KR100820310B1 - Preventing apparatus and the same method of rear-end collision of a car - Google Patents

Abstract

A rear-end collision preventing apparatus and a method of a vehicle are provided to inform a driver of the risk of a rear-end collision if distance among own vehicle and the peripheral vehicles is below a predetermined value and to record situations before/after an accident. A rear-end collision preventing apparatus of a vehicle is composed of plural cameras(11,12,13) installed at the front, rear, and lateral sides of the vehicle and equipped with distance sensors; a display unit(30) installed at the front side of the driver's seat to display an image photographed by the cameras; a control unit(20) analyzing the image obtained by the cameras and distance data and transmitting the analyzed image and distance data to the display unit; and an information input unit(26) transmitting traveling information of the vehicle to the control unit. The control unit comprises a distance measuring controller(22) calculating distance between the vehicles by using a signal transmitted from the distance sensors of the camera and a main controller(21) detecting the change of distance between the vehicles by using distance data transmitted from the distance measuring controller, judging the risk of a rear-end collision on the basis of the change of distance between the vehicles, and controlling the display unit.

Description

Collision prevention device and method of automobile {PREVENTING APPARATUS AND THE SAME METHOD OF REAR-END COLLISION OF A CAR}

1 is a reference diagram showing a vehicle to which the collision prevention device of the present invention is applied.

Figure 2 is a block diagram showing a collision prevention device of a vehicle according to the present invention.

Figure 3 is a flow chart illustrating a collision prevention method of a vehicle according to the present invention.

<Description of the symbols for the main parts of the drawings>

11,12,13: camera 20: control unit

21: main controller 22: distance measuring controller

24: storage unit 26: information input unit

30: display unit 35: warning generating unit

The present invention calculates the inter-vehicle distance with the vehicle in the vicinity of the driving car, when the other vehicle approaches within a certain distance to notify the collision risk to enable defensive driving, and at the same time if the collision accident occurs before and after And a collision avoidance apparatus and method for recording a situation in which a vehicle can be recorded and submitted as evidence

Generally, when driving a car, a collision accident occurs due to a driver's carelessness or a poor watch. In particular, due to poor visibility during the long-distance driving, rainy weather or night driving, the driver's concentration decreases, traffic accidents such as a car leaving the lane, a collision with the front car or a collision by the back car are increasing. Moreover, in the case of an inexperienced driver such as a novice driver, collision accidents frequently occur because it is difficult to estimate the distance between the vehicle and the traveling speed with the vehicle traveling in front of the vehicle, as well as having a narrow field of view.

Accordingly, a video system that photographs the surrounding situation of a driving car and shows it on the display in front of the driver's seat has been proposed, and a system for calculating the distance between vehicles and informing the driver is also being developed. In addition, when a traffic accident occurs, a system for automatically recording a traffic accident is being developed.

However, most of the systems described above present only the image and the distance information of the vehicle in front and rear of the vehicle to the driver, which makes it difficult to prevent the risk of an accident caused by the vehicle approaching from the side.

In addition, since the above systems are configured as separate systems, it is difficult to integrate and manage a single system, and even if these systems are integrated, data processing is not easy.

The present invention has been made to solve the above-mentioned conventional problems, the front and rear of the car, as well as the side of the car at the same time to detect the distance between the vehicle approaching from each direction, if the distance between the distance is less than a certain distance It is an object of the present invention to provide a collision prevention apparatus and method for a vehicle that can prevent a collision accident by performing a defensive driving to avoid a collision accident.

Another object of the present invention is to provide an apparatus and method for preventing a collision of a vehicle in which a collision accident can be prevented in advance by warning the driver when a distance between the surrounding vehicles is less than a predetermined distance and allowing the driver to perform defensive driving. There is this.

In addition, an object of the present invention is to provide a vehicle safety driving device and a control method thereof by recording the situation before and after the occurrence of the crash, so that police officers or insurance company employees can accurately determine the cause or initial response process of the crash. There is this.

According to an aspect of the present invention, there is provided an anti-collision device for a vehicle, comprising: a plurality of cameras each having a distance sensor and a pair installed at the front, the rear, and the side of the vehicle; A display unit installed at the front of the driver's seat to display an image captured by the camera on a screen; A controller which analyzes the image and distance data acquired by the camera and transmits the analyzed data to the display unit; And an information input unit configured to transmit vehicle driving information according to a driving speed or a moving direction of a vehicle, and a user's operation to the controller, wherein the controller uses a signal transmitted from a distance sensor of the camera. And a main controller controlling the display unit by detecting a collision risk based on the distance measurement controller for calculating the distance between the vehicle and the distance data transmitted from the distance controller, and determining the risk of collision based on the distance measurement controller. It features.

In addition, according to the collision avoidance apparatus of the vehicle of the present invention, the control unit, characterized in that the collision further comprises a storage unit for recording the video and audio transmitted from the camera to the main controller.

Further, according to the collision avoidance apparatus of the vehicle of the present invention, the storage unit starts recording when the "collision situation" occurs, the "collision situation" is released, or stop recording when there is a user operation after the collision accident occurs. Characterized in that.

