KR20150056323A - Apparatus for displaying road guidance information using head-up display and method thereof - Google Patents

Abstract

The present invention relates to an apparatus for displaying road guidance information using head-up display and a method thereof. The apparatus includes a head-up display; a camera part to shoot the image of the front side of a car including the car lane; a distance sensor part to detect the distance between the front side or side part barrier and the car; and a control part which displays an adjusted shape as augmented reality on the screen of the head-up display after adjusting the shape of the road guidance carpet including the direction information in the form of the arrow mark or the similar one according to the measured distance by detecting the current inside lane and the object lane by analyzing the information detected from at least one out of the camera part, the distance sensor part, and the devices randomly installed in the car and TBT(turn by turn) information and measuring the distance between the current car and the car running on the object lane in advance.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a guidance information display apparatus and a method for displaying a guidance information using a head-

The present invention relates to an apparatus and method for displaying route guidance information using a head-up display, and more particularly, to an apparatus and method for displaying a route guidance information And more particularly, to an apparatus and method for displaying route guidance information using a head-up display.

In recent years, most vehicles have been equipped with a navigation system, which allows the driver to provide the destination and route guidance. In recent years, the user has also been able to project desired information to the windshield of the vehicle, Vehicles with a head-up display (HUD) are also on the market. Further, studies are being conducted to enable specific information to be displayed in the form of an augmented reality through the head-up display.

The Augmented Reality (AR) is a technique for superimposing a three-dimensional virtual object on the real world viewed by the user, and displays a virtual world having additional information in real time in a real world together as a single image. (Mixed Reality, MR).

However, the conventional head-up display merely displayed navigation information on the head-up display or displayed the guidance information in dependence on a high-precision three-dimensional map. Therefore, it is relatively expensive to display the route guidance information. Also, when the navigation information is displayed on the head-up display, the actual lane does not coincide with the position of the vehicle (the position of the lane where the actual vehicle exists among several lanes) There has been a problem of displaying simple route guidance information without considering the actual running vehicle's surrounding information.

For example, when it is assumed that a vehicle traveling in a first lane on a three-lane road must make a right turn at a distance of 1 km ahead, the conventional head-up display only displays information indicating that it should turn to the right at 1 km ahead. That is, a case where a vehicle is present or absent in front of a driving lane is not taken into consideration, and a vehicle traveling in the right lane (or the left lane) at the time of right turning (or left lane) The guide information is displayed as it is. In other words, the conventional head-up display only displays the simple guidance information, and the information for preventing the safety accident is reflected on the guidance information and can not be displayed.

Here, the lane is a line drawn on the motorway at regular intervals along the driving direction, and is displayed at the boundary point to distinguish the lane from the lane. The lane means the part of the roadway divided by the lane so that the vehicle passes through the designated part of the road in one line. Since lane and lane meanings are practically used without being clearly distinguished from each other, lanes and lane roads are also used for the sake of convenience in this embodiment.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open No. 10-2009-0076242 (published on July 13, 2009, a head-up display device for a vehicle and a method for controlling the operation thereof).

SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the above-described problems, and it is an object of the present invention to provide a road-guidance display system capable of displaying road guidance information as an augmented reality, An information display apparatus and method are provided.

According to an aspect of the present invention, there is provided an apparatus for displaying route guidance information using a head-up display, the apparatus comprising: a head-up display; A camera unit for capturing an image of the front of the vehicle including the lane; A distance sensor unit for detecting a distance between the front or side obstacle and the vehicle; And information on TBT (Turn By Turn) information detected in at least one of the camera unit, the distance sensor unit, and an arbitrary device installed in the vehicle to detect a current driving lane and a target lane, A control unit for calculating a distance to a running vehicle and adjusting the shape of the road guide carpet including direction information in the form of an arrow or the like according to the calculated distance to display the image as an augmented reality on the screen of the head up display; And a control unit.

In the present invention, the arbitrary device installed in the vehicle may include at least one of a Smart Cruise Control (SCC), a navigation device, and a steering angle detecting device.

In the present invention, the control unit may use at least one or more information of the present driving lane information, the vehicle heading angle, the target lane information, the TBT information, the front vehicle information, the side vehicle information, The carpets are displayed in the form of an augmented reality by adjusting at least one of the direction, shape, size, length, color, and special effect of the carpage to be displayed on the current driving lane.

