KR102088392B1 - System and methodof monitoing sleep apnea using radar - Google Patents

Abstract

Disclosed is a sleep apnea monitoring system and method using a radar. A system according to an embodiment of the present invention, a sleep apnea monitoring system using a radar, a sleep state detection module for detecting whether a subject is in a sleep state; A radar module that measures a subject's breathing state using a pulse radar signal; A control module configured to control the radar module to measure the breathing state of the subject when the sleep state detection module detects the subject as a sleep state; An apnea state monitoring module for determining and monitoring the apnea state of the subject using the respiratory state of the subject measured by the radar module; An apnea severity determination module that determines the severity of apnea according to the frequency and duration of the apnea status monitored by the apnea status monitoring module; And an output module that outputs an apnea state determined and monitored by the apnea state monitoring module. According to the sleep apnea monitoring system and method using the above-described radar, it is configured to remotely sense the movement of the subject's chest using a radar to monitor the sleep apnea state, thereby continuously continuously maintaining the apnea state of the subject conveniently without attaching various sensors. It has the effect of being monitored.

Description

System and method for monitoring sleep apnea using radar {SYSTEM AND METHODOF MONITOING SLEEP APNEA USING RADAR}

The present invention relates to a sleep apnea monitoring system and method, specifically, to a sleep apnea monitoring system and method using a radar.

Sleep apnea often doesn't recognize you well.

Sleep apnea is known to cause or exacerbate a larger disease if it persists for a long time.

In particular, stroke patients have been reported to increase the mortality rate more than 40 times due to sleep apnea, and cancer patients have been found to increase the activation of cancer cells during sleep apnea.

In the case of sleep apnea patients, the pattern is various, and if sleep apnea persists for more than 10 seconds per minute at least 3 times, it is classified as mild if it is 15 times or moderate, and severe if it is 30 or more times.

Various systems for monitoring sleep apnea have been published, but there are many aspects that are unsuitable for general commercial use by attaching or complex devices.

It is also a factor that interferes with sleep.

10-2014-0006256 10-2017-0092259

An object of the present invention is to provide a sleep apnea monitoring system using a radar.

Another object of the present invention is to provide a sleep apnea monitoring method using a radar.

The system according to the object of the present invention described above, a sleep apnea monitoring system using a radar, a sleep state detection module for detecting whether a subject is in a sleep state; A radar module that measures a subject's breathing state using a pulse radar signal; A control module configured to control the radar module to measure the breathing state of the subject when the sleep state detection module detects the subject as a sleep state; An apnea state monitoring module for determining and monitoring the apnea state of the subject using the respiratory state of the subject measured by the radar module; An apnea severity determination module that determines the severity of apnea according to the frequency and duration of the apnea status monitored by the apnea status monitoring module; And an output module that outputs an apnea state judged and monitored by the apnea state monitoring module, wherein the apnea severity determination module determines that the apnea state is mild if it lasts for at least 10 seconds per minute or more. , If it is 15 times or more, it is determined to be an intermediate state between the mild and severe cases, and if it is 30 or more times, it is configured to determine it as the severe state, and the radar module transmits a radar signal to the chest of the subject to receive a reflected signal. And, it is configured to measure the respiratory state according to the change in the frequency of the received reflected signal, and the frequency is changed whenever the subject's chest is moved back and forth by breathing.

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Method according to another object of the present invention described above, sleep apnea monitoring method using a radar, the sleep state detection module detecting whether the subject's sleep state; Controlling the radar module to measure the respiration state of the subject when the sleep state detection module detects the sleep state; Measuring, by the radar module, the respiratory state of the subject using a pulse radar signal; An apnea status monitoring module determining and monitoring the apnea status of the subject using the respiratory status of the subject measured in the radar module; Determining the severity of apnea according to the frequency and duration of the apnea status monitored by the apnea status monitoring module; And outputting an apnea state determined and monitored by the apnea state monitoring module, and determining the severity of the apnea if the apnea state lasts for 10 seconds or more per minute if it is 3 or more times. Determining a mild state, if it is 15 times or more, determining the intermediate state between the mild and severe, and if it is 30 or more times, determining the severe state, and controlling to measure the respiratory state comprises: Further comprising the step of transmitting a radar signal to the subject's chest to receive a reflected signal, and measuring the respiratory state according to the change in the frequency of the received reflected signal, and the frequency of the subject's chest is back and forth by breathing It changes with every movement.

