KR20230114931A - User monitoring system using biosignal - Google Patents

Abstract

A user's condition monitoring system using biosignals according to an embodiment of the present invention generates and provides a first biosignal and a second biosignal at the corresponding position when placed in contact with different positions of the user's body. When a signal suspected of abnormal state of the user is generated based on the first biosignal from the measuring device and the biosignal measuring device contacting the first position of the user's body, the biosignal measuring apparatus contacting the second position of the user's body Receives a second bio-signal from the first bio-signal, generates a differential signal of the second bio-signal based on the first bio-signal, and uses the differential signal to detect at least one of the suspected abnormal heart condition signal and the abnormal respiratory condition suspected signal. When a signal is generated, a notification instructing a change in position of the electrode is generated and then the user induces the electrode to move to a third position.

Description

User condition monitoring system using biosignal and its execution method {USER MONITORING SYSTEM USING BIOSIGNAL}

The present invention relates to a user condition monitoring system using biosignals and a method for executing the same, and more particularly, to a user condition monitoring system using biosignals capable of monitoring a user condition using biosignals measured at different locations, and It's about how to do it.

Recently, as interest in health increases, a demand for managing one's own health by measuring and immediately checking one's own biometric information while carrying is increasing. In accordance with these demands, a portable biometric information measuring device capable of checking one's health condition anytime, anywhere is in the limelight.

To this end, the device for measuring biometric information may be provided in the form of a module in an electronic device such as a mobile terminal that is easy to carry and easy to use, or may be provided to be downloaded in the form of an application.

An electronic device capable of measuring biometric information measures biometric information by attaching or contacting a plurality of electrodes to a corresponding part of the body according to the type of biometric information, analyzes the measured biometric information, and analyzes the provided biometric index and body composition of the subject. Through this, it became possible to check the state of health immediately.

A condition in which the heart beat is too slow, too fast, or irregular, that is, a condition in which the heart beat is not normal is called an arrhythmia. Atrial fibrillation (AF) is one of these arrhythmias, in which the atria do not beat normally, and each part trembles disorderly and thinly, resulting in a fast and irregular heartbeat.

Atrial fibrillation is one of the relatively frequent arrhythmias, and it is the most common among arrhythmias that require treatment, and about 33% of all arrhythmia-related inpatients are patients with atrial fibrillation. Early and accurate prediction of frequent atrial fibrillation like this is of great medical significance.

If atrial fibrillation occurs, a state in which the atria do not contract normally and tremble thinly, it can itself cause symptoms such as shortness of breath or chest pain. However, in addition to the symptoms of atrial fibrillation itself, the probability of more serious and dangerous arrhythmia increases, and the risk of various serious problems derived from the inability to effectively pump blood out of the heart due to atrial fibrillation also increases.

Accordingly, when atrial fibrillation can be predicted accurately, it is possible to increase the possibility of preventing atrial fibrillation by considering various atrial pacing methods, thereby helping to reduce hospitalization costs or patient pain.

An object of the present invention is to provide a user condition monitoring system using biosignals capable of monitoring a user condition using biosignals measured at different locations and a method for executing the same.

In addition, the present invention measures the respiratory signal and the electrocardiogram signal by placing the electrode in the first position to simultaneously monitor the abnormal breathing state and the abnormal heart state, and then accurately measures the signal corresponding to the suspicious situation when a suspicious situation occurs. An object of the present invention is to provide a system for monitoring a user's condition using a biosignal to move an electrode to a second position and a method for executing the same.

In addition, the present invention monitors a user's condition using biosignals to accurately detect an abnormal breathing state and an abnormal heart condition using a first biosignal measured at a first location and a second biosignal measured at a second location. Its purpose is to provide a system and its execution method.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

A user condition monitoring system using bio-signals to achieve this object is a bio-signal measuring device that generates and provides a first bio-signal and a second bio-signal from the user's body when placed in contact with different locations of the user's body. and when a signal suspected of abnormal state of the user is generated based on the first bio-signal from the bio-signal measuring device contacting the first position of the user's body, a notification instructing a change in the position of the electrode is generated, and the second part of the user's body and a user state monitoring device that stores the second bio-signal when it is received from the bio-signal measuring device in contact with the location.

