WO2021208298A1 - Separately excited vibrational physical sign sensor - Google Patents

Separately excited vibrational physical sign sensor Download PDF

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Publication number
WO2021208298A1
WO2021208298A1 PCT/CN2020/106714 CN2020106714W WO2021208298A1 WO 2021208298 A1 WO2021208298 A1 WO 2021208298A1 CN 2020106714 W CN2020106714 W CN 2020106714W WO 2021208298 A1 WO2021208298 A1 WO 2021208298A1
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Prior art keywords
vibration
container
physical sign
piezoelectric ceramic
sign sensor
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PCT/CN2020/106714
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French (fr)
Chinese (zh)
Inventor
刘文超
陆荣信
杜继常
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上海贝氪若宝健康科技有限公司
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Priority claimed from CN202010297226.8A external-priority patent/CN111387967A/en
Priority claimed from CN202020560807.1U external-priority patent/CN212346521U/en
Application filed by 上海贝氪若宝健康科技有限公司 filed Critical 上海贝氪若宝健康科技有限公司
Publication of WO2021208298A1 publication Critical patent/WO2021208298A1/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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb

Definitions

  • the invention relates to a human body health detection device, in particular to an externally excited vibration type physical sign sensor.
  • the current technologies for heart rate detection mainly include photoelectricity, ECG, and vibration. Among them, photoelectric and ECG-based detection methods must be directly contacted by the detection device and the human body, and vibration can be achieved. Non-contact heart rate detection.
  • Piezoelectric ceramic sheet is a kind of transducer element with piezoelectric ceramic pasted on metal sheet. When the piezoelectric ceramic sheet vibrates, a voltage signal will be formed on the surface of the piezoelectric ceramic.
  • the technical problem to be solved by the present invention is to provide a separately excited vibration type physical sign sensor with simple structure and high measurement accuracy, which can be widely used in medical, scientific research, smart home, wearable equipment and other fields .
  • an externally excited vibration type physical sign sensor including:
  • Vibration sensing container that captures the physiological activity information of the human body
  • the vibration feedback container includes a shell with a single side opening and a piezoelectric ceramic sheet sealingly arranged at the opening of the shell;
  • Both ends of the connecting pipe are respectively connected with the vibration induction container and the vibration feedback container, so that the inner cavity of the vibration induction container and the inner cavity of the vibration feedback container together form a sealed accommodating cavity, and the sealed accommodating cavity is filled with a fluid medium ;
  • the detection device is electrically connected to the piezoelectric ceramic sheet
  • the detection device detects the voltage fluctuation of the piezoelectric ceramic sheet and converts the voltage change into physical sign information.
  • the vibration-sensitive container is made of a flexible material, and the vibration-sensitive container is provided with an elastic support member for supporting the vibration-sensitive container.
  • the vibration-sensitive container is in the shape of a capsule.
  • the vibration feedback container further includes a blocking cover provided at the opening of the housing, so that the outer periphery of the piezoelectric ceramic sheet is in a sealed connection with the opening of the housing.
  • connection nozzle detachably connected with the communication pipe is provided on the housing.
  • the fluid medium is a gas.
  • the vibration-sensitive container is arranged on household items or wearable equipment.
  • the household items are one of mattresses, pillows, and cushions.
  • the physical sign information is one of human body movement, pulse, and respiration.
  • the detection device includes a detection circuit, and the detection circuit is connected to the piezoelectric ceramic sheet through a signal line.
  • the separately excited vibration type physical sign sensor of the present invention has the following beneficial effects:
  • the vibration sensing container captures human physiological activity information
  • the inner cavity of the vibration sensing container is slightly compressed and expanded due to human physiological activity.
  • vibration which in turn causes the pressure of the fluid medium in the vibration-sensitive container to change.
  • the inner cavity of the vibration sensing container and the inner cavity of the vibration feedback container jointly form a sealed accommodating cavity.
  • the pressure change of the fluid medium in the vibration sensing container will affect the pressure change of the fluid medium in the vibration feedback container, thereby forcing the pressure
  • the electric ceramic sheet vibrates. When the piezoelectric ceramic sheet vibrates, the voltage of the piezoelectric ceramic sheet will change accordingly.
