KR102045913B1 - Method for providing blackbox video and apparatus therefor - Google Patents

Abstract

The present invention relates to a method for providing a black box image for providing a user with a black box image based on the metadata collected by the vehicle black box device and a device therefor. In the black box image providing system according to the present invention, a method for providing a user with a black box image searched based on metadata includes: collecting and storing an image in which metadata is recorded from each vehicle black box apparatus; Receiving an image request message including a search word from a user; And extracting an image recorded with metadata corresponding to the search word and providing the image to the user.

Description

Method for providing a black box image and an apparatus therefor {METHOD FOR PROVIDING BLACKBOX VIDEO AND APPARATUS THEREFOR}

The present invention relates to a method for providing an image captured by a vehicle black box to a user. More particularly, the present invention provides a black box image provided to a user by searching for a black box image based on metadata collected by the vehicle black box device. A method and apparatus therefor.

The vehicle black box device is a recording device installed inside the vehicle to record the driving record of the vehicle in the form of video and sound. The video recorded by the vehicle black box device is used not only as evidence of clarity of responsibility when an accident occurs, but also as a vehicle monitoring purpose in a parked state. The following patent document discloses a vehicle black box device with improved memory performance.

As the utilization of the vehicle black box device increases, the development of process technology and the mass production of the product become possible, the price of the vehicle black box device is also becoming cheaper. For this reason, the overall black box market share is on the rise, and the type and volume of black box contents are also increasing exponentially.

However, until now, black box video has been used only for personal purposes, and the black box video is not shared well due to the lack of related infrastructure. Although some black box video sharing communities distribute black box video on a small scale, efficient black box video distribution has not been realized. In particular, there is a lack of infrastructure that enables easy collection and access of data required for active sharing of black box video.

Korean Patent Publication No. 10-2010-0045292

The present invention has been proposed to solve such a conventional problem, and an object thereof is to provide a method for providing a black box image and an apparatus for sharing the image collected by the vehicle black box device among users.

In addition, another object of the present invention is to provide a method for providing a black box image and a device therefor for selecting and providing a partial image corresponding to a user's requirement to a user.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In the black box image providing system according to the first aspect of the present invention for providing the above object, a method for providing a user with a black box image retrieved based on metadata, each vehicle black box device Collecting and storing from the; Receiving an image request message including a search word from a user; And extracting an image in which metadata corresponding to the search word is recorded and providing the image to the user.

According to a second aspect of the present invention, there is provided an image management apparatus, including: a data collector configured to collect images from which metadata is recorded from each vehicle black box apparatus and store them in a database; A search unit for searching the database for a video in which metadata corresponding to the search word is recorded when the video request message including the search word is received from a user; And an image providing unit extracting an image searched by the searching unit from the database and providing the image to the user.

In the black box image providing system according to the third aspect of the present invention for achieving the above object, a method for providing a user with a black box image retrieved based on metadata, the file name and the name of the image taken from each vehicle black box device; Receiving and storing meta data recorded in the file name; Receiving an image request message including a search word from a user; Identifying metadata corresponding to the search word to identify a file name mapped with the metadata, and identifying a vehicle black box device which transmitted the metadata; Requesting an image transmission corresponding to the file name to the identified vehicle black box device to obtain a captured image from the vehicle black box device; And providing the obtained captured image to the user.

According to another aspect of the present invention, there is provided a video management apparatus including a storage unit for storing a metadata table; A data collection unit which receives metadata from each vehicle black box device, maps the metadata, a file name in which the metadata is recorded, and identification information of the vehicle black box device to record in the metadata table of the storage unit; A search unit configured to receive an image request message including a search word from a user, identify metadata corresponding to the search word, and search the metadata table for a file name mapped to the checked metadata and identification information of the black box device; And an image acquisition unit requesting an image transmission corresponding to the file name to the vehicle black box device having the retrieved identification information, receiving a captured image from the vehicle black box device, and providing the received captured image to the user. It is characterized by.

The present invention saves the metadata collected in the vehicle black box device and proposes an infrastructure for searching the black box using the metadata, thereby actively sharing the black box image among users.

In addition, the present invention has an advantage of providing the image requester by searching for the captured image requested by the image requester more accurately by searching for the image of the vehicle black box device based on the metadata combined with the captured image.

In addition, the present invention provides the video requestor with a partial video corresponding to the playback section of the video file corresponding to the search term, rather than the entire playback section of the video file corresponding to the search word, thereby reducing the traffic of the network and requiring the video requestor. There is an advantage of providing only the selected image.

