KR102650568B1 - User monitoring system using biosignal - Google Patents

Abstract

The user status monitoring system using biometric signals according to an embodiment of the present invention generates and provides a first biosignal and a second biosignal at the corresponding locations when the user is placed in contact with different locations on the user's body. When a signal suspicious of a user's condition is generated based on the first biological signal from the measuring device and the biological signal measuring device in contact with the first location on the user's body, the biological signal measuring device in contact with the second location on the user's body Receiving a second biological signal from, generating a differential signal of the second biological signal based on the first biological signal, and using the differential signal to detect at least one of a suspected abnormal heart condition signal and a suspected abnormal respiratory condition signal When a signal is generated, a notification indicating a change in electrode position is generated and then the user is prompted to move the electrode to a third position.

Description

User status monitoring system using biological signals and method of implementing the same {USER MONITORING SYSTEM USING BIOSIGNAL}

The present invention relates to a user status monitoring system using biosignals and a method of implementing the same. More specifically, a user status monitoring system using biosignals that can monitor the user status using biosignals measured at different locations; and It's about how to implement it.

Recently, as interest in health has increased, the demand for many people to manage their health by measuring and immediately checking their biometric information while carrying it is increasing. In response to these demands, portable biometric information measuring devices that can check one's health status anytime, anywhere are gaining attention.

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

This electronic device capable of measuring biometric information measures biometric information by attaching or contacting a plurality of electrodes to the corresponding part of the body depending on the type of biometric information, and analyzes the measured biometric information to determine various biometric indices and body composition of the provided subject. Through this, it has become possible to immediately check the health status.

Arrhythmia is a condition in which the heartbeat is too slow, too fast, or irregular, that is, the heartbeat is not normal. Atrial Fibrillation (AF) is one of these arrhythmias. It is a condition in which the atrium does not beat normally and each part is disordered and trembles slightly, resulting in a fast and irregular heartbeat.

Atrial fibrillation is one of the arrhythmias that occurs relatively frequently, and is the most common among arrhythmias that require treatment, accounting for approximately 33% of all arrhythmia-related hospitalized patients. Accurately predicting frequent atrial fibrillation at an early stage is of great medical significance.

If atrial fibrillation occurs, a condition in which the atrium fails to contract normally and trembles slightly, it can itself cause symptoms such as difficulty breathing or chest pain. However, in addition to the symptoms of atrial fibrillation itself, the probability of more serious and dangerous arrhythmias occurring increases, and the risk of various serious problems resulting from the inability of blood to be pumped out of the heart effectively due to atrial fibrillation also increases.

Accordingly, if atrial fibrillation can be accurately predicted, the possibility of preventing atrial fibrillation can be increased by considering various atrial pacing methods, which can help reduce hospitalization costs and patient pain.

Meanwhile, Korea Patent Publication No. 10-2017-0140998 is a portable smart band that records or monitors the user's emotional state and surrounding situation based on biological signals, surrounding situations, or the user's movements in response to body stimulation caused by external shocks, etc. and a monitoring system are disclosed.

The purpose of the present invention is to provide a user status monitoring system using biosignals that can monitor the user status using biosignals measured at different locations and a method of implementing the same.

In addition, the present invention measures respiratory signals and electrocardiogram signals by placing electrodes in a first position to simultaneously monitor abnormal respiratory conditions and abnormal cardiac conditions, and then accurately measures signals corresponding to the suspicious situations when a suspicious situation occurs. The purpose is to provide a user condition monitoring system using biological signals that allows electrodes to be moved to a second position and a method of implementing the same.

In addition, the present invention monitors the user's condition using biosignals, enabling accurate detection of abnormal respiratory conditions and abnormal heart conditions using a first biosignal measured at a first location and a second biosignal measured at a second location. The purpose is to provide a system and its execution method.

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

To achieve this purpose, the user status monitoring system using bio-signals is a bio-signal measuring device that generates and provides first and second bio-signals at different locations on the user's body when they are placed in contact with each other. and generating a notification instructing to change the electrode position when a signal suspicious of a user's condition is generated based on the first biosignal from a biosignal measuring device in contact with a first location on the user's body, and generating a notification instructing to change the electrode position, It includes a user status monitoring device that stores a second biological signal when it is received from a biological signal measuring device in contact with the location.

