WO2016090899A1 - 一种肺活量的测试方法和设备 - Google Patents

一种肺活量的测试方法和设备 Download PDF

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WO2016090899A1
WO2016090899A1 PCT/CN2015/082671 CN2015082671W WO2016090899A1 WO 2016090899 A1 WO2016090899 A1 WO 2016090899A1 CN 2015082671 W CN2015082671 W CN 2015082671W WO 2016090899 A1 WO2016090899 A1 WO 2016090899A1
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vital capacity
pressure
testing
velocity
tester
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PCT/CN2015/082671
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French (fr)
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闫文明
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歌尔声学股份有限公司
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Priority to US15/507,612 priority Critical patent/US10568543B2/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
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
    • 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
    • A61B5/085—Measuring impedance of respiratory organs or lung elasticity
    • 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
    • A61B5/087—Measuring breath flow
    • 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
    • A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • 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
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface

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  • the present invention relates to the field of mobile terminal technologies, and in particular, to a method and a device for testing vital capacity.
  • a microphone is usually used as a test sensor for spirometry, and the principle is to calculate the airflow velocity by detecting the vibration frequency of the diaphragm caused by the gas. Due to the thin diaphragm and high sensitivity of the microphone, it is easy to break under high frequency pressure and cause failure, which makes the calculation accuracy low and the test result is not reliable.
  • the invention provides a method and a device for testing vital capacity to solve the problem that the microphone test has poor lung vitality accuracy and is easy to damage the microphone in the prior art.
  • the invention provides a method of testing vital capacity comprising:
  • the pressure hole is connected to the outside, and is specially set on the mobile device or designed for the existing opening;
  • the lung capacity Vc of the tester is obtained according to the correspondence relationship between the measurement time t and the air flow velocity v(t).
  • obtaining the airflow velocity v(t) corresponding to each moment includes:
  • obtaining the tester's vital capacity Vc includes:
  • Vc The test subject's vital capacity Vc is obtained, where s is the cross-sectional area of the pressure port lumen.
  • obtaining the tester's vital capacity Vc includes:
  • P max is the maximum pressure value obtained during the measurement time t
  • s is the cross-sectional area of the cavity of the pressure hole.
  • the mobile device comprises a mobile phone and a wearable device.
  • an embodiment of the present invention provides a lung vitality testing device, including:
  • Air pressure P(t) Air pressure
  • a vital capacity acquiring unit configured to obtain a flow velocity v(t) corresponding to each moment according to a corresponding relationship between the airflow velocity v(t) and the pressure difference P(t)-P 0 , and the flow velocity according to the measurement time t and the flow velocity Corresponding relationship of v(t), the tester's vital capacity Vc is obtained.
  • the vital capacity acquisition unit comprises: an airflow flow rate acquisition module, configured to The current flow velocity v(t) is obtained, where ⁇ is the air density.
  • the vital capacity acquiring unit is specifically used according to a formula
  • the test subject's vital capacity Vc is obtained, where s is the cross-sectional area of the pressure port lumen.
  • the vital capacity acquiring unit is specifically used according to a formula
  • the tester's vital capacity Vc is obtained; where Pmax is the maximum barometric pressure value obtained during the measurement time t, and s is the cross-sectional area of the pressure port lumen.
  • the test device for vital capacity is provided in a mobile device, the mobile device comprising a mobile phone, a wearable device.
  • the beneficial effects of the embodiments of the present invention are as follows:
  • the embodiment of the present invention discloses a method and a device for testing vital capacity, which use a pressure sensor to obtain the static pressure of the inner cavity of the test device and obtain the air pressure at each moment of the alignment pressure hole blowing, according to the air flow.
  • the flow rate and the corresponding relationship between the pressure difference of the air pressure and the static pressure at each moment obtain the flow velocity corresponding to each time;
  • the lung capacity of the tester is obtained according to the correspondence between the flow velocity and the measurement time.
