KR102408312B1 - Emergency monitoring system based on vital sign sensor - Google Patents

Abstract

The present invention relates to a vital sign sensor-based emergency monitoring system, comprising: a radar measuring device for non-contact sensing of biosignals including whether a user is present, active, respiration rate, heart rate, body temperature, and whether or not a fall is suspected in an indoor environment; a monitoring server that receives the bio-signals collected by the radar measuring device, detects the occurrence of an emergency for the user in the indoor environment, and provides a notification about the emergency; and a user terminal that interworks with each of the radar measuring device and the monitoring server through a dedicated application. Accordingly, the present invention can effectively detect the occurrence of a user's emergency by detecting a biosignal in an indoor environment such as a home or an office.

Description

EMERGENCY MONITORING SYSTEM BASED ON VITAL SIGN SENSOR

The present invention relates to a vital sign sensor-based emergency monitoring technology, and more particularly, to a vital sign sensor-based emergency that can effectively detect the occurrence of a user's emergency by non-contact sensing of biosignals in indoor environments such as homes and offices. It relates to a situation monitoring system.

When all information in a person's life is digitized and treated as life data, a vital sign, a signal that informs the body that he is alive, can be treated as one life data. Although the definition of vital signs differs depending on the field, there are four main indicators: 'pulse', 'respiration', 'body temperature' and 'blood pressure'. Humans take in oxygen to the lungs to sustain life, and the heart pumps oxygen to the cells of the body by means of blood. Because the movement of this organ generates heat and blood pressure, these four indicators can also be used as life data.

Most of the sensors that measure vital signs are 'wearable vital sign sensors' using IT technology. In general, it is a service that measures vital signs with a sensor and provides the data to users using an app as an IT technology. The biggest feature of wearable sensors is that users can continuously measure vital signs in their daily life just by attaching the sensor.

However, the wearable vital sign sensor is often expensive, and has a disadvantage of causing inconvenience while wearing it by a user. In particular, it is very cumbersome to mount such a wearable sensor even during sleep in order to measure vital signs during sleep.

In addition, in recent years, the problem of lonely death of the elderly living alone is emerging as a social problem, and monitoring of living information on patients with severe diseases in facilities for the disabled, elderly facilities, and security facilities is one of the main ways to solve this problem.

Therefore, the development of a method that can periodically check the presence or activity of a measurement target object (eg, a person such as an elderly person living alone) and effectively monitor biometric information without causing inconvenience to the measurement target object need.

Korean Patent Registration No. 10-1042565 (June 13, 2011)

An embodiment of the present invention is to provide an emergency monitoring system based on a vital sign sensor that can effectively detect the occurrence of a user's emergency by non-contact sensing of a biosignal in an indoor environment such as home and office.

An embodiment of the present invention is to provide an emergency monitoring system based on a vital sign sensor that can effectively monitor biosignals through a radar measuring device with improved signal selection capability and improved life information processing function.

An embodiment of the present invention is to provide an emergency monitoring system based on a vital sign sensor that can be utilized for life safety services by including a user's fall status and body temperature measurement values in bio-signal collection.

In embodiments, the vital sign sensor-based emergency monitoring system may include: a radar measuring device for non-contact sensing of biosignals including whether a user is present, active, respiration rate, heart rate, body temperature, and whether a fall is suspected in an indoor environment; a monitoring server that receives the bio-signals collected by the radar measuring device, detects the occurrence of an emergency for the user in the indoor environment, and provides a notification about the emergency; and a user terminal that interworks with each of the radar measuring device and the monitoring server through a dedicated application.

The radar measuring device transmits a radar signal into a sensor detection area formed in front and receives a reflected signal to measure the bio-signal, and includes a temperature sensor to measure body temperature among the bio-signals through the temperature sensor. measuring unit; and a support part for adjusting and supporting the angle so that the signal measuring part faces the user in a state in which the bottom surface is fixed.

In the radar meter, the user's respiration rate and activity detection area is formed at a distance of 5M from the front of the signal measuring unit, the user's body temperature detection area is formed at a distance of 1.5M to 2M, and the user at a distance of 1M to 2M A heart rate and fall detection area may be formed.

The radar measuring device may be installed on or on the side of a bed to detect a user's fall, and may measure the user's movement and body temperature in a surrounding area including the bed.