In addition, a user status monitoring method using biosignals to achieve this purpose includes generating a first biosignal by a biosignal measuring device in contact with a first location on the user's body and providing the first biosignal to a user status monitoring device, the user status When the monitoring device generates a signal suspicious of a user's condition based on the first biological signal, generating a notification instructing to change the electrode position, the biological signal measurement device is moved to a second location on the user's body by the user. Afterwards, the biological signal measuring device in contact with the second location generates a second biological signal and provides it to the user state monitoring device, and the user state monitoring device uses the first biological signal and the second biological signal to It includes monitoring the user's status.

According to the present invention as described above, there is an advantage that respiratory signals and electrocardiogram signals can be measured using biological signals measured at different locations.

In addition, according to the present invention, in order to simultaneously monitor abnormal respiratory 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.

Additionally, according to the present invention, there is an advantage that abnormal respiratory conditions and abnormal heart conditions can be accurately detected using the first biological signal measured at the first location and the second biological signal measured at the second location.

Figure 1 is a network configuration diagram to explain a user status monitoring system using biological signals according to an embodiment of the present invention.
Figure 2 is a flowchart to explain an embodiment of a method for monitoring user status using biological signals according to the present invention.
Figures 3 and 4 are exemplary diagrams to explain a user status monitoring system using biological signals according to an embodiment of the present invention.
Figure 5 is an exemplary diagram to explain a user status monitoring process using biological signals according to an embodiment of the present invention.
Figure 6 is a graph to explain bio-signals sensed at different locations according to the present invention.

The above-mentioned objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art 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 known technologies related to the present invention may unnecessarily obscure the gist 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 attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

“Biological signal measurement device” according to the present invention may be a mobile medical device, camera, or wearable device (e.g., smart glasses, head-mounted-device (HMD)), electronic clothing, etc. , it may include at least one of 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 includes smartphones, tablet personal computers, mobile phones, video phones, e-book readers, and desktop personal computers. It may include at least one of a computer, a laptop personal computer, a netbook computer, a workstation, a server, a personal digital assistant (PDA), and a portable multimedia player (PMP).

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

R-waves can be grouped with “Q-waves” and “S-waves” to form what can be called the QRS complex (or QRS-wave). The QRS complex is a group of waves (or waveforms) that indicate ventricular depolarization. The QRS-complex may include three distinct waves produced by the passage of the cardiac electrical impulse through the ventricles and may occur at the beginning of each ventricular contraction.

In some surface electrocardiograms, the R-wave is upwardly deflected, the first downward deflection represents the Q-wave, and the final 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. Before the QRS complex, there may be a P-wave, which may be a positive deflection from the normal surface electrocardiogram produced by excitation of the atria. The P-wave can represent atrial depolarization, an essential atrial event.

The above electrocardiogram signal can be measured at the first location and the second location. If the first location is the neck, the heart waveform consisting of the P wave, Q wave, R wave, S wave, and T wave is not measured at the first location. . As 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, ECG This allows the biosignal measurement device to be moved to a location where the signal is accurately measured.

According to the present invention, the “first location” refers to the first contact part of the user's body, and the “second location” refers to an abnormal respiratory condition and an abnormal heart condition based on the first biological signal measured at the first location. In case of suspicion, it means the second position to be moved so that the suspected respiratory signal or electrocardiogram signal can be accurately measured. For example, the “second site” could be the heart, where respiratory signals can be accurately measured if abnormal breathing is suspected, or it could be both hands, where electrocardiogram signals can be accurately measured if abnormal heart conditions are suspected. .

As described above, the present invention has the advantage of being able to monitor the user's abnormal breathing and abnormal heart condition using biological signals measured at the first and second positions.

Figure 1 is a network configuration diagram to explain a user status monitoring system using biological signals according to an embodiment of the present invention.

Referring to FIG. 1, a user state monitoring system using biological signals includes a biological signal measurement device 100 and a user state monitoring device 200.

In FIG. 1 , for convenience of explanation, the biological signal measuring device 100 and the user state monitoring device 200 are shown and described separately. However, according to the embodiment, the biological signal measuring device 100 and the user state monitoring device 200 ) may be implemented as one component, and if the biosignal measurement device 100 and the user status monitoring device 200 are comprised of one component, the functions described below may be executed in one component. .

