KR20120060511A - Apparatus and method for warning collision in vehicle - Google Patents

Abstract

PURPOSE: An apparatus and a method for generating warning signals to inform the collision of vehicles are provided to generate warning signals with respect to the collision of the vehicles by comparing the moving paths and the estimated passing timing of the vehicles. CONSTITUTION: An apparatus for generating warning signals to inform the collision of vehicles includes a moving path information obtaining unit(11), a speed information obtaining unit(12), a controlling unit(13), and a radiofrequency transmitting and receiving unit(14). The moving path information obtaining unit obtains the moving path information of a corresponding vehicle at an intersection. The speed information obtaining unit obtains the speed information of the corresponding vehicle. The controlling unit calculates the estimated passing timing of the corresponding vehicle at the intersection and compares the estimated passing timing of the corresponding vehicle at the intersection with the moving path information and the estimated passing timing of another vehicle. Based on the comparison result, the collision of the vehicles is informed.

Description

Vehicle collision warning device and its method {APPARATUS AND METHOD FOR WARNING COLLISION IN VEHICLE}

The present invention relates to a collision warning device and a method of a vehicle, and more particularly, to approach another vehicle through the vehicle-to-vehicle communication with the route information and intersection estimated passage time of the own vehicle as it approaches an intersection. The present invention relates to a vehicle collision warning device and a method for warning a collision of a vehicle by comparing the received movement route information and the estimated passage time with the movement route information and the estimated passage time of the own vehicle.

In general, a safety distance that can prevent a collision with a preceding vehicle is defined according to the speed of each vehicle. When the speed of the vehicle is slow, a short braking distance is required, but a longer braking distance is required for a vehicle traveling at high speed.

However, in a situation where it is difficult to check the position of the preceding vehicle during the operation of the own vehicle, it is not easy for the driver to maintain such a safety distance. That is, in spite of the operation of suddenly braking immediately before the collision with the preceding vehicle, the collision cannot be avoided if the vehicle distance is not maintained by the braking distance.

Therefore, in order to prevent the collision and safe driving of the vehicle, it is necessary to secure a safety distance to cope with the sudden situation of the preceding vehicle.

Recently, a device for preventing various safety accidents that may occur while driving has been developed and mounted on a vehicle, and related arts include a front collision warning device that warns of a danger of collision between a host vehicle and a preceding vehicle. For example, there is a lateral collision warning device that warns of the danger of collision between the vehicle and the side object.

The collision warning device is a device for securing the safety of the vehicle and the driver in a blind spot where the driver's field of vision does not reach when changing the driving lane of the vehicle, parking or driving, there is a possibility of collision using an ultrasonic sensor or a laser radar. Detects the presence of obstacles.

However, the conventional collision warning device has a problem in that it is impossible to predict and prevent collisions between vehicles in a protruding situation that may occur at an intersection or the like during actual driving of the vehicle.

In order to solve the problems of the prior art as described above, the present invention transmits the movement path information of the own vehicle and the estimated passage time of the intersection to another vehicle through the inter-vehicle communication as the proximity to the intersection, and also the movement route received from the other vehicle By comparing the information and the estimated passing time with the vehicle's moving route information and the estimated passing time, the vehicle is warned so that the collision at the intersection can be prevented and the collision prevention can be realized through the moving route information. An object of the present invention is to provide a collision warning device and a method thereof.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to an aspect of the present invention, there is provided a collision warning apparatus for a vehicle, comprising: movement route information obtaining means for obtaining movement route information at an intersection; Speed information obtaining means for obtaining speed information of the vehicle; After calculating the estimated passage time at the intersection based on the movement route information obtained by the movement route information obtaining means and the velocity information obtained by the speed information obtaining means, the movement route information and the estimated passage time received from another vehicle. Control means for determining and warning whether or not the vehicle collides with the; And wireless transmission / reception means for transmitting the movement route information acquired by the movement route information obtaining means and the estimated passage time calculated by the control means to the other vehicle, and receiving the movement route information and the estimated passage time from the other vehicle. do.

