WO2016024724A1

WO2016024724A1 - Device for measuring respiration and method for measuring respiration using same

Info

Publication number: WO2016024724A1
Application number: PCT/KR2015/007192
Authority: WO
Inventors: 신희원; 이화선; 김영호
Original assignee: 연세대학교 원주산학협력단
Priority date: 2014-08-12
Filing date: 2015-07-10
Publication date: 2016-02-18
Also published as: KR20160019822A; KR101654914B1

Abstract

A device for measuring respiration may comprise: pads which are attachable to the body of a user; three or more sensors which are installed on the pads and measure signals generated by movements of the body of the user caused by the respiration of the user; and a determination unit which measures the respiration rate of the user using signals measured by at least two sensors of the three or more sensors.

Description

Breathing apparatus and method for measuring breathing using the same

The present application relates to a respiration measurement device and a respiration measurement method using the same.

Bio-signals such as respiratory rate are one of the most convenient factors for diagnosing the health and abnormality of the human body. Biosignal meters (eg, respirators) are constantly attached to vital signs, mainly for critical patients, emergency patients, patients during surgery, or elderly people who are vulnerable to maintaining health.

For example, by attaching an oxygen mask to a patient under surgery, the patient's breathing condition is constantly checked during the operation. The oxygen mask may cause fear to the patient, and a large number of connecting lines connecting the oxygen mask and the respiratory monitoring device may be used. Due to the restrictions on the movement of people, such as doctors, there was an uncomfortable point difficult to parallel with other procedures or surgery.

In addition, it is often necessary to check the breathing conditions of not only patients who are hospitalized or operated in the hospital but also those who live outside the hospital. For example, it is necessary to measure breathing patterns during sleep or sleep patterns of the elderly or parents who are unstable in breathing patterns or parents who live in different places. In particular, in recent years, the sleep apnea, which is a disease that temporarily does not breathe during sleep, needs to be used to diagnose a person's health by measuring the actual respiratory rate or respiratory rate.

However, in the related art, it is difficult to accurately obtain the data by accurately measuring the respiratory rate and the respiratory volume of the user without the respiratory measuring equipment as provided in the hospital, and to accurately transfer the acquired data to a doctor in the hospital. In particular, the conventional method of measuring respiratory rate using a primary sensor obtained from the sensor by attaching a simple sensor or the like to the body is far shorter than the method of measuring respiratory rate through hospital equipment. . The background technology of the present application is disclosed in Korean Patent Laid-Open Publication No. 2006-0005092 (published Jan. 17, 2006).

In order to solve the above-mentioned problems of the prior art, the present application is to provide a respiratory measurement device and a respiration measurement method that can more easily and accurately measure the respiratory rate of the user.

In addition, the present application is to provide a respiration measurement device and respiration measurement method that can remotely check the user's health status in real time by transmitting the respiratory data of the user in the daily life outside the hospital to a system such as a hospital.

In addition, the present application provides a respiratory measurement device and a respiratory measurement method that can monitor the respiratory state of the patient in real time while measuring the respiratory rate of the user without attaching equipment such as an oxygen mask to the user in parallel with surgery and various treatments I would like to.

However, the technical problem to be achieved by the present embodiment is not limited to the technical problems as described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, a respiration measurement apparatus according to an embodiment of the present application is a pad, which is attached to the body of the user, is installed on the pad, the movement of the user's body by the user's breathing Three or more sensors for measuring the signal generated according to, and using the signal measured by at least two or more of the three or more sensors, may include a determination unit for measuring the respiratory rate of the user.

According to an embodiment of the present embodiment, the sensor includes a first sensor and a second sensor, and the determination unit compares the first signal measured by the first sensor and the second signal measured by the second sensor. The number of times the peak value of the first signal and the second signal appear at the same time may be counted as the respiratory rate.

According to an example of this embodiment, the respiration measurement apparatus further includes a conversion unit for converting the first signal and the second signal in the frequency domain, the determination unit frequency of the first signal and the frequency of the second signal Is equal to, and when the frequency of the first signal and the frequency of the second signal coincide, the number of times the peak value of the first signal and the second signal appear at the same time is determined as the respiration rate. Can count.

According to an example of this embodiment, the sensor includes a third sensor, the determination unit compares the first signal and the third signal measured by the third sensor, and at the same time and the first signal The number of times the peak value of the third signal is displayed is counted, and the determination unit determines the number of times the peak value of the first signal and the second signal appear and the peak value of the first signal and the third signal at the same time. The smaller number of times that appear may be counted as the respiratory rate.

According to an embodiment of the present embodiment, the sensor includes a first sensor and a second sensor, and the determination unit compares the first signal measured by the first sensor and the second signal measured by the second sensor. The number of cases where the difference between the peak value of the first signal equal to or greater than the threshold and the peak value of the second signal equal to or greater than the threshold of the second signal is smaller than the preset value may be counted and counted as the respiratory rate.

According to an example of this embodiment, the respiration measurement apparatus further includes a conversion unit for converting the first signal and the second signal in the frequency domain, the determination unit frequency of the first signal and the frequency of the second signal Is equal to, and when the frequency of the first signal and the frequency of the second signal coincide, the peak value equal to or greater than the threshold of the first signal and the peak value equal to or greater than the threshold of the second signal at the same time. The number of cases where the difference in value is smaller than the preset value may be counted as the respiratory rate.

