KR20120019002A

KR20120019002A - Apparatus and method displaying trace of wheels and notifying crash using camera

Info

Publication number: KR20120019002A
Application number: KR1020100082066A
Authority: KR
Inventors: 권영찬
Original assignee: 현대모비스 주식회사
Priority date: 2010-08-24
Filing date: 2010-08-24
Publication date: 2012-03-06

Abstract

The present invention relates to a driving trajectory guidance and collision warning apparatus and method using a camera, the driving trajectory guidance and collision warning apparatus according to the present invention, the photographing unit for photographing the front or rear of the vehicle, obstacles located in front or rear of the vehicle A sensing unit for detecting a front wheel and a rear wheel track on the captured front image or the rear image so that the synthesized image is displayed, and the obstacle detected by the detection unit is positioned on at least one driving trajectory of the front wheel and the rear wheel. If so, it includes a control unit for transmitting a warning message of the possibility of contact or collision with the obstacle.

Description

Apparatus And Method Displaying Trace of Wheels and Notifying Crash Using Camera}

The present invention relates to a driving trajectory guidance and collision warning device and method using a camera, and more particularly to a device and method for showing the trajectory of all wheels when the vehicle is moving forward or backward.

Conventionally, no indication is made on the front image photographed by the front camera, and only the rear image photographed by the rear camera displays a trajectory through which the rear wheel of the vehicle passes.

In this case, when the rear image of the vehicle shows only the trajectory of the passing of the vehicle, if the front wheel does not display the trajectory of the passing, if there is an obstacle when reversing, the rear wheel of the vehicle passes the obstacle based on the trajectory of the passing vehicle, Since it may collide, there is a risk of damage to the vehicle.

In addition, since the trajectories of all the wheels of the vehicle are not displayed in the front image captured by the front camera when the vehicle proceeds forward, there is a risk of collision if the vehicle having no steering wheel alignment starts in a narrow area. If the radius of curvature of the rear wheel is narrow, there is a problem that does not inform the risk of contact in advance, if there are obstacles on the side and rear.

The present invention has been made in view of the above problems, and provides a driving trajectory guidance and collision warning device and method using a camera that can display the trajectory of the rear wheel and the front wheel on the image photographed by the front and rear cameras. Its purpose is to.

Another object of the present invention is to calculate the distance between the obstacle measured in the forward or backward of the vehicle and the trajectory of the front and rear wheels, and guide the driving trajectory using a camera that informs in advance whether or not the collision with the obstacle based on the calculated result And a collision warning device and method.

In order to achieve the above object, the driving trajectory guide and collision warning device according to an aspect of the present invention includes a photographing unit for photographing the front or rear of the vehicle; A detector detecting an obstacle located at the front or the rear of the vehicle; And synthesizing the front wheel and the rear wheel trajectory with the captured front image or the rear image so that the synthesized image is displayed, and when the obstacle detected by the sensing unit is located on at least one driving trajectory of the front wheel and the rear wheel, It includes a control unit for transmitting the possibility of contact or collision with the obstacle in a warning message.

According to another aspect of the present invention, a driving trajectory guide and collision warning method includes: displaying a front wheel and a rear wheel trajectory of the vehicle on a front image or a rear image of a photographed vehicle; And when an obstacle is detected at the front or rear of the vehicle and the detected obstacle is located on at least one driving trajectory of the front wheel and the rear wheel, transmitting a possibility of contact or collision with the obstacle as a warning message. Include.

According to the present invention, by informing the trajectories of all the wheels of the vehicle when moving forward and backward, the driver can intuitively know the direction of travel of the vehicle, and thus it is possible to easily determine whether there is contact with an obstacle.

In particular, it is possible to prevent damage to the vehicle due to the collision by notifying the collision with the obstacle in advance by calculating the distance between the measured obstacle and the front wheel and the rear wheel.

1 is a block diagram illustrating a driving trajectory guidance and collision warning device using a camera of the present invention.
2 is a flowchart illustrating a driving trajectory guidance and a collision warning method using a camera of the present invention.
3 to 6 are exemplary views for explaining a driving trajectory guidance and a collision warning method using a camera.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. And is intended to enable a person skilled in the art to readily understand the scope of the invention, and the invention is defined by the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that " comprises, " or "comprising," as used herein, means the presence or absence of one or more other components, steps, operations, and / Do not exclude the addition.

