KR20170064910A - Apparatus and Method for determining state of driver based on signals of blood flow - Google Patents

Apparatus and Method for determining state of driver based on signals of blood flow Download PDF

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KR20170064910A
KR20170064910A KR1020150170943A KR20150170943A KR20170064910A KR 20170064910 A KR20170064910 A KR 20170064910A KR 1020150170943 A KR1020150170943 A KR 1020150170943A KR 20150170943 A KR20150170943 A KR 20150170943A KR 20170064910 A KR20170064910 A KR 20170064910A
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driver
blood flow
signal
vehicle
abnormal
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KR101806631B1 (en
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김진권
이병준
이활리
류성숙
정호철
김삼용
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현대자동차주식회사
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0205—Specific application combined with child monitoring using a transmitter-receiver system
    • G08B21/0211—Combination with medical sensor, e.g. for measuring heart rate, temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/14—Central alarm receiver or annunciator arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
    • B60W2040/0872—Driver physiology

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Abstract

The present invention provides an apparatus and method for determining a driver's condition based on a blood flow signal to determine a driving risk condition using a blood flow signal and a vehicle signal in a driver's bio-signal and to provide appropriate measures and services for the determined situation.
The apparatus for determining driver's condition based on a blood flow rate signal according to an embodiment of the present invention includes a sensor unit for measuring a heartbeat signal or a blood flow signal of a driver while the vehicle is running, A travel pattern confirmation unit for determining whether the travel pattern is abnormal after the size of the blood flow signal is reduced and the reliability of the abnormal signal generated in the blood flow signal is confirmed, A response confirming unit for requesting a response to the driver when it is determined that there is an emergency, and a counterpart for performing emergency treatment according to the emergency situation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and method for determining a driver state based on a blood flow signal,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for determining a driver's condition based on a blood flow signal, and more particularly, to a technique for determining a driving condition using a blood flow signal and a vehicle signal.

The causes of traffic accidents may be related to various factors such as driver 's carelessness or sudden dangerous situation caused by road environment, but the proportion of accidents due to speeding or drowsiness driving is increasing year by year, It causes serious accidents that lead to accidents, and it is becoming a serious social problem.

In an effort to solve these problems, major automobile manufacturers continue to develop various new systems to support the safe operation of vehicles and apply them to vehicles.

On the other hand, most of the conventional drowsiness determination techniques are mainly used to determine whether or not drowsiness is caused by monitoring the driver's condition based on a camera or monitoring the pulse number of a driver through a sensor or the like.

That is, in the case of the former, the face of the driver is photographed through the indoor camera installed in the interior of the vehicle to determine the degree of opening / closing of the eyelids of the driver, the blinking, and the motion of the pupil.

In the latter case, it is judged based on the phenomenon that the driver's pulse number is reduced in the drowsy state.

Therefore, in the case of the above-described conventional technique, a complicated additional configuration such as a sensor for detecting the pulse number of the driver and an analysis algorithm or a camera for capturing the pupil movement, H / W for processing the image and S / W for analysis However, there is a problem of economic inefficiency, which is less effective than the cost of implementing the system, because only the abnormal operation due to drowsiness operation can be detected even if all of the above configurations are satisfied.

[Patent Literature] U.S. Patent No. 8593288.

The present invention provides an apparatus and method for determining a driver's condition based on a blood flow signal to determine a driving risk condition using a blood flow signal and a vehicle signal in a driver's bio-signal and to provide appropriate measures and services for the determined situation.

Other objects and advantages of the present invention will become apparent from the following description, and it will be understood by those skilled in the art that the present invention is not limited thereto. It is to be easily understood that the objects and advantages of the present invention can be realized by means of the means shown in the claims and combinations thereof.

The apparatus for determining driver's condition based on a blood flow rate signal according to an embodiment of the present invention includes a sensor unit for measuring a heartbeat signal or a blood flow signal of a driver while the vehicle is running, A travel pattern confirmation unit for determining whether the travel pattern is abnormal after the size of the blood flow signal is reduced and the reliability of the abnormal signal generated in the blood flow signal is confirmed, A response confirming unit for requesting a response to the driver when it is determined that there is an emergency, and a counterpart for performing emergency treatment according to the emergency situation.