The monitoring server determines whether or not the user is present based on the biosignal, tracks whether the user is active according to the user's presence, and the movement data according to the user's movement is continuous for a predetermined first time. When it occurs, it is treated as the user's activity, and the amount of activity related to the user's movement is calculated and graded based on the frequency of processing related to the user's activity for a predetermined second time period, and the user's activity processing is performed In case of continuous failure for a third predetermined period of time, the presence or absence of the occupancy is updated according to the respiration rate and heart rate of the biosignal, and when the occupancy of the user continuously occurs beyond the fourth predetermined period according to the update A notification regarding the emergency may be transmitted to the user terminal.

The monitoring server detects the user's movement in real time, and when it stops after a sudden movement occurs briefly on the basis of peak-to-peak, it suspects a fall on the bed and immediately transmits a notification to the user terminal through wireless communication. Persistent distance or additional movement within range can be identified as departure from bed.

The monitoring server may detect a fall based on a difference in measured temperature due to a difference between a distance between the temperature sensor and the bed and a distance between the temperature sensor and the floor.

The monitoring server sets a normal range, a boundary range, and an emergency range for each of the respiration rate and heart rate, collects the distribution in the boundary range and the emergency range for each detection, and sets the pattern and rate for each range of the distribution. Accordingly, the grade of the emergency situation may be determined, and the notification may be differentially generated according to the grade.

The disclosed technology may have the following effects. However, this does not mean that a specific embodiment should include all of the following effects or only the following effects, so the scope of the disclosed technology should not be understood as being limited thereby.

The emergency monitoring system based on a vital sign sensor according to an embodiment of the present invention can effectively detect the occurrence of a user's emergency by non-contact sensing of a biosignal in an indoor environment such as home and office.

The emergency monitoring system based on a vital sign sensor according to an embodiment of the present invention can effectively monitor biological signals through a radar measuring device with improved signal selection capability and improved living information processing function.

The emergency monitoring system based on a vital sign sensor according to an embodiment of the present invention may include a user's fall status and a body temperature measurement value in the bio-signal collection, and may be utilized for a life safety service.

1 is a view for explaining an emergency monitoring system based on a vital sign sensor according to the present invention.
FIG. 2 is a view for explaining an embodiment of the radar measuring device of FIG. 1 .
FIG. 3 is a view for explaining information collected for each installation distance of the radar measuring device of FIG. 1 .
FIG. 4 is a view for explaining information collected for each installation location of the radar measuring device of FIG. 1 .
FIG. 5 is a view for explaining a functional configuration of the monitoring server of FIG. 1 .
6 is a flowchart illustrating an embodiment of an operation process of an emergency monitoring system according to the present invention.
7 is a diagram for explaining an embodiment of an interface provided by the monitoring server of FIG. 1 .

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

On the other hand, the meaning of the terms described in the present application should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected to” another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, "between" and "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood as including the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the embodied feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

In each step, identification numbers (eg, a, b, c, etc.) are used for convenience of description, and identification numbers do not describe the order of each step, and each step clearly indicates a specific order in context. Unless otherwise specified, it may occur in a different order from the specified order. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

The present invention can be embodied as computer-readable codes on a computer-readable recording medium, and the computer-readable recording medium includes all types of recording devices in which data readable by a computer system is stored. . Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like. In addition, the computer-readable recording medium is distributed in a computer system connected to a network, so that the computer-readable code can be stored and executed in a distributed manner.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms defined in general used in the dictionary should be interpreted as having the meaning consistent with the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present application.

1 is a view for explaining an emergency monitoring system based on a vital sign sensor according to the present invention.

Referring to FIG. 1 , the emergency monitoring system 100 may include a radar measuring device 110 , a monitoring server 130 , and a user terminal 150 .

The radar measuring device 110 may correspond to a vital sign sensor that is installed in a specific indoor space to detect a person present in the corresponding space and measure a biosignal. That is, the radar measuring device 110 may transmit a radar signal to an indoor space and then receive a reflected signal to collect various situational information about the corresponding indoor space.

The radar measuring device 110 may be connected to the monitoring server 130 and the user terminal 150 through a network, respectively, and if necessary, a plurality of radar measuring devices 110 may be installed and operated in the same indoor space.

