KR101033509B1 - Headrests, method of controlling the same, methods of preventing falling asleep at the wheel and drunk driving - Google Patents

Abstract

The present invention relates to a headrest, a method of controlling the headrest, a drowsy driving and a drunk driving prevention method using the headrest, and a vertical moving unit for moving the headrest mounted on the seat of the vehicle in a vertical direction, and the main body. A rotating part for rotating the front and back of the seat, an automatic operation part and a manual operation part for automatically and manually controlling the rotation of the main body, and connected to the side of the main body to rotate independently of the main body, and having a connection part A configuration including a mounting portion is provided.

By using the headrest, the headrest control method, the drowsiness operation and the drunk driving prevention method using the headrest as described above, the driver's drunken driving is prevented and the driver's drowsy driving is judged to be drowsy while driving the vehicle. Accidents caused by driving can be prevented, and the height and angle of the headrest can be automatically or manually adjusted to the occupant to reduce the comfort and impact on the occupant in the event of an accident. In addition, it is possible to prevent accidents due to the use of a mobile phone while driving, and to safely drive the vehicle by securing the front view of the rear seat occupant and the rear view of the driver by rotating the headrest.

Headrest, Automatic Control Unit, Manual Control Unit, Fine Spacing Control Unit, Stopper

Description

Headrests, control method of headrests, prevention of drowsiness and drunk driving using headrests {Headrests, method of controlling the same, methods of preventing falling asleep at the wheel and drunk driving}

The present invention relates to a headrest, a headrest control method, a drowsy driving and a drunk driving prevention method using a headrest, in particular, accidents caused by using a mobile phone while driving a handsfree, a surveillance camera or a drunk measurement sensor on the headrest, The present invention relates to a head restraint control method for a head restraint, a head restraint control method, a drowsiness drive and a drunk driving prevention method using a head restraint, which can prevent accidents caused by drowsy driving and drunk driving.

In general, a headrest is mounted on the upper seat of the vehicle corresponding to the occupant's head to comfort the occupant and prevents the head of the occupant from being bent in the event of a collision to prevent a fatal injury that may be applied to the neck area. Device. These headrests can be freely adjusted in height according to the occupant's head position, and can be equipped with various devices such as a drowsy driving prevention device and a breathalyzer so as not to interfere with safe driving.

Thus, an example of the technique regarding the headrest which can prevent drowsiness operation is disclosed by following document 1 (car restraint prevention headrest for cars).

In the following Document 1, as shown in Fig. 1, the seat groove portion 2 is formed at an angle of about 45 ° on the front upper portion of the seat back 1, and the headrest 3 is mounted therein. A rack gear part 4 is formed at the rear part of the rest 3, and a pinion gear part 5 engaged with the rack gear part 4 is fixed to the shaft 6 in the longitudinal direction of the seat back 1, At the center of one side of the pinion gear portion 5, a 'b' shaped projection 7 is mounted, while a coil spring is provided at the end of the bolt 9 coupled to the hole 8 formed in the projection 7. An automobile drowsiness preventing headrest is proposed, wherein one end of the 10 is fixed and the other end is fixed to a predetermined position of the seatback 1.

In addition, another example of a technique for a headrest capable of preventing drowsy driving is disclosed in the following document 2 (vehicle headrest for preventing drowsy driving).

In Reference 2, as shown in FIG. 2, the main controller 20, the main controller 20, and the vehicle, which are embedded in the headrest 25 and are provided with a number of massage functions and speed sensing programs therein, are shown in FIG. Is connected to the cigar jack socket of the cigar jack 21 to supply power to the main controller 20, the remote controller 22 is connected to the main controller 20 to operate it, the main controller 20 and the speedometer of the car It is provided with a plurality of speed sensing wires 23 connected to the inside of the headrest 25, connected to the main controller 20, and operated according to a program transmitted from the main controller 20. Car headrests for preventing drowsy driving have been proposed.

On the other hand, as the number of cars increases, traffic accidents are frequently caused by drinking or driving with drugs, but it is difficult to prevent drunk driving directly and restricts drunk driving in an indirect manner by crackdown.

Therefore, an example of a technique for preventing drunk driving as described above is disclosed in the following document 3 (vehicle key and drunk driving prevention device).

In the following Document 3, a tip portion is inserted into a keyhole of a vehicle, a holder portion provided at the base end portion of the key portion, and protrudes from the holder portion, thereby preventing insertion of the key portion into the vehicle's keyhole. And an aerobic component detection means for detecting alcohol and / or a drug contained in the user's exhalation, wherein the insertion prevention means is accommodated in the holder according to the detection result of the aerobic component detection means. A vehicle key is proposed, which is characterized in that the

[Document 1] Korean Unexamined Patent Publication No. 2002-0051223 (published June 28, 2002)

[Document 2] Republic of Korea Patent Publication No. 10-2005-0038686 (published April 29, 2005)

[Document 3] Republic of Korea Patent Publication No. 10-2006-0087518 (August 02, 2006)

However, in the technique disclosed in Document 1, there is a problem that an accident may occur by forcing the driver to bow forward while obscuring the field of vision while driving.

In addition, in the technique disclosed in Document 2, there is a problem that can not be freely adjusted the height and angle of the headrest can be used according to the physical condition of the occupant.

In addition, in the technique disclosed in the document 3, there is a problem in that it is not possible to directly check whether or not the driver is actually drunk and prevent theft of the vehicle.

An object of the present invention has been made to solve the above problems, the control of the headrest, headrest to determine whether the driver drowsy driving while driving the vehicle by mounting a surveillance camera for detecting eye blink on the headrest The present invention provides a method for preventing drowsy driving and drunk driving using a headrest.

Another object of the present invention is to adjust the height and angle of the headrest according to the physical condition of the driver headrest that can protect the neck of the occupant during the collision with the rear car, the control method of the headrest, drowsy driving using the headrest And to provide a method for preventing drunk driving.

Another object of the present invention is to determine whether the driver drinking alcohol in advance to prevent drunk driving, and to prevent theft of the vehicle headrest, headrest control method, drowsiness driving and drunk driving prevention method using the headrest To provide.

