KR20180012065A - Black-box with lane departure warning capability - Google Patents

Abstract

The present invention relates to a black box with a lane departure warning function. A black box system for a vehicle transceives data related to a driving state of a vehicle from a plurality of GPS satellites, and comprises: a lane information acquisition unit to photograph a driving lane of the vehicle; a lane departure determination unit to compare data included in satellite signals received from the GPS satellites and driving lane data received from the lane information acquisition unit to determine a lane departure of the vehicle; a warning sound output module to generate a warning sound control signal to warn a lane departure if control data for a lane departure are generated from the lane departure determination unit; and a warning unit driven by the warning sound control signal received from the warning sound output module to warn a lane departure in a voice through a speaker of the vehicle. According to the present invention, since a warning sound is outputted to the speaker embedded in the vehicle if the vehicle departs from a lane, a warning sound of a larger output in comparison to a case where a warning sound is outputted to a speaker embedded in a conventional black box to reliably warn a driver to allow the driver drive safely and prevent an accident.

Description

BLACK-BOX WITH LANE DEPARTURE WARNING CAPABILITY WITH LAKE LEAVE WARNING FUNCTION

The present invention relates to a black box, and more particularly, to a black box capable of performing both a black-box function and a lane departure warning function.

Black box devices are used not only in aircraft but also in vehicles such as automobiles. Such a vehicle black box device records information on the running state of the vehicle and an accident situation, thereby enabling a more accurate determination of the state of the vehicle accident based on the record stored in the black box in the event of a vehicle accident.

Korean Patent Laid-Open Publication No. 2005-0091849 discloses a device that detects an image of a road ahead from a camera attached to a vehicle and grasps a currently running lane, and then makes an alarm sound when the driver attempts to leave the lane due to carelessness or sleepiness driving Lane Definition Warning System (LDWS).

Korean Patent Laid-Open Publication No. 2007-0075789 discloses a method for determining whether or not a direction indicator is operated and generating a lane departure warning, determining whether or not a direction indicator is operated by inputting sound corresponding to the recorded direction indicator operation sound, Discloses a lane departure warning system for a vehicle that generates a departure alarm.

However, the conventional lane departure warning system can alarm the lane departure, but it is impossible to record the accident image and it is also impossible to store the vehicle information.

On the other hand, in the conventional black box, it is impossible to alert the lane departure, so that the lane departure warning system must be purchased separately by the customer through the aftermarket. In addition, it is troublesome for a driver to install a black box device on a dashboard of a vehicle, and various electronic devices are mounted on the dashboard, which hinders visibility and damages the aesthetics.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantages of the conventional black box limitation and lane departure warning system, and it is an object of the present invention to provide a black box function and a lane departure warning function Black box.

Another problem to be solved by the present invention is to provide a lane departure warning sound by outputting a lane departure warning sound through a speaker built in a vehicle whose output is much larger than that of a speaker built in a black box, And to provide a black box that can prevent an accident and safely protect the driver.

Another object of the present invention is to provide a warning function for a lane departure in a black box, thereby reducing the cost of providing a separate lane departure warning system, And also to provide a black box that can solve the problem.

One aspect of the present invention for solving the above problems

1. A vehicle black box system for transmitting and receiving data related to a running state of a vehicle from a plurality of GPS satellites,

A lane information obtaining unit for photographing a driving lane of a vehicle;

A lane departure determination unit for comparing the data included in the satellite signal received from the GPS satellite with vehicle driving information and driving lane data received from the lane information obtaining unit to determine whether the vehicle has departed from the lane;

A warning sound output module for generating a warning sound control signal for warning the lane departure when control data for lane departure from the lane departure determination unit is generated; And

And a warning unit which is driven according to a warning sound control signal received from the alarm sound output module and alerts a lane departure to a voice through a speaker of the vehicle.

The black box system is interfaced with an On-Board Diagnostic (OBD) of the vehicle, and the interface with the OBD is connected to a CAN (Controller Area Network) or K-Line Transmission is performed.

The black box includes: a video signal processing unit for processing a video signal corresponding to an image of a vehicle exterior taken by a plurality of cameras; A sensing unit for sensing vehicle information data on the position, motion, and impact of the vehicle; A black box control unit for controlling driving of the camera and the video signal processing unit based on the vehicle information data sensed by the sensing unit; And a wireless communication module for transmitting the black box information including the video signal to the remote server through the wireless Internet.

