KR102229999B1 - Apparatus for measuring respiration through chest displacement - Google Patents

Abstract

The present invention relates to an apparatus for measuring respiration through chest displacement. According to the present invention, the apparatus comprises: a radar transmission module transmitting a first signal having a radar pulse with respect to a measurement target existing in a designated place indoors or outdoors; a radar receiving module receiving a second signal which is formed by reflecting a first signal transmitted from the radar transmitting module from a corresponding measurement target and is related to the first signal; a signal processing module extracting a frequency including movement information on respiration or heartbeat of the corresponding measurement target from the first and second signals transmitted and received from the radar transmitting module and the radar receiving module, and processing the signals related to biometric information about the respiration rate or heart rate of the corresponding measurement target according to a phase change of the extracted frequency; and a respiratory analysis module receiving a signal related to the processed biometric information on the respiration rate or heart rate of the measurement target from the signal processing module to detect a change in chest displacement of the measurement target on the basis of the received signal and analyzing hyperventilation or tachypnea of the measurement target according to the change in the detected chest displacement of the measurement target. Accordingly, the apparatus provides an effect of efficiently observing the breathing state of a patient or individual existing in a hospital or personal living space.

Description

Breathing measurement device through the chest displacement of the object being measured {APPARATUS FOR MEASURING RESPIRATION THROUGH CHEST DISPLACEMENT}

The present invention relates to an apparatus for measuring respiration through chest displacement of a measurement object, and more particularly, to an apparatus for measuring respiration through chest displacement of a measurement object in a non-contact manner using a radar at a short distance.

In general, a biological signal such as respiration rate is one of the most convenient factors for diagnosing a human body's health status and abnormalities. Mainly in critically ill patients, emergency patients, patients during surgery, patients after surgery/treatment/test/recovery, or the elderly who are vulnerable to health maintenance, a biosignal meter (e.g., a respirator) is attached to continuously check vital signs.

For example, an oxygen mask is attached to a patient undergoing surgery to continuously check the patient's breathing status during surgery.The oxygen mask can give the patient a sense of fear, and a large number of connecting wires connecting the breathing status monitoring device together with the oxygen mask As a result, there was an inconvenience in the procedure or operation due to restrictions on the movement of medical staff such as doctors.

In addition, it is often necessary to check the breathing status of not only patients who are hospitalized or undergoing surgery, but also those who live outside the hospital. For example, it is necessary to measure the breathing patterns of the elderly with unstable breathing patterns or of infants living in a different space from their parents or during sleep.

In particular, in recent years, it is necessary to measure the actual respiration rate or respiration volume and use it to diagnose a person's health status, in addition to the degree of diagnosis of sleep apnea, a disease that temporarily does not breathe during sleep.

However, in the related art, it has been difficult to obtain data by accurately measuring a user's respiration rate and respiration volume without a respiration measuring device such as that provided in a hospital, and to accurately transfer the acquired data to a doctor in a hospital.

In particular, the conventional method of measuring the respiration rate by attaching a simple sensor to the body and using the primary signal obtained from the sensor is much insufficient in accuracy compared to the method of measuring the respiration rate through hospital equipment. .

In order to solve this problem, in Korean Patent Registration No. 10-1654914 (a breathing measuring device and a breathing measuring method using the same), a pad attachable to the user's body, installed on the pad, and the user's breathing Three or more sensors for measuring signals generated according to the user's body movement, and a determination unit for measuring the user's respiration rate using signals measured by at least two or more of the three or more sensors, 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, and within a time difference of a preset range. By counting the number of times the peak values of the first signal and the second signal appear and counting the number of respirations, a respiration measurement device capable of accurately and simply measuring the user's respiration rate is disclosed.

In this prior art, it is possible to remotely check the user's health status in real time by transmitting the user's breathing data during daily life outside the hospital to a system such as a hospital, and the user's respiratory rate without attaching equipment such as an oxygen mask to the user. By measuring, there is an advantage of being able to monitor the patient's breathing state in real time in parallel with surgery and various treatments.

However, in the conventional respiration measuring device and respiration measuring method, as a contact type device attached to the user's body, it has a limitation that it cannot measure respiration unless the user wears it.

Domestic Patent Registration No. 10-1654914 (announced on October 10, 2016) Korean Patent Publication No. 10-2006-0005092 (published on January 17, 2006)

The present invention was conceived to solve the above-described problem, and an object of the present invention is to measure the distance of a measurement object existing indoors or outdoors in a non-contact manner through a radar at a short distance, and based on this, the respiration of the measurement object And/or by detecting the heart rate, it is to provide a breathing measuring device through the chest displacement of the measurement object so that state information such as hyperventilation, tachypnea, etc. of a patient or individual can be efficiently observed in a hospital or personal living space.

In order to achieve the above object, one aspect of the present invention is a radar transmission module for transmitting a first signal having a radar pulse (Radar Pulse) to a measurement object existing in a designated place indoors or outdoors; A radar receiving module for reflecting a first signal transmitted from the radar transmitting module from a corresponding measurement object and receiving a second signal related to the first signal; Based on the first and second signals transmitted/received from the radar transmission module and the radar reception module, a frequency including motion information on the breathing or heartbeat of a corresponding measurement object is extracted, and corresponding to the phase change of the extracted frequency A signal processing module for processing a signal related to biometric information on the respiration rate or heart rate of the measurement target; And receiving a signal related to biometric information on the respiratory rate or heart rate of the measurement object processed from the signal processing module, detecting a change in the chest displacement of the measurement object based on this, and detecting the detected chest of the measurement object. It is to provide a respiratory measurement device through the displacement of the chest of the measurement object, including a breath analysis module that analyzes hyperventilation or tachypnea of the measurement object according to the change in displacement.

Here, the signal processing module converts the data of the second signal, which is a reflected electromagnetic wave, into a frequency domain through Fast Fourier Transform (FFT), and a frequency domain corresponding to a preset frequency range among the converted frequency domains. It is preferable that the peak value of the frequency is detected at and the phase value of the frequency over time is obtained using the detected peak value of the frequency.