In addition, the sensor unit may be mounted in a vehicle, or may be equipped with a wearable device or a camera capable of acquiring an image of a driver.

In addition, the determination unit may use an acceleration sensor, a contact detection sensor, or a vehicle sensor as an area in which the abnormal signal generated from the heartbeat signal or the blood flow signal is abruptly changed, lost, or reduced, The reliability can be determined by checking the volatility.

In addition, the travel pattern confirmation unit may determine whether the driver is over-steering or whether there is an abnormality in the travel pattern of the vehicle after determining the case of under-steering or sudden-deceleration.

In addition, the responding unit may perform emergency measures to automatically decelerate the vehicle, stop at the shoulder, connect with the medical institution, or recommend resting in accordance with the emergency situation.

Further, when the size of the blood flow signal is reduced but there is no abnormality in the traveling pattern, it is determined that the driver is intermittent arrhythmia or the driver is unlikely to drive, and recommendation of visit to the medical institution is recommended.

If there is an abnormality in the traveling pattern but there is a response in response to a driver's response request, it is determined that the intermittent arrhythmia of the driver or the driver is unreasonable to drive, and the driver can be alerted or relaxed .

In addition, when an abnormality occurs in the traveling pattern and the driver does not respond to the response request, the driver's arrhythmia is continued and the driver determines that the driver is difficult to continue driving. Can be automatically connected.

A method for determining a driver's condition based on a blood flow rate signal according to an embodiment of the present invention includes the steps of measuring a heart rate signal or a blood flow signal of a driver while the vehicle is traveling and determining whether an abnormality signal generated from the measured heart rate signal or blood flow rate signal is reliable Determining whether there is an abnormality in the traveling pattern of the vehicle, determining whether the traveling pattern is abnormal, requesting a response to the driver when it is determined that the vehicle is in an emergency situation, Including the step of performing emergency measures accordingly.

In the step of determining whether the measured heartbeat signal or the abnormality signal generated from the blood flow signal is reliable, a region in which an abnormal signal generated from the heartbeat signal or the blood flow signal is abruptly changed, A sensor, a contact detection sensor, a vehicle sensor, or by checking the self-variability of the heartbeat signal or the blood flow signal.

Further, in the step of determining whether or not the traveling pattern of the vehicle is abnormal, it is possible to determine whether the driver is over-steering or whether the traveling pattern of the vehicle is abnormal after determining the case of under-steering or sudden deceleration .

According to the emergency situation, it is possible to perform emergency measures to automatically decelerate the vehicle, stop the lane, connect with the medical institution, or recommend resting according to the emergency situation.

If there is an abnormality in the running pattern of the vehicle, a response is requested to the driver, and if there is no abnormality in the running pattern of the vehicle, the driver ends the driving, You may be asked to visit the office.

In addition, if there is a response from the driver, the driver can be requested for an alarm or a break.

In addition, if there is no response from the driver, the vehicle can be automatically decelerated, stopped at a lane, or subjected to emergency measures to connect with a medical institution.

The technology can use services designed to meet the driver's emergency situation using the blood flow signal.

In addition, the present technology can accurately determine the driving risk situation while the driver is driving using the blood flow signal, and can provide the service by judging beforehand whether or not the danger occurs.

FIG. 1 is a block diagram illustrating an apparatus for determining a driver's condition based on a blood flow signal according to an embodiment of the present invention. Referring to FIG.
2 is a view for explaining a method of determining a driver's condition based on a blood flow signal according to an embodiment of the present invention.
FIGS. 3 and 4 are graphs illustrating a method for determining a driver's condition based on a blood flow signal and a service providing method according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish it, will be described with reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. The embodiments are provided so that those skilled in the art can easily carry out the technical idea of the present invention to those skilled in the art.

In the drawings, embodiments of the present invention are not limited to the specific forms shown and are exaggerated for clarity. Although specific terms are used herein, It is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation of the scope of the appended claims.

The expression " and / or " is used herein to mean including at least one of the elements listed before and after. Also, the expression " coupled / connected " is used to mean either directly connected to another component or indirectly connected through another component. The singular forms herein include plural forms unless the context clearly dictates otherwise. Also, as used herein, "comprising" or "comprising" means to refer to the presence or addition of one or more other components, steps, operations and elements.