According to an example of the present embodiment, the sensor includes a first sensor, a second sensor, and a third sensor, and the determination unit includes a first signal measured by the first sensor and a first measured by the second sensor. Comparing the second signal and the third signal measured by the third sensor, and counting the number of times the peak value of the first signal, the second signal and the third signal appear at the same time to count the respiratory rate Can be.

According to an embodiment of the present embodiment, the sensor includes a first sensor and a second sensor, and the determination unit compares the first signal measured by the first sensor and the second signal measured by the second sensor. The determination unit may count the number of times the peak value of the first signal and the second signal appear within a preset time difference and count the number of breaths.

According to an example of this embodiment, the three or more sensors may include a piezoelectric sensor.

According to an example of this embodiment, the three or more sensors may be manufactured by the MEMS (Micro Electro Mechanical Systems) technique.

According to an example of this embodiment, the three or more sensors may include an acceleration sensor.

According to an example of this embodiment, the respiration measurement device further comprises a memory for storing data relating to the relationship between the signal measured by the three or more sensors and the actual respiratory rate of the user, wherein the determination unit the three The respiratory rate of the user may be measured based on signals measured by at least two sensors among the above sensors and data stored in the memory.

According to an example of this embodiment, the respiration measurement device may further include an amplifier for amplifying the magnitude of the signal measured by the three or more sensors.

According to an example of this embodiment, the respiration measurement device may further include an output unit for outputting the signal measured by the three or more sensors and the measured respiratory rate.

According to an example of this embodiment, the respiration measurement device may further include a transmission unit for transmitting a signal measured by the three or more sensors and the measured respiratory rate to an external monitoring device in conjunction with the respiration measurement device.

According to an example of this embodiment, the respiration measurement device further includes a voice signal measuring unit for measuring a voice signal generated when the user's breathing, the determination unit is measured by at least two or more of the three or more sensors The respiratory rate of the user may be measured based on the received signal and the voice signal.

Respiration measurement method according to another embodiment of the present invention is a step of measuring a signal generated in accordance with the movement of the user's body by the user's breathing with three or more sensors installed on a pad attachable to the user's body, the 3 Comparing the first signal measured by the first sensor and the second signal measured by the second sensor of the at least one sensor, and at the same time the peak value of the first signal and the second signal It may include the step of counting the number of times per unit time shown by the respiratory rate.

The above-mentioned means for solving the problems are merely exemplary, and should not be construed to limit the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and detailed description of the invention.

According to any one of the above problem solving means of the present application, the user is installed on a pad attachable to the user's body, and acquires a signal from a plurality of sensors for generating a signal according to the change of the user's body by the user's breathing By measuring the respiratory rate, the user's respiratory rate can be measured in real time without limiting the user's activity, without causing discomfort to the user, and in parallel with other operations or procedures.

According to any one of the above problem solving means of the present application, by measuring the respiratory rate of the user in consideration of a plurality of signals generated from the plurality of sensors at the same time, it is possible to accurately measure the respiratory rate of the user.

1 is a view showing a breathing apparatus according to an embodiment of the present application.

2 is a block diagram of a breathing apparatus according to an embodiment of the present application.

3 is a diagram illustrating an example of a signal obtained from a sensor of a breathing apparatus according to an embodiment of the present application.

4 is a view showing another example of a signal obtained from a sensor of a breathing apparatus according to an embodiment of the present application.

5 is a diagram illustrating another example of a signal obtained from a sensor of a respiration measuring device according to an embodiment of the present disclosure.

6 is a diagram illustrating another example of a signal obtained from a sensor of a respiration measuring device according to an embodiment of the present disclosure.

7 is a diagram illustrating an example of a signal obtained from a sensor and a voice signal measuring unit of a breathing apparatus according to an embodiment of the present application.

8 is a flowchart illustrating a respiratory measurement method according to an embodiment of the present application.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present disclosure. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.

Throughout this specification, when a portion is "connected" to another portion, this includes not only "directly connected" but also "electrically connected" with another element in between. do.

Throughout this specification, when a member is located “on” another member, this includes not only when one member is in contact with another member but also when another member exists between the two members.

Throughout this specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding the other components unless specifically stated otherwise.

As used throughout this specification, the terms "about", "substantially" and the like are used at, or in the sense of, numerical values when a manufacturing and material tolerance inherent in the stated meanings is indicated, Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers. As used throughout this specification, the term "step to" or "step of" does not mean "step for."

1 is a view showing a breathing apparatus according to an embodiment of the present application. As shown in FIG. 1, a respiration measurement apparatus according to an exemplary embodiment of the present disclosure is installed in a plurality of pads 10 and the pads 10 which are attachable to a body of a user 100, and installed on the body of the user 100. The first sensor 12, the second sensor 14, the third sensor 16, and the voice signal measuring unit 18 may be included. In addition, the respiratory measurement device may include a plurality of bands 20 connecting the plurality of pads (10). The band 20 may be made of an elastic material, and its deformation, such as stretching and contraction, is free.

The plurality of pads 10 may be attached to different positions of the body of the user 100, respectively. For example, as shown in Figure 1, when the user 100 breathing in the position of the user 100, which is a position that can be easily captured body movements of the user 100, rib portion, abdomen The pad 10 can be installed. At this time, it is advantageous for accurate respiration measurement not to install a pad on the left chest portion of the user 100, which can cause body movement due to heartbeat. This is because when the sensor is operated by the movement of the body due to the heartbeat and the signal is measured, it may be difficult to distinguish the signal from the movement of the body due to the breathing. In addition, for example, as shown in FIG. 1, the pad 10 in which the voice signal measuring unit 18 is installed may be installed at the neck part of the user to measure the voice signal generated from the user's body during breathing. Can be.

