KR101693708B1 - Head Support - Google Patents

Abstract

According to an embodiment of the present invention, a head support is mounted on a headrest (10) to detect and determine a state of a driver, and comprises: an air cushion unit (200) having an air cushion (201) filled with air; a plurality of markers (30) arranged and installed on one surface in the air cushion (201) by a prescribed method; a photographing device (40) to collect a marker image photographing a change of the markers (30) changing in response to a contact state and a movement of the driver and the air cushion (201); and a processor unit (50) to perform a function to process the marker image to generate application information. The head support includes the state of the driver or various convenience functions.

Description

Head Support {Head Support}

The present invention relates to a head support for analyzing or determining the state of a driver at the time of operation. More specifically, the head support includes an air cushion portion, an imaging device, a marker, a processor portion, a mounting portion (60) And more particularly to a head support for analyzing a change pattern by photographing a change of a marker according to a contact state and analyzing or determining the state of a driver to provide information.

In the case of traffic accidents, drowsiness driving accounts for 10 ~ 20% of all traffic accidents and 20 ~ 30% of highway accidents. Generally, the driver stopped the car to prevent sleepy driving and the driver took a rest. However, when the driver was unable to take a break in time, most of them continued to drive while feeling drowsy. That is, when the driver suddenly suffers, there is a problem in that the driver's vision is not secured and the sleepy driving leads to a traffic accident. In addition, since the driver himself could not judge the degree of fatigue, he could not measure the intensity of the stimulus to be applied to the body according to the degree of fatigue.

Therefore, when the driver is drowsy during driving, the methods of avoiding drowsiness by ingesting outside air or sleeping medicine by opening the window of the car are also performed when the driver can not recognize the drowsiness state by himself I could not. As a result, the drowsiness driving state has been inevitably continued. This has posed a problem in that it threatens not only the driver who is driving the drowsy driver but also other drivers and pedestrians.

Most of the studies for preventing the drowsiness operation are performed by analyzing the behavior of the driver (for example, blinking of eyes) through the camera and judging whether or not the driver is driving the drowsy according to the state, and outputting an alarm .

A driving judging unit for judging whether the vehicle is moving forward or not in Korean Patent No. 10-1386823 entitled "2-step drowsiness driving prevention device through operation, face, eye, mouth shape, A drowsiness judgment unit for judging whether or not the user is sleeping, a warning unit for sending a warning to the user, and a controller for controlling the upper travel judgment unit and the photographing unit, the drowsiness judgment unit and the alarm unit. In the driving preventing apparatus, the travel judging unit receives the current position coordinate information of the vehicle from the GPS terminal, compares the current position coordinate information with the position coordinate information of the previous few seconds, judges whether the vehicle is in the forward running state, Only when the vehicle is running forward, it is judged whether or not the driver is moving forward, facial, And a second step of judging whether or not the execution of the sleepiness is completed. In the second step of determining whether or not the sleepiness of the first stage is determined, A two-step drowsiness driving prevention device is provided that determines whether a user is in a drowsy driving state only when it is determined that there is an action,

Korean Patent No. 10-1386823

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a drowsiness prevention technique of the prior art, which provides a driver's drowsiness operation through a facial photographing so as to provide a first problem in which accuracy is remarkably low, The second problem is that it can not provide a convenient function, and the third problem that the price is expensive and inconvenient in the installation of the device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

An air cushion portion 200 having an air cushion 201 filled with air therein, the air cushion portion 200 having an air- A plurality of markers 30 arranged on the inner surface of the air cushion 201 in a predetermined manner and a plurality of markers 30 changing in accordance with the contact state and movement of the driver and the air cushion 201, An imaging device (40) for collecting the photographed marker image, and a processor (50) for processing the marker image and generating the application information as application information.

The air cushion 200 of the head support of the present invention may further include a shape-retaining frame 202 for retaining the shape of the air cushion 201.

The head support according to the present invention further comprises a function of connecting the headrest (10) and the head support of the head support of the present invention.

Further, the mounting portion 60 of the head support of the present invention may be characterized in that the image pickup device 40 is provided inside.

In addition, the processor unit 50 of the head support of the present invention may further include a storage unit 51 for storing reference data to be compared with a marker image in order to generate application information.