  • the detection device detects the voltage fluctuation of the piezoelectric ceramic sheet in real time, and converts the voltage change into corresponding physical sign information. Therefore, the separately excited vibration type physical sign sensor of the present invention has a simple structure and high measurement accuracy, and can be widely used in medical, scientific research, smart home, wearable equipment and other fields.
  • Figure 1 shows a cross-sectional view of the separately excited vibration type physical sign sensor of the present invention
  • Figure 2 shows an exploded view of the separately excited vibration type physical sign sensor of the present invention
  • Fig. 3 shows an enlarged view of part A in Fig. 2.
  • the present invention provides a separately excited vibration type physical sign sensor, including:
  • Vibration sensing container 1 that captures information on the physiological activities of the human body
  • the vibration feedback container 2 includes a housing 21 with a single side opening and a piezoelectric ceramic sheet 22 sealed at the opening of the housing 21;
  • the two ends of the connecting pipe 3 and the connecting pipe 3 are respectively connected with the vibration induction container 1 and the vibration feedback container 2, so that the inner cavity of the vibration induction container 1 and the inner cavity of the vibration feedback container 2 together form a sealed accommodating cavity, which is sealed to accommodate
  • the cavity is filled with fluid medium 4;
  • the detection device 5 is electrically connected to the piezoelectric ceramic sheet 22;
  • the detection device 5 detects the voltage fluctuation of the piezoelectric ceramic sheet 22 and converts the voltage change into physical sign information.
  • the physical sign information can be one of human body movement, pulse, and respiration.
  • the vibration sensing container 1 captures the physiological activity information of the human body (the physiological activity of the human body includes the movement of the body and organs, for example, the weak vibration of the human body due to heartbeat, and another example, the weak vibration of the human body due to breathing).
  • the physiological activities of the human body cause the inner cavity of the vibration-sensitive container 1 to slightly compress, expand and vibrate, which in turn causes the pressure of the fluid medium 4 in the vibration-sensitive container 1 to change.
  • the connecting pipe 3 due to the connecting pipe 3, the inner cavity of the vibration sensing container 1 and the inner cavity of the vibration feedback container 2 together form a sealed accommodating cavity.
  • the pressure change of the fluid medium 4 in the vibration sensing container 1 will affect the fluid medium 4 in the vibration feedback container 2
  • the detection device 5 detects the voltage change of the piezoelectric ceramic sheet 22 in real time, and converts the voltage change into corresponding physical sign information (such as pulse, respiration, and other body movement information). Therefore, the externally excited vibration type physical sign sensor of the present invention has simple structure and high measurement accuracy, and can be widely used in medical treatment (such as medical vital sign monitoring and early warning equipment), scientific research, smart home (such as household sleep quality monitoring products), wearable equipment and other fields .
  • the above-mentioned vibration-sensitive container 1 is made of a flexible material, and the vibration-sensitive container 1 is provided with an elastic support 11 for supporting the vibration-sensitive container 1.
  • the elastic support 11 may be made of a sponge material to ensure that a cavity that can be filled with a fluid medium is formed inside the vibration-sensitive container 1.
  • the shape of the vibration-sensitive container 1 has a variety of styles.
  • the vibration-sensitive container 1 is in the shape of a capsule, which is convenient for effectively capturing the physiological activity information of the human body.
  • the vibration feedback container 2 further includes a blocking cover 23 which is provided at the opening of the housing 21 so that The outer periphery of the piezoelectric ceramic sheet 22 is hermetically connected to the opening of the housing 21.
  • a sealing ring 25 is sandwiched between the piezoelectric ceramic sheet 22 and the opening of the housing 21.
  • the housing 21 is provided with a connection nozzle 24 that is detachably connected to the communication pipe 3.
  • the above-mentioned fluid medium 4 may be a gas or a liquid. If gas is used as the fluid medium 4, the measurement accuracy of the externally excited vibration sensor is higher.
  • the above-mentioned vibration-sensitive container 1 can be arranged on household goods or wearable equipment.
  • the aforementioned household items are one of mattresses, pillows, and cushions.
  • the vibration-sensitive container 1 is stuffed into the mattress interlayer, the inside of the pillow, and the inside of the cushion.
