KR20130091543A

KR20130091543A - Image play and backup apparatus

Info

Publication number: KR20130091543A
Application number: KR1020120012916A
Authority: KR
Inventors: 송준형
Original assignee: 삼성테크윈 주식회사
Priority date: 2012-02-08
Filing date: 2012-02-08
Publication date: 2013-08-19
Also published as: KR101706215B1

Abstract

PURPOSE: A video play and backup apparatus is provided to back up video data while playing the video without the need to remember the time in the case that a user requests for a backup while watching the video thereby resolving a problem to remember a plurality of backup time sections even in the case of the existence of a plurality of backup sections in one video. CONSTITUTION: A video receiving unit (41) receives recorded video data from a video recording device. A User Interface (UI) providing unit (45) generates a backup event signal based on a user request for a backup. A controlling unit (47) generates a backup command based on the backup event signal. A data backing up unit (49) backs up the selected at least one video data. If the backup command is received while playing the recorded video, a video data processing unit (43) outputs the recorded video data to the UI providing unit and the data backing up unit at the same time. [Reference numerals] (41) Image receiving unit; (43) Image data processing unit; (45) UI providing unit; (47) Control unit; (49) Data backup unit

Description

Image play and backup apparatus

The present invention relates to an image reproducing and backup apparatus.

In order to view images stored in a digital video recorder (DVR) or a network video recorder (NVR), these devices and a user terminal must be connected. However, the user needs to back up the video to the user terminal because he wants to see the video of the specific time zone when he wants without connecting to the equipment.

In general, a separate backup window must be executed to back up the video stored in the DVR or NVR in the user terminal. At this time, if the user was playing the video stored in DVR or NVR, it stops and activates a separate backup window. If the user finds a part to back up while watching the video, the user must check the part from the beginning to the end, remember the time zone, execute the backup window, and input the time to back up.

Recently, even if there are many time zones to be backed up to one image, a function of selecting multiple time zones is provided so that backup can be performed at once without having to turn off and on the backup window several times. However, even in this case, the user needs to search for the parts that need to be backed up one by one and remember the time zones and enter them in the backup window. In addition, if several videos are being played back at the same time and there is a video that needs to be sporadically backed up at different times, each backup stops the entire video, selects the video to be backed up, and executes backup windows one by one. Should. And, in order to determine whether or not to backup the video stored in the DVR or NVR must be backed up because it takes a lot of time.

Korean Patent Publication No. 2008-0074460

The present invention provides an image playback and backup apparatus and method capable of backing up without interruption of the video being played.

An image receiver configured to receive recorded image data through a first communication port from an image recording apparatus according to an exemplary embodiment of the present invention; Provide a user interface (UI) for playing the recorded video data, and if one or more recorded video data is selected from the one or more recorded video data being played on the screen of the UI, and a backup button provided in the UI is clicked, the backup is performed. A UI providing unit generating an event signal; A controller configured to generate a backup command according to the backup event signal; A data backup unit for backing up the selected one or more recorded video data; And an image data processing unit for simultaneously outputting the recorded image data to the UI providing unit and the data backup unit when the backup command is received while the recorded image data is reproduced on the UI screen.

The UI providing unit may generate a backup end event signal when one or more recorded video data among one or more recorded video data being backed up are selected and the backup button is clicked again, and the controller may perform backup according to the backup end event signal. Generates an end command and, when receiving the backup end command, outputs the recorded video data only to the UI providing unit.

The data backup unit records a backup history in a time table of seconds, confirms a backup history of recorded video data to be backed up in the time table, and discards the recorded video data to be backed up if it is already backed up data.

When receiving the reproduction direction information from the image data processing unit, the data backup unit checks the backup history of the recorded image data to be backed up in the time table, and records only the recorded image data of the time interval not backed up in the reproduction direction from the reproduction time. It backs up and discards the recorded video data of other sections.

The data backup unit may include: a file storage unit configured to set a file offset to store the recorded image data to back up the recorded image data. When backing up the recorded image data during forward play, the data backup unit may store the recorded image data as the current file offset. When backing up in the front and backing up recorded video data during reverse playback, the backed up video data is backed up after the current file offset.