The following drawings attached to this specification are illustrative of the preferred embodiments of the present invention, and together with the specific details for carrying out the invention serve to further understand the technical spirit of the present invention, the present invention described in such drawings It should not be construed as limited to matters.
1 is a diagram showing the configuration of a black box image providing system according to an embodiment of the present invention.
2 is a diagram illustrating a configuration of an image management server according to an embodiment of the present invention.
3 is a flowchart illustrating a method of collecting an image of a vehicle black box apparatus in a black box image providing system according to an embodiment of the present invention.
4 is a flowchart illustrating a method of providing an image requestor with an image of a vehicle black box apparatus collected by a black box image providing system according to an exemplary embodiment of the present invention.
5 is a diagram illustrating a configuration of a video management server according to another embodiment of the present invention.
6 is a flowchart illustrating a method of collecting metadata of a vehicle black box apparatus in a black box image providing system according to another exemplary embodiment of the present invention.
7 is a flowchart illustrating a method of providing an image requestor with an image of a vehicle black box apparatus in a black box image providing system according to another exemplary embodiment of the present invention.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing the configuration of a black box image providing system according to an embodiment of the present invention.

As shown in FIG. 1, the black box image providing system according to an exemplary embodiment of the present invention includes a vehicle black box device 10, an image management server 20, and a database 30.

Each of the vehicle black box apparatus 10, the client terminal 40, and the image management server 20 communicate with each other through a network 50. The network 50 includes a mobile communication network such as a Long Term Evolution network (LTE), a Wideband Code Division Multiple Access network (WCDMA) network, a Code Division Multiple Access network (CDMA) network, a Wibro network, and a broadband wired network. As a communication network is included, detailed description is omitted since it corresponds to well-known conventional techniques in the present invention.

The vehicle black box apparatus 10 is mounted on a vehicle to capture an image of the surroundings of the vehicle, collect metadata, and transmit the image data recorded with the metadata to the image management server 20.

In detail, when the image is captured in real time by the camera, the vehicle black box apparatus 10 divides and stores the captured image so as to have a preset playback time (eg, 10 minutes). In this case, the vehicle black box device 10 checks the current location information and the current time at a predetermined time (for example, every 1 minute), and then, on a frame unit, currently photographed and stored metadata including the current location information and the current time. By tagging the video data, the metadata is recorded in the video being captured. In other words, meta data is recorded for each playback section in the image stored by the vehicle black box apparatus 10.

Meanwhile, the vehicle black box device 10 transmits each generated metadata to the image management server 20 via the network 50, or manages an image file in which the plurality of metadata is recorded for each playback section. It may also transmit to the server 20.

Meanwhile, when the vehicle black box apparatus 10 receives a request for transmission of a specific image file from the image management server 20, the vehicle black box device 10 may extract the corresponding image file and transmit the image file to the image management server 20. At this time, when the vehicle black box device 10 receives a request for an image file corresponding to a specified playback time from the image management server 20, the vehicle black box device 10 extracts only a section corresponding to the designated playback time from the image management server 20. To send).

The vehicle black box device 10 may be implemented as a single physical device. The vehicle black box device 10 may record an image around a vehicle and record metadata in the captured image and transmit the metadata to the image management server 20. It may be physically separated into a communication terminal (eg, a smartphone). In this case, the communication terminal communicates with the video recording device in a short range wireless communication or a wired cable through a wired cable to receive the image captured by the video recording device in real time, and acquires the GPS coordinate information received through the GPS receiver. The location information is confirmed, and the location information and time are recorded as metadata in the current video frame received from the video recording device. In addition, the communication terminal may transmit a video having a plurality of metadata recorded and having a predetermined playback time to the video management server 20, or transmit metadata without the video to the video management server 20.

The client terminal 40 is a terminal owned by the image requestor, and transmits an image request message in which time information and location information are recorded as a search word, and receives an image of the vehicle black box device 10 that matches the search word. To perform. In this case, the client terminal 40 may transmit the coordinate information corresponding to the two points as the location information to the image management server 20 by clicking two points on the map, and the specific coordinate information or the administrative address information as the location information. The management server 20 may transmit. The client terminal 40 includes a desktop computer, a tablet computer, a smartphone, and the like.

The database 30 stores an image photographed by each vehicle black box device 10.