Preferably, the signal processing module, when the electromagnetic wave of the first signal transmitted from the radar transmission module is reflected and returned, collects data on the second signal, which is a plurality of reflected electromagnetic waves that are reflected and returned through the radar receiving module. In addition, only data of the same frequency band may be acquired among the collected second signals, which are the plurality of reflected electromagnetic waves.

Preferably, the signal processing module may convert the obtained data of the same frequency band into a frequency domain through Fast Fourier Transform (FFT), and extract frequencies related to the respiratory rate and heart rate from the converted frequency domain.

Preferably, the signal processing module may detect a peak value by converting the converted frequency domain into a time domain, and measure a distance between the detected peak values to calculate a correlation coefficient for a heart rate of a corresponding measurement object. .

Preferably, the signal processing module may perform a phase unwrapping operation by adding or subtracting 2π from the phase when the phase difference between the continuous values with respect to the extracted frequency is greater than or less than ±π.

Preferably, the signal processing module may process a phase difference operation of subtracting a continuous phase value from the phase unwrapped phase.

Preferably, the signal processing module may determine the respiration rate and heart rate of the measurement target by performing spectrum estimation on the phase unwrapped and phase-difference-processed frequencies.

Preferably, the signal processing module generates a correlation equation of the respiration rate with respect to the frequency peak using the frequency related to the extracted respiration rate, and includes it in a preset respiration rate frequency range at the frequency related to the extracted respiration rate. The respiration rate of the measurement object can be determined based on the data of the frequency.

Preferably, the signal processing module generates a correlation equation of a heart rate with respect to a frequency peak using a frequency related to the extracted heart rate, and data of a frequency included in a preset heart rate frequency domain at a frequency related to the extracted heart rate Based on, the heart rate of the measurement object may be determined.

Preferably, the respiration analysis module, based on the detected change in the chest displacement of the measurement object, acquires the interval between breaths together with the cycle of inhalation or exhalation in the breathing process, and You can analyze your vagina or sleep quality.

Preferably, a measurement target tracking module for tracking a plurality of measurement targets using a beam steering technology capable of giving a phase change at a preset angle for each of the plurality of transmission antennas provided in the radar transmission module may be further included. have.

Preferably, the signal processing module extracts a frequency including motion information on the respiratory or heartbeat of each measurement object tracked from the measurement object tracking module, and according to the phase change of the extracted frequency, the measurement object is It can process signals related to biometric information about respiratory rate or heart rate.

Preferably, change state information on the chest displacement of the subject to be measured, information on the state of hyperventilation or tachypnea of the subject to be measured, information on the interval between breaths along with the cycle of inhalation/exhalation for the subject to be measured, and breathing for the subject to be measured A storage module for storing at least one state information of quality of sleep or sleep quality state information; And change status information on the chest displacement of the measurement object detected from the breathing analysis module, hyperventilation or tachypnea status information of the measurement object, inhalation/exhalation cycles for the measurement object, and interbreathing interval status information, corresponding Receives at least one of the status information of the quality of breathing or the quality of sleep for the measurement object, and based on this, the change status information on the chest displacement, hyperventilation or tachypnea status information, inhalation/exhalation cycle, and A control module for controlling at least one of state information between breathing intervals, breathing quality, and sleep quality state information to be converted into a database (DB) and stored in the storage module may be further included.

Preferably, change state information on the chest displacement of the subject to be measured, information on the state of hyperventilation or tachypnea of the subject to be measured, information on the interval between breaths along with the cycle of inhalation/exhalation for the subject to be measured, and breathing for the subject to be measured A display module that visually displays at least one state information of health quality or sleep quality state information; And change status information on the chest displacement of the measurement object detected from the breathing analysis module, hyperventilation or tachypnea status information of the measurement object, inhalation/exhalation cycles for the measurement object, and interbreathing interval status information, corresponding By receiving at least one of the status information of the quality of breathing or the quality of sleep for the measurement object, the user breathes with the change status information on the chest displacement for each measurement object, hyperventilation or tachypnea status information, and inhalation/exhalation cycles. A control module for controlling the operation of the display module may be further included to be displayed on a display screen to visually check at least one state information of inter-interval state information, breathing quality, and sleep quality state information.

Preferably, change state information on the chest displacement of the subject to be measured, information on the state of hyperventilation or tachypnea of the subject to be measured, information on the interval between breaths along with the cycle of inhalation/exhalation for the subject to be measured, and breathing for the subject to be measured A communication module that transmits at least one of state information of quality of sleep or sleep quality through wired or wireless communication; And change status information on the chest displacement of the measurement object detected from the breathing analysis module, hyperventilation or tachypnea status information of the measurement object, inhalation/exhalation cycles for the measurement object, and interbreathing interval status information, corresponding Receives at least one of the status information of the quality of breathing or the quality of sleep for the measurement target, and based on this, the change status information for the chest displacement for each measurement object, hyperventilation or tachypnea status information, and inhalation/exhalation cycles are provided. A control module for controlling the operation of the communication module may be further included to transmit at least one of status information between breathing interval status information, quality of breathing, or quality of sleep status information to an external terminal or server through a wired or wireless communication method. have.

Preferably, the external terminal or server, along with the change status information on the chest displacement for each measurement object transmitted from the communication module through a pre-installed respiration measurement-related application, hyperventilation or tachypnea status information, and inhalation/exhalation cycles. By receiving at least one status information among breathing interval status information, breathing quality, or sleep quality status information, based on this, by using at least one of a line, a circle, or a bar graph according to the user's request, by time/day/ At least one of the status information of the change of the chest displacement of the measurement target by day/week/month, hyperventilation or tachypnea status information, inhalation/exhalation interval status information along with inhalation/exhalation period status information, respiration quality or sleep quality status information A service can be provided so that the status information of is displayed on the display screen.

