KR20200087098A - Image-processing Apparatus for Car and Method of Processing Data Using The Same - Google Patents

Abstract

Disclosed is an image processing apparatus for a vehicle to increase the preservation and utilization of data. The image processing apparatus for the vehicle comprises: a first storage unit; a camera module for acquiring an external image; an interface to be connected to a second storage unit; and a control unit to set a recording mode of the image processing apparatus for the vehicle to one among a plurality of recording modes. The plurality of recording modes include at least two among a normal recording mode, an event recording mode, and a parking recording mode. And in the event recording mode, the control unit controls to store the external image acquired by the camera module in the first storage unit and the second storage unit connected through the interface. The external image stored in the second storage unit is encrypted. The interface includes at least one of a wired data port and a memory card port. The second storage unit may be a storage medium to be removed through the interface.

Description

Vehicle image processing device and data processing method {Image-processing Apparatus for Car and Method of Processing Data Using The Same}

The present invention relates to image processing for a vehicle, and relates to an image processing apparatus for a vehicle and a data processing method using the same for storing recorded image data of the image processing apparatus for a vehicle in an internal memory and transmitting the image data to the outside.

Nowadays, many car owners are increasingly aware of the causes of traffic accidents, and the ratio of mounting black boxes for vehicles to minimize disputes between parties due to traffic accidents is gradually increasing. It is a trend that recommends the mandatory installation of black boxes.

The video/audio/location data stored in the black box is stored in a non-volatile memory inside the device or external memory such as SD. In order to move, copy, and check data, the user must remove the black box or remove the external memory and pass through other devices such as a PC. In the case of the internal memory, there is the inconvenience of removing and re-installing the entire black box, and in the case of the external memory (MICRO SD, etc.), there is the inconvenience of loss such as electrostatic damage due to contact or loss of the miniaturized memory when detaching and moving. In addition, when the device or memory is removed for data viewing, there is a problem in that a blank time of the monitoring function through video recording occurs until re-installation.

In addition, in case of witnessing and recording another person's accident while driving, it is inconvenient to move it to a third place to deliver the accident evidence, or to transmit it by e-mail.

An object of the present invention is to provide an image processing apparatus and a data processing method for a vehicle for increasing data preservation and utilization by storing recorded image data of a vehicle black box in an internal memory and transmitting the data to the outside for backup.

An image processing apparatus for a vehicle according to an aspect of the present invention includes: an image processing apparatus for a vehicle that can be mounted on a vehicle, the memory; A camera module for acquiring an external image; An interface for connecting with external devices; And a control unit that stores an external image acquired through the camera module in the memory and transmits the stored external image to the external storage device when an external storage device is connected through the interface.

According to another aspect of the present invention, a data processing method of an image processing apparatus for a vehicle includes a method of processing data in an image processing apparatus for a vehicle that can be mounted on a vehicle, and controls an external image by controlling a camera module provided in the image processing apparatus for a vehicle. Obtaining; Storing the obtained external image in a memory provided in the vehicle image processing apparatus; And transmitting the stored external image to the external storage device when an external storage device is connected through an interface provided in the vehicle image processing device.

According to the image processing apparatus and data processing method for a vehicle according to the present invention, there are the following effects.

According to the present invention, since the data is moved or copied using the user storage device in the black box, the inconvenience of having to remove the device when the user wants to view the stored data can be reduced, and a small memory that can be generated during movement Loss can be reduced.

In addition, according to the present invention, when a black box or memory is removed and moved for data viewing, it is possible to eliminate the monitoring blank time that may occur because recording is impossible.

In addition, according to the present invention, even when witnessing an accident of another person, it is possible to transmit evidence data to the accident party in the field, so that the accident situation can be easily identified.

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 data processing method according to a first embodiment of the present invention.
4 is a flowchart of a data processing method according to a second embodiment of the present invention.
5 is a flowchart of a data processing method according to a third embodiment of the present invention.

The above 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 "modules" and "parts" 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 distinguished from each other in themselves.

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 may be 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 take an image of the front, 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 depending on the configuration of the system, and only the front is photographed, or when composed of a plurality of cameras, the recording position of the camera in various ways according to the purpose of use such as front, rear, side, inside the vehicle, etc. 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 the image data photographed from the camera module 101. The image data has a form in which each frame is gathered several times along the time 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, compression of a digitally converted image is essential. In video compression, a method using a visual characteristic sensitive to low-frequency components and correlation between frames, spatial correlation 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.