When the reproduction speed information is received from the image data processing unit, the data backup unit receives and records the recorded image data at a 1x reproduction speed from the image recording apparatus through the second communication port if the reproduction speed is higher than a specific speed. do.

According to the present invention, when a user attempts to back up while playing an image, the user can simultaneously back up while watching the image without having to remember time. Therefore, even if there are a plurality of sections to be backed up in one image, it is possible to solve the inconvenience of having to memorize the time sections. In addition, since the user can proceed with the backup while watching the image at the same time, there is no need to perform the backup after the image playback is completed, so that time can be avoided to be duplicated, thereby saving time.

In the present invention, the user can observe the image being played and immediately back up the image upon occurrence of any unusual feature. Likewise, if there is no abnormality in the video during the backup, the backup can be stopped immediately.

Although the conventional playback function and backup storage function are separated from each other, the present invention integrates them into one module so that not only one function at a time but also playback and backup can be performed at the same time.

In addition, the present invention, even if the image is being backed up at different time intervals for each image during playback, stops playback of the image one by one, turn on the backup window, and continue to observe multiple images without selectively backing up each image selectively You can back up.

1 is a view showing the configuration of a video surveillance system according to an embodiment of the present invention.
2 is a block diagram schematically illustrating a configuration of an image reproducing and backup apparatus according to an embodiment of the present invention.
3 and 4 are diagrams illustrating exemplary UI screens according to an embodiment of the present invention.
FIG. 5 is a block diagram schematically illustrating a configuration of a data backup unit of FIG. 2 according to an embodiment of the present invention.
6 to 8 are flowcharts schematically illustrating a backup method during image playback of an image reproducing and backup apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Like reference numbers in the drawings denote like elements. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a view showing the configuration of a video surveillance system according to an embodiment of the present invention.

Referring to FIG. 1, the video surveillance system 1 of the present invention may include a camera 2, an video recording device 3, and an image playback and backup device 4.

The camera 2 acquires an image of photographing a specific area. The camera 2 may be connected to the image recording apparatus 3 by wire or wirelessly to transmit / receive image data and control data.

The video recording device 3 records (records) video data received from one or more cameras 2 in real time. The video recording device 3 converts the recorded video data (hereinafter referred to as "recorded video data") into a data stream form in response to a request of the video playback and backup device 4 to the video playback and backup device 4. Output In this case, the video recording device 3 may transmit additional information such as a video recording date, time, and event together with the recorded video data. The video recording apparatus 3 may include a digital video recorder (DVR) and a network video recorder (NVR).

The image reproducing and backup device 4 may be connected to the image recording device 3 by wire or wirelessly to receive the recorded image data from the image recording device 3, decode the received recorded image data, and then play or back up the image. have. The image reproducing and backup device 4 may perform image reproducing and backup functions by software and / or hardware configuration. The video reproducing and backup device 4 may operate as an internal component of the system or may be mounted and operated as a standalone device on a user terminal such as a portable terminal or a PC.

In this embodiment, the monitoring system having the video recording device 3 and the video playback and backup device 4 separately is described as an example, but the video recording device 3 and the video playback and backup device 4 are integrally formed. It is, of course, possible to perform video recording, playback and backup.

2 is a block diagram schematically illustrating a configuration of an image reproducing and backup apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the image reproducing and backup apparatus 4 may include an image receiving unit 41, an image data processing unit 43, a UI providing unit 45, a control unit 47, and a data backup unit 49. have.

The video receiver 41 receives the recorded video data recorded in the video recording device 3 from the video recording device 3 in the form of a stream. Since a plurality of recorded video data can be received at the same time, the video receiver 41 separates the recorded video data so as not to be mixed. The image receiver 41 also determines whether the received recorded image data is normal image data. The video receiver 41 outputs the received recorded video data to the video data processor 43.