However, the installation position of the pad 10 shown in FIG. 1 is merely exemplary, and the pad 10 may be installed at another body part of the user 100 to improve the accuracy of the respiration measurement. In addition, in FIG. 1, three pads 10, three sensors 1, a first sensor 12, a second sensor 14, and a third sensor 16 are illustrated as being installed in the body of the user 100. The number of pads 10 and sensors is not limited thereto, and three or more sensors may be installed, for example, five sensors.

The first sensor 12, the second sensor 14, and the third sensor 16 generate a signal according to the movement of the user's body by the user's breathing and measure the generated signal. can do. For example, the first sensor 12, the second sensor 14, and the third sensor 16 may include a piezoelectric sensor. The piezoelectric sensor is a piezoelectric element that uses a piezoelectric element that causes an electrical reaction by varying the magnitude of the voltage according to the pressure applied when a predetermined pressure is applied to the piezoelectric sensor. The pressure is applied to the sensor, and the device converts and outputs a respiratory signal into an electrical signal. As another example, the first sensor 12, the second sensor 14, and the third sensor 16 may include an acceleration sensor. The acceleration sensor is a device capable of measuring the direction and the acceleration in the direction according to the change by a predetermined pressure or external force, in this embodiment by measuring the acceleration of the change of the body in one direction by the user's breathing 100 An output device can be used. The first sensor 12, the second sensor 14, and the third sensor 16 may be manufactured in a compact form using a MEMS (Micro Electro Mechanical Systems) technique. Therefore, it is possible to reduce the weight of the respiratory measurement device, and by attaching to the body of the user 100 can minimize the foreign object that can be given to the user (100).

In addition, the voice signal measuring unit 18 may convert and measure the sound generated by the inhalation and exhalation of the breathing of the user 100 to a voice signal. For example, while the user 100 continues to breathe normally, a breathing sound signal having a substantially constant amplitude may be repeated at a constant cycle. For example, the voice signal measuring unit 18 may include a microphone.

In addition, the breath measuring apparatus of the present application is a signal measured by at least two or more of the three or more sensors (eg, the first sensor 12, the second sensor 14 and the third sensor 16). The respiratory rate of the user 100 may be measured using. For example, according to one embodiment of the present application, the respiration measurement device is the waveform of the first signal measured by the first sensor 12 and the waveform of the second signal measured by the second sensor 14 Compare The respiratory measuring device counts the number of times the peak value of the waveform of the first signal and the waveform of the second signal appear at the same time, and counts the counted number of times by the user 100. You can count by number. At this time, the respiration measurement device counts the number of times the peak value of the waveform of the waveform of the first signal and the waveform of the second signal is recorded at the same time (for example, 1 minute) for a predetermined time per minute of the user 100 Can be measured by respiratory rate. The magnitude of the peak value of the waveform of the first signal and the waveform of the second signal may not be the same depending on the position, the performance of the sensor, and the like.

In addition, the breathing apparatus of the present invention, in order to improve the accuracy of the respiratory rate measurement, the waveform of the first signal measured by the first sensor 12 and the second signal measured by the second sensor 14 The waveform and the waveform of the third signal measured by the third sensor 16 are compared. The respiratory measuring device counts the number of times the peak value of the waveform of the first signal, the waveform of the second signal, and the waveform of the third signal appears at the same time, and counts the counted number of times by the user ( Can be counted as the respiratory rate of 100).

In addition, according to another embodiment of the present application, the respiration measurement device converts the signals measured by the three or more sensors into the frequency domain, and determines whether the frequencies of the waveforms measured by the three or more sensors match. Can be. For example, when the frequency of the waveform of the first signal measured by the first sensor 12 and the waveform of the second signal measured by the second sensor 14 coincide, the respiration measuring device may be At the same time, the number of times the peak value of the waveform of the waveform of the first signal and the waveform of the second signal appear may be counted by the respiratory rate of the user 100. The signal generated by the movement of the body by the user's breathing and the signal generated by the movement or external force other than the breathing may have different frequencies. Therefore, by converting the signal measured in each sensor into the frequency domain, and comparing the frequency of the signal, each signal is used as the data of the respiratory rate judgment only when the frequency is the same, and when the frequency is different, the corresponding signal is determined by the respiratory rate By not using this data, the accuracy of respiratory rate measurement can be improved.