In addition, according to the collision avoidance apparatus of the vehicle of the present invention, when the control unit determines that the "collision risk" may further include a warning generating unit for generating a warning sound.

In addition, according to the collision avoidance method of the vehicle according to the present invention, the first step of calculating the distance between the vehicle when another vehicle approaches during the driving of the vehicle; A second step of determining that there is a "collision danger" when the inter-vehicle distance is less than or equal to a predetermined distance; A third step of determining that the collision distance is further reduced and starting recording; A fourth step of stopping recording and initializing data when the collision distance is increased and releasing the collision, and continuing recording when a collision accident occurs; And a fifth step of stopping recording according to a user's operation after a collision accident occurs.

In addition, according to the collision avoidance method of the vehicle of the present invention, the fifth step is characterized in that the recording is automatically stopped when a certain time elapses after the collision accident occurs.

In addition, according to the collision avoidance method of the vehicle of the present invention, in the second step, if the distance between the vehicle is 1.0 ~ 2.0m or less, it is determined as "collision risk", and in the third and fourth steps, the distance between the vehicle is 0.5m or less If it is determined that the "collision situation" and more than that "collision situation" is characterized in that it is determined to be released.

Hereinafter, with reference to the accompanying drawings, a collision prevention apparatus and method of a vehicle of the present invention will be described.

1 is a reference diagram showing a vehicle to which the collision prevention apparatus of the present invention is applied, Figure 2 is a block diagram showing a collision prevention apparatus of a vehicle according to the present invention, Figure 3 is a collision prevention method of a vehicle according to the present invention This is the flow chart shown.

An anti-collision device for a vehicle according to the present invention includes: a plurality of cameras 11, 12, and 13 installed in pairs at the front, rear, and side of the vehicle 10, each having a distance sensor; A display unit 30 installed in front of the driver's seat and displaying an image captured by the cameras 11, 12 and 13 on a screen; A controller 20 which analyzes the image and distance data acquired by the cameras 11, 12, 13 and transmits the analyzed data to the display unit 30; An information input unit 26 for transmitting vehicle driving information according to a traveling speed or a moving direction of the vehicle 10 and a user's operation to the controller 20; The controller 20 includes a warning generator 35 such as a speaker for generating a warning sound when the controller 20 determines that there is a "collision risk".

Here, the cameras 11, 12, and 13 are formed in pairs, respectively, and the front cameras 11L and 11R are respectively installed on the front left and right sides of the vehicle 10 and the left and right sides of the vehicle 10, respectively. It is divided into the side cameras 12L and 12R and the rear cameras 13L and 13R which are provided on the rear left and right sides of the vehicle 10, respectively. In this case, the front cameras 11L and 11R are respectively installed in the left and right headlights of the vehicle, and the side cameras 12L and 12R are respectively installed in the left and right side mirrors of the vehicle, and the rear cameras 13L and 13R are respectively mounted in the vehicle. It is preferable to provide in a vehicle width | variety.

In addition, the control unit 20 is transferred from the distance measuring controller 22 and the distance measuring controller 22 for calculating the distance between the vehicle using the signal transmitted from the distance sensor of the camera (11, 12, 13). The main controller 21 detects the change trend of the inter-vehicle distance using the collected distance data, determines the risk of collision based on this, and controls the display unit 30, and the cameras 11, 12, 13 when a collision accident occurs. And a storage unit 24 for recording the video and audio transmitted from the main controller 21 to the main controller 21.

The storage unit 20 is set to start recording when a "collision situation" occurs, and to stop recording when there is a user operation after the "collision situation" is released or a collision accident occurs. Of course, the storage unit 20 may be set to automatically stop recording after a certain time, approximately 8 to 12 minutes after the collision accident occurs.

In addition, the collision avoidance method of the vehicle of the present invention, the first step of calculating the distance between the vehicle when another vehicle approaches during the driving of the vehicle; A second step of determining that there is a "collision danger" when the inter-vehicle distance is less than or equal to a predetermined distance; A third step of determining that the collision distance is further reduced and starting recording; A fourth step of stopping recording and initializing data when the collision distance is increased and releasing the collision, and continuing recording when a collision accident occurs; And a fifth step of stopping recording according to a user's operation after a collision accident occurs.

In this case, in the fifth step, the recording may be automatically stopped when a predetermined time, approximately 8 to 12 minutes, elapses after the collision accident occurs. And, the criterion of the "collision risk" and "collision situation" is determined as "collision risk" when the distance between the vehicle is 1.0 ~ 2.0m or less, and judged as "collision situation" when the distance between the cars is 0.5m or less It is determined that the "collision situation" has been released.

The collision prevention apparatus and method of the vehicle of the present invention configured as described above can prevent collision accidents caused by vehicles approaching from the side as well as vehicles in front and rear during driving of the vehicle.

When the vehicle 10 starts driving, an image acquired by each camera is displayed on the display unit 30, and the distance between the vehicle ahead and the distance between the vehicle behind and the vehicle approaching from the side are respectively distances. It is calculated by the measurement controller 22 and shown on the display unit 30. Therefore, the driver can drive safely while checking the vehicle driving situation in the road.