In order to achieve the above object, the headrest having the drowsiness driving prevention device according to the present invention is disposed spaced apart from each other in an internal space formed in the main body, and has a fixed gear mounted therein and a stopper engaged with the fixed gear. A side cover and a push button protruding outward from one side of the main body to penetrate the side cover and extend into the main body to move the first bar having a first elastic member therein to detach and detach the stopper from the fixed gear. And a manual operation unit for manually rotating the main body by a rotating unit rotated by a first motor by engaging a fixed wheel fastened to a second bar connecting the fixed gears to each other, and passing through the side cover on the pushbutton side. Wraps one bar, and is attached to the third bar connecting the stopper and the micro-gap adjusting part connected to the rotating part. It characterized in that it comprises an automatic operation unit for detaching the stopper from the fixed gear with a power applied to the attached solenoid coil, and rotating the main body with a first motor connected to the rotating unit.

In addition, the headrest having a drowsy driving prevention device according to the present invention is mounted on one side of the main body is rotated in accordance with the drive of the second motor provided in the main body, the mounting portion having a connecting portion for moving up / down It further comprises.

In addition, the headrest having a drowsy driving prevention device according to the present invention is characterized in that the connection portion is equipped with at least one device selected from the hands-free, breathalyzer and eye blink detection camera.

In addition, the headrest having a drowsiness driving prevention device according to the present invention, the rotating part is connected to the first motor, the drive gear having a groove, the wheel gear transfer frame connected to one end of the inner first bar of the main body And a moving wheel having a protrusion corresponding to the groove of the driving gear and connected to the wheel gear transfer frame so as to be detachably attached to the fixed wheel.

In addition, the headrest provided with the drowsiness operation prevention device according to the present invention, the fine spacing adjusting portion of the drive gear and the moving wheel by adjusting the elastic force of the second elastic member interposed between the first motor and the rotating part It is characterized by controlling the degree of adhesion.

In addition, the headrest having a drowsy driving prevention device according to the present invention, the moving wheel connected to the drive gear is rotated on the fixed wheel by the power applied to the first motor to rotate the body mounted on the vehicle seat The main body is automatically stopped by an overcurrent relay at the upper and lower maximum rotation positions of the main body.

In addition, the headrest having a drowsiness driving prevention device according to the present invention is a vertical movement having a bending frame for connecting the lower portion of the main body and the seat of the vehicle and a height adjusting motor provided inside the seat to vertically move the bending frame. It is characterized by including a wealth.

In addition, the headrest having a drowsy driving prevention device according to the present invention, the automatic operation portion includes an automatic switch provided on the inner side of the side cover located opposite the manual operation portion, the automatic switch is the It is characterized in that the on / off according to the operating position of the fixed gear.

In addition, the headrest having a drowsiness operation prevention device according to the present invention, the automatic operation portion is pushed to the right after pressing the push button manual switch lever provided on the inside of the side cover where the manual switch is located one side of the stopper The manual switch is turned off by stopping the groove formed in the groove.

In addition, the headrest having a drowsiness operation prevention device according to the present invention is the automatic switch is mounted on one side of the side cover is a fixed contact electrically connected to the outside of the headrest, interposed between the fixed contact and the side cover Located through the flow contact and the side cover, characterized in that it comprises a ball for electrically connecting the flow contact and the fixed contact by moving the flow contact in accordance with the contact with the fixed gear.

The control method of the headrest according to the present invention for achieving the above object is ⅰ) driver's boarding confirmation sensor on step, ii) the first photo sensor operation step for detecting the driver's head after step iii), iii) the After step ii), the headrest is raised by the height adjusting motor, iii) determining whether the driver's head is detected in the step iii), and iii) if the driver's head is not detected in the step iii). Rotating the motor to lower the headrest, i) stopping the operation of the height adjusting motor after a predetermined time has elapsed in the step iv), and turning on the second photo sensor sensing the driver's rear head; And rotating the headrest when the second photo sensor does not detect the back of the driver in step iii).

The control method of the headrest according to the present invention for achieving the above object is iii) turning on the occupant's boarding confirmation sensor, ii) rotating the headrest leaned by the first motor drive after the step iii), ⅲ 1) operation of the first photo sensor detecting the occupant's head after step ii), iii) raising the headrest vertically by driving the height adjustment motor after step iv), iii) the head of the occupant after step iii) Determining whether the upper part is detected, iii) if the upper part of the occupant's head is not detected in the step iii), rotating the height adjustment motor to lower the headrest, and iii) a second photo sensor for detecting the driver's rear head. And iii) when the second photo sensor does not detect the back of the driver in the step iii), the head is driven by the driving of the first motor. Characterized by including the step of rotating the host.

In addition, the control method of the headrest according to the invention is characterized in that the headrest by rotating the headrest by the drive of the first motor when the occupant confirmation sensor is off after the step iii).

In order to achieve the above object, the drowsiness driving prevention method according to the present invention includes the steps of: i) turning on the vehicle driver sensor; ii) turning on the second motor to rotate the mounting part after the step iii) adjusting the position of the mounting part. (Iii) turning on a third motor which draws out a detection camera for detecting a driver's eye blink after step ii), and iii) determining whether or not the normal eye blink reference value of each driver is set after step iii); Iii) comparing the first blink time of the driver measured in real time for a predetermined time with a preset reference value when not setting the blink reference value in step iii); and iii) the first blink in the step iii) above. When the time is less than the reference value characterized in that it comprises the step of generating a drowsy operation warning sound.

In addition, the drowsiness driving prevention method according to the present invention comprises the following steps: i) comparing the second blinking time of the driver to a preset reference value after the step iii), and iii) if the second blinking time is less than the reference value in the step iii). Generating a drowsy driving warning sound and vibrating the headrest, iii) comparing the driver's third blink time to a preset reference value after step iii), and iii) in step iii), the third blink time is less than the reference value. The drowsiness driving warning sound generation, headrest vibration, vehicle speed control and emergency light, characterized in that it comprises a step of lighting.

In addition, the drowsiness driving prevention method according to the present invention is characterized in that it comprises the step of turning on the driver's normal eye blink time and the setting button using the detection camera when the eye blink reference value is set in the step iii). do.

In order to achieve the above object, a drunk driving prevention method according to the present invention includes the steps of: i) turning on the driver detection sensor and the seat switch; ii) turning on the vehicle after the step iii) and driving the second motor to rotate the mounting part. (I) driving the third motor to withdraw the connecting part equipped with the breathalyzer, after step ii); and iii) entering a password after step iii) and measuring the alcohol concentration. Determining whether the password is correct after step iii), iii) determining if the alcohol concentration is within the allowable range if the password is correct in step iii), and iii) if the alcohol concentration is within the allowable range in step iii). And (b) moving said connecting portion to an initial position after said step iii).