In addition, 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 in 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 recorded data and data recorded by an event may be divided and stored in a 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, or a USB memory. 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 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 another vehicle or other device. In addition, the communication unit 105 may transmit and receive vehicle information or surrounding information 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 the 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 device 100 Can be controlled.

The shock detection unit 108 detects the shock applied to the vehicle or generates an event and transmits it to the control unit 107 when the change in acceleration is more than a certain amount. The shock detection unit 108 may include an acceleration sensor, a magnetic field 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 also uses it to calculate vehicle 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 that senses 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, for example, a form of 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 include a key pad dome switch, a touch pad (static pressure/power outage), a jog wheel, a jog switch, and the like.

<Figure 2> System configuration

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, a vehicle image processing system according to the present invention includes a vehicle image processing apparatus 100 mounted on a vehicle, and a user storage device capable of selectively backing up image data stored in the vehicle image processing apparatus 100 ( 200).

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 is stored in the storage unit 104. The input unit 120 transmits a signal input from the outside to the control unit 107, and the image data stored in the storage unit 104 is backed up to the user storage device 200 according to the signal transmitted from the input unit 120. The user storage device 200 may be a portable storage device such as a USB memory, SD card, or micro SD card.

The control unit 107 of the vehicle image processing apparatus 100 backs up the image data stored in the storage unit 104 to the user storage device 200 according to an input signal input from the input unit 120, wherein the input unit 120 May be a physical button that receives physical input from the user, but may also be a UI button on the screen.

Moving and copying of files is possible to view data files in the vehicle image processing apparatus 100. When the user storage device 200 is connected to the vehicle image processing apparatus 100 and the user input (physical button or UI on the screen) is confirmed through the input unit 120, the control unit 107 of the vehicle image processing apparatus 100 is The data stored therein is copied or moved to the user storage device 200.

The operation according to the user input can select the move or copy to delete the original after copying according to the setting, and the data to be moved or copied can be set to the entire data or recently stored data according to the setting.

3 is a flowchart of a data processing method according to a first embodiment of the present invention. The data processing 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, a data processing method according to a first embodiment of the present invention and operations of the image processing apparatus 100 for a vehicle and the image processing system for a vehicle for implementing the same will be described in detail.

Referring to FIG. 3, the control unit 107 may collect image data and/or audio data [S100]. For example, the control unit 107 may collect video data and/or audio data through the camera module 101 and/or the microphone 102.

The control unit 107 may store the collected video/audio data in the storage unit 104 [S200].

The control unit 107 may determine whether a separate user storage device exists [S300].

The controller 107 may copy the stored video/audio data and store it in a separate user storage device 200 when a separate user storage exists according to the determination result of step S300 [S400].

The control unit 107 checks whether there is a storage space for storing the video/audio data in an external device connected through the communication unit 105 or the interface 113, and if the storage space exists, backs up the video/audio data Can. The control unit 107 may back up the video/audio data in real time when a storage space exists in the connected external device.

4 is a flowchart of a data processing method according to a second embodiment of the present invention. The data processing method according to the second 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, a data processing method according to a second embodiment of the present invention and operations of the image processing apparatus 100 for a vehicle and the image processing system for a vehicle for implementing the same will be described in detail.

The data processing method illustrated in FIG. 4 corresponds to a detailed embodiment of step S400 in the data processing method described above with reference to FIG. 3.

The control unit 107 may determine a copy signal of data (image data and/or audio data) input from the outside [S410].

If a data copy signal is present, the control unit 107 may store the image data and/or audio data in a separate user storage device 200 [S420].

The external backup of the video/audio data may be performed by an input generated inside the vehicle image processing apparatus 100 or a request from the user storage device 200. The input of the vehicle image processing apparatus 100 may be through an input unit 120 or an event.

5 is a flowchart of a data processing method according to a third embodiment of the present invention. The data processing method according to the third 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, a data processing method according to a third embodiment of the present invention and operations of the image processing apparatus 100 for a vehicle and the image processing system for a vehicle for implementing the same will be described in detail.