The lane departure determination unit sets a reference point using the lane information for the position of the lane obtained from the lane information obtaining unit, compares the lane information with the reference point at a predetermined time interval to calculate a standard deviation, It is determined whether the deviation exceeds a preset range from a reference standard deviation set as a standard deviation in the normal running state of the vehicle based on the reference point, and when it exceeds the reference standard deviation, it is determined that the vehicle has deviated from the lane.

The warning unit can be configured to warn a lane departure by vibration of audio, air conditioner, perfume generator, interior light, or steering wheel or seat belt in the vehicle other than the speaker of the vehicle.

The black box having the lane departure warning function according to the present invention outputs a warning sound directly to a speaker built in a vehicle whose output is much larger than that of a speaker built in a black box when the vehicle leaves the lane, By warning, it is possible to provide an advantage that the driver can carry out the safe driving and prevent the accident in advance.

In addition, since the present invention does not provide a lane departure warning system separate from the black box, redundant installation of a GPS receiver, a memory, and the like is unnecessary, thereby providing a cost saving effect.

1 is a schematic perspective view showing a vehicle equipped with a black box having a lane departure warning function according to an embodiment of the present invention.
2 is a system block diagram of a black box system having a lane departure warning function according to an embodiment of the present invention.
3 is a block diagram of a black box having a lane departure warning function according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals as used in the appended drawings denote the same elements in the drawings, unless they are indicated on other drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention

A detailed description thereof will be omitted.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms " part, "" ...," and "block ", etc. in the specification mean a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software have.

FIG. 1 is a schematic perspective view illustrating a vehicle equipped with a black box having a lane departure warning function according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a black box system having a lane departure warning function according to an exemplary embodiment of the present invention. 3 is a block diagram of a black box having a lane departure warning function according to an embodiment of the present invention.

1 to 3, an image storage device 200, for example, a black box 100 on which a camera is mounted, is mounted on the vehicle 10 in a detachable form. The black box 100 may be connected to a connector of the travel information verifying apparatus 120 to receive vehicle status information or may receive vehicle status information from the OBD terminal 120 in a short-range wireless communication method. Here, examples of the short-range wireless communication method include Bluetooth, Wi-Fi, and the like.

The vehicle 10 is also provided with an On Board Diagnostic (OBD) terminal 110 (hereinafter, referred to as " OBD ") terminal 110 which receives status information on at least one on- board device mounted on a vehicle from an engine control unit ) Is mounted. The black box 100 of the present invention is interfaced with an OBD of a vehicle, and transmits a command to reproduce a warning sound through the CAN communication. When the lane departure judging section 108 judges the lane departure, the OBD control section 113 of the travel information confirming apparatus 110 transmits a command to reproduce a warning sound with the speaker of the vehicle. In accordance with the control of the OBD control unit 113, the warning signal output unit 114 generates a warning sound for warning of lane departure and outputs the warning sound to a speaker (not shown) built in the vehicle.

The travel information checking device 110 transmits data through CAN or K-Line. Data transmission is done via CAN or K-line using the ISO 9141-2 or KWP2000 vehicle fault diagnosis standard protocol. The ISO9141-2 and KWP2000 are standard protocols for vehicle fault diagnosis specified by ISO (International Organization for Standardization) and SAE (Society of Automotive Engineers). CAN (Controller Area Network) is a network communication method that can be used in a small range. The diagnostic communication method speeds from 500 Kbps to 1 Mbps, 50 times faster than the existing communication speed, and the K-Line has a speed of 10.4 Kbps as the diagnostic communication line of the vehicle named by the OBD regulation.

3, a black box 100 according to an embodiment of the present invention includes a video signal processing unit 101, a sensing unit 102, a black box control unit 103, a data storage unit 104, a GPS receiving unit 105, And a wireless communication module 106.

The image signal processing unit 101 processes image signals corresponding to an image outside the vehicle photographed by the plurality of cameras 120. The black box 100 for a vehicle according to the embodiment of the present invention transmits the images of four channels photographed through the cameras 120 provided at the front, the lower, the right, and the left of the vehicle 10 to the video signal processor 101 do. However, the number and types of the cameras 120 are not limited to the embodiments of the present invention. The camera 120 may be, for example, a lens, an image sensor, or an image signal processor (ISP). The camera 120 may include, for example, two or more lenses, two or more image sensors, and the like, and output the captured image to the image signal processing unit 101 to generate a multi-channel image signal.

The sensing unit 102 senses vehicle information data regarding the position, motion, and impact of the vehicle. The sensing unit 102 may include at least one of a position information sensor that senses the position information of the vehicle, an inertia sensor that senses the movement of the vehicle, and a shock sensor that detects an impact applied to the vehicle from outside. have.