In addition, the radar measuring device 110 may be implemented including an antenna and a receiver for transmitting/receiving a radar signal, an amplifier for signal amplification, a signal processor for signal processing, and the like. The radar measuring device 110 may use various radio signals for measuring biosignals, and may perform biosignal measuring operations using only a predetermined frequency by specifying a frequency band as necessary.

In one embodiment, the radar measuring device 110 may be implemented including a signal measuring unit and a support, and may be configured in various shapes and structures as necessary.

In an embodiment, the radar meter 110 may collect information about whether the user is present, active, suspected of a fall, respiration rate, heart rate, and body temperature information as a biosignal. More specifically, the radar measuring device 110 may extract various characteristic information such as signal strength, change amount, and change pattern from the received signal, and may determine various situation information for situation monitoring based on this. For example, the context information may include whether the user is present in the specific space, whether the user is active in the specific space, and whether the user falls from the bed. The context information may include the user's respiration rate and heart rate derived from the biosignal. In addition, the radar measuring device 110 may be implemented to include a temperature sensor, may measure the body temperature of a user existing in a specific space through the temperature sensor, and may include the measured body temperature of the user in context information. In this case, the temperature sensor measurement angle is 60° horizontally and vertically, respectively, the measurement range is 0°C to 80°C, and the accuracy may be ±2.5°C.

In one embodiment, the radar measuring device 110 may transmit the biosignal to the monitoring server 130 using a predefined communication protocol. In this case, the communication protocol may be defined as a biometric radar protocol. The type of data transmitted through the bio-radar protocol is MAC address, WiFi RSSI, occupancy, activity, respiration rate, heart rate, peak-to-peak (P to P), falls and body temperature. can indicate Here, falls are displayed as 0 (normal) and 1 (suspected fall), and the body temperature value can be transmitted every 5 seconds and can be displayed to one decimal place. For example, “#mac, rssi, 0, 0, 0, 0, 200, 0, 36.5$” means “mac, rssi, none, no activity, no breathing, no heart rate, waveform peak to peak 200, no fall” , body temperature 36.5”, and “#mac, rssi, 1, 0, 0, 0, 400, 1, 37.0$” is “mac, rssi, occupancy, inactivity, no breathing, no heart rate, waveform peak to peak 400” , suspected fall, body temperature 37”, “#mac, rssi, 1, 1, 12, 67, 400, 0, 36.5$” is “mac, rssi, occupancy, activity, respiration 12 BPM, heart rate 67 BPM, waveform” Peak to peak 400, no falls, body temperature 36.5”, and “#mac, rssi, 1, 1, 0, 0, 400, 1, 37.0$” indicates “mac, rssi, occupancy, activity, no breathing, heart rate” No indication, waveform peak to peak 400, suspected fall, body temperature 37”.

The monitoring server 130 may correspond to a device capable of monitoring a user's emergency situation based on the biosignal measured by the radar measuring device 110 . The monitoring server 130 may interwork with the gateway using various front-end functions, and store and manage information collected through the gateway in a database (DBMS).

In addition, the monitoring server 130 may provide a dedicated user interface for an administrator or a user, and the dedicated user interface may be provided through a web server operating on the monitoring server 130 . Meanwhile, the dedicated user interface may be provided through a dedicated application operating on the user terminal 150 .

The monitoring server 130 may be connected to the radar measuring device 110 and the user terminal 150 through a network, and may operate in connection with an external system to perform additional functions and operations as necessary. For example, when the monitoring server 130 detects a user's emergency, it may transmit a notification for disseminating the situation to a system operated by a police station, a fire station, a hospital, etc. for a quick response.

The user terminal 150 may correspond to a computing device capable of receiving various monitoring information and a notification according to the occurrence of an emergency through the emergency monitoring system 100 . The user terminal 150 may be implemented as a smart phone, a notebook computer, or a computer that is connected to the monitoring server 130 to operate, but is not limited thereto, and may be implemented in various devices such as a tablet PC.

In addition, the user terminal 150 may install and execute a dedicated program or application for interworking with the monitoring server 130 . Through this, the user terminal 150 may use various services provided by the monitoring server 130 .

In addition, the user terminal 150 may set parameters for interworking with the radar measuring device 110 through a dedicated WiFi module app. For example, the user terminal 150 may set an IP of a remote server, or may set an SSID and password for connection with the WiFi router.