In addition, a user condition monitoring method using biosignals to achieve this object includes generating a first biosignal by a biosignal measurement device that is in contact with a first position of the user's body and providing the first biosignal to the user condition monitoring device, the user status Generating, by the monitoring device, a notification instructing an electrode position change when a signal suspected of abnormal state of the user is generated based on the first biosignal, the biosignal measuring device is moved by the user to a second location in the user's body Then, generating a second biosignal by the biosignal measuring device contacting the second position and providing the second biosignal to the user condition monitoring device, and the user condition monitoring device using the first biosignal and the second biosignal It includes monitoring the user's status.

According to the present invention as described above, there is an advantage in that a respiration signal and an electrocardiogram signal can be measured using biosignals measured at different locations.

In addition, according to the present invention, in order to simultaneously monitor abnormal breathing conditions and abnormal heart conditions, electrodes are placed in the first position to measure respiratory signals and electrocardiogram signals, and then, when a suspicious situation occurs, the signal corresponding to the suspicious situation can be accurately measured. There is an advantage that the electrode can be moved to the second position.

In addition, according to the present invention, an abnormal breathing state and an abnormal heart condition can be accurately detected using the first biosignal measured at the first location and the second biosignal measured at the second location.

1 is a network configuration diagram illustrating a system for monitoring a user's condition using a biosignal according to an embodiment of the present invention.
2 is a flowchart for explaining an embodiment of a method for monitoring a user's condition using bio-signals according to the present invention.
3 and 4 are exemplary diagrams for explaining a user condition monitoring system using biosignals according to an embodiment of the present invention.
5 is an exemplary diagram for explaining a process of monitoring a user's condition using bio-signals according to an embodiment of the present invention.
6 is a graph for explaining biosignals sensed at different locations according to the present invention.

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention. In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

"Biological signal measuring device" according to the present invention is a mobile medical device, camera, or wearable device (eg, smart glasses, head-mounted-device (HMD)), electronic clothing , an electronic bracelet, an electronic necklace, an electronic appcessory, an electronic tattoo, a smart mirror, and a smart watch.

"User status monitoring device" according to the present invention is a smartphone (smartphone), tablet PC (tablet personal computer), mobile phone (mobile phone), video phone, e-book reader (e-book reader), desktop PC (desktop personal computer) computer), a laptop personal computer (laptop PC), a netbook computer, a workstation, a server, a personal digital assistant (PDA), and a portable multimedia player (PMP).

The “electrocardiogram signal” according to the present invention includes a P wave, a Q wave, an R wave, an S wave, and a T wave. Each letter corresponds to a specific feature in a typical heartbeat. The "R-wave" portion is the spike most commonly associated with the time of a heartbeat.

R-waves can be grouped into “Q-waves” and “S-waves” to form what can be referred to as QRS complexes (or QRS-waves). The QRS complex is a group of waves (or waveforms) representing ventricular depolarization. The QRS-complex may include three distinct waves generated by the passage of cardiac electrical impulses through the ventricles, and may occur at the onset of each ventricular contraction.

In some surface electrocardiograms, the R-wave is an upward deflection, the first downward deflection represents the Q-wave, and the last downward deflection is the S-wave. Q and S waves can be weak and sometimes absent. After the QRS complex, there may be a T-wave indicating repolarization (or recovery) of the ventricles. Prior to the QRS complex, there may be a P-wave, which may be a positive deflection from the normal surface electrocardiogram produced by atrial excitation. The P-wave may represent the essential atrial event, atrial depolarization.

The electrocardiogram signal may be measured at the first location and the second location. When the first location is the neck, the heart waveform consisting of P wave, Q wave, R wave, S wave, and T wave is not measured at the first location. . As described above, if the heart waveform consisting of P wave, Q wave, R wave, S wave, and T wave cannot be measured at the first location, but an abnormal heart condition is suspected based on the ECG signal measured at the first location, the ECG This is to enable the bio-signal measuring device to be moved to a position where the signal is accurately measured.

