KR20230082129A - Method and system for notifying driver of cardiac arrest using heart rate sensor - Google Patents

Abstract

The present invention relates to a method and system for notifying a driver of cardiac arrest using a heart rate sensor, and more particularly, to a method for preventing an accident by detecting a driver's body abnormality or cardiac arrest while driving.
To this end, the driver's cardiac arrest notification system of the present invention is fastened on a seat belt of a vehicle, and includes a heart rate measurement module having a built-in heart rate measurement sensor for measuring the driver's heart rate; and a driver terminal that receives the heart rate of the driver from the heart rate measurement module and compares the received heart rate with a set heart rate to determine whether the driver's heart rate condition is a normal heart rate state.

Description

Method and system for notifying driver of cardiac arrest using heart rate sensor

The present invention relates to a method and system for notifying a driver of cardiac arrest using a heart rate sensor, and more particularly, to a method for preventing an accident by detecting a driver's body abnormality or cardiac arrest while driving.

As of 2020, 24.37 million vehicles are registered in Korea. While automobiles provide convenience to modern people, many accidents occur due to automobiles. As of last year, there were 100,000 traffic accidents, and among them, about 2,000 patients suffered from sudden cardiac arrest on the highway. To this end, technology to prevent accidents by monitoring the driver's condition is continuously being developed.

In general, a driver's condition monitoring device is a device capable of checking driver's carelessness or drowsiness by photographing and analyzing the driver's face, state, posture, etc. using a camera. In the driver state monitoring device, a predetermined lighting device is mainly provided together with the camera to facilitate camera shooting even at night or in a dark environment.

However, checking the driver's condition only with the image taken by the camera can cause deterioration due to changes in the light environment while driving, image defect due to foreign substances in the camera lens, inability to check part of the driver's face, and driver's condition not recognized due to the change in the driver's posture. There is a problem in that the same error cannot be properly responded to and unconditionally treated as a recognition error.

In addition, in the case of unconditionally processing as a recognition error, there is a problem in that a user cannot know what kind of problem causes a recognition error, so that an appropriate response to the recognition error cannot be made.

Drivers are always exposed to accidents caused by cardiac arrest among the above situations, and the existing 'method of providing cardiac arrest emergency rescue application' is an application supported only to users using wearable devices, so drivers who do not use wearable devices cannot use it. there is

Korean Patent Registration No. 10-2149175 (Title of Invention: Data-based Accident Detection and Emergency Response Service System and its Processing Method) Korean Patent Publication No. 2018-0061462 (Title of Invention: Apparatus and Method for Controlling Vehicle Using Driver Biometric Signal and Vehicle Information)

An object to be solved by the present invention is to propose a method for detecting a driver's cardiac arrest situation in advance.

Another problem to be solved by the present invention is to propose a method of notifying a driver of a cardiac arrest situation to the outside.

Another problem to be solved by the present invention is to propose a method of preventing an accident by notifying the driver when there is a high possibility of a cardiac arrest situation occurring to the driver.

Another problem to be solved by the present invention is to propose a method of easily measuring heart rate without a driver's separate manipulation.

To this end, the driver's cardiac arrest notification system of the present invention is fastened on a seat belt of a vehicle, and includes a heart rate measurement module having a built-in heart rate measurement sensor for measuring the driver's heart rate; and a driver terminal that receives the heart rate of the driver from the heart rate measurement module and compares the received heart rate with a set heart rate to determine whether the driver's heart rate condition is a normal heart rate state.

The driver's cardiac arrest notification system according to the present invention has an effect of preventing accidents caused by cardiac arrest of the driver by determining in real time whether the driver's cardiac arrest is abnormal or not.

In addition, the present invention can prevent the driver from dying due to cardiac arrest by notifying a nearby medical institution when the driver's cardiac arrest occurs. In addition, the present invention has an advantage of drawing the driver's attention when the heart rate sensor cannot accurately measure the driver's heart rate or by changing the location of the heart rate measurement module to accurately measure the driver's heart rate.