FIG. 2 is a view for explaining an embodiment of the radar measuring device of FIG. 1 .

Referring to FIG. 2 , the radar measuring device 110 may be installed and operated in a specific space where an indoor environment is created, and may perform an operation of detecting a user existing in the space or measuring a biosignal from the detected user. have. That is, the radar measuring device 110 may include a configuration for measuring bio-signals from the user, and specifically includes a signal measuring unit 210 for measuring bio-signals and a support unit 230 supporting the signal measuring unit 210 . It can be implemented including

In FIG. 2 , the signal measuring unit 210 may be implemented such that the front part has a circular planar shape, and accordingly, it is possible to more accurately measure a biosignal in a predetermined space formed in front of the front part. That is, the signal measuring unit 210 may measure the biosignal as a result of receiving the reflected signal after transmitting the radar signal into the sensor sensing area formed in front. In an embodiment, the signal measuring unit 210 may radiate millimeter radio waves to the human body and extract a biosignal from the reflected signal. Here, the signal measuring unit 210 may use a 24 GHz micro Doppler that is harmless to the human body. For example, the sensor sensing area may include a virtual measurement plane formed at a distance of 5M from the front surface of the signal measuring unit 210 and defined by a horizontal distance and a vertical distance.

In addition, the signal measuring unit 210 may be coupled to the support unit 230 in a physical structure rotatable in a predetermined direction. The support 230 may be implemented including a bottom surface that is fixedly coupled to the ground, and is mutually coupled with the coupling member formed in the signal measuring unit 210 through the coupling member extending in the vertical direction from the bottom surface. can

Meanwhile, the radar measuring device 110 is not limited to the content illustrated in FIG. 2 , and may be implemented in various shapes and sizes depending on the measurement environment. In one embodiment, the radar measuring device 110 may be implemented to include a speaker for voice reproduction and a microphone for voice recording, and through this, a situation propagation operation according to the occurrence of an emergency may be performed. Here, the speaker may be implemented as an AI speaker capable of voice recognition. In this case, the user's help request voice may be recognized and an emergency situation may be notified through a call with the manager of the monitoring server 130 .

FIG. 3 is a view for explaining the collected information for each installation distance of the radar measuring device of FIG. 1 , and FIG. 4 is a view for explaining the collected information for each installation position of the radar measuring device of FIG. 1 .

3 and 4 , the radar measuring device 110 may perform an operation of detecting a user existing in a specific space or measuring a biosignal from the detected user according to an installation distance and location. For example, in FIG. 3 , when the radar measuring device 110 is installed on a wall or a table, a sensor detection area may be formed at a distance of 5M. A user's respiration rate and activity status detection area can be formed at a distance of 5M from the sensor detection area, a body temperature detection area can be formed at a distance of 1.5M to 2M, and a biosignal heart rate and fall occurrence detection can be performed at a distance of 1M to 2M area can be formed. The radar measuring device 110 may select a setting range of the detectable area. For example, in FIG. 4 , the radar measuring device 110 may determine the sensor position to direct the user when the table is installed. When the radar measuring device 110 is installed in a place other than a table, it is installed to be located 1M above the user's head or located on the ceiling, and the signal measuring unit 210 adjusts the angle to point between the user's face and chest to direct the biosignal can be precisely measured. In order to measure body temperature, the signal measuring unit 210 is installed at a distance of 2M from the user. The biosignals detectable for each installation location of the radar measuring device 110 are shown in Table 1 below.

[Table 1]

FIG. 5 is a diagram for explaining a functional configuration of the monitoring server in FIG. 1 .

Referring to FIG. 5 , the monitoring server 130 may include a biosignal receiver 510 , an emergency detection unit 530 , and a controller 550 .

The biosignal receiver 510 may receive the biosignal from the radar measuring device 110 and store it in a database. The bio-signal receiver 510 may classify and manage the received bio-signals for each type. For example, the biosignal receiver 510 may distinguish the biosignal in association with analysis of whether the user is present, active, respiration rate, heart rate, body temperature, and fall.

In an embodiment, the biosignal receiver 510 may provide various statistical information about the biosignal. The biosignal receiver 510 may visualize and display various statistical information derived from the biosignal, and may provide a graphical user interface (GUI) for this purpose.