In addition, the head support of the head support of the present invention may further include an interface unit 80 for alerting the driver to one or more methods selected from visual, tactile, olfactory, and auditory methods of application information .

In addition, the interface unit 80 of the head support of the present invention may further include a bone conduction speaker 81 for warning the driver of the condition of the driver.

Further, the mounting portion 60 of the head support of the present invention can be detachably attached to the headrest 10 and the air cushion portion 200.

The mounting portion 60 of the head support of the present invention further includes a cushioning portion 70 for flexibly adjusting the distance between the air cushion 201 and the headrest 10 and preventing the driver's neck from being injured. can do.

In addition, the cushioning portion 70 of the head support of the present invention may include a spring.

In addition, the head support of the head support of the present invention may further include a sensing unit 90 for sensing the temperature and humidity inside the vehicle.

In addition, the processor unit 50 of the head support of the present invention may store the reference data in the storage unit 51 as normal pattern information.

In addition, the processor unit 50 of the head support of the present invention alerts when receiving a marker image deviating from the stored normal pattern information.

In addition, the processor unit 50 of the head support of the present invention may store the reference data in the storage unit 51 in the form of abnormal pattern information.

In addition, the processor unit 50 of the head support of the present invention may be configured to alarm when receiving a marker image matching the stored abnormal pattern information.

In addition, the reference data of the head support of the present invention may be continuously updated using application information.

In the head support installation method of the present invention, air is introduced into the air cushion 201, the air cushion unit 200 is connected to the mounting unit 60, and the mounting unit 60 is mounted on the headrest 10 And a connecting portion connected to the connecting portion.

In the method of operating the head support according to the present invention, the step of contacting the driver with the air cushion 201, the step of loading the reference data with the head support, and the step of moving the plurality of markers 30 The marker image is captured by the imaging device 40 and the marker image is transmitted to the processor unit 50. The processor unit 50 converts the marker image into the marker image, Processing the application information into the application information by comparing and analyzing the reference data with the reference data, processing the application information and transmitting the application information to the interface unit 80 at the judgment of the processor unit 50, And alarming the driver of the vehicle.

In addition, the method of operating the head support of the present invention may further include the step of utilizing the application information to update the reference data.

The head support mounted on the headrest 10 of the present invention for sensing and determining the state of the driver includes an air cushion unit 200 having an air cushion 201 filled with air, A plurality of markers 30 arranged in a predetermined manner on an inner surface of the air cushion 201 and a plurality of markers 30 photographing a change in a plurality of markers 30 changing in correspondence with the contact state and movement of the driver and the air cushion 201, And a processor unit 50 for processing the marker image and generating the marker image as application information. The drowsiness prevention system includes the head support.

According to the embodiment of the present invention, it is possible to collect information on the contact state between the driver and the air cushion 201 to obtain a first effect of accurately determining whether or not the driver is sleeping, a driver's posture correction A second effect that can provide functions such as hands-free operation, and a third effect that the method is easy and inexpensive in installation of a device.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a schematic diagram of a head support structure of the present invention.
2 is a schematic view showing an embodiment of the internal structure of the head support of the present invention.
3 is a schematic view showing one embodiment of the internal structure of the head support of the present invention.
4 is a schematic view showing one embodiment of the use of the head support of the present invention.
5 (a) is a schematic diagram showing an embodiment of an initial arrangement of a plurality of markers of the head support of the present invention.
FIG. 5B is a schematic diagram showing an embodiment of an arrangement state in which a plurality of markers of the head support of the present invention are changed according to the contact state of the driver. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

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

The head support mounted on the headrest 10 for sensing and determining the state of the driver includes an air cushion unit 200, a plurality of markers 30, an imaging device 40 for collecting marker images, a processor unit 50, An interface unit 80, and a mounting unit 60 as main components.

Hereinafter, each of the main components will be described in detail.

The air cushion unit 200 may further include a shape retaining frame 202 for retaining the shape of the air cushion 201. The shape retaining frame 202 may also function to allow the image capturing apparatus 40 to be easily fixed in one embodiment in which the image capturing apparatus 40 is provided inside the air cushion 201. [

The material of the shape-retaining frame 202 is preferably made of a flexible material.