  • the detection device 5 includes a detection circuit, and the detection circuit is connected to the piezoelectric ceramic sheet 22 through a signal line 51.
  • the separately excited vibration type physical sign sensor of the present invention has a simple structure and high measurement accuracy, and can be widely used in the fields of medical treatment, scientific research, smart home, wearable equipment and the like. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial value.

Abstract

A separately excited vibrational physical sign sensor, comprising: a vibration sensing container (1) for capturing human physiological activity information; a vibration feedback container (2), the vibration feedback container (2) comprising a housing (21) opened on one side and a piezoelectric ceramic plate (22) sealedly provided at the opening of the housing (21); a communicating pipe (3), the communicating pipe (3) being in communication on either end respectively with the vibration sensing container (1) and the vibration feedback container (2), thus allowing the cavity of the vibration sensing container (1) and the cavity of the vibration feedback container (2) to jointly form one sealed accommodating cavity, the sealed accommodating cavity being filled with a fluid medium (4); and a detecting device (5), the detecting device (5) being electrically connected to the piezoelectric ceramic plate (22). The separately excited vibrational physical sign sensor is structurally simple, provides high measurement precision, is broadly applicable in the fields of medicine, scientific research, smart homes, and wearable devices.

Description

他激振动式体征传感器Heterogeneous Vibration Sign Sensor 技术领域Technical field
本发明涉及一种人体健康检测设备，特别是涉及一种他激振动式体征传感器。The invention relates to a human body health detection device, in particular to an externally excited vibration type physical sign sensor.
背景技术Background technique
根据世界卫生组织的统计，心血管病死亡率居首位，明显高于肿瘤及其他疾病。持续的心率监测有助于诊断疾病，而目前针对心率检测的技术主要有光电、心电、振动，其中基于光电、心电的检测方式必须通过检测设备与人体之间直接接触，振动则可以实现非接触式心率检测。According to the statistics of the World Health Organization, the death rate of cardiovascular diseases ranks first, significantly higher than that of tumors and other diseases. Continuous heart rate monitoring helps diagnose diseases. The current technologies for heart rate detection mainly include photoelectricity, ECG, and vibration. Among them, photoelectric and ECG-based detection methods must be directly contacted by the detection device and the human body, and vibration can be achieved. Non-contact heart rate detection.
压电陶瓷片是一种以压电陶瓷粘贴在金属片上的换能元件，当压电陶瓷片振动时会在压电陶瓷表面形成电压信号。Piezoelectric ceramic sheet is a kind of transducer element with piezoelectric ceramic pasted on metal sheet. When the piezoelectric ceramic sheet vibrates, a voltage signal will be formed on the surface of the piezoelectric ceramic.
发明内容Summary of the invention
鉴于以上所述现有技术的缺点，本发明要解决的技术问题在于提供一种他激振动式体征传感器，结构简单、测量精度高，能够广泛应用于医疗、科研、智能家居、穿戴设备等领域。In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a separately excited vibration type physical sign sensor with simple structure and high measurement accuracy, which can be widely used in medical, scientific research, smart home, wearable equipment and other fields .
为了解决上述技术问题，本发明提供一种他激振动式体征传感器，包括：In order to solve the above technical problems, the present invention provides an externally excited vibration type physical sign sensor, including:
捕捉人体生理活动信息的振动感应容器；Vibration sensing container that captures the physiological activity information of the human body;
振动反馈容器，振动反馈容器包括单侧开口的壳体以及密封设置在壳体开口处的压电陶瓷片；Vibration feedback container, the vibration feedback container includes a shell with a single side opening and a piezoelectric ceramic sheet sealingly arranged at the opening of the shell;
连通管，连通管的两端分别与振动感应容器、振动反馈容器连通，使振动感应容器的内腔和振动反馈容器的内腔共同形成一个密封容置腔，密封容置腔内填充有流体介质；Connecting pipe. Both ends of the connecting pipe are respectively connected with the vibration induction container and the vibration feedback container, so that the inner cavity of the vibration induction container and the inner cavity of the vibration feedback container together form a sealed accommodating cavity, and the sealed accommodating cavity is filled with a fluid medium ；
检测装置，检测装置与压电陶瓷片电性连接；The detection device is electrically connected to the piezoelectric ceramic sheet;
当人体与振动感应容器直接或间接抵靠时，振动感应容器的内腔容积因人体生理活动而发生变化，进而振动反馈容器内流体介质对压电陶瓷片的压强发生变化，从而压电陶瓷片被迫产生振动，最后检测装置检测压电陶瓷片的电压波动并将电压变化转化成体征信息。When the human body directly or indirectly abuts against the vibration-sensitive container, the inner cavity volume of the vibration-sensitive container changes due to the physiological activities of the human body, and the pressure of the fluid medium in the vibration feedback container on the piezoelectric ceramic sheet changes, so that the piezoelectric ceramic sheet Forced to vibrate, and finally the detection device detects the voltage fluctuation of the piezoelectric ceramic sheet and converts the voltage change into physical sign information.