According to the apparatus for measuring breathing through chest displacement of the object to be measured of the present invention as described above, the distance of the object to be measured existing in a designated place indoors or outdoors is measured in a non-contact manner through a radar at a short distance, and based on this By detecting the breathing and/or heart rate of the patient, there is an advantage of being able to efficiently observe state information such as hyperventilation and tachypnea of a patient or individual in a hospital or personal living space.

1 is an overall block diagram for explaining a breathing measurement apparatus through a chest displacement of a measurement object according to an embodiment of the present invention.
2 is a detailed block diagram illustrating an external terminal applied to an embodiment of the present invention.

The above-described objects, features, and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, a person of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description will be omitted.

Terms including ordinal numbers such as first and second may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Terms used in the present invention have selected general terms that are currently widely used as possible while taking functions of the present invention into consideration, but this may vary according to the intention or precedent of a technician working in the field, the emergence of new technologies, and the like. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning of the terms will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall contents of the present invention, not a simple name of the term.

When a part of the specification is said to "include" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary. In addition, terms such as "... unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments of the present invention exemplified below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more completely describe the present invention to those of ordinary skill in the art.

Combinations of each block in the attached block diagram and each step in the flowchart may be executed by computer program instructions (execution engine), and these computer program instructions are on a processor of a general purpose computer, special purpose computer or other programmable data processing equipment. As can be mounted, the instructions executed by the processor of a computer or other programmable data processing equipment generate means for performing the functions described in each block of the block diagram or each step of the flowchart. These computer program instructions may also be stored in a computer-usable or computer-readable memory that can be directed to a computer or other programmable data processing equipment to implement a function in a particular manner, so that the computer-usable or computer-readable memory. It is also possible to produce an article of manufacture in which the instructions stored in the block diagram contain instruction means for performing the functions described in each block of the block diagram or each step of the flowchart.

In addition, since computer program instructions can be mounted on a computer or other programmable data processing equipment, a series of operation steps are performed on a computer or other programmable data processing equipment to create a process that is executed by a computer, It is also possible for the instructions to perform possible data processing equipment to provide steps for executing the functions described in each block of the block diagram and each step of the flowchart.

In addition, each block or each step may represent a module, segment, or part of code containing one or more executable instructions for executing specified logical functions, and in some alternative embodiments mentioned in the blocks or steps. It should be noted that it is also possible for functions to occur out of order. For example, two blocks or steps shown in succession may in fact be performed substantially simultaneously, and the blocks or steps may be performed in the reverse order of a corresponding function as necessary.

First, the breathing measurement device through the chest displacement of the measurement object according to an embodiment of the present invention uses a radar (Radar) sensor to measure a measurement object (eg, a patient, a general person, etc.) existing in a designated place indoors or outdoors. It is a device that detects signals related to biometric information in a non-contact manner.

In this case, the radar sensor is a sensor that transmits electromagnetic waves in a specific direction, and may include, for example, a mmWave radar sensor. The millimeter wave radar sensor is a sensor that uses a frequency between 30GHz and 300GHz.

The millimeter wave frequency has a directivity capable of concentrating an electromagnetic wave in a specific direction, and since an electromagnetic wave composed of a frequency having such a directivity characteristic is not affected by other external motions, it is possible to detect multiple human bodies. .

For example, if the electromagnetic wave output from the millimeter wave radar sensor is compared with the data (RSS value) of the reflected electromagnetic wave reflected by a person and an object, the object and the person reflect different amounts according to the dielectric constant of the object and the person. It is possible to observe the reflection of the amount of electromagnetic waves, and it is possible to distinguish whether the object that reflected the electromagnetic waves is an object or a person through a regression analysis of the reflected electromagnetic waves compared to the output electromagnetic waves.

1 is an overall block diagram for explaining a breathing measurement apparatus through chest displacement of a measurement object according to an embodiment of the present invention, and FIG. 2 is a detailed diagram for explaining an external terminal applied to an embodiment of the present invention It is a block diagram.

1 and 2, the apparatus for measuring breathing through chest displacement of a measurement object according to an embodiment of the present invention is largely a radar transmission module 100, a radar reception module 200, and a signal processing module 300. , A breathing analysis module 400, and a power supply module 500, and the like. In addition, the breathing measurement device through the chest displacement of the measurement object according to an embodiment of the present invention is a storage module 600, a display module 700, a measurement target tracking module 800, a communication module 900, a control module ( 950), an external terminal 20, and the like may be further included. On the other hand, since the components shown in FIGS. 1 and 2 are not essential, the apparatus for measuring respiration through chest displacement of a measurement object according to an embodiment of the present invention has more or fewer components. May be.

Hereinafter, a detailed look at the components of the breathing measuring apparatus through the chest displacement of the object to be measured according to an embodiment of the present invention will be described.

The radar transmission module 100 performs a function of transmitting a first signal having a radar pulse to a measurement object existing in a designated place indoors and/or outdoors.

That is, the radar transmission module 100 transmits a first signal having a radar pulse to a corresponding measurement object existing in a designated place indoors and/or outdoors, and radiates an impulse signal for detection of the measurement object to the outside. It is a component for (radiation), and although not shown in the drawing, it may generally include an impulse generator, a transmit antenna, and a transmission controller.

Here, the transmission control unit may provide data for impulse generation to the impulse generator, and the impulse generator may generate an impulse according to the control of the transmission control unit.

The radar receiving module 200 performs a function of reflecting a first signal transmitted from the radar transmitting module 100 from a corresponding measurement object and receiving a second signal related to the first signal.

Although not shown in the drawing, the radar receiving module 200 may generally include a receive antenna and a receive controller.

Here, the receiving antenna may receive a reflected signal of a pulse radiated by the radar transmission module 100, and an ultra-wideband antenna having high directivity may be used.