The biosignal measuring device 100 is a device that generates biosignals of a location when placed in contact with a part of the user's body. This biological signal measurement device 100 may be implemented as a wearable device that can be worn on the user's body.

This biological signal measuring device 100 senses the biological signal at the first location when a current of a specific frequency is passed while in contact with a first location on the user's body.

In one embodiment, the biological signal measurement device 100 senses the biological signal at the 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.

This bio-signal measuring device 100 may be positioned in a first position while connected to a part of the user's body according to the user's operation, and generates a first bio-signal at the first position to be transmitted to the user condition monitoring device 200. can be provided. At this time, because 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 exactly exist in the ECG signal.

Therefore, when an abnormal heart condition is suspected by analyzing the electrocardiogram signal, the user condition monitoring device 200 moves the contact position of the biosignal measurement device 100 from the first position to a second position where the electrocardiogram signal can be accurately measured. The goal is to make it happen.

Additionally, the biosignal measuring device 100 may be moved from the first position to the second position according to the user's operation, and may generate a second biosignal at the second position and provide the biosignal to the user condition monitoring device 200. there is. At this time, the second position is a second position that is moved so that the suspected respiratory signal or electrocardiogram signal can be accurately measured when an abnormal respiratory condition or an abnormal cardiac condition is suspected based on the first biological signal measured at the first position. it means.

For example, the “second site” could be the heart, where respiratory signals can be accurately measured if abnormal breathing is suspected, or it could be both hands, where electrocardiogram signals can be accurately measured if abnormal heart conditions are suspected. .

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

First, the user condition monitoring device 200 monitors the first biosignal (i.e., electrocardiogram signal and respiration signal) received from the biosignal measurement device 100 contacted at the first location to determine the user's abnormal breathing and abnormal heart condition. monitor. At this time, abnormal breathing may include tachypnea, hyperventilation, dry cough, wet cough, wheezing, etc., and abnormal heart conditions may include tachycardia, arrhythmia, etc.

However, a problem occurs when the user status monitoring device 200 receives the first biological signal from the biological signal measurement device 100 contacted at the first location and then monitors abnormal breathing using the received first biological signal.

That is, the user condition monitoring device 200 determines that the electrocardiogram signal among the first biological signals received from the biological signal measurement device 100 contacted at the first location is exactly the P wave, Q wave, R wave, S wave, and T wave. Since it may not exist, it is possible to measure heart rate using the interval from one R wave to the next R wave, but there is a problem in that it is difficult to measure the heart waveform (PQRST).

Accordingly, the user status monitoring device 200 calculates 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 received from the biosignal measurement device 100 contacted at the first location. When an abnormal heart rate pattern is recognized as a result of the analysis, a signal to suspect an abnormal heart condition is generated.

In addition, the user condition monitoring device 200 determines the respiratory rate by using the period between inspiration and expiration in the respiratory signal among the first biological signals received from the biological signal measurement device 100 in contact with the first position. Although measurement is possible, there is a problem in that the accuracy of respiratory volume measurement is low.

Accordingly, the user condition monitoring device 200 determines the respiratory rate by using the period between inspiration and expiration in the respiratory signal among the first biological signals received from the biological signal measurement device 100 in contact with the first position. is measured, and if an abnormal breathing pattern is recognized as a result of the measurement, a signal to suspect an abnormal breathing condition is generated.

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

At this time, the notification instructing to change the electrode position can be implemented as voice guidance, warning light, warning sound, vibration, etc., and if a display unit is present in the user status monitoring device 200 using biological signals, it can be displayed through the display. .

As described above, when a notification indicating a change in electrode position is generated, the second position may also be provided. At this time, the user condition monitoring device 200 provides different second positions depending on the type of suspect signal so that the electrocardiogram signal or respiration signal can be accurately measured.

In one embodiment, the user condition monitoring device 200 provides a second location where the electrocardiogram signal can be accurately measured when a signal suspicious for an abnormal heart condition is generated and a signal suspicious for an abnormal respiratory condition is not generated, so that the electrocardiogram signal can be accurately measured. Make sure it is measured.