In addition, the method of the present invention for achieving the above object, in a vehicle collision warning method, the step of acquiring the movement path information at the intersection; Obtaining speed information of the vehicle; Calculating an estimated passing time at the intersection based on the obtained movement path information and speed information; A collision determination step of determining whether the vehicle collides by comparing the obtained movement route information and the calculated estimated passage time with the movement route information received from the other vehicle and the estimated passage time; And outputting an alarm sound when a collision with another vehicle is expected.

As described above, the present invention transmits the moving path information of the own vehicle and the estimated passage time of the intersection to another vehicle through the inter-vehicle communication as the proximity to the intersection, and also the movement route information and the estimated passing time received from the other vehicle. By warning the collision of the vehicle compared to the movement route information and the estimated passage time, there is an effect that can prevent the collision at the intersection in advance.

In addition, the present invention transmits the movement path information of the vehicle and the estimated passage time of the intersection to other vehicles through the inter-vehicle communication as the proximity to the intersection, and also the movement route information and the estimated passage time received from the other vehicle movement route information of the vehicle And by warning the collision of the vehicle compared to the estimated passage time, there is an effect that can realize accurate collision prevention through the movement route information.

1 is a configuration diagram of an embodiment of a collision warning device for a vehicle according to the present invention;
2 is a flow chart of an embodiment of a collision warning method for a vehicle according to the present invention;
Figure 3 is an exemplary view showing each area in the intersection according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It can be easily carried out. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration of an embodiment of a collision warning device of a vehicle according to the present invention.

As shown in FIG. 1, a collision warning apparatus for a vehicle according to the present invention includes a movement path information acquisition unit 11, a speed information acquisition unit 12, a control unit 13, and a radio transceiver (RF transceiver) 14. ).

Referring to each of the above components, first, the movement route information acquisition unit 11 acquires movement route information at a corresponding intersection among the movement routes from the starting point to the destination set by the driver in cooperation with the navigation system. That is, the movement route information acquisition unit 11 acquires the movement route coordinate values at the intersection in cooperation with the navigation system.

The movement path information acquisition unit 11 may solve the disadvantage of warning the collision unconditionally when there is a vehicle entering the intersection by obtaining the movement path information at the intersection.

The speed information acquisition unit 12 acquires the speed information of the vehicle in cooperation with the ECU (Electronic Control Units) or the navigation system of the vehicle.

The control unit 13 calculates an estimated passage time at the intersection based on the movement route information at the intersection obtained by the movement route information obtaining unit 11 and the velocity information obtained by the speed information obtaining unit 12.

In addition, the controller 13 notifies the driver of the collision of the vehicle by comparing the movement route information and the estimated passage time received from another vehicle with the movement route information and the estimated passage time of the own vehicle.

Since the control unit 13 warns the collision of the vehicle by using the movement route information and the estimated passage time, it can prevent unnecessary collision warning.

Hereinafter, the controller 13 will be described in more detail with reference to FIG. 3.

The control unit 13 checks which area the moving path coordinates acquired by the moving path information obtaining unit 11 correspond to, and then displays the corresponding area information and the estimated passing time through the wireless transmitting / receiving unit 14 in another vehicle. Send by

That is, as shown in FIG. 3, the center of the intersection is divided into a first region, a second region, a third region, and a fourth region. In this case, the center circle is excluded from each area.

Therefore, the controller 13 may know the area in which the movement path coordinates of the host vehicle are included.

For example, if the first vehicle is approaching an intersection in the west direction, and the second vehicle is approaching an intersection in the south direction, the second vehicle may leave the first and third regions 5 minutes after the first vehicle. Receiving information to pass (turn left after 5 minutes at the intersection) and the first vehicle receives information (turn right after 5 minutes at the intersection) after passing the fourth area from the second vehicle after 5 minutes, the first vehicle and the first The two vehicles compare the area information once, and if there is an overlapping area, the passing time is compared to determine whether or not the final collision occurs.

In the above example, it is determined that the passing time is within the collision range but the collision does not occur because the passing regions are different from each other.

As a result, the control unit 13 does not warn of the collision regardless of the estimated passage time unless the movement route information (pass region) of the own vehicle and the movement route information (pass region) at the intersection received from another vehicle do not coincide with each other. At this time, if the moving path information at the intersection coincides with each other, the estimated passage time is compared to warn the collision if it is within the collision range, and not warn if it is not within the collision range.