The GPS receiver 105 receives satellite data and outputs one or more of the latitude, longitude, altitude, and time of the current receiving point. In addition, the inertial sensor may include a sensor such as an acceleration sensor, an angular velocity sensor, or the like, and may be used for accurate calculation of information on movement of the vehicle and movement distance of the vehicle in a shadow area of the GPS. Using this information, the black box control unit 103 can also utilize it as data for determining whether the vehicle is an accident situation or for determining a situation before and after an accident in an accident analysis. For example, when the output value of the inertial sensor exceeds a preset threshold value for monitoring the occurrence of an accident or monitors the transition of the output value for a predetermined time, the black box control unit 103 displays an accident situation And transmit it to a remote server (not shown).

In addition, the impact sensor may detect an impact applied from the outside during driving or parking of the vehicle, and may transmit the shock to the black box controller 103. That is, the impact sensor senses the gravitational acceleration received by the vertical, horizontal, and left and right sensors, and detects the direction and direction of rotation of the vehicle when driving or parking. Using this information, when the output value of the shock detection sensor that senses an impact applied from the outside even after the driver does not park in the vehicle exceeds a predetermined threshold value, the black box control unit 103 causes the accident occurrence

.

The image signal processing unit 101 generates an image signal corresponding to an image of the outside of the vehicle photographed by the camera 120. The image signal processing unit 101 compresses and / or images an image outside the vehicle photographed by the camera 120

It is treated as a luxurious process. At this time, the video signal processor 101 has a predetermined signal format.

The video signal processing unit 101 may store the generated video signal in the data storage unit 104 or in a temporary storage unit (not shown) in real time, and then store the generated video signal in the data storage unit 104. Here, the video signal processing unit 101 may perform at least one of encoding, decoding, encryption, decryption, and the like of a video signal, for example.

The video signal processing unit 101 may insert vehicle information data provided from the sensing unit 102 in a user data area in a data file formed by integrating a video signal and an audio signal.

In addition, the data storage unit 104 may store the encrypted data file, the sensing information sensed by the sensing unit 102, or may store arbitrary information generated using the sensed information. In addition, the data storage unit 104 may further store decryption key information received from an external server to decrypt the encrypted data file. The data storage unit 104 may be implemented, for example, by a memory device embedded in the vehicle black box 100 and / or a removable nonvolatile memory card. Software for operation of the sensing unit 102, the video signal processing unit 101, and the black box control unit 103 may be stored in the data storage unit.

The black box control unit 103 controls driving of the camera 120, the video signal processing unit 101 and the lane information obtaining unit 107 based on the vehicle information data sensed by the sensing unit 102 do. That is, the black box control unit 103 controls the functions of the respective components so that the respective components of the black box 100 can perform the functions described above. The black box control unit 103 may be implemented in a physical and / or conceptual integrated manner with surrounding components such as the video signal processing unit 101 and the lane information obtaining unit 107.

The lane departure determination unit 108 can determine whether a lane departure has occurred by referring to the information input from the lane information obtaining unit 107 and store the information in the data storage unit 104, Deletion of data stored in the data storage unit 104 for ensuring insertion of the information and storage of the information, or control for performing at least one of the functions.

The warning sound output control module 109 receives signals from the lane departure determination unit 108, stores and analyzes the signals, generates a signal for controlling the warning signal output unit 114 of the driving information confirmation device 110, And transmits it to the confirmation device 110.

In addition, the lane departure warning function of the black box of the present invention has a forward collision warning (FCW) function and a backward collision warning (BCW) function. In order to perform the lane departure warning function, the front camera information, the turn signal, the wiper operation signal, the vehicle brake signal through the vehicle CAN network, and the speed signal are received and a warning is given through the speaker when the lane departs. Here, the method of detecting the lane departure is the same as the method of detecting the lane departure in the conventional lane departure warning system provided in the conventional vehicle, and a detailed description thereof will be omitted. In addition, the lane departure warning history information can be stored when warning of a lane departure, so that it can be used for identification of an accident cause or utilized as safe driving information.

The FCW function generates a warning sound control signal through the warning sound output module 104 when the forward camera approaches the vehicle by detecting the forward camera through the object detection logic and transmits the alarm sound control signal to the driving information confirmation device 110 via the CAN communication And sends a warning sound through the warning signal output unit 114 through the speaker (not shown) built in the vehicle according to the control of the OBD control unit 1130, thereby preventing the driver from accident.