In addition, the method for preventing drunk driving according to the present invention comprises the steps of generating an emergency light and warning sound when the wrong number of passwords in the step iii) exceeds a set number of times, turning off the vehicle starting and turning off the vehicle starting. The method may further include determining whether the set time exceeds the set time.

As described above, according to the present invention, the headrest, the control method of the headrest, the drowsiness driving and the drunk driving prevention method using the headrest determine whether the driver's drowsy driving while driving the vehicle, The effect of preventing an accident is obtained.

In addition, according to the headrest, the control method of the headrest, the drowsiness driving and drunk driving prevention method using the headrest according to the present invention, by adjusting the height and angle of the headrest to fit the occupant to the comfort of the ride and the neck of the occupant during the accident The effect of reducing the impact applied is obtained.

In addition, according to the headrest, the control method of the headrest, the drowsiness operation and the drunk driving prevention method using the headrest according to the present invention, when the passenger seat does not occupy the passenger seat headrest is bowed to the front of the rear seat occupant When the occupant is seated on the rear seat, the horizontally laid headrest is rotated vertically to stand up to support the occupant's head.When the occupant leaves the seat, the headrest automatically descends horizontally to the rear and the driver's rear The effect of securing a field of view is obtained.

In addition, according to the headrest, the method of controlling the headrest, the drowsiness driving and the drunk driving prevention method using the headrest according to the present invention, the effect that the driver can talk on the mobile phone without distracting while driving the vehicle is obtained. Lose.

In addition, according to the headrest, the control method of the headrest, the drowsiness driving and drunk driving prevention method using the headrest according to the present invention, by preventing the driver's drunk driving can prevent traffic accidents caused by drunk driving in advance, The effect of preventing the theft of the vehicle is obtained by entering a password to drive the vehicle.

In addition, according to the headrest, headrest control method, drowsiness operation and drunk driving prevention method using the headrest according to the present invention, by generating vibration in the headrest to massage the neck portion of the driver or occupant to relieve fatigue and drowsy driving The effect is that it can prevent.

These and other objects and novel features of the present invention will become more apparent from the description of the present specification and the accompanying drawings.

EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention is demonstrated in detail according to drawing.

In addition, in description of this invention, the same code | symbol is attached | subjected to the same part and the repeated description is abbreviate | omitted.

3 is a block diagram of a headrest according to an embodiment of the present invention.

As shown in FIG. 3, the headrest 100 according to the embodiment of the present invention has a main body 30, a mounting portion 31 connected to the shaft on one side of the main body 30, and a lower portion of the main body 30. It has a vertical movement unit 32 connected. The body 30 is formed in a suitable size and design that can support or lean the head of the occupant and is mounted on the seat of the vehicle. The main body 30 includes a manual operation unit 33, a rotation unit 34, a fine interval adjusting unit 35, an automatic operation unit 36, and a vibration generating unit 37. The manual manipulation unit 33 and the automatic manipulation unit 36 operate the rotating unit 34 to rotate the main body 30 manually and automatically.

The fine spacing control unit 35 is installed on the manual control unit 33 to control the operation of the rotating unit 34. The vibration generating unit 37 is mounted on the upper portion of the main body 30 to generate a vibration on the upper portion of the main body 30. The vertical moving part 32 is mounted inside the vehicle seat to vertically move the main body 30 up and down on the seat so that the headrest 100 corresponds to the head position of the occupant.

Next, the configuration of the headrest body according to the embodiment of the present invention will be described in more detail with reference to FIGS. 4A to 4C.

4A is a cross-sectional view illustrating a main body of the headrest according to an embodiment of the present invention, and FIG. 4B is an exploded perspective view showing a right portion of the main body of the headrest shown in FIG. 4A. Figure 4c is a schematic cross-sectional view of the side cover having a manual switch according to an embodiment of the present invention, Figures 4d and 4e is a cross-sectional view showing the operation of the automatic switch mounted inside the side cover according to an embodiment of the present invention to be.

As shown in Figures 4a to 4e, the side cover 38 is spaced apart from each other inside the headrest body 30 according to the present invention. The side cover 38 is firmly supported by fixing plates 39 which connect the tops of the side covers 38 to each other. One side of the side cover 38, the manual control unit 33 is located. The manual control part 33 is connected to the first bar 40 and the first bar 40 extending through the side cover 38 and the push button 41 protruding to the outside of the main body 30. It is provided.

A first elastic member 42, for example, a spring is positioned inside the first bar 40, and the first elastic member 42 transmits an elastic force to the manual manipulation unit 33. The manual switch lever 44 having the protruding protrusion 43 is connected to the inner first bar 40 of the side cover 38. In addition, the stopper 46 is engaged with the fixed gear 45 and the fixed gear 45 inside each of the side covers 38.

On the other hand, the rotary portion 34 having a wheel gear transfer frame 47, the old synchronizing gear 48 and the moving wheel 49 is connected to the end of the inner first bar 40 of the main body 30. One side of the wheel gear transfer frame 47 is connected to an end of the first bar 40, and the drive gear 48 is interposed between the wheel gear transfer frame 47 and the moving wheel 49. The drive gear 48 is connected to the first motor 50 supported by the lower portion of the inner fixing plate 39 of the main body 30, and has a groove 51 on the surface adjacent to the moving wheel 49. .

The moving wheel 49 is connected to the other side of the wheel gear transfer frame 47 and is located between the first motor 50 and the fixed gear 45 and has a protrusion 52 corresponding to the groove 51. Equipped. The groove 51 of the drive gear 48 and the protrusion 52 of the movable wheel 49 are closely attached to each other so as to be detachable from each other. In addition, a second elastic member 53 including a spring is interposed between the first motor 50 and the moving wheel 49.

The main body 30 is automatically stopped by an over current relay (OCR) at the upper and lower maximum rotation positions. In this case, the protruding portions at the lower ends of the side covers 38 are caught by the protruding portions on both sides of the fixed gear 45. Therefore, the first motor 50 is overloaded so that the power is automatically cut off, and the protrusion serves as a stopper.

When a strong external force is applied to the headrest 100 while the main body 30 mounted on the vehicle seat is rotated by the power applied to the first motor 50, even if the first motor 50 is driven, the moving wheel 49 ) May be spaced apart from the driving gear 48 to protect the first motor 50.