The reception control unit may analyze a signal received by the reception antenna. The signal received through the reception antenna includes not only a reflected signal of a measurement target, which is a detection target, but also a reflected signal by a surrounding object, and other signals other than the object must be removed for accurate measurement of the measurement target.

In addition, the reception control unit may include conventional components such as an amplification unit, an A/D conversion unit, a D/A conversion unit, a sampling unit, a demodulation unit, a filter unit, etc. Since it is the same as, a detailed description thereof will be omitted.

The signal processing module 300 is based on the first and second signals transmitted and received from the radar transmission module 100 and the radar reception module 200, the frequency containing the movement information on the breathing and/or heartbeat of the measurement object. It extracts and processes a signal related to biometric information on the respiratory rate and/or heart rate of a corresponding measurement object according to the phase change of the extracted frequency.

That is, the signal processing module 300 may extract the frequency from the data of the reflected electromagnetic wave and pre-process the phase of the extracted frequency. Here, the reflected electromagnetic wave data may include a frequency domain including motion information about a person's breathing and/or heartbeat. The frequency extracted from the reflected electromagnetic wave data has a dominant frequency peak, and the frequency of the frequency peak may be related to a person's respiration rate and/or heart rate.

In addition, the signal processing module 300 converts the data of the second signal, which is a reflected electromagnetic wave, into a frequency domain through Fast Fourier Transform (FFT), and a frequency corresponding to a preset frequency range among the converted frequency domains. A function of detecting a peak value of a frequency in a domain and obtaining a phase value of a frequency over time using the detected peak value of the frequency may be performed.

In addition, the signal processing module 300, when the electromagnetic wave of the first signal transmitted from the radar transmission module 100 is reflected and returned, a plurality of reflected electromagnetic waves that are reflected and returned through the radar reception module 200 (e.g., A function of collecting data on a second signal, which is a reflected electromagnetic wave, a reflected electromagnetic wave reflected N times, etc.), and obtaining only data of the same frequency band among the collected second signals, which are the plurality of reflected electromagnetic waves, may be performed.

In addition, the signal processing module 300 converts the acquired data of the same frequency band into a frequency domain through Fast Fourier Transform (FFT), and extracts a frequency related to the respiratory rate and/or heart rate from the converted frequency domain. You can do it.

In addition, the signal processing module 300 has a function of converting the converted frequency domain into a time domain to detect a peak value, measuring a distance between the detected peak values, and calculating a correlation coefficient for the heartbeat of the measurement object. You can do it.

In addition, the signal processing module 300 performs a function of processing a phase unwrapping operation by adding or subtracting 2π from the phase when the phase difference between the continuous values with respect to the extracted frequency is greater or less than ±π. can do.

That is, the signal processing module 300 may perform a phase unwrapping operation on the extracted frequency. For example, since the phase value is between [-π, π], the signal processing module 300 may process phase unwrapping by adding or subtracting 2π from the phase when the phase difference between successive values is greater than or less than ±π. I can.

In addition, the signal processing module 300 may perform a function of processing a phase difference operation of subtracting a continuous phase value from the phase unwrapped. Through the processing of the phase difference, it is possible to improve the accuracy of the human heartbeat data, and it may be helpful to remove the phase deviation.

In addition, the signal processing module 300 may perform a function of determining a respiratory rate and/or a heart rate of a corresponding measurement target by performing spectrum estimation on the phase unwrapped and phase difference-processed frequencies.

In addition, the signal processing module 300 generates a correlation equation of the respiratory rate with respect to the frequency peak by using the frequency related to the extracted respiratory rate, and a preset respiratory rate frequency range (e.g., , 0.1Hz to 0.5Hz) based on the data of the frequency included in the function of determining the respiration rate of the measurement target can be performed.

In addition, the signal processing module 300 generates a correlation equation of the heart rate with respect to the frequency peak by using the frequency related to the extracted heart rate, and a preset heart rate frequency range (e.g., at 0.8 Hz) in the frequency related to the extracted heart rate. 4.0Hz) can perform a function of determining the heart rate of the measurement target based on the data of the frequency included.

In addition, the signal processing module 300 extracts a frequency including motion information on the respiration and/or heartbeat of each measurement object tracked from the measurement object tracking module 800, and corresponds to the phase change of the extracted frequency. It may perform a function of processing a signal related to biometric information on the respiratory rate and/or heart rate of each measurement object.

The respiration analysis module 400 receives a signal related to biometric information on the respiratory rate and/or heart rate of the target to be measured processed from the signal processing module 300 and detects a change in the chest displacement of the target to be measured based on this. And, according to the detected change in the chest displacement of the measurement object, it performs a function of analyzing the hyperventilation and/or tachypnea of the measurement object.

In other words, the breathing analysis module 400 extracts the phase-changed parts from the reflected signal so that the chest enters and exits in the breathing process can be accurately measured, and the time point when the chest enters and exits can be known. Hyperventilation and/or tachypnea can be detected by measuring the time when the chest displacement remains unchanged when inhaling and the time when the chest displacement remains unchanged while exhaling.

In addition, the respiration analysis module 400 acquires the interval between breaths along with the cycle of inhalation or exhalation in the breathing process based on the detected change in the chest displacement of the corresponding measurement object, and It can perform a function of analyzing the quality and/or the quality of sleep.

That is, the breathing analysis module 400 observes the cycle of inhalation or exhalation during the breathing process and measures the interval between breaths, so that the quality of breathing is deteriorated. In addition to measuring the length of time in the chest, the quality of sleep can be analyzed by measuring the time at which the chest displacement does not change.

And, the power supply module 500 is each of the above-described modules, that is, a radar transmission module 100, a radar receiving module 200, a signal processing module 300, a respiration analysis module 400, a storage module 600, The display module 700, the measurement target tracking module 800, the communication module 900, and/or the control module 950, etc. ) It is preferable to implement the power source (eg, AC 220V) to be converted into direct current (DC) and/or alternating current (AC) power, but is not limited thereto, and may be implemented including a conventional portable battery.

