuracy of the biological feature information detection.
  • the transparent cover, the PPG detection module and the pressure detection module are stacked in sequence.
  • the pressure is detected by the transparent cover and the PPG.
  • the module is transferred to the pressure detection module, so that the pressure detection module detects the pressing pressure between the user's finger and the ECG electrode.
  • the pressure detection module and the PPG detection module are stacked so that the pressure signal detected by the pressure detection module and the PPG signal detected by the PPG detection module both correspond to the same part of the user's finger.
  • the biometric information obtained by detecting the pressure signal and the PPG signal with higher correspondence has higher accuracy.
  • the pressure detection module includes: a cantilever beam and a strain gauge pressure sensor, the cantilever beam is an elastic element, and the strain gauge pressure sensor is arranged on the surface of the cantilever beam.
  • the pressure detection module further includes: a frame-shaped support, the cantilever beam is installed in the frame-shaped support; the PPG detection module includes: a limit flange, when the user's finger presses on the light-transmitting When covering the plate, the PPG detection module is in contact with the cantilever beam, and can abut against the frame-shaped bracket through the limit flange, so as to limit the user’s fingers from being applied to the cantilever through the light-transmitting cover plate and the PPG detection module. Beam pressure.
  • an electronic device including: the detection device of biometric information in the first aspect or any possible implementation manner of the first aspect, the detection device is located on the surface of the electronic device so that the user's finger can press .
  • the electronic device is a smart watch
  • the detection device is arranged on a side of the smart watch.
  • the electronic device can simultaneously detect the ECG signal and the PPG signal of the user's finger, and the ECG signal and the PPG signal are used for joint processing to obtain the user's biometric Information, such as blood pressure information, can improve the accuracy of detection.
  • biometric Information such as blood pressure information
  • the user can realize the detection of biometric information only by a single press of a single finger on the electronic device, which can facilitate user operation and improve user experience.
  • ECG electrodes and PPG detection The modules do not need to be arranged in different positions of the electronic equipment, so that the space occupied by the detection device of biometric information can be saved in the electronic equipment. While improving the aesthetics of the electronic equipment, it is also conducive to the thinning and miniaturization of the electronic equipment. develop.
  • FIG. 1 is a structural block diagram of an electronic device suitable for a biometric information detection device in the present application.
  • Fig. 2 is a schematic diagram of a smart watch.
  • FIG. 3 is a schematic structural diagram of an apparatus for detecting biometric information provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another device for detecting biometric information provided by an embodiment of the present application.
  • FIG. 5 is a schematic three-dimensional exploded view of another biometric information detection device provided by an embodiment of the present application.
  • FIG. 6 is a schematic three-dimensional exploded view of another biometric information detection device provided by an embodiment of the present application.
  • FIG. 7 is a schematic three-dimensional exploded view of another biometric information detection device provided by an embodiment of the present application.
  • FIG. 8 is a schematic perspective view of another biometric information detection device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 1 shows a structural block diagram of an electronic device to which the apparatus for detecting biometric information in this application is applicable.
  • the electronic device 10 may include a bus 110 , a processor 120 , a memory 130 , an input/output interface 140 , a display 150 , a communication interface 160 and a biometric information detection device 170 .
  • the bus 110 may include circuits that enable transmission of communications (eg, control messages or data) between components in the electronic device 10 .
  • the bus 110 may include: a serial peripheral interface (Serial Peripheral Interface, SPI) communication bus, which is used to implement data communication between the biometric information detection device 170 and the processor 120.
  • SPI Serial Peripheral Interface
  • the bus 110 may also include other types of communication buses, which are not specifically limited in this embodiment of the present application.
  • Processor 120 may include one or more types of data processors for performing data processing.
  • the processor 120 may be a microcontroller unit (Microcontroller Unit, MCU), a central processing unit (Central Processing Unit, CPU) or other types of processors, which are not specifically limited in this embodiment of the present application.
  • MCU microcontroller Unit
  • CPU Central Processing Unit
  • the memory 130 may include volatile memory and/or non-volatile memory. It can store instructions or data related to other functional components in the electronic device 10 .
  • the input/output interface 140 can be used to receive instructions or data input from users or external devices, and then transmit them to other functional components in the electronic device 10, or can output instructions or data generated by other functional components in the electronic device 10 to user or external device.
  • the display 150 may include, for example, a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display or other types of displays.
  • the display 150 may display various types of content, such as text, images, videos, icons, etc., for a user. Further, the display 150 may include a touch screen, and the user may input relevant instruction information through the touch screen.
  • the communication interface 160 can be used to implement communication between the electronic device 10 and external devices, such as a network server or other electronic devices.
  • the communication interface 160 may be connected to a communication network through wireless or wired communication to communicate with external devices.
  • wireless communication includes but is not limited to cellular communication or short-distance communication.
  • Wired communication includes but is not limited to at least one of Universal Serial Bus (Universal Serial Bus, USB), High Definition Multimedia Interface (High Definition Multimedia Interface, HDMI), Recommended Standard 232 (RS-232) or other communication methods.
  • the biometric information detection device 170 is used to detect the biometric information of the user.
  • the biometric information includes but is not limited to: heart rate, blood pressure, respiratory rate, blood oxygen saturation, body temperature, blood sugar and other parameter information, which can pass the test The light signal passed through the user's finger, and biometric signals such as fingerprint images and pulse waves are obtained from it.
  • the biometric information detection device 170 in the embodiment of the present application can be used to detect the user's biometric Signal calculation and analysis to obtain one or more types of user biometric information.
  • the electronic device 10 may omit at least one of the above components, or may further include other components, which will not be described in detail here.
  • the electronic device 10 may be a smart wearable device, a mobile phone, a tablet computer, a mobile medical device, etc.
  • the smart wearable device may include at least one of the following devices: a watch, a bracelet, Anklets, necklaces, glasses, or head-mounted devices
  • mobile medical devices may include at least one of the following devices: heart rate monitoring devices, blood pressure measuring devices, body temperature measuring devices, etc., which are not limited in this embodiment of the present application.
  • Fig. 2 shows a schematic diagram of a smart watch.
  • the first button 201 may be provided with a first biometric information detection device, and the first biometric information detection device may be used to detect the user's biometric information such as blood pressure, heart rate, and blood oxygen.
  • the detection device 201 of the first biometric information may include: a light source and a light detector, the light source emits a light signal to the user's finger pressing the first key 201, and the light signal is reflected or scattered by blood vessels in the user's finger , which can be received by the photodetector.
  • the light signal reflected or scattered by the blood vessels in the user's finger can carry the user's blood pressure, heart rate, blood oxygen and other information.
  • the photodetector After being received by the photodetector, it can form a photoplethysmogram after photoelectric conversion and related signal processing.
  • Photo Plethysmography (PPG) signal after the PPG signal is further processed by an algorithm, the user's blood pressure, heart rate, blood oxygen and other biometric information can be obtained.
  • the second button 202 may be provided with a second biometric information detecting device, and the second biometric information detecting device may be used to detect the user's electrocardiography (Electrocardiography, ECG).
  • ECG electrocardiography
  • the detection device for the second biometric information may include: ECG electrodes, when the user's finger presses the second button 202, the ECG electrode can be used to collect the electrical signal at the user's finger, the electrical signal is amplified by an amplifier and correlated After signal processing, the user's ECG waveform can be obtained. Since the ECG waveform can not only reflect the user's heart function status, but also can be combined with the above-mentioned PPG signal to determine more accurate user's blood pressure and other biometric information related to the human cardiovascular system through algorithm.
  • the first button 201 and the second button 202 are respectively located on both sides of the smart watch 20.
  • the user performs biometric information detection, he needs to press the first button 201 and the second button 202 with two fingers respectively. superior.
  • this method is more complicated for the user to operate. Not only does it require two fingers to press, but the pressing operation of the two fingers needs to maintain a high degree of synchronization, otherwise it is not conducive to improving the accuracy of biometric information detection results.
  • this method needs to occupy a large space, and the appearance is not high.
  • this application proposes a biometric information detection device, which can integrate the above-mentioned first biometric information detection device and the second biometric information detection device, and the user can realize electrocardiogram, Synchronous detection of various biometric information such as blood pressure.
  • FIG. 3 shows a schematic structural diagram of a biometric information detection device 300 provided by an embodiment of the present application.
  • the biometric information detection device 300 may be the biometric information detection device 170 in the embodiment shown in FIG. In the electronic device 10 or the smart watch 20 shown in FIG. 2 .
  • the detection device 300 of the biometric information includes:
  • the ECG electrode 320 is arranged on the first surface 311 of the light-transmitting cover plate 310 facing the user's finger, and is used to receive the pressing of the user's finger and collect the electrical signal of the user's finger to form an ECG signal;
  • the PPG detection module 330 includes: a light source 331 and a light detector 332, which are disposed on a side of the transparent cover plate 310 away from the user's finger.
  • the light source 331 is used to emit a light signal to the user's finger, and the light signal is received by the photodetector 332 after being reflected or scattered by the user's finger, and is used for processing to form a PPG signal.
  • the ECG signal is used for common processing to obtain the biometric information of the user.
  • the biometric information detection device 300 includes an ECG electrode 320 and a PPG detection module 330, wherein the ECG electrode 320 is arranged on the first surface 311 of the transparent cover plate 310 facing the user's finger, and the PPG The detection module 330 is arranged on the side of the light-transmitting cover 310 facing away from the user's finger.
  • the ECG electrode 320 and the PPG detection module can work synchronously, and respectively detect the ECG signal and the PPG signal of the user's finger.
  • the ECG signal and PPG signal are used to jointly process to obtain the user's biometric information, such as ECG and blood pressure information, because the diseases of ECG and blood pressure are the external manifestations of lesions in the human cardiovascular system, in essence Therefore, synchronously recording the dynamic information of ECG and blood pressure and objectively using the internal correlation between the two can improve the accuracy of detection.