优选地，所述振动感应容器由柔性材料制成，振动感应容器内设有撑开振动感应容器的弹性支撑件。Preferably, the vibration-sensitive container is made of a flexible material, and the vibration-sensitive container is provided with an elastic support member for supporting the vibration-sensitive container.
优选地，所述振动感应容器呈囊状。Preferably, the vibration-sensitive container is in the shape of a capsule.
优选地，所述振动反馈容器还包括封挡盖，封挡盖设在壳体的开口处，使压电陶瓷片的外周缘与壳体的开口处密封连接。Preferably, the vibration feedback container further includes a blocking cover provided at the opening of the housing, so that the outer periphery of the piezoelectric ceramic sheet is in a sealed connection with the opening of the housing.
优选地，所述壳体上设有与连通管可拆卸连接的连接嘴。Preferably, a connection nozzle detachably connected with the communication pipe is provided on the housing.
优选地，所述流体介质为气体。Preferably, the fluid medium is a gas.
优选地，所述振动感应容器布置在家居用品或穿戴设备上。Preferably, the vibration-sensitive container is arranged on household items or wearable equipment.
优选地，所述家居用品为床垫、枕头、坐垫其中的一种。Preferably, the household items are one of mattresses, pillows, and cushions.
优选地，所述体征信息为人体移动、脉搏、呼吸其中的一种。Preferably, the physical sign information is one of human body movement, pulse, and respiration.
优选地，所述检测装置包括检测电路，检测电路通过信号线与压电陶瓷片连接。Preferably, the detection device includes a detection circuit, and the detection circuit is connected to the piezoelectric ceramic sheet through a signal line.
如上所述，本发明的他激振动式体征传感器，具有以下有益效果：在本发明中，振动感应容器捕捉人体生理活动信息，由于人体生理活动使振动感应容器的内腔发生轻微的压缩、扩张以及振动，进而导致振动感应容器内流体介质的压强发生变化。又由于连通管使振动感应容器的内腔和振动反馈容器的内腔共同形成一个密封容置腔，振动感应容器内流体介质的压强变化会影响振动反馈容器内流体介质的压强变化，从而迫使压电陶瓷片发生振动。当压电陶瓷片产生振动时，压电陶瓷片的电压会随之产生变化。最后，检测装置实时检测压电陶瓷片的电压波动，并将该电压变化转化成对应的体征信息。因此，本发明的他激振动式体征传感器结构简单、测量精度高，能够广泛应用于医疗、科研、智能家居、穿戴设备等领域。As mentioned above, the separately excited vibration type physical sign sensor of the present invention has the following beneficial effects: In the present invention, the vibration sensing container captures human physiological activity information, and the inner cavity of the vibration sensing container is slightly compressed and expanded due to human physiological activity. And vibration, which in turn causes the pressure of the fluid medium in the vibration-sensitive container to change. In addition, due to the connecting pipe, the inner cavity of the vibration sensing container and the inner cavity of the vibration feedback container jointly form a sealed accommodating cavity. The pressure change of the fluid medium in the vibration sensing container will affect the pressure change of the fluid medium in the vibration feedback container, thereby forcing the pressure The electric ceramic sheet vibrates. When the piezoelectric ceramic sheet vibrates, the voltage of the piezoelectric ceramic sheet will change accordingly. Finally, the detection device detects the voltage fluctuation of the piezoelectric ceramic sheet in real time, and converts the voltage change into corresponding physical sign information. Therefore, the separately excited vibration type physical sign sensor of the present invention has a simple structure and high measurement accuracy, and can be widely used in medical, scientific research, smart home, wearable equipment and other fields.