In addition, according to another embodiment of the present application, the respiration measurement device is a waveform of the first signal measured by the first sensor 12 and the waveform of the second signal measured by the second sensor 14 Compare. As a result of the comparison, the respiration measurement device counts the number of times the peak value of the waveform of the waveform of the first signal and the waveform of the second signal appears at the same time. In addition, the respiration measurement device compares the waveform of the first signal measured by the first sensor 12 with the waveform of the third signal measured by the third sensor 16. As a result of the comparison, the respiration measurement device counts the number of times the peak value of the waveform of the waveform of the first signal and the waveform of the third signal appears at the same time. In addition, the respiratory measuring device is the number of times that the peak value of the waveform of the waveform of the first signal and the waveform of the second signal at the same time counted and the waveform of the first signal and the third signal at the same time counted By counting the smaller number of times the peak value of the waveform of the user to the respiratory rate of the user 100, it is possible to improve the accuracy of the respiratory rate measurement. As another example, the respiration measuring device may be configured to generate the waveform of the waveform of the second signal and the waveform of the third signal at the same time as the number of peaks of the waveform of the waveform of the first signal and the waveform of the third signal. By comparing the number of times the peak value appears can be measured as a small number of the user 100 breathing rate. As another example, the respiration measuring apparatus may include the waveform of the waveform of the second signal and the waveform of the third signal at the same time as the number of times the peak value of the waveform of the waveform of the first signal and the waveform of the second signal appears. At the same time that the peak value appears, the smallest number of times the peak value of the waveform of the first signal and the waveform of the third signal may appear may be measured as the respiration rate of the user 100.

In addition, according to another embodiment of the present application, for example, the respiration measurement device is a first signal measured by the first sensor 12 and the second signal measured by the second sensor 14 Compare. When the respiration measurement device, as a result of the comparison, the difference between the peak value greater than or equal to a preset threshold among the waveforms of the first signal recorded at the same time and the peak value greater than or equal to the threshold among the waveforms of the second signal is smaller than a preset value. The number of times may be counted as the number of breaths of the user 100. The preset value may be set in consideration of the attachment position of each sensor. Since the first sensor 12 and the second sensor 14 are different in their attachment positions, and the degree of change or movement is different depending on the part of the body when the user 100 breathes, the first signal The time point at which the peak value is recorded in the waveform of the waveform and the second signal may be the same, but the magnitude of the peak value of the waveform of the first signal and the magnitude of the peak value of the waveform of the second signal may be different. . Therefore, when the peak value is recorded at the same time in the waveform of the first signal and the waveform of the second signal, and the difference in the magnitude of the peak value of each signal is smaller than the preset value, the part of the body where each sensor is attached Recognizing the difference according to, and the breathing apparatus can measure the number of times the peak value of the first signal and the peak value of the second signal at the same time by the respiratory rate of the user (100). If the peak value is recorded at the same time in the waveform of the first signal and the waveform of the second signal, but the difference in the magnitude of the peak value of each signal is larger than the preset value, the movement or external force other than breathing It is regarded as a signal generation due to the change of the body and is not used as a data for respiratory rate judgment. In addition, the peak value having a size less than or equal to the threshold value is too small to determine the respiratory rate. The threshold may be set to, for example, 60% of the peak value of the normal respiratory waveform in consideration of the waveform that may be measured during normal respiration, but is not limited thereto. As such, by considering not only the timing at which the peak values are generated in the plurality of sensors but also the difference in size, the accuracy of the respiratory rate determination of the user 100 may be improved.

Further, in another embodiment of the present disclosure, the respiration measurement device may convert the signal measured by the three or more sensors into the frequency domain. Also, for example, the respiration measuring device may determine whether the frequency of the first signal and the frequency of the second signal match. As a result of the determination, when the frequency of the first signal and the frequency of the second signal coincide with each other, the respiration measurement device has a peak value equal to or greater than the threshold value of the first signal and the threshold value of the second signal at the same time. The number of cases where the difference between the peak values is smaller than the preset value may be counted as the respiratory rate of the user 100. In this way, by considering the frequency of each waveform as well as the timing of occurrence of peak values in the plurality of sensors and the difference between the magnitudes of the peak values, it is determined whether the signal is generated by the user's breathing or other signals generated by movement or external force. Can be judged separately.

In addition, in another embodiment of the present application, the respiration measurement device may compare the first signal measured by the first sensor 12 and the second signal measured by the second sensor 14. In addition, the respiratory measurement device may count the number of times the peak value of the first signal and the second signal appear within a time difference of a predetermined range to measure the number of breaths of the user 100. For example, since the first sensor 12 and the second sensor 14 are different in the attachment position, and the degree of change or movement is different according to the part of the body when the user 100 breathes, There may be a slight time difference between the waveform of the first signal and the waveform of the second signal when the peak value is recorded. Therefore, in consideration of the time difference, it is possible to count the number of times the peak value of the first signal and the second signal appear within a preset time difference, and count the number of breaths of the user 100. The time difference within the preset range may be set to, for example, about 0.1 seconds in consideration of the performance of the sensor, but is not limited thereto.

In addition, according to one embodiment of the present application, the respiration measurement device may store the respiration data about the relationship between the signal measured by the three or more sensors and the actual respiratory rate or volume of the user 100 or the general person. For example, the respiratory data may include actual respiratory rate or respiratory volume of a large number of people measured by the actual respiratory apparatus using a real breathing apparatus (eg, a spyometer spirometer) and the breathing apparatus of the present application simultaneously. The data may be recorded in advance by matching the waveforms or the respiratory rate measured using the respiratory measurement device of the present application. In another example, the respiration data is measured by using the actual breathing apparatus and the breathing apparatus of the present invention at the same time, the actual breathing rate or respiratory rate and the individual measured by the breathing apparatus of the present Personal breathing data may be recorded in advance by matching waveforms or respiratory rate.

In addition, the respiratory measurement device may measure the respiratory rate of the user 100 based on the signal and the respiration data measured by at least two or more of the three or

more sensors

12, 14, 16. For example, the respiratory measuring device stores the respiratory data stored in advance using data such as the magnitude of the waveform, the number of peak values, the frequency, and the like measured by the first sensor 12 and the second sensor 14. The respiratory rate or respiratory volume matched may be searched for and determined.