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According to the sleep apnea monitoring system and method using the above-described radar, it is configured to remotely sense the movement of the subject's chest using a radar to monitor the sleep apnea state, thereby continuously continuously maintaining the apnea state of the subject conveniently without attaching various sensors. It has the effect of being monitored.

1 is a block diagram of a sleep apnea monitoring system using a radar according to an embodiment of the present invention.
2 is a flow chart of a sleep apnea monitoring method using a radar according to an embodiment of the present invention.

The present invention can be variously changed and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in order to implement the invention. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, and B can be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component. The term and / or includes a combination of a plurality of related described items or any one of a plurality of related described items.

When an element is said to be "connected" or "connected" to another component, it is understood that other components may be directly connected to or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle.

The terms used in this 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. In this application, the terms "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts or combinations thereof described herein, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a sleep apnea monitoring system using a radar according to an embodiment of the present invention.

Referring to FIG. 1, a sleep apnea monitoring system 100 using a radar according to an embodiment of the present invention includes a sleep state detection module 110, a radar module 120, a control module 130, and apnea state monitoring module ( 140), an apnea weight determination module 150, an output module 160, an alarm module 170, and a pillow vibration module 180.

The sleep apnea monitoring system 100 using a radar may be configured to detect a sleep apnea state in real time by detecting a movement of a subject's chest through breathing.

Hereinafter, a detailed configuration will be described.

The sleep state detection module 110 may be configured to detect whether a subject is in a sleep state. There is no limitation on the method of the sleep state detection module 110. As an example, it may be configured to detect a person's brain waves and sense a sleep state.

The radar module 120 may be configured to measure a subject's breathing state using a radar signal. The radar module 120 may be configured to scan a target's chest with a radar signal and receive a signal reflected from the chest. The period or frequency of the received signal changes every time the chest moves forward and backward by breathing. It is possible to determine whether sleep is apnea by changing the frequency.

Through this, the subject's breathing state or apnea during sleep can be determined.

The control module 130 may be configured to control the radar module 120 to measure the respiration state of the subject when the subject is detected as the sleep state in the sleep state detection module 110.

Meanwhile, the sleep apnea monitoring system 100 using a radar may further include a backtracking detection module (not shown), and the backtracking detection module (not shown) may be configured to detect a backtracking state during a subject's sleep. Since it is difficult to detect the subject's chest breathing state in the backtracking state, it may be configured to drive and control the radar module 120 while there is no backtracking even during sleep.

The backtracking detection module (not shown) may be configured with a gyro sensor attached to a user's chest or body part. In addition to the gyro sensor, it may be an infrared image sensor that can detect the user's backtracking.

The apnea status monitoring module 140 may be configured to determine and monitor the apnea status of the subject using the respiratory status of the subject measured by the radar module 120. That is, it may be configured to determine whether the apnea state through the front and rear movement of the chest.

The output module 160 may be configured to output an apnea state determined and monitored by the apnea state monitoring module 140.

The apnea weight determination module 150 may be configured to determine the apnea weight according to the frequency and duration of the apnea status monitored by the apnea status monitoring module 140.

The apnea light weight determination module 150 may be configured to determine apnea if the apnea state during sleep lasts 10 seconds or more. In addition, the apnea lightness determination module 150 may be configured to classify and judge the apnea state during sleep as 3 times or more, mild, 15 times as moderate, and 30 times or more as severe.

At this time, the output module 160 may be configured to output the severity of apnea determined by the apnea severity determination module 150.

The alarm module 170 may be configured to immediately alert a subject's apnea condition. The alarm module 170 may be a vibrator attached to the subject's body or a speaker. In addition, the alarm module 170 may be configured to transmit a warning alarm message to a guardian or a terminal (not shown) of the target person.

When the apnea state monitoring module 140 determines that the subject is currently in apnea state, it may be configured to output an alarm sound.

The pillow vibration module 180 breathes the subject by vibrating a vibration motor previously provided on the pillow to stop the apnea state of the subject when the subject is determined to be currently apnea in the apnea state monitoring module 140 It can be configured to change the state. In addition to this, the inclination angle of the pillow may be changed by the pillow inclination angle changing module (not shown) to stop the apnea state of the subject.

2 is a flow chart of a sleep apnea monitoring method using a radar according to an embodiment of the present invention.

Referring to FIG. 2, first, the sleep state detection module detects whether the subject is in a sleep state (S101).