The image management server 20 collects the images captured by the vehicle black box apparatus 10 as an image management apparatus and provides the image requested by the client terminal 40 to the client terminal 40, thereby providing the vehicle black box apparatus 10. ) To share the video between users. In detail, the image management server 20 receives an image file in which a plurality of metadata is recorded for each playback section from the vehicle black box device 10 and stores the image file in the database 30, and includes a search word from the client terminal 40. When the received video request message is received, an image file having metadata corresponding to the search word is extracted from the database 30 and transmitted to the client terminal 40. Preferably, the video management server 20 selects a playback section in which the metadata corresponding to the search word is recorded from the extracted video file, and transmits a partial video corresponding to the selected playback section to the client terminal 40. .

In addition, when the image management server 20 receives an image request message including a search word from the client terminal 40, the image management server 20 stores the metadata table that stores the vehicle black box device 10 that transmits the metadata corresponding to the search word. Based on the identification, the corresponding image is obtained through the identified vehicle black box device 10 and transmitted to the client terminal 40. Preferably, the video management server 20 checks the video corresponding to the search word and the playback section of the video based on the data recorded in the metadata table, and identifies the video corresponding to the playback section. Obtained through the box apparatus 10 and transmitted to the client terminal 40.

2 is a diagram illustrating a configuration of an image management server according to an embodiment of the present invention.

As shown in FIG. 2, the image management server 20 includes a data collector 210, a storage 220, a converter 230, a searcher 240, and an image provider 250.

The storage unit 220 stores a metadata table in which storage space identification information (eg, directory information and file name) of the metadata collected by the vehicle black box device 10 and the image file in which the metadata is recorded is mapped.

The data collector 210 collects an image file from the vehicle black box device 10 and stores the image file in the database 30. In detail, the data collector 210 receives an image file in which metadata is recorded for each playback section from the vehicle black box device 10 and stores the image file in the database 30. In addition, the data collector 210 extracts metadata for each playback section from the image file, maps the metadata and storage space identification information (for example, a directory and a file name) in which the image file is stored, to store the metadata of the storage unit 220. Write to the metadata table. Meanwhile, the data collection unit 210 may analyze each metadata recorded in the image file, infer the situation information of the vehicle, and additionally record the situation information of the vehicle as the metadata for the image file.

When the conversion unit 230 receives an image file from the data collection unit 210, the conversion unit 230 converts the image file into a plurality of preset formats and stores the image file in the database 30. That is, the conversion unit 230 converts the received image file into a plurality of image files having a preset bit rate, and supports each image file converted at the different bit rate according to the terminal model. A plurality of copies of the image file are generated by converting them into shape files of different formats. For example, the conversion unit 230 may convert the received image file into a plurality of image files having a high quality, a medium quality image, and a low quality image, and for each of the converted image files according to respective image quality, AVI (audio video interleave) , WMV (windows media video), MKV (matroska video), MP4 (mpeg 4) and other file formats can be converted.

The searcher 240 searches for a video file requested from the client terminal 40 in the database 30 and selects a playback section to be transmitted from the searched video file. In detail, when the searcher 240 receives an image request message including a search word such as location information, time information, and vehicle status information from the client terminal 40, the searcher 240 may select an image file in which metadata corresponding to the search word is recorded. The search is performed in the metadata table of the storage unit 220. In addition, the searcher 240 selects a playback section to be transmitted to the client terminal 40 from the metadata recorded for each playback section in the searched video file. .

When the playback section for the video file is selected by the searcher 240, the image provider 250 formats the video formatter 250 based on the traffic of the network 50 and the terminal model information of the client terminal 40. Any one of the converted copy of the image file is extracted from the database 30, and the image data corresponding to the playback section is extracted from the extracted image file and transmitted to the client terminal 40.

3 is a flowchart illustrating a method of collecting an image of a vehicle black box apparatus in a black box image providing system according to an embodiment of the present invention.

Referring to FIG. 3, the vehicle black box apparatus 10 generates an image data of a series of frame units by capturing a surrounding image in real time through a camera, and accumulates and stores the image data (S301). In this case, the vehicle black box device 10 may generate a file name by combining the current date and time, and store and store the image data in an image file having the file name.

Subsequently, the vehicle black box apparatus 10 collects meta data including the location information and the shooting time by checking the current location information and the current time (that is, the shooting time) at a predetermined time (for example, every minute). S303). In addition, the vehicle black box device 10 may additionally collect sensing information received from each sensor such as an impact sensor and a gyro sensor provided in the vehicle as metadata.

