KR102111755B1 - Image-processing Apparatus for Car and Method of Controlling The Same - Google Patents

Abstract

The present invention relates to an image processing apparatus for a vehicle and a control method thereof. The present invention, by connecting a vehicle black box to the On-Board Diagnostics (OBD) terminal coupled to the vehicle's control unit (ECU), checks the ON / OFF state of the vehicle through OBD communication and checks the black box according to the state. Provided is an image processing apparatus for a vehicle capable of performing each function by distinguishing a driving mode from a parking mode, and a control method thereof.

Description

Vehicle image processing device and its control method {Image-processing Apparatus for Car and Method of Controlling The Same}

The present invention relates to an image processing device for a vehicle, and a vehicle black box is connected to an OBD (On-Board Diagnostics) terminal coupled to an automobile control unit (ECU) to check the vehicle's starting ON / OFF state through OBD communication. The present invention relates to an image processing apparatus for a vehicle and a control method for a vehicle capable of distinguishing the driving mode and the parking mode of the black box according to the state.

A conventional black box for a vehicle is a method of determining a driving mode and a parking mode by connecting to the ACC signal line of a vehicle and detecting a change in the signal line to a LOW (OFF) or HIGH (ON) state.

In this way, the state of the ACC signal line becomes LOW (OFF) when the vehicle is in a neutral state when it stops while driving, depending on the type of vehicle. There is a problem.

The operation of the parking mode and the driving mode performs different operations depending on whether the start is ON / OFF and the stop state.

(1) Operation classification according to start ON / OFF state

-In the driving mode (start-up ON state): Performs the operation that exerts maximum performance rather than reducing battery consumption.

-In parking mode (start-off state): Performs an operation that reduces battery consumption rather than maximum performance.

(2) Operation classification according to whether or not to stop

-In the driving mode (driving state): It senses the impact and dulls the standard for recording, and activates the functions (lane departure guidance / collision guidance) that are effective only while driving.

-In parking mode (stopped state): Sensing the shock and making the recording criteria sensitive, activates a function (motion detection recording) that is effective only when it is stopped.

An object of the present invention is to connect a vehicle black box to an On-Board Diagnostics (OBD) terminal coupled to a control unit (ECU) of a vehicle, and check the starting ON / OFF status of the vehicle through OBD communication. It is to provide an image processing apparatus for a vehicle and a control method for a vehicle capable of performing each function by distinguishing a driving mode from a box and a parking mode.

An image processing apparatus for a vehicle according to an aspect of the present invention includes: an image processing apparatus for a vehicle mountable in a vehicle, the communication unit communicating with an OBD module receiving vehicle information from the vehicle; And a control unit that determines one of the parking mode and the driving mode using the vehicle information received from the OBD module.

A control method of an image processing apparatus for a vehicle according to another aspect of the present invention is a method for controlling an image processing apparatus for a vehicle that can be mounted on a vehicle, from the vehicle through a communication unit communicating with an OBD module receiving vehicle information from the vehicle Receiving the vehicle information; And determining an operation mode of one of a parking mode and a driving mode using the received vehicle information.

According to the control method of the image processing apparatus for a vehicle according to the present invention has the following effects.

According to the present invention, it is possible to supplement the problems of the start ON / OFF state recognition method by detecting the ACC signal change in the conventional method and perform respective operations suited to the characteristics of the parking state and the driving state.

1 is a view for explaining the configuration of a vehicle image processing apparatus according to an embodiment of the present invention.
2 is a block diagram of an image processing system for a vehicle according to an embodiment of the present invention.
3 is a flowchart of a control method of an image processing apparatus for a vehicle according to a first embodiment of the present invention.
4 is a flowchart of a control method of an image processing apparatus for a vehicle according to a second embodiment of the present invention.
5 is a flowchart of a control method of an image processing apparatus for a vehicle according to a third embodiment of the present invention.
6 is a flowchart of a control method of an image processing apparatus for a vehicle according to a fourth embodiment of the present invention.
7 is a flowchart of a control method of an image processing apparatus for a vehicle according to a fifth embodiment of the present invention.