According to the present invention, the “first location” refers to a first contacted part of the user's body, and the “second location” refers to an abnormal breathing condition and an abnormal heart condition based on the first biosignal measured at the first location. means a second position that is moved to accurately measure the suspected respiration signal or ECG signal when in doubt. For example, the "second position" can be the heart, where breathing signals can be accurately measured when abnormal breathing is suspected, and the ECG signal can be accurately measured when abnormal heart conditions are suspected. .

As described above, the present invention has an advantage of being able to monitor abnormal respiration and abnormal heart conditions of the user using the biosignals measured at the first and second positions.

1 is a network configuration diagram illustrating a system for monitoring a user's condition using a biosignal according to an embodiment of the present invention.

Referring to FIG. 1 , a user condition monitoring system using biosignals includes a biosignal measuring device 100 and a user condition monitoring device 200 .

In FIG. 1, for convenience of explanation, the biosignal measuring device 100 and the user state monitoring device 200 are separately illustrated and described. ) may be implemented as one component, and when the biosignal measuring device 100 and the user state monitoring device 200 are composed of one component, the functions described below may be executed in one component. .

The bio-signal measuring device 100 is a device that generates a bio-signal of a corresponding location when placed in a state of being in contact with a part of the user's body. The bio-signal measuring device 100 may be implemented as a wearable device that can be worn on a user's body.

When a current of a specific frequency flows in a state of being in contact with the first position of the user's body, the biosignal measuring apparatus 100 senses the biosignal of the first position.

In one embodiment, the bio-signal measuring device 100 senses a bio-signal at a corresponding location when a current of 100 μA or less flows at a specific frequency (32 kHz, 64 kHz, etc.) that is harmless to the human body.

The bio-signal measuring device 100 may be positioned in a first position while being connected to a part of the user's body according to a user's manipulation, and generate a first bio-signal at the first position to provide information to the user's condition monitoring device 200. can provide In this case, since the first position is a position where the ECG signal cannot be accurately measured, the P wave, Q wave, R wave, S wave, and T wave may not accurately exist in the ECG signal.

Therefore, when an abnormal heart condition is suspected by analyzing the ECG signal, the user's condition monitoring device 200 moves the contact position of the biosignal measuring device 100 from the first position to the second position where the ECG signal can be accurately measured. is to make it

In addition, the bio-signal measuring device 100 may move from a first position to a second position according to a user's manipulation, generate a second bio-signal at the second position, and provide the second bio-signal to the user's condition monitoring device 200. there is. At this time, the second position is a second position that is moved to accurately measure the suspected respiratory signal or electrocardiogram signal when an abnormal breathing condition or an abnormal heart condition is suspected based on the first biosignal measured at the first position. it means.

For example, the "second position" can be the heart, where breathing signals can be accurately measured when abnormal breathing is suspected, and the ECG signal can be accurately measured when abnormal heart conditions are suspected. .

The user condition monitoring device 200 is a device that monitors the user's abnormal breathing and abnormal heart conditions using biosignals received from different locations.

First, the user's condition monitoring device 200 monitors the first physiological signal (ie, the electrocardiogram signal and the breathing signal) received from the physiological signal measuring device 100 contacted at the first location to monitor the user's abnormal breathing and abnormal heart condition. to monitor In this case, the abnormal breathing may include tachypnea, hyperventilation, dry cough, wet cough, wheezing, and the like, and the abnormal heart condition may include tachycardia, arrhythmia, and the like.

However, a problem arises in the process of monitoring abnormal respiration by using the first physiological signal after the user's condition monitoring device 200 receives the first physiological signal from the biological signal measuring device 100 contacted at the first position.