On the other hand, the first cover 40 is wrapped through the side cover 38, the micro-gap control unit 35 is connected to one side of the rotating part 34. The fine spacing adjusting part 35 adjusts the elastic force of the second elastic member 53 interposed between the first motor 50 and the moving wheel 49 to closely contact the driving gear 48 and the moving wheel 49. Control the degree. The fixed gears 45 mounted on each of the side covers 38 are connected to each other by a second bar 54. The second bar 54 is equipped with a fixed wheel 55 engaged with the movable wheel 49 to be detachable. The second bar 54 is attached to a bending frame 56 which connects the headrest 100 and the vehicle seat to each other. Tilting springs 57a and 57b are mounted on both edges of the second bar 54 and the inner side of the side cover 38, respectively. The tilting springs 57a and 57b smoothly rotate the main body 30 by elastic force, and firmly support the second bar 54 and the bending frame 56.

The automatic control part 36 includes a stopper 46 which is detachably attached to the fixed gear 45, a third bar 58 which connects the stopper 46 to each other inside the main body 30, and the third bar ( 58 is provided with a solenoid coil 59 and an automatic switch 60 mounted at one side of the side cover 38. The automatic control unit 36 detaches the stopper 46 from the fixed gear 45 by the power applied to the solenoid coil 59. The first motor 50 connected to the rotating part 34 rotates the main body 30 of the headrest 100 in the front and rear directions of the vehicle seat.

The automatic switch 60 is configured to include a fixed contact (60a), a floating contact (60b) and the ball (61). The fixed contact 60a is electrically connected to the outside of the headrest 100, and one side of the side cover 38 on which the manual control unit 33 is mounted or the side cover 38 on which the manual control unit 33 is not mounted. It is mounted on one side of the. The floating contact 60b is located between the fixed contact 60a and the fixed gear 45. The ball 61 penetrates through the side cover 38 and moves toward the floating contact 60b according to the operating position of the fixed gear 45. Therefore, the ball 61 is electrically connected to the fixed contact (60a) by moving the flow contact (60b) in accordance with the contact.

In more detail, the automatic switch 60 is switched to the on state at the third stage when the headrest 100 is erected vertically by the passenger. If the three steps are defined, the headrest 100 adjusts the distance between the occupant head and the headrest step by step in a vertical position. For example, the headrest 100 is stopped for a predetermined time after the first one step rotation toward the occupant's head. After the first step, the motor rotates by two steps, stops for a predetermined time, and then rotates back to three steps. In other words, the headrest 100 rotates in a discontinuous motion according to the pitch length of the fixed gear 45.

The contact of the automatic switch 60 is turned on to automatically adjust the interval up to three levels, after which the contact of the automatic switch 60 is turned off so as not to rotate the headrest 100. Therefore, the gap between the occupant and the headrest 100 may be adjusted to protect the neck during a collision with the rear car.

When the headrest 100 is vertically erected, the automatic switch 60 is moved by contacting a portion of the fixed gear 45 with the ball 61 provided in the automatic switch 60 to fix the floating contact 60b. It comes to contact with 60a, and it is switched to the state. In addition, after the headrest 100 is rotated to the maximum, the ball 61 is pulled out of the fixed gear 45, the automatic switch 60 is turned off, and the rotation of the headrest 100 is stopped.

On the other hand, a restoring spring (62) surrounding the third bar (58) is mounted adjacent to the solenoid coil (59). The restoring spring 62 restores the stopper 46 to its original position after the rotation of the body 30 is completed, thereby engaging the fixed gear 45 to prevent arbitrary rotation of the body 30.

The first photo sensor 63 is provided on the front of the main body 30 to detect the head height of the occupant, and the second photo sensor 76 is installed at both edges of the main body 30 to detect the back of the occupant. It is. The second photo sensor 76 may include a light emitting part and a light receiving part. The light emitting part is provided on one side of the front surface of the main body 30, and the light receiving part is provided on the other side of the main body 30 corresponding to the light emitting part so as to receive the light emitted from the light emitting part.

The vibration generating unit 37 includes a vibration motor 64 mounted on the upper portion of the main body 30 and an operation switch 65 protruding outward of the main body 30. The vibration generator 37 may generate vibration in the main body 30 by turning on the operation switch 65 of a vehicle occupant.

Next, with reference to Figures 5a, 5b and 6 will be described the configuration of the mounting portion and the vertical moving portion of the headrest according to the present invention. Figure 5a is a cross-sectional view showing a mounting portion of the headrest according to an embodiment of the present invention, Figure 5b is an exploded perspective view showing an exploded view of the mounting portion of Figure 5a, Figure 6 is a vertical view of the headrest in accordance with an embodiment of the present invention It is sectional drawing which shows a moving part.

As shown in Figure 5a and 5b, the mounting portion 31 according to the embodiment of the present invention is mounted on one side of the main body 30 opposite the manual operation unit 33. The mounting part 31 may rotate independently of the main body 30 by driving the second motor 66 provided on the inner fixing plate 39 of the main body 30. In more detail, the first pulley 67 extends in the direction of the mounting portion 31 by being connected to the second motor 66, and is connected to the mounting 31 to penetrate one side of the main body 30. The second pulley 68 extends in the direction of the second motor 66. Hereinafter, other components of the mounting portion 31 are well known to those skilled in the art to which the present invention pertains, and a description thereof will be omitted.

The first pulley 67 and the second pulley 68 are connected by a connecting means 69 which can be used normally, such as a rubber belt, and rotate simultaneously with the driving of the second motor 66. The second motor 66 may transmit power to the mounting portion 31 by using a disk projection instead of transmitting power to the mounting portion 31 using a belt. In this case, the disc protrusion has a structure that can be misused even when the second motor 66 is driven when an external force is applied to the mounting portion 31 while the mounting portion 31 is rotated.

The third motor 70 is mounted in the mounting portion 31, and the gear 71 is rotated according to the driving of the third motor 70. The connection portion 72 is engaged with the gear 71 to move up / down from the lower portion of the mounting portion 31.

In this case, the connection unit 72 may be equipped with at least one device selected from a hands-free speaker, a microphone, a blinking camera, and a breathalyzer. In addition, although not shown, the mounting unit 31 is provided with various buttons such as a password input button, a speaker volume control button, a reset button, a drowsiness detection operation button, a breathalyzer operation button, and a hands free control button.

As shown in FIG. 6, a vertical moving part 32 is provided inside the vehicle seat. The vertical moving part 32 includes a bending frame 56 connected to the main body 30 of the headrest 100 and a height adjusting motor 73 for moving the bending frame 56 up and down of the seat. . Accordingly, the main body 30 may move vertically on the seat in response to the position of the head of the vehicle occupant according to the detection of the first photo sensor 63 by the power applied to the height adjustment motor 73. In this case, the vertical moving part 32 moves the main body 30 in the front / rear direction of the vehicle on the seat instead of rotating the main body 30 by the driving of the rotating unit 34 by the first motor 50. Corresponds to the occupant's head position. Hereinafter, other components of the vertical movement unit 32 are well known to those skilled in the art to which the present invention pertains, and a description thereof will be omitted.