The above-mentioned objects, features and advantages of the present invention will become more apparent through the following detailed description in conjunction with the accompanying drawings. Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Throughout the specification, the same reference numbers refer to the same components. In addition, when it is determined that a detailed description of a known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Hereinafter, a mobile terminal related to the present invention will be described in more detail with reference to the drawings. The suffixes "module" and "part" for components used in the following description are given or mixed only considering the ease of writing the specification, and do not have meanings or roles that are distinguished from each other.

1 is a view for explaining the configuration of a vehicle image processing apparatus according to an embodiment of the present invention.

The vehicle image processing apparatus 100 is also referred to as a vehicle black box apparatus.

Referring to FIG. 1, the vehicle image processing apparatus includes a camera module 101, a microphone 102, a signal processing unit 103, a storage unit 104, a communication unit 105, a power supply unit 106, a control unit 107, It may include an impact detection unit 108, a location information module 109, a display 110, an audio output module 111, an external display device 112, an interface 113, and an input unit 120.

The camera module 101 may capture an image of the front or rear, side, or interior of the vehicle and transmit it to the signal processing unit 103. The photographed image may be stored in the storage unit 104 after being subjected to a compression process in the signal processing unit 103 or directly stored in the storage unit 104 without a compression process. The camera module 101 is composed of one camera according to the system configuration, and only the front is photographed, or when the camera is composed of a plurality of cameras, the camera's recording position can be variously used in various ways depending on the purpose of use, such as front, rear, side, and inside the vehicle. You can set

The microphone 102 may record the voice or sound inside or outside the vehicle and transmit it to the signal processing unit 103. The recorded voice or sound may be transmitted to the signal processing unit 103 and passed through a compression process, and then stored in the storage unit 104 or directly stored in the storage unit 104 without a compression process. The recorded voice or sound is related to a sound caused by an external shock or a situation inside / outside a vehicle, and may help to recognize the situation at the time along with the video.

The signal processing unit 103 compresses to reduce the capacity of image data captured from the camera module 101. Image data has the form that each frame is gathered several times on the axis. That is, it can be regarded as a photograph taken continuously for a given time. Since the capacity of such an image is very large when it is not compressed, and it is very inefficient when it is stored in the memory as it is, compression must be performed on the digitally converted image. In video compression, a method using correlation, inter-frame correlation, and visual characteristics sensitive to low-frequency components is used. Since the original data is lost due to compression, it must be compressed at an appropriate rate to identify the traffic accident situation of the vehicle. As a video compression method, one of various video codecs such as H.264, MPEG4, H.263, and H.265 / HEVC can be used, and video data is compressed in a manner supported by the vehicle image processing apparatus 100.

Also, the signal processing unit 103 may compress data recorded from the microphone 102. The signal processing unit 103 may not only compress the recorded video and audio data, but also encrypt them to restrict access to the data.

The storage unit 104 may store the video and audio data as a single file or two files in units of storage cycles by storing the recorded video and audio data. For example, if the storage period is 30 seconds, the video and audio recorded for the first 30 seconds are compressed and stored in the form of a video file, and the recorded video and audio for 30 seconds are repeatedly compressed and stored.

The storage unit 104 may divide and store different data according to a recording mode. For example, the data recorded during driving and the data recorded during parking may be stored in a separate folder, and the always-recorded data and data recorded by an event may be stored in a separate folder.

The storage unit 104 may be configured inside the vehicle image processing apparatus 100 or configured detachably through a port provided in the vehicle image processing apparatus 100 or may exist outside the vehicle image processing apparatus 100. When the storage unit 104 is configured inside the vehicle image processing apparatus 100, it may exist in the form of a hard disk drive or a flash memory. When the storage unit 104 is detachably configured in the vehicle image processing apparatus 100, it may exist in the form of an SD card, a Micro SD card, a USB memory, and the like. When the storage unit 105 is configured outside the image processing apparatus 100 for a vehicle, it may exist in a storage space in another device or a server through the communication unit 105.