1 illustrates a driver's cardiac arrest notification system using a heart rate sensor according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a user terminal according to an embodiment of the present invention.
3 is a block diagram showing the configuration of a heart rate measurement module according to an embodiment of the present invention.
4 is a flowchart illustrating an operation performed between a heart rate measurement module and a driver terminal according to an embodiment of the present invention.

The foregoing and additional aspects of the present invention will become more apparent through preferred embodiments described with reference to the accompanying drawings. Hereinafter, these embodiments of the present invention will be described in detail so that those skilled in the art can easily understand and reproduce them.

1 illustrates a driver's cardiac arrest notification system using a heart rate sensor according to an embodiment of the present invention. Hereinafter, a cardiac arrest notification system for a driver using a heart rate sensor according to an embodiment of the present invention will be described in detail with reference to FIG. 1 .

Referring to FIG. 1 , a driver cardiac arrest notification system 100 using a heart rate sensor includes a heart rate measurement module 110 , a driver terminal 120 , an external server 130 and a driving unit 140 . Of course, other configurations other than the above configuration may be included in the driver cardiac arrest notification system 100 using the heart rate sensor proposed in the present invention.

The heart rate measurement module 110 includes a heart rate measurement sensor capable of measuring a heart rate and a communication module capable of communicating with the driver's terminal 120 . In relation to the present invention, the communication module performs Bluetooth communication with the driver terminal 120 .

The heart rate measurement module 110 is fastened to a seat belt, and the heart rate measurement module is located on the driver's chest through a series of operations in which the driver fastens the seat belt. When the driver fastens the seat belt, the heart rate measurement module 110 measures the driver's heart rate. The heart rate measurement module 110 normally enters a sleep mode, and when a driver fastens a seat belt, enters an active mode to measure the driver's heart rate.

A process of entering the heart rate measurement module 110 from the sleep mode to the active mode or from the active mode to the sleep mode will be described later. That is, when the heart rate measurement module 110 always maintains an active mode, the power of the built-in battery is unnecessarily consumed.

To this end, the heart rate measurement module 110 may enter the active mode in various ways. For example, an active mode may be entered using a slide switch or a tact switch. That is, the mode can be mutually switched using a button having an ON/OFF function.

In addition, any one of the Bluetooth module or the heart rate sensor may always maintain an on state. When the heart rate sensor is always in the ON state, when the heart rate sensor measures the heart rate more than the set number of times (eg 5 times), it gives an ON signal to the Bluetooth module (communication module), and when the Bluetooth module is ON, the connection to the driver terminal is established. You can try. When the Bluetooth module is always in the ON state, when communication with the driver terminal is connected (pairing procedure is in progress), a signal is given to the heart rate sensor to turn the heart rate sensor ON. As described above, according to the present invention, power consumption of the battery can be minimized by keeping only one of the heart rate sensor and the communication module in an ON state.

The heart rate measurement module 110 includes a battery, and the battery supplies power to each component constituting the heart rate measurement module including a heart rate measurement sensor and a communication module.

The driver's terminal 120 communicates with the heart rate measurement module 110 and receives the heart rate of the driver at regular intervals from the heart rate measurement module 110 . In relation to the present invention, the period for receiving the driver's heart rate may be differently set according to the driver's age, health condition, or driver's fatigue. To elaborate, the period may be variously set in consideration of the driving time of the driver.

The driver terminal 120 determines the driver's dangerous state according to the provided heart rate of the driver. When the driver's heart rate is equal to or less than the set heart rate, the driver terminal 120 outputs it to the outside to call the driver's attention.

The driver terminal 120 notifies the external server 130 when the driver's heart rate is equal to or less than the set heart rate. The external server 130 may be at least one of a medical institution server, a public institution server, and a communication institution server. When the driver's heart rate is equal to or less than the set heart rate, the driver's terminal 120 notifies the external server 130 so that the driver can prevent an accident due to cardiac arrest or the like.

Of course, the driver's terminal 120 may notify a user terminal of a third party other than the external server 130.

The external server 130 communicates with the driver terminal 120 and receives the driver's heart rate information from the driver terminal 120 . The external server 130 provides a signal requesting to stop driving to the driver's terminal when the driver's heart rate is equal to or less than the set heart rate. In addition, the external server 130 checks the point where the driver is driving so that the medical institution can dispatch to the site. In addition, the external server 130 monitors the driver's heart rate to monitor whether the driver's heart has stopped.