The video data processing unit 43 receives the recorded video data, and separates various additional information (recording time, event, etc.) encoded together with the recorded video data from the recorded video data. The image data processor 43 converts the recorded image data into a form that can be reproduced in a user interface (UI). This is called decoding. After the decoding is completed, the image data processor 43 provides the recorded image data and the additional information to the UI provider 45. When the image data processing unit 43 receives a backup command from the control unit 47, the image data processing unit 43 simultaneously provides the backup target recorded image data to the UI providing unit 45 and the data backup unit 43. When the image data processing unit 43 receives the backup end command, the UI providing unit 45 continuously provides the recorded image data, and the provision of the recorded image data to the data backup unit 43 is stopped.

The UI providing unit 45 provides a display unit (not shown) with a UI for receiving a user command through an input unit (not shown) for image reproduction and backup. The input unit may include a mouse, a keyboard, a touch means, and the like. The display unit may provide visual information and / or audio information to the user, and may include a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), an electrophoretic display panel (EPD), and the like. It may be provided in the form of a touch screen to receive an input through.

The UI providing unit 45 outputs the recorded image data received from the image data processing unit 43 together with additional information to the UI screen. The plurality of recorded image data may be simultaneously output on the UI screen and reproduced. When the user selects a part of the image data being played on the UI screen and clicks the backup button, the UI provider 45 transmits the backup event to the controller 47. Subsequently, when the user selects some of the image data that is being backed up on the UI screen and clicks the backup button again or clicks a separate backup end button, the UI providing unit 45 transmits a backup end event to the controller 47. do.

In the UI screen, a timeline for displaying recording time of the recorded image data is provided for each image so that a user can search for desired image data. Accordingly, the user can check the position of the recorded video data to be reproduced (hereinafter referred to as "play time"). The user can move the playback time by selecting a bar of the timeline or a time scale displayed on the timeline. Alternatively, in the case of a touch display unit, the playback time may be moved by touching the timeline. For example, if the user moves the bar of the timeline currently located at 12:10 to 15:30, the playback of the video data recorded at 12:10 ends and the video data recorded at 15:30 is played.

In addition, the user can set the play time, play direction (forward play or reverse play), and play speed (1, 2, 4, 8, 16x speed, etc.) using the play mode menu provided in the UI screen. .

The UI providing unit 45 generates the corresponding event signal when the user moves the play time, changes the play direction, and changes the play speed through the timeline or the play mode menu during play or during play and backup. )

The controller 47 controls the overall operation of the image reproducing and backup device 4. Upon receiving the backup event signal, the controller 47 checks the backup target image, checks various states such as authority, playback speed, backup storage location, and transmits a backup command to the image data processing unit 43 together with the corresponding information. . When the controller 47 receives the backup end event signal, the controller 47 transmits a backup end command to the image data processor 43. In addition, when the controller 47 receives an event signal such as moving of a playback time, changing a playing direction, and changing a playing speed, the controller 47 transmits a corresponding command to the image data processing unit 43 together with related information.

The data backup unit 49 receives a backup command and recorded image data from the image data processing unit 43 and backs up the recorded image data to a designated type (.avi, .sec, .wav, ...) on a designated storage medium. do. In addition, the data backup unit 49 receives information and commands related to the reproduction time shift, the reproduction direction change, the reproduction speed change, and the like from the image data processing unit 43, so that the backup data is backed up without error, loss, and duplication.

3 and 4 are diagrams illustrating exemplary UI screens according to an embodiment of the present invention.

Referring to FIG. 3, a plurality of images may be reduced and reproduced on the UI screen. In FIG. 3, twelve recorded image data may be provided in one UI screen, and one, two, three, four, seven, eight, and ten recorded image data are reproduced. When the user selects specific recorded video data with a mouse, the selected recorded video data may be enlarged and reproduced on one UI screen. For example, if the second recorded video data being played is selected with a mouse, the second recorded video data may be enlarged and reproduced on the entire UI screen. The UI screen may include a backup button BB for backup.