In another embodiment, the user condition monitoring device 200 provides a second location for accurately measuring a respiratory signal when a suspicious signal for an abnormal heart condition is not generated and a signal suspicious for an abnormal respiratory condition is not generated, thereby providing an electrocardiogram signal. Ensure that is measured accurately.

In another embodiment, the user condition monitoring device 200 provides a second location where the electrocardiogram signal and the respiratory signal can be accurately measured when a suspicious signal of an abnormal heart condition and a signal suspicious of an abnormal respiratory condition are generated together. Ensure signals are measured accurately.

After providing a notification instructing to change the electrode position along with the second position to be moved as described above so that the position of the biosignal measuring device 100 is moved from the first position to the second position, the biosignal measuring device 100 ), the second biological signal is used to determine whether the position of the biological signal measuring device 100 is a signal sensed at the second location.

In one embodiment, the user status monitoring device 200 may compare the first biological signal and the second biological signal and determine whether the biological signal measurement device has been moved to the second location based on whether they are different. .

For example, the user status monitoring device 200 may determine whether the biometric signal measuring device has been moved to the second location by comparing the size and alert level of the first and second biosignals.

That is, if the first biological signal and the second biological signal are different, the user state monitoring device 200 determines that the biological signal measurement device has moved to the second location and stores the second biological signal.

Figure 2 is a flowchart to explain an embodiment of a method for monitoring user status using biological signals according to the present invention.

Referring to FIG. 2, the user state monitoring device 200 receives a first biological signal from the biological signal measurement device 100 that is in contact with the first location (step S210).

The user condition monitoring device 200 analyzes the heart rate and electrocardiogram using the electrocardiogram signal among the first biological signals (step S220). The user condition monitoring device 200 analyzes the heart rate and electrocardiogram, and when an abnormal heart rate pattern is recognized as a result of the analysis (step S225), it generates a signal suspicious for an abnormal heart condition (step S230).

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

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

At this time, the notification instructing to change the electrode position can be implemented as voice guidance, warning light, warning sound, vibration, etc., and if a display unit is present in the biological signal measurement device 100 using biological signals, it can be displayed through the display. .

After providing a notification instructing to change the electrode position as described above so that the position of the bio-signal measuring device 100 is moved from the first position to the second position, a second bio-signal is received from the bio-signal measuring device 100. Then, it is determined whether the position of the biometric signal measuring device 100 is a signal sensed at the second location using the second biosignal (step S255).

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

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

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

Figures 3 and 4 are exemplary diagrams to explain a user status monitoring system using biological signals according to an embodiment of the present invention.

Referring to FIGS. 3 and 4 , when the biometric signal measuring device 100 is placed in contact with a part of the user's body, it generates biosignals at that location. That is, the biosignal measurement device 100 is located on the neck to simultaneously monitor abnormal respiratory conditions and abnormal cardiac conditions and measures respiration signals and electrocardiography (ECG or EKG) signals.

As shown in reference number (b) in FIG. 3, the biosignal measuring device 100 applies a current of 100㎂ or less, which is harmless to the human body, to the cervical electrode at a specific frequency (32kHz, When 64 kHz, etc.) is injected, biopotential difference (Voltage) can be measured through the cervical electrode.

Therefore, the user status monitoring device 200 can detect specific patterns such as inspiration and exhalation as well as cough in the respiratory signal using the biopotential difference received from the biosignal measurement device 100. You can.

In addition, as shown by reference number (b) in FIG. 3, the biosignal measurement device 100 measures the electrocardiography (ECG or EKG) signal related to the heart through the electrodes of the user biosignal measurement device 100, and measures the electrocardiography (ECG or EKG) signal from the heart. It is possible to detect not only heart rate but also tachycardia and arrhythmia through LEAD I-like electrocardiogram signals that are induced and measured as biopotentials (V) on the skin.

Figure 5 is an exemplary diagram to explain a user status monitoring process using biosignals according to an embodiment of the present invention.

Referring to FIG. 5, the user condition monitoring device 200 monitors the first biosignal (i.e., electrocardiogram signal and respiration signal) received from the biosignal measurement device 100 in contact with the first location, and monitors the first biosignal (i.e., electrocardiogram signal and respiration signal) as shown in FIG. 5(a). ) can display the user's abnormal breathing and abnormal heart condition in FIG. 5(b).

Figure 6 is a graph to explain biological signals sensed at different locations according to the present invention.