The air cushion 201 can inject and discharge air in filling the air, so that the driver can adjust the volume of the air cushion 201 by adjusting the amount of the air for convenience. Also, since the shape-retaining frame 202 is flexible, the shape of the air cushion 201 is not formed in an abnormal state even if the volume of the air cushion 201 is adjusted according to the neck thickness of the driver.

A plurality of markers 30 are arranged on the inner surface of the air cushion 201 in a predetermined manner. The shape of the marker 30 is preferably circular, but is not limited thereto.

In addition, although it is preferable to use a material capable of transmitting a certain amount of light in the material of the air cushion 201, other materials can be used for comfort. However, in this case, a light source is necessary for photographing the inside of the air cushion 201. The light source may be further provided in an image capturing apparatus described later. The light source does not exclude those with the same brightness and brightness as the LED.

There is a problem such as the contamination of the air cushion 201 by using a cover or a film that covers the air cushion 201. [

The positions of the plurality of markers 30 which change when the driver touches the air cushion 201 are changed, and the image pickup device 40 captures the change of position and collects the marker image so that the change of the pattern can be confirmed . At this time, when the imaging device 40 photographs the plurality of markers 30, the size and shape of the plurality of markers 30 do not substantially change macroscopically. However, the imaging device 40 is fixed, The image captured by the imaging device 40 may be displayed as the shape and size of the plurality of markers 30 change as the position of the marker 30 changes. 5, the positions of the plurality of markers 30 are changed, and the angle of the image sensor 40 is changed to confirm that the marker image changes.

The processor unit 50 can substantially perform the function of storing the collected marker images and patterns in the storage unit 51 and analyzing the state of the driver in connection with the imaging apparatus 40. The imaging apparatus 40 When the marker image according to the driver's contact state is transmitted to the processor unit 50, the photographed marker image is collected, and pattern changes of the marker image are stored and utilized as reference data. Alternatively, the state of the driver can be compared or analyzed by comparing the change in the pattern of the marker image with the standard data stored in the manufacturer. The application information generated by comparison or analysis can also be stored and used.

The storage unit 51 in which information is stored will be described later.

For example, when the driver starts driving, the head support is operated. At this time, the position of the plurality of markers 30 changes due to the contact between the driver and the air cushion 201, and the imaging device 40 photographs the same. The photographed marker images are collected to confirm the pattern change of the marker image. By storing the pattern change, the reference data for the drowsiness operation is obtained. When the driver's contact state changes and the position of the plurality of markers 30 changes from the reference data, the processor unit 50 determines that the driver is in the drowsy driving state, stores the application information in the application information, Thereby alerting the driver to prevent drowsiness.

In addition, the processor unit 50 can analyze or determine the state of the driver more finely according to day and night pattern change of the marker image. Accordingly, the accuracy of judgment can be improved.

The processor unit 50 may further include a storage unit 51 for storing a marker image and application information. The processor unit 50 may collect marker images and store the marker images as reference data, or may store reference data stored in the manufacturer as normal pattern information and store them in the storage unit 51. [ Accordingly, a signal can be given to the interface unit 80 in order to alert the user when the marker image is out of the normal pattern information.

In addition, the processor unit 50 may store the reference data in the storage unit 51 in the form of abnormal pattern information. At this time, the processor unit 50 can alert if a marker image matching the stored abnormal pattern information is received.

Hereinafter, embodiments of reference data will be described in detail.

≪ Example 1 >

For the reference data, the manufacturer provides the head support to a person who is engaged in a long-time job, stores the marker image in the head support, collects the marker image, stores the standardized reference data in advance in the head support storage unit 51 The head support can be used to determine how a plurality of markers 30 change when the driver touches the air cushion 201 and to compare or analyze the state of the driver.

≪ Example 2 >

The reference data is obtained by photographing the positional change of the plurality of markers 30 according to the contact state of the driver and the air cushion 201 when the driver starts operating, . When data is accumulated for a predetermined time in this way, it is used as reference data to provide information to the driver when the pattern image of the marker changes. At this time, if the information provided by the driver is correct, it is stored in the storage unit 51 in an abnormal pattern. Then, the marker image continuously captured is compared with the normal pattern or the abnormal pattern to continuously determine the driver's condition. At this time, the stored reference data may be deleted at a predetermined time (for example, reset every 24 hours).