That is, among the first physiological signals received from the physiological signal measuring device 100 in contact with the user's condition monitoring device 200 at the first position, the electrocardiogram signal is exactly P wave, Q wave, R wave, S wave, and T wave. Since it may not exist, it is possible to measure the heart rate using the interval from the R wave to the next R wave, but there is a problem in that it is difficult to measure the heart waveform (PQRST).

Therefore, the user's condition monitoring device 200 measures the heart rate and electrocardiogram using the interval from the R wave to the next R wave in the electrocardiogram signal among the first biosignal signals received from the biosignal measuring device 100 contacted at the first position. If an abnormal heartbeat pattern is recognized as a result of the analysis, an abnormal heart condition suspicious signal is generated.

In addition, the user's condition monitoring device 200 uses a period between inspiration and expiration in the first biosignal of the first biosignal received from the biosignal measuring device 100 in contact with the first position to determine the respiratory rate. Measurement is possible, but there is a problem that the accuracy of respiratory volume measurement is low.

Therefore, the user's condition monitoring device 200 determines the respiratory rate by using the period between inspiration and expiration in the respiration signal among the first physiological signals received from the physiological signal measuring device 100 contacted at the first position. is measured, and if an abnormal breathing pattern is recognized as a result of the measurement, an abnormal breathing state suspicious signal is generated.

As described above, when the user state monitoring device 200 generates a suspicious signal of any one of the abnormal heart condition suspected signal and the abnormal respiratory state suspected signal, after generating a notification instructing to change the position of the electrode, the electrode is removed by the user. It moves from position 1 to position 2.

At this time, the notification indicating the electrode position change may be implemented as voice guidance, warning light, warning sound, vibration, etc., and if there is a display unit in the user condition monitoring device 200 using biosignal, it can be displayed through the display. .

As described above, the second location may also be provided when a notification indicating a change in electrode location is generated. At this time, the user's condition monitoring device 200 provides different second positions according to the types of suspect signals so that the electrocardiogram signal or the respiration signal can be accurately measured.

In one embodiment, the user state monitoring device 200 provides a second location where the ECG signal can be accurately measured when an abnormal heart condition suspected signal is generated and an abnormal breathing state suspected signal is not generated, so that the ECG signal is accurately detected. to be measured

In another embodiment, the user state monitoring device 200 provides a second location where a breathing signal can be accurately measured when no abnormal heart condition suspected signal is generated and no abnormal respiratory state suspected signal is generated, thereby providing an electrocardiogram (ECG) signal. to be accurately measured.

In another embodiment, the user state monitoring device 200 provides a second location where the ECG signal and the respiration signal can be accurately measured when the abnormal heart condition suspicion signal and the abnormal breathing state suspicion signal are generated together, so that the ECG signal can be measured. ensure that the signal is accurately measured.

After the bio-signal measuring device 100 is moved from the first position to the second position by providing a notification indicating a change in electrode position along with the second position to be moved as described above, the bio-signal measuring apparatus 100 ), it is determined whether the position of the bio-signal measuring device 100 is a signal sensed at the second position using the second bio-signal.

In an embodiment, the user state monitoring device 200 compares the first bio-signal and the second bio-signal and determines whether the bio-signal measuring device has moved to the second position based on whether they are different. .

For example, the user state monitoring device 200 may determine whether the bio-signal measuring device has moved to the second position by comparing the first bio-signal and the second bio-signal in magnitude and alarm amount.

That is, when the first biosignal and the second biosignal are different, the user state monitoring device 200 determines that the biosignal measuring device has moved to the second position and stores the second biosignal.

2 is a flowchart for explaining an embodiment of a method for monitoring a user's condition using bio-signals according to the present invention.

Referring to FIG. 2 , the user state monitoring device 200 receives a first biosignal from the biosignal measuring device 100 in contact with the first position (step S210).

The user state monitoring device 200 analyzes the heart rate and the electrocardiogram using the electrocardiogram signal among the first biosignals (step S220). The user's condition monitoring device 200 analyzes the heart rate and the electrocardiogram, and when an abnormal heartbeat pattern is recognized as a result of the analysis (step S225), an abnormal heart condition suspected signal is generated (step S230).