  • the technical solution can effectively improve the accuracy of the vital capacity test, and does not cause damage to related components of the mobile device, which is completely different from the method for testing the vital capacity by using a microphone in the prior art.
  • FIG. 1 is a flowchart of a method for testing vital capacity according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a lung vitality testing device according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for testing vital capacity according to an embodiment of the present invention, where the method includes:
  • the mobile device can be a mobile phone, a wearable device, or the like.
  • the inner diameter of the pressure hole inner cavity is generally set to about 3.5 mm, but is not limited thereto, and the cross-sectional area of the inner cavity can be specifically set according to the design structure and application requirements of the mobile device.
  • the pressure hole may be specially configured according to the design structure of the mobile device, or other openings of the mobile device itself, such as a headphone hole, a power hole or other openings connected to the outside.
  • the pressure hole in the embodiment is such that the appearance of the mobile device is simple and beautiful.
  • the air density ⁇ in the present embodiment may be an air density constant of 1.205 kg/m 3 at normal temperature and normal pressure, and the gas density exhaled by the test subject may be obtained by other methods.
  • the tester's vital capacity Vc is obtained by the following method:
  • Vc The test subject's vital capacity Vc is obtained, where s is the cross-sectional area of the pressure port lumen.
  • the method of the preferred embodiment is capable of accurately obtaining the lung capacity of the tester during the measurement time.
  • the tester's vital capacity Vc is obtained by the following method:
  • Vc The tester's vital capacity Vc is obtained, where Pmax is the maximum barometric pressure value obtained during the measurement time t, and s is the cross-sectional area of the pressure port lumen.
  • the method of the preferred embodiment is relatively simple and can quickly obtain the lung capacity of the tester during the measurement time.
  • the appropriate calculation formula can be selected according to the needs to calculate the vital capacity.
  • FIG. 2 is a schematic structural diagram of a lung vitality testing device according to an embodiment of the present invention, the lung vitality testing device includes:
  • the pressure sensor 21 is placed in the pressure hole inner cavity of the test device, the pressure hole is connected to the outside, and is specially set on the test device or designed for the existing opening; for obtaining the air at the time of the alignment pressure hole blowing Air pressure P(t).
  • Vital capacity obtaining unit 22 according to the air flow velocity v (t) and the differential pressure P (t) -P 0 correspondence relation is obtained at each time corresponding to the air velocity v (t), and the measured air velocity v and the time t Corresponding relationship of (t), the tester's vital capacity Vc is obtained.
  • the test device for vital capacity in the embodiment may be disposed in a mobile device including a mobile phone, a wearable device, and the like.
  • the vital capacity acquisition unit 22 comprises:
  • Airflow rate acquisition module for formulating The current flow velocity v(t) is obtained, where ⁇ is the air density.
  • the vital capacity acquisition unit 22 is based on an integral formula The test subject's vital capacity Vc is obtained, where s is the cross-sectional area of the pressure port lumen.
  • the vital capacity acquisition unit 22 is based on a maximum formula The tester's vital capacity Vc is obtained, where Pmax is the maximum barometric pressure value obtained during the measurement time t, and s is the cross-sectional area of the pressure port lumen.
  • the above two preferred schemes obtain the tester's vital capacity by using two different calculation formulas, and the integral formula can obtain more accurate measurement results, and the maximum formula is simple, and the measurement result can be obtained quickly.
  • the appropriate calculation formula can be selected according to the needs to calculate the vital capacity.
  • the embodiment of the present invention discloses a method and a device for testing vital capacity, which obtains the static pressure of the inner cavity of the test device through the pressure sensor and obtains the air pressure at each moment of the alignment pressure hole blowing, according to the air flow rate and each moment. Correspondence between the pressure difference of the air pressure and the static pressure obtains the flow velocity corresponding to each moment; the lung capacity of the tester is obtained according to the correspondence between the flow velocity and the measurement time.
  • the technical solution can effectively improve the accuracy of the vital capacity test, and does not cause damage to related components of the mobile device, which is completely different from the method for testing the vital capacity by using a microphone in the prior art.