In addition, according to one embodiment of the present application, the respiratory measurement device is a voice signal measured by the voice signal measuring unit 18 and a signal measured by at least two or more of the three or

more sensors

12, 14, 16 In consideration of this, the respiratory rate of the user 100 may be measured. For example, the respiratory measuring device counts the number of times the peak value of the signal waveform of the first sensor 12 and the peak value of the signal waveform of the second sensor 14 and the peak value of the voice signal are simultaneously recorded. It can be measured by the respiratory rate of the user 100.

In addition, the respiration measurement device of the present application may transmit the signal and the measured respiratory rate measured by the three or

more sensors

12, 14, 16 to the external monitoring device 22 in conjunction with the respiration measurement device. For example, the respiration measurement device may be connected to the external monitoring device 22 by wire or transmit data to the external monitoring device 22 using wireless communication.

As such, the respiration measurement apparatus of the present application considers a plurality of signals acquired from two or more sensors simultaneously, instead of using only signals obtained from a single sensor, and compares the magnitude, frequency, and time difference between the corresponding signals. By determining the user's breathing rate using the back, the accuracy is very high.

* Until now, it will be described that the respiratory measuring device measures the respiratory rate of the user 100 using the first signal measured by the first sensor 12 and the second signal measured by the second sensor 14. However, the present invention is not limited thereto, and in order to improve the accuracy of the respiratory rate measurement, a plurality of combined data of the plurality of sensors (eg, the first sensor 12, the second sensor 14, and the second sensor 14). ) And the third sensor 16, the first sensor 12, and the third sensor 16 may be selectively used according to the performance of each sensor or the attachment position of the sensor.

In addition, the respiration rate of the user 100 in the same manner as in the above-described embodiment, based on not only an electrical signal measured by the piezoelectric sensor but also a change pattern and magnitude value of acceleration having a certain periodicity measured from each acceleration sensor. Can be measured.

2 is a block diagram of a breathing apparatus 200 according to an embodiment of the present application. Referring to FIG. 2, the breathing apparatus 200 may include a pad (not shown), a first sensor 202, a second sensor 204, a third sensor 206, a voice signal measuring unit 208, and a memory ( 210, a converter 212, an amplifier 214, a determiner 216, an output unit 218, and a transmitter 220 may be included. However, the breathing apparatus 200 shown in FIG. 2 is only one embodiment of the present disclosure, and may be modified in various forms based on the components shown in FIG. 2 in the technical field to which the embodiments of the present disclosure belong. Anyone with ordinary knowledge can understand. For example, components and functionality provided within those components may be combined into a smaller number of components or further separated into additional components.

The first sensor 202, the second sensor 204, and the third sensor 206 may be installed on a pad (not shown), and may generate and measure a signal according to the movement of the user's body by the user's breathing. . For example, the first sensor 202, the second sensor 204, and the third sensor 206 may include a piezoelectric sensor or an acceleration sensor manufactured by the MEMS technique.

The voice signal measuring unit 208 may convert the sound generated by the inhalation and exhalation of the user's breath into a voice signal and measure it. For example, the voice signal measuring unit 208 may include a microphone.

The memory 210 may store respiration data about a relationship between a signal measured by the first sensor 202, the second sensor 204, and the third sensor 206 and the actual respiration rate of the user. For example, the respiratory data using the actual breathing apparatus and the breathing apparatus 200 at the same time using the actual breathing apparatus and the breathing apparatus 200 of the general number of people measured through the actual breathing apparatus It may be a general number of average respiration data recorded in advance by matching the measured waveforms (including information such as magnitude value and frequency) or the respiratory rate. In another example, the respiration data is measured by using the individual breathing apparatus and the respiratory measurement device 200 for each individual measured through the actual respiratory measurement device using the real breathing apparatus and the breathing apparatus 200 at the same time. Personal breathing data may be recorded in advance by matching the individual waveforms or the number of breaths.

The converter 212 may convert the signals measured by the first sensor 202, the second sensor 204, and the third sensor 206 into a frequency domain, and detect the frequency of the waveform measured by each sensor. have. The converter 212 may convert the time domain signal measured by each sensor into the frequency domain by using a conventional general algorithm for converting a signal in the time domain to the frequency domain.

The amplifier 214 may amplify the magnitude of the signal measured by the first sensor 202, the second sensor 204, and the third sensor 206 and the voice signal measured by the voice signal measuring unit 208. have. Since the signals and the audio signals measured by the first sensor 202, the second sensor 204 and the third sensor 206 are fine, it is necessary to amplify the magnitude of the respiratory rate. Since the amplifier 214 has a structure including a general signal amplifier circuit, detailed description thereof will be omitted.

The determination unit 216 may measure the respiratory rate of the user using signals measured by at least two or more sensors among the first sensor 202, the second sensor 204, and the third sensor 206. According to one embodiment of the present application, the determination unit 216 compares the waveform of the first signal measured by the first sensor 202 and the waveform of the second signal measured by the second sensor 204. As a result of the comparison, the number of times the peak value of the waveform of the first signal and the waveform of the second signal appear simultaneously may be counted, and the counted number may be counted as the user's breathing rate.