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

1 is a block diagram illustrating a heart rate signal-based driver condition determining apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a blood flow signal-based driver condition determination apparatus includes a sensor unit 100, a determination unit 110, a travel pattern verification unit 120, a response confirmation unit 130, and a correspondence unit 140.

The sensor unit 100 is a sensor capable of measuring the heartbeat or blood flow of a driver while the vehicle is running, and may be mounted in a vehicle, or may be a wearable device or a camera capable of acquiring images of a driver .

First, the sensor unit 100 mounted on the vehicle can be mounted on the steering wheel of the vehicle in the form of a light receiving part or a light emitting part to receive a heartbeat, a blood flow amount, or a vehicle signal.

Second, the sensor unit 100 in the form of a wearable device is worn by a driver and can be provided at a specific position in the entire body of the driver to measure heartbeat or blood flow.

Third, the sensor unit 100 of the camera type can measure the heartbeat or the blood flow volume by using the face color of the driver or the change of the face.

The determination unit 110 determines whether the abnormal signal (abnormal signal) generated from the heartbeat signal or the blood flow signal measured by the sensor unit 100 is reliable.

Specifically, an abnormal signal in a waveform provided in a heartbeat signal or a blood flow signal appears in a region where the signal rapidly changes, disappears or decreases. This abnormal signal will be described in detail in FIG.

In addition, the determination unit 110 may use an acceleration sensor, a contact detection sensor, a vehicle sensor, or an area of a heartbeat signal or a blood flow signal itself The reliability can be judged by checking the volatility and the like.

The reason why the size of the blood flow signal is rapidly reduced when the acceleration sensor provided in the vehicle or the wearable device is used is because the determination unit 110 determines that the size of the blood flow signal decreases according to the driver's movement, It can be determined whether or not the size of the blood flow signal according to the situation has decreased.

In addition, the reason why the size of the blood flow signal is rapidly reduced when the contact sensor such as the piezoelectric sensor is used is because the contact portion of the contact sensor has an abnormality in the size of the blood flow signal, It can be determined whether the size of the blood flow signal according to an emergency situation has decreased.

The reason why the size of the blood flow signal decreases sharply when the vehicle sensor is used is whether the size of the blood flow signal is decreased due to the operation of the vehicle or the operation of the driver, It can be determined whether the size of the signal has decreased.

That is, the determination unit 110 determines whether the driver has performed the switch operation including the steering angle, the steering torque, the turn signal, and the multi-function switch and the AVN apparatus before the amplitude of the blood flow signal rapidly decreases. It is possible to determine whether the size of the blood flow signal has decreased or the size of the blood flow signal according to the driver's emergency has decreased.

In addition, the determination unit 110 can check the self-variability of the blood flow signal. Here, the self-variability of the blood flow signal is larger than the normal blood flow signal due to the noise generated due to the contact failure of the sensors of the sensor due to the motion of the driver, and the baseline fluctuates greatly. The determination unit 110 may determine whether the size of the blood flow signal is decreased due to the self-variability of the blood flow signal, or whether the size of the blood flow signal is decreased due to the driver's emergency.

The traveling pattern verifying unit 120 determines whether the traveling pattern is abnormal after the driver's blood flow signal is reduced in size and the reliability of the abnormal signal generated in the blood flow signal is confirmed.

For example, the travel pattern verifying unit 120 determines whether there is an abnormality in the travel pattern by judging whether the driver is over-steering in order to turn the direction of the vehicle suddenly, under-steering, sudden-deceleration or the like.

If it is determined that there is an abnormality in the travel pattern in the travel pattern confirmation unit 120, the response confirmation unit 130 determines that the situation is an emergency and requests a response to the driver.

The coping unit 140 may perform emergency measures such as warning the driver, recommending the driver to relax, auto-decelerate the vehicle, stop the lane, or connect with the medical institution or the like in accordance with the emergency situation.

That is, the response unit 140 can perform the emergency action according to the response of the response confirmation unit 130, and the response unit 140 can alert the driver, The counterpart 140 can automatically decelerate the vehicle or automatically connect to a stop or a medical institution when there is no response.