The data processing method illustrated in FIG. 5 corresponds to a detailed embodiment of step S400 in the data processing method described above with reference to FIG. 3.

The control unit 107 may determine whether an event has occurred [S450]. For example, the control unit 107 may analyze the video/audio data to determine whether an event has occurred.

When an event occurs, the control unit 107 may copy the event-generated image data and store the backup in a separate user storage device 200 [S460].

The occurrence of the event occurs when there is an impact due to a vehicle collision, and the copy is made. By simultaneously storing the image in the internal memory of the vehicle image processing apparatus 100 and the user storage device 200, stability against damage can be secured. have. In addition, an event for automatically copying when a specific place is accessed using GPS occurs, so that data in the internal memory can be moved or copied to the user storage device 200.

A specific place designated by the user may be a house or a company, and when approaching to a specific place, the vehicle is terminated and the start of the vehicle is terminated by performing a moving or copying function in anticipation of copying of the image data. You can shorten the time to leave.

The occurrence of the event may occur as an event that requests double storage according to the speed of the vehicle. In the case of an overspeed situation where the risk of an accident is high based on the speed information using GPS, the data is simultaneously stored in the internal memory and the user storage device 200 Stability can be secured.

The image data may be backed up to a connected external device (for example, the user storage device 200) and stored in a format suitable for the external device to facilitate playback on the external device.

The control unit 107 displays device information of the external device and an image format supported by the external device when the vehicle image processing device 100 is connected to the external device through wired or wireless communication or a connector. It is possible to check and store information of the corresponding device and a supported video format in the storage unit 104.

When the vehicle image processing apparatus 100 is connected to the external device, the control unit 107 may check device information and check an image format corresponding to the device information stored in the storage unit 100.

When the vehicle image processing apparatus 100 and the external device are connected, the controller 107 may generate an image file conforming to the video format of the external device and perform a backup to the external device.

When the vehicle image processing apparatus 100 is connected to a plurality of external devices, the control unit 107 generates image data in a format that can be supported by the plurality of external devices and plays them without format conversion when a backup is made to a specific device. You can increase the probability of this being.

If the format supported by the vehicle image processing apparatus 100 and the external device is different, the control unit 107 may generate image data according to the format of the external device when a request is made to move to the external device.

If the format supported by the vehicle image processing apparatus 100 and the external device is different and a copy request is made, the control unit 107 generates image data in a format supported by the vehicle image processing apparatus 100 and stores it 104 You can save the data in a format supported by the external device and store it in the storage of the external device.

The control unit 107 may set the recording function according to the network speed for smooth transmission of data to the storage space of the external device by connecting the vehicle image processing device 100 to the external device.

First, the control unit 107 determines whether an external device is connected in the initializing step of the vehicle image processing apparatus 100.

In addition, the control unit 107 grasps a connected external device, a connection method, and a communication speed. The connection method may be connected in various ways, such as wired or wireless, a connector. Thereafter, the control unit 107 determines the capacity of the allocated memory of the connected external device.

The control unit 107 may set the resolution and the number of frames of the recorded video to a level capable of real-time backup of the recorded video to the external device after the connection method, communication speed, and capacity between the vehicle image processing device 100 and the external device are confirmed. have.

As another embodiment of the present invention, a backup setting of the image processing apparatus 100 for a vehicle may be different depending on whether the vehicle is started.

For example, the control unit 107 connects the storage unit of the external device to the vehicle image processing apparatus 100 at the time when the vehicle starts to turn on, and the vehicle 107 is stored in the storage unit 104 of the vehicle image processing apparatus 100. Check whether the recorded image exists before starting up, and if there is a recorded image, transmit the recorded image from the storage unit 104 to the storage unit of the external device, and if there is no recorded image or transmission of the recorded image is completed, the external device and the vehicle image The connection between the processing devices 100 is blocked.

The control unit 107 transmits an image to a device having a display capable of being reproduced when the image recorded during parking exists in the image processing apparatus 100 for a vehicle at the time when the vehicle starts to be turned on. If there is no video, the driver can be notified by voice and the recording mode can be performed immediately.

The control unit 107 connects the storage unit of the external device to the vehicle image processing apparatus 100 when it is determined that the driver is absent while the vehicle is turned on, and when the recording function is performed, the recorded image is processed by the vehicle image processing apparatus 100 It can be stored at the same time as the storage unit 104 and the storage unit of the external device.