If the distance between the vehicle in front and rear as well as the vehicle approaching from the side is 1.0 ~ 2.0m or less, the main controller 21 received the signal of the distance measuring controller 22 is determined to be "collision risk" The warning sound is generated through the warning generator 35 such as a speaker. Therefore, the driver can drive away from the approaching vehicle, thereby preventing the collision accident.

That is, when the distance to the front vehicle is near, the image by the front cameras 11L and 11R is displayed on the display unit 30 and a warning sound is generated so that the driver does not collide with the front vehicle by slowing down the speed of the vehicle 10. do. When the distance to the next car is near, an image by the side cameras 12L and 12R is displayed on the display unit 30 and a warning sound is generated so that the driver may take measures such as changing lanes so that an accident does not occur. Do not In addition, when the vehicle behind the vehicle approaches the vehicle, images of the rear cameras 13L and 13R are displayed on the display unit 30, so that the vehicle may be increased or the lane may be changed to avoid a "collision risk" by the vehicle behind. do.

Despite such defensive driving, when another vehicle keeps approaching and the distance between the vehicles is 0.5m or less, the main controller 21 determines that the vehicle is in a “collision situation” and uses the storage unit 24 to display the cameras 11, 12, 13. Recording of the image taken by the camera starts. Of course, even in this state, the driver continues to make efforts to avoid a collision accident, and thus the "collision situation" may be resolved by such an effort. As a result, when the inter-vehicle distance from the other vehicle increases by 0.5 m or more, the recording is stopped, and the storage unit 24 is initialized. This is because the capacity of the storage unit 24 is limited, so that more data can be stored when an actual accident occurs.

However, despite the driver's avoidance efforts, the distance between the vehicle and other vehicles may continue to decrease, resulting in a collision accident. The recording by the storage unit 24 continues even if the vehicle is stopped due to a collision accident, and recording stops when the driver or another person manipulates the user input part of the information input unit 26 after the basic accident settling. . Of course, even if there is no operation by the user, the recording by the storage unit 24 is automatically stopped when 8 to 12 minutes have elapsed after the vehicle is stopped.

Accordingly, when the video recorded in the storage unit 24 is checked, the cause of the collision accident and the initial process of the accident processing can be confirmed, so that the accident processing becomes clear. In this case, the data stored in the storage unit 24 may be stored in an external auxiliary storage device such as a CD or a floppy disk to be used in a later accident processing process.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to such specific embodiments, and those skilled in the art may appropriately change within the scope of the claims of the present invention. This will be possible.

As described above, according to the collision avoidance apparatus and method of a vehicle of the present invention, when the distance between the driving vehicle and the surrounding vehicle is less than a certain distance, the driver is notified of the collision risk, so that the driver may perform defensive driving. It is effective to prevent collision accidents through.

In addition, according to the collision prevention apparatus and method of the vehicle of the present invention, even if a collision occurs, the situation before and after the accident can be recorded and presented as evidence, so that there is an effect of smoothing the accident handling.

In addition, according to the collision prevention apparatus and method of the vehicle of the present invention, according to the distance between the vehicle and the vehicle to determine the "collision risk" or "collision situation" to inform the driver to crash collision through the driver's active avoidance efforts It is effective to prevent it.

In addition, according to the collision prevention apparatus and method of the vehicle of the present invention, when a "collision danger" occurs, by warning the driver to do a defensive driving to prevent a collision accident, to prevent human and physical damage caused by the collision accident It has the effect of making it possible.

Claims (8)

A plurality of cameras 11, 12, 13 installed in pairs in the front, rear and left and right directions of the vehicle 10 and provided with a distance sensor; A display unit 30 installed in front of the driver's seat and displaying an image captured by the cameras 11, 12 and 13 on a screen; Distance measuring controller 22 for calculating the distance between the vehicle using the signal transmitted from the distance sensor of the camera (11, 12, 13), and using the distance data transmitted from the distance measuring controller 22 A main controller 21 for detecting a change trend and determining a collision risk based on the change trend, and controlling the display unit 30, an image transmitted from the cameras 11, 12, 13 to the main controller 21, and A control unit (20) comprising a storage unit (24) for recording audio and analyzing and transmitting the image and distance data acquired by the cameras (11, 12, 13) to the display unit (30); In the collision avoidance apparatus of a vehicle comprising: an information input unit 26 for transmitting the vehicle driving information according to the driving speed or the moving direction and the user's operation of the vehicle 10 to the control unit 20, The control unit, If the front and rear inter-vehicle distance with the other vehicle or the distance between the left and right directions is 1.0 ~ 2.0m or less, it is determined that there is a "collision risk" includes an alarm generating unit 35 for generating a warning sound, When the distance between the front and rear and left and right sides with other vehicles is less than 0.5m, it starts to record by judging as "crash situation", and when there is a user's operation after the collision situation is canceled or a collision accident occurs due to the increase in the distance between cars. Stop recording at, A collision preventing device for a vehicle, characterized in that, if a predetermined time elapses after a collision accident, the recording is automatically stopped even if there is no user operation. delete delete delete delete delete delete delete

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