Next, the operation of the headrest according to the present invention will be described with reference to FIGS. 6 to 8B. 7 is a view showing the operation of the mounting portion according to an embodiment of the present invention. 8A is a flowchart illustrating a method of adjusting a headrest installed in a driver's seat according to an embodiment of the present invention, and FIG. 8B is a flowchart illustrating a method of adjusting a headrest installed in a passenger seat and a rear seat according to an embodiment of the present invention. .

As shown in Figure 6 to 8a, the pressure sensor (not shown) mounted on the vehicle seat detects whether the driver boards (S201). After the step S201, the first photo sensor 63 mounted on the upper front of the main body 30 is turned on to sense the driver's upper head (S202), and the height is adjusted according to the control of the controller (not shown). The headrest 100 is raised by driving the motor 73 (S203). In more detail, the first photo sensor 63 detects the driver's head for a preset time, for example, 7 to 12 seconds, and when the driver's head is detected, the height adjusting motor is controlled by the controller. Power is applied to the 73 to move the main body 30 of the headrest 100 upward.

In step S203, the controller determines whether the driver's head is detected according to the sensing of the first photo sensor 63 (S204). In this case, the height adjustment motor 73 is temporarily stopped when the upper head of the driver is not detected, driving in the reverse direction to lower the main body 30 for a predetermined time (S205), the headrest 100 If the position corresponding to the driver's head stops the driving of the height adjustment motor (73) (S206).

For example, the height adjustment motor 73 is paused for a time of about 1 to 2 seconds when the upper head of the driver is not detected. After this time, the height adjustment motor 73 is driven in the reverse direction to position the main body 30, for example, as low as 3cm to 5cm at the head end, and stop under the control of the controller. Therefore, the height adjustment motor 73 can adjust the position of the main body 30 in the vertical direction in accordance with the head height of the driver.

Next, the second photo sensor 76 mounted on both ends of the front surface of the main body 30 detects the driver's rear head to rotate the main body 30 (S207). For example, the second photo sensor 76 is mounted on one end of the front surface of the main body 30 to emit light and is mounted on the other end of the front side of the main body 30 to receive the light emitted from the light emitting portion. It may be configured as a light receiving unit. After the step S207, it is determined whether the driver's back is detected (S208). In the step S208, the headrest 100 is configured to control the first head according to the control of the controller when the driver's rear head is not detected for a predetermined time, for example, 15 seconds to 25 seconds in the second photo sensor 76. The motor is rotated by the power applied to the motor 50 (S209). On the contrary, when the driver's rear head detects the second photo sensor 76 within a preset time, the controller resets the counter time and starts the counter again from the time when the driver's rear head is not detected.

In more detail, when the second photo sensor 76 does not detect the driver's back for a preset time, the controller is powered by the solenoid coil 59 connected to the third bar 58. According to the laws of physics, the third bar 58 is moved in one direction of the side cover 38. Accordingly, the stopper 46 connected to the end of the third bar 58 is separated from the fixed gear 45 mounted inside each of the side covers 38.

After the stopper 46 is separated from the fixed gear 45, power is applied to the first motor 50 for a preset time under the control of the controller, and the rotating part 34 connected to the first motor 50. The drive gear 48 and the moving wheel 49 in close contact with the drive gear 48 is rotated. Accordingly, the main body 30 of the headrest 100 moves forward / backward of the vehicle seat in which the driver rides by the rotation of the moving wheel 49 engaged with the fixed wheel 55 fastened to the second bar 54. Will rotate.

In this case, the main body 30 may rotate discontinuously, without continuously rotating forward and backward of the vehicle seat. For example, when the surface of the fixed wheel 55 is composed of teeth, the angle formed by the pitch (pitch) adjacent to each other at the center of the fixed wheel 55 to form a 10 °, the rotation step of the main body 30 Can be formed in three steps. Therefore, the main body can rotate within 10 degrees by discontinuously rotating by 10 ° in each step. However, the rotation angle of the main body 30 can be freely changed by adjusting the pitch length of the teeth of the fixed wheel 55.

In this case, the controller determines whether the driver's back is detected by the second photo sensor 76 in each step while the main body 30 is rotated in three steps (S208). In the step S208, when the second photo sensor 76 does not detect the driver's back, the controller applies power to the solenoid coil 59 connected to the third bar 58, and after a preset time Will block. Therefore, the third bar 58 is restored to its original position by the restoring force of the restoring spring 62 connected to the third bar 58 to engage the stopper 46 and the fixed gear 45, and the first motor. The power supply 50 is stopped by a normal over current relay (OCR) and stopped. Thereafter, the first motor 50 is operated once by a predetermined time in the forward or reverse direction to fully engage the fixed gear 45 and the stopper 46. As a result, the gap between the headrest 100 and the driver's head is automatically adjusted by the automatic operation unit 36 to protect the driver's neck and head in case of a vehicle accident.

As described above, when the one-step interval adjustment of the occupant's head and the headrest 100 is automatically completed, the driver's head is detected for a predetermined time, for example, 17 to 20 seconds by the second photo sensor 76. And enter the step 2 spacing step. After the second step is adjusted to adjust the interval up to three steps. When the interval adjustment of the three steps is completed, the automatic switch 60 is turned off to stop the operation of the second photo sensor 76. Thus, the headrest 100 is maintained in a three-step interval adjustment state.

In this case, the driver may adjust the rotation of the headrest 100 semi-automatically or manually. For example, when adjusting the rotation of the headrest 100 semi-automatically, the driver turns on the headrest 100 by applying power to the automatic control unit 36 by turning on a switch (not shown) separately installed on the vehicle seat. It can be rotated after standing vertically, and the power of the first motor 50 can be cut off by turning off the switch after rotating by a desired angle. Since the rotation process of the headrest 100 is as described above, a detailed description thereof will be omitted.

On the other hand, the driver can manually operate the headrest 100 by turning on the push button 41 protruding from one side of the main body 30 to the outside. By turning on the pushbutton 41, the manual switch lever 44 connected to the first bar 40 is moved inward of the main body 30, and the stopper 46 is connected to the manual switch lever 44. They move together and are separated from the fixed gear 45.

