KR100472546B1 - Recording system and controlling method for security - Google Patents

Abstract

According to the present invention, a multi-screen that is divided and reconstructed into n screens and recorded is divided into a normal recording video portion and an alarm recording video portion according to an event occurrence by using a VBI, and recorded on a storage medium. For the purpose of the present invention, the surveillance images captured by a plurality of surveillance cameras are divided into a general recording image and an alarm recording image of an event occurrence. Unlike the conventional technology of recording by dividing and reconstructing into multiple screens and reproducing the same, a general recorded video portion and an event occur when each image captured by a plurality of surveillance cameras is divided and reconstructed into n screens and recorded in multiple screens. Display by using VBI to distinguish alarm recording video part according to Record the video, and display it so that the normal and alarm recording video can be visually distinguished according to the division mark during playback, so that the user can determine whether the multi-screen displayed through the monitor is the normal or alarm recording video part. Because it can be easily recognized visually, it is possible to prevent frequent and cumbersome operation of the recording system for finding or searching alarm recording images.

Description

Security recording system and its control method {RECORDING SYSTEM AND CONTROLLING METHOD FOR SECURITY}

The present invention relates to a security recording system, and more particularly, a security recording system suitable for recording and reproducing through a recorder and a player after dividing an image photographed by a plurality of security cameras into one multi-screen; The control method is related.

In recent years, the use of a system for recording an unspecified number of visitors to prevent the occurrence of theft or intrusion or to visit with a desired purpose (security recording system or recording preservation recording system) has become commonplace. Alternatively, the recording preservation recording system includes a plurality of cameras each installed at a plurality of specific locations to capture an image, a device for recording and reproducing an image captured by each camera, and a monitor for a display.

Fig. 5 is a block diagram of a conventional security recording system, which includes an operation means 502, an imaging means 504 consisting of a plurality of surveillance cameras 504/1-504/3, a screen dividing means 506, and recording / Playback means 508 and monitor 510;

Referring to FIG. 5, the operation means 502 generates a user operation signal for controlling the recording and reproducing operation of the recording system in response to an operation of a user (for example, a security guard). The signal is transmitted to the recording / reproducing means 508.

In addition, each of the monitoring cameras 504/1-504/3 in the image pickup means 504 is provided at a specific location to pick up an image of a specific area, and each image signal picked up here is the screen division means 506. And recording / playback means 508, respectively. Here, each video signal transmitted to the recording / reproducing means 508 is used as an alarm signal for recording.

Next, the screen dividing means 506 reconstructs each image transmitted from each surveillance camera 504/1-504/3 and reconstructs it into one multi-screen, i.e., three images when the images are transmitted from three surveillance cameras. Reconstructed into multiple screens divided into screens, reconstructed into multiple screens divided into four screens when an image is transmitted from four surveillance cameras, and the reconstructed multiple screens are transmitted to the recording / reproducing means 508.

Meanwhile, the recording / reproducing means 508 is a recording and reproducing apparatus such as, for example, a VCR, a personal video recorder (PVR), and the like, and the multi-screen provided from the screen dividing means 506 in response to an alarm signal for recording. Recording video, i.e., recording a video of a multi-screen on a storage medium such as a video cassette tape or a memory, and reading a video of the multi-screen recorded on the storage medium in response to a playback operation signal from the operation means 502. Displayed through the monitor 510.

At this time, the multi-screen video reproduced through the monitor is stored without displaying any basis for event occurrence (e.g., alarm recording due to intruder occurrence, alarm recording due to user's artificial manipulation, etc.) during recording. Since it is recorded on the medium, it is displayed without any distinction for each of the video (i.e., normal recorded video) in which an event such as intrusion does not occur or the video (i.e., alarm recorded video) in which an event such as intruder occurs.

Therefore, the user (guards, etc.) must check all the images with the naked eye in order to check the recording situation, and in particular, if the user wants to check and play only the video where the event occurred, that is, the alarm recording video, the recording is continued while watching the screen. Operational troubles such as normal playback, rewind playback (reverse playback), high speed rewind playback, and the like, which were operated frequently from time to time, were inevitable.