In addition, the power supply module 500 may include a power management unit (not shown) that protects components from external power shock and outputs a constant voltage. The power management unit may include an Electro Static Damage (ESD) protector, a power detector, a rectifier, and a power circuit breaker.

Here, the ESD protector is configured to protect electronic components from static electricity or sudden power shock. The power detector is configured to transmit a cutoff signal to the power circuit breaker when a voltage outside the allowable voltage range is introduced, and to transmit a boost or step down signal to the rectifier according to a voltage change within the allowable voltage range. The rectifier is configured to perform a step-up or step-down rectification operation according to a signal from the power detector so that a constant voltage is supplied by minimizing a fluctuation of the input voltage. The power circuit breaker is configured to cut off power supplied from the battery according to the blocking signal transmitted from the power detector.

Additionally, the storage module 600 includes change state information on the chest displacement of the measurement object, hyperventilation and/or tachypnea status information of the measurement object, and intervals between breaths along with the cycle of inhalation and/or exhalation for the measurement object. It performs a function of storing at least one state information of state information, respiration quality and/or sleep quality state information for a corresponding measurement object.

Such a storage module 600 is, for example, a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg, SD or XD memory). Etc.), RAM (Random Access Memory, RAM), SRAM (Static Random Access Memory), ROM (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), It may include at least one type of storage medium among magnetic memory, magnetic disk, and optical disk.

The display module 700 includes change state information on the chest displacement of a corresponding measurement object, hyperventilation and/or tachypnea status information of the measurement object, and interval between breaths along with a cycle of inhalation and/or exhalation for the measurement object. , It performs a function of visually displaying at least one status information of the quality of breathing and/or the quality of sleep for the measurement object.

Such a display module 700 is, for example, a liquid crystal display (LCD), a light emitting diode display (LED), a thin film transistor liquid crystal display (TFT LCD), and an organic light emitting diode. (Organic Light Emitting Diode, OLED), Flexible Display, Plasma Display Panel (PDP), Surface Alternate Lighting (ALiS), Digital Light Source Treatment (DLP), Silicon Liquid Crystal (LCoS), Surface Conduction Electron-emitting device display (SED), field emission display (FED), laser TV (quantum dot laser, liquid crystal laser), optoelectric liquid display (FLD), interferometric modulator display (iMoD), thick film dielectric electricity (TDEL), It may include at least one of a quantum dot display (QD-LED), a telescopic pixel display (TPD), an organic light emitting transistor (OLET), a laser fluorescent display (LPD), and a 3D display, but is not limited thereto. Any module may be included as long as it can display relevant information data for respiration measurement.

The measurement target tracking module 800 is a function of tracking a plurality of measurement targets using a beam steering technology capable of giving a phase change at a preset angle for each of a plurality of transmission antennas provided in the radar transmission module 100 Perform.

That is, when the beam steering technology is used, although there are two transmission antennas, for example, three or more persons can be measured. If the wavelength resolution is set at 5 mm and 20 degrees, which is about 60 GHz, eight persons can be measured at the same time.

The communication module 900 includes change status information on the chest displacement of the measurement object, hyperventilation and/or tachypnea status information of the measurement object, and interval status information between breaths along with the cycle of inhalation and/or exhalation for the measurement object. , It performs a function of transmitting at least one of the state information of the quality of breath and/or sleep quality for the measurement object by wired and/or wireless communication.

This communication module 900 is preferably implemented to be wired and/or wireless communication through the communication network 10, but is not limited thereto, and the wireless communication method is, for example, Bluetooth communication, ZigBee communication, It may be implemented to perform short-range wireless communication of any one of UWB (Ultra Wideband) communication, RFID (Radio Frequency Identification) communication, or infrared (IR) communication.

On the other hand, the communication network 10 is a communication network, which is a high-speed backbone network of a large communication network capable of large-capacity, long-distance voice and data services, and Wi-Fi, WiGig, for providing Internet or high-speed multimedia services. It may be a next-generation wireless communication network including Wibro (Wireless Broadband Internet, Wibro), Wimax (World Interoperability for Microwave Access, Wimax), and the like.

The Internet is a TCP/IP protocol and various services that exist in the upper layer, namely HTTP (Hyper Text Transfer Protocol), Telnet, FTP (File Transfer Protocol), DNS (Domain Name System), SMTP (Simple Mail Transfer Protocol), It refers to a global open computer network structure that provides Simple Network Management Protocol (SNMP), Network File Service (NFS), and Network Information Service (NIS), and the communication module 900 is an external terminal 20 and/or It provides an environment that allows access to the server. Meanwhile, the Internet may be a wired or wireless Internet, or may be a core network integrated with a wired public network, a wireless mobile communication network, or a portable Internet.

If the communication network 10 is a mobile communication network, it may be a synchronous mobile communication network or an asynchronous mobile communication network. As an embodiment of the asynchronous mobile communication network, a wideband code division multiple access (WCDMA) communication network may be used. In this case, although not shown in the drawing, the mobile communication network may include, for example, a Radio Network Controller (RNC). Meanwhile, although the WCDMA network was exemplified, it may be a next-generation communication network such as a cellular 3G network, an LTE network, a 4G network, and a 5G network, and other IP-based IP networks. The communication network 10 serves to mutually transmit signals and data of the communication module 900 and the external terminal 20 and/or the server.

The control module 950 performs overall control of the breathing measurement apparatus through the chest displacement of the measurement object according to an embodiment of the present invention. Each of the above-described modules, that is, a radar transmission module 100, a radar reception module ( 200), signal processing module 300, respiration analysis module 400, storage module 600, display module 700, to control the operation of the measurement target tracking module 800, and/or the communication module 900 Performs a function.