Next, the vehicle black box apparatus 10 tags the collected metadata, that is, metadata including current location information, shooting time, sensing information, and the like, on the image data in the frame unit that is currently generated to capture the captured image. Meta data is recorded for each reproduction section (S305). Here, the reproduction section is divided according to the time interval (eg, 1 minute interval) for collecting the metadata in the vehicle black box device 10.

Subsequently, when the total playback time of the accumulated and stored video file reaches a preset playback time (that is, when the number of frames constituting the video file reaches a preset frame number) ), Another image file is created by combining the current date and time. In addition, the vehicle black box device 10 accumulates and stores image data in units of frames in another generated image file, and has a predetermined playback time and is generated immediately before the plurality of metadata are recorded for each playback section. The image file is transmitted to the image management server 20 (S307). That is, the vehicle black box apparatus 10 transmits an image file in which metadata is recorded for each playback section to the image management server 20. In this case, the vehicle black box device 10 transmits its identification information to the image management server 20.

Then, the data collection unit 210 of the image management server 20 stores the received image file in the database 30 (S309). Preferably, the data collection unit 210 identifies a storage area allocated to the vehicle black box device 10 based on the identification information of the vehicle black box device 10, and the database 30 corresponding to the storage area. Save the image file in the area of).

Meanwhile, the data collector 210 may analyze each metadata recorded in the image file, infer the situation information of the vehicle, and additionally record the situation information of the vehicle as metadata. For example, the image management server 20 analyzes each GPS coordinate information recorded in the image file, and determines whether the vehicle is stopped, driving, slowing, left turning, or right turning based on the GPS coordinate information. In addition, it may additionally record as metadata of the image file. In addition, the data collection unit 210 may play back the image file, recognize the number of nearby vehicles, and then record the recognized neighboring vehicle number as meta data in the image file.

Next, the image conversion unit 230 of the image management server 20 converts the received image file into a plurality of preset formats, and stores the converted image file in the storage area of the vehicle black box device 10. It is stored in the storage location of the database 30 corresponding to the (S311). In detail, the image converter 230 converts the received image file into a plurality of image files having a preset bit rate, and converts each image file converted at different bit rates according to the terminal model. A plurality of copies of the image file are generated by converting them into shape files of different formats. For example, the conversion unit 230 may convert the received image file into a plurality of image files having a high quality, a medium quality image, and a low quality image, and for each of the converted image files according to respective image quality, AVI (audio video interleave) , WMV (windows media video), MKV (matroska video), MP4 (mpeg 4) and other file formats can be converted.

Subsequently, the data collection unit 210 extracts a plurality of metadata from the image file, and stores the metadata and storage space identification information (for example, a directory and a file name) in which the image file is stored. Write to the table (S313).

Next, the data collection unit 210 analyzes each metadata recorded in the image file, infers the situation information of the vehicle, and additionally records the situation information of the vehicle as metadata for the image file (S315). . For example, the image management server 20 analyzes each GPS coordinate information and sensing information recorded in the image file, and based on the GPS coordinate information and the sensing information, the vehicle is in an accident, stopped, general driving, slowing, Whether it is being rotated to the left or to the right may be checked and additionally recorded as metadata of the image file.

4 is a flowchart illustrating a method of providing an image requestor with an image of a vehicle black box apparatus collected by a black box image providing system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the client terminal 40 owned by the image requester includes search terms such as location information, time information, situation information of the vehicle (eg, driving, stopping, right turning, etc.) and its own terminal model information. The transmitted video request message is transmitted to the video management server 20 (S401). In this case, when the image requester selects two points on the map, the client terminal 40 may transmit coordinate information corresponding to the two points to the image management server 20 as location information, and transmit specific coordinate information or administrative address information. The location information may be transmitted to the video management server 20. That is, the image requester may request the vehicle management server 20 for an image corresponding to at least one of time information, location information, and situation information of the vehicle, and also an administrative address, coordinate information for one point, or two points as location information. Coordinate information may be input, and information such as stopping, driving, and right turning may be input as situation information of the vehicle.