Referring to FIG. 4, when one or more of the plurality of recorded video data to be backed up is to be backed up, the user selects one or more of the recorded video data with a mouse and clicks the backup button BB. The selected recorded image data may be highlighted. Next, when the backup button BB is clicked, a menu window for backup setting is displayed around the backup button BB, and the user can set a storage medium and a storage type for each image. FIG. 4 illustrates an example in which 2, 3, and 10 recorded video data are selected as backup data, and 2, 3, and 10 recorded video data are simultaneously backed up.

When the backup is to be terminated, when the user selects one or more recorded video data among the recorded video data being reproduced and backed up with the mouse and clicks the backup button BB again, the backup window may be selected in the menu window.

In FIG. 3 and FIG. 4, backup and backup end are performed by using one backup button BB. However, the present invention is not limited thereto, and backup and backup end buttons may be separately provided to perform backup and backup end. Alternatively, backup and backup termination can be performed by a menu window displayed by left mouse click instead of a button.

On the other hand, when the user reverse playback while playing and backup at the same time, there is a problem that the backup data is stored upside down. In addition, forward playback causes a problem of backing up data that has already been backed up again. When the user performs fast playback (16 times faster), the number of frames of the recorded video data input from the video recording device 3 to the video playback and backup device 4 is reduced. For example, when 20 frames are inputted per second during 1x playback, only about 2 frames per second may be input when played back at 16x. At this time, when the backup is performed simultaneously with the playback, a small number of video frames are stored as backup data, and when the playback is performed, video disconnection occurs. In addition, when the playback time of the recorded video data is changed during backup during playback, for example, when the playback time is shifted to 02:30 after watching the video at 13:00, the previously stored backup data is duplicated. There is a problem of backing up again, and if you move the play time several times, the backup data is mixed. For example, the above-described problems may occur at the same time as two or more times, such as when the reproduction time is changed at the speed of 16 times or more and the reproduction time is changed.

FIG. 5 is a block diagram schematically illustrating a configuration of a data backup unit of FIG. 2 according to an embodiment of the present invention.

Referring to FIG. 5, the data backup unit 49 may include a communication unit 491, a data receiving unit 493, a control unit 495, a time table 497, and a file storage unit 499.

The communication unit 491 receives a backup command and time information from the image data processing unit 43, and the data receiving unit 491 receives recorded video data from the image data processing unit 43 as backup data. Here, the time information corresponds to the reproduction time of the backup data.

The controller 495 divides 24 hours a day into seconds and manages the list in a time table 497. The time of the time table 497 corresponds to the reproduction time of the backup data. The controller 495 records in the time table 497 as a history whether or not backup data is received in the corresponding time interval.

When the data receiving unit 491 receives the backup data, the controller 495 compares the reproduction time of the received backup data with the time table 497. The controller 495 checks whether there is a history of the backup data received at the corresponding time of the time table 497 corresponding to the reproduction time of the received backup data. If the backup data has not been received at the corresponding time, the controller 495 records that the backup data has been received at the corresponding time of the time table, and backs up the received backup data to the file storage 499. If there is a history that the backup data has already been received at the corresponding time of the time table, the controller 495 drops the received backup data.

The file storage unit 499 stores the backup data received from the control unit 495. The file storage unit 499 is a storage medium integrally provided or removable in the image reproducing and backup device 4 and may include a hard disk drive (HDD), a USB, and the like.

When the reproduction direction of the image is changed during reproduction and backup, the communication unit 491 may receive the reproduction direction information together with the time information of the backup data from the image data processing unit 43. The reproduction direction information indicates forward reproduction or reverse reproduction, and includes a reproduction direction change from the forward direction to the reverse direction or a reproduction direction change from the reverse direction to the forward direction.

When the communication unit 491 receives the time information and the reproduction direction change information, the control unit 495 notifies the file storage unit 499 of the time information and the reproduction direction information.