In this case, while the first bar 40 extending to the push button 41 moves inwardly of the main body 30, the moving wheel 49 of the wheel gear transfer frame 47 is separated from the driving gear 48. Let's do it. In other words, the protrusion 52 of the moving wheel 49 and the groove 51 of the drive gear 48 are spaced apart from each other. However, the moving wheel 49 is still engaged with the fixed wheel 55 so that the angle of the headrest 100 can be manually adjusted regardless of the driving of the first motor 50.

When the pushbutton 41 is turned off after the angle is manually adjusted, the stopper 46 is engaged with the fixed gear 45 again by the restoring force of the first elastic member 42 and the second elastic member 53. do. However, the protruding portion 52 of the movable wheel 49 is not engaged with the groove portion 51 of the drive gear 48 by the restoring force of the first and second elastic members 53. Can be contacted. In this case, the protrusion 52 and the groove 51 may be engaged with each other by the driving of the first motor 50. In addition, when the occupant slightly pushes the pushbutton 41 and then rotates to the right, the manual switch lever 44 is caught by a groove formed on one side of the stopper 46, thereby turning off the manual switch 75 to operate the automatic control unit 36. Can be stopped. Therefore, the power is applied to the automatic control unit 36 in accordance with the on-off of the manual switch 75.

While driving the vehicle, the driver may rotate the main body 30 by pressing the rotation control switch 74 on the upper portion of the main body 30 with the rear head for a predetermined time. For example, when the driver presses the rotation control switch 74 with the back for 3 seconds, power is applied to the solenoid coil 59 for the last 1 second to rotate the main body 30.

On the other hand, the headrest 100 may be mounted on the seat of the driver's seat, the passenger seat and the rear seat. When the headrest 100 is mounted on the passenger seat and the rear seat, it is also possible to remove the mounting portion 31 and install only the main body 30.

As shown in Figure 8b, the headrest installed in the passenger seat is the occupant detection sensor is turned on when the occupant opens the vehicle door (S210). After the step (S210), the headrest that was leaned is rotated by the drive of the first motor 50 to stand vertically (S211), in the standing state is stopped by the operation of the overload relay. Since the operation after the step S211 is the same as the headrest installed in the driver's seat described with reference to FIG. 8A, a detailed description thereof will be omitted.

However, when the occupant gets off and the occupant detection sensor is turned off, the headrest of the passenger seat rotates and bows to the front of the vehicle. Therefore, the driver can drive safely by securing the rear view. In addition, the headrests installed in the front passenger seat and the rear seat can be operated manually or semi-automatically as well as the driver's seat.

On the other hand, the operation order of the headrest mounted on the rear seat is the same as the passenger seat, but by changing the direction of some parts such as the fixed gear 45 and the fixed wheel 55, the main body 30 can be erected vertically from the rear. Therefore, the neck of the occupant can be protected, and the headrest can be leaned backward when the occupant gets off, thereby securing a rear view of the driver.

Next, the massage method that can massage the neck area will be described. 9 is a diagram illustrating a neck massage method of the headrest according to the embodiment of the present invention.

As shown in Figure 9, the neck massage method according to the present invention by turning on the push button 41 of the headrest 100 to manually adjust the angle so that the upper portion of the body 30 corresponds to the back of the neck. Next, the operation switch 65 for operating the vibration motor 64 installed on the headrest 100 is operated by hand or neck. Thus, the vibration motor 64 is applied to the back of the neck of the occupant to reduce the fatigue of the occupant, or to give a vibration to prevent the drowsiness of the occupant. The driver's seat headrest 100 may be installed at a portion where the head of the headrest 100 comes in contact with the vibration motor 64.

Next, the operation method of the mounting portion according to an embodiment of the present invention will be described. 10 and 11 are flowcharts illustrating a method of receiving and transmitting a mobile phone according to an embodiment of the present invention, respectively.

As shown in FIG. 10, the method for receiving a mobile phone according to an embodiment of the present invention provides a method for a driver of a vehicle to receive a mobile phone without using a separate hand. In this case, the mobile phone and the headrest may be connected wirelessly including wired or Bluetooth. First, the control unit (not shown) installed inside the headrest 100 continuously detects whether power is applied to the mobile phone and whether a call is in a waiting state (S221). In the step (S221), a signal tone generated from the mobile phone is received by the control unit (S222), the power is applied to the second motor 66 mounted inside the main body 30 by the signal tone for a predetermined time, for example For example, by rotating the mounting portion 31 for one second to the side of the driver's face (S223).

After the step S223, the control unit determines whether the mounting unit 31 is located at the side of the driver's face (S224), and when the mounting unit 31 is located at the driver's face, the second motor 66 of the second motor 66 is located. Stop driving (S225). After the step (S225), by driving the third motor 70 provided in the mounting portion 31 to take out the connecting portion 72 (S226). In step S226, it is determined whether the connection unit 72 is located around the driver's mouth (S227), and when the connection unit 72 is located around the driver's mouth, the driving of the third motor 70 is stopped. (S228), the driver turns on the call button and talks with the other party (S229).

In the step (S229), when the call is terminated, the call button is turned off (S230), the third motor 70 is driven in the reverse direction to return the connection portion 72 (S231), the second motor ( 66 is driven in the reverse direction to return the mounting portion 31 (S232).

As shown in FIG. 11, a method for transmitting a mobile phone according to an embodiment of the present invention also provides a method for a driver of a vehicle to make a call without using a separate hand. First, the control unit (not shown) installed inside the headrest 100 continuously detects whether power is supplied to the mobile phone and whether a call is in a waiting state (S240). In the step (S240), when the call button is turned on (S241), the power is applied to the second motor 66 mounted inside the main body 30, the mounting portion 31 for a predetermined time, for example, 1 second Rotate to rotate to the side of the driver's face (S242).

After the step S242, the controller determines whether the mounting unit 31 is located on the side of the driver's face (S243), and when the mounting unit 31 is located on the side of the driver's face, The driving is stopped (S244). After the step S244, the connecting unit 72 is drawn out by driving the third motor 70 provided in the mounting unit 31 (S245). In step S245, it is determined whether the connection unit 72 is located around the driver's mouth (S246), and when the connection unit 72 is located around the driver's mouth, the driving of the third motor 70 is stopped. (S247).

In the step (S247), when the call is terminated, the call button is turned off (S248), the third motor 70 is driven in the reverse direction to return the connection portion 72 (S249), the second motor 66 Driving in the reverse direction to return the mounting portion 31 (S250).

Next, the drowsiness operation prevention method according to an embodiment of the present invention will be described. 12 is a flowchart illustrating a drowsiness operation prevention method according to an embodiment of the present invention.

