WO2020199795A1 - Sensor and electronic device and vital signs detection method - Google Patents

Sensor and electronic device and vital signs detection method Download PDF

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Publication number
WO2020199795A1
WO2020199795A1 PCT/CN2020/076685 CN2020076685W WO2020199795A1 WO 2020199795 A1 WO2020199795 A1 WO 2020199795A1 CN 2020076685 W CN2020076685 W CN 2020076685W WO 2020199795 A1 WO2020199795 A1 WO 2020199795A1
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WIPO (PCT)
Prior art keywords
sensing
generating component
sensor according
signal generating
sensing portion
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PCT/CN2020/076685
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French (fr)
Chinese (zh)
Inventor
韩永杰
窦树谦
傅晓亮
田婷
范志强
周大勇
张亚文
杨友才
张东
王忠俊
刘宇
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Publication of WO2020199795A1 publication Critical patent/WO2020199795A1/en

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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
    • A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
    • 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
    • A61B5/02—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs

Definitions

  • the embodiments of the present disclosure relate to a sensor, an electronic device, and a vital sign detection method.
  • the patient’s vital signs are used to determine the severity and criticality of the patient’s condition. Mainly include changes in heart rate, pulse, blood pressure, breathing, pain, blood oxygen, pupil and corneal reflex and so on. Among them, respiration, body temperature, pulse, blood pressure, medical office called the four major signs of life. They are the pillars to maintain the normal activities of the body, and none of them are indispensable. No matter which abnormality can cause serious or fatal diseases, certain diseases can also cause the changes or deterioration of these four major signs. Monitoring the patient's vital signs can enable doctors to know the patient's physical condition at any time, and make timely response, diagnosis and treatment.
  • Heart rate refers to the number of heartbeats per minute of normal people in a quiet state, also called resting heart rate, generally 60-100 beats per minute, and individual differences can occur due to age, gender, or other physiological factors. Breathing refers to the process of gas exchange between the body and the external environment. A normal adult takes about 6.4 seconds to breathe once at rest. Body temperature, the body temperature of a healthy person is relatively constant. When the body temperature exceeds the upper limit of the normal body temperature, it is called fever, which is what people usually call fever. The traditional concept is that the normal body temperature is 37°C, but it is affected by factors such as test location, time, season, and individual differences.
  • the present disclosure provides a sensor, an electronic device, and a vital sign detection method, which can simultaneously detect respiration and pulse with high detection accuracy.
  • embodiments of the present disclosure provide a sensor, including:
  • the first substrate has a first surface, and includes a first sensing portion on the first surface;
  • a motion sensing element which is arranged on the first surface and has a vibration gap with the first surface, and the motion sensing element includes a second sensing portion and a third sensing portion;
  • the first sensing portion and the second sensing portion are relatively movable, and when the first sensing portion and the second sensing portion move away from each other, the second signal generating component is Is triggered to generate a first detection signal; the third sensing part is used to sense external vibrations and drive the motion sensing element to vibrate in a direction perpendicular to the first surface to trigger the first signal generation component to generate The second detection signal.
  • the motion sensing element includes a first connecting part and a second connecting part, and the motion sensing element is movably connected to the first connecting part through the first connecting part and the second connecting part. On the substrate.
  • the first connecting portion serves as the second sensing portion, and the second connecting portion is used to trigger the second signal generating component.
  • the third sensing part is located between the first connecting part and the second connecting part.
  • the first sensing part includes a protruding part provided on the first surface.
  • a guide cavity is provided in the protruding portion, the second signal generating component is provided in the guide cavity, and the second connecting portion is movably provided in the guide cavity.
  • the second connecting portion and the second signal generating component are sequentially arranged in the guide cavity along the relative movement direction of the first sensing portion and the second sensing portion.
  • the second signal generating component includes a piezoelectric film and an electrode connected to the piezoelectric film.
  • the piezoelectric film of the second signal generating component is arranged on the surface of the second connecting portion facing the second connecting portion along the relative movement direction of the first sensing portion and the second sensing portion. One side of the first connection part.
  • the motion sensing element further includes a resetting element for applying a reset elastic force to the motion sensing element, so that the second connecting portion triggers the first signal generating component. Reset.
  • the restoring member is a spring, one end of the spring is fixed to the motion sensing member, and the other end is fixed to the protrusion.
  • a guide rail is provided on the first surface, and the first connecting portion is movably connected to the guide rail.
  • the first signal generating component is disposed on a side of the first surface facing the third sensing portion and located in the vibration gap, and the third sensing portion is located The side of the first signal generating component away from the first surface.
  • the second signal generating component includes a piezoelectric film and an electrode connected to the piezoelectric film.
  • the piezoelectric film is located between the first surface and the third sensing part.
  • the first substrate further has a second surface opposite to the first surface, and a temperature detection component is provided on the second surface.
  • the body temperature detection component includes:
  • a second base body which is connected to the second surface of the first base body and can deform with temperature changes
  • a piezoelectric semiconductor layer which is insulated and connected to the side of the second substrate away from the first substrate;
  • a first electrode and a second electrode which are fixed on the side of the piezoelectric semiconductor away from the second base body and form Schottky contact with the piezoelectric semiconductor layer;
  • the detection circuit is respectively connected with the first electrode and the second electrode.
  • the detection circuit includes a power supply module and a current detection device, and the first electrode, the power supply module, the current detection device, and the second electrode are sequentially connected in series.
  • the embodiments of the present disclosure provide an electronic device including the sensor as described above.
  • embodiments of the present disclosure provide a method for detecting vital signs, using any of the sensors described in the first aspect, and the detection method includes: fixing the first sensing portion and the second sensing portion on the chest ; Read the first detection signal and the second detection signal; obtain the change frequency of the first detection signal and the change frequency of the second detection signal.
  • Figure 1 is a schematic structural diagram of a sensor involved in an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of the structure when the second substrate of the sensor according to the embodiment of the disclosure is deformed.
  • FIG. 1 is a schematic structural diagram of a sensor according to an embodiment of the disclosure. As shown in FIG. 1, the sensor according to an embodiment of the disclosure includes a first substrate 1, a motion sensor 2, a first signal generating component 8 and a second signal generating component 11.
  • the first substrate 1 has a first surface and a second surface opposite to each other, the first surface is provided with a first sensing portion 3, and the first signal generating component 8 and the second signal generating component 11 are both provided on the first surface ,
  • the motion sensing element 2 is movably arranged on the first surface and there is a vibration gap between the motion sensing element 2 and the motion sensing element 2 is provided with a second sensing portion 4 and a third sensing portion 5, the first The sensing portion and the second sensing portion can move relatively, the first sensing portion 3 and the second sensing portion 4 can move away from each other, and drive the first substrate 1 and the motion sensing element 2 to move relative to each other to trigger
  • the second signal generating component 11 generates a first detection signal;
  • the third sensing part 5 is used to sense external vibrations and drive the motion sensing element 2 to vibrate in a direction perpendicular to the first surface to trigger the first signal generating component 8 to generate The second detection signal.
  • the first sensing part 3 and the second sensing part 4 when in use, can be fixed on the skin of the subject to be detected, for example, the skin surface of the human breast.
  • the first sensing part 3 and the second sensing part 4 move back to each other under the drive of the skin.
  • they can drive the first base 1 and the motion sensing element 2 to move relative to each other.
  • the first base 1 does not Move
  • the motion sensing element 2 moves along the first surface away from the first substrate 1
  • the motion sensing element 2 does not move
  • the first substrate 1 moves along the first surface away from the motion sensing element 2, thereby triggering the first
  • the second signal generating component 11 generates a first detection signal capable of characterizing breathing.