The emergency situation detection unit 530 may detect whether an emergency has occurred to the user by analyzing the biosignal. When it is detected that an emergency has occurred to the user, the emergency detection unit 530 may operate according to an operating scenario for disseminating and responding to the situation. For example, an operating scenario may be defined based on occupancy criteria, respiration, heart rate, and body temperature, and may be applied in the process of disseminating a situation and responding.

In an embodiment, the emergency detection unit 530 determines whether the user is present based on the biosignal, tracks whether the user is active according to the user's presence, and transmits the movement data according to the user's movement to a predetermined first If it occurs continuously for a period of time, it may be treated as a user's activity, and an amount of activity related to the user's movement may be calculated and graded based on the processing frequency regarding the user's activity for a predetermined second time period.

More specifically, the emergency detection unit 530 may determine whether the person is within the radar range, ie, occupancy, based on the biosignal. In the case of an occupancy in which a user exists in a specific space, a first state in which the user's activity (movement) exists and a second state in which the user's activity does not exist may be divided. The emergency detection unit 530 may track whether the user is active in the occupancy state.

That is, when the movement data according to the user's movement is continuously generated for a first predetermined time, the emergency detection unit 530 processes it as a user's activity, and based on the processing frequency of the user's activity for the second predetermined time The amount of activity related to the user's movement can be calculated and graded. For example, when motion data is generated for 3 seconds or more, it may be processed as a user's activity, and if there is no motion for 10 seconds or more, the activity processing may be released. In addition, the amount of activity related to the user's movement may be graded into high, medium, and low, respectively, according to the frequency of activity processing measured at 1-hour intervals.

In one embodiment, the emergency detection unit 530 detects the user's movement (activity) in a designated space, that is, a sensor detection area, in real time through the radar measuring device 110 , and when a situation suspected of a fall occurs, the user A notification may be immediately transmitted to the terminal 150 . Falls are a major accident that occurs in bed and are fatal to the sick or the elderly. When the radar measuring device 110 is installed on the ceiling, the emergency detection unit 530 suspects a fall on the bed when a sudden movement occurs briefly based on the peak-to-peak and stops after a short period of time. Loss or additional movement can be identified as departure from bed. In an embodiment, when the radar measuring device 110 is installed on the ceiling of the bed, the emergency detection unit 530 may detect the occurrence of a fall based on a temperature difference between the bed and the floor around the bed. For example, when a person falls and lies on the floor, the distance from the temperature sensor of the radar measuring device 110 to the bed is different from the bed. do.

In an embodiment, the emergency detection unit 530 updates occupancy according to the respiration rate and heart rate of the biosignal, and updates on occupancy when the user's activity-related processing continues to fail for a predetermined third time period. Accordingly, when the occupancy of the user continuously occurs beyond the fourth predetermined time, an emergency notification may be transmitted to the user terminal 150 .

For example, when there is no continuous movement for 3 seconds or more, the emergency detection unit 530 may collect the user's heartbeat, respiration, and body temperature data. If there is respiration or respiration and heart rate and body temperature data, there is no movement of the user, but occupancy can be processed. Also, the emergency situation detection unit 530 may provide a notification regarding the occurrence of an emergency situation when the occupancy processing frequency continuously occurs for 3 hours or more. In this case, the emergency situation detection unit 430 may exclude the emergency situation occurrence range when the user is in the sleeping state in consideration of the time range.

In an embodiment, the emergency detection unit 530 may detect whether each of the respiration rate, heart rate, and body temperature is outside a preset normal range, and generate a notification when the corresponding detection count exceeds a preset reference number. . That is, the emergency detection unit 530 may monitor an under or exceeding state regarding normal ranges of respiration rate, heart rate, and body temperature as an event value transmission standard when an emergency occurs. The emergency detection unit 530 may monitor heart rate, respiration rate, and body temperature for 3 or 5 minutes because an intermediate activity situation may occur, measure the frequency of occurrence of heart rate and respiration rate out of the normal range, and change body temperature can be measured.

For example, biometric data is transmitted once every 1 or 3 seconds, so whenever the frequency of occurrence of a heart rate or respiration rate that is outside the normal range for 3 minutes or 5 minutes occurs 15, 30, or 60 times or more, it provides information on emergency situations. A notification may be sent.

