WO2022092328A1 - Procédé de gestion de données multimédias et de données de détection - Google Patents

Procédé de gestion de données multimédias et de données de détection Download PDF

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Publication number
WO2022092328A1
WO2022092328A1 PCT/KR2020/014643 KR2020014643W WO2022092328A1 WO 2022092328 A1 WO2022092328 A1 WO 2022092328A1 KR 2020014643 W KR2020014643 W KR 2020014643W WO 2022092328 A1 WO2022092328 A1 WO 2022092328A1
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WO
WIPO (PCT)
Prior art keywords
media
data
file
sensing data
sensing
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PCT/KR2020/014643
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English (en)
Korean (ko)
Inventor
신해선
박상연
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(주)글루시스
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Publication of WO2022092328A1 publication Critical patent/WO2022092328A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
    • G06F16/71—Indexing; Data structures therefor; Storage structures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
    • G06F16/73—Querying
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/2312—Data placement on disk arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present invention relates to a method for managing media data and sensing data, and more particularly, to a method for integrating media data and sensing data to store, search, and reproduce.
  • An object of the present invention is to provide a method for efficiently storing and managing media data and sensing data by integrating them.
  • a plurality of media files including media data generated by a camera disposed in a monitoring location and sensing data generated by a sensor disposed in the monitoring location together; generating an index file for the media file; and storing the media file and the index file in a storage medium.
  • the method comprising: receiving information about a time interval, event or place requested from a user; and using an index file including information on a plurality of media files, searching for a media file according to a time section, event, or location requested by the user, wherein the media file is located in a preset location. It includes media data and sensing data generated by each of a camera and a sensor, and the index file includes event information about the camera or the sensor and storage location information of the media file, and the index file is stored in the camera.
  • a method for searching media data and sensing data is provided, which is a subfolder of a first folder including an assigned ID and is stored in each of the second folders including a creation date of the media data.
  • an index file for a plurality of media files comprising: searching for a media file according to a time interval, event, or location requested by a user; and decoding the media file to reproduce media data and sensing data included in the found media file, wherein the media data and the sensing data are data generated by each of a camera and a sensor disposed in a preset location.
  • the index file includes event information on the camera or the sensor and storage location information of the media file, and the index file is a subfolder of the first folder including an ID assigned to the camera,
  • a method for reproducing media data and sensing data is provided, wherein the media data is stored in each of the second folders including the creation date.
  • the media data and the sensing data are stored as one file, so that the media data and the sensing data can be efficiently managed.
  • FIG. 1 is a view for explaining a monitoring system according to an embodiment of the present invention.
  • FIG. 2 is a diagram for explaining a file system according to an embodiment of the present invention.
  • FIG. 3 is a diagram for explaining a method of storing media data and sensing data according to an embodiment of the present invention.
  • 4 is a diagram for explaining the format of an MP4 file.
  • FIG. 5 is a diagram for explaining a method of reproducing media data and sensing data according to an embodiment of the present invention.
  • FIG. 6 is a diagram illustrating an interface through which a media file is played according to an embodiment of the present invention.
  • the present invention proposes a file system capable of storing and managing media data and sensing data in an integrated manner.
  • Media data and sensing data may be stored in one file through the file system according to an embodiment of the present invention, and according to an embodiment of the present invention, the stored file may be retrieved and reproduced at high speed.
  • media data and sensing data generated at the same time are stored as one file and an index file including various information about the stored files is created, thereby efficiently storing media data and sensing data. manageable and searchable.
  • the present invention may be implemented in a computing device including a processor and a memory, for example, a desktop, a notebook computer, a data storage device, a network video recorder (NVR) server, and the like.
  • a computing device including a processor and a memory, for example, a desktop, a notebook computer, a data storage device, a network video recorder (NVR) server, and the like.
  • NVR network video recorder
  • FIG. 1 is a view for explaining a monitoring system according to an embodiment of the present invention.
  • a monitoring system includes at least one camera 110 , at least one sensor 120 , a data storage device 130 , and a terminal 140 .
  • the camera 110 and the sensor 120 are disposed at at least one monitoring location, and an ID may be assigned to each of the camera 110 and the sensor 120 . This ID may be determined according to the monitoring location.
  • the camera 110 and the sensor 120 may transmit the generated data to the data storage device through a wired or wireless communication network, and may transmit the data using the Internet of Things (IoT) as an example.
  • IoT Internet of Things
  • the camera 110 may be a CCTV camera as an embodiment, and generates media data including images and sounds.
  • the camera 1110 may continuously photograph the monitoring location or detect a preset event to photograph the monitoring location.
  • the sensor 120 collects various information about the monitoring location.
  • the sensor 120 may be a gas sensor, a temperature sensor, a humidity sensor, etc., and, like the camera 110 , continuously collects information on a monitoring place, or detects a preset event to collect information.
  • the data generated by the camera 110 and the sensor 120 may include IDs for the camera 110 and the sensor 120 and data generation time information.
  • media data may include information about when an image was recorded
  • sensing data may include attribute types and attribute values of the sensing data.
  • the data storage device 130 includes a data receiving unit 131 , a file generating unit 132 , and a file storage unit 133 .
  • the data receiver 131 receives media data generated by the camera 110 and sensing data generated by the sensor 120 .
  • the file generator 132 generates a plurality of media files including media data and sensing data together, and an index file including information on the media files.
  • the file generator 132 may generate a media file and an index file according to the file system according to an embodiment of the present invention.
  • the generated media file and index file are stored in the file storage unit 132 .
  • the file storage unit 132 may include a storage medium such as an SSD or HDD, as an embodiment.
  • the data storage device 130 searches for the stored media file using the index file according to the request of the terminal 140 used by the user, and then provides it to the user. According to an embodiment, the data storage device 130 may stream data reproduced by decoding the searched file to provide it to the terminal 140 or transmit the searched file to the terminal 140 .
  • the terminal 140 requests the data storage device 130 for a media file for a time section, event, or place input by the user.
  • the terminal 140 may display an interface for receiving an input of a time section, event, or place desired by the user.
  • the terminal 140 may play the media file transmitted from the data storage device 130 using a decoder, or may display the streamed data played back in the data storage device 130 on the display device.
  • FIG. 2 is a diagram for explaining a file system according to an embodiment of the present invention, and is a diagram for explaining a storage folder 210 of an index file and an index file 220 used in the file system.
  • the data storage device creates not only a media file including media data and sensing data together, but also an index file including information on the media file.