The control unit 107 may simultaneously store only the video recorded by the event among the recorded images of the vehicle image processing apparatus 100 as a storage unit 104 of the vehicle image processing apparatus 100 and a storage unit of an external device.

When the vehicle image processing apparatus 100 is connected to an external device in a state in which the vehicle image processing apparatus 100 is operating in the driving mode, a recorded image by an event is generated in the vehicle image processing apparatus 100 and a memory space in the vehicle image processing apparatus 100 is generated. If insufficient, the control unit 107 requests the external device to connect the external device to the vehicle image processing device 100, transmits the previously stored event recording image to the storage unit of the external device, and stores the vehicle image processing device 100 In the unit 104, the storage space can be efficiently used by deleting.

The data processing 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 data processing method according to the present invention can be executed 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 are 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. In addition, the computer readable recording medium may be distributed over network coupled computer devices so that the computer readable code is stored and executed in a distributed manner.

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 not departing from the technical spirit of the present invention. It is not limited by the drawings. In addition, the embodiments described in this document are not limitedly applicable, and all or part of each of the embodiments may be selectively combined and 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: user storage device

Claims (10)

A first storage unit;
A camera module for acquiring an external image;
An interface for connecting to a second storage unit; And
Includes a control unit for setting the recording mode of the vehicle image processing apparatus to one of a plurality of recording modes;
The plurality of recording modes include at least two of a regular recording mode, an event recording mode, and a parking recording mode,
In the event recording mode, the control unit,
The external image acquired through the camera module is controlled to be simultaneously stored in the first storage unit and the second storage unit connected through the interface, and the external image stored in the second storage unit is encrypted,
The interface includes at least one of a wired data port and a memory card port,
The second storage unit is an image processing device for a vehicle, characterized in that the removable storage medium through the interface. According to claim 1,
The predetermined event,
A vehicle image processing apparatus comprising at least one of an event in which an impact is applied above a predetermined impact value, an event approaching a preset location, and an event exceeding a preset driving speed. The method of claim 1, wherein the control unit,
When there is an external video recorded during parking according to the parking recording mode at the time when the vehicle starts to be turned on, for controlling the vehicle, the communication unit is controlled to transmit the external video recorded during parking to a playable display device. Image processing device. The method of claim 1, wherein the control unit,
When there is no external image recorded during parking according to the parking recording mode at the time when the vehicle starts to be turned on, the vehicle image processing apparatus is characterized in that it is controlled to guide the driver by voice. According to claim 1, The control unit,
If it is determined that the driver is absent while the vehicle starts, the external image acquired through the camera module is controlled to be simultaneously stored in the first storage unit and the second storage unit connected through the interface. Vehicle image processing device. In the data processing method of the image processing apparatus for a vehicle having a first storage unit and a second storage unit,
Obtaining an external image by controlling a camera module provided in the vehicle image processing apparatus;
Setting a recording mode of the vehicle image processing apparatus to one of a plurality of recording modes including at least two of a normal recording mode, an event recording mode, and a parking recording mode; And
In the event recording mode, the external image acquired through the camera module is controlled to be simultaneously stored in the first storage unit and the second storage unit connected through an interface, but the external image stored in the second storage unit is encrypted. And storing it;
The interface includes at least one of a wired data port and a memory card port,
The second storage unit is a data processing method characterized in that the removable storage medium through the interface. The method of claim 6,
The predetermined event,
A data processing method comprising at least one of an event in which an impact is applied to a predetermined impact value or more, an event approaching a preset location, and an event exceeding a preset driving speed. The method of claim 6,
And when an external image recorded during parking exists according to the parking recording mode at a time when the vehicle starts to be turned on, transmitting the external image recorded during parking to a playable display device. Data processing method. The method of claim 6,
And when there is no external image recorded during parking according to the parking recording mode at the time when the vehicle starts to be turned on, guiding the driver with a voice; further comprising a data processing method. The method of claim 6, wherein the control unit,
Further comprising the step of simultaneously storing the external image obtained through the camera module in the first storage unit and the second storage unit connected through the interface when it is determined that the driver is absent while the vehicle is started. Data processing method characterized in that.

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