As shown in FIG. 12, when the driver detects whether the driver is on, the sensor is turned on (S260), and when the driver is detected, the second motor 66 is turned on to rotate the mounting unit 31 (S261). In operation S262, the third motor 70 is moved to a position where the eye blink detection camera can detect the eye blink of the driver. In the step S262, when the detection camera is located around the driver's eyes, it is determined whether each driver's normal eye blink reference value is set (S263). In the step S263, when the reference value is set again, a normal eye blink time per reference time of the driver is input for a preset time, for example, 10 seconds (S264), and the setting button is turned on (S265).

In the step S265, when the reference value is set again or the preset value is used as it is, the driver drives the vehicle, and the detection camera determines whether the first blink time is less than the reference value while driving the vehicle. (S266). In the step S266, when the first blink time measured by the sensing camera is less than the reference value, a drowsy driving warning sound is generated in the first step of the warning, for example, "Drowsy driving is expected now." . After the above step (S267), it is determined whether or not the second blink time is less than the reference value (S268), and if the second blink time is less than the reference value, two warning beeps, for example, "I am drowsy now. Take a rest "and this head and headrest vibrate (S269).

In the step (S269), the driver opens the window to ventilate to break the drowsiness, and then press the warning release reset button to determine whether to release the warning sound and vibration of the headrest (S270), the warning sound of the off and the headrest If the vibration is released, it is determined whether the first blink time is less than the reference value (S266). Unlike this, if the driver does not press the reset button, it is determined whether the third blink time is less than the reference value (S271), and if the third blink time is less than the reference value, the warning sound, headrest vibration, and vehicle speed are performed in three warning steps. Control and emergency light is turned on (S272). In this case, the warning step 3 is canceled when the vehicle engine is temporarily stopped.

On the other hand, the connection unit 72 can be used selectively, and can automatically detect the drowsiness of the driver when driving the vehicle for a long time or exceeds a specified speed.

Next, a method of preventing drunk driving of the headrest according to the embodiment of the present invention will be described with reference to FIG. 13. 13 is a flowchart illustrating a drunk driving prevention method according to an exemplary embodiment of the present invention.

As shown in FIG. 13, the driver rides the sensor and the seat switch is turned on (S280), and the signal detected by the sensor is a control unit (not shown) mounted inside the headrest 100. Is passed on. After the step S280, the vehicle startup is turned on, the second motor 66 is driven to rotate the mounting unit 31 (S281), and the third motor 70 is driven to draw out the connection unit (S282). After the step S282, the driver inputs a preset password in the vehicle, and measures the alcohol level using the breathalyzer measuring sensor mounted on the connection unit (S283).

In step S283, it is determined whether the input password is the same as the set password (S284), and if it is the same, it is determined whether the alcohol concentration is within the allowable range (S285). When the password and the alcohol concentration are within the vanity range, the solenoid switch on the brake pedal is turned on to operate the brake pedal (286). After the step S286, the connecting portion 72 and the mounting portion 31 is moved to the initial position (S287).

On the contrary, in the step S284, it is determined whether the wrong number exceeds the set number when the input password is wrong (S288), and when the wrong number is continuously exceeded, the emergency light is turned on and the warning sound is It is generated (S289). For example, if the input of the password is set up to be input three times in a row, the warning light is generated from the fourth password input from the emergency light on and hands-free speaker.

In the step (S289), by turning off the start of the vehicle can be turned off the emergency light and the warning sound generated (S290), it is determined whether the off time of the vehicle start exceeds the set time (S291), You can re-enter your password if timed out. However, inputting a password to drive the vehicle may be optional, and the password may be changed or re-entered in consultation with the manufacturer according to the manufacture number of the headrest.

Therefore, by entering the password it is possible to prevent theft of the vehicle, it is possible to prevent traffic accidents due to drunk driving by measuring the alcohol concentration.

Although the invention made by the present inventors has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments and can be modified in various ways without departing from the gist of the present invention.

The present invention relates to a headrest, a method of controlling the headrest, a drowsy driving and a drunk driving prevention method using the headrest. Its applications include being installed in the driver's seat, the passenger seat and the rear seat.

1 is a cross-sectional view showing a head restraint prevention headrest for a vehicle according to the prior art.

Figure 2 is a schematic cross-sectional view showing the interior of the vehicle headrest for preventing drowsy driving according to the prior art.

Figure 3 is a block diagram of a headrest in accordance with an embodiment of the present invention.

Figure 4a is a sectional view showing the main body of the headrest according to the embodiment of the present invention.

4B is an exploded perspective view showing a part of the right side of the main body of the headrest shown in FIG. 4A;

Figure 4c is a schematic cross-sectional view of the side cover having a manual switch in accordance with an embodiment of the present invention.

4D and 4E are sectional views showing the operation of the automatic switch mounted inside the side cover according to the embodiment of the present invention.

Figure 5a is a sectional view showing the mounting portion of the headrest according to the embodiment of the present invention.

FIG. 5B is an exploded perspective view illustrating an exploded view of the mounting portion of FIG. 5A; FIG.

Figure 6 is a sectional view showing a vertical movement of the headrest in accordance with an embodiment of the present invention.

7 is a view showing the operation of the mounting portion according to an embodiment of the present invention.

Figure 8a is a flow chart showing a method of adjusting the spacing of the headrest installed in the driver's seat according to an embodiment of the present invention.

Figure 8b is a flow chart showing a method of adjusting the spacing of the headrest installed in the passenger seat and the rear seat according to an embodiment of the present invention.

Figure 9 illustrates a neck massage method of the headrest in accordance with an embodiment of the present invention.

10 is a flowchart illustrating a method of receiving a cellular phone according to an embodiment of the present invention.

11 is a flowchart illustrating a method for transmitting a mobile phone according to an embodiment of the present invention.

12 is a flowchart showing a drowsy driving prevention method according to an embodiment of the present invention.