  • the user can realize the detection of biometric information only by a single press of a single finger, which can facilitate user operation and improve user experience;
  • the ECG electrode 320 and the PPG detection module 330 also It does not need to be arranged in different positions of the electronic equipment, thereby saving the space occupied by the detection device 300 of biometric information in the electronic equipment, improving the aesthetics of the electronic equipment, and also facilitating the development of thinner and smaller electronic equipment .
  • the light source 331 in the PPG detection module 330 includes but is not limited to a point light source, for example, a light-emitting diode (Light-Emitting Diode, LED), a laser diode (Laser Diode, LD) or an infrared light source.
  • the emitting diode can also be a linear light source or a surface light source.
  • the number of light sources 331 can be one or more, and the one or more light sources 331 can be used to emit light signals of one or more target bands, and the light signals of the target bands can be used to pass through the user's finger and carry the user's Biometric signals related to blood vessels and blood in fingers.
  • the optical signal in the target wavelength band includes, but is not limited to, a visible light signal and/or an infrared light signal.
  • the target wavelength band may be a red light band or a green light band.
  • the embodiment of the present application does not specifically limit the type, quantity, and emitted light wavelength of the light source 331 .
  • the light detector 332 includes but is not limited to a photodiode (Photodiode, PD), a phototransistor, etc., which are used for photoelectric conversion, and convert the received light signal reflected or scattered by the finger into a corresponding electrical signal. Signal.
  • the PPG detection module 330 may also include optical elements and processing circuits.
  • the optical element may be disposed above the PD to guide more effective light signals into the PD, so as to improve the light detection performance of the PD.
  • the processing circuit can be used to perform signal processing on the electrical signal obtained by PD processing, so as to obtain a PPG signal with better signal quality.
  • the interface for receiving the user's finger needs to be transparent.
  • the light interface is the light-transmitting cover plate 310 in the embodiment of the present application.
  • the wavelength of the optical signal transmitted by the transparent cover plate 310 can be determined according to the wavelength of the optical signal emitted by the light source 331 in the PPG detection module 330 .
  • the light source 331 in the PPG detection module 330 is used to emit visible light, and correspondingly, the transparent cover plate 310 can be used to pass the visible light.
  • the light-transmitting cover plate 310 can be a transparent material, such as a material with high light transmittance such as glass or resin, which can reduce the attenuation of the optical signal when it passes through the cover plate, and improve the signal received by the PPG detection module 330. light signal strength.
  • the ECG electrode 320 may be a metal electrode formed on the first surface 311 of the transparent cover plate 310 by a coating process.
  • the coating process includes but is not limited to: a vacuum coating process, such as a physical vapor deposition (Physical Vapor Deposition, PVD) coating process, a chemical vapor deposition (Chemical Vapor Deposition, CVD) coating process, and the like.
  • a thinner metal layer can be deposited and prepared on the first surface 311 of the light-transmitting cover plate 310 in a vacuum environment to form the ECG electrode 320, while realizing the conductive function. , not only takes up less space, but also makes the surface of the detection device 300 facing the user more aesthetically pleasing, thereby further improving the user's experience of using the detection device 300 and further reducing the cost of the detection device 300 in electronic equipment. space required.
  • the thickness of the ECG electrode 320 may be less than or equal to 5 ⁇ m.
  • the ECG electrode 320 can be a non-transparent metal electrode, for example, the material of the ECG electrode 320 includes but not limited to metal chromium (Cr) material.
  • the ECG electrode 320 in order to realize the detection function of the PPG detection module 330 , the ECG electrode 320 needs to be provided with an opening corresponding to the light source 331 and the light detector 332 .
  • the light source 331 and the light detector 332 may correspond to the same opening in the ECG electrode 320 , which may completely cover the light source 331 and the light detector 332 .
  • the light source 331 and the light detector 332 may respectively correspond to two openings in the ECG electrode 320 , and the two openings cover the light source 331 and the light detector 332 respectively.
  • an opening is set in the non-transparent ECG electrode 320, so that the setting of the ECG electrode 320 will not affect the detection function of the PPG detection module 330, and the ECG detection function and the PPG detection function are simultaneously realized.
  • the ECG electrode 320 is a non-transparent metal electrode, which can make most of the internal structure of the detection device 300 invisible to the user, thereby optimizing the appearance of the detection device 300 and further improving the user experience.
  • the ECG electrode 320 can also be a transparent electrode, and the transparent electrode will basically not affect the passing of the light signal, and therefore will not basically affect the detection function of the PPG detection module 330.
  • the transparent ECG electrode 320 can completely cover the first surface 311 of the light-transmitting cover plate 310, and there is no need to make additional holes on the transparent ECG electrode 320. The processing can improve the processing efficiency of the ECG electrode 320 and reduce the manufacturing cost of the ECG electrode 320 .
  • the material of the transparent ECG electrode includes but not limited to: indium tin oxide (Indium tin oxide, ITO).
  • FIG. 4 shows a schematic structural diagram of another biometric information detection device 300 provided by an embodiment of the present application.
  • the PPG detection module 330 also includes: a circuit board 333 for supporting and electrically connecting the above-mentioned light source 331 and photodetector 332, wherein the light source 331 and photodetector 332 are arranged on the circuit board 333 faces a side of the transparent cover plate 310 .
  • the circuit board 333 is also used to implement electrical signal transmission of the light source 331 and the photodetector 332 .
  • the electrical signal of the light source 331 includes but not limited to: a control signal used to control the working state of the light source 331
  • the electrical signal of the photodetector 332 includes but not limited to: a control signal used to control the working state of the photodetector 332;
  • the light detector 332 detects the electrical signal obtained after receiving the light signal.
  • the circuit board 333 includes but is not limited to a printed circuit board (Printed Circuit Board, PCB), a flexible circuit board (Flexible Printed Circuit, FPC) or other types of circuit boards.
  • the circuit board 333 can be further connected to a processor or a controller of an electronic device through an electrical connection device (for example, a flexible circuit board), the processor or the controller
  • the generated control signal can be transmitted to the light source 331 and the photodetector 332 through the circuit board 333 to control the working timing of the two.
  • the electrical signal generated by the light detector 332 after receiving the light signal is also transmitted to the processor or controller of the electronic device through the circuit board 333 for data processing to form a PPG signal and detect biometric information.
  • the circuit board 333 can also be electrically connected to the above-mentioned ECG electrode 320 to realize the function of the ECG electrode 320. Electrical signal transmission.
  • the electrical signal of the ECG electrode 320 includes but not limited to: the electrical signal of the user's finger detected by the ECG electrode 320 .
  • the same circuit board 333 can be used to realize the signal transmission of multiple detection components in the detection device 300 , which can reduce the manufacturing cost of the detection device 300 and is also beneficial to compress the quality and volume of the detection device 300 .
  • the detection device 300 realizes multiple detection functions, it is conducive to its development of lightness and miniaturization.
  • the ECG electrode 320 can be set in addition to In addition to the first surface 311 of the light-transmitting cover 310 facing the user's finger, the side of the light-transmitting cover 310 and the second surface 312 of the light-transmitting cover 310 facing away from the user's finger can also be extended.
  • the detection device 300 may further include an electrical connector 350 for connecting the ECG electrodes 320 on the second surface 312 with the circuit board 333 in the PPG detection module 330 .
  • FIG. 5 shows a schematic three-dimensional exploded view of another detection device 300 provided in the embodiment of the present application.
  • the ECG electrodes 320 may be disposed on multiple surfaces of the transparent cover 310 facing different directions.
  • the two large surfaces of the light-transmitting cover 310 are opposite first surface 311 and second surface 312 , which are respectively the side facing the user's finger and the side facing away from the user's finger in the light-transmitting cover 310 .
  • the ECG electrodes 320 located on the first surface 311 of the light-transmitting cover 310 may completely cover the first surface 311, or, as shown in FIG.
  • the ECG electrode 320 can also form two openings for respectively corresponding to the light source 331 and the light detector 332 in the PPG detection module 330 .
  • the ECG electrodes 320 are also extended to the second surface 312 of the light-transmitting cover plate 310 and the side surfaces of the light-transmitting cover plate 310 except the first surface 311 and the second surface 312. on the first surface 311 and the second surface 312 .
  • the side may be an annular band-shaped side.
  • the ECG electrodes 320 located on the second surface 312 of the light-transmitting cover plate 310 may only cover a partial area of the second surface 312, and the size of the area is intended to form a stable and reliable circuit with other electrical components through this part of the ECG electrodes 320.
  • the electrical connection is enough, and there is no need to design too large to cause waste of cost.
  • the ECG electrodes 320 located on the side of the light-transmitting cover plate 310 may also only cover a partial area of the side, and the size of the area is designed to be able to reliably connect the ECG electrodes 320 located on the first surface 312 and the ECG electrodes located on the second surface 312 320 is enough, and there is no need to design too large to cause waste of cost.
  • the ECG electrodes 320 located on the first surface 311 , the second surface 312 and the side surfaces of the light-transmitting cover plate 310 are integrated rather than discretely arranged.
  • the ECG electrodes 320 located on the first surface 311 , the second surface 312 and the side surfaces of the light-transmitting cover 310 can be uniformly formed on the light-transmitting cover 310 through a coating process.
  • the detection device 300 may include: an electrical connector 350 for connecting the ECG electrodes 320 on the second surface 312 of the light-transmitting cover plate 310 and the circuit board 333, so as to realize the connection between the ECG electrodes 320 and the circuit board 333. electrical connection.
  • the ECG electrodes 320 located on the second surface 312 of the light-transmitting cover 310 are connected to the circuit board 333 in the PPG detection module 330 through the electrical connector 350, so that the second surface of the light-transmitting cover 310 can realize
  • the ECG electrode 320 on the first surface 311 transmits the detected electrical signal of the user's finger to the electrical connector 350 through the ECG electrode 320 located on the side of the light-transmitting cover 310 and the second surface 312, and then to the circuit board 333 and subsequent
  • the processor detects and obtains the user's ECG signal.