In addition, according to another embodiment of the present application, the determination unit 216 is the waveform of the first signal measured by the first sensor 202 and the waveform of the second signal measured by the second sensor 204 And waveforms of the third signal measured by the third sensor 206. As a result of the comparison, the determination unit 216 counts the number of times the peak value of the waveform of the first signal, the waveform of the second signal, and the waveform of the third signal appear at the same time, and counts the counted times of the user. You can count by breathing rate.

In addition, according to another exemplary embodiment of the present application, the determination unit 216 may determine whether the frequencies of the first signal, the second signal, and the third signal converted into the frequency domain by the conversion unit 212 are equal to each other. Can be. For example, when the frequency of the waveform of the first signal and the waveform of the second signal coincide, the determination unit 216 may display the peak value of the waveform of the waveform of the first signal and the waveform of the second signal simultaneously. By counting the number of times can be counted by the user's breathing rate.

In addition, according to another embodiment of the present application, the determination unit 216 counts the number of times the peak value of the waveform of the waveform of the first signal and the waveform of the second signal at the same time. In addition, the determination unit 216 compares the waveform of the first signal and the waveform of the third signal measured by the third sensor 206, and the peak of the waveform of the first signal and the waveform of the third signal. Count the number of times the value appears at the same time. In addition, the determination unit 216 may determine the number of times the peak value of the waveform of the first signal and the waveform of the second signal appear at the same time as the count and the waveform of the first signal and the third at the same time. The smaller number of times the peak value of the waveform of the signal appears can be counted as the user's breathing rate.

In addition, according to another embodiment of the present application, the determination unit 216 is a difference between the peak value of the predetermined threshold value or more of the waveform of the first signal recorded at the same time and the peak value or more of the threshold value of the waveform of the second signal. Can be counted as the user's breathing rate by counting the number of cases less than the preset value.

In addition, according to another exemplary embodiment of the present application, the determination unit 216 may determine whether the frequencies of the first signal and the second signal converted into the frequency domain by the conversion unit 212 match. As a result of the determination, when the frequency of the first signal and the frequency of the second signal coincide, the determination unit 216 determines that the peak value or more than the threshold value of the first signal and the threshold value of the second signal at the same time. The number of cases where the difference between the above peak values is smaller than the preset value can be counted as the user's breathing rate.

In addition, according to another exemplary embodiment of the present application, the determination unit 216 may count the number of times the peak value of the first signal and the second signal appear within a preset time difference and measure the number of breaths by the user. .

In addition, according to another embodiment of the present application, the determination unit 216 and the signal measured by at least two or more of the first sensor 202, the second sensor 204 and the third sensor 206 and the The respiratory rate of the user may be measured based on the respiration data stored in the memory 210. For example, the determination unit 216 may store the breath stored in advance using data such as the magnitude of the waveform, the number of peak values, the frequency, and the like measured by the first sensor 202 and the second sensor 204. The respiratory rate matched in the data can be retrieved and determined.

In addition, according to another embodiment of the present application, the determination unit 216 is a voice signal measured by the voice signal measuring unit 208 and the first sensor 202, the second sensor 204 and the third sensor ( The user's respiratory rate may be measured by simultaneously considering signals measured by at least two or more sensors. For example, the determination unit 216 determines the number of times the peak value of the signal waveform of the first sensor 202 and the peak value of the signal waveform of the second sensor 204 and the peak value of the audio signal are simultaneously recorded. It can be counted and measured by the user's breathing rate.

The output unit 218 may output a signal measured by the first sensor 202, the second sensor 204, and the third sensor 206 and the respiratory rate measured by the determination unit 216. The output unit 218 may output data regarding the signal and the respiratory rate using voice, an image, and the like. For example, the output unit 218 may be formed of a general display device such as a touch screen, a liquid crystal display (LCD), and a light emitting diode (LED).

The transmitter 220 measures the signal measured by the first sensor 202, the second sensor 204, and the third sensor 206 and the respiratory rate measured by the determination unit 216. ) To an external monitoring device that works with For example, the transmitter 220 may transmit data regarding the signal and the respiratory rate to an external monitoring device using wired or wireless communication. Examples of wireless communication include Wi-Fi, Internet (Internet), Local Area Network (LAN), Wireless Local Area Network (WLAN), Wide Area Network (WAN), Personal Area Network (PAN), 3G, 4G, LTE may be included, but is not limited thereto.

3 is a diagram illustrating an example of a signal obtained from a sensor of a breathing apparatus according to an embodiment of the present application. For example, the respiration measuring apparatus compares the waveform of the first signal S1 measured by the first sensor with the waveform of the second signal S2 measured by the second sensor. For example, the waveform of the first signal S1 and the waveform of the second signal S2 may have a wave form having a periodicity according to respiration, but is not limited thereto. When the user inhales, the upward peak value is recorded in the waveform of the first signal S1 and the waveform of the second signal S2, and when the user breathes in, the waveform and the first signal of the first signal S1 are recorded. Downward peak values may be recorded in the waveform of the two signals S2.

In addition, as a result of comparing the waveforms, the respiration measuring device counts the number of times the peak value of the waveform of the waveform of the first signal (S1) and the waveform of the second signal (S2) at the same time, and counts the number of times You can count by breathing rate. For example, as shown in FIG. 3, the peak value of the first signal S1 and the second signal S2 was simultaneously recorded at four timings of T1, T2, T3, and T4. Therefore, the respiratory measuring device may measure the respiratory rate of the user four times.