The communication unit 105 configures a connection for the vehicle image processing apparatus 100 to exchange recorded images or voices with a server or other vehicle or other device. In addition, the communication unit 105 allows vehicle information or surrounding information to be transmitted and received between a server, another vehicle, or other devices. The communication unit 105 may support wireless networks such as WIFI, Bluetooth, 3G, LTE, WIMAX, and WIGI or wired networks such as EtherNet and MODEM.

The power supply unit 106 receives external power or supplies its own battery power to supply power for driving the vehicle image processing apparatus 100. When the vehicle is in the starting state, power of the vehicle is supplied to the vehicle image processing apparatus 100 to charge the rechargeable battery, and when the vehicle is turned off, the power of the rechargeable battery is supplied to the vehicle image processing apparatus 100.

The control unit 107 controls the overall operation of the image processing apparatus 100 for a vehicle. The control unit 107 may include a multimedia module for multimedia playback. The multimedia module may be implemented inside the control unit 107, or may be implemented separately from the control unit 107.

The control unit 107 may set an operation mode of the image processing apparatus 100 for a vehicle based on whether the vehicle is running or a signal from the impact detection unit 108. When the vehicle is driving, the control unit 107 may perform an always-recording function or perform event recording by an impact event detected by the impact detection unit 108. When the vehicle is parked, the control unit 107 determines the impact event detected by the impact detection unit 108 or the movement of an object recorded in the camera module 101 to perform a parking recording function for the vehicle image processing apparatus 100 Can be controlled.

The shock detection unit 108 detects an impact applied to the vehicle or generates an event when the amount of change in acceleration is more than a certain amount and transmits the event to the control unit 107. The shock detection unit 108 may include an acceleration sensor, a geomagnetic sensor, and the like to detect shock or acceleration.

The location information module 109 is a module for confirming or obtaining the location of the vehicle image processing apparatus 100. A representative example of the location information module is a Global Position System (GPS) module.

The location information module 109 continuously calculates the current location of the vehicle in real time and uses it to calculate the vehicle's speed information.

The display 110 displays and outputs information processed by the vehicle image processing apparatus 100.

For example, the display 110 can display the video and audio recorded by the camera module 101 in real time or later, and display them on the screen to facilitate recording setting in the control unit 107 and touch them. Input is possible, so the user can easily select and set the desired function.

The display 110 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a three-dimensional display ( 3D display).

When the display unit 110 and a sensor for sensing a touch operation (hereinafter referred to as a “touch sensor”) form a mutual layer structure (hereinafter, abbreviated as “touch screen”), the display unit 110 is an output device. In addition, it can be used as an input device. The touch sensor may have a form of, for example, a touch film, a touch sheet, or a touch pad.

The sound output module 111 may output audio data received from the communication unit 105 or stored in the storage unit 104. The sound output module 111 outputs sound signals related to functions performed by the vehicle image processing apparatus 100.

The sound output module 111 may include a receiver, a speaker, and a buzzer. Also, the sound output module 111 may output sound through an earphone jack. The user can hear the sound output by connecting the earphone to the earphone jack.

The external display device 112 is a light emitting device such as an LED or a light, and can provide light to inform the operation state of the vehicle image processing apparatus 100 or to facilitate operation of the vehicle image processing apparatus 100 such as a button or a touch. have.

The interface 113 serves as a passage with all external devices connected to the vehicle image processing apparatus 100. The interface 113 receives data from an external device or receives power and transmits it to each component inside the vehicle image processing device 100 or allows data inside the vehicle image processing device 100 to be transmitted to an external device. For example, wired / wireless headset port, external charger port, wired / wireless data port, memory card port, port for connecting devices equipped with an identification module, audio input / output (I / O) port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The input unit 120 generates input data for a user to control the operation of the vehicle image processing apparatus 100. The input unit 120 may be configured with a key pad dome switch, a touch pad (static pressure / blackout), a jog wheel, a jog switch, or the like.

2 is a block diagram of an image processing system for a vehicle according to an embodiment of the present invention.