Accordingly, the present invention is to solve the above problems of the prior art, by dividing the multi-screen recording divided and reconstructed into n screens by using the VBI divided into the normal recording video portion and the alarm recording video portion according to the event occurrence It is an object of the present invention to provide a security recording system and a control method thereof, which can record on a storage medium and visually distinguish and display a normal recorded video portion and an alarm recorded video portion during playback.

Another object of the present invention is to divide the multi-screen recording by dividing and reconstructing into n screens recorded in the storage medium by using the VBI divided into the normal recording video portion and the alarm recording video portion according to the event occurrence, and to detect the VBI during playback The present invention provides a security recording system and a method of controlling the same, which selectively extract, edit and display only an alarm recording video portion.

The present invention according to one aspect to achieve the above object, by dividing and reconstructing each image respectively captured by a plurality of surveillance cameras respectively installed in any particular location and recording in one multi-screen consisting of a plurality of split screens A security recording system for reproducing this, comprising: means for generating a selective recording operation signal in accordance with a user operation; Means for detecting motion at each specific location and generating a motion detection signal; In response to the selective recording operation signal or the motion detection signal, alarm color index information is inserted into the corresponding divided screen, and general color index information is inserted into the other divided screen as VBI, respectively. Means for dividing and reconstructing an image into the multiple screens; Recording / reproducing means for recording the multi-screen reconstructed on the storage medium and reproducing the recorded multi-screen in response to the reproduction operation; And means for displaying each of the divided screens in the reproduced multiple screens in a form including the alarm color index information representing the alarm recording image or the general color index information representing the normal recording image. .

According to another aspect of the present invention for achieving the above object, it is possible to divide and reconstruct each image photographed by a plurality of surveillance cameras respectively installed in any specific place, and to record as a single multi-screen consisting of a plurality of split screens. A control method of a security recording system for reproducing the same, the method comprising: detecting an occurrence of an event while executing a recording mode for recording images captured by the plurality of surveillance cameras on a storage medium; By inserting the color index information for the alarm to the VBI to the corresponding divided screen, the event occurrence is detected, and inserting the general color index information into the VBI to the corresponding divided screen without the occurrence of the event, the image from the respective cameras Dividing and reconfiguring into multiple screens; Recording the reconstructed multi-screen on the storage medium; Checking whether a playback operation of the multi-screen recorded on the storage medium is selected; And when the reproducing operation is selected, displaying each of the divided screens in the reproduced multi-screen in the form of the color index information indicating the alarm recording image or the general color index information indicating the normal recording image. It provides a control method of the security recording system made.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A key technical aspect of the present invention is to divide and reconstruct and record and play back the surveillance images captured by a plurality of surveillance cameras into one multi-screen without dividing the general recording image and the alarm recording image of an event occurrence. Unlike the prior art, when recording a multi-screen by dividing and reconstructing each image captured by multiple surveillance cameras into n screens, a general recorded video portion and an event (motion detection, user-selected recording operation, etc.) are generated. According to the display, the alarm recording video part is displayed so that it can be distinguished and the normal recording video and the alarm recording video can be visually distinguished according to the division display during playback. Whether it is the video portion or the alarm recording video portion. As that with the color red) to be recognized, by these technical means it can easily attain the bar for the purpose of the present invention.

1 is a block diagram of a recording system for security according to an embodiment of the present invention, the operation means 102, the imaging means 104 of a plurality of surveillance cameras (104/1-104/3), motion detection Means 106, screen dividing means 108, recording / reproducing means 110, and monitor 112.

1, the operation means 102 is a user operation signal (for example, selective recording operation signal, for controlling the recording and playback operation of the recording system in response to the operation of the user (for example, security guards, etc.), Generation of a reproduction operation signal, etc., wherein each operation signal generated here is transmitted to the recording / reproducing means 110. Here, when the selective recording operation signal is generated from the operation means 102 according to the user's operation and provided to the recording / reproducing means 110, the recording / reproducing means 110 transmits the corresponding event generation signal through the line L11. The screen division means 108 is provided.