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Abstract

一种测试肺活量的方法和设备，其中测试肺活量的方法包括：测得移动设备的压力孔内腔的静压力P 0，该压力孔连通外界，在移动设备上单独设置或为已有设计开口（S100）；对准压力孔吹气，获得各个时刻的气压P(t)（S101）；根据气流流速v(t)和压力差P(t)-P 0的对应关系式，获得对应各个时刻的气流流速v(t)（S102）；根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc（S103）。根据气流流速和测量时间的对应关系获得测试者的肺活量，能够有效的提高肺活量测试的精度，而且不会对测试设备的相关部件造成损坏，完全不同于现有技术中利用麦克风测试肺活量的方案。

Description

一种肺活量的测试方法和设备 技术领域
本发明涉及移动终端技术领域，特别涉及一种肺活量的测试方法和设备。
发明背景
现有手机及可穿戴设备中通常利用麦克风作为肺活量测试的测试传感器，其原理为通过检测气体导致振膜的振动频率计算气流速度。由于麦克风的振膜薄、灵敏度较高，在高频压力下易破碎导致失效，使得计算精度不高、测试结果不可靠。
发明内容
本发明提供了一种肺活量的测试方法和设备，以解决现有技术中麦克风测试肺活量精度差且易于损坏麦克风的问题。
为达到上述目的，本发明的技术方案是这样实现的：
一方面，本发明提供了一种肺活量的测试方法，包括：
测得移动设备的压力孔内腔的静压力P0；所述压力孔连通外界，在移动设备上专门设置或为已有设计开口；
获得对准压力孔吹气各个时刻的气压P(t)；
根据气流流速v(t)和压力差P(t)-P0的对应关系式，获得对应各个时刻的气流流速v(t)。
根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc。
优选地，所述根据气流流速v(t)和压力差P(t)-P0的对应关系式，获得对应各个时刻的气流流速v(t)包括：
根据公式
Figure PCTCN2015082671-appb-000001
获得当前时刻的气流流速v(t)，其中ρ为空气密度。
优选地，所述根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc包括：
根据公式
Figure PCTCN2015082671-appb-000002
获得测试者的肺活量Vc，其中s为压力孔内腔的横截面积。
优选地，所述根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc包括：
根据公式
Figure PCTCN2015082671-appb-000003
获得测试者的肺活量Vc；
其中Pmax为在测量时间t内获得的最大气压值，s为压力孔内腔的横截面积。
优选地，所述移动设备包括手机、可穿戴设备。
另一方面，本发明实施例提供了一种肺活量的测试设备，包括：
压力传感器，置于所述测试设备的压力孔内腔中，所述压力孔连通外界，在所述测试设备上专门设置或为已有设计开口；用于获得对准压力孔吹气各个时刻的气压P(t)；
肺活量获取单元，用于根据气流流速v(t)和压力差P(t)-P0的对应关系式，获得对应各个时刻的气流流速v(t)，以及根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc。
优选地，所述肺活量获取单元包括：气流流速获取模块，用于根据公式
Figure PCTCN2015082671-appb-000004
获得当前时刻的气流流速v(t)，其中ρ为空气密度。
优选地，所述肺活量获取单元具体用于，根据公式
Figure PCTCN2015082671-appb-000005
获得测试者的肺活量Vc，其中s为压力孔内腔的横截面积。
优选地，所述肺活量获取单元具体用于，根据公式
Figure PCTCN2015082671-appb-000006
获得测试者的肺活量Vc；其中Pmax为在测量时间t内获得的最大气压值，s为压力孔内腔的横截面积。
优选地，所述肺活量的测试设备设置在移动设备中，所述移动设备包括手机、可穿戴设备。
本发明实施例的有益效果是：本发明实施例公开了一种肺活量的测试方法和设备，利用压力传感器获得测试设备内腔的静压力和获得对准压力孔吹气各个时刻的气压，根据气流流速和各时刻的气压与静压力的压力差的对应关系获得对应各个时刻的气流流速；根据气流流速与测量时间的对应关系获得测试者的肺活量。本技术方案可以有效的提高肺活量测试的精度，而且不会对移动设备的相关部件造成损坏，完全不同于现有技术中利用麦克风测试肺活量的方法。