  • the electrical connector 350 may be a column structure including conductive material.
  • the electrical connector 350 may be arranged between the light source 331 and the photodetector 332, so as to block at least part of the light signal emitted by the light source 331 from directly entering the photodetector 332, so as to improve the photodetector 332's response to reflections from the user's fingers or The detection effect of the scattered effective light signal, thereby improving the detection accuracy of the detection device 300 for biometric information.
  • the light source 331 may include two point light sources, and the two point light sources may respectively emit light signals of different wavelengths, for example, visible light signals of two colors, or visible light signals and infrared light signals. light signal.
  • the ECG electrode 320 is also extended and arranged in the transparent cover 310 opposite to the first surface 311.
  • the circuit board 333 in the module 330 is detected.
  • this embodiment is easy to implement, ECG electrodes 320 can be directly formed on multiple surfaces of the light-transmitting cover plate 310 through a coating process, and the connection between the ECG electrodes 320 and the circuit board 333 can also be realized by using the electrical connector 350 with a simple structure .
  • this technical solution there is no need to use other metal wires to realize the electrical signal transmission of the ECG electrodes 320, the overall appearance of the detection device 300 is better and it is beneficial to the waterproof design of the detection device 300, thereby improving user experience.
  • FIG. 6 shows a schematic three-dimensional exploded view of another detection device 300 provided in the embodiment of the present application.
  • the PPG detection module 330 may further include: a support member 334 disposed between the light-transmitting cover plate 310 and the circuit board 333, a hollow cavity is formed in the support member 334, The hollow cavity is used to accommodate and protect the light source 331 and the light detector 332 .
  • the supporting member 334 may have a certain rigidity and strength, and it may be used to support and arrange the transparent cover 310 on the side of the circuit board 333 facing the user's finger, so that the transparent cover 310 can bear the pressure of the user's finger pressure.
  • a hollow cavity may be formed in the supporting member 334 for accommodating and protecting the light source 331 and the light detector 332 .
  • the support member 334 can be a hollow cylinder structure, and its shape and size can be adapted to the light-transmitting cover plate 310 and the circuit board 333 .
  • Two ends of the support member 334 of the hollow cylindrical structure are respectively connected to the transparent cover 310 and the circuit board 333 , so that the support 334 , the transparent cover 310 and the circuit board 333 jointly form a closed cavity.
  • the light source 331 and the light detector 332 are arranged in the airtight cavity, which has high stability and reliability.
  • the supporting member 334 can be made of metal material or also can be made of non-metal material, such as plastic or the like.
  • the support member 334 can have a high aesthetic quality, so that the appearance of the detection device 300 can be further optimized.
  • the support member 334 of the metal material can also be used as an electrostatic discharge (Electro-Static discharge, ESD) component to protect devices such as the light source 331, the photodetector 332, and improve the reliability of the detection device 300. sex.
  • ESD electrostatic discharge
  • the detection device 300 may further include: a temperature detection module 360 configured to detect the temperature of the user's finger on the transparent cover 310 .
  • the temperature detection module 360 is integrated in the detection device 300 of the embodiment of the present application, which not only can realize the user's body temperature detection, but also makes the functions that the detection device 300 can realize more diversified, and related studies have found that human blood sugar detection is also related to The body temperature detection results are strongly correlated. Through the body temperature detected by the temperature detection module 360 and the PPG signal detected by the PPG detection module 330 , more accurate blood sugar detection results can be obtained, further improving the overall performance of the detection device 300 .
  • the temperature detection module 360 may include a temperature sensor, which includes but is not limited to: a negative temperature (Negative Temperature Coefficient, NTC) sensor and the like.
  • a temperature sensor which includes but is not limited to: a negative temperature (Negative Temperature Coefficient, NTC) sensor and the like.
  • NTC Negative Temperature Coefficient
  • the temperature detection module 360 can be arranged on the second surface 311 of the light-transmitting cover 310 facing away from the user's finger, so that the temperature result detected by the temperature detection module 360 is relatively precise.
  • the temperature detection module 360 can also be arranged on the circuit board 333 and electrically connected to the circuit board 333. In this embodiment, the installation method of the temperature detection module 360 is relatively simple and easy to implement. In addition, in order to transmit the temperature of the user's finger to the temperature detection module 360 , a heat conduction layer is disposed between the temperature detection module 360 and the second surface 312 of the transparent cover 310 for transmitting the temperature of the user's finger.
  • the detection device 300 mainly includes a light-transmitting cover plate 310, an ECG electrode 320 for detecting ECG signals, and a PPG detection module 330 for detecting PPG signals.
  • a light-transmitting cover plate 310 for detecting ECG signals
  • a PPG detection module 330 for detecting PPG signals.
  • the detection device 300 may further include: a pressure detection module 370 .
  • a pressure detection module 370 When the user's finger presses the light-transmitting cover plate 310, the ECG electrode 320, the PPG detection module 330 and the pressure detection module 370 work simultaneously to detect the ECG signal, PPG signal and pressure signal of the user's finger respectively, and the pressure signal can be used to assist the ECG signal and The biometric information detection of the PPG signal improves the accuracy of the biometric information detection.
  • FIG. 7 shows a schematic three-dimensional exploded view of another detection device 300 provided in the embodiment of the present application.
  • the detection device 300 may further include: a pressure detection module 370 disposed on the side of the transparent cover plate 310 away from the user's finger, when the user's finger presses the
  • the pressure detection module 370 is used to detect the pressing pressure between the user's finger and the ECG electrode 320 to obtain a pressure signal, the pressure signal, the PPG signal detected by the PPG detection module 330 and the ECG signal detected by the ECG electrode 320
  • the signals are used for common processing to obtain the user's biometric information.
  • the pressure detection module 370 and the PPG detection module 330 can be arranged side by side on the side of the transparent cover plate 310 away from the user's finger, and the two can be located on the same plane.
  • the pressure detection module 370 can also be stacked with the PPG detection module 330 .
  • the transparent cover 310 , the PPG detection module 330 and the pressure detection module 370 are stacked in sequence.
  • the information is transmitted to the pressure detection module 370 so that the pressure detection module 370 detects the pressing pressure between the user's finger and the ECG electrode 320 .
  • the pressure detection module 370 and the PPG detection module 330 are stacked so that the pressure signal detected by the pressure detection module 370 and the PPG signal detected by the PPG detection module 330 both correspond to the same part of the user's finger. With better correspondence, the biometric information obtained through detection of the pressure signal and the PPG signal with higher correspondence has higher accuracy.
  • the pressure detection module 370 includes a pressure sensor
  • the pressure sensor includes but not limited to: piezoelectric pressure sensor, piezoresistive pressure sensor, capacitive pressure sensor, inductive pressure sensor , or other types of pressure sensors, which are not specifically limited in this embodiment of the present application.
  • the pressure detection module 370 may be a cantilever beam type pressure detection module.
  • the pressure detection module 370 may include: a cantilever beam 371 and a strain gauge pressure sensor 372 , the cantilever beam 371 is an elastic element, and the strain gauge pressure sensor 372 is disposed on the surface of the cantilever beam 371 .
  • the contact pressure between the user's finger and the transparent cover 310 is transmitted to the cantilever beam 371 through the transparent cover 310 and the PPG detection module 330, so that the surface of the cantilever beam 371
  • the strain gauge pressure sensor 372 detects the contact pressure to form a pressure signal.
  • the detection device 300 can be made on the basis of high detection accuracy, and the overall structure of the detection device 300 is relatively Compactness is beneficial to the miniaturization development of the detection device 300 .
  • the cantilever beam pressure detection module 370 shown in FIG. 7 is only an example and not a limitation.
  • other types of pressure detection modules in the related art can also be used.
  • the present application The embodiment does not specifically limit this.
  • the PPG detection module 330 may further include: a first bracket 336 for fixedly installing the above-mentioned circuit board 333 .
  • the shape of the first bracket 336 can be adapted to the circuit board 333, so as to fully support the circuit board 333 and ensure the stability of components such as the light source 331 and the photodetector 332 on the circuit board 333. sex.
  • the PPG detection module 330 can also include: a flexible circuit board 335, one end of which is connected to the circuit board 333, and the other end can be connected to the detection device through a structure such as a connector The motherboard or other electrical components of the electronic equipment where 300 is located.
  • the flexible circuit board 335 has high flexibility and thin thickness, and can be bent so that it can be conveniently installed in electronic equipment.
  • the pressure detection module 370 may further include: a second bracket 373 and a protective cover 374 , wherein the second bracket 373 is used to install the above-mentioned cantilever beam 371 , and the protective cover 374 is fastened to the second bracket 372 , and used to protect the cantilever beam 371 and the strain gauge pressure sensor 372 on the cantilever beam 371 .
  • the second support 373 may be a frame-shaped structure, and the cantilever beam 371 may be installed in the frame-shaped support.
  • the dimensions of the first bracket 336 of the PPG detection module 330 can be adapted to the second bracket 373 , and the first bracket 336 can contact the cantilever beam 371 installed in the second bracket 373 .
  • the pressing pressure can be transmitted to the cantilever beam 371 in the pressure detection module 370 through the first bracket 336 in the PPG detection module 330, so that the strain gauge pressure sensor 372 on the cantilever beam 371 can carry out Detection of pressure signals.
  • the material of the second bracket 373 includes but not limited to metal material.
  • the second bracket 373 of the metal material can not only improve the aesthetics of the overall appearance of the detection device 300, but also can be used as a component for electrostatic discharge to protect the pressure sensor and other components in the pressure detection module 370, and improve the detection device 300. use reliability.
  • FIG. 7 shows an exploded schematic view of the detection device 300 .
  • FIG. 8 shows a schematic three-dimensional structural diagram of the detection device 300 .
  • the above-mentioned second bracket 373 and protective cover 373 can be used as the basic casing of the detection device 300, which can accommodate not only pressure sensors and other components, but also at least part of the PPG detection module 330, for example, can accommodate at least part of the first bracket 336 .