附图说明Description of the drawings
图1显示为本发明的他激振动式体征传感器的剖视图；Figure 1 shows a cross-sectional view of the separately excited vibration type physical sign sensor of the present invention;
图2显示为本发明的他激振动式体征传感器的爆炸图；Figure 2 shows an exploded view of the separately excited vibration type physical sign sensor of the present invention;
图3显示为图2中A部分的放大图。Fig. 3 shows an enlarged view of part A in Fig. 2.
元件标号说明Component label description
1                      振动感应容器1 Vibration induction container
11                     弹性支撑件11 Elastic support
2                      振动反馈容器2 Vibration feedback container
21                     壳体21 Shell
22                     压电陶瓷片22 Piezoelectric ceramic sheet
23                     封挡盖23 Sealing the cover
24                     连接嘴24 Connecting mouth
25                     密封圈25 Sealing ring
3                      连通管3 Connecting pipe
4                      流体介质4 Fluid medium
5                      检测装置5 Detection device
51                     信号线51 Signal line
具体实施方式Detailed ways
以下由特定的具体实施例说明本发明的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效。The following specific examples illustrate the implementation of the present invention. Those familiar with the technology can easily understand the other advantages and effects of the present invention from the content disclosed in this specification.
须知，本说明书所附图中所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在本发明所揭示的技术内容所能涵盖的范围内。同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the implementation of the present invention. Limited conditions, so it has no technical significance. Any structural modification, proportional relationship change or size adjustment should still fall within the present invention without affecting the effects and objectives that can be achieved by the present invention. Within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for ease of description, not to limit the text. The scope of implementation of the invention, the change or adjustment of its relative relationship, shall be regarded as the scope of implementation of the invention without substantial changes to the technical content.
如图1、图2以及图3所示，本发明提供一种他激振动式体征传感器，包括：As shown in Figure 1, Figure 2 and Figure 3, the present invention provides a separately excited vibration type physical sign sensor, including:
捕捉人体生理活动信息的振动感应容器1；Vibration sensing container 1 that captures information on the physiological activities of the human body;
振动反馈容器2，振动反馈容器2包括单侧开口的壳体21以及密封设置在壳体21开口处的压电陶瓷片22；The vibration feedback container 2 includes a housing 21 with a single side opening and a piezoelectric ceramic sheet 22 sealed at the opening of the housing 21;
连通管3，连通管3的两端分别与振动感应容器1、振动反馈容器2连通，使振动感应容器1的内腔和振动反馈容器2的内腔共同形成一个密封容置腔，密封容置腔内填充有流体介质4；The two ends of the connecting pipe 3 and the connecting pipe 3 are respectively connected with the vibration induction container 1 and the vibration feedback container 2, so that the inner cavity of the vibration induction container 1 and the inner cavity of the vibration feedback container 2 together form a sealed accommodating cavity, which is sealed to accommodate The cavity is filled with fluid medium 4;
检测装置5，检测装置5与压电陶瓷片22电性连接；The detection device 5 is electrically connected to the piezoelectric ceramic sheet 22;
当人体与振动感应容器1直接或间接抵靠时，振动感应容器1的内腔容积因人体生理活动而发生变化，进而振动反馈容器2内流体介质4对压电陶瓷片22的压强发生变化，从而压电陶瓷片22被迫产生振动，最后检测装置5检测压电陶瓷片22的电压波动并将电压变化转化成体征信息。该体征信息可以为人体移动、脉搏、呼吸其中的一种。When the human body directly or indirectly abuts against the vibration sensing container 1, the inner cavity volume of the vibration sensing container 1 changes due to the physiological activities of the human body, and the pressure of the fluid medium 4 in the vibration feedback container 2 on the piezoelectric ceramic sheet 22 changes. As a result, the piezoelectric ceramic sheet 22 is forced to vibrate, and finally the detection device 5 detects the voltage fluctuation of the piezoelectric ceramic sheet 22 and converts the voltage change into physical sign information. The physical sign information can be one of human body movement, pulse, and respiration.