The driving unit 140 controls driving of the seat belt or the heart rate measurement module so that the heart rate measurement module is positioned on the driver's chest. To this end, the driving unit 140 is formed on the heart rate measurement module fastened to the seat belt or on the seat belt.

The heart rate measurement module 11 has a built-in pressure sensor and measures the pressure applied by the driver by the seat belt. Since the heart rate measurement sensor cannot accurately measure the driver's heart rate when the measured pressure is less than the set pressure, the pressure sensor notifies the driving unit of this.

The driving unit 140 formed on the seat belt pulls the seat belt so that the seat belt adheres to the driver. That is, the driving unit 140 keeps the seat belt in close contact with the driver's chest at all times. In addition, the driving unit 140 formed on the heart rate measurement module 110 inflates the inside so that the heart rate measurement sensor adheres to the driver. When the inside of the heart rate measurement module 110 is inflated, the heart rate measurement sensor adheres closely to the driver.

In addition, the location of the heart rate measurement module on the seat belt is different depending on the driver. To this end, the present invention forms a driving unit on the heart rate measurement module, and the driving unit moves up and down on the seat belt. That is, the heart rate measurement module moves up and down on the seat belt according to the position of the driver's chest.

As described above, the present invention measures the driver's heart rate using the heart rate measurement module formed on the seat belt, and when the measured heart rate is below the set heart rate, the driver's attention is alerted or notified to an external server to prevent the driver's cardiac arrest. prevent accidents caused by

2 is a block diagram showing the configuration of a driver terminal according to an embodiment of the present invention. Hereinafter, a configuration of a driver terminal according to an embodiment of the present invention will be described in detail using FIG. 2 .

Referring to FIG. 2 , the driver terminal 120 includes a communication module 120a, a control module 120e, a storage module 120b, a power module 120c, and an output module 120d. Of course, other configurations other than the above configuration may be included in the driver terminal proposed in the present invention.

The communication module 120a is divided into a transmission module and a reception module, and communicates with a heart rate measurement module or an external server. Of course, as described above, the communication module 120a communicates with a user terminal of a third party. The communication module 120a receives information about the driver's heart rate measured by the heart rate sensor from the heart rate measurement module. The communication module 120a transmits that the driver's heart rate is equal to or less than the set heart rate to the external server. The communication module 120a transmits a period for providing heart rate to the heart rate sensor. Of course, the heart rate measurement module transmits a sudden change in heart rate to the driver's terminal even within the set period. The communication module 120a attempts pairing using stored unique information when the heart rate measurement module approaches within a set distance.

The storage module 120b stores information required to drive the driver's terminal. The storage module 120b stores unique information about the heart rate measurement module. The storage module 120b stores the driver's heart rate received from the heart rate measurement module, and also stores a set heart rate to be compared with the driver's heart rate. The set heart rate can be set in various stages (levels). That is, by storing at least two set heart rates, the driver's dangerous state can be determined in various ways.

The power module 120c supplies power for the operation of each component constituting the driver's terminal. The power module 120c may be configured as a module in the form of a constant power source or a battery. In addition, the power module 120c may be configured in a chargeable form.

The output module 120d may be configured in the form of a speaker, a vibration module, or a display module, and may output a sound through a speaker, a vibration output through a vibration module, or a display module to arouse the driver's attention.

In addition, the driver's attention may be directed to a speaker or a display module installed in the vehicle. That is, the driver's terminal is connected to the vehicle and can call the driver's attention using a speaker or display module of the connected vehicle.

The control module 120e controls the operation of each component (or module) constituting the driver's terminal. The control module 120e compares the set heart rate and the driver's heart rate to determine the driver's heart rate condition, and if the driver's heart rate condition is in a dangerous state, controls to notify the outside. The dangerous state of the driver's heart rate is when the driver's heart rate is less than the set heart rate or the driver's heart rate changes rapidly. When the change in the driver's heart rate is rapid, the difference between the lowest heart rate and the highest heart rate within a set time is greater than a set value.