  • the PPG detection module 330 may include: a limit flange 3341 , when the user's finger presses the light-transmitting cover plate 310 , the PPG detection module 330 contacts the cantilever beam 371 , and The limiting flange 3341 can be abutted against the second bracket 373 to limit the pressure exerted by the user's finger on the cantilever beam 371 through the transparent cover plate 310 and the PPG detection module 330 .
  • the large pressure can be prevented from acting on the cantilever beam 371 in the pressure detection module 370 , thereby avoiding damage to the cantilever beam 371 caused by the large pressure, and ensuring the reliability of the detection device 300 .
  • the limiting flange 3341 may be formed on the support member 334 in the PPG detection module 330 .
  • the limiting flange 3341 can be formed on the periphery of the supporting member 334 .
  • the second bracket 373 limits the further pressing of the user's finger and can withstand a part of the pressing pressure of the user's finger. Therefore, through the cooperative design between the limiting flange 3341 and the second bracket 373 , it is possible to limit the user's finger from exerting too much pressure on the cantilever beam 371 , which affects the normal performance of the pressure detection.
  • the present application also provides an electronic device, and the electronic device may include the apparatus 300 for detecting biometric information in any one of the embodiments of the above application.
  • the electronic device may be a smart watch or a mobile phone.
  • the detection device 300 can be arranged on any surface of the electronic device, so that the user's finger can press the detection device 300 .
  • the detection device 300 may be disposed on the side of the electronic device.
  • FIG. 9 shows a schematic structural diagram of an electronic device 30 provided by an embodiment of the present application.
  • the electronic device 30 can be a smart watch, and the detection device 300 can be arranged on the side of the smart watch.
  • the overall shape of the detection device 300 may be relatively regular, and it may be more conveniently installed in electronic devices such as smart watches, and has a high degree of aesthetics.
  • the detection device 300 When the detection device 300 is arranged on the side of the smart watch, it can be regarded as a button on the side of the smart watch, which is convenient for users to press with their fingers.
  • the detection device 300 may also integrate other functions of the electronic device 30 in addition to the detection of biometric information.
  • the detection device 300 when used as a key, it can also realize the switch function of the electronic device, that is, the key of the detection device 300 can be used as the power key of the electronic device 30 at the same time.
  • the manufacturing cost of the electronic device 30 can be further reduced, which is conducive to the development of thinner, lighter and smaller electronic devices 30 .
  • the processing unit or processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the blood pressure detection device in the embodiment of the present application may further include a storage unit or a memory, and the memory may be a volatile memory or a non
  • the disclosed system, device and method can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

一种生物特征信息的检测装置(300)和电子设备(10)。生物特征信息的检测装置(300)包括：透光盖板(310)；ECG电极(320)，设置于透光盖板(310)朝向用户手指的第一表面(311)，用于接收用户手指的按压，并采集用户手指的电信号以形成ECG信号；PPG检测模块(330)，包括：光源(331)和光检测器(332)，设置于透光盖板(310)背离用户手指的一侧，当用户手指按压于ECG电极(320)时，光源(331)用于发射光信号至用户手指，光信号经过用户手指反射或者散射后被光检测器(332)接收，并用于处理形成PPG信号，PPG信号和ECG信号用于共同处理得到用户的生物特征信息。

Description

生物特征信息的检测装置和电子设备 技术领域
本申请涉及电子技术领域，并且更为具体地，涉及一种生物特征信息的检测装置和电子设备。
背景技术
近年来，随着电子技术的快速发展，如何实时监测人体的生物特征信息，特别是对于血压、血氧和心电图等方面的监测，以便于用户随时了解其自身的身体状态，以起到预防疾病的作用，受到人们的广泛关注。
因此，如何提高生物特征信息的检测结果的准确度，提升用户的使用体验，是一项亟待解决的技术问题。
发明内容
本申请提供一种生物特征信息的检测装置和电子设备，能够实现多种生物特征信号的同步检测，提升用户的使用体验。
第一方面，提供一种生物特征信息的检测装置，包括：透光盖板；心电图(ECG)电极，设置于该透光盖板朝向用户手指的第一表面，用于接收该用户手指的按压，并采集该用户手指的电信号以形成ECG信号；光电容积脉搏波描记(PPG)检测模块，包括：光源和光检测器，设置于该透光盖板背离该用户手指的一侧，当该用户手指按压于该ECG电极时，该光源用于发射光信号至该用户手指，该光信号经过该用户手指反射或者散射后被该光检测器接收，并用于处理形成PPG信号，该PPG信号和该ECG信号用于共同处理得到用户的生物特征信息。
通过本申请实施例的技术方案，生物特征信息的检测装置同时包括ECG电极和PPG检测模块，其中，ECG电极设置于透光盖板朝向用户手指的第一表面，而PPG检测模块设置于透光盖板背离用户手指的一侧，在用户手指按压于透光盖板时，ECG电极和PPG检测模块可同步工作，并分别检测得到用户手指的ECG信号和PPG信号，该ECG信号和PPG信号用于共同处理得到用户的生物特征信息，例如血压信息等，可以提高检测的准确度。在此基础上，一方面，用户仅通过单个手指的单次按压即可实现生物特征信 息的检测，可以便于用户操作且提升用户的使用体验，另一方面，ECG电极和PPG检测模块也不需要分别设置在电子设备的不同位置，从而可以节约生物特征信息的检测装置在电子设备中占用的空间，在提升电子设备美观度的同时，还有利于电子设备轻薄化和小型化的发展。
在一些可能的实施方式中，该ECG电极为采用镀膜工艺形成于该透光盖板的该第一表面的金属电极。
在该实施方式的技术方案中，可以采用镀膜工艺在透光盖板的第一表面沉积制备一层厚度较薄的金属层以形成ECG电极。在实现导电功能的同时，不仅占用空间较小，还可以使得检测装置在朝向用户的表面具有较高的美观度，从而进一步提升了用户对于检测装置的使用体验，且进一步降低了检测装置在电子设备中所需占用的空间。
在一些可能的实施方式中，该镀膜工艺形成的ECG电极的厚度小于或等于5μm。
在一些可能的实施方式中，该ECG电极为透明电极，该ECG电极完全覆盖该透光盖板的该第一表面。