  • the third sensing part 5 is used to contact the skin of the subject to be detected, for example, the skin of the human chest.
  • the third sensing part 5 can sense the heartbeat of the human body and drive the motion sensing part to vibrate at the same frequency to trigger
  • the first signal generating component 8 generates a second detection signal that can characterize the heartbeat.
  • the motion sensing component cooperates with the first substrate 1 to simultaneously sense the breathing and heartbeat of the subject to be detected.
  • the first detection signal and the second detection signal are respectively generated by the second signal generation component 11 and the first signal generation component 8, the first signal generation component 8 and the second signal generation component 11 do not interfere with each other, and the detection accuracy is Higher.
  • the third sensing part is located between the first connecting part and the second connecting part.
  • the first substrate 1 may be a plate-shaped substrate, which includes a first surface and a second surface opposite to each other.
  • the first signal generating component 8 may also be arranged on the first surface, and the second signal generating component 11 can be attached to the first surface, and the motion sensing element 2 is also arranged on the first surface, and is configured to move along the first surface of the first substrate 1.
  • the motion sensing element 2 is provided with a first connecting portion 6 and a second connecting portion 7 at both ends, and the first connecting portion 6 and the second connecting portion 6
  • the two connecting parts 7 can be movably connected to the first surface of the first base body 1.
  • the motion sensing element 2 can move along the first surface of the first substrate 1 through the first connecting portion 6 and the second connecting portion 7.
  • a protrusion 14 may be provided on the first surface of the first base 1, and the protrusion 14 may form the first sensing part 3. That is, during use, the protruding portion 14 and the first connecting portion 6 of the motion sensing element 2 can be fixedly connected to, for example, the breast skin of the human body, so that the first connecting portion 6 and the protruding portion 14 are driven by , The first base body 1 and the motion sensing element 2 can move relative to each other, and then the second signal generating component 11 is triggered by the second connecting portion 7.
  • a position corresponding to the first connecting portion 6 on the first surface of the first base body 1 may be provided with a guide rail 16, and the first connecting portion 6 may be connected to the guide rail 16 and configured to be able to follow the guide rail. 16 moves.
  • the guide rail 16 can be a guide groove, a guide rail protruding from the first surface, or other shapes.
  • the protrusion 14 may be provided with a guide cavity 15 inside, and the guide cavity 15 may be arranged along the first surface of the first substrate 1, and the second signal generating component 11 may be disposed in the guide cavity 15
  • the second connecting portion 7 can be configured to be compatible with the guide cavity 15, and can extend from the end of the protruding portion 14 where the second signal generating component 11 is provided.
  • the second connecting portion 7 can move along the guide cavity 15.
  • the skin of the chest expands, the protruding portion 14 and the first connecting portion 6 move away from each other, and the second connecting portion 7 can move along the guide cavity 15 in the direction of the second signal generating component 11 and trigger the second
  • the signal generating component 11 generates a first detection signal; when the subject to be tested exhales, the protrusion 14 and the first connecting portion 6 move toward each other, and the second connecting portion 7 moves away from the second signal generating component 11, And separated from the second signal generating component 11. In this way, the frequency of the resulting first detection signal is the same as the breathing frequency of the subject to be detected.
  • the second connecting portion and the second signal generating component are sequentially arranged in the guide cavity along the relative movement direction of the first sensing portion and the second sensing portion.
  • the piezoelectric film of the second signal generating component is disposed on the second connecting portion facing the first connecting portion along the relative movement direction of the first sensing portion and the second sensing portion Side.
  • the motion sensing member 2 can also be provided with a resetting member 17 for applying a reset elastic force to the motion sensing member 2 so that the second connecting portion 7 triggers the second signal generating component 11 to reset.
  • a return spring can be arranged on the motion sensing element 2, one end of the return spring is connected to the protrusion 14 and the other end is connected to the motion sensing element 2, and the return spring is in a stretched state. In this way, under the action of the skin tension of the subject, the first connecting portion 6 and the protruding portion 14 can move back to each other.
  • the restoring member is a spring
  • one end of the spring is fixed to the motion sensing member, and the other end is fixed to the protrusion.
  • the second signal generating component 11 may have various structures.
  • the second signal generating component 11 may include a second piezoelectric film 12 and a second piezoelectric film connected to the second piezoelectric film 12
  • the second piezoelectric film 12 can be attached to the cavity wall of the guide cavity 15, and the first detection signal can be generated under the squeezing of the second connecting part 7.
  • the second piezoelectric film electrode 13 is connected with a positive , Negative lead, the first detection signal generated by the second piezoelectric film 12 can be output to an external circuit through the positive and negative leads, so that the first detection signal can be further processed.
  • the second piezoelectric film electrode 13 is pressed by the second connecting portion 7 to generate charge, which can be derived through the positive and negative leads and then collected by the charge amplifier.
  • the respiratory frequency sign information can be obtained. .
  • the first signal generating component 8 may also have various structures.
  • the first signal generating component 8 may include a first piezoelectric film 9 and a first piezoelectric film connected to the first piezoelectric film 9.
  • the thin film electrode 10, the first piezoelectric thin film 9 can be arranged on the first surface of the first substrate 1.
  • the motion sensor 2 senses the heartbeat of the object to be detected, it can vibrate in a direction perpendicular to the first surface, and can squeeze the first piezoelectric film 9, so that the first piezoelectric film 9 generates a second A detection signal, the second detection signal having the same frequency as the heartbeat.
  • the first piezoelectric film electrode 10 can also be connected with positive and negative leads, and the second detection signal generated by the first piezoelectric film 9 can be output to an external circuit through the positive and negative leads, so that the second detection signal can be further deal with.
  • the first piezoelectric film electrode 9 is pressed by the third induction part 5 to generate charge, which can be derived through the positive and negative leads and then collected by the charge amplifier.
  • the signal generation frequency By reading the signal generation frequency, the physical information of the heartbeat frequency can be obtained. .
  • the first signal generating component is disposed on the side of the first surface facing the third sensing part and located in the vibration gap, and the third sensing part is located in the first signal The side of the generating component away from the first surface.
  • the piezoelectric film of the first signal generating component is located between the first surface and the third sensing part.
  • the senor may further include a body temperature detection component 18, and the body temperature detection component 18 may be disposed on the second surface of the first substrate 1. In this way, the sensor can detect the body temperature of the body to be detected while detecting breathing and heartbeat, and at the same time meet the measurement of multiple life parameters.
  • the body temperature detection component 18 in the embodiment of the present disclosure includes a second substrate 19, a piezoelectric semiconductor layer 20, a first piezoelectric semiconductor electrode 21, a second piezoelectric semiconductor electrode 22, and a detection circuit, wherein the second substrate 19 is connected to the side of the first substrate 1 opposite to the motion sensing element 2, that is, the second surface of the first substrate 1, and can deform with temperature changes; the piezoelectric semiconductor layer 20 is insulated and connected to the second The side of the base 19 away from the first base 1; the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22 are fixed on the side of the piezoelectric semiconductor away from the second base 19 and form a Schottky with the piezoelectric semiconductor layer 20 Contact; the detection circuit is respectively connected to the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22.
  • the second substrate 19 can be deformed when the temperature changes. For example, when the temperature rises, the second substrate 19 can be deformed and bend upwards, so that the piezoelectric semiconductor layer 20 is subjected to upward stress.
  • the generated piezoelectric potential will affect the height of the Schottky barrier between the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22 and the piezoelectric semiconductor layer 20, thereby affecting the current detected by the detection circuit.
  • the amount of change in the circuit can be used to calculate the body temperature of the subject to be tested.
  • the detection circuit may include a power supply module 23 and a current detection device 24.