附图简要说明
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：
图1为本发明实施例提供的一种肺活量的测试方法的流程图；
图2为本发明实施例提供的一种肺活量的测试设备的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
图1为本发明实施例提供的一种肺活量的测试方法的流程图，所述方法包括：
S100，测得移动设备的压力孔内腔的静压力P0；所述压力孔连通外界，在移动设备上专门设置或为已有设计开口。
其中，移动设备可以为手机、可穿戴设备等。
由于压力孔内腔的横截面积过大会影响气体流速，进一步影响肺活量测试的精度。在实际应用中，压力孔内腔的内径一般设置为3.5mm左右，但不局限于此，其内腔的横截面积可以根据移动设备的设计结构和应用需求具体设置。
需要说明的是，所述压力孔可以配合移动设备的设计结构专门设置，也可以将移动设备本身的其他开口，例如耳机孔、电源孔或其他连接外界的开口作 为本实施例中的压力孔，以使移动设备外观简洁美观。
S101，对准压力孔吹气，获得各个时刻的气压P(t)。
S102，根据气流流速v(t)和压力差P(t)-P0的对应关系式，获得对应各个时刻的气流流速v(t)。
具体的，根据公式
Figure PCTCN2015082671-appb-000007
获得当前时刻的气流流速v(t)，其中ρ为空气密度。
需要说明的是，本实施例中的空气密度ρ可以为常温常压下的空气密度常数1.205kg/m3，也可以通过其他方法获取被测试者呼出的气体密度。
S103，根据测量时间t与气流流速v(t)的对应关系，获得测试者的肺活量Vc。
在一优选实施例中，通过下述方法获得测试者的肺活量Vc：
根据积分公式
Figure PCTCN2015082671-appb-000008
获得测试者的肺活量Vc，其中s为压力孔内腔的横截面积。
本优选实施例的方法能够准确的获得测试者在测量时间内的肺活量。
在另一优选实施例中，通过下述方法获得测试者的肺活量Vc：
根据最大值公式
Figure PCTCN2015082671-appb-000009
获得测试者的肺活量Vc，其中Pmax为在测量时间t内获得的最大气压值，s为压力孔内腔的横截面积。
本优选实施例的方法相对简单，能够快速的获得测试者在测量时间内的肺活量。在实际应用中，可以根据需要选择合适的计算公式来计算肺活量。
图2为本发明实施例提供的一种肺活量的测试设备的结构示意图，该肺活量的测试设备包括：
压力传感器21，置于测试设备的压力孔内腔中，所述压力孔连通外界，在测试设备上专门设置或为已有设计开口；用于在对准压力孔吹气时，获得各个时刻的气压P(t)。
肺活量获取单元22，用于根据气流流速v(t)和压力差P(t)-P0的对应关系式， 获得对应各个时刻的气流流速v(t)，以及根据测量时间t与气流流速v(t)的对应关系，获得测试者的肺活量Vc。
其中，本实施例中的肺活量的测试设备可以设置在包括手机、可穿戴设备等移动设备中。
优选地，肺活量获取单元22包括：
气流流速获取模块，用于根据公式
Figure PCTCN2015082671-appb-000010
获得当前时刻的气流流速v(t)，其中ρ为空气密度。
在一优选实施例中，肺活量获取单元22根据积分公式
Figure PCTCN2015082671-appb-000011
获得测试者的肺活量Vc，其中s为压力孔内腔的横截面积。
在另一优选实施例中，肺活量获取单元22根据最大值公式
Figure PCTCN2015082671-appb-000012
获得测试者的肺活量Vc，其中Pmax为在测量时间t内获得的最大气压值，s为压力孔内腔的横截面积。
上述的两个优选方案通过使用两种不同的计算公式获得测试者的肺活量，积分公式能够获得较准确的测量结果，而最大值公式简单，能够快速的获得测量结果。在实际应用中，可以根据需要选择合适的计算公式来计算肺活量。
综上所述，本发明实施例公开了一种肺活量的测试方法和设备，通过压力传感器获得测试设备内腔的静压力和获得对准压力孔吹气各个时刻的气压，根据气流流速和各时刻的气压与静压力的压力差的对应关系获得对应各个时刻的气流流速；根据气流流速与测量时间的对应关系获得测试者的肺活量。本技术方案可以有效的提高肺活量测试的精度，而且不会对移动设备的相关部件造成损坏，完全不同于现有技术中利用麦克风测试肺活量的方法。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等，均包含在本发明的保护范围内。