In addition, each of the monitoring cameras 104/1 to 104/3 in the imaging means 104 is provided at a specific location to pick up an image of a specific area, and each image signal captured here is a motion detection means 106. , To the screen dividing means 108 and the recording / reproducing means 110, respectively. Here, each video signal transmitted to the recording / reproducing means 110 may be used as an alarm signal for recording. At this time, the present embodiment has been described as an example of installing only three surveillance cameras, but not three, but four, six, eight or more surveillance cameras may be applied.

Next, the motion detecting means 106 detects motion for each image transmitted from each of the surveillance cameras 104/1-104/3, for example, compares the previous image with the current image while storing the previous image on the time axis. The motion is detected by a method of comparing the before and after images, and the motion detection signal in each of these images is transmitted to the screen dividing means 108 via the line L13.

On the other hand, in the present embodiment has been described as detecting the motion in each video signal captured by the surveillance camera, the present invention is not necessarily limited to this, the motion detection sensor is provided for each specific location where each surveillance camera is installed and these It goes without saying that the motion can be detected based on the detection signal from the sensor.

Next, the screen dividing means 108 divides each image transmitted from each surveillance camera 104/1-104/3 and reconstructs it into one multiple screen, for example, three surveillance cameras 104/1-104. / 3) when the image is transferred, as an example, as shown in Figure 4, reconstructed into a multi-screen divided into three screens 402, 404, 406, the line L11 at the time of reconstruction to such a multi-screen On the basis of the event occurrence signal provided from and / or the motion detection signal provided from L13, the normal recorded video and the alarm recorded video can be distinguished (for example, visually distinguished by color).

For example, when an event generation signal meaning to set an image captured by the surveillance camera 104/1 through the line L11 to alarm recording is transmitted, the screen dividing means 108 monitors the surveillance camera 104/1. Set the VBI (vertical blanking interval) index information inserted between the frame and the image transmitted from the image to red (ie, alarm color index information), and record the remaining two surveillance cameras 104/2 and 104/3. The multi-screen is reconstructed in such a manner that the VBI index information of the image transmitted from the image is set to green (ie, general color index information) and recorded, and then transmitted to the recording / reproducing means 110 through the line L15. Here, the alerting and general color index information is displayed on the monitor in the form of a bar form (transparent or translucent bar), OSD (transparent or translucent OSD) or the like on playback.

Therefore, when the multi-screen recorded on the storage medium of the recording / reproducing means 110 is reproduced and displayed on the monitor 112 through the reconstruction process as described above, the image captured from the surveillance camera 104/1 is displayed. On the screen 402, it is assumed that the image captured from the surveillance camera 104/2 corresponds to the screen 404, and the image captured from the surveillance camera 104/3 corresponds to the screen 406, respectively. ) OSD 402a on red screen is displayed in red, and OSD 404a, 406a on two screens 404, 406 is displayed in green. Therefore, the user can see the color of the OSD displayed on each split screen of the multi-screen, and if the split screen is an alarm recording image due to an event occurrence (i.e., motion detection, user's selective recording), or the general event is not generated. It is easy to recognize whether it is a recorded video, that is, it can be easily recognized in real time without performing a separate playback operation.

In addition, when a motion detection signal is transmitted, which means that motion is detected in the image captured by the surveillance camera 104/2 via the line L13, the screen dividing means 108 may determine the image transmitted from the surveillance camera 104/2. Multi-screen by recording VBI index information inserted between frames in red and recording VBI index information of images transmitted from the other two surveillance cameras 104/1 and 104/3 in green. After reconstructing, the transfer to the recording / reproducing means 110 through the line L15.

Therefore, as described above at the time of playback, since the OSD or bar on each divided screen is displayed in red and green depending on whether an event has occurred, the divided screen may generate an event (that is, motion detection, It is possible to easily recognize in real time whether the alarm recording video by the user's selective recording) or the normal recording video without an event can be observed in real time.