  • the first piezoelectric semiconductor electrode 21, the power supply module 23, the current detection device 24, and the second piezoelectric semiconductor electrode 22 are sequentially connected in series.
  • the power supply module 23 is used to supply power to the detection circuit
  • the current detection device 24 is used to detect the current change between the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22.
  • the body temperature detection component 18 is not limited to the above structure.
  • the embodiments of the present disclosure also provide an electronic device that applies the above-mentioned sensor.
  • the electronic device can be a smart watch, smart bracelet, medical detection device, etc.
  • the specific form of the electronic device is not limited here, as long as the sensor can be used to detect breathing, heartbeat and body temperature at the same time, and achieve a high detection effect. .
  • the electronic device further includes: a charge amplifier, connected to the positive and negative electrodes of the sensor, to read the first detection signal and the second detection signal; a controller, respectively connected to the charge amplifier and the current detection device, according to the first detection
  • the frequency of change of the signal and the second detection signal is used to obtain the breathing frequency and the heartbeat frequency, and the body temperature is obtained according to the current change of the current detection device.
  • the embodiments of the present disclosure also provide a vital signs monitoring method, using the sensor as described in any of the foregoing embodiments, including:
  • the body temperature is obtained according to the amount of change in the current detection value.
  • the embodiments of the present disclosure provide a sensor, an electronic device, and a vital sign detection method, which can simultaneously detect respiration, heartbeat, and body temperature, and achieve a high detection effect.

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Abstract

A sensor, an electronic device comprising the sensor, and a vital signs detection method using the sensor. The sensor comprises: a first base body (1) having a first surface and comprising a first sensing portion (3) on the first surface; a first signal generating component (8) and a second signal generating component (11) which both are provided on the first surface; a motion sensing member (2) provided on the first surface, a vibration clearance existing between the motion sensing member (2) and the first surface, and the motion sensing member (2) comprising a second sensing portion (4) and a third sensing portion (5); wherein the first sensing portion (3) and the second sensing portion (4) can move relatively, the second signal generating component (11) is triggered to generate a first detection signal when the first sensing portion (3) and the second sensing portion (4) move away from each other, the third sensing portion (5) is used for sensing external vibration and driving the motion sensing member (2) to vibrate in a direction perpendicular to the first surface so as to trigger the first signal generating component (8) to generate a second detection signal. The sensor is simple in structure, can detect both breathing and heartbeat, and has high detection accuracy.

Description

传感器及电子设备以及生命体征检测方法Sensors, electronic equipment and vital signs detection methods 技术领域Technical field
本公开的实施例涉及一种传感器及电子设备以及生命体征检测方法。The embodiments of the present disclosure relate to a sensor, an electronic device, and a vital sign detection method.
背景技术Background technique
患者的生命体征是用来判断病患的病情轻重和危急程度的指征。主要有心率、脉搏、血压、呼吸、疼痛、血氧、瞳孔和角膜反射的改变等等。其中，呼吸、体温、脉搏、血压，医学办称为生命四大体征。它们是维持机体正常活动的支柱，缺一不可，不论哪项异常也会导致严重或致命的疾病，同时某些疾病也可导致这四大体征的变化或恶化。对病患生命体征的监测可以使得医生随时了解病患的身体状况，及时做出应对与诊治。The patient’s vital signs are used to determine the severity and criticality of the patient’s condition. Mainly include changes in heart rate, pulse, blood pressure, breathing, pain, blood oxygen, pupil and corneal reflex and so on. Among them, respiration, body temperature, pulse, blood pressure, medical office called the four major signs of life. They are the pillars to maintain the normal activities of the body, and none of them are indispensable. No matter which abnormality can cause serious or fatal diseases, certain diseases can also cause the changes or deterioration of these four major signs. Monitoring the patient's vital signs can enable doctors to know the patient's physical condition at any time, and make timely response, diagnosis and treatment.
正常情况下，脉搏和心率是一致的。心率是指正常人安静状态下每分钟心跳的次数，也叫安静心率，一般为60～100次/分，可因年龄、性别或其他生理因素产生个体差异。呼吸，是指机体与外界环境之间气体交换的过程。正常成人安静时呼吸一次约为6.4秒。体温，健康人的体温是相对恒定的，当体温超过正常体温的最高限度时称为发热，就是平常人们所说的发烧。传统观念认为正常体温为37℃，但因为测试部位、时间、季节及个体差异等因素的影响。Under normal circumstances, pulse and heart rate are the same. Heart rate refers to the number of heartbeats per minute of normal people in a quiet state, also called resting heart rate, generally 60-100 beats per minute, and individual differences can occur due to age, gender, or other physiological factors. Breathing refers to the process of gas exchange between the body and the external environment. A normal adult takes about 6.4 seconds to breathe once at rest. Body temperature, the body temperature of a healthy person is relatively constant. When the body temperature exceeds the upper limit of the normal body temperature, it is called fever, which is what people usually call fever. The traditional concept is that the normal body temperature is 37°C, but it is affected by factors such as test location, time, season, and individual differences.
发明内容Summary of the invention
本公开提供一种传感器及电子设备以及生命体征检测方法，能够同时检测呼吸和脉搏、且检测精度较高。The present disclosure provides a sensor, an electronic device, and a vital sign detection method, which can simultaneously detect respiration and pulse with high detection accuracy.
一方面，本公开的实施例提供一种传感器，包括：In one aspect, embodiments of the present disclosure provide a sensor, including:
第一基体，具有第一面，包括在所述第一面上的第一感测部；The first substrate has a first surface, and includes a first sensing portion on the first surface;
第一信号生成组件和第二信号生成组件，其二者均设置在所述第一面上；A first signal generating component and a second signal generating component, both of which are arranged on the first surface;
运动感应件，其设置在所述第一面上且与所述第一面之间具有振动间隙，所述运动感应件包括第二感测部和第三感测部；A motion sensing element, which is arranged on the first surface and has a vibration gap with the first surface, and the motion sensing element includes a second sensing portion and a third sensing portion;
其中，所述第一感测部和所述第二感测部可相对移动，当所述第一感测部和所述第二感测部相背移动时，所述第二信号生成组件被触发而生成第一 检测信号；所述第三感测部用于感测外部振动，并带动所述运动感应件沿垂直于所述第一面方向振动，以触发所述第一信号生成组件生成第二检测信号。Wherein, the first sensing portion and the second sensing portion are relatively movable, and when the first sensing portion and the second sensing portion move away from each other, the second signal generating component is Is triggered to generate a first detection signal; the third sensing part is used to sense external vibrations and drive the motion sensing element to vibrate in a direction perpendicular to the first surface to trigger the first signal generation component to generate The second detection signal.
在一些实施例中，所述运动感应件包括第一连接部和第二连接部，所述运动感应件通过所述第一连接部和所述第二连接部可移动地连接在所述第一基体上。In some embodiments, the motion sensing element includes a first connecting part and a second connecting part, and the motion sensing element is movably connected to the first connecting part through the first connecting part and the second connecting part. On the substrate.
在一些实施例中，所述第一连接部作为所述第二感测部，所述第二连接部用于触发所述第二信号生成组件。In some embodiments, the first connecting portion serves as the second sensing portion, and the second connecting portion is used to trigger the second signal generating component.
在一些实施例中，所述第三感测部位于所述第一连接部和所述第二连接部之间。In some embodiments, the third sensing part is located between the first connecting part and the second connecting part.
在一些实施例中，所述第一感测部包括设置在所述第一面上的凸出部。In some embodiments, the first sensing part includes a protruding part provided on the first surface.
在一些实施例中，所述凸出部内设有导向腔，所述第二信号生成组件设置在所述导向腔内，所述第二连接部可移动地设置在所述导向腔内。In some embodiments, a guide cavity is provided in the protruding portion, the second signal generating component is provided in the guide cavity, and the second connecting portion is movably provided in the guide cavity.