In an embodiment, the emergency detection unit 530 sets a normal range (GREEN ZONE), a boundary range (BLUE ZONE), and an emergency range (RED ZONE) for each of the respiration rate and heart rate, and detects deviation from the normal range It is possible to collect distributions in the boundary range and emergency range for each range, determine the grade of an emergency according to the pattern and ratio for each range of the distribution, and differentially generate a notification according to the corresponding grade.

More specifically, for the respiratory rate and heart rate, the normal range, the boundary range, and the emergency range may be set as shown in Table 2 below.

[Table 2]

In addition, as shown in Table 2 above, the emergency detection unit 530 may individually set the normal range, the boundary range, and the emergency range related to the respiration rate and heart rate. Distributions can be accumulated and collected. The emergency detection unit 530 may calculate a distribution pattern and a distribution ratio for each range by independently tracking distributions in the boundary range and the emergency range. The emergency situation detection unit 530 may classify the emergency situation based on the distribution pattern for each range and the distribution ratio. For example, the grade of the emergency may be defined as high, medium, and low according to the severity of the emergency, and is not necessarily limited thereto, and may be subdivided into various grades and defined.

In an embodiment, the emergency situation detection unit 530 may build a learning model for performing emergency class classification by learning characteristic information about the distribution pattern and distribution ratio for each range. More specifically, the emergency detection unit 530 may generate a feature map for a distribution pattern for each range, and extract a feature vector from the feature map as feature information. Also, the emergency detection unit 530 may generate a feature vector related to a distribution ratio for each range, and may build a learning model by learning a distribution pattern for each range and a feature vector related to the distribution ratio as learning data.

In this case, the feature map for the distribution pattern for each range may be used independently, or may be used after being integrated into one feature map if necessary. The learning model may receive, as an input, characteristic information about a distribution pattern and a distribution ratio for each range, and generate a classification result regarding an emergency grade as an output. Accordingly, the emergency situation detection unit 430 may efficiently determine the grade situation level when the occurrence of an emergency situation is detected based on monitoring information regarding the respiration rate, heart rate, and body temperature through the learning model.

The controller 550 may control the overall operation of the monitoring server 130 , and manage a control flow or data flow between the biosignal receiver 510 and the emergency detection unit 530 .

6 is a flowchart illustrating an embodiment of an operation process of an emergency monitoring system according to the present invention.

Referring to FIG. 6 , the emergency monitoring system 100 detects the occurrence of an emergency situation of a user in a specific space through the monitoring server 130 based on the bio-signals collected by the radar measuring device 110 and sends a notification. can provide

At this time, the emergency monitoring system 100 may detect the user's bio-signal through the radar measuring device 110 (step S610), and may determine whether the user is present through the monitoring server 130 (step S630). . In addition, the situation monitoring system 100 may track whether the user is active through the monitoring server 130 (step S650), and may detect the occurrence of an emergency based on this (step S670).

Meanwhile, the situation monitoring system 100 may perform operations for situation response as well as situation propagation according to the occurrence of an emergency, and may utilize a predefined operating scenario for this purpose.

7 is a diagram for explaining an embodiment of an interface provided by the monitoring server of FIG. 1 .

Referring to FIG. 7 , the emergency monitoring system 100 can effectively detect the occurrence of an emergency of a user by analyzing the bio-signals collected by the radar measuring device 110 through the monitoring server 130 . In addition, the monitoring server 130 may provide monitoring information through the user terminal 150 , and the user terminal 150 may provide monitoring information through a dedicated interface.

7 may show an embodiment of a dedicated interface (GUI) 710 provided on the user terminal 150 . The dedicated interface 710 may correspond to a dedicated viewer that displays visualized information about a user's biosignal. For example, the dedicated interface 610 may be configured with a monitoring window regarding respiration rate, heart rate, body temperature, occupancy, activity, and falls, and a log window regarding data received through a biometric radar protocol. Here, the log window is IO(occupancy, 0 or 1), ACT(activity, 0 or 1), BR(breathing BPM, 12 ~ 30), HR(heart rate BPM, 55 ~ 120), P2P(occupancy, breathing, Log data consisting of P2P of heart rate), sensitivity, reference, fall (0 or 1), body temperature, and Cnt (time count) can be displayed at 3-second intervals.