在该实施方式的技术方案中，该透明的ECG电极基本不会影响光信号的通过，因此基本不会影响PPG检测模块的检测功能。在保证PPG检测模块的检测功能的基础上，该透明的ECG电极可完全覆盖透光盖板的第一表面，而不需要在该透明的ECG电极上再进行开孔等额外处理，可以提高ECG电极的加工效率，降低ECG电极的制造成本。
在一些可能的实施方式中，该ECG电极为非透明电极，该ECG电极中形成有开孔，该开孔对应于该光源和该光检测器设置。
在该实施方式的技术方案中，在非透明的ECG电极中设置开孔，使得该ECG电极的设置不会对PPG检测模块的检测功能造成影响，同步实现ECG检测功能和PPG检测功能。与此同时，ECG电极为非透明的金属电极，可以使得检测装置内部的大部分结构对用户不可见，从而优化检测装置的外观，进一步提升用户的使用体验。
在一些可能的实施方式中，该PPG检测模块还包括：电路板，支撑并电连接该光源和该光检测器，用于传输该光源和该光检测器的电信号；该电路板还电连接至该ECG电极，用于传输该ECG电极的电信号。
通过该实施方式的技术方案，可以利用同一个电路板实现检测装置中多 个检测部件的信号传输，可以降低检测装置的制造成本，还有利于压缩检测装置的质量和体积。在检测装置实现多种检测功能的基础上，有利于其轻薄化和小型化的发展。
在一些可能的实施方式中，该ECG电极还延伸设置于该透光盖板中背离该用户手指的第二表面以及该透光盖板中除该第一表面和该第二表面以外的侧面；该检测装置还包括：电连接件，连接位于该第二表面的该ECG电极与该电路板。
在该实施方式的技术方案中，ECG电极除了设置于透光盖板朝向用户的第一表面以外，ECG电极还延伸设置于透光盖板中与第一表面相对的第二表面以及透光盖板中除第一表面和第二表面以外的侧面，其中，位于透光盖板的第二表面的ECG电极通过电连接件连接至PPG检测模块中的电路板。一方面，该实施方式可易于实现，可通过镀膜工艺直接在透光盖板的多个表面形成ECG电极，也可利用结构简单的电连接件实现ECG电极与电路板的连接。另一方面，通过该技术方案，无需采用其它的金属连线实现ECG电极的电信号传输，检测装置的整体外观较优且有利于检测装置的防水设计，从而能够提升用户体验。
在一些可能的实施方式中，该电连接件位于该光源和该光检测器之间，以阻挡该光源发射的至少部分光信号直接进入该光检测器中。
在该实施方式的技术方案中，电连接件可设置于光源和光检测器之间，以阻挡光源发射的至少部分光信号直接进入光检测器中，提高光检测器对经过用户手指反射或散射的有效光信号的检测效果，从而提升检测装置对生物特征信息的检测准确性。
在一些可能的实施方式中，该PPG检测模块还包括：支撑件，设置于该透光盖板与该电路板之间，该支撑件中形成有空心腔体，该空心腔体用于容纳和保护该光源和光检测器。
在一些可能的实施方式中，该检测装置还包括：温度检测模块，设置于该电路板，并朝向该透光盖板，该温度检测模块通过导热层连接至该透光盖板，用于检测该透光盖板上该用户手指的温度。
在一些可能的实施方式中，该检测装置还包括：温度检测模块，设置于该透光盖板背离该用户手指的第二表面，用于检测该透光盖板上该用户手指的温度。
在该实施方式的技术方案中，检测装置中集成设置温度检测模块，不仅可以实现用户的体温检测，使得检测装置可实现的功能更加多元化，而且相关研究发现，人体血糖检测也与体温检测结果强相关，通过该温度检测模块检测得到的人体温度、以及上述PPG检测模块检测得到的PPG信号，可以得到较为准确的血糖检测结果，进一步提升检测装置的整体性能。
在一些可能的实施方式中，该检测装置还包括：压力检测模块，设置于该透光盖板背离该用户手指的一侧，当该用户手指按压于该ECG电极时，该压力检测模块用于检测该用户手指与该ECG电极之间的按压压力得到压力信号；该压力信号、该PPG信号和该ECG信号用于共同处理得到用户的生物特征信息。
在该实施方式的技术方案中，检测装置中集成设置压力检测模块。在用户手指按压透光盖板时，ECG电极、PPG检测模块以及压力检测模块同时工作，分别检测用户手指的ECG信号、PPG信号以及压力信号，该压力信号可用于辅助ECG信号和PPG信号的生物特征信息检测，提高该生物特征信息检测的准确性。
在一些可能的实施方式中，该透光盖板、该PPG检测模块与该压力检测模块依次堆叠设置，当该用户手指按压于该ECG电极时，按压压力通过该透光盖板以及该PPG检测模块传递至该压力检测模块，以使得该压力检测模块检测该用户手指与该ECG电极之间的按压压力。
在该实施方式的技术方案中，压力检测模块与PPG检测模块堆叠设置，可以使得压力检测模块检测的压力信号和PPG检测模块检测的PPG信号均对应于用户手指的同一部位，两者之间具有更好的对应性，通过该对应性较高的压力信号和PPG信号检测得到的生物特征信息具有更高的准确度。
在一些可能的实施方式中，该压力检测模块包括：悬臂梁和应变式压力传感器，该悬臂梁为弹性元件，该应变式压力传感器设置于该悬臂梁的表面。
在一些可能的实施方式中，该压力检测模块还包括：框型支架，该悬臂梁安装于该框型支架中；该PPG检测模块包括：限位凸缘，当该用户手指按压于该透光盖板时，该PPG检测模块接触于该悬臂梁，且能够通过该限位凸缘抵接于该框型支架，以限制该用户手指通过该透光盖板和该PPG检测模块施加于该悬臂梁的压力。
通过该实施方式的技术方案，可以避免该较大的压力作用于压力检测模 块中的悬臂梁，从而避免该较大的压力造成悬臂梁的损坏，保证检测装置的使用可靠性。
第二方面，提供一种电子设备，包括：上述第一方面或第一方面中任一可能的实施方式中的生物特征信息的检测装置，该检测装置位于该电子设备的表面以便于用户手指按压。
在一些可能的实施方式中，该电子设备为智能手表，该检测装置设置于该智能手表的侧面。
通过在电子设备中设置上述第一方面的生物特征信息的检测装置，可以使得电子设备可同时检测得到用户手指的ECG信号和PPG信号，该ECG信号和PPG信号用于共同处理得到用户的生物特征信息，例如血压信息等，可以提高检测的准确度。在此基础上，一方面，用户仅通过单个手指在电子设备上的单次按压即可实现生物特征信息的检测，可以便于用户操作且提升用户的使用体验，另一方面，ECG电极和PPG检测模块也不需要分别设置在电子设备的不同位置，从而可以节约生物特征信息的检测装置在电子设备中占用的空间，在提升电子设备美观度的同时，还有利于电子设备轻薄化和小型化的发展。
附图说明
图1为本申请中生物特征信息的检测装置适用的一种电子设备的结构框图。
图2为一种智能手表的示意图。
图3为本申请实施例提供的一种生物特征信息的检测装置的示意性结构图。
图4为本申请实施例提供的另一生物特征信息的检测装置的示意性结构图。
图5为本申请实施例提供的另一生物特征信息的检测装置的示意性立体爆炸图。
图6为本申请实施例提供的另一生物特征信息的检测装置的示意性立体爆炸图。
图7为本申请实施例提供的另一生物特征信息的检测装置的示意性立体爆炸图。
图8为本申请实施例提供的另一生物特征信息的检测装置的立体结构示意图。
图9为本申请实施例提供的电子设备的一种示意性结构图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
图1示出了本申请中生物特征信息的检测装置适用的一种电子设备的结构框图。
如图1所示，电子设备10可以包括总线110、处理器120、存储器130、输入/输出接口140、显示器150、通信接口160和生物特征信息的检测装置170。
总线110可以包括实现电子设备10中各部件之间传输通信(例如，控制消息或数据)的电路。作为示例，该总线110可包括：串行外设接口(Serial Peripheral Interface，SPI)通信总线，其用于实现生物特征信息的检测装置170与处理器120之间的数据通信。或者该总线110还可以包括其它类型的通信总线，本申请实施例对此不做具体限定。
处理器120可以包括一种或者多种类型的数据处理器，用于执行数据处理。作为示例，该处理器120可为微控制单元(Microcontroller Unit，MCU)、中央处理器(Central Processing Unit，CPU)或者其它类型的处理器，本申请实施例对此不做具体限定。
存储器130可以包括易失性存储器和/或非易失性存储器。其可以存储电子设备10中与其它功能部件有关的指令或数据。
输入/输出接口140可以用于接收从用户或外部设备输入的指令或数据，然后传输至电子设备10中的其他功能部件，或者可以将电子设备10中的其他功能部件产生的指令或数据输出给用户或外部设备。
显示器150可以包括例如液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode，OLED)显示器或者是其它类型的显示器。显示器150可以为用户显示各种类型的内容，例如文本、图像、视频、图标等等。进一步地，显示器150可以包括触摸屏，用户可以通过触摸屏输入相关的指令信息。
通信接口160可以用于实现电子设备10与外部设备，例如网络服务器 或者其它电子设备之间的通信。作为示例，通信接口160可以通过无线或有线通信连接到通信网络，与外部设备进行通信。其中，无线通信包括但不限于是蜂窝通信或者是短距离通信。有线通信包括但不限于是通用串行总线(Universal Serial Bus，USB)、高清多媒体接口(High Definition Multimedia Interface，HDMI)、推荐标准232(RS-232)或者其它通信方式中的至少一种。
生物特征信息的检测装置170用于实现检测用户的生物特征信息，该生物特征信息包括但不限于是：心率、血压、呼吸频率、血氧饱和度、体温、血糖等参数信息，其可以通过测试经过用户手指后的光信号，并从中获取指纹图像、脉搏波等生物特征信号，换言之，本申请实施例中的生物特征信息的检测装置170可以用于检测用户的生物特征信号，基于对生物特征信号的计算分析，得到一种或者多种用户的生物特征信息。
在一些实施例中，电子设备10可以省略以上部件中的至少一个部件，或者可以进一步包括其他部件，此处不再详细赘述。
可选地，在本申请中，电子设备10可以为智能可穿戴设备、手机，平板电脑、移动医疗设备等等，其中，智能可穿戴设备可以包括以下设备中的至少一项：手表、手镯、脚链、项链、眼镜或者头戴式设备；移动医疗设备可以包括以下设备中的至少一项：心率监测设备、血压测量设备、体温测量设备等等，本申请实施例对此不做限定。
图2示出了一种智能手表的示意图。
如图2所示，在该智能手表20中，其侧面设置有第一按键201和第二按键202。其中，第一按键201中可设置有第一生物特征信息的检测装置，该第一生物特征信息的检测装置可用于检测用户的血压、心率、血氧等生物特征信息。作为示例，该第一生物特征信息的检测装置201中可包括：光源和光检测器，光源向按压于第一按键201的用户手指发射光信号，该光信号经过用户手指内的血管反射或散射后，可被光检测器接收。其中，经过用户手指内的血管反射或散射后的光信号可携带有用户的血压、心率、血氧等信息，其被光检测器接收后，经过光电转换以及相关信号处理，可形成光电容积脉搏波描记(Photo Plethysmography，PPG)信号，该PPG信号经过进一步的算法处理后，可得到用户的血压、心率、血氧等生物特征信息。