13 is a flow chart showing a drunk driving prevention method according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

30: main body 31: mounting portion

32: vertical moving part 33: manual operation part

34: rotating part 35: fine interval adjustment unit

36: automatic control section 37: vibration generating section

38: side cover 39: fixed plate

40: first bar 41: push button

42: first elastic member 43: protrusion protrusion

44: manual switch lever 45: fixed gear

46: stopper 47: transfer frame

48: drive gear 49: moving wheel

50: first motor 51: groove

52: protrusion 53: second elastic member

54: second bar 55: fixed wheel

56: bending frame 57a, 57b: tilting spring

58: third bar 59: solenoid coil

60: automatic switch 60a: fixed contact

60b: floating contact 61: ball

62: restoring spring 63: first photo sensor

64: vibration motor 65: operation switch

66: second motor 67: the first pulley

68: second pulley 69: connecting means

70: third motor 71: gear

72: connection 73: height adjustment motor

74: rotation control switch 75: manual switch

76: second photo sensor

Claims (18)

A side cover spaced apart from each other in an inner space formed in the main body, the side cover having a fixed gear mounted therein and a stopper engaged with the fixed gear; The stopper protrudes from the side of the main body and extends through the side cover to the inside of the main body to move the first bar having the first elastic member therein to detach and detach the stopper from the fixed gear. A manual operation unit which manually rotates the main body to a rotating unit which is rotated by a first motor by engaging a fixed wheel fastened to a second bar connecting gears to each other; A micro-gap adjusting part covering the first bar through the side cover of the pushbutton and connected to the rotating part; And And an automatic operation unit for attaching and detaching the stopper from the fixed gear with a power applied to a solenoid coil mounted to the third bar connecting the stopper, and rotating the main body with a first motor connected to the rotating unit. Rest. The method of claim 1, The headrest further comprises a mounting portion mounted to one side of the main body, the mounting portion having a connection portion that rotates according to the driving of the second motor provided inside the main body and moves up and down. The method of claim 2, The connection part is a headrest, characterized in that at least one device selected from the hands-free, breathalyzer and eye blink detection camera is mounted. The method of claim 1, The rotating part A drive gear connected to the first motor and having a groove portion; A wheel gear transfer frame connected to one end of the first bar inside the main body; And And a moving wheel having a protrusion corresponding to the groove of the drive gear, the moving wheel being connected to the wheel gear transfer frame and engaged to be detachable from the fixed wheel. The method of claim 4, wherein The fine spacing adjusting unit Headrest, characterized in that for controlling the degree of adhesion of the drive gear and the moving wheel by adjusting the elastic force of the second elastic member interposed between the first motor and the rotating part. The method of claim 5, The moving wheel connected to the drive gear rotates the main body mounted on the vehicle seat by rotating on the fixed wheel with the power applied to the first motor, and the main body is overcurrent at the upper and lower maximum rotation positions of the main body. A headrest which is automatically stopped by a relay. The method of claim 1, A bending frame connecting the lower part of the main body and the seat of the vehicle; And The headrest provided on the inside of the seat comprises a vertical moving unit having a height adjusting motor for vertically moving the bending frame. The method of claim 1, The automatic control unit includes an automatic switch provided on the inner side of the side cover located opposite the manual control unit, The automatic switch is a headrest, characterized in that on / off in accordance with the operating position of the fixed gear while rotating the main body. The method of claim 8, The automatic operation unit by pressing the push button is turned to the right by engaging the manual switch lever provided on the inside of the side cover where the manual switch is located to the groove formed on one side of the stopper, the manual switch is turned off and stopped Headrest. The method of claim 9, wherein the automatic switch A fixed contact mounted to one side of the side cover and electrically connected to the outside of the headrest; A floating contact interposed between the fixed contact and the side cover; And Located through the side cover, the headrest characterized in that it comprises a ball for electrically connecting the floating contact and the fixed contact by moving the flow contact in accordance with the contact with the fixed gear. Iii) driver's boarding confirmation sensor on step; Ii) a first photo sensor operation step of sensing the head of the driver after step iii); Iii) a headrest raising step by the height adjusting motor after step ii); Iii) determining whether the driver's head is detected at step iii); Iii) rotating the height adjustment motor to lower the headrest when the upper head of the driver is not sensed in the step iii); Iii) stopping the operation of the height adjusting motor after a predetermined time has elapsed in step iii), and turning on a second photo sensor for sensing the back of the driver; And Iii) rotating the headrest when the second photo sensor does not detect the back of the driver in step iii). Iii) the on-boarding detection sensor of the occupant; Ii) rotating the headrest leaned by driving the first motor after step iii); Iii) a first photo sensor operation step of detecting a passenger's head after step ii); Iii) raising the headrest vertically by driving the height adjustment motor after step iii); Iii) determining whether the occupant's head is detected after step iii); Iii) rotating the height adjustment motor to lower the headrest when the upper head of the occupant is not sensed in the step iii); Iii) turning on a second photo sensor for sensing the back of the driver; And And iii) rotating the headrest by driving the first motor when the second photo sensor does not detect the back of the driver in step iii). 13. The method of claim 12, If the occupant confirmation sensor is off after the step iii), the headrest control method characterized in that the headrest is rotated by the drive of the first motor to bow. Iii) turning on the vehicle driver sensor; Ii) adjusting the position of the mounting portion by turning on the second motor which rotates the mounting portion after step iii); Iii) after said step ii) turning on a third motor which draws out a detection camera for detecting a blink of the driver; Iii) determining whether to set a normal blink value for each driver after step iii); Iii) comparing the first blink time of the driver measured in real time for a predetermined time to a preset reference value when the eye blink reference value is not set in step iii); And And d) generating a drowsy driving warning sound when the first eye blink time is less than a reference value in step iii). The method of claim 14, V) comparing the driver's second blink time to a preset reference value after step iii); Iii) generating a drowsy driving warning sound and vibrating the headrest when the second blink time is less than a reference value in step iii); Iii) comparing said driver's third blink time to a preset reference value after said step iv); And D) drowsiness driving warning sound generation, headrest vibration, vehicle speed control, and lighting an emergency light when the third blink time is less than a reference value in step iii). The method of claim 14, When setting the eye blink reference value in step iii) Inputting a normal blink time of a driver using a detection camera; And Drowsiness operation prevention method comprising the step of turning on the setting button. Iii) turning on the driver sensor and seat switch; Ii) turning on the vehicle after step iii) and driving the second motor to rotate the mounting unit; Iv) driving the third motor after the step ii) to withdraw the connecting part equipped with the breathalyzer; Iii) entering a password after step iv) and measuring the alcohol concentration; Iii) determining whether the password is correct after step iii); Iii) determining whether the alcohol concentration is within an acceptable range if the password is correct in step iii); Iii) maintaining the brake pedal operable if the alcohol concentration in step iv) is within an acceptable range; And V) moving the connection unit to an initial position after the step v). The method of claim 17, If the wrong number of passwords in step iii) exceeds the set number Generating an emergency light and an alarm sound; Turning off the vehicle starting: and And determining whether the off time of the vehicle start exceeds a set time.

Images