4 is a view showing another example of a signal obtained from a sensor of a breathing apparatus according to an embodiment of the present application. For example, the respiration measurement apparatus may include a waveform of the first signal S1 measured by the first sensor, a waveform of the second signal S2 measured by the second sensor, and a third signal measured by the third sensor. The waveforms of S3 can be compared. As a result of the comparison, the respiratory measuring device counts the number of times the peak value of the waveform of the first signal S1, the waveform of the second signal S2 and the waveform of the third signal S3 appears at the same time. The counted number of times may be counted as a user's respiratory rate. For example, as shown in FIG. 4, the first signal S1, the second signal S2, and the third signal S3 simultaneously record peak values at four timings of T1, T2, T3, and T4. It became. Therefore, the respiratory measuring device may measure the respiratory rate of the user four times.

5 is a diagram illustrating another example of a signal obtained from a sensor of a respiration measuring device according to an embodiment of the present disclosure. For example, the respiration measuring apparatus compares the waveform of the first signal S1 measured by the first sensor with the waveform of the second signal S2 measured by the second sensor. As a result of the comparison, the respiratory measuring device has a peak value P1 or higher in the waveform of the first signal S1 that is higher than or equal to a predetermined threshold value R, and a peak value higher than or equal to the threshold value R in the waveform of the second signal S2. (P2) can be recorded at the same time, and the number of cases where the difference (50 or 52) between the peak value (P1) and the peak value (P2) is smaller than a preset value can be counted and counted as the user's breathing rate. For example, as shown in FIG. 5, the peak value P1 of the waveform of the first signal S1 or more, which is higher than or equal to the preset threshold R, and the peak of the signal value of the threshold R or more, among the waveforms of the second signal S2. The value P2 was simultaneously recorded at the two timings of T1 and T2, wherein if the difference (50 or 52) between the peak value P1 and the peak value P2 of the timing is smaller than the preset value, breathing The measuring device may measure the respiratory rate of the user twice.

6 is a diagram illustrating another example of a signal obtained from a sensor of a respiration measuring device according to an embodiment of the present disclosure. For example, the respiration measuring apparatus compares the waveform of the first signal S1 measured by the first sensor with the waveform of the second signal S2 measured by the second sensor. In addition, the respiratory measuring device may count the number of times the peak value of the first signal (S1) and the second signal (S2) appears within a time difference of a predetermined range to measure by the user's respiratory rate. For example, as shown in FIG. 6, the peak value of the waveform of the first signal S1 was recorded at the timing of T1, and the peak value of the waveform of the second signal S2 was recorded at the timing of T2. At this time, if the time difference 60 between the T1 and the T2 is smaller than a preset value, the respiration measurement apparatus may have a peak value of the waveform of the first signal S1 and a peak value of the waveform of the second signal S2. It can be judged to be caused by breathing. In addition, the peak value of the waveform of the signal S1 was recorded at the timing T3, the peak value of the waveform of the second signal S2 was recorded at the timing T4, and the time difference 62 between the T3 and T4 was set in advance. If less than the value, the respiratory measurement device may count the respiratory rate of the user. In addition, the peak value of the waveform of the signal S1 was recorded at the timing of T5, and the peak value of the waveform of the second signal S2 was recorded at the timing of T6, but the time difference 64 between the T5 and T6 is preset. If greater than this value, the breathing apparatus may not count the user's breathing rate.

7 is a diagram illustrating an example of a signal obtained from a sensor and a voice signal measuring unit of a breathing apparatus according to an embodiment of the present application. For example, the respiration measuring apparatus compares the waveform of the first signal S1 measured by the first sensor with the waveform of the second signal S2 measured by the second sensor and the waveform of the voice signal S4. do. In addition, the respiratory measuring device measures the number of times when the peak value of the first signal S1, the peak value of the second signal S2, and the peak value of the voice signal S4 are simultaneously recorded, or the peak of the first signal S1. At the time when the value and the peak value of the second signal S2 are recorded, the number of times when the waveform of the voice signal S4 changes abruptly may be counted and measured by the user's respiration rate. For example, as shown in FIG. 7, the peak value is simultaneously recorded with the first signal S1 and the second signal S2 at three timings of T1, T2, and T3, and at this time, the audio signal S4. The waveform of was changed suddenly. Therefore, the respiratory measurement device may measure the respiratory rate of the user three times.

8 is a flowchart illustrating a respiratory measurement method according to an embodiment of the present application. The breath measuring method illustrated in FIG. 8 may be performed by the breath measuring apparatus described with reference to the above drawings. Therefore, even if omitted below, the descriptions of the apparatus for measuring breathing through FIGS. 1 to 7 also apply to FIG. 8.

The respiratory measuring device may measure a signal generated according to the movement of the user's body by the user's breathing with three or more sensors installed on a pad attachable to the user's body (S810). For example, the three or more sensors may include piezoelectric sensors.

Next, the respiratory measurement device may compare the signals measured by the three or more sensors (S820). For example, the respiration measurement apparatus may compare the waveform of the first signal measured by the first sensor and the waveform of the second signal measured by the second sensor.

Next, the respiratory measurement device may measure the respiratory rate of the user based on a comparison result of the signals measured by the three or more sensors (S830). For example, the respiratory measuring device may count the number of times per unit time at which the peak values of the first signal and the second signal appear at the same time and measure the number of respirations.