另外，第二按键202中可设置有第二生物特征信息的检测装置，该第二 生物特征信息的检测装置可用于检测用户的心电图(Electrocardiography，ECG)。作为示例，该第二生物特征信息的检测装置可包括：ECG电极，当用户手指按压于第二按键202时，该ECG电极可用于采集用户手指处的电信号，该电信号经过放大器放大以及相关信号处理之后，可得到用户的心电图波形。由于心电图波形不仅可以反映用户的心脏机能状态，还可以与上述PPG信号结合，通过算法确定得到更为准确的用户血压以及其它人体心血管系统相关的生物特征信息。
在该实施方式中，第一按键201和第二按键202分别位于智能手表20的两侧，当用户进行生物特征信息检测时，需分别用两个手指按压在第一按键201和第二按键202上。一方面，这种方式对于用户来说操作复杂度较高，不仅需要两个手指进行按压，而且两个手指的按压操作需要保持较高的同步性，否则不利于提高生物特征信息检测结果的准确度；另一方面，这种方式需要占用较大的空间，且外观美观度不高。
鉴于此，本申请提出一种生物特征信息的检测装置，可将上述第一生物特征信息的检测装置和第二生物特征信息的检测装置集成设置，用户通过单个手指的按压，即可实现心电图、血压等多种生物特征信息的同步检测。
图3示出了本申请实施例提供的一种生物特征信息的检测装置300的示意性结构图。可选地，在一些实施方式中，该生物特征信息的检测装置300可为上文图1所示实施例中的生物特征信息的检测装置170，其可用于设置于上文图1所示的电子设备10或图2所示的智能手表20中。
如图3所示，该生物特征信息的检测装置300包括：
透光盖板310；
ECG电极320，设置于透光盖板310朝向用户手指的第一表面311，用于接收用户手指的按压，并采集用户手指的电信号以形成ECG信号；
PPG检测模块330，包括：光源331和光检测器332，设置于透光盖板310背离用户手指的一侧。当用户手指按压于ECG电极320时，光源331用于发射光信号至用户手指，该光信号经过用户手指反射或者散射后被光检测器332接收，并用于处理形成PPG信号，该PPG信号和上述ECG信号用于共同处理得到用户的生物特征信息。
通过本申请实施例的技术方案，生物特征信息的检测装置300同时包括ECG电极320和PPG检测模块330，其中，ECG电极320设置于透光盖板 310朝向用户手指的第一表面311，而PPG检测模块330设置于透光盖板310背离用户手指的一侧，在用户手指按压于透光盖板310时，ECG电极320和PPG检测模块可同步工作，并分别检测得到用户手指的ECG信号和PPG信号，该ECG信号和PPG信号用于共同处理得到用户的生物特征信息，例如心电和血压信息，由于心电和血压方面的疾患都是人体心血管系统内病变的外在表现，在本质上是相关的，因而同步记录心电和血压的动态信息并客观地利用二者之间的内在关联，可以提高检测的准确度。在此基础上，一方面，用户仅通过单个手指的单次按压即可实现生物特征信息的检测，可以便于用户操作且提升用户的使用体验，另一方面，ECG电极320和PPG检测模块330也不需要分别设置在电子设备的不同位置，从而可以节约生物特征信息的检测装置300在电子设备中占用的空间，在提升电子设备美观度的同时，还有利于电子设备轻薄化和小型化的发展。
具体地，在本申请实施例中，PPG检测模块330中的光源331包括但不限于是点状光源，例如，发光二极管(Light-Emitting Diode，LED)，激光二极管(Laser Diode，LD)或者红外发射二极管，其还可以为线状光源或者面状光源。另外，光源331的数量可以为一个或多个，该一个或多个光源331可用于发射一个或者多个目标波段的光信号，该目标波段的光信号可用于穿过用户手指，并携带有用户手指中血管、血液等相关的生物特征信号。可选地，该目标波段的光信号包括但不限于是可见光信号和/或红外光信号。作为示例，目标波段可以是红光波段或者是绿光波段。本申请实施例对光源331的类型、数量以及发射光波长均不做具体限定。
具体地，该光检测器332包括但不限于是光电二极管(Photodiode，PD)、光电三极管等等，其用于进行光电转换，将接收的经过手指反射或散射后的光信号转换为对应的电信号。可选地，除了光检测器332以外，PPG检测模块330还可包括光学元件以及处理电路。作为示例，该光学元件可以设置在PD上方，用于引导更多的有效光信号进入至PD中，以提高PD的光检测效能。该处理电路可以用于对PD处理得到的电信号进行信号处理，以得到信号质量更好的PPG信号。
为了使得PPG检测模块330中的光源331发射的光信号能够到达用户手指，且经过用户手指后的光信号能够到达PPG检测模块330中的光检测器332，用于承受用户手指的界面需为透光界面，即本申请实施例中的透光 盖板310。具体地，该透光盖板310透过的光信号波长可根据PPG检测模块330中的光源331发射的光信号的波长确定。作为一种示例，PPG检测模块330中光源331用于发射可见光，对应的，透光盖板310可用于通过可见光。
可选地，在一些实施方式中，透光盖板310可为透明材料，例如玻璃或者树脂等透光率高的材料，可减少光信号经过盖板时的衰减，提高PPG检测模块330接收的光信号强度。
可选地，在一些实施方式中，ECG电极320可为采用镀膜工艺形成于透光盖板310的第一表面311的金属电极。具体地，该镀膜工艺包括但不限于是：真空镀膜工艺，例如物理气相沉积(Physical Vapor Deposition，PVD)镀膜工艺、化学气相沉积(Chemical Vapor Deposition，CVD)镀膜工艺等等。
通过该实施方式，采用该真空镀膜工艺，可以在真空环境下，在透光盖板310的第一表面311沉积制备一层厚度较薄的金属层以形成ECG电极320，在实现导电功能的同时，不仅占用空间较小，还可以使得检测装置300在朝向用户的表面具有较高的美观度，从而进一步提升了用户对于检测装置300的使用体验，且进一步降低了检测装置300在电子设备中所需占用的空间。
作为示例而非限定，该ECG电极320的厚度可小于或等于5μm。
可选地，在一些实施方式中，该ECG电极320可为非透明的金属电极，例如，该ECG电极320的材料包括但不限于是金属铬(Cr)材料。在该情况下，为了实现PPG检测模块330的检测功能，该ECG电极320中需设置有开孔，且该开孔对应于光源331和光检测器332设置。
作为一种示例，光源331和光检测器332可与ECG电极320中的同一开孔对应，该开孔可完全覆盖于光源331和光检测器332。或者，作为另一种示例，光源331和光检测器332可分别与ECG电极320中的两个开孔对应，该两个开孔分别覆盖于光源331和光检测器332。
通过本申请实施例的技术方案，在非透明的ECG电极320中设置开孔，使得该ECG电极320的设置不会对PPG检测模块330的检测功能造成影响，同步实现ECG检测功能和PPG检测功能。与此同时，ECG电极320为非透明的金属电极，可以使得检测装置300内部的大部分结构对用户不可见，从而优化检测装置300的外观，进一步提升用户的使用体验。
在另一些实施方式中，ECG电极320也可为透明电极，该透明电极基本 不会影响光信号的通过，因此基本不会影响PPG检测模块330的检测功能。在保证PPG检测模块330的检测功能的基础上，该透明的ECG电极320可完全覆盖透光盖板310的第一表面311，而不需要在该透明的ECG电极320上再进行开孔等额外处理，可以提高ECG电极320的加工效率，降低ECG电极320的制造成本。
作为示例而非限定，该透明的ECG电极的材料包括但不限于是：氧化铟锡(Indium tin oxide，ITO)。
图4示出了本申请实施例提供的另一生物特征信息的检测装置300的示意性结构图。
如图4所示，在本申请实施例中，PPG检测模块330还包括：电路板333，用于支撑并电连接上述光源331和光检测器332，其中，光源331和光检测器332设置于电路板333朝向透光盖板310的一面。
具体地，在本申请实施例中，电路板333在支撑光源331和光检测器332的同时，还用于实现光源331和光检测器332的电信号传输。其中，光源331的电信号包括但不限于是：用于控制光源331工作状态的控制信号，光检测器332的电信号包括但不限于是：用于控制光检测器332工作状态的控制信号以及光检测器332接收光信号后检测得到的电信号。
另外，电路板333包括但不限于是印刷电路板(Printed Circuit Board，PCB)、柔性电路板(Flexible Printed Circuit，FPC)或者其它类型的电路板。除了电连接于该光源331和光检测器332以外，该电路板333还可进一步的通过电连接装置(例如，柔性电路板)连接至电子设备的处理器或者是控制器中，处理器或者控制器产生的控制信号可通过电路板333传输至光源331和光检测器332，控制二者的工作时序。另外，光检测器332接收光信号后产生的电信号也通过该电路板333传输至电子设备的处理器或者是控制器，以进行数据处理形成PPG信号并进行生物特征信息的检测。
可选地，电路板333除了电连接至光源331和光检测器332，并用于实现光源331和光检测器332的电信号传递以外，还可以电连接至上述ECG电极320，以实现该ECG电极320的电信号传递。其中，该ECG电极320的电信号包括但不限于是：ECG电极320检测得到的用户手指的电信号。
通过该实施方式，可以利用同一个电路板333实现检测装置300中多个检测部件的信号传输，可以降低检测装置300的制造成本，还有利于压缩检 测装置300的质量和体积。在检测装置300实现多种检测功能的基础上，有利于其轻薄化和小型化的发展。
为了实现位于透光盖板310朝向用户手指一侧的ECG电极320与位于透光盖板310背离用户手指一侧的电路板330相互电连接，在本申请实施例中，ECG电极320除了可设置于透光盖板310朝向用户手指一侧的第一表面311以外，还可以延伸设置于透光盖板310的侧面以及透光盖板310背离用户手指一侧的第二表面312。另外，检测装置300还可包括电连接件350，用于连接位于第二表面312的ECG电极320与PPG检测模块330中的电路板333。
图5示出了本申请实施例中提供的另一检测装置300的示意性立体爆炸图。
如图5所示，ECG电极320可设置于透光盖板310朝向不同方向的多个表面。其中，透光盖板310的两个大面为相对设置的第一表面311和第二表面312，其分别为透光盖板310中朝向用户手指的一面以及背离用户手指的一面。
在本申请实施例中，位于透光盖板310的第一表面311的ECG电极320可完全覆盖第一表面311，或者，如图5所示，位于透光盖板310的第一表面311的ECG电极320也可形成两个开孔，用于分别对应PPG检测模块330中的光源331和光检测器332。
另外，除第一表面311以外，ECG电极320还延伸设置于透光盖板310的第二表面312以及透光盖板310中除第一表面311和第二表面312以外的侧面，该侧面连接于第一表面311和第二表面312。在图5所示实施例中，该侧面可为环形带状侧面。
可选地，位于透光盖板310的第二表面312的ECG电极320可仅覆盖第二表面312的部分区域，其面积大小旨在能够通过该部分的ECG电极320与其它电学部件形成稳定可靠的电连接即可，而不需要设计的太大造成成本的浪费。
类似地，位于透光盖板310的侧面的ECG电极320也可仅覆盖侧面的部分区域，其面积大小旨在能够可靠连接位于第一表面312的ECG电极320以及位于第二表面312的ECG电极320即可，而不需要设计得太大造成成本的浪费。