In addition, the control module 950 is the change state information on the chest displacement of the measurement object detected from the breathing analysis module 400, hyperventilation and/or tachypnea status information of the measurement object, inhalation and/or inhalation for the measurement object. Or, with the cycle of exhalation, at least one of the state information of the interval between breaths, the quality of breathing and/or the quality of sleep for the object to be measured is received, and based on this, the state of change in the chest displacement for each object to be measured. Information, hyperventilation and/or tachypnea status information, inhalation and/or exhalation cycles along with at least one status information among breathing interval status information, breathing quality and/or sleep quality status information is converted into a database (DB). It performs a function of controlling to be stored in the storage module 600.

In addition, the control module 950 is the change state information on the chest displacement of the measurement object detected from the breathing analysis module 400, hyperventilation and/or tachypnea status information of the measurement object, inhalation and/or inhalation for the measurement object. Or, by receiving at least one of status information between breathing intervals, breathing quality and/or sleep quality status information for the measurement object, along with the period of exhalation, the user receives the change status information on the chest displacement for each measurement object, On the display screen to visually check at least one of the status information of hyperventilation and/or tachypnea status information, interval between breaths status information, quality of breathing and/or sleep quality status information along with the cycle of inhalation and/or exhalation. A function of controlling the operation of the display module 700 to be displayed may be performed.

In addition, the control module 950 is the change state information on the chest displacement of the measurement object detected from the breathing analysis module 400, hyperventilation and/or tachypnea status information of the measurement object, inhalation and/or inhalation for the measurement object. Or, with the cycle of exhalation, at least one of the state information of the interval between breaths, the quality of breathing and/or the quality of sleep for the measurement object is received, and based on this, the change status information on the chest displacement for each measurement object. , Hyperventilation and/or tachypnea status information, interval between breathing status information, breathing quality and/or sleep quality status information along with periods of inhalation and/or exhalation are wired through the communication network 10 And/or it may perform a function of controlling the operation of the communication module 900 to be transmitted to an external terminal 20 and/or a server in a wireless communication method.

Various embodiments described herein may be implemented in a recording medium that can be read by a computer or a similar device using, for example, software, hardware, or a combination thereof.

According to hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs). , Processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions may be used. In some cases, such embodiments may be implemented by the control module 950.

According to a software implementation, embodiments such as procedures or functions may be implemented together with separate software modules that perform at least one function or operation. The software code can be implemented by a software application written in an appropriate programming language. In addition, the software code may be stored in the storage module 600 and executed by the control module 950.

And, the external terminal 20 and / or server (Server) is transmitted from the communication module 900 through the pre-installed respiratory measurement-related application, the change state information on the chest displacement for each measurement object, hyperventilation and / or tachypnea state Information, inhalation and/or exhalation cycles, as well as at least one of status information between breathing intervals, breathing quality, and/or sleep quality status information are received, and based on this, line, circle, and/or Or, using at least one of the bar graphs hourly and/or daily and/or weekly and/or weekly and/or monthly change state information on the chest displacement of the subject to be measured, hyperventilation and/or tachypnea state information, It performs a function of providing a service so that at least one of status information between breathing intervals, breathing quality, and/or sleep quality status information is displayed on a display screen along with a cycle of inhalation and/or exhalation.

The external terminal 20 is preferably made of at least one mobile terminal device among a smart phone, a smart pad, or a smart note communicating through wireless Internet or portable Internet, In addition, personal PCs, notebook PCs, Palm PCs, mobile play-stations, digital multimedia broadcasting (DMB) phones with communication functions, tablet PCs, and communication networks 10 and/or All wired/wireless home appliances/communication devices having a user interface for accessing a server may be generically meant.

As shown in FIG. 2, the external terminal 20 includes a wireless communication module 21, an audio/video (A/V) input module 22, a user input module 23, a sensing module 24, and It may include an output module 25, a storage module 26, an interface module 27, a terminal control module 28, a power module 29, and the like. Meanwhile, since the components shown in FIG. 2 are not essential, the external terminal 20 may have more components or fewer components.

Hereinafter, a detailed look at the components of the external terminal 20 are as follows.

The wireless communication module 21 may include one or more modules that enable wireless communication between the external terminal 20 and the communication module 900. For example, the wireless communication module 21 may include a broadcast reception module 21a, a mobile communication module 21b, a wireless Internet module 21c, a short-range communication module 21d, and a location information module 21e.

The broadcast receiving module 21a broadcasts broadcast signals (eg, TV broadcast signals, radio broadcast signals, data broadcast signals, etc.) and/or broadcasts from an external broadcast management server through various broadcast channels (eg, satellite channels, terrestrial channels, etc.). Receive related information.

The mobile communication module 21b transmits and receives a radio signal with at least one of a base station, an external terminal 20, and a server on a mobile communication network. The wireless signal may include a voice call signal, a video call signal, or various types of data according to transmission and reception of text/multimedia messages.

The wireless Internet module 21c is a module for wireless Internet access, and may be built in or external to the external terminal 20. As the wireless Internet technology, for example, WLAN (Wi-Fi), Wibro, Wimax, HSDPA, LTE, and the like may be used.

The short-range communication module 21d is a module for short-range communication, for example, Bluetooth communication, ZigBee communication, Ultra Wideband (UWB) communication, Radio Frequency Identification (RFID) communication, or infrared data association (IrDA). ) Communication, etc. can be used.

The location information module 21e is a module for checking or obtaining the location of the external terminal 20, and may obtain current location information of the external terminal 20 using a Global Position System (GPS) or the like.

Meanwhile, the communication module 900 using a specific application program stored in the storage module 26 through the above-described wireless communication module 21 and/or a wired communication module (not shown) under the control of the terminal control module 28. And data transmission and reception can be performed.

The A/V input module 22 is a module for inputting an audio signal or a video signal, and may basically include a camera unit 22a and a microphone unit 22b. The camera unit 22a processes image frames such as still images or moving pictures obtained by an image sensor in a video call mode or a photographing mode. The microphone unit 22b receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc. and processes it as electrical voice data.