In addition, the control unit 13 transmits the movement route information and the estimated passage time at the intersection to the other vehicle located in the communication area through the wireless transceiver 14.

At this time, the control unit 13 controls the wireless transceiver 14 to transmit the moving path information and the estimated passing time of the host vehicle from 400m point to enter the intersection, for example.

The wireless transceiver 14 is a short-range communication module that performs communication between vehicles through wave, Bluetooth, ZigBee, and infrared communication.

In addition, the present invention further includes an alarm sound output unit (not shown), and when the control unit 13 determines that a collision with another vehicle will occur, the alarm sound under control of the control unit 13. Outputs

In this case, the driver may be linked with the navigation system to allow the driver to visually recognize the crash alert sound as well as hear it.

2 is a flowchart illustrating a collision warning method of a vehicle according to the present invention.

First, the movement route information acquisition unit 11 acquires movement route information at an intersection (201).

The speed information acquisition unit 12 obtains speed information of the vehicle (202).

Thereafter, the controller 13 calculates an estimated passage time at the intersection based on the movement path information acquired by the movement path information obtaining unit 11 and the speed information obtained by the speed information obtaining unit 12 (203). .

The controller 13 determines whether the vehicle collides by comparing the obtained moving path information and the calculated estimated passing time with the moving path information and the estimated passing time received from the other vehicle (204).

Thereafter, when a collision with the other vehicle is expected, an alarm sound is output (205).

The present invention can reduce the accident by warning the driver in advance of the collision at the intersection, it is possible to accurately predict the collision by comparing the movement path information and the estimated passage time when the collision prediction at the intersection, and also the movement route information By judging whether there is a collision, there is an advantage of being able to quickly determine whether there is a collision.

On the other hand, the method of the present invention as described above can be written in a computer program. And the code and code segments constituting the program can be easily inferred by a computer programmer in the art. In addition, the written program is stored in a computer-readable recording medium (information storage medium), and read and executed by a computer to implement the method of the present invention. The recording medium may include any type of computer readable recording medium.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

11: moving path information acquisition unit 12: speed information acquisition unit
13 control unit 14 wireless transceiver

Claims (5)

Moving path information obtaining means for obtaining moving path information at an intersection;
Speed information obtaining means for obtaining speed information of the vehicle;
After calculating the estimated passage time at the intersection based on the movement route information obtained by the movement route information obtaining means and the velocity information obtained by the speed information obtaining means, the movement route information and the estimated passage time received from another vehicle. Control means for determining and warning whether or not the vehicle collides with the; And
Wireless transmission and reception means for transmitting the movement route information obtained by the movement route information obtaining means and the estimated passage time calculated by the control means to the other vehicle, and receiving the movement route information and the estimated passage time from the other vehicle.
Collision alarm device of a vehicle comprising a.
The method of claim 1,
Wherein,
If the movement route information of the own vehicle and the movement route information of the other vehicle do not coincide with each other, the collision is not warned regardless of the estimated passage time. The collision warning device of a vehicle, wherein the collision warning device is not warned unless it is within a collision range.
The method according to claim 1 or 2,
Alarm sound output means for outputting an alarm sound when the control means determines that a collision with the other vehicle will occur
Collision alarm device of the vehicle further comprising.
Obtaining movement path information at an intersection;
Obtaining speed information of the vehicle;
Calculating an estimated passing time at the intersection based on the obtained movement path information and speed information;
A collision determination step of determining whether the vehicle collides by comparing the obtained movement route information and the calculated estimated passage time with the movement route information received from the other vehicle and the estimated passage time; And
Outputting an alarm sound when a collision with another vehicle is expected
Collision alarm method of a vehicle comprising a.
The method of claim 4, wherein
The collision determination step,
Comparing the movement route information of the own vehicle with the movement route information of the other vehicle;
Determining that there is no collision regardless of the estimated passage time if the movement path information does not coincide with each other;
Comparing the estimated passing time when the moving path information is identical to each other;
Determining that there is a collision if the estimated transit time is within a collision range;
Determining that there is no collision if the estimated passage time is not within a collision range;
Collision alarm method of a vehicle comprising a.

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