In the present invention, the carpet is route guidance information or route guidance information indicated by the augmented reality, and is the route guidance information displayed in accordance with the position of the lane as if drawn on the floor by an actual vehicle.

In the present invention, the control unit displays, as the augmented reality, the carpet adjusted appropriately within the distance from the preceding vehicle when the preceding vehicle is within the predetermined maximum distance in the present driving lane, The carpet corresponding to the maximum distance is displayed as an augmented reality.

In the present invention, the control unit displays, as the augmented reality, the carpet adjusted appropriately within the distance between the current driving vehicle and the side vehicle when the side vehicle traveling ahead of the target lane is within the predetermined maximum distance, And displays the turning or entering carpet corresponding to the maximum distance as an augmented reality when the side vehicle is not within the preset maximum distance.

In the present invention, when the side vehicle traveling ahead of the target lane is within a predetermined distance, the controller displays the turning and entering carpet corresponding to the minimum distance as the augmented reality, and when the side vehicle is within the preset distance And displays the rotating or entering carpet corresponding to the maximum distance as an augmented reality.

According to another aspect of the present invention, there is provided a method of displaying route guidance information using a head-up display, comprising: detecting a current lane and a target lane on which a vehicle is traveling; Calculating a distance between a vehicle traveling in the current lane and a vehicle traveling first in the target lane; Adjusting the shape of the road guide carpet according to the calculated distance; And displaying the adjusted road guide carpet as an augmented reality on the screen of the head up display.

In the present invention, the step of displaying the road guide carpet as an augmented reality may include: displaying the current driving lane information, the vehicle heading angle, the target lane information, the TBT information, the forward vehicle information, the side vehicle information, At least one of a direction, a shape, a size, a length, a color, and a special effect of the road guide carpet to be displayed on the head-up display is adjusted using at least one of the information on the current driving lane .

In the present invention, the step of displaying the road guidance carpet as an augmented reality may include: when the control unit is within a preset maximum distance of the preceding vehicle in the current driving lane, the carpet adjusted to be within the distance from the preceding vehicle to the augmented reality And displays the carpet corresponding to the maximum distance as an augmented reality when the preceding vehicle is not within a preset maximum distance.

In the present invention, the step of displaying the road guide carpet as an augmented reality may further include the step of, when the side vehicle traveling in front of the target lane is within the predetermined maximum distance, Wherein the carpet is displayed as an augmented reality, and when the side vehicle is not within a predetermined maximum distance, the rotating or entering carpet corresponding to the maximum distance is displayed as an augmented reality.

In the present invention, the step of displaying the road guide carpet as an augmented reality may include: if the control unit is located within a preset distance of the side vehicle running ahead of the target lane, And displays the turning or entering carpet corresponding to the maximum distance as an augmented reality when the side vehicle is not within a predetermined distance.

According to the present invention, the guidance information is displayed as an augmented reality by reflecting the actual surroundings of the vehicle without depending on the high-precision three-dimensional map, thereby enabling the driver to more reliably change the lane at the correct position. Also, by using the information of the existing system installed in the vehicle, the guidance information is matched to the lane, and the augmented reality is implemented and displayed at a low cost, so that stable lane change and stable straight line travel can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a schematic configuration of a lane change information display apparatus using a head-up display according to an embodiment of the present invention; FIG.
FIGS. 2 to 4 are flowcharts illustrating a method for displaying route guidance information using a head-up display according to an embodiment of the present invention.
FIG. 5 is an exemplary view for explaining a method of displaying route guidance information in consideration of a nearby vehicle using a carpet according to an embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an apparatus and method for displaying route guidance information using a head-up display according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a diagram illustrating a schematic configuration of a lane change information display apparatus using a head-up display according to an embodiment of the present invention.

1, a lane change information display apparatus 100 using a head-up display includes a camera unit 110, a distance sensor unit 120, a vehicle speed detector 130, an information receiver 140, 150 and a head-up display 140.

The camera unit 110 includes at least one camera including a digital image sensor as means for capturing an image of the front of the vehicle. The camera unit 110 captures an image of a view direction (or a direction in which a vehicle runs) to acquire an image for detecting a lane (or a lane) and a pedestrian (or an obstacle).