Then, the searcher 240 of the image management server 20 checks whether there is an image file corresponding to the search word based on the data recorded in the metadata table (S403). In this case, when the location information of the search word includes two coordinate information, the searcher 240 generates a predetermined polygon in which the two coordinates are vertices or generates a predetermined circle in which the two coordinates form a circumference of the circle. It is checked whether metadata corresponding to the location information included in the generated area is searched in the metadata table of the storage unit 220. For example, the searcher 240 may generate a rectangular area such that the two coordinates face each other in a diagonal direction, and generate a predetermined circle such that the two coordinates face each other and are disposed around the circle. In addition, when the searcher 240 includes specific coordinate information as the location information of the search word, metadata corresponding to the location information within a critical radius (for example, 500 m) is stored in the storage unit 220 based on the location information. Check whether the data is retrieved from the metadata table.

Subsequently, if there is no image file having metadata corresponding to the search word, the search unit 240 of the image management server 20 sends a client an image non-existence notification message indicating that the image requested by the image requester has not been searched. Transmission to the terminal 40 (S405).

On the other hand, if there is an image file having metadata corresponding to the search word, the searcher 240 checks the metadata corresponding to the search word among metadata recorded for each playback section in the video file, and checks the metadata. The playback section in which data is recorded is checked, and the playback section is selected as the playback section to be transmitted to the client terminal 40 (S407).

Subsequently, the image provider 250 checks the traffic of the network 50 and the terminal model of the client terminal 40, and determines the format and the image quality of the image file to be transmitted based on the network traffic and the terminal type ( S409, S411). For example, when the traffic state of the network 50 is poor, normal, or good, the image providing unit 250 may determine the image quality of an image file to which a low, medium, or high quality image file is to be transmitted. In this case, the image providing unit 250 transmits the test packet to the client terminal 40 via the network 50, analyzes the response packet transmitted from the client terminal 40 receiving the test packet, and then network 50. ), And may check the traffic state of the network 50 in real time in conjunction with a network load monitoring server (not shown). In addition, the image providing unit 250 confirms the model information of the client terminal 40 included in the image request message, and checks the image format supported by the client terminal 40 based on the model information. The video format is determined as the video format to be transmitted to the client terminal 40.

Next, the image provider 250 checks the image file corresponding to the determined image quality and the determined image format in the database 30 among the copies of the image file searched by the searcher 240, and then checks the image file. In step S413 and S415, video data corresponding to the selected playback section is extracted and transmitted to the client terminal 40.

Accordingly, the client terminal 40 does not receive the entire playback section of the video file corresponding to the search word, but rather the partial image in which the metadata corresponding to the search word is recorded in the playback section of the video file. Received from) and output.

Meanwhile, when the client terminal 40 requests an image, the image management server 20 requests and acquires an image from the vehicle black box device 10 having the image, and then obtains the image from the client terminal 40. Can also be transmitted.

5 is a diagram illustrating a configuration of a video management server according to another embodiment of the present invention.

As shown in FIG. 5, the image management server 20 according to another exemplary embodiment of the present invention may include a data collector 510, a storage 520, a converter 530, a searcher 540, and an image acquirer. A portion 550 is included.

The storage unit 520 stores a metadata table to which meta data, identification information of the vehicle black box device 10, image file names, and reproduction time information of the image file tagged with metadata are mapped.

The data collection unit 510 receives metadata, an image file name, and playback section information of the image file tagged with metadata from the vehicle black box device 10, and reproduces the received metadata, image file name, and image file. The section information and the identification information of the vehicle black box device 10 are mapped and stored in the metadata table of the storage unit 520. In addition, the data collection unit 510 may analyze the metadata received from the vehicle black box apparatus 10, infer the situation information of the vehicle, and additionally record the situation information of the vehicle as metadata.

When the conversion unit 530 acquires the image from the image acquisition unit 550, the image is converted and transmitted to the client terminal 40 according to the traffic of the network 50 and the terminal model of the client terminal 40 requesting the image. .

The searcher 540 identifies the vehicle black box device 10 that holds the image file requested by the client terminal 40 and selects a playback section to be transmitted from the image file. In detail, when the search unit 540 receives a video request message including a search word such as location information, time information, situation information, etc. from the client terminal 40, the vehicle black box device which holds an image file corresponding to the search word. (10) is searched in the metadata table of the storage unit 520. In addition, the search unit 540 checks the metadata corresponding to the search word among a plurality of metadata mapped with the name of the searched image file (ie, the file name) and stores the reproduction section of the metadata in the storage unit 520. The playback section is selected as a playback section to be transmitted to the client terminal 40 by checking in the metadata table.