≪ Example 3 >

The reference data is collected in the same manner as in Embodiment 2 described above, but the stored data is continuously updated without being deleted, so that the accuracy of the information can be improved.

The mounting portion 60 is mounted on the headrest rod 11 and can function to connect with the air cushion 201. The mounting portion 60 includes a cushioning portion 70 to reduce the repulsive force generated by the pressure applied when the driver comes into contact with the air cushion 201 so that the driver does not feel inconvenience when driving. It is possible to flexibly move against the impact between the rest 10 and the air cushion 201. In addition, when a car accident occurs, the buffer 70 absorbs the shock and can prevent or reduce the driver's neck. The buffering portion 70 may be a spring, a damper, or a shock absorber, but is not limited thereto. Preferably a shock absorber.

The shock absorber absorbs the vibration generated by the damping action of the coil spring and the leaf spring, thereby reducing fatigue of the driver's neck and providing a comfortable fit.

In the embodiment shown in Figs. 2 and 3, the spring is shown, but the present invention is not limited thereto.

The imaging device 40 can be mounted inside the mounting portion 60 and the imaging device 40 can be mounted in the air cushion 201. In this case, Since the air cushion unit 200 is separated from the air cushion unit 201, when the air cushion unit 200 is contaminated or broken, only the air cushion unit 200 can be taken out and replaced. This can be confirmed through the embodiment shown in FIG. 2 and FIG.

The head support may further comprise an interface unit (80) for alerting the driver to the application information in one or more ways selected from visual, tactile, olfactory, or auditory methods.

In a way of visually alarming the driver, there may be a way of signaling the driver using light to alert the current driver's condition.

In a tactile warning method for the driver, there may be a method of passing minute current or transmitting information to the driver through the vibrator.

There may be a method of transmitting information to a driver by a smell or the like in a method of alerting the driver to a smell.

In a method of audibly warning the driver, there may be a method of transmitting information to the driver by a method of sounding an alarm through a speaker or the like.

There are ways to do this, but this is not a limitation.

Preferably, the bone conduction speaker 81 and the bone conduction microphone 82 may transmit information to the driver. The bone conduction speaker 81 and the bone conduction microphone 82 may function as an alarm function, Can also perform the function of. In this case, the bone conduction speaker 81 and the bone conduction microphone 82 may further include a second radio module.

The head support may further include a sensing unit 90 for sensing temperature or humidity inside the vehicle. The information obtained through the sensing unit 90 is added to the efficiency of the processor unit 50 to determine the driver's state Can be increased.

The position where the sensing portion 90 is installed may be located in the mounting portion 60, the air cushion 201, and the shape retaining frame 202. It can be confirmed in the embodiment shown in FIG. 2 and FIG.

A method of installing the head support mounted on the headrest 10 to detect and determine the state of the driver will now be described.

First, the air cushion 201 to be used is injected in accordance with the thickness or the convenience of the driver's neck to adjust the volume.

Then, the air cushion portion 200 is connected to the mounting portion 60.

Next, the mounting portion 60 is connected to the headrest rod 11 of the driver's seat so that the head support can be fixed to the headrest 10 and installed.

A method of operating the head support 20 mounted on the headrest 10 to sense and determine the state of the driver will now be described.

First, the driver and the air cushion 201 are brought into contact with each other.

Then, the head support 20 loads the reference data.

Then, the image pickup device (40) picks up the size, position, shape or arrangement state of the plurality of markers (30) according to the state change of the driver and collects marker images.

Then, the photographed marker image is transmitted to the processor unit 50.

Then, the processor unit 50 compares and analyzes the marker image with the reference data and processes it as application information.

Then, the application information is processed and transmitted to the interface unit 80 at the judgment of the processor unit 50. [

Then, the interface unit 80 can alert the driver through the transmitted application information.

The method may further include the step of utilizing the application information to update the reference data.