When the reproduction direction information is received along with the time information during the backup, the controller 495 compares the reproduction time of the backup data with the time table 597. The control unit 495 notifies the file storage unit 499 of the backup time of the time closest to the reproduction time of the backup data in the time interval not backed up in the reproduction direction from the time table 597. The controller 495 backs up only the backup data of the time interval not backed up in the reproduction direction to the file storage unit 499, and discards the backup data of the other time interval.

For example, when the backup data from 02:00 to 02:30 has been backed up, and the user selects the playback time from 02:00 to 02:15 and forward playback, the control unit 405 selects 02. From: 15, the time table 597 is searched for a time section that has never been backed up, and 02:30, which is the closest to 02:15 minutes in the forward direction, is notified to the file storage unit 499 as a backup time. Accordingly, since the backup data from 02:00 to 02:30 is already backed up in the file storage unit 499, the backup data from 02:00 to 02:30 is discarded by the controller 495, and 02: Backup data from 30 is backed up to the file storage unit 499.

The file storage unit 499 receives the backup time from the controller 495, and changes the file offset to store the backup data into the backup time. The file storage unit 499 stores subsequent backup data at the changed file offset.

The file storage unit 499 inserts backup data received during reverse playback in the beginning of the file offset currently indicated. The file storage unit 499 inserts the backup data received during the forward playback to the rear of the file offset currently indicated. Accordingly, after the backup is completed, the video is normally output when the file is played.

In addition, the communication unit 491 may receive the reproduction speed change information from the image data processing unit 43 during backup.

When the user plays back 16 times faster, the video data processor 43 transmits the playback speed change information to the communication unit 491, and does not transmit the backup data. On the other hand, up to 8x speed, the same number of frames as 1x playback is transmitted, so no separate processing is required.

The communication unit 491 requests backup data directly to the video recording apparatus 3 after generating a separate communication port when the playback speed is faster than 16 times. When the video recording device 3 receives a request for backup data transmission from the communication unit 491 of the data backup unit 49, the data recording unit 3 transmits the backup data at a 1x reproduction speed according to the playback direction and playback time. 493).

When the playback speed is lowered to less than 16 times again, the video data processing unit 43 transmits the playback speed change information to the communication unit 491 of the data backup unit 49, and transfers the backup data to the data receiving unit of the data backup unit 49. Send to (493). The communication unit 491 requests the video recording device 3 to stop transmitting the backup data when the reproduction speed is lowered to less than 16 times the speed, and removes the communication port generated separately.

6 to 8 are flowcharts schematically illustrating a backup method during image playback of an image reproducing and backup apparatus according to an embodiment of the present invention. In the following, detailed descriptions of contents overlapping with those described with reference to FIGS. 1 to 5 will be omitted.

Referring to FIG. 6, the image reproducing and backup apparatus 4 receives and reproduces one or more recorded image data recorded in the image recording apparatus 3 from the image recording apparatus 3 (S61). The video reproducing and backup device 4 receives the recorded video data through a first communication port connected to the video recording device 3.

When the user selects a part of the plurality of recorded video data that is being played on the UI screen and clicks the backup button (S63), the video reproducing and backup device 4 simultaneously backs up the selected backup target recorded video data (S65). ). Specifically, the image reproducing and backup device 4 compares the reproduction time of the backup data with the stored time table to check whether the backup data is already backed up. The video reproducing and backup device 4 discards the backup data if the backup data has already been backed up, and otherwise backs up the backup data. The video reproducing and backup device 4 can back up by selecting the corresponding recorded video data and clicking the backup button even when a backup of other recorded video data is requested during the backup.

Thereafter, when the user selects a part of the plurality of recorded video data that is being backed up on the UI screen and clicks the backup button again (S67), the video reproducing and backup device 4 ends the backup (S69). Playback of the recorded video data whose backup has ended is maintained until the end of playback.

Referring to FIG. 7, the video reproducing and backup apparatus 4 backs up the backup data (S71). The video reproducing and backup device 4 searches for a time section that has not been backed up in the changed reproducing direction from the changed reproducing time when receiving the reproducing time change or reproducing direction change information during the backup (S73). The image reproducing and backup apparatus 4 discards the backup data of the time interval in which the backup data is backed up, and backs up only the backup data of the time interval in which the backup data has not been backed up (S77). The video reproducing and backup device 4 searches for the time closest to the reproducing time among the time sections which have not been backed up in the reproducing direction to prevent redundant backup.