在一些实施例中，所述第二连接部和所述第二信号生成组件沿所述第一感测部和所述第二感测部的相对移动方向依次设置在所述导向腔内。In some embodiments, the second connecting portion and the second signal generating component are sequentially arranged in the guide cavity along the relative movement direction of the first sensing portion and the second sensing portion.
在一些实施例中，所述第二信号生成组件包括压电薄膜和与所述压电薄膜连接的电极。In some embodiments, the second signal generating component includes a piezoelectric film and an electrode connected to the piezoelectric film.
在一些实施例中，所述第二信号生成组件的压电薄膜沿所述第一感测部和所述第二感测部的相对移动方向设置在所述第二连接部的面对所述第一连接部的一侧。In some embodiments, the piezoelectric film of the second signal generating component is arranged on the surface of the second connecting portion facing the second connecting portion along the relative movement direction of the first sensing portion and the second sensing portion. One side of the first connection part.
在一些实施例中，所述运动感应件还包括复位件，所述复位件用于向所述运动感应件施加复位弹性力，以使所述第二连接部触发所述第一信号生成组件后复位。In some embodiments, the motion sensing element further includes a resetting element for applying a reset elastic force to the motion sensing element, so that the second connecting portion triggers the first signal generating component. Reset.
在一些实施例中，所述复位件为弹簧，所述弹簧的一段固定到所述运动感应件，另一端固定到所述凸出部。In some embodiments, the restoring member is a spring, one end of the spring is fixed to the motion sensing member, and the other end is fixed to the protrusion.
在一些实施例中，所述第一面上设有导轨，所述第一连接部可移动地连接在所述导轨上。In some embodiments, a guide rail is provided on the first surface, and the first connecting portion is movably connected to the guide rail.
在一些实施例中，所述第一信号生成组件设置在所述第一面的面对所述第三感测部的一侧且位于所述振动间隙内，所述第三感测部位于所述第一信号生成组件的远离所述第一面的一侧。In some embodiments, the first signal generating component is disposed on a side of the first surface facing the third sensing portion and located in the vibration gap, and the third sensing portion is located The side of the first signal generating component away from the first surface.
在一些实施例中，所述第二信号生成组件包括压电薄膜和与所述压电薄膜连接的电极。In some embodiments, the second signal generating component includes a piezoelectric film and an electrode connected to the piezoelectric film.
在一些实施例中，所述压电薄膜位于所述第一面与所述第三感测部之间。In some embodiments, the piezoelectric film is located between the first surface and the third sensing part.
在一些实施例中，所述第一基体还具有与所述第一面相对的第二面，所述第二面上设有温检测组件。In some embodiments, the first substrate further has a second surface opposite to the first surface, and a temperature detection component is provided on the second surface.
在一些实施例中，所述体温检测组件包括：In some embodiments, the body temperature detection component includes:
第二基体，其连接在所述第一基体的所述第二面上，并能够随温度变化产生形变；A second base body, which is connected to the second surface of the first base body and can deform with temperature changes;
压电半导体层，其绝缘连接在所述第二基体远离所述第一基体的一侧；A piezoelectric semiconductor layer, which is insulated and connected to the side of the second substrate away from the first substrate;
第一电极和第二电极，其固定在所述压电半导体远离所述第二基体的一侧并与所述压电半导体层形成肖特基接触；A first electrode and a second electrode, which are fixed on the side of the piezoelectric semiconductor away from the second base body and form Schottky contact with the piezoelectric semiconductor layer;
检测电路，其分别与所述第一电极和第二电极连接。The detection circuit is respectively connected with the first electrode and the second electrode.
在一些实施例中，所述检测电路包括供电模块和电流检测装置，所述第一电极、所述供电模块、所述电流检测装置及所述第二电极依次串联连接。In some embodiments, the detection circuit includes a power supply module and a current detection device, and the first electrode, the power supply module, the current detection device, and the second electrode are sequentially connected in series.
第二方面，本公开的实施例提供一种电子设备，包括如上所述的传感器。In a second aspect, the embodiments of the present disclosure provide an electronic device including the sensor as described above.
第三方面，本公开的实施例提供一种生命体征检测方法，采用第一方面任意所述的传感器进行，该检测方法包括：将所述第一感测部和第二感测部固定在胸部；读取第一检测信号和第二检测信号；获取第一检测信号的变化频率和第二检测信号的变化频率。In a third aspect, embodiments of the present disclosure provide a method for detecting vital signs, using any of the sensors described in the first aspect, and the detection method includes: fixing the first sensing portion and the second sensing portion on the chest ; Read the first detection signal and the second detection signal; obtain the change frequency of the first detection signal and the change frequency of the second detection signal.
附图说明Description of the drawings
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the following will briefly introduce the drawings of the embodiments. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limit the present disclosure. .
图1为本公开实施例涉及的传感器的结构示意图；Figure 1 is a schematic structural diagram of a sensor involved in an embodiment of the disclosure;
图2为本公开实施例涉及的传感器的第二基体发生形变时的结构示意图。2 is a schematic diagram of the structure when the second substrate of the sensor according to the embodiment of the disclosure is deformed.
附图标记：Reference signs:
1-第一基体；2-运动感应件；3-第一感测部；4-第二感测部；5-第三感测部；6-第一连接部；7-第二连接部；8-第一信号生成组件；9-第一压电薄膜；10-第一电极；11-第二信号生成组件；12-第二压电薄膜；13-第二电极；14-凸出部；15-导向腔；16-导轨；17-复位件；18-体温检测组件；19-第二基体；20-压电半导体层；21-第一电极；22-第二电极；23-供电模块；24-电流检测装 置。1- first substrate; 2- motion sensing element; 3- first sensing part; 4- second sensing part; 5- third sensing part; 6- first connecting part; 7- second connecting part; 8-first signal generating component; 9-first piezoelectric film; 10-first electrode; 11-second signal generating component; 12-second piezoelectric film; 13-second electrode; 14-protruding part; 15-guide cavity; 16-rail; 17-reset; 18-body temperature detection component; 19-second substrate; 20-piezoelectric semiconductor layer; 21-first electrode; 22-second electrode; 23-power supply module; 24-Current detection device.
具体实施方式detailed description
为了使得本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the protection scope of the present disclosure.
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity, or importance, but are only used to distinguish different components. "Include" or "include" and other similar words mean that the element or item appearing before the word covers the element or item listed after the word and their equivalents, but does not exclude other elements or items. Similar words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to indicate the relative position relationship. When the absolute position of the described object changes, the relative position relationship may also change accordingly.
为了保持本公开实施例的以下说明清楚且简明，本公开省略了已知功能和已知部件的详细说明。In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components.
传感器技术的发展随着信息技术的发展日新月异，而医用传感器技术也在近些年取得了巨大进展，但现有医用传感器仍然存在检测参数单一、检测精度较差的问题。The development of sensor technology changes with the development of information technology, and medical sensor technology has also made great progress in recent years, but the existing medical sensors still have the problems of single detection parameters and poor detection accuracy.