The image acquisition unit 550, when the vehicle black box device 10 and the image file name are identified by the search unit 540 and a playback section is selected, the image acquisition unit 550 records an image data request message recorded with the video file name and the selected playback section. After transmitting to the identified vehicle black box device 10, image data corresponding to the playback section is obtained from the vehicle black box device 10 among all image data stored under the image file name.

6 is a flowchart illustrating a method of collecting metadata of a vehicle black box apparatus in a black box image providing system according to another exemplary embodiment of the present invention.

Referring to FIG. 6, the vehicle black box apparatus 10 generates an image data in a series of frame units by capturing an image in real time through a camera, and accumulates and stores the image data (S601). In this case, the vehicle black box device 10 may generate a file name by combining the current date and time, and store and store the image data in an image file having the file name.

Subsequently, the vehicle black box apparatus 10 collects meta data including the location information and the shooting time by checking the current location information and the current time (that is, the shooting time) at a predetermined time (for example, every minute). S603). In addition, the vehicle black box device 10 may communicate with an impact sensor, a gyro sensor, etc. provided in the vehicle, and additionally collect sensing information received from each sensor as metadata.

Next, the vehicle black box apparatus 10 tags the collected metadata, that is, metadata including current location information, shooting time, sensing information, and the like, on the image data in the frame unit that is currently generated to capture the captured image. Meta data is recorded for each reproduction section (S605).

Subsequently, the vehicle black box apparatus 10 transmits the meta data to the image management server 20 (S607). In this case, the vehicle black box device 10 transmits, to the image management server 20, the identification information, the image file name tagged with the metadata, and the playback section information of the image file tagged with the metadata, in addition to the metadata. do.

On the other hand, when the total playback time of the accumulated and stored video files reaches a preset playback time (that is, the number of frames constituting the video file reaches a preset frame number) ), Another image file is created by combining the current date and time to accumulate and store image data in units of frames in another image file thus created, and record the metadata collected in the another image file. The data is transmitted to the video management server 20.

Next, when the data collection unit 510 of the image management server 20 receives the meta data from the vehicle black box device 10, the vehicle black box device 10 may be checked by identifying identification information of the vehicle black box device 10. ) Is identified (S609). Subsequently, the data collection unit 510 maps the received metadata, the identification information of the identified vehicle black box device 10, the image file name, and the playing section information of the image file tagged with the metadata to store the storage unit 520. In the meta data table (S611).

Subsequently, the data collection unit 510 analyzes metadata received from the vehicle black box device 10, infers the situation information of the vehicle, and additionally records the situation information of the vehicle as metadata (S613). That is, the data collection unit 510 compares and analyzes the metadata previously received from the vehicle black box device 10 and the received metadata so that the vehicle is in an accident, stopped, left turn, normal driving, and right turn. It is inferred whether or not it is slow, and additionally recorded in the metadata.

7 is a flowchart illustrating a method of providing an image requestor with an image of a vehicle black box apparatus in a black box image providing system according to another exemplary embodiment of the present invention.

Referring to FIG. 7, the client terminal 40 owned by the video requester transmits a video request message including a search term such as location information, time information, situation information, and own terminal model information to the video management server 20. (S701). In this case, when the image requester selects two points on the map, the client terminal 40 may transmit coordinate information corresponding to the two points to the image management server 20 as location information, and transmit specific coordinate information or administrative address information. The location information may be transmitted to the video management server 20.

Then, the search unit 540 of the image management server 20 searches whether the metadata corresponding to the search word exists in the metadata table of the storage unit 520, so that the image requested by the client terminal 40 exists. It is determined whether or not (S703). In this case, when two coordinates information is included as the location information of the search word, the search unit 540 generates a predetermined polygon in which the two coordinates are vertices, or generates a predetermined circle in which the two coordinates form a circle perimeter. The metadata corresponding to the location information included in the generated polygon or circle region is checked in the metadata table of the storage unit 520. For example, the searcher 540 may generate a rectangular area such that the two coordinates face each other in a diagonal direction, and generate a predetermined circle such that the two coordinates face each other and are disposed around the circle. In addition, when the search unit 540 includes specific coordinate information as the location information of the search word, the search unit 540 checks the location information included within the threshold radius (for example, 500 m) based on the location information, and checks the meta information corresponding to the location information. It is checked whether data is retrieved from the metadata table of the storage unit 520.