在本发明中，振动感应容器1捕捉人体生理活动信息(人体生理活动包括身体和器官的运动，例如，人体因心跳而产生的微弱振动，再例如，人体因呼吸而产生的微弱振动)，由于人体生理活动使振动感应容器1的内腔发生轻微的压缩、扩张以及振动，进而导致振动感应容器1内流体介质4的压强发生变化。又由于连通管3使振动感应容器1的内腔和振动反 馈容器2的内腔共同形成一个密封容置腔，振动感应容器1内流体介质4的压强变化会影响振动反馈容器2内流体介质4的压强变化，从而迫使压电陶瓷片22发生振动。当压电陶瓷片22产生振动时，压电陶瓷片22的电压会随之产生变化。最后，检测装置5实时检测压电陶瓷片22的电压变化，并将该电压变化转化成对应的体征信息(如脉搏、呼吸以及其他身体运动信息)。因此，本发明的他激振动式体征传感器结构简单、测量精度高，能够广泛应用于医疗(如医用生命体征监测预警设备)、科研、智能家居(如家用睡眠质量监测产品)、穿戴设备等领域。In the present invention, the vibration sensing container 1 captures the physiological activity information of the human body (the physiological activity of the human body includes the movement of the body and organs, for example, the weak vibration of the human body due to heartbeat, and another example, the weak vibration of the human body due to breathing). The physiological activities of the human body cause the inner cavity of the vibration-sensitive container 1 to slightly compress, expand and vibrate, which in turn causes the pressure of the fluid medium 4 in the vibration-sensitive container 1 to change. In addition, due to the connecting pipe 3, the inner cavity of the vibration sensing container 1 and the inner cavity of the vibration feedback container 2 together form a sealed accommodating cavity. The pressure change of the fluid medium 4 in the vibration sensing container 1 will affect the fluid medium 4 in the vibration feedback container 2 The pressure changes of, thereby forcing the piezoelectric ceramic sheet 22 to vibrate. When the piezoelectric ceramic sheet 22 vibrates, the voltage of the piezoelectric ceramic sheet 22 will change accordingly. Finally, the detection device 5 detects the voltage change of the piezoelectric ceramic sheet 22 in real time, and converts the voltage change into corresponding physical sign information (such as pulse, respiration, and other body movement information). Therefore, the externally excited vibration type physical sign sensor of the present invention has simple structure and high measurement accuracy, and can be widely used in medical treatment (such as medical vital sign monitoring and early warning equipment), scientific research, smart home (such as household sleep quality monitoring products), wearable equipment and other fields .
为了有效捕捉上述人体生理活动信息，上述振动感应容器1由柔性材料制成，振动感应容器1内设有撑开振动感应容器1的弹性支撑件11。具体的，弹性支撑件11可以由海绵材料制成，以确保振动感应容器1的内部形成可填充流体介质的空腔。In order to effectively capture the above-mentioned physiological activity information of the human body, the above-mentioned vibration-sensitive container 1 is made of a flexible material, and the vibration-sensitive container 1 is provided with an elastic support 11 for supporting the vibration-sensitive container 1. Specifically, the elastic support 11 may be made of a sponge material to ensure that a cavity that can be filled with a fluid medium is formed inside the vibration-sensitive container 1.
上述振动感应容器1的形状具有多种样式，例如，上述振动感应容器1呈囊状，这样便于有效捕捉人体生理活动信息。The shape of the vibration-sensitive container 1 has a variety of styles. For example, the vibration-sensitive container 1 is in the shape of a capsule, which is convenient for effectively capturing the physiological activity information of the human body.