图1为本公开实施例的传感器的结构示意图，参见图1所示，本公开实施例的传感器包括第一基体1、运动感应件2、第一信号生成组件8和第二信号生成组件11，其中，第一基体1具有相对的第一面和第二面，第一面上设有第一感测部3，第一信号生成组件8和第二信号生成组件11均设置在第一面上，运动感应件2可移动地设置在第一面上且与第一面之间具有振动间隙，该运动感应件2上具有第二感测部4和第三感测部5，所述第一感测部和所述第二感测部可相对移动，第一感测部3和第二感测部4能够相背移动，并带动第一基体1和运动感应件2发生相对移动，以触发第二信号生成组件11生成第一检测信号；第三感测部5用于感测外部振动，并带动运动感应件2 沿垂直于第一面的方向振动，以触发第一信号生成组件8生成第二检测信号。FIG. 1 is a schematic structural diagram of a sensor according to an embodiment of the disclosure. As shown in FIG. 1, the sensor according to an embodiment of the disclosure includes a first substrate 1, a motion sensor 2, a first signal generating component 8 and a second signal generating component 11. Wherein, the first substrate 1 has a first surface and a second surface opposite to each other, the first surface is provided with a first sensing portion 3, and the first signal generating component 8 and the second signal generating component 11 are both provided on the first surface , The motion sensing element 2 is movably arranged on the first surface and there is a vibration gap between the motion sensing element 2 and the motion sensing element 2 is provided with a second sensing portion 4 and a third sensing portion 5, the first The sensing portion and the second sensing portion can move relatively, the first sensing portion 3 and the second sensing portion 4 can move away from each other, and drive the first substrate 1 and the motion sensing element 2 to move relative to each other to trigger The second signal generating component 11 generates a first detection signal; the third sensing part 5 is used to sense external vibrations and drive the motion sensing element 2 to vibrate in a direction perpendicular to the first surface to trigger the first signal generating component 8 to generate The second detection signal.
采用上述结构的传感器，使用时，可将第一感测部3和第二感测部4固定于待检测体的皮肤上，例如，人体胸部的皮肤表面，当待检测吸气时，胸部的皮肤扩张，第一感测部3和第二感测部4在皮肤的带动下发生相背移动，与此同时能够带动第一基体1和运动感应件2相对移动，例如，第一基体1不动，运动感应件2沿着第一面向远离第一基体1的方向移动，或者运动感应件2不动，第一基体1沿着第一面向着远离运动感应件2的方向移动，从而触发第二信号生成组件11生成能够表征呼吸的第一检测信号。第三感测部5用于与待检测体的皮肤接触，例如，人体的胸部的皮肤，第三感测部5能够感测到人体心脏跳动，并带动运动感测部同频振动，以触发第一信号生成组件8生成能够表征心跳的第二检测信号。运动感应部件与第一基体1配合能够同时感应待检测体的呼吸和心跳。另外，由于第一检测信号和第二检测信号分别由第二信号生成组件11和第一信号生成组件8生成，第一信号生成组件8和第二信号生成组件11之间互不干扰，检测精度较高。With the sensor with the above structure, when in use, the first sensing part 3 and the second sensing part 4 can be fixed on the skin of the subject to be detected, for example, the skin surface of the human breast. When the skin expands, the first sensing part 3 and the second sensing part 4 move back to each other under the drive of the skin. At the same time, they can drive the first base 1 and the motion sensing element 2 to move relative to each other. For example, the first base 1 does not Move, the motion sensing element 2 moves along the first surface away from the first substrate 1, or the motion sensing element 2 does not move, the first substrate 1 moves along the first surface away from the motion sensing element 2, thereby triggering the first The second signal generating component 11 generates a first detection signal capable of characterizing breathing. The third sensing part 5 is used to contact the skin of the subject to be detected, for example, the skin of the human chest. The third sensing part 5 can sense the heartbeat of the human body and drive the motion sensing part to vibrate at the same frequency to trigger The first signal generating component 8 generates a second detection signal that can characterize the heartbeat. The motion sensing component cooperates with the first substrate 1 to simultaneously sense the breathing and heartbeat of the subject to be detected. In addition, since the first detection signal and the second detection signal are respectively generated by the second signal generation component 11 and the first signal generation component 8, the first signal generation component 8 and the second signal generation component 11 do not interfere with each other, and the detection accuracy is Higher.
例如，所述第三感测部位于所述第一连接部和所述第二连接部之间。For example, the third sensing part is located between the first connecting part and the second connecting part.
具体的，本公开实施例中第一基体1可为板状基体，其包括相对的第一面和第二面，第一信号生成组件8也可以设置在第一面上，第二信号生成组件11可贴设在该第一面上，该运动感应件2也设置在该第一面上，并将其设置成可沿第一基体1的第一面移动。运动感应件2与第一基体1的连接方式有多种，本实施例中的运动感应件2的两端分别设有第一连接部6和第二连接部7，第一连接部6和第二连接部7均可移动地连接在第一基体1的第一面上。运动感应件2就能够通过第一连接部6和第二连接部7沿第一基体1的第一面移动。Specifically, in the embodiment of the present disclosure, the first substrate 1 may be a plate-shaped substrate, which includes a first surface and a second surface opposite to each other. The first signal generating component 8 may also be arranged on the first surface, and the second signal generating component 11 can be attached to the first surface, and the motion sensing element 2 is also arranged on the first surface, and is configured to move along the first surface of the first substrate 1. There are many ways to connect the motion sensing element 2 to the first substrate 1. In this embodiment, the motion sensing element 2 is provided with a first connecting portion 6 and a second connecting portion 7 at both ends, and the first connecting portion 6 and the second connecting portion 6 The two connecting parts 7 can be movably connected to the first surface of the first base body 1. The motion sensing element 2 can move along the first surface of the first substrate 1 through the first connecting portion 6 and the second connecting portion 7.
在一些实施例中，第一基体1的第一面上可设置有凸出部14，并可由该凸出部14形成第一感测部3。也即，使用时，可将该凸出部14和运动感应件2的第一连接部6与例如人体的胸部皮肤固定连接，这样，在第一连接部6和该凸出部14的带动下，第一基体1和运动感应件2能够发生相对移动，进而通过第二连接部7触发第二信号生成组件11。具体的，该第一基体1的第一面的与第一连接部6相对应的位置可设置有导轨16，该第一连接部6可连接在该导轨16上，并配置为能够沿该导轨16移动。该导轨16可为导轨槽，亦可为凸出于第一面的导轨条，或其他形状。In some embodiments, a protrusion 14 may be provided on the first surface of the first base 1, and the protrusion 14 may form the first sensing part 3. That is, during use, the protruding portion 14 and the first connecting portion 6 of the motion sensing element 2 can be fixedly connected to, for example, the breast skin of the human body, so that the first connecting portion 6 and the protruding portion 14 are driven by , The first base body 1 and the motion sensing element 2 can move relative to each other, and then the second signal generating component 11 is triggered by the second connecting portion 7. Specifically, a position corresponding to the first connecting portion 6 on the first surface of the first base body 1 may be provided with a guide rail 16, and the first connecting portion 6 may be connected to the guide rail 16 and configured to be able to follow the guide rail. 16 moves. The guide rail 16 can be a guide groove, a guide rail protruding from the first surface, or other shapes.
在一些实施例中，该凸出部14的内部可设置有导向腔15，该导向腔15可沿第一基体1的第一面布置，第二信号生成组件11可设置在该导向腔15内，例如，可贴靠在该导向腔15一端部，第二连接部7可配置成与该导向腔15相适应，并可从该凸出部14设置有第二信号生成组件11的一端伸入到该导向腔15内，该第二连接部7能够沿该导向腔15移动。在待检测体吸气时胸部皮肤扩张，凸出部14和第一连接部6相背运动，第二连接部7能够沿导向腔15向第二信号生成组件11的方向移动并触发该第二信号生成组件11，以生成第一检测信号；在待检测体呼气时，凸出部14和第一连接部6相向运动，第二连接部7向远离第二信号生成组件11的方向移动，并脱离第二信号生成组件11。这样，所成成的第一检测信号的频率与待检测体的呼吸频率相同。In some embodiments, the protrusion 14 may be provided with a guide cavity 15 inside, and the guide cavity 15 may be arranged along the first surface of the first substrate 1, and the second signal generating component 11 may be disposed in the guide cavity 15 For example, it can be attached to one end of the guide cavity 15, and the second connecting portion 7 can be configured to be compatible with the guide cavity 15, and can extend from the end of the protruding portion 14 where the second signal generating component 11 is provided. Into the guide cavity 15, the second connecting portion 7 can move along the guide cavity 15. When the body to be tested is inhaled, the skin of the chest expands, the protruding portion 14 and the first connecting portion 6 move away from each other, and the second connecting portion 7 can move along the guide cavity 15 in the direction of the second signal generating component 11 and trigger the second The signal generating component 11 generates a first detection signal; when the subject to be tested exhales, the protrusion 14 and the first connecting portion 6 move toward each other, and the second connecting portion 7 moves away from the second signal generating component 11, And separated from the second signal generating component 11. In this way, the frequency of the resulting first detection signal is the same as the breathing frequency of the subject to be detected.