The user input module 23 is a module that generates input data for controlling the operation of the external terminal 20, and in particular, it is applied to any one of the data management information displayed through the display unit 25a of the output module 25. Performs a function of inputting a selection signal for, for example, a touch panel input by a user's touch (positive pressure/power failure), or using a separate input device (e.g., a keypad dome switch, a jog wheel, a jog switch, etc.) Can be entered.

The sensing module 24 is the open/closed state of the external terminal 20, the location of the external terminal 20, the presence or absence of user contact, the user's touch motion to a specific part, the orientation of the external terminal 20, the external terminal A sensing signal for controlling the operation of the external terminal 20 is generated by detecting the current state of the external terminal 20, such as acceleration/deceleration of (20). Such a sensing signal is transmitted to the terminal control module 28, and may serve as a basis for the terminal control module 28 to perform a specific function.

The output module 25 is a module for generating output related to visual, auditory or tactile sense, and basically includes a display unit 25a, an audio output unit 25b, an alarm unit 25c, and a haptic unit 25d. I can.

The display unit 25a is for displaying and outputting information processed by the external terminal 20, for example, when the external terminal 20 is in a call mode, a user interface (UI) or a graphical user interface (GUI) related to a call ), and in the case of a video call mode or a photographing mode, a photographed and/or received image, UI, or GUI is displayed.

The sound output unit 25b may output audio data received from the wireless communication module 21 or stored in the storage module 26 in, for example, a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, etc. .

The alarm unit 25c may output a signal for notifying the occurrence of an event of the external terminal 20. Examples of events occurring in the external terminal 20 include call signal reception, message reception, key signal input, and touch input.

The haptic unit 25d generates various tactile effects that the user can feel. A typical example of the tactile effect generated by the haptic unit 25d is vibration. The intensity and pattern of the vibration generated by the haptic part 25d can be controlled.

The storage module 26 may store a program for the operation of the terminal control module 28 and may temporarily store input/output data (eg, a phone book, a message, a still image, a video, etc.).

In addition, the storage module 26 may store data related to vibrations and sounds of various patterns output when a touch input on the touch screen is input, and may store an application program related to respiration measurement.

In addition, the storage module 26 may store source data for the formation of respiration measurement-related information, and the respiration measurement-related data may be made in a form consisting of images and sounds, and the process of generating related data for respiration measurement. Processes and results can also be stored together.

The storage module 26 is a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory, etc.), RAM, SRAM, ROM, EEPROM, and PROM. , A magnetic memory, a magnetic disk, and an optical disk.

The interface module 27 serves as a passage for all external devices connected to the external terminal 20. The interface module 27 receives data from an external device or receives power and transmits it to each component inside the external terminal 20 or transmits data inside the external terminal 20 to an external device.

The terminal control module 28 generally controls the overall operation of the external terminal 20, and performs related control and processing for, for example, a voice call, data communication, video call, and execution of various applications.

That is, the terminal control module 28 controls the respiration measurement-related application program stored in the storage module 26 to be executed, and requests the generation of respiration measurement-related data through the execution of the respiration measurement-related application program, and measures respiration for this. It performs the function of controlling so that related data can be provided.

In addition, the terminal control module 28 displays the auxiliary elements including at least one of video, audio, and sound in the process of generating the respiratory measurement-related data desired by the user through the execution of the respiration measurement-related application program, the display unit 25a and the It performs a function of controlling to be output through at least one of other output devices (eg, the sound output unit 25b, the alarm unit 25c, the haptic unit 25d, etc.).

In addition, the terminal control module 28 may monitor the charging current and the charging voltage of the battery unit 29a at all times, and temporarily store the monitoring value in the storage module 26. At this time, it is preferable that the storage module 26 stores not only battery charging status information such as monitored charging current and charging voltage, but also battery specification information (product code, rating, etc.).

The power module 29 receives external power and internal power under the control of the terminal control module 28 to supply power necessary for the operation of each component. The power module 29 operates by supplying power from the built-in battery unit 29a to each component, and charging the battery is possible using a charging terminal (not shown).

Various embodiments described herein may be implemented in a recording medium that can be read by a computer or a similar device using, for example, software, hardware, or a combination thereof.

According to hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs). , Processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions may be used. In some cases such embodiments may be implemented by the terminal control module 28.

According to a software implementation, embodiments such as procedures or functions may be implemented together with separate software modules that perform at least one function or operation. The software code can be implemented by a software application written in an appropriate programming language. Further, the software code is stored in the storage module 26 and can be executed by the terminal control module 28.

If the external terminal 20 is made of a smartphone, the smartphone can freely use and delete various application programs desired by the user, unlike a general mobile phone (a feature phone). As a phone based on an open operating system that is possible, not only functions such as voice/video calls and Internet data communication, which are commonly used, but also all mobile phones with mobile office functions or all Internet that do not have voice call functions but can access the Internet It is preferable to understand it as a communication device including a phone or tablet PC.

As described above, since a smartphone uses an open operating system, unlike a mobile phone having a closed operating system, a user can arbitrarily install and manage various application programs.

Although a preferred embodiment of the breathing measurement device through the chest displacement of the measurement object according to the present invention has been described above, the present invention is not limited thereto, and the scope of the claims and the detailed description of the invention and the accompanying drawings It is possible to implement it by transforming it into a branch, and this also belongs to the present invention.