Meanwhile, the recording / reproducing means 110 is a recording and reproducing apparatus such as, for example, a VCR, a personal video recorder (PVR), and the like, and the multi-screen provided from the screen dividing means 108 in response to an alarm signal for recording. Recording video, i.e., recording a video of a multi-screen on a storage medium such as a video cassette tape or a memory, and reading a video of the multi-screen recorded on the storage medium in response to a reproduction operation signal from the operation means 102. The monitor 112 displays a red or green recognition information (a recognition information for distinguishing an alarm recording image or a general recording image) on a display, i.e., each divided screen in the multi-screen, in the form of OSD.

On the other hand, in the above-described embodiment, alarm color index information (for example, red) is inserted as the VBI to the split screen where an event has occurred on the screen splitter side, and general as VBI for the split screen where no event has occurred. Although the present invention has been described by inserting color index information (for example, green), the present invention is not necessarily limited thereto, and the alert classification index information (index information inserted into the split screen where an event occurs) and the general classification index as VBIs are described. Selectively insert information (index information inserted into a split screen where no event has occurred) to record on a storage medium, detect index information during playback, insert a red OSD or the like into the split screen when the index information is divided into alarms. In the case of general index information, the green OSD is inserted and displayed in the split screen. It may be treated with and an advantage that it is possible to obtain the same result substantially.

Next, a process of recording and playing back multiple screens capable of distinguishing between alarm recording and normal recording using the security recording system of the present invention having the above-described configuration will be described.

2 is a flowchart illustrating a process of recording and reproducing by a security recording system according to an embodiment of the present invention.

Referring to FIG. 2, when the security recording system is powered on to execute a recording mode, the image captured from each camera 104/1 to 104/3 is reconstructed into multiple screens through the screen dividing means 108. It is transferred to the recording / reproducing means 110 via the line L15, thereby recording on the storage medium (not shown) (step 202).

While executing such a recording mode, the recording / reproducing means 110 checks whether or not the selective recording operation signal according to the user's operation is input from the operation means 102, and as a result of the check, the selective recording operation signal is inputted. In response, the recording / reproducing means 110 generates an event generation signal corresponding thereto and provides it to the screen dividing means 108 through the line L11.

In addition, the motion detection unit 106 detects motion for each image transmitted from each camera 104/1-104/3, and stores a previous image on the time axis, for example, and compares the previous image with the current image. Motion is detected through a method of comparing a later image, and when a motion is detected in an arbitrary image, a motion detection signal is generated and transmitted to the screen division means 108 through a line L13.

At this time, the motion detection is not a method of detecting motion in the image captured by the cameras 104/1 to 104/3 as described above, for example, motion detection for each specific location where each surveillance camera is installed. It is also possible to provide sensors and to detect movement based on detection signals from these sensors.

That is, the security recording system checks whether an event for which an optional operation signal is input or a motion is detected in an arbitrary video as described above occurs (step 204), and an event occurs as a result of the check here (optional). In response to the occurrence of the recording operation signal or the detection of the motion), the screen dividing means 108 divides each image transmitted from each of the surveillance cameras 104/1 to 104/3 and reconstructs it into one multi-screen. For example, when an image is transmitted from three surveillance cameras 104/1-104/3, as shown in FIG. 4 as an example, multiple screens divided into three screens 402, 404, and 406 are shown. In the divided screen where an event occurs when reconfiguring into multiple screens, alarm color index information (for example, red index information) is inserted into the VBI, and an event does not occur. Split screen is reconstructed by inserting the general color index information (for example, green index information) to the VBI (step 206). In this way, the multi-screen data inserted in the form of the mixed color index information and the general color index information are transmitted to the recording / reproducing means 110 through the line L15 for storage (recording).

For example, assuming that an event generation signal means to set an image captured by the surveillance camera 104/1 through line L11 to alarm recording, the screen dividing means 108 monitors the surveillance camera 104 /. The VBI index information inserted between the frame and the frame transmitted from 1) is set to red (ie, alarm color index information) and recorded, and transmitted from the other two surveillance cameras 104/2 and 104/3. The multi-screen is reconstructed from three images by recording the VBI index information of the image to green (ie, general color index information).