例如，所述第二连接部和所述第二信号生成组件沿所述第一感测部和所述第二感测部的相对移动方向依次设置在所述导向腔内。For example, the second connecting portion and the second signal generating component are sequentially arranged in the guide cavity along the relative movement direction of the first sensing portion and the second sensing portion.
例如，所述第二信号生成组件的压电薄膜沿所述第一感测部和所述第二感测部的相对移动方向设置在所述第二连接部的面对所述第一连接部的一侧。For example, the piezoelectric film of the second signal generating component is disposed on the second connecting portion facing the first connecting portion along the relative movement direction of the first sensing portion and the second sensing portion Side.
此外，该运动感应件2上还可设有复位件17，复位件17用于向运动感应件2施加复位弹性力，以使第二连接部7触发第二信号生成组件11后复位。例如，可在运动感应件2上设置一复位弹簧，将该复位弹簧的一端连接在凸出部14上，另一端连接在运动感应件2上，并使该复位弹簧处于拉伸状态。这样，在待检测体皮肤张力的作用下，第一连接部6和凸出部14能够相背运动，之后，在待检测体皮肤张力消失时，在复位弹簧拉力的作用下，第一连接部6和凸出部14又能够相向移动，从而使位于凸出部14内部的第二连接部7与第二信号生成组件相脱开。而无需依靠或无需完全依靠待检测体的皮肤收缩来带动第二连接部7复位到启示位置，有益于提高该传感器的呼吸检测精度。In addition, the motion sensing member 2 can also be provided with a resetting member 17 for applying a reset elastic force to the motion sensing member 2 so that the second connecting portion 7 triggers the second signal generating component 11 to reset. For example, a return spring can be arranged on the motion sensing element 2, one end of the return spring is connected to the protrusion 14 and the other end is connected to the motion sensing element 2, and the return spring is in a stretched state. In this way, under the action of the skin tension of the subject, the first connecting portion 6 and the protruding portion 14 can move back to each other. After that, when the skin tension of the subject disappears, under the action of the return spring, the first connecting portion 6 and the protruding portion 14 can move toward each other, so that the second connecting portion 7 inside the protruding portion 14 is separated from the second signal generating component. There is no need to rely on or completely rely on the skin contraction of the subject to be detected to drive the second connecting portion 7 to return to the revelation position, which is beneficial to improve the breathing detection accuracy of the sensor.
例如，所述复位件为弹簧，所述弹簧的一段固定到所述运动感应件，另一端固定到所述凸出部。For example, the restoring member is a spring, one end of the spring is fixed to the motion sensing member, and the other end is fixed to the protrusion.
该第二信号生成组件11可具有多种结构，在一些实施例中，该第二信号生成组件11可包括第二压电薄膜12和与该第二压电薄膜12连接的第二压电薄膜电极13，该第二压电薄膜12可贴靠在导向腔15的腔壁上，在第二连接 部7的挤压下能够产生第一检测信号，该第二压电薄膜电极13连接有正、负极引线，第二压电薄膜12产生的第一检测信号能够通过该正、负极引线能够输出至外部电路，以便于对该第一检测信号进行进一步处理。例如，第二压电薄膜电极13被第二连接部7压迫而产生电荷量，经由正负极引线导出而后可以被电荷放大器采集后，通过读取信号量的产生频率可以得到呼吸频率的体征信息。The second signal generating component 11 may have various structures. In some embodiments, the second signal generating component 11 may include a second piezoelectric film 12 and a second piezoelectric film connected to the second piezoelectric film 12 The second piezoelectric film 12 can be attached to the cavity wall of the guide cavity 15, and the first detection signal can be generated under the squeezing of the second connecting part 7. The second piezoelectric film electrode 13 is connected with a positive , Negative lead, the first detection signal generated by the second piezoelectric film 12 can be output to an external circuit through the positive and negative leads, so that the first detection signal can be further processed. For example, the second piezoelectric film electrode 13 is pressed by the second connecting portion 7 to generate charge, which can be derived through the positive and negative leads and then collected by the charge amplifier. By reading the signal generation frequency, the respiratory frequency sign information can be obtained. .
该第一信号生成组件8也可具有多种结构，在一些实施例中，该第一信号生成组件8可包括第一压电薄膜9和与该第一压电薄膜9连接的第一压电薄膜电极10，该第一压电薄膜9可设置在第一基体1的第一面上。当运动感应件2感测到待检测体的心跳时，能够沿垂直于第一面的方向振动，并能够挤压该第一压电薄膜9，从而使该第一压电薄膜9产生第二检测信号，该第二检测信号与心脏跳动的频率相同。该第一压电薄膜电极10也可连接有正、负极引线，第一压电薄膜9产生的第二检测信号可通过该正、负极引线输出至外部电路，以便对该第二检测信号进行进一步处理。例如，第一压电薄膜电极9被第三感应部5压迫而产生电荷量，经由正负极引线导出而后可以被电荷放大器采集后，通过读取信号量的产生频率可以得到心跳频率的体征信息。The first signal generating component 8 may also have various structures. In some embodiments, the first signal generating component 8 may include a first piezoelectric film 9 and a first piezoelectric film connected to the first piezoelectric film 9. The thin film electrode 10, the first piezoelectric thin film 9 can be arranged on the first surface of the first substrate 1. When the motion sensor 2 senses the heartbeat of the object to be detected, it can vibrate in a direction perpendicular to the first surface, and can squeeze the first piezoelectric film 9, so that the first piezoelectric film 9 generates a second A detection signal, the second detection signal having the same frequency as the heartbeat. The first piezoelectric film electrode 10 can also be connected with positive and negative leads, and the second detection signal generated by the first piezoelectric film 9 can be output to an external circuit through the positive and negative leads, so that the second detection signal can be further deal with. For example, the first piezoelectric film electrode 9 is pressed by the third induction part 5 to generate charge, which can be derived through the positive and negative leads and then collected by the charge amplifier. By reading the signal generation frequency, the physical information of the heartbeat frequency can be obtained. .
例如，所述第一信号生成组件设置在所述第一面的面对所述第三感测部的一侧且位于所述振动间隙内，所述第三感测部位于所述第一信号生成组件的远离所述第一面的一侧。For example, the first signal generating component is disposed on the side of the first surface facing the third sensing part and located in the vibration gap, and the third sensing part is located in the first signal The side of the generating component away from the first surface.
例如，所述第一信号生成组件的所述压电薄膜位于所述第一面与所述第三感测部之间。For example, the piezoelectric film of the first signal generating component is located between the first surface and the third sensing part.