For example, the camera may include a CMOS camera (or a CCD camera).

For reference, the CMOS camera (or a CCD camera) captures light similar to that of a human eye because it acts to sense and project light in a visible light region.

The distance sensor unit 120 may include at least one distance sensor.

For example, the distance sensor may include a LIDAR sensor.

However, the present invention is not limited to this, and may include other types of distance sensors (e.g., an ultrasonic distance sensor, an infrared distance sensor, etc.).

For reference, the LIDAR (Light Detection And Ranging) sensor is a sensor that can be used to measure the position coordinates of a reflector by emitting a laser pulse and measuring the time of reflected and returning.

The distance sensor unit 120 can detect a signal reflected from a pedestrian (or an obstacle) in a viewing direction (or a vehicle traveling direction) to detect a distance between the pedestrian (or obstacle) and the vehicle, have.

In this embodiment, when the lane-changing carpet (or the road guide carpet) is outputted in accordance with the position of the lane (or the lane), the car and the front obstacle (or the lateral obstacle) You can adjust the length of the carpet (eg, carpets, rotations, and carpets entering straight ahead) depending on the distance of the carpet.

Here, the carpet is road guidance information (left turn, right turn, U-turn, straight ahead, etc.) indicated by the augmented reality, which is displayed in accordance with the position of the lane, (Route guidance information displayed in the air instead of being displayed in accordance with the lane position).

The vehicle speed detector 130 detects the running speed of the vehicle and outputs the detected speed to the controller 150.

The information receiving unit 140 selectively receives information detected from a specific system (e.g., SCC-Smart Cruise Control, TBT-Turn By Turn, steering angle detecting apparatus, etc.) installed in the vehicle as needed.

The control unit 150 includes a front vehicle recognition unit 151, a side vehicle recognition unit 152, a lane determination unit 153, and a carpet output unit 154. The configuration units 151 to 154 may perform the corresponding functions separately or may perform all the functions integrally in the control unit 150. [ For convenience, the functions of the respective constituent units 151 to 154 will be described separately in this embodiment.

The controller 150 calculates the vehicle heading angle, the lateral direction, and the longitudinal position.

That is, the controller 150 analyzes the information received or detected from the camera 110, the distance sensor 120, the vehicle speed detector 130, and the information receiver 140 to detect the current vehicle position .

Further, the controller 150 combines the detected information to determine a lane (lane) where the current vehicle is located. (Not shown) for detecting lanes in other ways not described above as well as sensors (such as a camera, a LIDAR sensor, etc.) described above for determining a more accurate lane (lane) at this time. Alternatively, necessary information may be received from at least one or more sensors (not shown) installed in the vehicle and used for lane detection. Information received from the information receiving unit 140 may be received and used for lane detection.

It is assumed that the information on the number of lanes per road is already included in the map data of the navigation system or is included as separate database information.

Up display for outputting conventional navigation information does not consider the lane (lane) in which the vehicle is located and does not consider the current vehicle running on the front or side of the current driving vehicle, The coordinates of the image on the screen) and the direction of travel.

However, the apparatus according to an embodiment of the present invention displays a carpet for guiding the road in consideration of the present lane (lane) where the vehicle is located and the surrounding vehicles traveling on the front or side of the present driving vehicle.

For example, as shown in FIG. 5, the apparatus according to an embodiment of the present invention detects in advance a lane (i.e., a target lane) to be driven by the current vehicle from TBT (Turn by Turn) information, (Or the right lane on which the present vehicle is to be driven), the straight carpet is displayed in consideration of the preceding vehicle of the same driving lane. When the present vehicle is turning left (or turning right) Considering the forward vehicle, the rotating carpet in the corresponding direction is displayed as augmented reality according to the position of the actual lane.

At this time, the destination lane is set based on TBT (Turn By Turn) information input from the navigation (or any device that indicates the direction to be driven or the target lane).

The front vehicle recognition unit 151 of the control unit 150 performs combination analysis on the information received or detected from the camera unit 110, the distance sensor unit 120, the vehicle speed detection unit 130, and the information receiving unit 140 The distance to the preceding vehicle, the speed, and the like.