Referring to FIG. 8, the video reproducing and backup device 4 backs up the backup data (S81). When the image reproducing and backup device 4 receives the reproduction speed change information during the backup (S83), it determines whether the changed reproduction speed is the reproduction which is 16 times faster or more (S85). If the image reproducing and backup device 4 is faster than 16 times faster, the image reproducing and backup device 4 backs up from the image recording device 3 at a 1x reproduction speed through a second communication port separate from the first communication port connected to the image recording device 3. The data is received and backed up (S87). The video playback and backup device 4 removes the second communication port when the playback speed is less than 16x speed or when the playback speed is changed to less than 16x speed. Receive and back up.

An embodiment of the present invention is a technology capable of backing up images that require backup at the same time as playing a plurality of images, the hard disk is stored in the DVR (Digital Video Recorder) or NVR (Network Video Recorder) in the integrated control software It can be applied when backing up to a storage device such as USB or USB. Embodiments of the present invention can be applied not only to the integrated control software but also to software that needs to be backed up to a storage device while playing back images in real time.

In addition, the embodiment of the present invention can be used for smart phones or cloud services. For example, when playing a video stored in a cloud server with a computer or a mobile device using a cloud service and simultaneously downloading the video to a device, according to an embodiment of the present invention, a user simultaneously views a video while viewing a video. Because it can be saved as a video, you can use the function that you can watch the video all the time without a network connection.

According to the embodiment of the present invention, the backup is simply performed by clicking on the backup button, thereby alleviating the inconvenience of memorizing the user's desired position to back up and opening the backup window. In addition, efficient playback and backup can be performed simultaneously without errors, loss, and duplication of backup data.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation and that those skilled in the art will recognize that various modifications and equivalent arrangements may be made therein. It will be possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims

An image receiving unit which receives the recorded image data from the image recording apparatus through the first communication port;
Provide a user interface (UI) for playing the recorded video data, and if one or more recorded video data is selected from the one or more recorded video data being played on the screen of the UI, and a backup button provided in the UI is clicked, the backup is performed. A UI providing unit generating an event signal;
A controller configured to generate a backup command according to the backup event signal;
A data backup unit for backing up the selected one or more recorded video data; And
And a video data processing unit for simultaneously outputting the recorded video data to the UI providing unit and the data backup unit when the backup command is received while the recorded video data is reproduced on the UI screen.

The method of claim 1,
The UI providing unit may generate a backup end event signal when one or more recorded video data of one or more recorded video data being backed up are selected and the backup button is clicked again.
The control unit generates a backup end command according to the backup end event signal,
And the image data processing unit outputs the recorded image data only to the UI providing unit when the backup end command is received.

The method of claim 1, wherein the data backup unit,
Record backup history in a time table in seconds,
And a backup history of the recorded video data to be backed up in the time table, and discards if the recorded video data to be backed up is already backed up.

The method of claim 3, wherein the data backup unit,
When receiving the reproduction direction information from the image data processing unit, confirm the backup history of the recorded image data to be backed up in the time table, back up only the recorded image data of the time interval not backed up in the reproduction direction from the reproduction time, and others A video reproducing and backup device for discarding recorded video data of a section.

The method of claim 4, wherein the data backup unit,
And a file storage unit which sets a file offset to store the recorded image data and backs up the recorded image data.
If the recorded video data is backed up during forward play, the recorded video data is backed up to the beginning of the current file offset.
And a backup device for backing up the recorded video data during the reverse playback, at the back of the current file offset.

The method of claim 1, wherein the data backup unit,
When receiving the reproduction speed information from the image data processor, when the reproduction speed is equal to or higher than a specific speed, the image reproduction and backup for receiving and backing up the recording image data at the 1x reproduction speed from the image recording apparatus through the second communication port Device.