Hereinafter, a driving trajectory guide and collision warning apparatus using a camera according to an embodiment of the present invention will be described with reference to FIG. 1. 1 is a block diagram illustrating a driving trajectory guidance and collision warning apparatus using a camera of the present invention.

As shown in FIG. 1, the driving trajectory guide and collision warning apparatus using the camera of the present invention includes a detector 100, a camera 200, a controller 300, and a display unit 400.

The sensing unit 100 includes a front sensor 110 and a rear sensor 120, the front sensor 110 detects an obstacle located at the front of the vehicle, and the rear sensor 120 detects an obstacle located at the rear of the vehicle. Detect.

The camera 200 includes a front camera 210 and a rear camera 220, the front camera 210 photographs the front of the vehicle when the vehicle moves forward at a predetermined speed or less, and the rear camera 220 is If the vehicle is moving backwards, photograph the rear of the vehicle.

The control unit 300 synthesizes the front wheel and the rear wheel trajectory of the vehicle on the front image captured by the front camera 210, and synthesizes the front wheel and the rear wheel trajectory of the vehicle on the rear image captured by the rear camera 220. In addition, the controller 300 may synthesize the distance display line for each preset distance to each synthesized image.

In addition, when an obstacle is detected in front of the vehicle by the front sensor 110, the controller 300 measures the distance between the vehicle and the obstacle, calculates the distance between the measured obstacle and the driving trajectory of the front wheel and the rear wheel, If the calculation shows that the obstacle is on the driving trajectory of at least one of the front wheel and the rear wheel (when the vehicle moves forward, there is a possibility of contact or collision with the obstacle), the driver is warned in advance of the possibility of contact or collision with the obstacle and the rear sensor ( When an obstacle is detected at the rear of the vehicle by 120, the distance between the vehicle and the obstacle is measured, and the distance between the measured obstacle and the driving trajectory of the front wheel and the rear wheel are calculated, and the calculated obstacle is at least one of the front wheel and the rear wheel. If you are on one driving trajectory (possibly touch or collide with an obstacle when you back up), the driver may come in contact with or collide with an obstacle The advance warning.

The controller 300 may output a warning message for warning through the speaker, and may be output through the display unit 400.

The display unit 400 displays the synthesized image or displays a warning message.

The driving trajectory guide and the collision warning apparatus using the camera according to an embodiment of the present invention have been described above with reference to FIG. 1, and the following description will be made with reference to FIGS. 2 to 6. Describes driving trajectory guidance and collision warning. 2 is a flowchart illustrating a driving trajectory guide and collision warning method using a camera of the present invention, and FIGS. 3 to 6 are exemplary diagrams for explaining a driving trajectory guide and collision warning method using a camera.

As shown in FIG. 2, it is determined whether the vehicle reverses (S200). For example, in the case of the reverse gear, it is determined that the vehicle reverses.

When the vehicle moves backward, the rear camera 220 photographs the rear of the vehicle, and the rear sensor 120 detects an obstacle located at the rear of the vehicle (S210).

When the obstacle is detected by the rear sensor 120 (S220), the distance to the obstacle is measured, and the measured distance and the trajectory of the front wheel and the rear wheel are calculated (S230).

As a result of the calculation, if the obstacle is located on the driving trajectory of at least one of the front wheel and the rear wheel (S240), the warning of the possibility of contact or collision with the obstacle (S250).

For example, as shown in FIG. 3, when an obstacle is detected at the rear of the vehicle by the rear sensor 120, a distance from the obstacle is measured, a distance from the measured obstacle and a driving trajectory of the front wheel and the rear wheel are calculated. If the calculation indicates that the obstacle is on the driving trajectory of at least one of the front wheel and the rear wheel (if the vehicle is likely to touch or collide with the obstacle), the driver is warned in advance of the possibility of contact or collision with the obstacle.

However, if the obstacle is not detected as a result of the determination in step S220 or the obstacle is not located on the driving trajectory of the front wheel and the rear wheel as a result of the determination in step S240, the front wheel and the rear wheel trajectory are synthesized and displayed on the photographed rear image. (S260). For example, as shown in FIG. 4, the front wheel trajectory and the rear wheel trajectory are synthesized on the rear image and displayed on the display unit 400.