在一些实施例中，该传感器还可包括体温检测组件18，该体温检测组件18可设置在该第一基体1的第二面上。这样该传感器在检测呼吸和心跳的同时还能够检测待检测体的体温，同时满足多种生命参数的测量。In some embodiments, the sensor may further include a body temperature detection component 18, and the body temperature detection component 18 may be disposed on the second surface of the first substrate 1. In this way, the sensor can detect the body temperature of the body to be detected while detecting breathing and heartbeat, and at the same time meet the measurement of multiple life parameters.
具体的，本公开实施例中的体温检测组件18包括第二基体19、压电半导体层20、第一压电半导体电极21、第二压电半导体电极22和检测电路，其中，该第二基体19连接在第一基体1上与运动感应件2相对的一侧，也即该第一基体1的第二面上，并能够随温度变化产生形变；该压电半导体层20绝缘连接在第二基体19远离第一基体1的一侧；第一压电半导体电极21和第二压电半导体电极22固定在压电半导体远离第二基体19的一侧并与压电 半导体层20形成肖特基接触；检测电路分别与第一压电半导体电极21和第二压电半导体电极22连接。Specifically, the body temperature detection component 18 in the embodiment of the present disclosure includes a second substrate 19, a piezoelectric semiconductor layer 20, a first piezoelectric semiconductor electrode 21, a second piezoelectric semiconductor electrode 22, and a detection circuit, wherein the second substrate 19 is connected to the side of the first substrate 1 opposite to the motion sensing element 2, that is, the second surface of the first substrate 1, and can deform with temperature changes; the piezoelectric semiconductor layer 20 is insulated and connected to the second The side of the base 19 away from the first base 1; the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22 are fixed on the side of the piezoelectric semiconductor away from the second base 19 and form a Schottky with the piezoelectric semiconductor layer 20 Contact; the detection circuit is respectively connected to the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22.
配合图2所示，第二基体19在温度变化能够发生形变，例如在温度升高时，该第二基体19能够发生形变并向上弯曲，从而使压电半导体层20受到向上的应力，由此产生的压电电势将影响第一压电半导体电极21和第二压电半导体电极22与压电半导体层20之间的肖特基势垒高度，从而影响检测电路检测到的电流，通过计算检测到的电路的变化量即可计算出待检测体的体温。As shown in FIG. 2, the second substrate 19 can be deformed when the temperature changes. For example, when the temperature rises, the second substrate 19 can be deformed and bend upwards, so that the piezoelectric semiconductor layer 20 is subjected to upward stress. The generated piezoelectric potential will affect the height of the Schottky barrier between the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22 and the piezoelectric semiconductor layer 20, thereby affecting the current detected by the detection circuit. The amount of change in the circuit can be used to calculate the body temperature of the subject to be tested.
在一些实施例中，该检测电路可包括供电模块23和电流检测装置24，第一压电半导体电极21、供电模块23、电流检测装置24及第二压电半导体电极22依次串联连接。该供电模块23用于为检测电路供电，该电流检测装置24用于检测第一压电半导体电极21和第二压电半导体电极22之间的电流变化。需要说明的是，该体温检测组件18不仅限于上述结构。In some embodiments, the detection circuit may include a power supply module 23 and a current detection device 24. The first piezoelectric semiconductor electrode 21, the power supply module 23, the current detection device 24, and the second piezoelectric semiconductor electrode 22 are sequentially connected in series. The power supply module 23 is used to supply power to the detection circuit, and the current detection device 24 is used to detect the current change between the first piezoelectric semiconductor electrode 21 and the second piezoelectric semiconductor electrode 22. It should be noted that the body temperature detection component 18 is not limited to the above structure.
本公开实施例还提供了一种电子设备，该电子设备应用了如上所述的传感器。该电子设备可为智能手表、智能手环、医用检测装置等，此处不限定电子设备的具体形式，只要应用该传感器能够实现同时检测呼吸、心跳和体温，并实现较高的检测效果即可。The embodiments of the present disclosure also provide an electronic device that applies the above-mentioned sensor. The electronic device can be a smart watch, smart bracelet, medical detection device, etc. The specific form of the electronic device is not limited here, as long as the sensor can be used to detect breathing, heartbeat and body temperature at the same time, and achieve a high detection effect. .
例如，电子设备还包括：电荷放大器，连接到所述传感器的正级和负极，读取第一检测信号和第二检测信号；控制器，分别连接到电荷放大器和电流检测装置，根据第一检测信号和第二检测信号的变化频率而得到呼吸频率和心跳频率，且根据电流检测装置的电流变化量得到体温。For example, the electronic device further includes: a charge amplifier, connected to the positive and negative electrodes of the sensor, to read the first detection signal and the second detection signal; a controller, respectively connected to the charge amplifier and the current detection device, according to the first detection The frequency of change of the signal and the second detection signal is used to obtain the breathing frequency and the heartbeat frequency, and the body temperature is obtained according to the current change of the current detection device.
本公开的实施例还提供了一种生命体征监测方法，利用如前述任意实施例所述的传感器，包括：The embodiments of the present disclosure also provide a vital signs monitoring method, using the sensor as described in any of the foregoing embodiments, including:
将所述第一感测部3和第二感测部4固定在胸部；Fix the first sensing part 3 and the second sensing part 4 on the chest;
读取第一检测信号和第二检测信号；Reading the first detection signal and the second detection signal;
获取第一检测信号的变化频率和第二检测信号的变化频率，Acquiring the change frequency of the first detection signal and the change frequency of the second detection signal,
获取电流检测装置的电流检测值，Get the current detection value of the current detection device,
根据所述电流检测值的变化量得到体温。The body temperature is obtained according to the amount of change in the current detection value.
例如，可以记录标准体温下标准电流值，后面测得的电流值与标准电流值进行比较而得到测得的电流值下对应的温度。For example, you can record the standard current value at the standard body temperature, and compare the current value measured later with the standard current value to obtain the temperature corresponding to the measured current value.
本公开的实施例提供一种传感器和电子设备以及生命体征检测方法，能 够同时检测呼吸、心跳和体温，并实现较高的检测效果。The embodiments of the present disclosure provide a sensor, an electronic device, and a vital sign detection method, which can simultaneously detect respiration, heartbeat, and body temperature, and achieve a high detection effect.
还有以下几点需要说明：The following points need to be explained:
(1)本公开实施例的附图只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。(1) The drawings of the embodiments of the present disclosure only refer to the structures related to the embodiments of the present disclosure, and other structures can refer to the usual design.
(2)为了清晰起见，在用于描述本公开的实施例的附图中，层或区域的厚度被放大或缩小，即这些附图并非按照实际的比例绘制。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”或者可以存在中间元件。(2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is enlarged or reduced, that is, these drawings are not drawn according to actual scale. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, the element can be "directly" on or "under" the other element or There may be intermediate elements.
(3)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。(3) In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
以上实施例仅为本公开的示例性实施例，不用于限制本公开，本公开的保护范围由权利要求书限定。本领域技术人员可以在本公开的实质和保护范围内，对本公开做出各种修改或等同替换，这种修改或等同替换也应视为落在本公开的保护范围内。The above embodiments are only exemplary embodiments of the present disclosure, and are not used to limit the present disclosure, and the protection scope of the present disclosure is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this disclosure within the essence and protection scope of the disclosure, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the disclosure.
本申请要求于2019年3月29日递交的中国专利申请第201910251440.7号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。This application claims the priority of the Chinese patent application No. 201910251440.7 filed on March 29, 2019, and the contents of the above-mentioned Chinese patent application are quoted here in full as a part of this application.