The side vehicle recognition unit 152 of the control unit 150 analyzes the information and senses the distance, the speed, and the like from the side vehicle (the vehicle running in front of or behind the side lane).

The lane determining unit 153 of the controller 150 determines the current lane and the target lane based on the information.

Also, the carpet output unit 154 of the controller 150 may control the head-up display (e.g., the head-up display) based on the determined current lane information, the target lane information, the TBT information, the forward vehicle information, (Target lane) that the vehicle is currently driving, determining the direction, shape, size, length, color, and special effects (e.g., flickering, dimming, And augmented reality.

The front vehicle recognizing unit 151, the side vehicle recognizing unit 152, the lane determining unit 153 and the carpet output unit 154 repeatedly perform the carpet output process until the vehicle finishes moving to the target lane. When the vehicle is moved to the destination lane, the output process of the carpet is finished.

In addition, when the heading angle of the vehicle changes due to lane change, rotation, or entry, the controller 150 reflects the heading angle information to the output of the carpet to determine the position of the actual road (the relative position of the road to the vehicle) Change the shape of the carpet.

When the vehicle exists in the driving lane or the target lane, the shape of the carpet is changed in consideration of the vehicle.

The head-up display 160 displays a carpet representing a straight line, a lane change, a rotation and an entry direction outputted from the carpet output unit 154 as an augmented reality according to the position of the lane on which the vehicle is currently traveling, A vehicle traveling in front of the lane or a vehicle traveling in a side lane).

FIGS. 2 to 4 are flowcharts illustrating a method of displaying route guidance information using a head-up display according to an exemplary embodiment of the present invention. FIG. 5 is a flowchart illustrating a method of displaying route guidance information, Fig. 8 is an illustration for explaining a method of carpeting; Fig. Hereinafter, a method for displaying route guidance information will be described with reference to FIGS. 2 to 5. FIG.

The carpet display method when the vehicle goes straight ahead will be described with reference to Fig.

2, the controller 150 receives the TBT information from a navigation device (not shown) already mounted on the vehicle (or any device that indicates a driving direction or a target lane).

The control unit 150 determines that the vehicle is going straight through the TBT information (S101).

The TBT information includes route guidance information (left turn, right turn, U-turn, straight ahead, etc.) corresponding to the current time in addition to the map data displayed through navigation and route guidance information to be performed in the next time.

The control unit 150 detects the current position of the vehicle and determines the current driving lane (or current lane) and calculates (or detects) the distance to the vehicle (forward vehicle) traveling in front of the present driving lane S102).

(That is, the angle of the vehicle itself) and the lateral position (that is, the distance between both sides of the vehicle lane and the side lane of the vehicle) in the case where there is a preceding vehicle within a predetermined distance set in advance (S106).

The control unit 150 graphically implements route guidance information (straight carpet) as an augmented reality within the distance in consideration of distance and speed with respect to the preceding vehicle (S107) The carpet is displayed (S108).

However, if there is no preceding vehicle within a predetermined distance determined according to the calculation (or detection) result (S102) (NO in S103), that is, if there is a preceding vehicle and the vehicle travels farther than the predetermined distance, (I.e., the angle of the vehicle itself) and the lateral position (i.e., the distance between the two lanes) (S104).

And a preset maximum distance (e.g., the maximum distance of the smart cruise control (SCC)) for carpet display.

In step S108, the control unit 150 displays the carpet on the head-up display 160 by graphically implementing the guidance information (straight carpet) corresponding to the maximum distance as augmented reality (S107).

For example, as shown in FIG. 5, when it is assumed that the current vehicle is traveling in a secondary lane of a three-lane road, and the vehicle continues to travel straight ahead, the control unit 150 determines that the preceding vehicle If the distance is within the maximum distance, the carpet adjusted appropriately within the distance from the preceding vehicle is displayed as an augmented reality. If the preceding vehicle is not within the predetermined maximum distance, the carpet corresponding to the maximum distance is displayed as an augmented reality.

Hereinafter, a carpet display method when the vehicle rotates will be described with reference to FIGS. 3 and 4. FIG.

3, the controller 150 receives the TBT information from a navigation device (not shown) already mounted on the vehicle (or any device that indicates a driving direction or a target lane).