如图3所示，为了使上述压电陶瓷片22密封设置在壳体21的开口处，上述振动反馈容器2还包括封挡盖23，封挡盖23设在壳体21的开口处，使压电陶瓷片22的外周缘与壳体21的开口处密封连接。具体的，为了提高壳体21的内腔的密封性，压电陶瓷片22和壳体21的开口处之间夹设有密封圈25。As shown in FIG. 3, in order to seal the piezoelectric ceramic sheet 22 at the opening of the housing 21, the vibration feedback container 2 further includes a blocking cover 23 which is provided at the opening of the housing 21 so that The outer periphery of the piezoelectric ceramic sheet 22 is hermetically connected to the opening of the housing 21. Specifically, in order to improve the sealing performance of the inner cavity of the housing 21, a sealing ring 25 is sandwiched between the piezoelectric ceramic sheet 22 and the opening of the housing 21.
为了便于连接上述振动反馈容器2和连通管3，上述壳体21上设有与连通管3可拆卸连接的连接嘴24。In order to facilitate the connection between the vibration feedback container 2 and the communication pipe 3, the housing 21 is provided with a connection nozzle 24 that is detachably connected to the communication pipe 3.
上述流体介质4可以为气体，也可以为液体。若流体介质4采用气体，他激振动式体征传感器的测量精度更高。The above-mentioned fluid medium 4 may be a gas or a liquid. If gas is used as the fluid medium 4, the measurement accuracy of the externally excited vibration sensor is higher.
上述振动感应容器1能够布置在家居用品或穿戴设备上。具体的，上述家居用品为床垫、枕头、坐垫其中的一种。在具体使用时，将振动感应容器1塞入床垫夹层、枕头内部以及坐垫内部。The above-mentioned vibration-sensitive container 1 can be arranged on household goods or wearable equipment. Specifically, the aforementioned household items are one of mattresses, pillows, and cushions. In specific use, the vibration-sensitive container 1 is stuffed into the mattress interlayer, the inside of the pillow, and the inside of the cushion.
为了检测上述压电陶瓷片22的电压，上述检测装置5包括检测电路，检测电路通过信号线51与压电陶瓷片22连接。In order to detect the voltage of the piezoelectric ceramic sheet 22, the detection device 5 includes a detection circuit, and the detection circuit is connected to the piezoelectric ceramic sheet 22 through a signal line 51.
综上所述，本发明的他激振动式体征传感器结构简单、测量精度高，能够广泛应用于医疗、科研、智能家居、穿戴设备等领域。所以，本发明有效克服了现有技术中的种种缺点而具高度产业利用价值。In summary, the separately excited vibration type physical sign sensor of the present invention has a simple structure and high measurement accuracy, and can be widely used in the fields of medical treatment, scientific research, smart home, wearable equipment and the like. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial value.
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡 所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present invention, but are not used to limit the present invention. Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (10)

  1. 一种他激振动式体征传感器，其特征在于，包括：An externally excited vibration type physical sign sensor is characterized in that it comprises:
    捕捉人体生理活动信息的振动感应容器(1)；Vibration sensing container (1) that captures information on human physiological activities;
    振动反馈容器(2)，振动反馈容器(2)包括单侧开口的壳体(21)以及密封设置在壳体(21)开口处的压电陶瓷片(22)；The vibration feedback container (2), the vibration feedback container (2) includes a shell (21) with a single side opening and a piezoelectric ceramic sheet (22) sealed at the opening of the shell (21);
    连通管(3)，连通管(3)的两端分别与振动感应容器(1)、振动反馈容器(2)连通，使振动感应容器(1)的内腔和振动反馈容器(2)的内腔共同形成一个密封容置腔，密封容置腔内填充有流体介质(4)；The two ends of the connecting pipe (3) and the connecting pipe (3) are respectively connected with the vibration induction container (1) and the vibration feedback container (2), so that the inner cavity of the vibration induction container (1) and the inner cavity of the vibration feedback container (2) The cavities jointly form a sealed accommodating cavity, and the sealed accommodating cavity is filled with a fluid medium (4);
    检测装置(5)，检测装置(5)与压电陶瓷片(22)电性连接；The detection device (5), the detection device (5) and the piezoelectric ceramic sheet (22) are electrically connected;
    当人体与振动感应容器(1)直接或间接抵靠时，振动感应容器(1)的内腔容积因人体生理活动而发生变化，进而振动反馈容器(2)内流体介质(4)对压电陶瓷片(22)的压强发生变化，从而压电陶瓷片(22)被迫产生振动，最后检测装置(5)检测压电陶瓷片(22)的电压波动并将电压变化转化成体征信息。When the human body directly or indirectly abuts against the vibration sensing container (1), the volume of the inner cavity of the vibration sensing container (1) changes due to the physiological activities of the human body, and the fluid medium (4) in the vibration feedback container (2) reacts to the piezoelectric The pressure of the ceramic sheet (22) changes, so that the piezoelectric ceramic sheet (22) is forced to vibrate. Finally, the detection device (5) detects the voltage fluctuation of the piezoelectric ceramic sheet (22) and converts the voltage change into physical sign information.