Subsequently, if the metadata corresponding to the search word is not found in the metadata table of the storage unit 520, the searcher 540 may transmit an image non-existence notification message indicating that the image requested by the image requester has not been searched. And transmits to 40 (S705).

On the other hand, when the metadata corresponding to the search term is searched in the metadata table of the storage unit 520, the searcher 540 checks the image file name mapped to the metadata in the metadata table, and the metadata By identifying the identification information of the vehicle black box device 10 mapped to the metadata table to identify the vehicle black box device 10 holding the image requested by the client terminal 40 (S707). Next, the searcher 540 checks the metadata corresponding to the search word from among the plurality of metadata mapped to the checked image file name, and stores the playback section information mapped to the metadata to the metadata of the storage unit 520. Check in the table. The search unit 540 selects the checked playback section as the playback section to be transmitted to the client terminal 40 (S709).

Subsequently, when the vehicle black box device 10 and the image file name are identified by the search unit 540 and the playback section is selected, the image acquisition unit 550 sends an image data request message in which the image file name and the selected playback section are recorded. The identified vehicle black box device 10 is transmitted (S711).

Then, the vehicle black box device 10 checks the image file to be transmitted, based on the image file name recorded in the image transmission request message, and the image corresponding to the playback section among the entire playback sections stored as the checked image file. The data is extracted and transmitted to the video management server 20 (S713 and S715).

Then, the image acquisition unit 550 of the image management server 20 stores the image data received from the vehicle black box device 10. Next, the converter 530 checks the traffic state of the network 50 and the terminal model of the client terminal 40, and determines the format and the image quality of the video file to be transmitted based on the network traffic and the terminal model. (S717) For example, when the state of the network 50 is bad, normal, or overloaded, the converter 530 may determine the quality of the video file to which a low, medium, or high quality video file is to be transmitted. In this case, the image acquisition unit 550 transmits the test packet to the client terminal 40 via the network 50, analyzes the response packet transmitted from the client terminal 40 receiving the test packet, and then network 50. ), And may check the traffic state of the network 50 in conjunction with a network load monitoring server (not shown). In addition, the image acquisition unit 550 confirms the model information of the client terminal 40 included in the image request message, and checks the image format supported by the client terminal 40 based on the model information. The video format is determined as the video format to be transmitted to the client terminal 40.

Next, the conversion unit 530 converts the image data stored in the image acquisition unit 550 into the determined format and image quality, and transmits the converted image data to the client terminal 40 (S719 and S721).

As described above, the present invention stores the metadata collected in the vehicle black box device 10 and proposes an infrastructure that can search the black box using the metadata, thereby actively displaying the black box image among users. Share it. In addition, the present invention searches for the image of the vehicle black box device 10 based on the meta data combined with the image data, thereby providing a more accurate search for the captured image requested by the image requester. In particular, the present invention provides the video requester with a partial video corresponding to the playback section of the video file corresponding to the search term instead of the entire playback section of the video file corresponding to the search word, thereby reducing the traffic of the network 50 and the video. Only the necessary videos are provided to the requester.

Meanwhile, in the above-described embodiments, the image management server 20 transmits the image of the vehicle black box apparatus 10 to the client terminal 40 of the user, but the present invention is not limited thereto. An image of the vehicle black box device 10 that matches the search word may be provided to the user who requested the image. For example, the image management server 20 may provide a corresponding image to the user by attaching the image to the user's e-mail, and also the user in a web library (eg, a UCloud library of KT company) that is allocated by the user. You can save the requested video.

While this specification contains many features, such features should not be construed as limiting the scope of the invention or the claims. Also, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment herein can be implemented individually in various embodiments or in combination as appropriate.

Although the operations are described in a particular order in the drawings, they should not be understood as being performed in a particular order as shown, or in a sequence of successive orders, or all described actions being performed to obtain a desired result. . Multitasking and parallel processing may be advantageous in certain circumstances. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The program components and systems described above may generally be packaged in a single software product or multiple software products.