100: radar transmission module,
200: radar receiving module,
300: signal processing module,
400: respiratory analysis module,
500: power supply module,
600: storage module,
700: display module,
800: tracking module to be measured,
900: communication module,
950: control module

Claims (16)

A radar transmission module for transmitting a first signal having a radar pulse to a measurement object existing in a designated place indoors or outdoors;
A radar receiving module for reflecting a first signal transmitted from the radar transmitting module from a corresponding measurement object and receiving a second signal related to the first signal;
A measurement target tracking module for tracking a plurality of measurement targets using a beam steering technology capable of giving a phase change to a predetermined angle for each of a plurality of transmission antennas provided in the radar transmission module;
Based on the first and second signals transmitted/received from the radar transmission module and the radar reception module, a frequency including motion information on the breathing or heartbeat of a corresponding measurement object is extracted, and corresponding to the phase change of the extracted frequency A signal processing module for processing a signal related to biometric information on the respiration rate or heart rate of the measurement target;
Receives a signal related to biometric information on the respiratory rate or heart rate of the measurement object processed from the signal processing module, detects a change in the chest displacement of the measurement object based on this, and detects the chest displacement of the measurement object Respiration analysis module for analyzing hyperventilation or tachypnea of the measurement object according to the change to;
Change status information on the chest displacement of the measurement object, hyperventilation and tachypnea status information of the measurement object, interval status information between breaths along with the inhalation/exhalation cycle for the measurement object, and the quality of breathing for the measurement object A storage module for storing state information of sleep quality and sleep;
Change status information on the chest displacement of the measurement object, hyperventilation and tachypnea status information of the measurement object, interval status information between breaths along with the inhalation/exhalation cycle for the measurement object, and the quality of breathing for the measurement object A display module that visually displays state information of sleep quality and sleep;
Change status information on the chest displacement of the measurement object, hyperventilation and tachypnea status information of the measurement object, interval status information between breaths along with the inhalation/exhalation cycle for the measurement object, and the quality of breathing for the measurement object A communication module for transmitting state information of sleep quality and sleep by wired or wireless communication; And
Change status information on the chest displacement of the measurement object detected from the breathing analysis module, hyperventilation and tachypnea status information of the measurement object, interval status information between breaths along with the cycle of inhalation/exhalation for the measurement object, and the corresponding Received information on the quality of breathing and sleep quality for the measurement target, and based on this, information on the change status of the chest displacement, hyperventilation and tachypnea status information, and inhalation/exhalation cycles, as well as interbreathing interval status information , And the state information of the quality of breath and sleep is converted into a database (DB) and controlled to be stored in the storage module, and change state information on the chest displacement of the measurement object detected from the breathing analysis module, and the measurement object Hyperventilation and tachypnea status information, breathing interval status information along with inhalation/exhalation cycles for the measurement object, and breathing quality and sleep quality status information for the measurement object are provided so that the user can displace the chest for each measurement object. Change status information, hyperventilation and tachypnea status information, interval between breathing status information along with inhalation/exhalation cycles, breathing quality and sleep quality status information of the display module to be displayed on the display screen to visually check It controls the motion, and the change status information on the chest displacement of the measurement object detected from the breath analysis module, the hyperventilation and tachypnea status information of the measurement object, the interval between breaths along with the cycle of inhalation/exhalation for the measurement object Breathing with status information, and breathing quality and sleep quality status information for the measurement object, and change status information on the chest displacement for each measurement object, hyperventilation and tachypnea status information, and inhalation/exhalation cycles based on this Including a control module for controlling the operation of the communication module so as to transmit inter-interval status information, and breathing quality and sleep quality status information to an external terminal or server in a wired or wireless communication method,
The signal processing module converts data of a second signal, which is a reflected electromagnetic wave, into a frequency domain through a Fast Fourier Transform (FFT), and transmits a frequency in a frequency domain corresponding to a preset frequency range among the converted frequency domains. The peak value of is detected, the phase value of the frequency over time is obtained by using the peak value of the detected frequency, and when the electromagnetic wave of the first signal transmitted from the radar transmission module is reflected and returned, the radar receiving module Collects data on a second signal, which is a plurality of reflected electromagnetic waves reflected and returned through, and acquires only data of the same frequency band among the collected second signals, which is a plurality of reflected electromagnetic waves, and the acquired data of the same frequency band is obtained at high speed. Converts to a frequency domain through a Fourier transform (FFT), extracts frequencies related to respiratory rate and heart rate from the converted frequency domain, converts the converted frequency domain to a time domain to detect a peak value, and detects the detected By measuring the distance between the peak values, the correlation coefficient for the heart rate of the measurement object is calculated, and when the phase difference between consecutive values with respect to the extracted frequency is greater than or less than ±π, 2π is added or subtracted from the phase to unwrap the phase. (Phase Unwrapping) process, phase difference (Phase Difference) operation of subtracting continuous phase values from the phase unwrapped, and spectrum estimation of the phase unwrapped and phase difference-processed frequencies Thus, the respiration rate and heart rate of the measurement object are determined, and a correlation equation of the respiration rate for the frequency peak is generated using the extracted respiration rate and a preset respiration rate at the frequency related to the extracted respiration rate. The respiration rate of the measurement target is determined based on the frequency data included in the frequency domain, and a correlation equation of the heart rate with respect to the frequency peak is generated by using the extracted frequency related to the heart rate, and the frequency related to the extracted heart rate Heart rate frequency preset in The heart rate of the measurement target is determined based on the frequency data included in the station, and the frequency including the respiration or motion information of the heart rate of each measurement target tracked from the measurement target tracking module is extracted, and the extracted frequency Processes signals related to biometric information about the respiratory rate or heart rate of each measurement target according to the phase change of
The breathing analysis module, based on the detected change in the chest displacement of the measurement object, acquires the interval between breaths along with the cycle of inhalation or exhalation in the breathing process, and breathing quality and sleep for the measurement object. Analyze the quality of
The external terminal or server is the change status information on the chest displacement for each measurement object transmitted from the communication module through a pre-installed respiration measurement-related application, hyperventilation or tachypnea status information, the interval between breaths along with the cycle of inhalation/exhalation. By receiving at least one of the status information, the quality of breathing, or the quality of sleep status information, based on this, by using at least one of a line, a circle, or a bar graph according to the user's request, by time/day/day/weekly /Monthly, the change status information on the chest displacement of the measurement object, hyperventilation and tachypnea status information, interval between breaths along with inhalation/exhalation cycles, and breathing quality and sleep quality status information are displayed on the display screen. Breathing measurement device through the chest displacement of the measurement object, characterized in that to provide a service as possible. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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