  2. 根据权利要求1所述的他激振动式体征传感器，其特征在于：所述振动感应容器(1)由柔性材料制成，振动感应容器(1)内设有撑开振动感应容器(1)的弹性支撑件(11)。The other-excited vibration type physical sign sensor according to claim 1, characterized in that: the vibration-sensitive container (1) is made of flexible material, and the vibration-sensitive container (1) is provided with a device for expanding the vibration-sensitive container (1). Elastic support (11).
  3. 根据权利要求2所述的他激振动式体征传感器，其特征在于：所述振动感应容器(1)呈囊状。The other-excited vibration type physical sign sensor according to claim 2, characterized in that: the vibration sensing container (1) is in the shape of a capsule.
  4. 根据权利要求1所述的他激振动式体征传感器，其特征在于：所述振动反馈容器(2)还包括封挡盖(23)，封挡盖(23)设在壳体(21)的开口处，使压电陶瓷片(22)的外周缘与壳体(21)的开口处密封连接。The other-excited vibration type physical sign sensor according to claim 1, characterized in that: the vibration feedback container (2) further comprises a blocking cover (23), and the blocking cover (23) is provided at the opening of the housing (21) At the location, the outer periphery of the piezoelectric ceramic sheet (22) is sealed and connected with the opening of the housing (21).
  5. 根据权利要求1所述的他激振动式体征传感器，其特征在于：所述壳体(21)上设有与连通管(3)可拆卸连接的连接嘴(24)。The other-excited vibration type physical sign sensor according to claim 1, wherein the housing (21) is provided with a connecting mouth (24) that is detachably connected to the connecting pipe (3).
  6. 根据权利要求1所述的他激振动式体征传感器，其特征在于：所述流体介质为气体。The separately excited vibration type physical sign sensor according to claim 1, wherein the fluid medium is a gas.
  7. 根据权利要求1所述的他激振动式体征传感器，其特征在于：所述振动感应容器(1)布置在家居用品或穿戴设备上。The other-excited vibration type physical sign sensor according to claim 1, wherein the vibration-sensitive container (1) is arranged on household items or wearable equipment.
  8. 根据权利要求7所述的他激振动式体征传感器，其特征在于：所述家居用品为床垫、枕头、坐垫其中的一种。The other-excited vibration type physical sign sensor according to claim 7, wherein the household article is one of a mattress, a pillow, and a cushion.
  9. 根据权利要求1所述的他激振动式体征传感器，其特征在于：所述体征信息为人体移动、脉搏、呼吸其中的一种。The other-excited vibration type physical sign sensor according to claim 1, wherein the physical sign information is one of human body movement, pulse, and respiration.
  10. 根据权利要求1所述的他激振动式体征传感器，其特征在于：所述检测装置(5)包括检测电路，检测电路通过信号线(51)与压电陶瓷片(22)连接。The separately excited vibration type physical sign sensor according to claim 1, wherein the detection device (5) comprises a detection circuit, and the detection circuit is connected to the piezoelectric ceramic sheet (22) through a signal line (51).
PCT/CN2020/106714 2020-04-15 2020-08-04 Separately excited vibrational physical sign sensor WO2021208298A1 (en)

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CN202010297226.8A CN111387967A (en) 2020-04-15 2020-04-15 Separately excited vibration type physical sign sensor
CN202020560807.1U CN212346521U (en) 2020-04-15 2020-04-15 Separately excited vibration type physical sign sensor
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US6146332A (en) * 1998-07-29 2000-11-14 3416704 Canada Inc. Movement detector
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