可以理解的是，本申请实施例中，位于透光盖板310的第一表面311、第二表面312和侧面的ECG电极320为一体结构，而非离散设置。该位于透光盖板310的第一表面311、第二表面312和侧面的ECG电极320可统一通过镀膜工艺制备形成于透光盖板310。
进一步地，如图5所示，检测装置300可包括：电连接件350，连接位于透光盖板310的第二表面312的ECG电极320与电路板333，从而实现ECG电极320与电路板333的电连接。
具体地，通过该实施方式，位于透光盖板310的第二表面312的ECG电极320通过电连接件350连接至PPG检测模块330中的电路板333，可实现位于透光盖板310的第一表面311的ECG电极320将检测到的用户手指的电信号，通过位于透光盖板310的侧面以及第二表面312的ECG电极320传递至电连接件350，再传递至电路板333乃至后续的处理器，进而检测得到用户的ECG信号。
可选地，如图5所示，该电连接件350可为包括导电材料的柱体结构。可选地，该电连接件350可设置于光源331和光检测器332之间，以阻挡光源331发射的至少部分光信号直接进入光检测器332中，提高光检测器332对经过用户手指反射或散射的有效光信号的检测效果，从而提升检测装置300对生物特征信息的检测准确性。
作为示例，在图5所示实施例中，光源331可包括两个点光源，该两个点光源可分别发射不同波长的光信号，例如，两种颜色的可见光信号，或者，可见光信号以及红外光信号。
在本申请实施例的技术方案中，ECG电极320除了设置于透光盖板310朝向用户的第一表面311以外，ECG电极320还延伸设置于透光盖板310中与第一表面311相对的第二表面312以及透光盖板310中除第一表面311和第二表面312以外的侧面，其中，位于透光盖板310的第二表面312的ECG电极320通过电连接件350连接至PPG检测模块330中的电路板333。一方面，该实施方式可易于实现，可通过镀膜工艺直接在透光盖板310的多个表面形成ECG电极320，也可利用结构简单的电连接件350实现ECG电极320与电路板333的连接。另一方面，通过该技术方案，无需采用其它的金属连线实现ECG电极320的电信号传输，检测装置300的整体外观较优且有利于检测装置300的防水设计，从而能够提升用户体验。
图6示出了本申请实施例中提供的另一检测装置300的示意性立体爆炸图。
如图6所示，在本申请实施例中，PPG检测模块330还可包括：支撑件334，设置于透光盖板310与电路板333之间，该支撑件334中形成有空心腔体，该空心腔体用于容纳和保护光源331和光检测器332。
具体地，该支撑件334可具有一定的刚度和强度，其可用于将透光盖板310支撑设置于电路板333朝向用户手指的一侧，以使得透光盖板310能够承受用户手指的按压压力。
可选地，该支撑件334中可形成有空心腔体，用于容纳和保护光源331和光检测器332。作为示例，如图6所示，支撑件334可为空心柱体结构，其外形和尺寸可适配于透光盖板310和电路板333。该空心柱体结构的支撑件334的两端分别连接透光盖板310和电路板333，以使得该支撑件334、透光盖板310和电路板333共同形成密闭腔体。光源331和光检测器332设置于该密闭腔体中，具有较高的稳定性和可靠性。
可选地，该支撑件334可以为金属材料或者也可以为非金属材料，例如塑料等。在支撑件334为金属材料的情况下，其可具有较高的美观度，使得检测装置300的外观能够得到进一步的优化。与此同时，该金属材料的支撑件334还可用于作为静电释放(Electro-Static discharge，ESD)的部件，对光源331、光检测器332等器件起到保护作用，提升检测装置300的使用可靠性。
可选地，如图6所示，在本申请实施例中，检测装置300还可进一步包括：温度检测模块360，用于检测透光盖板310上用户手指的温度。
具体地，在本申请实施例的检测装置300中集成设置温度检测模块360，不仅可以实现用户的体温检测，使得检测装置300可实现的功能更加多元化，而且相关研究发现，人体血糖检测也与体温检测结果强相关，通过该温度检测模块360检测得到的人体温度、以及上述PPG检测模块330检测得到的PPG信号，可以得到较为准确的血糖检测结果，进一步提升检测装置300的整体性能。
可选地，温度检测模块360可包括温度传感器，该温度传感器包括但不限于是：负温度(Negative Temperature Coefficient，NTC)传感器等等。为了便于检测用户手指的温度，在一些实施方式中，该温度检测模块360可设 置于透光盖板310中背离用户手指的第二表面311，从而使得该温度检测模块360检测得到的温度结果较为准确。
在另一些实施方式中，该温度检测模块360也可设置于电路板333上，并与电路板333电连接，该实施方式下，温度检测模块360的安装方式较为简单且易于实现。另外，为了使得用户手指的温度可传递至温度检测模块360，该温度检测模块360与透光盖板310的第二表面312之间设置有导热层，用于传递用户手指的温度。
在上文申请实施例中，检测装置300主要包括透光盖板310、用于检测ECG信号的ECG电极320以及用于检测PPG信号的PPG检测模块330，在实际应用过程中，用户手指对透光盖板310按压的过程中，按压压力的变化可能会对PPG信号的检测造成干扰和影响，不利于用户生物特征信息的检测。
鉴于此，检测装置300还可进一步包括：压力检测模块370。在用户手指按压透光盖板310时，ECG电极320、PPG检测模块330以及压力检测模块370同时工作，分别检测用户手指的ECG信号、PPG信号以及压力信号，该压力信号可用于辅助ECG信号和PPG信号的生物特征信息检测，提高该生物特征信息检测的准确性。
图7示出了本申请实施例中提供的另一检测装置300的示意性立体爆炸图。
如图7所示，在上述图6所示实施例的基础上，检测装置300还可进一步包括：压力检测模块370，设置于透光盖板310背离用户手指的一侧，当用户手指按压于ECG电极320时，该压力检测模块370用于检测用户手指与ECG电极320之间的按压压力得到压力信号，该压力信号、上述PPG检测模块330检测得到的PPG信号和ECG电极320检测得到的ECG信号用于共同处理得到用户的生物特征信息。
可选地，在一些实施方式中，该压力检测模块370可与PPG检测模块330并排设置于透光盖板310背离用户手指的一侧，二者可位于同一平面上。
可选地，在另一些实施方式中，该压力检测模块370也可与PPG检测模块330堆叠设置。例如，如图7所示，透光盖板310、PPG检测模块330和压力检测模块370依次堆叠设置，当用户手指按压于ECG电极320时，按压压力通过透光盖板310以及PPG检测模块330传递至压力检测模块370， 以使得压力检测模块370检测用户手指与ECG电极320之间的按压压力。
在该实施方式中，压力检测模块370与PPG检测模块330堆叠设置，可以使得压力检测模块370检测的压力信号和PPG检测模块330检测的PPG信号均对应于用户手指的同一部位，两者之间具有更好的对应性，通过该对应性较高的压力信号和PPG信号检测得到的生物特征信息具有更高的准确度。
可选地，在本申请实施例中，压力检测模块370中包括压力传感器，该压力传感器包括但不限于是：压电式压力传感器，压阻式压力传感器、电容式压力传感器、电感式压力传感器、或者其它类型的压力传感器，本申请实施例对此也不做具体限定。
作为一种示例，压力检测模块370可为悬臂梁式压力检测模块。例如，如图7所示，压力检测模块370可包括：悬臂梁371和应变式压力传感器372，该悬臂梁371为弹性元件，该应变式压力传感器372设置于悬臂梁371的表面。可选地，该应变式压力传感器372的数量可为一个或多个。
具体地，在用户手指按压透光盖板310时，用户手指与透光盖板310之间的接触压力通过透光盖板310、PPG检测模块330传递至悬臂梁371，以使悬臂梁371表面的应变式压力传感器372检测该接触压力形成压力信号。
通过该实施方式中悬臂梁式压力检测模块，其具有厚度薄、占用空间小、检测灵敏度高等优点，因而，可以使得检测装置300在具有较高检测精度的基础上，检测装置300的整体结构较为紧凑，有利于检测装置300的小型化发展。
可以理解的是，图7所示的悬臂梁式压力检测模块370仅作为示例而非限定，除了该结构类型的压力检测模块370以外，还可以采用相关技术中其它类型的压力检测模块，本申请实施例对此不做具体限定。
另外，为了实现检测装置300中多个模块之间的相互配合安装，如图7所示，PPG检测模块330还可包括：第一支架336，用于固定安装上述电路板333。可选地，该第一支架336的外形形状可适配于电路板333，以对该电路板333起到充分的支撑，保证位于该电路板333上光源331、光检测器332等部件的稳定性。
可选地，为了实现电路板333与外部电学部件的电连接，PPG检测模块330还可包括：柔性电路板335，其一端连接至电路板333，另一端可通过连 接器等结构连接至检测装置300所在电子设备的主板或者其它电学部件。该柔性电路板335具有较高的柔韧性以及较薄的厚度，能够弯折从而可方便地实现其在电子设备中的安装。
进一步的，参见图7，压力检测模块370还可包括：第二支架373和保护盖板374，其中，第二支架373用于安装上述悬臂梁371，保护盖板374扣合于第二支架372，并用于保护悬臂梁371以及位于该悬臂梁371上的应变式压力传感器372。
可选地，如图7所示，第二支架373可为框型结构，悬臂梁371可安装于该框型支架中。另外，上述PPG检测模块330的第一支架336的外形尺寸可适配于第二支架373，且该第一支架336可接触于第二支架373中安装的悬臂梁371。当用户手指按压于透光盖板310时，按压压力可通过PPG检测模块330中的第一支架336传递至压力检测模块370中的悬臂梁371，从而实现悬臂梁371上应变式压力传感器372进行压力信号的检测。
另外，第二支架373的材料包括但不限于是金属材料。该金属材料的第二支架373不仅可以提升检测装置300整体外观的美观度，还可以用于作为静电释放的部件，对压力检测模块370中的压力传感器等部件起到保护作用，提升检测装置300的使用可靠性。
上文图7所示实施例示出了检测装置300的一种爆炸示意图，该检测装置300中的各部件相互配合安装后，图8示出了该检测装置300的一种立体结构示意图。
如图8所示，上述第二支架373、保护盖板373可作为检测装置300的基础外壳，其中不仅可容纳压力传感器等部件，还可容纳至少部分的PPG检测模块330，例如，可容纳至少部分的第一支架336。
可选地，如图7和图8所示，PPG检测模块330可包括：限位凸缘3341，当用户手指按压于透光盖板310时，该PPG检测模块330接触于悬臂梁371，且能够通过该限位凸缘3341抵接于第二支架373，以限制用户手指通过透光盖板310和PPG检测模块330施加于悬臂梁371上的压力。通过该实施方式的技术方案，可以避免该较大的压力作用于压力检测模块370中的悬臂梁371，从而避免该较大的压力造成悬臂梁371的损坏，保证检测装置300的使用可靠性。