The wireless communication module 106 may transmit the black box information including the video signal to a remote server (not shown) or a user terminal (not shown) through the wireless Internet. 5, the OBD 110 includes a vehicle operation information confirmation unit 111, a vehicle state information confirmation unit 112, an OBD control unit 113, and a warning signal output unit 114. [ .

The vehicle operation information confirmation unit 111 of the operation information confirmation apparatus 110 collects information on fuel consumption, speed, engine oil, RPM, and the like, and the vehicle condition information verification unit 112 identifies the trouble diagnosis, Collect information about.

The OBD control unit 113 controls driving of the vehicle driving information confirmation unit 111, the vehicle condition information confirmation unit 112 and the warning signal output unit 114 and the CAN communication with the black box 100.

When the lane departure is detected from the black box control unit 103 under the control of the OBD control unit 113 and the alarm signal output unit 114 receives the alarm sound control signal, (Not shown) built in the vehicle.

In the present invention, the warning portion can be configured to warn a lane departure due to vibration in the vehicle, audio in the vehicle, air conditioner, fragrance generator, interior lighting, or steering wheel or seat belt. In the case of a combination of two or more such warnings, it is possible to warn a lane departure more clearly when the driver is sleeping or watching a smartphone while driving.

It will be appreciated that embodiments of the present invention may be implemented in hardware, software, or a combination of hardware and software. Such arbitrary software may be stored in a memory such as, for example, a volatile or non-volatile storage device such as a storage device such as ROM or the like, or a memory such as a RAM, a memory chip, a device or an integrated circuit, , Or stored in a machine-readable storage medium, such as optical, or magnetically recordable, such as, for example, a CD, DVD, magnetic disk or magnetic tape. It will be appreciated that the memory is an example of a machine-readable storage medium suitable for storing programs or programs containing instructions for implementing the embodiments of the present invention. Accordingly, the present invention includes a program comprising code for implementing the method of any of the claims herein, and a machine-readable storage medium storing such a program. Also, such a program may be electronically transferred through any medium such as a communication signal transmitted over a wired or wireless connection, and the present invention appropriately includes the same.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof,

It is to be understood that the described embodiments are to be considered in all respects only as illustrative and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed in a similar fashion may also be implemented in a combined form.

100: Black box 110: Operation information check device
111: vehicle driving information confirmation unit 112: vehicle condition information confirmation unit
113: OBD control unit 104: Warning signal output speaker
101: video signal processing unit 102:
103: black box control unit 104:
105: GPS receiver 106: wireless communication module
107: lane information obtaining unit 108: lane departure determining unit
109: Beep sound output control module

Claims (6)

1. A vehicle black box system for transmitting and receiving data related to a running state of a vehicle from a plurality of GPS satellites,
A lane information obtaining unit for photographing a driving lane of a vehicle;
A lane departure determination unit for comparing the data included in the satellite signal received from the GPS satellite with vehicle driving information and driving lane data received from the lane information obtaining unit to determine whether the vehicle has departed from the lane;
A warning sound output module for generating a warning sound control signal for warning the lane departure when control data for lane departure from the lane departure determination unit is generated; And
And a warning unit driven by a warning sound control signal received from the warning sound output module to alert the lane departure to a voice through the speaker of the vehicle.
The black box as claimed in claim 1, wherein the black box system is connected to an on-board diagnostic system of a vehicle.
The black box according to claim 2, wherein the interface with the OBD is data transmission through a CAN (Controller Area Network) or a K-Line.
The apparatus of claim 1, wherein the black box comprises: a video signal processing unit for processing a video signal corresponding to an image of a vehicle exterior taken by a plurality of cameras; A sensing unit for sensing vehicle information data on the position, motion, and impact of the vehicle; A black box control unit for controlling driving of the camera and the video signal processing unit based on the vehicle information data sensed by the sensing unit; And a wireless communication module for transmitting the black box information including the video signal to the remote server through the wireless Internet.
The lane departure determination apparatus according to claim 1, wherein the lane departure determination unit sets a reference point using the lane information of the lane information obtained from the lane information obtaining unit, compares the lane information with the reference point at a predetermined time interval, And judges whether the standard deviation exceeds a predetermined range from a reference standard deviation set as a standard deviation in the normal running state of the vehicle based on the reference point. If the standard deviation exceeds the reference standard deviation, the vehicle judges that the vehicle has deviated from the lane Characterized by The black box according to claim 1, wherein the warning unit is configured to warn the lane departure warning by vibration of audio, air conditioner, perfume generator, interior light, or steering wheel in the vehicle other than the speaker of the vehicle.

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