The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

10: black box device 20: video management server
30: database 40: client terminal
50: network 210, 510: data collector
220, 520: storage unit 230, 530: conversion unit
240, 540: search unit 250: video providing unit
550; Image Acquisition Unit

Claims (14)

A method for providing a user with a black box image searched based on metadata in a black box image providing system,
Collecting and storing an image in which metadata is recorded from each vehicle black box device;
Receiving an image request message including a search word from a user; And
And extracting the image recorded with the metadata corresponding to the search word and providing the image to the user.
The storing may include collecting and storing the image in which metadata is recorded for each reproduction section,
The providing step,
Identifying a playback section in which the metadata corresponding to the search word is recorded in the extracted image; And
And selecting an image corresponding to the playing section from the extracted image and providing the image to the user. delete The method of claim 1,
The receiving may include receiving an image request message including two coordinates as a search word,
The providing step,
Generating a polygon in which the two coordinates are vertices or generating a circle in which the two coordinates are around a circle; And
And extracting the image recorded with the metadata having the location information included in the generated polygon or the original area and providing the image to the user. The method according to claim 1 or 3,
The storing step,
Converting the collected images into a plurality of preset formats and storing the collected images as copies;
The providing step,
Checking the traffic of the network or the terminal model of the user, based on the traffic of the network or the terminal model and extracts any one of the copy of the image recorded with the metadata corresponding to the search word to provide to the user How to provide a black box video. The method according to claim 1 or 3,
The storing step,
And analyzing the situation information of the vehicle based on each metadata, and additionally recording the analyzed situation information of the vehicle in the metadata. A data collector configured to collect images recorded with metadata from each vehicle black box device and store them in a database;
A search unit for searching the database for a video in which metadata corresponding to the search word is recorded when the video request message including the search word is received from a user; And
And an image providing unit extracting an image searched by the searching unit from the database and providing the image to the user.
The data collection unit collects and stores the video in which metadata is recorded for each playback section in the database.
The search unit selects a playback section in which the metadata corresponding to the search word is recorded in the searched image as a playback section to be provided to the user,
And the image providing unit selects an image corresponding to a reproduction section selected by the searching unit from all reproduction sections of the extracted image and provides the image to the user. delete The method of claim 6,
The search unit,
When two coordinates are recorded as position information in the search word, the two coordinates generate a polygon that is a vertex or a circle where the two coordinates become a circumference, and the position included in the generated polygon or circle area And the database is searched for an image in which metadata having information is recorded. A method for providing a user with a black box image searched based on metadata in a black box image providing system,
Receiving and storing a file name of a captured image and metadata recorded in the file name from each vehicle black box device;
Receiving an image request message including a search word from a user;
Identifying metadata corresponding to the search word to identify a file name mapped with the metadata, and identifying a vehicle black box device which transmitted the metadata;
Requesting an image transmission corresponding to the file name to the identified vehicle black box device to obtain a captured image from the vehicle black box device; And
Providing the obtained captured image to the user;
The storing may include collecting and storing metadata for each playback section of the captured image.
The obtaining step,
Identifying a playback section for metadata corresponding to the search word; And
Requesting transmission of the captured image corresponding to the identified playback section to the identified vehicle black box device, and obtaining an image corresponding to the playback section from the identified vehicle black box device from all images corresponding to the file name; Black box image providing method comprising a. delete The method of claim 9,
The receiving may include receiving an image request message including two coordinates as a search word,
The identifying step,
Generating a polygon in which the two coordinates are vertices or generating a circle in which the two coordinates are around a circle; And
Identifying a file name mapped to the metadata having the location information included in the generated polygon or the original area, and identifying the vehicle black box device which has transmitted the metadata; providing a black box image comprising a Way. The method according to claim 9 or 11,
The providing step,
Checking the traffic of the network or the terminal model of the user, and converting the obtained image based on the traffic or the terminal model of the network and providing the black box image to the user. A storage unit for storing a metadata table;
A data collection unit which receives metadata from each vehicle black box device, maps the metadata, a file name in which the metadata is recorded, and identification information of the vehicle black box device to record in the metadata table of the storage unit;
A search unit configured to receive an image request message including a search word from a user, identify metadata corresponding to the search word, and search the metadata table for a file name mapped to the checked metadata and identification information of the black box device; And
An image acquisition unit requesting an image transmission corresponding to the file name to the vehicle black box device having the retrieved identification information, receiving a captured image from the vehicle black box device, and providing the received captured image to the user; and,
The data collection unit collects the metadata for each playback section of the file and records the metadata in the metadata table.
The search unit identifies a playback section in which metadata corresponding to the search word is recorded, selects the checked playback section as a playback section to be provided to the user,
The image acquisition unit requests the transmission of the captured image corresponding to the playback section to the vehicle black box device having the searched identification information, and the vehicle corresponding to the playback section among all images corresponding to the file name is identified for the vehicle. The image management device, characterized in that received from the black box device and provided to the user. delete

Images