In addition, the user's condition monitoring device 200 measures the respiratory rate using a cycle between inspiration and expiration in the breathing signal among the first biosignals (step S235), and as a result of the measurement, an abnormal breathing pattern is recognized. In this case (step S240), an abnormal breathing state suspicious signal is generated (step S245).

As described above, when the user state monitoring device 200 generates a suspicious signal of any one of the abnormal heart condition suspected signal and the abnormal respiratory state suspected signal, after generating a notification instructing to change the position of the electrode, the electrode is removed by the user. It moves from the first position to the second position (step S250).

At this time, the notification indicating the electrode position change may be implemented as voice guidance, warning light, warning sound, vibration, etc., and if there is a display unit in the bio-signal measuring device 100 using bio-signals, it can be displayed through the display. .

As described above, a notification indicating a change in electrode position is provided so that the position of the bio-signal measuring device 100 is moved from the first position to the second position, and then the second bio-signal is received from the bio-signal measuring device 100. , it is determined whether the position of the bio-signal measuring device 100 is a signal sensed at the second position by using the second bio-signal (step S255).

In one embodiment of step S225, the user state monitoring device 200 compares the first bio-signal and the second bio-signal and determines whether the bio-signal measuring device has moved to the second position according to whether they are different. can judge

That is, the user state monitoring device 200 determines that the bio-signal measuring device has moved to the second position if the first bio-signal and the second bio-signal are different, and if the first bio-signal and the second bio-signal are the same. It may be determined that the biosignal measurement device has not been moved to the second position.

If the user state monitoring device 200 determines that the bio-signal measuring device has moved to the second location, it receives and stores the second bio-signal from the bio-signal measuring device in contact with the second location (step S260).

3 and 4 are exemplary diagrams for explaining a user condition monitoring system using biosignals according to an embodiment of the present invention.

Referring to FIGS. 3 and 4 , when the bio-signal measuring device 100 is placed in a state of being in contact with a part of the user's body, it generates a bio-signal at the corresponding location. That is, the bio-signal measuring device 100 is located on the neck to simultaneously monitor abnormal breathing conditions and abnormal heart conditions, and measures respiration signals and electrocardiography (ECG or EKG) signals.

As shown in reference numeral (b) of FIG. 3, the bio-signal measuring device 100 applies a harmless current of 100 ㎂ or less to the neck electrode at a specific frequency (32 kHz, 64 kHz, etc.) is injected, the biopotential difference (Voltage) can be measured through the neck electrode.

Therefore, the user's state monitoring device 200 can detect a specific pattern such as inspiration, expiration, and cough in a breathing signal using the biopotential difference received from the biosignal measuring device 100. can

In addition, as shown in reference numeral (b) of FIG. 3, the bio-signal measuring device 100 measures an electrocardiography (ECG or EKG) signal related to the heart through the electrodes of the user's bio-signal measuring device 100, and Heart rate as well as tachycardia and arrhythmia can be detected through the LEAD I-like electrocardiogram signal, which is induced and measured as biopotential (V) in the skin.

5 is an exemplary diagram for explaining a process of monitoring a user's condition using bio-signals according to an embodiment of the present invention.

Referring to FIG. 5 , the user condition monitoring device 200 monitors the first biosignal (ie, the electrocardiogram signal and the respiration signal) received from the biosignal measuring device 100 in contact with the first position, ) can display the user's abnormal respiration and the abnormal heart condition of FIG. 5(b).

6 is a graph for explaining biosignals sensed at different locations according to the present invention.

Referring to FIG. 6 , the user state monitoring device 200 receives a first biosignal from the biosignal measuring device 100 in contact with a first location, and receives a biosignal from the biosignal measuring device 100 in contact with a second location. A second bio-signal is received. At this time, the electrocardiogram signal among the first physiological signals measured at the first location is shown in FIG. 6(a). However, since the first location is a location where the ECG signal cannot be accurately measured, the P wave, Q wave, R wave, S wave, and T wave may not accurately exist in the ECG signal of FIG. 6(a).