Claims (10)

  1. 一种肺活量的测试方法，其特征在于，包括：
    测得移动设备的压力孔内腔的静压力P0；所述压力孔连通外界，在移动设备上专门设置或为已有设计开口；
    获得对准压力孔吹气各个时刻的气压P(t)；
    根据气流流速v(t)和压力差P(t)-P0的对应关系式，获得对应各个时刻的气流流速v(t)；
    根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc。
  2. 根据权利要求1所述的肺活量的测试方法，其特征在于，所述根据气流流速v(t)和压力差P(t)-P0的对应关系式，获得对应各个时刻的气流流速v(t)包括：
    根据公式获得当前时刻的气流流速v(t)，其中ρ为空气密度。
  3. 根据权利要求1所述的肺活量的测试方法，其特征在于，所述根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc包括：
    根据公式
    Figure PCTCN2015082671-appb-100002
    获得测试者的肺活量Vc，其中s为压力孔内腔的横截面积。
  4. 根据权利要求1所述的肺活量的测试方法，其特征在于，所述根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc包括：
    根据公式
    Figure PCTCN2015082671-appb-100003
    获得测试者的肺活量Vc；
    其中Pmax为在测量时间t内获得的最大气压值，s为压力孔内腔的横截面积。
  5. 根据权利要求1所述的肺活量的测试方法，其特征在于，所述移动设备包括手机、可穿戴设备。
  6. 一种肺活量的测试设备，其特征在于，包括：
    压力传感器，置于所述测试设备的压力孔内腔中，所述压力孔连通外界， 在所述测试设备上专门设置或为已有设计开口；用于获得对准压力孔吹气各个时刻的气压P(t)；
    肺活量获取单元，用于根据气流流速v(t)和压力差P(t)-P0的对应关系式，获得对应各个时刻的气流流速v(t)，以及根据测量时间t与所述气流流速v(t)的对应关系，获得测试者的肺活量Vc。
  7. 根据权利要求6所述的肺活量的测试设备，其特征在于，所述肺活量获取单元包括：
    气流流速获取模块，用于根据公式
    Figure PCTCN2015082671-appb-100004
    获得当前时刻的气流速度v(t)，其中ρ为空气密度。
  8. 根据权利要求6所述的肺活量的测试设备，其特征在于，所述肺活量获取单元具体用于，
    根据公式
    Figure PCTCN2015082671-appb-100005
    获得测试者的肺活量Vc，其中s为压力孔内腔的横截面积。
  9. 根据权利要求6所述的肺活量的测试设备，其特征在于，所述肺活量获取单元具体用于，
    根据公式
    Figure PCTCN2015082671-appb-100006
    获得测试者的肺活量Vc；
    其中Pmax为在测量时间t内获得的最大气压值，s为压力孔内腔的横截面积。
  10. 根据权利要求6所述的肺活量的测试设备，其特征在于，所述肺活量的测试设备设置在移动设备中，所述移动设备包括手机、可穿戴设备。
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