Meanwhile, as a result of the determination in step S200, when the vehicle does not retreat, it is determined whether the vehicle moves forward at a predetermined speed or less (S270).

As a result of the determination, when the vehicle moves forward at a predetermined speed or less, the front camera 210 photographs the front of the vehicle, and the front sensor 110 detects an obstacle located in front of the vehicle (S280).

When the obstacle is detected by the front sensor 110 (S220), the distance to the obstacle is measured, and the measured distance and the trajectory of the front wheel and the rear wheel are calculated (S230).

For example, as shown in FIG. 5, when the vehicle moves forward at a predetermined speed or less, when an obstacle is detected in front of the vehicle by the front sensor 110, the distance to the obstacle is measured and the distance to the measured obstacle is measured. Calculate the driving trajectory with the front wheel and the rear wheel, and if the obstacle shows that the obstacle is on the driving trajectory of at least one of the front and rear wheels (when there is a possibility of contact or collision with the obstacle when the vehicle is moving forward), Warn in advance of possible contact or collisions.

However, if it is determined in step S220 that no obstacle is detected or the result is determined in step S240, if the obstacle is not located on the driving trajectory of the front wheel and the rear wheel, the front wheel and the rear wheel trajectory are synthesized and displayed on the captured front image. (S260). For example, as shown in FIG. 6, the front wheel trajectory and the rear wheel trajectory are synthesized and displayed on the display unit 400. In addition, a distance display line may be synthesized for each predetermined distance and displayed on the display unit 400 by synthesizing the front wheel trajectory and the rear wheel trajectory.

As such, when the vehicle moves forward or backward, the driver can intuitively know the direction of the vehicle by displaying the trajectory of all the wheels, so that the driver can easily determine whether the vehicle is in contact with or collided with the obstacle, especially the measured distance from the obstacle. By calculating the trajectory between the wheel and the wheel, the vehicle can be prevented from being touched or crashed by notifying in advance of the possibility of contact or collision.

Although the configuration of the present invention has been described in detail with reference to the preferred embodiments and the accompanying drawings, this is only an example, and various modifications are possible within the scope without departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100: detection unit 110: front sensor
120: rear sensor 200: camera
210: front camera 220: rear camera
300: control unit 400: display unit

Claims

Shooting unit for photographing the front or rear of the vehicle;
A detector detecting an obstacle located at the front or the rear of the vehicle; And
The front wheel and the rear wheel trajectory are synthesized to the captured front image or the rear image so that the synthesized image is displayed. When the obstacle detected by the sensing unit is located on at least one driving trajectory of the front wheel and the rear wheel, Controls that convey warning messages about the possibility of contact or collision with obstacles
Traveling track guidance and collision warning device comprising a.

The method of claim 1,
The controller measures a distance from the obstacle, calculates a driving trajectory between the measured distance and the front wheel and the rear wheel, and the obstacle is located on at least one driving trajectory of the front wheel and the rear wheel based on the calculated result. Determining whether or not
Driving track guidance and collision warning device.

The method of claim 1,
The control unit outputs the warning message as a voice through a speaker mounted on the vehicle or on a screen mounted on the vehicle to inform the driver of the possibility of contact or collision with the obstacle.
Driving track guidance and collision warning device.

Synthesizing and displaying the front wheel and rear wheel trajectories of the vehicle on the front image or the rear image of the photographed vehicle; And
When an obstacle is detected at the front or rear of the vehicle and the detected obstacle is located on at least one driving trajectory of the front wheel and the rear wheel, transmitting a possibility of contact or collision with the obstacle as a warning message.
Driving trajectory guidance and collision warning method comprising a.

The method of claim 4, wherein the delivering step,
Measuring a distance to the obstacle;
Calculating a driving trajectory between the measured distance and the front wheel and the rear wheel; And
Determining whether the detected obstacle is located on a driving trajectory of at least one of the front wheel and the rear wheel based on the calculated result.
Driving trajectory guidance and collision warning method.

The method of claim 4, wherein the delivering step,
The warning message is provided to inform the driver of the possibility of contact or collision with the obstacle.
Outputting a voice through a speaker mounted on the vehicle; And
Outputting a screen mounted on the vehicle;
Driving trajectory guidance and collision warning method.