If an abnormality occurs in the driver's heart rate, the control module 120e requests an external server to be notified of it or uses the output module 120d to call the driver's attention. In addition, the control module 120e may control to notify the third party's user terminal.

As such, the driver's terminal proposed in the present invention compares the driver's heart rate with the set heart rate to determine the driver's condition, and when the driver is in a dangerous state, it notifies the outside world. Of course, the present invention has been described as recognizing a driver's dangerous state in a driver terminal, but is not limited thereto. That is, the heart rate measurement module can determine whether the driver is in a dangerous state, and in this case, the heart rate measurement module stores information about the set heart rate.

3 is a block diagram showing the configuration of a heart rate measurement module according to an embodiment of the present invention. Hereinafter, the configuration of the heart rate measurement module according to an embodiment of the present invention will be described in detail with reference to FIG. 3 .

Referring to FIG. 3 , the heart rate measurement module 110 includes a heart rate measurement sensor 110a, a communication module 110b, a control module 110e, a storage module 110c, a driving unit 140, and a power module 120d. Of course, other components than the above configuration may be included in the heart rate measurement module proposed in the present invention. Also, FIG. 3 illustrates a case in which the driving unit is included in the heart rate measurement module.

As described above, the heart rate measurement module is fastened to the seat belt to measure the driver's heart rate.

The heart rate sensor 110a measures the heart rate of the driver in close contact. The heart rate sensor 110a measures the driver's heart rate in various forms. For example, the heart rate measurement sensor 110a measures the heart rate at set intervals or when it enters an active mode.

The communication module 110b is composed of a transmission module and a reception module, and communicates with the driver's terminal. The communication module 110b transmits the measured heart rate to the driver's terminal. Of course, the communication module 110b may transmit the heart rate to the driver's terminal only when the measured heart rate is equal to or less than the set heart rate. The communication module 110b performs a pairing procedure when the driver's terminal approaches within a set distance.

The storage module 110c stores information necessary to drive the heart rate measurement module. The storage module 110c stores the set heart rate and the driver's heart rate measured by the heart rate sensor 110a. The storage module 110c stores information obtained by comparing the set heart rate and the driver's heart rate, and can accumulate and manage it if necessary. The storage module 110c stores driver information on the vehicle. This is extracted from the unique information of the user terminal approaching the vehicle, and driver information can be stored from the extracted unique information.

The power module 110d supplies power for the operation of each component constituting the heart rate measurement module. The power module 110d may be configured as a module in the form of a constant power source or a battery. In addition, the power module 110d may be configured in a rechargeable form.

The control module 110e controls the operation of each component (or module) constituting the heart rate measurement module. The control module 110e compares the set heart rate and the driver's heart rate to determine the driver's heart rate condition, and if the driver's heart rate condition is in a dangerous state, controls to notify the driver's terminal. The dangerous state of the driver's heart rate is when the driver's heart rate is less than the set heart rate or the driver's heart rate changes rapidly. When the change in the driver's heart rate is rapid, the difference between the lowest heart rate and the highest heart rate within a set time is greater than a set value.

When an abnormality occurs in the driver's heart rate, the control module 110e requests the driver's terminal to be notified of it or calls the driver's attention using an output module (not shown). To this end, the heart rate measurement module may constitute an output module including a speaker.

The drive unit 140 moves up and down on the seat belt. That is, it moves up and down on the seat belt so that the heart rate measurement module is located at the driver's chest. In addition, the driving unit 140 inflates the inside so that the heart rate sensor can be closely attached to the driver's chest. By expanding the inside of the heart rate sensor as described above, the heart rate measurement module adheres to the driver's chest and measures the driver's heart rate.

In relation to the present invention, various methods are required in which the heart rate sensor for measuring the driver's heart rate is in close contact with the driver's chest. In particular, if the heart rate sensor does not measure the driver's heart rate while the driver starts driving the vehicle, plan is required

That is, when the driver starts driving the vehicle, the heart rate sensor should measure the driver's heart rate. It happens that there is no In this case, a case where the heart rate sensor cannot measure the driver's heart rate because the heart rate sensor is not in a normal position will be described.