For this reason, among the first physiological signals received from the physiological signal measuring device 100 in contact with the user's condition monitoring device 200 at the first position, the electrocardiogram signal is a P wave, a Q wave, an R wave, a S wave, and a T wave. Since may not exist exactly, it is possible to measure the heart rate using the interval from the R wave to the next R wave, but there is a problem in that it is difficult to measure the heart waveform (PQRST).

Therefore, when an abnormal heart condition is suspected by analyzing the ECG signal, the user's condition monitoring device 200 moves the contact position of the biosignal measuring device 100 from the first position to the second position where the ECG signal can be accurately measured. is to make it

Among the second biosignals received from the biosignal measuring device 100 in contact with the second position, an electrocardiogram signal is shown in FIG. 6(b). Since the second position is a position where the ECG signal can be accurately measured, P, Q, R, S, and T waves of the ECG signal of FIG. 6(b) are accurately present.

Accordingly, the user state monitoring device 200 may measure the heart waveform PQRST by using the electrocardiogram signal among the second physiological signals received from the physiological signal measuring device 100 in contact with the second location.

Although described by the limited embodiments and drawings, the present invention is not limited to the above embodiments, and those skilled in the art can make various modifications and variations from these descriptions. Therefore, the spirit of the present invention should be grasped only by the claims described below, and all equivalent or equivalent modifications thereof will be said to belong to the scope of the spirit of the present invention.

100: biosignal measuring device
200: user status monitoring device

Claims (5)

a bio-signal measurement device that generates and provides a first bio-signal and a second bio-signal at a corresponding location when placed in contact with different locations of a user's body; and
When a signal suspected of abnormal state of the user is generated based on the first bio-signal from the bio-signal measuring device contacting the first position of the user's body, the second bio-signal measuring device contacting the second position of the user's body A biosignal is received, a differential signal of a second biosignal is generated based on the first biosignal, and at least one suspect signal of an abnormal heart condition suspected signal and an abnormal respiratory condition suspected signal is generated using the differential signal. When the electrode position is changed, after generating a notification instructing the electrode position change, the electrode is induced to move to the third position by the user.
User condition monitoring system using vital signs.
According to claim 1,
The user status monitoring device
Characterized in that the heart rate and the electrocardiogram are analyzed using the electrocardiogram signal among the first biosignals, and an abnormal heart condition suspected signal is generated when an abnormal heartbeat pattern is recognized as a result of the analysis.
User condition monitoring system using vital signs.
According to claim 1,
The user status monitoring device
Characterized in that the respiratory rate is measured using a cycle between inspiration and expiration in the respiratory signal among the first biosignals, and when an abnormal breathing pattern is recognized as a result of the measurement, an abnormal breathing state suspected signal is generated. doing
User condition monitoring system using vital signs.
According to claim 1,
When receiving the third bio-signal from the bio-signal measuring device, the first bio-signal, the second bio-signal, and the third bio-signal are compared to determine whether the bio-signal measuring device has moved to the third position. , characterized in that for storing the third bio-signal measured at the third position according to the determination result
User condition monitoring system using vital signs.
In the user status monitoring method executed in the user status monitoring device,
receiving a first bio-signal from a bio-signal measuring device that comes in contact with a first location of a user's body;
receiving a second bio-signal from a bio-signal measuring device contacting a second position of the user's body when the user's condition is suspected by analyzing the first bio-signal and a signal suspicious of the user's condition is generated;
generating a differential signal of a second biosignal based on the first biosignal;
generating a notification instructing an electrode position to be changed when at least one suspect signal among an abnormal heart condition suspected signal and an abnormal respiratory condition suspected signal is generated using the differential signal;
receiving a third bio-signal from the bio-signal measuring device in contact with the third position after the user moves the bio-signal measuring device to a third position in the user's body; and
characterized in that it comprises the step of storing the third bio-signal
User condition monitoring method using biosignal.