  • the data storage device stores the index file 220 in a preset index file storage folder 210 .
  • the index file storage folder 210 includes a first folder 211 including an ID assigned to the camera, and a second folder 212 including a media data creation date as a subfolder of the first folder 211 .
  • the index file 220 is stored in the second folder 212 , and one index file 220 may be stored in each of the second folders created for each date.
  • the index file 210 includes an ID for the index file, and includes event information about a camera or sensor and storage location information of a media file.
  • the event information may be data generation time information according to an event type, and includes media data generation time information and sensing data generation time information.
  • the index file 220 may include a Type ID field, a Version field, a Flags field, a Size field, a Create Time field, a First Time field, a Last Time field, an Event Timetable field, and a File Timetable field.
  • a unique ID value for the index file 220 is recorded in the Type ID field, and version information of the index file 220 is stored in the Version field.
  • option information of the index file 220 is recorded, and in the Size field, size information for from the Creat Time field to the File Timetable field is recorded.
  • the creation time of the index file 220 is recorded in the Create Time field.
  • the first time when valid recorded data exists is recorded in the First Time field, and the last time when valid recorded data exists is recorded in the Last Time field.
  • the event type and generation time detected by the camera or sensor are recorded in the Event Timetable field, and the creation time of media data included in the media file is recorded in the File Timetable field.
  • the data storage device can check the index file 220 to easily and quickly search for a media file corresponding to a time section, event, or location requested by a user from among a plurality of media files stored in the storage medium.
  • the data storage device By checking the index file stored in the "/Record/CamID001/20200702" folder, the user can quickly search for the requested media file.
  • FIG. 3 is a diagram for explaining a method of storing media data and sensing data according to an embodiment of the present invention
  • FIG. 4 is a diagram for explaining a format of an MP4 file.
  • a data storage device includes a plurality of media files including media data generated by a camera disposed at a monitoring location and sensing data generated by a sensor disposed at a monitoring location together, and information on media files Creates an index file including (S310). Then, the generated media file and index file are stored in a storage medium (S320).
  • the media file may be, for example, an MP4 file. As shown in FIG. 4 , the MP4 file is largely composed of three boxes.
  • File Type is a file type box that checks file compatibility
  • Media Data is a media data box that stores actual media
  • Movie Metadata is a movie box that stores all metadata of media.
  • the movie box includes a Track box defining a single track in the movie and a User Data box 410.
  • the sensing data is included in the user data box of the MP4 file, so that the media file and the sensing data are combined into one file. can be integrated and stored.
  • the sensing data may include, as an embodiment, an ID for a sensor, sensing data generation time information, and an attribute type and attribute value of the sensing data.
  • Table 1 is a table showing sensing data for the power meter sensor.
  • Sensing data generation time (nano timestamp) sensor ID
  • Sensor property type attribute value 1575858923341393213 PowerMeter Watt 120 1575858923432893458 PowerMeter Watt 60
  • the data storage device composes the data for each field in [Table 1] as a string, converts it into a hex value, and can be added to the user data box.
  • the data storage device separates data generated at different times with a semi-colon (;), and separates each value with a colon (,), "1575858923341393213 ,PowerMeter,Watt,120;1575858923432893458,PowerMeter,Watt,60" can be created and converted into a hex value.
  • the data storage device is a time interval in which media data is generated in step S310. Creates a media file that includes the sensed data generated in . That is, the data storage device synchronizes the generation time of the media data and the generation time of the sensing data, and the sensing data generated at the time the media data is generated is included in the media file together with the media data.
  • the data storage device may generate a plurality of media files in units of the same preset file size, and the file size may be 16 MB as an embodiment.
  • the data storage device may divide the media data according to the passage of time and generate a plurality of media files having a total size of the divided media data and the sensing data of 16 MB. Accordingly, the image playback time of each media file may be different from each other.
  • step S320 the data storage device overwrites the second media file generated at a second point in time later than the first point in the storage area of the storage medium in which the first media file generated at the first point in time is stored.
  • the second media file is written according to whether the area of the storage medium in which the first media file is stored is a bad sector. can be overwritten.
  • the data storage device may overwrite the second media file in another area.
  • the data storage device may additionally create an index file for backup together with the basic index file. Therefore, if the primary index file is damaged, the media file can be retrieved through the index file for backup.
  • FIG. 5 is a diagram for explaining a method of reproducing media data and sensing data according to an embodiment of the present invention
  • FIG. 6 is a diagram illustrating an interface through which a media file is played back according to an embodiment of the present invention.
  • the data storage device searches for a media file according to a time section, event, or location requested by a user by using an index file for a plurality of media files ( S510 ).
  • the data storage device may receive information about a time section, event, or place requested by the user, and may search for a media file according to the received information.
  • the searched media file is decoded, and media data and sensing data included in the searched media file are reproduced (S520).
  • the reproduced media file may be streamed to the user's terminal.
  • step S520 the data storage device displays the generation time of the sensing data generated in the time period requested by the user on the timeline while playing the retrieved media data.
  • a media file to be played is displayed on the screen 610 of the terminal, and a timeline 620 is also displayed.
  • the length of the timeline 620 may correspond to a user's requested time period.
  • the time line 620 may display an event occurrence time, ie, a time point 621 and 622 at which the sensed data is generated, and the event occurrence time may be displayed in synchronization with the current playback time of the media file as an example.
  • the event occurrence time is 2 o'clock and 4 o'clock and the current media file playback time is 2 o'clock
  • the event occurrence time is first displayed at a point corresponding to 2 o'clock on the timeline, and then the media file playback time is 4
  • the event occurrence time may be displayed at a point corresponding to 4 o'clock on the timeline.
  • the sensing data may be displayed in a graph form on the x-y plane separately from the timeline.
  • the x-axis corresponds to the sensing time of the sensor, and may correspond to the user's request time period.
  • the y-axis corresponds to the sensed data. That is, the data storage device may display the change of the sensed data according to the sensing time in the form of a graph on the screen 610 of the terminal.
  • the technical contents described above may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium.
  • the computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination.
  • the program instructions recorded on the medium may be specially designed and configured for the embodiments or may be known and available to those skilled in the art of computer software.
  • Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks.
  • - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.
  • Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.
  • a hardware device may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computational Linguistics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