Next, the respiratory measuring device transmits the measured respiratory rate to an external output device linked with the respiratory measuring device using a network, and outputs itself to provide information about the respiratory rate to a user or a medical staff (S840). .

In the above description, steps S810 to S840 may be further divided into additional steps or combined into fewer steps, according to an embodiment of the present invention. In addition, some steps may be omitted as necessary, and the order between the steps may be changed.

The above-described respiratory measurement method may also be implemented in the form of a recording medium containing instructions executable by a computer, such as a program module executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transmission mechanism, and includes any information delivery media.

The above description of the present application is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the above description, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present application.

To illustrate the symbols of the drawings of the present application may be as follows.

10: pad 12: first sensor

14: second sensor 16: third sensor

18: audio signal measuring unit 20: band

22: external monitoring device 202: first sensor

204: second sensor 206: third sensor

208: voice signal measuring unit 210: memory

212: converter 214: amplifier

216: determination unit 218: output unit

220: transmission unit

Claims

In the respiratory measuring device,

A pad attachable to the user's body;

Three or more sensors installed on the pad and configured to measure signals generated by movement of the user's body by the user's breathing; And

Determination unit for measuring the respiratory rate of the user using a signal measured by at least two or more sensors of the three or more sensors;

Respiratory measurement device comprising a.
The method of claim 1,

The sensor includes a first sensor and a second sensor,

The determination unit compares the first signal measured by the first sensor and the second signal measured by the second sensor, and the peak value of the first signal and the second signal appear at the same time. Respiratory measurement device that counts the number of times to count the respiratory rate.
The method of claim 2,

The respiration measurement device further includes a conversion unit for converting the first signal and the second signal in the frequency domain,

The determination unit determines whether the frequency of the first signal and the frequency of the second signal match, and when the frequency of the first signal and the frequency of the second signal match, the first signal at the same time. And counting the number of times the peak value of the second signal appears as the respiratory rate.
The method of claim 2,

The sensor includes a third sensor,

The determination unit compares the first signal and the third signal measured by the third sensor, counts the number of times the peak value of the first signal and the third signal appear at the same time,

Wherein the determination unit counts the smaller number of times the peak value of the first signal and the second signal appear and the number of times the peak value of the first signal and the third signal appear in the same time as the respiratory rate. Breathing apparatus.
The method of claim 1,

The sensor includes a first sensor and a second sensor,

The determination unit compares the first signal measured by the first sensor and the second signal measured by the second sensor, and compares a peak value equal to or greater than a preset threshold of the first signal at the same time. And counting the number of cases where the difference between the peak values of the threshold value or more is smaller than a preset value and counting the number of breaths.
The method of claim 4, wherein

The respiration measurement device further includes a conversion unit for converting the first signal and the second signal in the frequency domain,

The determination unit determines whether the frequency of the first signal and the frequency of the second signal match, and when the frequency of the first signal and the frequency of the second signal match, the first signal at the same time. And the number of times when the difference between the peak value of the threshold value or more and the peak value of the second signal of the second signal or more is smaller than the preset value.
The method of claim 1,

The sensor includes a first sensor, a second sensor and a third sensor,

The determination unit compares the first signal measured by the first sensor with the second signal measured by the second sensor and the third signal measured by the third sensor, and compares the first signal with the first signal. And counting the number of times the peak value of the second signal and the third signal appear and counting the number of breaths.
The method of claim 1,

The sensor includes a first sensor and a second sensor,

The determination unit compares the first signal measured by the first sensor and the second signal measured by the second sensor,

And the determination unit counts the number of times a peak value of the first signal and the second signal appear within a preset time difference and counts the number of breaths.
The method of claim 1,

The three or more sensors will include a piezoelectric sensor.
The method of claim 1,

The three or more sensors are manufactured by MEMS (Micro Electro Mechanical Systems).
The method of claim 1,

And said at least three sensors comprise an acceleration sensor.
The method of claim 1,

The respiratory measuring device

And a memory storing data relating to a signal measured by the three or more sensors and the actual respiration rate of the user.

The determining unit measures the respiratory rate of the user based on the signal measured in at least two or more of the three or more sensors and the data stored in the memory.
The method of claim 1,

The respiratory measuring device

Respiratory measurement device further comprising an amplifier for amplifying the magnitude of the signal measured by the three or more sensors.
The method of claim 1,

The respiratory measuring device

Respiratory measurement device further comprises an output unit for outputting the signal measured by the three or more sensors and the measured respiratory rate.
The method of claim 1,

The respiratory measuring device

Respiratory measurement device further comprising a transmission unit for transmitting the signal measured by the three or more sensors and the measured respiratory rate to an external monitoring device in conjunction with the respiratory measurement device.
The method of claim 1,

The respiratory measuring device

Further comprising a voice signal measuring unit for measuring the voice signal generated when the user's breathing,

The determining unit measures the respiratory rate of the user based on the signal and the voice signal measured by at least two or more of the three or more sensors.
In the respiration measurement method,

Measuring a signal generated according to movement of the user's body by the user's breathing with three or more sensors installed on a pad attachable to the user's body;

Comparing a first signal measured by a first sensor among the three or more sensors with a second signal measured by a second sensor; And

Counting the number of times per unit time at which the peak value of the first signal and the second signal appear at the same time and measuring the number of breaths;

Respiratory measurement method comprising a.