Referring to FIG. 2, an image processing system for a vehicle according to an embodiment of the present invention may include a vehicle image processing apparatus 100 mounted on a vehicle, an OBD module 200 and a vehicle 300.

The vehicle image processing apparatus 100 may further include a sensor unit 120 in addition to the components illustrated in FIG. 1, as illustrated in FIG. 2.

The sensor unit 120 may detect vibration or movement generated from the outside.

The camera module 101 of the vehicle image processing apparatus 100 converts light input through an imaging device such as a CCD or CMOS into an image and transmits it to the control unit 107, and the control unit 107 transmits the light to the camera module 101. The captured image may be stored in the storage unit 104.

The OBD (On-Board Diagnostics) module 200 is coupled to the vehicle image processing apparatus 100, and the OBD terminal of the OBD module 200 and the OBD terminal coupled to the control unit (ECU) of the vehicle 300 are connected to each other. I can connect. The connection between the main body of the vehicle image processing apparatus 100 and the OBD module 200 may be made in various forms such as USB, Bluetooth, and WiFi.

In the connection through the OBD interface between the vehicle image processing apparatus 100 and the ECU, the vehicle image processing apparatus 100 may periodically poll using the OBD communication protocol and check the change of the vehicle's starting ON / OFF state.

When a change from the start OFF state to the ON state is detected by performing the operation, the vehicle image processing apparatus 100 enters the driving mode and detects the change from the start ON state to the OFF state, and the vehicle image processing apparatus 100 parks By entering the mode, an operation corresponding to each mode may be performed.

3 is a flowchart of a control method of an image processing apparatus for a vehicle according to a first embodiment of the present invention. The control method according to the first embodiment of the present invention may be implemented in the vehicle image processing apparatus 100 and the vehicle image processing system described with reference to FIGS. 1 and 2. Hereinafter, the control method according to the first embodiment of the present invention and operations of the vehicle image processing apparatus 100 and the vehicle image processing system for implementing the same will be described in detail with reference to the necessary drawings.

Referring to FIG. 3, the control unit 107 may receive a signal from the OBD module 200 and detect the state of the vehicle 300 [S100].

The control unit 107 may determine whether the starting state of the vehicle changes according to the detection of the vehicle state [S110].

As a result of the determination in step S110, the controller 107 may determine whether the vehicle start-up changes from an ON state to an OFF state when the vehicle start-up state changes [S120].

As a result of the determination in step S120, the control unit 107 performs the operation mode of the image processing apparatus 100 for a vehicle as a parking mode when the starting state of the vehicle changes from an ON state to an OFF state [S130], When the starting state is changed from the OFF state to the ON state, the operation mode of the vehicle image processing apparatus 100 is performed as the driving mode [S140].

The driving mode operation is a mode in which functions related to the driving environment are activated and a detection standard is also operated at a relatively insensitive level when the maximum possible performance is performed in a situation where power is guaranteed.

Table 1 is a table illustrating driving mode operation.

Classification Details Operation standard Performance aspect Recording framerate max (30fps)
Recording bitrate max (8Mbps)
Continuous recording Apply maximum performance without considering current consumption Functional Activation Lane departure guidance function
Front car collision guidance function Useful functions while driving Detection criteria Shock recording detection level desensitization setting Frequent shock detection during operation, so set it insensitive

4 is a flowchart of a control method of an image processing apparatus for a vehicle according to a second embodiment of the present invention. 4 illustrates an example in which the vehicle image processing apparatus 100 performs the driving mode operation.

Referring to FIG. 4, in a state in which the operation mode of the vehicle image processing apparatus 100 is the driving mode, the control unit 107 adjusts the reference value of the impact sensitivity of the vehicle downward [S200].

The control unit 107 determines whether an impact greater than or equal to the downwardly adjusted impact amount occurs [S210], activates a recording function when an impact greater than the adjusted strength occurs [S220], and activates a recording function when an impact less than the adjusted strength occurs. Deactivate [S230].

On the other hand, the parking mode is a mode that operates using the battery power of the vehicle at all times, and performs an operation of minimizing current consumption in consideration of discharge of the vehicle battery.