When the driver starts driving the vehicle, the heart rate measurement module is notified that the driver has started driving the vehicle using various routes. For example, the driver's terminal is connected to the vehicle through communication before driving the vehicle. The driver's terminal connected to the vehicle through communication provides information about this to the heart rate measurement module, and the heart rate measurement module recognizes that the driver starts driving the vehicle through communication with the driver's terminal. In addition, the heart rate measurement module may be notified that the driver starts driving the vehicle through communication with the vehicle. In addition, the heart rate measurement module may be notified that the driver is driving the vehicle in various ways.

The heart rate measurement module calls the driver's attention in various forms such as voice output using an output module when the driver's heart rate is not measured by the heart rate sensor even though the driver is driving the vehicle. In addition, the heart rate measurement module may request to call the driver's attention using the driver's terminal or the vehicle.

4 is a flowchart illustrating an operation performed between a driver terminal and a heart rate measurement module according to an embodiment of the present invention. Hereinafter, an operation performed between the driver terminal and the heart rate measurement module according to an embodiment of the present invention will be described in detail using FIG. 4 .

In step S400, the heart rate measurement module receives notification from the driver terminal that the driver is preparing for driving or driving the vehicle.

In step S402, the heart rate measurement module measures the driver's heart rate at set intervals or in real time, and transmits the measured heart rate to the driver's terminal.

In step S404, the driver terminal compares the transmitted heart rate with the stored heart rate to determine whether the driver's heart rate is normal.

In step S406, if the driver's heart rate is not normal, the driver's terminal calls the driver's attention using the output module, and transmits information indicating that the driver's heart rate is not normal and location information of the driver's terminal to an external server. do.

In step S408, the driver terminal continues to call the driver's attention until the vehicle operation is stopped, and continuously requests the driver to stop driving the vehicle.

As described above, the present invention measures the driver's heartbeat, requests the driver to stop driving if the driver's heartbeat is not in a normal state, and notifies the driver's condition to an external server, thereby preventing the occurrence of an accident in advance.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. .

100: driver cardiac arrest notification system
110: heart rate measurement module 120: driver terminal
130: external server 140: driving unit

Claims (7)

A heart rate measurement module fastened on a seat belt of a vehicle and having a built-in heart rate sensor for measuring a driver's heart rate; and
The driver's cardiac arrest notification system, characterized in that it comprises a driver's terminal that receives the driver's heart rate from the heart rate measurement module, and compares the received heart rate with a set heart rate to determine whether the driver's heart rate condition is a normal heart rate state.
The method of claim 1, wherein the heart rate measurement module,
Heart rate sensor for measuring the driver's heart rate;
a communication module for performing communication with the driver's terminal; and
A driver's cardiac arrest notification system comprising a; driving unit moving on the seat belt.
The method of claim 2, wherein the heart rate measurement module,
Information that the driver is preparing for driving or driving is received from the driver terminal or the communication module built into the vehicle,
The driver's cardiac arrest notification system, characterized in that if the heart rate sensor does not detect the driver's heartbeat while the driver is preparing for driving or driving, outputs a warning sound to the outside.
The method of claim 3, wherein the heart rate measurement module,
When the heart rate sensor does not detect the driver's heartbeat while the driver is preparing for driving or driving, the driver's cardiac arrest notification system characterized in that the heart rate sensor moves in the driver's direction by inflating the inside so that it adheres to the driver.
The method of claim 4, wherein the heart rate measurement module,
A driver's cardiac arrest notification system, characterized in that it maintains a sleep mode at normal times and enters an active mode when the driver is preparing to drive or is in a driving state.
The method of claim 5, wherein the heart rate measurement module,
A pressure sensor for measuring the pressure with which the seat belt presses the driver,
The driver's cardiac arrest notification system, characterized in that for driving the driving unit when the pressure measured by the pressure sensor is less than a set value.
The method of claim 1, wherein the driver terminal,
If the received heart rate of the driver is less than the set heart rate, vehicle location information and driver information are transmitted to an external server;
A driver's cardiac arrest notification system characterized by calling the driver's attention using an output module.

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