Claims (20)

  1. 一种传感器，包括：A sensor including:
    第一基体，具有第一面，包括在所述第一面上的第一感测部；The first substrate has a first surface, and includes a first sensing portion on the first surface;
    第一信号生成组件和第二信号生成组件，二者均设置在所述第一面上；A first signal generating component and a second signal generating component, both of which are arranged on the first surface;
    运动感应件，设置在所述第一面上且与所述第一面之间具有振动间隙，所述运动感应件包括第二感测部和第三感测部，The motion sensing element is arranged on the first surface and has a vibration gap with the first surface, the motion sensing element includes a second sensing portion and a third sensing portion,
    其中所述第一感测部和所述第二感测部可相对移动，当所述第一感测部和所述第二感测部相背移动时，所述第二信号生成组件被触发而生成第一检测信号；所述第三感测部用于感测外部振动，并带动所述运动感应件沿垂直于所述第一面方向振动，以触发所述第一信号生成组件生成第二检测信号。The first sensing portion and the second sensing portion are relatively movable, and when the first sensing portion and the second sensing portion move away from each other, the second signal generating component is triggered The first detection signal is generated; the third sensing part is used to sense external vibration and drive the motion sensing element to vibrate in a direction perpendicular to the first surface to trigger the first signal generating component to generate the first signal 2. Detection signal.
  2. 根据权利要求1所述的传感器，其中所述运动感应件包括第一连接部和第二连接部，所述运动感应件通过所述第一连接部和所述第二连接部可移动地连接在所述第一基体上。The sensor according to claim 1, wherein the motion sensing element includes a first connecting part and a second connecting part, and the motion sensing element is movably connected to the first connecting part and the second connecting part. On the first substrate.
  3. 根据权利要求2所述的传感器，其中所述第一连接部作为所述第二感测部，所述第二连接部用于触发所述第二信号生成组件。4. The sensor according to claim 2, wherein the first connecting portion serves as the second sensing portion, and the second connecting portion is used to trigger the second signal generating component.
  4. 根据权利要求3所述的传感器，其中所述第三感测部位于所述第一连接部和所述第二连接部之间。The sensor according to claim 3, wherein the third sensing part is located between the first connecting part and the second connecting part.
  5. 根据权利要求3所述的传感器，其中所述第一感测部包括设置在所述第一面上的凸出部。The sensor according to claim 3, wherein the first sensing portion includes a protrusion provided on the first surface.
  6. 根据权利要求5所述的传感器，其中所述凸出部内设有导向腔，所述第二信号生成组件设置在所述导向腔内，所述第二连接部可移动地设置在所述导向腔内。The sensor according to claim 5, wherein a guide cavity is provided in the protruding portion, the second signal generating component is provided in the guide cavity, and the second connecting portion is movably provided in the guide cavity. Cavity.
  7. 根据权利要求6所述的传感器，其中所述第二连接部和所述第二信号生成组件沿所述第一感测部和所述第二感测部的相对移动方向依次设置在所述导向腔内。The sensor according to claim 6, wherein the second connecting portion and the second signal generating component are sequentially arranged on the guide along the relative movement direction of the first sensing portion and the second sensing portion. Cavity.
  8. 根据权利要求1-7中任一项所述的传感器，其中所述第二信号生成组件包括压电薄膜和与所述压电薄膜连接的电极。7. The sensor according to any one of claims 1-7, wherein the second signal generating component comprises a piezoelectric film and an electrode connected to the piezoelectric film.
  9. 根据权利要求8所述的传感器，其中所述第二信号生成组件的压电薄膜沿所述第一感测部和所述第二感测部的相对移动方向设置在所述第二连接部的面对所述第一连接部的一侧。8. The sensor according to claim 8, wherein the piezoelectric film of the second signal generating component is arranged on the second connecting portion along the relative movement direction of the first sensing portion and the second sensing portion. One side facing the first connecting part.
  10. 根据权利要求1-9中任一项所述的传感器，其中所述运动感应件还包括复位件，所述复位件用于向所述运动感应件施加复位弹性力，以使所述第二连接部触发所述第一信号生成组件后复位。8. The sensor according to any one of claims 1-9, wherein the motion sensing member further comprises a resetting member, and the resetting member is used to apply a reset elastic force to the motion sensing member to make the second connection After triggering the first signal generating component, it is reset.
  11. 根据权利要求10所述的传感器，其中所述复位件为弹簧，所述弹簧的一段固定到所述运动感应件，另一端固定到所述凸出部。The sensor according to claim 10, wherein the return member is a spring, one end of the spring is fixed to the motion sensing member, and the other end is fixed to the protrusion.
  12. 根据权利要求3所述的传感器，其中所述第一面上设有导轨，所述第一连接部可移动地连接在所述导轨上。The sensor according to claim 3, wherein a guide rail is provided on the first surface, and the first connecting portion is movably connected to the guide rail.
  13. 根据权利要求1所述的传感器，其中所述第一信号生成组件设置在所述第一面的面对所述第三感测部的一侧且位于所述振动间隙内，所述第三感测部位于所述第一信号生成组件的远离所述第一面的一侧。The sensor according to claim 1, wherein the first signal generating component is arranged on a side of the first surface facing the third sensing part and is located in the vibration gap, and the third sensor The measuring part is located on a side of the first signal generating component away from the first surface.
  14. 根据权利要求13所述的传感器，其中所述第二信号生成组件包括压电薄膜和与所述压电薄膜连接的电极。The sensor according to claim 13, wherein the second signal generating component includes a piezoelectric film and an electrode connected to the piezoelectric film.
  15. 根据权利要求14所述的传感器，其中所述压电薄膜位于所述第一面与所述第三感测部之间。The sensor according to claim 14, wherein the piezoelectric film is located between the first surface and the third sensing part.
  16. 根据权利要求1-15中任一项所述的传感器，其中所述第一基体还具有与所述第一面相对的第二面，所述第二面上设有体温检测组件。The sensor according to any one of claims 1-15, wherein the first substrate further has a second surface opposite to the first surface, and a body temperature detection component is provided on the second surface.
  17. 根据权利要求16所述的传感器，其中所述体温检测组件包括：The sensor according to claim 16, wherein the body temperature detection component comprises:
    第二基体，其连接在所述第一基体的所述第二面上，并能够随温度变化产生形变；A second base body, which is connected to the second surface of the first base body and can deform with temperature changes;
    压电半导体层，其绝缘连接在所述第二基体远离所述第一基体的一侧；A piezoelectric semiconductor layer, which is insulated and connected to the side of the second substrate away from the first substrate;
    第一电极和第二电极，其固定在所述压电半导体远离所述第二基体的一侧并与所述压电半导体层形成肖特基接触；A first electrode and a second electrode, which are fixed on the side of the piezoelectric semiconductor away from the second base body and form Schottky contact with the piezoelectric semiconductor layer;
    检测电路，其分别与所述第一电极和第二电极连接。The detection circuit is respectively connected with the first electrode and the second electrode.
  18. 根据权利要求17所述的传感器，其中所述检测电路包括供电模块和电流检测装置，所述第一电极、所述供电模块、所述电流检测装置及所述第二电极依次串联连接。The sensor according to claim 17, wherein the detection circuit comprises a power supply module and a current detection device, and the first electrode, the power supply module, the current detection device and the second electrode are sequentially connected in series.
  19. 一种电子设备，包括如权利要求1-18中任一项所述的传感器。An electronic device comprising the sensor according to any one of claims 1-18.
  20. 一种生命体征检测方法，采用如权利要求1-18中任一项所述的传感器进行，该检测方法包括：A method for detecting vital signs, using the sensor according to any one of claims 1-18, the method comprising:
    将所述第一感测部和第二感测部固定在胸部；Fixing the first sensing part and the second sensing part on the chest;
    读取第一检测信号和第二检测信号；Reading the first detection signal and the second detection signal;
    获取第一检测信号的变化频率和第二检测信号的变化频率。Obtain the change frequency of the first detection signal and the change frequency of the second detection signal.
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