In addition, the monitoring window can display respiration and heart rate BPM and body temperature data in real time along with results on occupancy and activity, and fall status. At this time, the user can check the occupancy, activity, or fall by looking at the displayed number. For example, in the case of an unattended state, occupancy is displayed as 0, which may mean that no person is present in the detection area. In the case of the occupancy state, occupancy is displayed as 1, which may mean that a person is present in the detection area. In addition, when detecting that a person has entered the sensing area, respiration, heart rate, BPM, and body temperature may be displayed after 30 seconds.

In addition, the dedicated interface 710 may provide a range setting function with respect to respiration and heart rate. In FIG. 7 , a function for specifically setting each range may be provided at the lower end of the portion in which the respiration and heartbeat BPM are displayed. For example, if the range of the respiratory BPM is set to 1 - 10, when the respiratory BPM is 11 or more or 0, it may be displayed in red, and an alarm (notification) may be transmitted along with it. If the heart rate BPM range is set to 60 - 85, when it is above 86 or below 59, it will be displayed in red and an alert may be delivered.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be done.

100: emergency monitoring system
110: radar meter 130: monitoring server
150: user terminal
210: signal measuring unit 230: support
510: biosignal receiver 530: emergency detection unit
550: control unit
710: dedicated interface

Claims (8)

a radar measuring device for non-contact sensing of biosignals including whether a user is present, active, respiration rate, heart rate, body temperature, and whether a fall is suspected in an indoor environment;
a monitoring server that receives the bio-signals collected by the radar measuring device, detects the occurrence of an emergency for the user in the indoor environment, and provides a notification about the emergency; and
A user terminal that interworks with each of the radar meter and the monitoring server through a dedicated application; Containing,
The monitoring server
Determining whether the user is present based on the bio-signal,
tracking the activity of the user according to the presence of the user,
If the movement data according to the user's movement is continuously generated for a predetermined first time, it is processed as the user's activity,
Calculating and grading the amount of activity related to the user's movement based on the processing frequency of the user's activity for a predetermined second time period,
If the process related to the user's activity fails continuously for a predetermined third time period, updating the presence or absence of the user according to the respiration rate and heart rate of the biosignal;
Vital sign sensor-based emergency situation monitoring system, characterized in that when the occupancy of the user continuously occurs beyond a fourth predetermined time according to the update, a notification regarding the emergency situation is transmitted to the user terminal.
According to claim 1, wherein the radar meter
a signal measuring unit that transmits a radar signal into a sensor detection area formed in front and receives a reflected signal to measure the biosignal, and includes a temperature sensor and measures body temperature among the biosignals through the temperature sensor; and
Vital sign sensor-based emergency monitoring system, characterized in that it comprises a; support for adjusting the angle so that the signal measuring unit is directed toward the user in a state in which the floor surface is fixed.
The method of claim 2, wherein the radar meter
The user's respiration rate and activity detection area is formed at a distance of 5M from the front of the signal measuring unit, the user's body temperature detection area is formed at a distance of 1.5M to 2M, and the user's heart rate and falls are formed at a distance of 1M to 2M A vital sign sensor-based emergency monitoring system, characterized in that a suspicious detection area is formed.
The method of claim 2, wherein the radar meter
In order to detect a user's fall, it is installed on or on the side of the bed and measures the user's movement and body temperature in the surrounding area including the bed.
delete The method of claim 4, wherein the monitoring server
It detects the user's movement in real time and, based on peak-to-peak, if a sudden movement occurs briefly and then stops, it is suspected as a fall on the bed, and a notification is immediately transmitted to the user terminal by wireless communication. Otherwise, it is continuously within the radar range Vital sign sensor-based emergency monitoring system, characterized in that if there is an extra movement or distance from the bed, it is classified as a departure from the bed.
The method of claim 6, wherein the monitoring server
Vital sign sensor-based emergency monitoring system, characterized in that it detects a fall based on a difference in measured temperature due to a difference in the distance between the temperature sensor and the bed and the distance between the temperature sensor and the bed.
According to claim 1, wherein the monitoring server
Set a normal range, a boundary range, and an emergency range for each of the respiration rate and heart rate,
collecting distributions in the boundary range and the emergency range for each detection,
Determining the grade of the emergency situation according to the pattern and ratio for each range of the distribution,
Vital sign sensor-based emergency monitoring system, characterized in that differentially generates the notification according to the grade.

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