Referring to FIG. 6, the user state monitoring device 200 receives a first biological signal from the biological signal measurement device 100 in contact with the first location, and receives a first biological signal from the biological signal measurement device 100 in contact with the second location. A second biological signal is received. At this time, the electrocardiogram signal among the first biological signals measured at the first location is shown in FIG. 6(a). However, because 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 exactly exist in the ECG signal of FIG. 6(a).

For this reason, the user condition monitoring device 200 may determine that among the first biological signals received from the biological signal measurement device 100 in contact with the first position, the ECG signal is a P wave, a Q wave, an R wave, an S wave, and a T wave. Since may not exist exactly, it is possible to measure 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 electrocardiogram signal, the user condition monitoring device 200 moves the contact position of the biosignal measurement device 100 from the first position to a second position where the electrocardiogram signal can be accurately measured. The goal is to make it happen.

The electrocardiogram signal among the second biological signals received from the biological signal measurement device 100 in contact with the second location is shown in FIG. 6(b). Since the second position is a position where the ECG signal can be accurately measured, the ECG signal in FIG. 6(b) accurately contains P waves, Q waves, R waves, S waves, and T waves.

Accordingly, the user condition monitoring device 200 may measure the heart waveform (PQRST) using the electrocardiogram signal among the second biological signals received from the biological signal measurement device 100 in contact with the second location.

Although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above embodiments, and various modifications and variations can be made by those skilled in the art from these descriptions. Accordingly, the spirit of the present invention should be understood only by the scope of the claims set forth below, and all equivalent or equivalent modifications thereof shall fall within the scope of the spirit of the present invention.

100: Biosignal measurement device
200: User status monitoring device

Claims (5)

A biometric signal measuring device that, when placed in contact with different locations on the user's body, generates and provides a first biosignal and a second biosignal at those locations; and
When a current of a specific frequency flows while in contact with a first location on the user's body, the first biological signal at the first location is sensed, and the next R wave is generated from the R wave among the first biological signals measured at the first location. By analyzing the heart rate and electrocardiogram using the interval to the wave, a signal suspected of an abnormal heart condition is generated when an abnormal heart rate pattern is recognized, and the cycle between inspiration and exhalation in the respiratory signal among the first biological signals is used. By measuring the respiratory rate, if an abnormal breathing pattern is recognized, a signal suspected of an abnormal respiratory condition is generated, and if a signal suspected of an abnormal heart condition is generated and no signal suspected of an abnormal breathing condition is generated, an electrocardiogram signal can be accurately measured on both hands. Move to the corresponding second position, and if no abnormal heart condition suspicion signal occurs and no abnormal respiratory condition suspicion signal occurs, move to the third position corresponding to the heart where the respiratory signal can be accurately measured, and a user status monitoring device that compares the first to third biological signals and determines whether the biological signal measuring device has been moved to a different location depending on whether they are different. doing
User status monitoring system using biological signals.
delete delete delete In a user status monitoring method executed on a user status monitoring device,
When a biological signal measuring device is in contact with a first location on the user's body and a current of a specific frequency is passed, sensing the first biological signal at the first location and providing the information to the user's condition monitoring device;
When the user condition monitoring device recognizes an abnormal heart rate pattern by analyzing the heart rate and electrocardiogram using the interval from the R wave to the next R wave among the first biological signals measured at the first location, it generates an abnormal heart condition suspicion signal. do,
When the user condition monitoring device detects an abnormal breathing pattern by measuring the respiratory rate using the cycle between inspiration and expiration in the respiratory signal among the first biological signals, it generates a signal suspicious for an abnormal respiratory state,
allowing the user condition monitoring device to move to a second position corresponding to both hands where an electrocardiogram signal can be accurately measured when a suspicious signal for an abnormal heart condition is generated and a signal suspicious for an abnormal respiratory condition is not generated;
allowing the user condition monitoring device to move to a third location corresponding to the heart where a respiratory signal can be accurately measured when a suspicious signal of an abnormal heart condition is not generated and a signal suspicious of an abnormal respiratory condition is not generated; and
Comparing the first biological signal to the second biological signal and determining whether the biological signal measuring device has been moved to a different location depending on whether the biological signal measurement device is different from the first biological signal.
User status monitoring method using biological signals.