It is determined that the vehicle is to be rotated (left / right turn) through the TBT information (S201).

When the distance from the current position to the point to be rotated is greater than or equal to a predetermined carpet output distance (for example, 50 meters) (S202), the control unit 150 controls the vehicle (side vehicle) traveling in front of the next lane (Or detects) the distance (S203).

If there is a preceding vehicle within a predetermined distance set in the next lane (the target lane) according to the calculation (or detection) result S203 (YES in S204), the heading angle of the vehicle (i.e., the angle of the vehicle itself) (I.e., the distance between the two lanes) (S207).

The control unit 150 graphically implements route guidance information (e.g., turn-on and turn-on carpet) in the augmented reality within the distance in consideration of the distance and the speed with respect to the next lane ) The heading display 160 displays the rotating and entering carpet (S209).

However, when there is no side vehicle within a predetermined distance (NO in S204) according to the calculation (or detection) result S203, that is, even if there is a side vehicle, if the vehicle runs away from a predetermined distance or more, (I.e., the angle of the vehicle itself) and the lateral position (i.e., the distance between the two lanes) (S205).

The control unit 150 detects a preset maximum distance (e.g., the maximum distance of the smart cruise control (SCC) or the rotation from the current position, the maximum distance to the entry point) for displaying the turning and entering carpet (S206).

The control unit 150 graphically implements the guidance information (turning and entering carpet) corresponding to the maximum distance as augmented reality (S208), and displays the turning and entering carpet through the head-up display 160 (S209).

For example, as shown in FIG. 5, if it is assumed that the current vehicle is traveling in a secondary lane of a three-lane road and the vehicle is going to change its lane to the next lane (left or right lane) ) Indicates a carpet appropriately adjusted within a distance from the side vehicle when the vehicle (side vehicle) traveling in front of the lane to be changed is within a predetermined maximum distance, and the lateral vehicle is displayed as augmented reality, , The turning and entering carpet corresponding to the maximum distance is indicated as an augmented reality.

4, the control unit 150 may be a navigation device (not shown) (or a device for notifying a driving direction or a target lane) that is already mounted on the vehicle TBT information.

It is determined that the vehicle is to be rotated (left / right turn) through the TBT information (S301).

If the distance from the current position to the point of rotation is less than the predetermined carpet output distance (for example, 50 meters) (S302), the control unit 150 determines whether the vehicle (side vehicle) traveling in front of the next lane (S303).

If there is a preceding vehicle within a predetermined distance from the next lane (the target lane) (S304), the control unit 150 determines that the threshold value (i.e., (For example, 1m to 20m) (S305). Then, the heading angle of the vehicle (i.e., the angle of the vehicle itself) and the lateral position (i.e., the distance between the two lanes) are calculated (S306).

The control unit 150 displays the route guidance information (e.g., turn, entry carpet) as an augmented reality within the minimum distance (i.e., the threshold value) in consideration of the distance and speed with the next lane (S307), and displays the turning and entering carpet through the head-up display 160 (S308).

However, when there is no side vehicle within a predetermined distance determined according to the calculation (or detection) result (S303) (NO in S304), that is, even if there is a side vehicle, if the vehicle travels farther than the predetermined distance, (I.e., the angle of the vehicle itself) and the lateral position (i.e., the distance between the two lanes) (S306).

The control unit 150 may generate navigation information (e.g., a maximum distance of the smart cruise control (SCC) or a maximum distance from the current position to the turning point and the entry point) (Step S307), and displays the turning and entering carpet through the head-up display 160 (S308).

For example, as shown in FIG. 5, if it is assumed that the current vehicle is traveling in a secondary lane of a three-lane road and the vehicle is going to change its lane to the next lane (left or right lane) ) Indicates that the vehicle is moving in front of the lane to be changed (the side vehicle) within a preset distance, the turning carpet corresponding to the minimum distance is displayed as the augmented reality, and when the side vehicle is not within the preset distance, The turning and entering carpets corresponding to the maximum distance are indicated as augmented reality.

For reference, the maximum distance for displaying the carpet by the straight line and the maximum distance for displaying the turning and entering carpet may be set differently.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand the point. Accordingly, the technical scope of the present invention should be defined by the following claims.