At this time, the sleep state detection module may be configured to detect whether a person is in a sleep state by detecting brain waves of a subject.

Next, when the sleep state detection module detects the sleep state, the control module controls the radar module to measure the respiration state of the subject (S102).

Next, the radar module measures a subject's respiratory state using a radar signal (S103).

Here, the radar module may be configured to transmit a radar signal to the chest of a subject to receive a reflected signal, and to measure a respiratory state according to a change in frequency of the received reflected signal.

Next, the apnea status monitoring module determines and monitors the apnea status of the subject using the respiratory status of the subject measured in the radar module (S104).

Next, the output module outputs the apnea state determined and monitored by the apnea state monitoring module (S105).

Next, the apnea weight determination module determines the weight of the apnea according to the frequency and duration of the apnea status monitored by the apnea status monitoring module (S106).

Next, the output module outputs the severity of the apnea determined by the apnea weight determination module (S107).

Although it has been described with reference to the above embodiments, those skilled in the art can understand that the present invention can be variously modified and changed within the scope not departing from the spirit and scope of the present invention described in the following claims. There will be.

110: sleep state detection module
120: radar module
130: control module
140: apnea condition monitoring module
150: Apnea weight judgment module
160: output module
170: alarm module
180: pillow vibration module

Claims (10)

A sleep state detection module that detects whether the subject is in a sleep state;
A radar module that measures a subject's breathing state using a pulse radar signal;
A control module configured to control the radar module to measure the breathing state of the subject when the sleep state detection module detects the subject as a sleep state;
An apnea state monitoring module for determining and monitoring the apnea state of the subject using the respiratory state of the subject measured by the radar module;
An apnea severity determination module that determines the severity of apnea according to the frequency and duration of the apnea status monitored by the apnea status monitoring module; And
And an output module that outputs an apnea state determined and monitored by the apnea state monitoring module,
The apnea weight determination module,
If the apnea state lasts for 10 seconds or more per minute is 3 or more and 14 or less, it is determined as a mild condition, and if it is 15 or more and 29 or less, it is determined as an intermediate state between the mild and severe, and if it is 30 or more, the Configured to judge as severe,
The radar module,
It is configured to transmit a radar signal to the chest of the subject to receive a reflection signal, and to measure the respiratory state according to the change in the frequency of the received reflection signal, and
The frequency is the sleep apnea monitoring system using a radar, characterized in that the subject's chest changes every time the anteroposterior movement is caused by breathing.
delete According to claim 1, The sleep state detection module,
Sleep apnea monitoring system using a radar, characterized in that configured to detect the state of sleep by detecting the brain waves of the subject.
delete The method of claim 3, wherein the output module,
Sleep apnea monitoring system using a radar, characterized in that configured to output the apnea weight determination result determined by the apnea weight determination module.
A sleep state detection module detecting whether the subject is in a sleep state;
Controlling the radar module to measure the respiration state of the subject when the sleep state detection module detects the sleep state;
Measuring, by the radar module, the respiratory state of the subject using a pulse radar signal;
An apnea status monitoring module determining and monitoring the apnea status of the subject using the respiratory status of the subject measured in the radar module;
Determining the severity of apnea according to the frequency and duration of the apnea status monitored by the apnea status monitoring module; And
And an output module outputting an apnea state determined and monitored by the apnea state monitoring module,
Determining the severity of the apnea,
If the apnea state lasts for 10 seconds or more per minute is 3 or more, it is determined to be mild, if it is 15 or more, it is determined to be an intermediate state between the mild and severe, and if it is 30 or more, it is determined to be the severe state Including,
The step of controlling to measure the breathing state,
Further comprising the step of transmitting a radar signal to the chest of the subject receives a reflected signal, and measuring the respiratory state according to the change in the frequency of the received reflected signal, and
The frequency is a sleep apnea monitoring method using a radar, characterized in that the subject's chest changes every time the anteroposterior movement is caused by breathing.
The method of claim 6, wherein the step of detecting whether the sleeping state of the subject is a sleeping state,
Sleep apnea monitoring method using a radar, characterized in that configured to detect whether the sleep state by detecting the brain waves of the subject.
delete delete The method of claim 7, wherein the step of outputting the apnea state,
A sleep apnea monitoring method using a radar, characterized in that it further comprises the step of outputting a result of determining the severity of the apnea determined by the apnea weight determination module.

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