La présente invention concerne un procédé de stockage et de gestion intégrés et efficaces de données multimédias et de données de détection. Ledit procédé de stockage de données multimédias et de données de détection comprend les étapes consistant à : générer une pluralité de fichiers multimédias dont chacun contient à la fois des données multimédias, générées par une caméra disposée à un emplacement de surveillance, et des données de détection, générées par un capteur disposé à l'emplacement de surveillance, et un fichier d'index qui contient des informations sur les fichiers multimédias ; et stocker les fichiers multimédias et le fichier d'index dans un support de stockage.
PCT/KR2020/014643 2020-10-26 2020-10-26 Procédé de gestion de données multimédias et de données de détection WO2022092328A1 (fr)

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KR1020200138913A KR102422450B1 (ko) 2020-10-26 2020-10-26 미디어 데이터와 센싱 데이터의 관리 방법
KR10-2020-0138913 2020-10-26

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US20050146609A1 (en) * 1997-12-04 2005-07-07 Pentax U.S.A., Inc. Method for sending image data from camera to CCTV network
KR101065552B1 (ko) * 2009-07-06 2011-09-19 박원일 마이크로 ｃｃｔｖ 감시 장치에서의 메모리 카드에 영상 저장 방법
KR20110110895A (ko) * 2010-04-02 2011-10-10 제주대학교 산학협력단 위치와 시간 정보를 이용한 실시간 동영상 및 상황 텍스트 데이터 융합 시스템
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