In addition, the parking mode is a mode that activates a function of recording surrounding changes through motion detection in a parking environment, such as a driver's absence, and operates the shock detection criteria in consideration of the stop state at a sensitive level.

Table 2 is a table illustrating the parking mode operation.

Classification Details Operation standard Current consumption
Minimization aspect Minimum recording framerate (15fps)
Minimum recording bitrate (4Mbps)
Record only when an event occurs Minimum performance applied based on minimum consumption current Functional Activation Motion detection recording function Useful features while parking Detection criteria Shock recording detection level sensitivity setting Sensitive setting as there is little impact detection during parking

5 is a flowchart of a control method of an image processing apparatus for a vehicle according to a third embodiment of the present invention. 5 illustrates an example in which the vehicle image processing apparatus 100 performs the parking mode operation.

Referring to FIG. 5, in a state in which the operation mode of the vehicle image processing apparatus 100 is the parking mode, the control unit 107 activates a motion detection function of the sensor unit 120 [S300], and moves above a set reference value. It can be determined whether it is detected [S310].

The control unit 107 activates a recording function for a predetermined time when a motion above the set reference value is detected as a result of the determination in step S310 [S320], and when a motion below the set reference value is detected or no motion is detected, a recording function Can be deactivated [S330].

6 is a flowchart of a control method of an image processing apparatus for a vehicle according to a fourth embodiment of the present invention. 6 illustrates another example in which the vehicle image processing apparatus 100 performs the parking mode operation.

Referring to FIG. 6, in a state in which the operation mode of the vehicle image processing apparatus 100 is the parking mode, the controller 107 measures the current of the battery [S400], and determines whether the measured battery current is greater than or equal to a set reference value. It can be determined whether or not [S410].

In step S400, the current measurement target battery may be a battery of the vehicle 300 or a built-in battery of the vehicle image processing apparatus 100.

As a result of the determination in step S410, the controller 107 may activate a recording function when the measured battery current is greater than or equal to the set reference value [S420], and minimize the recording function when the measured battery current is less than or equal to the set reference value. Yes [S430].

In step S430, the control unit 107 may deactivate the recording function.

7 is a flowchart of a control method of an image processing apparatus for a vehicle according to a fifth embodiment of the present invention. 7 shows another example in which the vehicle image processing apparatus 100 performs the parking mode operation.

Referring to FIG. 7, in a state in which the operation mode of the vehicle image processing apparatus 100 is the parking mode, the control unit 107 upwardly adjusts the reference value of the impact sensitivity of the vehicle [S500], and is equal to or greater than the upwardly adjusted impact amount. It is possible to determine whether an impact is applied to the vehicle 300 [S510].

As a result of the determination in step S510, the control unit 107 may activate a recording function when an impact of the upwardly adjusted reference value or more occurs [S520], and deactivate a recording function when an impact of the upwardly adjusted reference value or more does not occur. Yes [S530].

The control method according to the present invention described above may be provided by recording on a computer-readable recording medium as a program for executing on a computer.

The control method according to the present invention can be implemented through software. When executed in software, the configuration means of the present invention are code segments that perform necessary tasks. The program or code segments can be stored on a processor readable medium or transmitted by a computer data signal combined with a carrier wave in a transmission medium or communication network.

The computer-readable recording medium includes all types of recording devices in which data readable by a computer system is stored. Examples of computer-readable recording devices include ROM, RAM, CD-ROM, DVD ± ROM, DVD-RAM, magnetic tape, floppy disk, hard disk, and optical data storage device. The computer-readable recording medium can also be distributed over network-connected computer devices so that the computer-readable code is stored and executed in a distributed fashion.

The present invention described above, as the person skilled in the art to which the present invention pertains, various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention, and the above-described embodiments and the attached It is not limited by the drawings. In addition, the embodiments described in this document are not limitedly applicable, and all or a portion of each embodiment may be selectively combined to be configured so that various modifications can be made.