作为示例，在图7和图8所示实施例中，限位凸缘3341可形成于PPG 检测模块330中的支撑件334。具体地，限位凸缘3341可形成于支撑件334的外围。当用户手指按压于透光盖板310时，PPG检测模块330与透光盖板310的整体朝向第二支架373中的悬臂梁371移动，并向悬臂梁371施加压力。当限位凸缘3341随PPG检测模块330运动，并抵接至第二支架373时，该第二支架373限制了用户手指的进一步按压，且能够承受用户手指一部分的按压压力。因此，通过限位凸缘3341和第二支架373之间的相互配合设计，可限制用户手指对悬臂梁371造成过大的压力，影响压力检测的正常进行。
本申请还提供一种电子设备，该电子设备可以包括上述任一申请实施例中的生物特征信息的检测装置300。
可选地，该电子设备可以为智能手表或者手机。该检测装置300可设置于电子设备的任意表面，以便于用户手指对该检测装置300进行按压。作为示例，检测装置300可设置于电子设备的侧面。
图9示出了本申请实施例提供的电子设备30的一种示意性结构图。
如图9所示，电子设备30可为智能手表，上述检测装置300可设置于该智能手表的侧面。结合图8和图9可以看出，检测装置300的整体外形可为较为规则的形态，可较为方便的在智能手表等电子设备中安装，且具有较高的美观度。当该检测装置300设置于智能手表的侧面时，其可看成是位于智能手表侧面的一个按键，方便用户手指进行按压。
可选地，该检测装置300除了可实现生物特征信息的检测以外，还可集成电子设备30的其它功能。例如，当该检测装置300作为按键时，其还可以实现电子设备的开关功能，即将检测装置300的按键同时作为电子设备30的电源键。通过该实施方式的技术方案，可以进一步降低电子设备30的制造成本，有利于电子设备30的轻薄化和小型化的发展。
应理解，本文中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围。
还应理解，本说明书中描述的各种实施方式，既可以单独实施，也可以组合实施，本申请实施例对此并不限定。
除非另有说明，本申请实施例所使用的所有技术和科学术语与本申请的技术领域的技术人员通常理解的含义相同。本申请中所使用的术语只是为了描述具体的实施例的目的，不是旨在限制本申请的范围。本申请所使用的术 语“和/或”包括一个或多个相关的所列项的任意的和所有的组合。
本申请实施例的处理单元或者处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。可以理解，本申请实施例的血压检测装置还可以包括存储单元或者存储器，存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在本申请所提供的几个实施例中，应所述理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使 用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者所述技术方案的部分可以以软件产品的形式体现出来，所述计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (17)

  1. 一种生物特征信息的检测装置，其特征在于，包括：
    透光盖板；
    心电图ECG电极，设置于所述透光盖板朝向用户手指的第一表面，用于接收所述用户手指的按压，并采集所述用户手指的电信号以形成ECG信号；
    光电容积脉搏波描记PPG检测模块，包括：光源和光检测器，设置于所述透光盖板背离所述用户手指的一侧，当所述用户手指按压于所述ECG电极时，所述光源用于发射光信号至所述用户手指，所述光信号经过所述用户手指反射或者散射后被所述光检测器接收，并用于处理形成PPG信号，所述PPG信号和所述ECG信号用于共同处理得到用户的生物特征信息。
  2. 根据权利要求1所述的检测装置，其特征在于，所述ECG电极为采用镀膜工艺形成于所述透光盖板的所述第一表面的金属电极。
  3. 根据权利要求2所述的检测装置，其特征在于，所述ECG电极的厚度小于或等于5μm。
  4. 根据权利要求1至3中任一项所述的检测装置，其特征在于，所述ECG电极为透明电极，所述ECG电极完全覆盖所述透光盖板的所述第一表面。
  5. 根据权利要求1至3中任一项所述的检测装置，其特征在于，所述ECG电极为非透明电极，所述ECG电极中形成有开孔，所述开孔对应于所述光源和所述光检测器设置。
  6. 根据权利要求1至5中任一项所述的检测装置，其特征在于，所述PPG检测模块还包括：电路板，支撑并电连接所述光源和所述光检测器，用于传输所述光源和所述光检测器的电信号；
    所述电路板还电连接至所述ECG电极，用于传输所述ECG电极的电信号。
  7. 根据权利要求6所述的检测装置，其特征在于，所述ECG电极还延伸设置于所述透光盖板中背离所述用户手指的第二表面以及所述透光盖板中除所述第一表面和所述第二表面以外的侧面；
    所述检测装置还包括：电连接件，连接位于所述第二表面的所述ECG电极与所述电路板。
  8. 根据权利要求7所述的检测装置，其特征在于，所述电连接件位于所述光源和所述光检测器之间，以阻挡所述光源发射的至少部分光信号直接进入所述光检测器中。
  9. 根据权利要求6至8中任一项所述的检测装置，其特征在于，所述PPG检测模块还包括：支撑件，设置于所述透光盖板与所述电路板之间，所述支撑件中形成有空心腔体，所述空心腔体用于容纳和保护所述光源和光检测器。
  10. 根据权利要求6至9中任一项所述的检测装置，其特征在于，所述检测装置还包括：
    温度检测模块，设置于所述电路板，并朝向所述透光盖板，所述温度检测模块通过导热层连接至所述透光盖板，用于检测所述透光盖板上所述用户手指的温度。
  11. 根据权利要求1至9中任一项所述的检测装置，其特征在于，所述检测装置还包括：
    温度检测模块，设置于所述透光盖板背离所述用户手指的第二表面，用于检测所述透光盖板上所述用户手指的温度。
  12. 根据权利要求1至11中任一项所述的检测装置，其特征在于，所述检测装置还包括：
    压力检测模块，设置于所述透光盖板背离所述用户手指的一侧，当所述用户手指按压于所述ECG电极时，所述压力检测模块用于检测所述用户手指与所述ECG电极之间的按压压力得到压力信号；
    所述压力信号、所述PPG信号和所述ECG信号用于共同处理得到用户的生物特征信息。
  13. 根据权利要求12所述的检测装置，其特征在于，所述透光盖板、所述PPG检测模块与所述压力检测模块依次堆叠设置，当所述用户手指按压于所述ECG电极时，按压压力通过所述透光盖板以及所述PPG检测模块传递至所述压力检测模块，以使得所述压力检测模块检测所述用户手指与所述ECG电极之间的按压压力。
  14. 根据权利要求13所述的检测装置，其特征在于，所述压力检测模块包括：悬臂梁和应变式压力传感器，所述悬臂梁为弹性元件，所述应变式压力传感器设置于所述悬臂梁的表面。
  15. 根据权利要求14所述的检测装置，其特征在于，所述压力检测模块还包括：框型支架，所述悬臂梁安装于所述框型支架中；
    所述PPG检测模块包括：限位凸缘，当所述用户手指按压于所述透光盖板时，所述PPG检测模块接触于所述悬臂梁，且能够通过所述限位凸缘抵接于所述框型支架，以限制所述用户手指通过所述透光盖板和所述PPG检测模块施加于所述悬臂梁的压力。
  16. 一种电子设备，其特征在于，包括：如上述权利要求1至15中任一项所述的生物特征信息的检测装置，所述检测装置位于所述电子设备的表面以便于用户手指按压。
  17. 根据权利要求16所述的电子设备，其特征在于，所述电子设备为智能手表，所述检测装置设置于所述智能手表的侧面。
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108236460A (zh) * 2016-12-27 2018-07-03 三星电子株式会社 触摸型血压测量设备和方法
US20180220972A1 (en) * 2017-02-03 2018-08-09 Samsung Electronics Co., Ltd. Electronic device capable of measuring biometric information
CN110464316A (zh) * 2019-08-01 2019-11-19 浙江清华柔性电子技术研究院 血压测量装置及具有其的智能手表
US10729347B1 (en) * 2017-01-31 2020-08-04 Verily Life Sciences Llc Device with light-processing component covered by light-permeable touchable electrode for detecting biologic activity
CN112022147A (zh) * 2020-09-21 2020-12-04 安徽华米信息科技有限公司 一种穿戴设备的生物电检测装置及穿戴设备
CN212972926U (zh) * 2020-12-09 2021-04-16 深圳市汇顶科技股份有限公司 生物特征信息的检测装置和电子设备
CN113080913A (zh) * 2020-12-09 2021-07-09 深圳市汇顶科技股份有限公司 血压检测装置、方法和电子设备
CN213721930U (zh) * 2020-09-17 2021-07-20 深圳市沃特沃德股份有限公司 一种智能手表

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108236460A (zh) * 2016-12-27 2018-07-03 三星电子株式会社 触摸型血压测量设备和方法
US10729347B1 (en) * 2017-01-31 2020-08-04 Verily Life Sciences Llc Device with light-processing component covered by light-permeable touchable electrode for detecting biologic activity
US20180220972A1 (en) * 2017-02-03 2018-08-09 Samsung Electronics Co., Ltd. Electronic device capable of measuring biometric information
CN110464316A (zh) * 2019-08-01 2019-11-19 浙江清华柔性电子技术研究院 血压测量装置及具有其的智能手表
CN213721930U (zh) * 2020-09-17 2021-07-20 深圳市沃特沃德股份有限公司 一种智能手表
CN112022147A (zh) * 2020-09-21 2020-12-04 安徽华米信息科技有限公司 一种穿戴设备的生物电检测装置及穿戴设备
CN212972926U (zh) * 2020-12-09 2021-04-16 深圳市汇顶科技股份有限公司 生物特征信息的检测装置和电子设备
CN113080913A (zh) * 2020-12-09 2021-07-09 深圳市汇顶科技股份有限公司 血压检测装置、方法和电子设备

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