An air cushion (200) having an air cushion (201) filled with air therein, an air cushion (201) having an air cushion (201) A plurality of markers 30 arranged in a predetermined manner on an inner surface of the air cushion 201 and a marker image obtained by photographing a change in a plurality of markers 30 changing in accordance with the contact state and movement of the driver and the air cushion 201 The drowsiness driving prevention system can be provided by using the head support 20 including the imaging device 40 for collecting and the processor unit 50 for processing the marker image to generate application information.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: Headrest
11: Headrest rod
20: Head support
200: Air cushion part
201: Air cushion
202: Shape retaining frame
30: Marker
40:
50:
51:
60:
61: headrest rod binding portion
70: buffer
71:
80:
81: Bone conduction speaker
82: Bone conduction microphone
90:

Claims (20)

A head support (20) mounted on a headrest (10) for sensing and determining a state of a driver,
An air cushion portion 200 having an air cushion 201 filled with air;
A plurality of markers 30 arranged on the inner surface of the air cushion 201 in a predetermined manner;
An imaging device (40) for collecting a marker image of a change in the plurality of markers (30) that changes in accordance with the contact state and movement of the driver and the air cushion (201);
A processor unit 50 for processing the marker image to generate application information;
Wherein the head support comprises:
The method according to claim 1,
Wherein the air cushion unit (200) further comprises a shape-retaining frame (202) for maintaining the shape of the air cushion (201).
The method according to claim 1,
Further comprising a mounting portion (60) for connecting the headrest (10) and the head support (20).
The method of claim 3,
Wherein the imaging device (40) is installed inside the air cushion (201) or inside the mounting part (60).
The method according to claim 1,
Wherein the processor unit (50) further comprises a storage unit (51) for storing reference data to be compared with the marker image to generate the application information.
The method according to claim 1,
Wherein the head support further comprises an interface (80) for alerting the driver to the application information in one or more ways selected from visual, tactile, olfactory, and auditory methods.
The method of claim 6,
Wherein the interface unit (80) further comprises a bone conduction speaker (81) and a bone conduction microphone (82) for alerting the driver.
The method of claim 3,
Wherein the mounting portion (60) is detachable from the air cushion portion (200).
The method of claim 3,
Wherein the mounting portion (60) further comprises a cushioning portion (70) that flexibly adjusts the distance between the air cushion (201) and the headrest (10) and prevents a head of a driver from being hung up.
The method of claim 9,
Wherein the buffer part (70) comprises a spring.
The method according to claim 1,
Wherein the head support further comprises a sensing unit (90) for sensing temperature and humidity inside the vehicle.
The method of claim 5,
Wherein the reference data comprises normal pattern information and is stored in the storage unit (51).
The method of claim 12,
And the processor unit (50) alerts when receiving the marker image that deviates from the stored normal pattern information.
The method of claim 5,
Wherein the reference data is composed of abnormal pattern information and is stored in the storage unit (51).
15. The method of claim 14,
When the processor unit (50) receives the marker image corresponding to the abnormal pattern information stored therein.
The method of claim 5,
Wherein the reference data is continuously updated using the application information.
In the head support mounting method of claim 1,
(i) injecting air into the air cushion 201;
(ii) connecting the air cushion part 200 with the mounting part 60;
(iii) connecting the mounting portion 60 to the headrest 10 of the driver's seat
Wherein the head support is attached to the head support.
In the method of using the head support of claim 1,
(i) the step of contacting the driver with the air cushion 201;
(ii) the head support loads reference data.
(iii) capturing the marker image by capturing an image of the size, position, shape, or arrangement of the plurality of markers (30) according to the driver's state change;
(iv) transmitting the marker image in the step (iii) to the processor unit (50).
(v) comparing and analyzing the marker image with the reference data to process the marker image into application information.
(vi) the application information is processed and transmitted to the interface unit 80 at the judgment of the processor unit 50;
(vii) the interface unit (80) alerts the driver through the transmitted application information.
Wherein the head support is supported by the head support.
19. The method of claim 18,
Further comprising the step of using the application information between the step (vi) and the step (vii) to update the application information with the reference data.
A drowsiness prevention system using a head support mounted on a headrest (10) to sense and determine a driver 's condition,
An air cushion portion 200 having an air cushion 201 filled with air;
A plurality of markers 30 arranged on the inner surface of the air cushion 201 in a predetermined manner;
An imaging device (40) for collecting a marker image of a change in the plurality of markers (30) that changes in accordance with the contact state and movement of the driver and the air cushion (201);
A processor unit 50 for processing the marker image to generate application information;
Wherein the damping operation prevention system includes a head support.

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