For example, if the size of the driver's blood flow signal is reduced and the reliability of the blood flow signal is not abnormal, if there is no abnormality in the driving pattern of the vehicle, the driver's intermittent arrhythmia It is determined that the response unit 140 recommends visiting the medical institution after the operation is completed.

However, in the case where the driver's response is requested when the driver's response is requested, the driver's intermittent arrhythmia or the driver's motion is detected It is determined that there is some difficulty in driving. Therefore, the response unit 140 alerts the driver and recommends a rest.

In addition, when the size of the driver's blood flow signal is reduced and the reliability of the blood flow signal is not abnormal, an abnormality occurs in the driving pattern of the vehicle. It is determined that it is difficult to continue the operation, so that the coping unit 140 automatically decelerates the vehicle, stops at the shoulder of the vehicle, or automatically connects the medical institution.

2 is a view for explaining a method of determining a driver's condition based on a blood flow signal according to an embodiment of the present invention.

Referring to FIG. 2, the blood flow signal-based driver condition determining apparatus obtains a blood flow signal and a vehicle signal (S11).

Next, the blood flow rate signal-based driver condition determination device determines whether the size of the blood flow signal is reduced (S13).

Next, the blood flow rate signal-based driver condition determination device determines whether or not the abnormality signal of the blood flow volume is reliable (S15).

Next, the blood flow rate signal-based driver condition determining device confirms that the size of the blood flow signal is reduced, determines whether the blood flow signal is reliable, and then determines whether the traveling pattern of the vehicle is abnormal (S17).

Next, the blood flow rate signal-based driver state determination device requests a response to the driver (S19) if there is an abnormality in the driving pattern of the vehicle (that is, when it is determined that the driving pattern is abnormal).

However, if there is no abnormality in the traveling pattern of the vehicle (that is, if it is determined that the traveling pattern is normal), the driver ends the driving and is requested to visit the medical institution (S21).

Next, if there is a response from the driver, the driver is solicited or requested for an alarm or rest (S23).

However, if there is no response from the driver, the blood flow rate signal-based driver condition determination device performs emergency measures including automatic deceleration of the vehicle, stopping the vehicle at the shoulder, or connection with the medical institution (S25).

FIGS. 3 and 4 are graphs illustrating a method for determining a driver's condition based on a blood flow signal and a service providing method according to an embodiment of the present invention.

3, a blood flow signal waveform, a blood pressure (BP) signal waveform, and an electrocardiogram (EKG) waveform according to a photoplethysmogram (PPG) If a premature ventricular contraction (PVC) segment (A) is detected in the blood flow signal waveform, the driver may judge that it is an emergency situation.

However, the device for determining the driver's condition based on the blood flow signal has a problem that the blood flow signal is suddenly decreased because it is determined that the driver is in an emergency state and thus the blood flow is decreased or the driver simply moves or the blood flow is temporarily decreased due to the movement of the vehicle can do.

Referring to FIG. 4, the variation of the blood flow signal generated due to the contact failure (B) of the sensor unit due to the driver's movement may show a sudden change in the waveform of the constant blood flow, or the baseline C of the blood flow signal may be greatly changed have.

As described above, the present technique can utilize a service designed to meet the emergency situation of the driver by using the blood flow signal.

In addition, the present technology can accurately determine the driving risk situation while the driver is driving using the blood flow signal, and can provide the service by judging beforehand whether or not the danger occurs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Various modifications and variations may be made without departing from the scope of the appended claims.