110: camera unit 120: distance sensor unit
130: vehicle speed detector 140:
150: Control unit 151: Front vehicle recognition unit
152: side vehicle recognition unit 153: lane determination unit
154: carpet output section 160: head-up display

Claims (12)

Head-up display;
A camera unit for capturing an image of the front of the vehicle including the lane;
A distance sensor unit for detecting a distance between the front or side obstacle and the vehicle; And
(TBT) information by detecting at least one of the camera unit, the distance sensor unit, and any device installed in the vehicle, detects the present driving lane and the target lane, And controlling the shape of the road guide carpet including the direction information in the form of an arrow or the like according to the calculated distance to display the image as an augmented reality on the screen of the head up display And displaying the guidance information on the display unit.
The vehicle according to claim 1,
(SCC), a navigation system, and a steering angle detecting apparatus.
The apparatus of claim 1,
The direction of the carpage to be displayed on the head-up display is determined by using at least one of the present driving lane information, the vehicle heading angle, the target lane information, the TBT information, the front vehicle information, the side vehicle information, At least one of a shape, a size, a length, a color, and a special effect is adjusted so that the augmented reality is displayed in accordance with the position of the present driving lane.
The carpet according to claim 1,
Wherein the route guidance information is road guidance information or route guidance information that is displayed as augmented reality and is displayed along with the position of the lane as if it were drawn on the floor of an actual vehicle.
The apparatus of claim 1,
If the forward vehicle is within the predetermined maximum distance in the current driving lane, the carpet adjusted to within the distance from the forward vehicle is displayed as the augmented reality,
And displays the carpet corresponding to the maximum distance as an augmented reality when the front vehicle is not within a preset maximum distance.
The apparatus of claim 1,
If the side vehicle traveling ahead of the target lane is within the preset maximum distance, the carpet adjusted to within the distance between the present driving vehicle and the side vehicle is displayed as an augmented reality,
And displays the turning or entering carpet corresponding to the maximum distance as an augmented reality when the side vehicle is not within a preset maximum distance.
The apparatus of claim 1,
If the side vehicle traveling ahead of the target lane is within a predetermined distance, the turning and entering carpets corresponding to the minimum distance are displayed as augmented reality,
And displays the turning or entering carpet corresponding to the maximum distance as an augmented reality when the side vehicle is not within a preset distance.
The control unit detecting a current lane and a target lane on which the vehicle is traveling;
Calculating a distance between a vehicle traveling in the current lane and a vehicle traveling first in the target lane;
Adjusting the shape of the road guide carpet according to the calculated distance;
And displaying the adjusted route guidance carpet as an augmented reality on the screen of the head-up display.
The method of claim 8, wherein the step of displaying the road guide carpet as an augmented reality comprises:
Wherein the control unit controls at least one of the current driving lane information, the vehicle heading angle, the target lane information, the TBT information, the forward vehicle information, the side vehicle information, and the road lane number information, Wherein at least one of a direction, a shape, a size, a length, a color, and a special effect of the current driving lane is adjusted and displayed as an augmented reality according to the position of the present driving lane.
The method of claim 8, wherein the step of displaying the road guide carpet as an augmented reality comprises:
The control unit displays the carpet appropriately adjusted within the distance from the preceding vehicle as augmented reality when the preceding vehicle is within a predetermined maximum distance in the present driving lane and displays the carpet as augmented reality when the preceding vehicle is not within the predetermined maximum distance And displaying the corresponding carpet as an augmented reality.
The method of claim 8, wherein the step of displaying the road guide carpet as an augmented reality comprises:
The control unit displays the carpet adjusted to be within the distance between the current driving vehicle and the side vehicle as augmented reality when the side vehicle traveling ahead of the target lane is within a predetermined maximum distance, And displays the turning or entering carpet corresponding to the maximum distance as an augmented reality when the distance is not within the distance.
The method of claim 8, wherein the step of displaying the road guide carpet as an augmented reality comprises:
The controller displays the turning and entering carpets corresponding to the minimum distance as augmented reality when the side vehicle traveling ahead of the target lane is within a predetermined distance and displays the turning carpet as the augmented reality when the side vehicle is not within the preset distance, And the corresponding turning or entering carpet is displayed as an augmented reality.

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