100: vehicle image processing device 101: camera module
104: storage unit 105: communication unit
109: location information module 200: OBD
300: vehicle

Claims (13)

In the image processing apparatus for a vehicle,
A communication unit communicating with a vehicle control unit (ECU) that receives vehicle information from the vehicle; And
It includes a control unit for determining an operation mode of any one of the parking mode and the driving mode using the vehicle information received from the OBD module,
The vehicle image processing apparatus includes a driving environment-related function including at least one of a lane departure guidance function and a front vehicle collision guidance function and a parking environment-related function including a motion monitoring and recording function,
The control unit,
When the operation mode is determined as the driving mode, the function related to the driving environment is activated, the function related to the parking environment is deactivated,
When the operation mode is determined to be the parking mode, the driving environment-related function is deactivated, the motion monitoring recording function of the parking environment-related function is activated, and it is determined whether a motion exceeding a set reference value is detected,
The control unit activates a recording function for a predetermined time when a motion above the set reference value is detected, and deactivates a recording function when a motion below the set reference value is detected or no motion is detected,
The controller measures the current of the battery, determines whether or not the measured battery current is greater than or equal to a set reference value, activates the recording function when the measured battery current is greater than or equal to the set reference value, and the measured battery current is The vehicle image processing apparatus characterized in that the recording function is minimized or deactivated when it is less than a set reference value. The method of claim 1, wherein the control unit,
When the operation mode is determined as the driving mode, the image processing apparatus for a vehicle, characterized in that the reference value of the impact sensitivity is adjusted downward. The method of claim 1, wherein the control unit,
When the operation mode is determined as the driving mode, the image processing apparatus for a vehicle, characterized in that upwardly adjusting the operation performance of the camera module provided in the image processing apparatus for a vehicle. The method of claim 1, wherein the control unit,
When the operation mode is determined as the parking mode, the image processing apparatus for a vehicle, characterized in that upwardly adjusts a reference value of shock sensitivity. The method of claim 1, wherein the control unit,
When the operation mode is determined as the parking mode, the image processing apparatus for a vehicle, characterized in that downwardly adjusting the operation performance of the camera module provided in the image processing apparatus for a vehicle. delete In the method of controlling a vehicle image processing apparatus,
Receiving the vehicle information from the vehicle through a communication unit communicating with a vehicle control unit (ECU) that receives vehicle information from the vehicle; And
And determining an operating mode of one of a parking mode and a driving mode using the received vehicle information.
The vehicle image processing apparatus includes a driving environment-related function including at least one of a lane departure guidance function and a front vehicle collision guidance function and a parking environment-related function including a motion monitoring and recording function,
When the operation mode is determined as the driving mode, activating the function related to the driving environment and deactivating the function related to the parking environment;
If the operation mode is determined to be the parking mode, deactivating the function related to the driving environment, activating a motion monitoring recording function of the function related to the parking environment, and determining whether motion above a set reference value is detected;
Activating a recording function for a predetermined time when a motion above the set reference value is sensed, and deactivating a recording function when motion below the set reference value is detected or no motion is detected; And
Measures the current of the battery, determines whether the measured battery current is greater than or equal to the set reference value, activates the recording function when the measured battery current is greater than or equal to the set reference value, and the measured battery current is less than or equal to the set reference value If the recording function is minimized or deactivated; Control method of a vehicle image processing apparatus further comprising a. The method of claim 7,
If the operation mode is determined as the driving mode, adjusting the reference value of the impact sensitivity downward
Control method of a vehicle image processing apparatus further comprising. The method of claim 7,
If the operation mode is determined to be the driving mode, adjusting the operation performance of the camera module provided in the image processing apparatus for the vehicle upwardly
Control method of a vehicle image processing apparatus further comprising. The method of claim 7,
If the operation mode is determined as the parking mode, adjusting the reference value of the shock sensitivity upward
Control method of a vehicle image processing apparatus further comprising. The method of claim 7,
If the operation mode is determined to be the parking mode, adjusting the operation performance of the camera module provided in the image processing apparatus for the vehicle downwardly;
Control method of a vehicle image processing apparatus further comprising. delete A computer-readable recording medium in which a program for executing the control method according to any one of claims 7 to 11 is recorded.

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