Claims (15)

A sensor unit capable of measuring a heartbeat signal or a blood flow signal of the driver while the vehicle is running;
A determination unit for determining whether the measured heartbeat signal or an abnormal signal generated from the blood flow signal is reliable;
A traveling pattern verifying unit for determining whether the traveling pattern is abnormal after the size of the blood flow signal is reduced and the reliability of the abnormal signal generated in the blood flow signal is confirmed;
A response confirmation unit for requesting a response to the driver when it is determined that there is an emergency in the traveling pattern; And
A counterpart for performing emergency measures in accordance with the emergency situation,
Wherein the blood flow signal-based driver condition determining device includes: The method according to claim 1,
The sensor unit includes:
The apparatus is provided in a form mounted on a vehicle, or in the form of a camera capable of acquiring images of a wearable apparatus or a driver. The method according to claim 1,
Wherein,
A region in which an abnormal signal generated from the heartbeat signal or the blood flow signal is abruptly changed, disappears or reduced is detected by using an acceleration sensor, a contact detection sensor, or a vehicle sensor, or by verifying the volatility of a heartbeat signal or a blood flow signal itself, Based on the blood flow rate signal. The method according to claim 1,
The traveling pattern verifying unit,
Wherein the controller determines whether the vehicle is over-steered, under-steered, or decelerating, and then determines whether the traveling pattern of the vehicle is abnormal. The method according to claim 1,
Wherein,
Based on the emergency situation, emergency measures for automatically decelerating the vehicle, stopping at the shoulder, connecting with the medical institution, or recommending rest are performed. The method according to claim 1,
Wherein the controller determines that the intermittent arrhythmia of the driver or the driver is unlikely to be operated when the size of the blood flow signal is reduced but there is no abnormality in the traveling pattern and recommends the visit to the medical institution. Device. The method according to claim 1,
When an abnormality occurs in the travel pattern but the driver's response is requested, the driver is judged to be an intermittent arrhythmia or a situation where the driver is uncomfortable to drive, and a warning is given to the driver or a rest is recommended Blood flow signal based driver status determination device. The method according to claim 1,
If an abnormality occurs in the traveling pattern and the driver does not respond when a response is requested, it is determined that the driver's arrhythmia persists and the driver is in a state in which it is difficult for the driver to continue driving. Wherein the blood flow signal-based driver condition determining device is connected to the blood flow signal-based driver condition determining device. Measuring a driver's heartbeat signal or blood flow signal during driving of the vehicle;
Determining whether the measured heartbeat signal or an abnormal signal generated from the blood flow signal is reliable;
Determining whether the traveling pattern of the vehicle is abnormal;
Determining whether there is an abnormality in the traveling pattern and requesting a response to the driver when it is determined that the vehicle is in an emergency; And
Performing emergency measures according to the emergency situation
And determining a driver's condition based on the blood flow signal. The method of claim 9,
Determining whether the abnormal heart rate signal or the abnormality signal generated from the blood flow rate signal is reliable,
The area where the abnormal heart rate signal or the abnormality signal generated from the blood flow rate signal is abruptly changed, disappears or is reduced is detected by using an acceleration sensor, a contact detection sensor, a vehicle sensor, or by checking the self-variability of the heart rate signal or the blood flow rate signal, And determining a state of the driver based on the blood flow signal. The method of claim 9,
In the step of determining whether or not the traveling pattern of the vehicle is abnormal,
Determining whether the driver is over-steered, under-steering or decelerating; and determining whether the driving pattern of the vehicle is abnormal or not. The method of claim 9,
In the emergency action according to the emergency situation,
And performing emergency measures for automatically decelerating the vehicle, stopping at the shoulder, connecting with a medical institution, or recommending a rest according to the emergency situation. The method of claim 9,
In the step of determining whether or not the traveling pattern of the vehicle is abnormal,
Further comprising a step of requesting a response to the driver when the traveling pattern of the vehicle is abnormal, and if the traveling pattern of the vehicle is not abnormal, the driver terminates the driving and receives a request for visiting the medical institution Based driver condition determination method. 14. The method of claim 13,
And if the driver has a response, the driver receives a request for an alarm or a rest. 14. The method of claim 13,
And performing emergency measures to automatically decelerate the vehicle, stop at the shoulder, or connect with a medical institution if the driver does not respond.

KR1020150170943A 2015-12-02 2015-12-02 Apparatus and Method for determining state of driver based on signals of blood flow KR101806631B1 (en)

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KR20190035558A (en) 2017-09-26 2019-04-03 충남대학교산학협력단 The system and the method for recognizing driver's condition of multimodal learning
US11787408B2 (en) 2017-11-03 2023-10-17 Hl Klemove Corp. System and method for controlling vehicle based on condition of driver

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