As a result of the check in the step 204, if it is determined that the event has not occurred (the generation of the selective recording operation signal or the motion detection), the screen dividing means 108 responds to each of the surveillance cameras 104/1-104 /. Each image transmitted from 3) is divided and reconstructed into one multiple screen (step 208), where green (i.e., general color index information) is recorded as VBI index information in each divided screen in the reconstructed multiple screen.

Subsequently, the VBI of the multi-screen or all divided screens recorded in a form in which alert color index information (red) and general color index information (green) are mixed through the above-described process as VBI is recorded as general color index information. Multiple screens are recorded on the storage medium in the recording / reproducing means 110 (step 210).

Therefore, the present invention executes the recording mode through the series of processes described above to record the multiple screens on the storage medium.

Next, in step 212, it is checked whether or not the user has commanded a playback operation (playback switch operation). If it is determined that the playback operation has been performed as a result of the check, the recording / playback means 110 recorded multiple recordings on the storage medium. By reading the screen data and passing it to the monitor 112, multiple screens are displayed on the monitor 112.

That is, when the general color index information is inserted in all the divided screens, a green display (normal recorded image) such as a bar shape (transparent or semi-transparent bar) and an OSD (transparent or translucent OSD) is displayed on each divided screen in the multi screen. In the case where the general color index information and the alarm color index information are mixed in the split screen, green (normal recording video) such as bar shape (transparent or semi-transparent bar shape), OSD (transparent or translucent OSD) on the split screen, or A red (alarm recording video) indication is displayed (step 214).

Therefore, the user can see the bar shape or OSD color displayed on each split screen of the multi-screen, and whether the split screen is an alarm recording image by event occurrence (ie motion detection, user's selective recording) or an event is generated. It is possible to easily recognize whether or not the normal recorded video, that is, in real time without performing a separate playback operation, it is possible to observe the careful attention to the surveillance area.

Meanwhile, the method for controlling a security recording system according to the present invention may selectively extract and play only the alarm recording image due to an event occurrence (that is, motion detection and selective recording of a user). In operation, the recording / reproducing means 110 extracts only the divided screens (alarm recording images) in which the alarm color index information is inserted from the multiple screens read from the storage medium, and edits the extracted alarm recording images to monitor ( By outputting 112), alarm recording images are selectively displayed.

3 is a flowchart illustrating a process of recording and reproducing by a security recording system according to another exemplary embodiment of the present invention.

Referring to FIG. 3, when the security recording system is powered on to execute the recording mode, the image captured from each camera 104/1 to 104/3 is reconstructed into multiple screens through the screen dividing means 108. It is transferred to the recording / reproducing means 110 via the line L15, thereby recording on the storage medium (not shown) (step 302).

While executing such a recording mode, the recording / reproducing means 110 checks whether or not the selective recording operation signal according to the user's operation is input from the operation means 102, and as a result of the check, the selective recording operation signal is inputted. In response, the recording / reproducing means 110 generates an event generation signal corresponding thereto and provides it to the screen dividing means 108 through the line L11.

In addition, the motion detection unit 106 detects motion for each image transmitted from each camera 104/1-104/3, and stores a previous image on the time axis, for example, and compares the previous image with the current image. Motion is detected through a method of comparing a later image, and when a motion is detected in an arbitrary image, a motion detection signal is generated and transmitted to the screen division means 108 through a line L13.

At this time, the motion detection is not a method of detecting motion in the image captured by the cameras 104/1 to 104/3 as described above, for example, motion detection for each specific location where each surveillance camera is installed. It is also possible to provide sensors and to detect movement based on detection signals from these sensors.

That is, the security recording system checks whether an event for which an optional operation signal is input or a motion is detected in an arbitrary image occurs as described above (step 304). In response to the occurrence of the recording operation signal or the detection of the motion), the screen dividing means 108 divides each image transmitted from each of the surveillance cameras 104/1 to 104/3 and reconstructs it into one multi-screen. That is, unlike the above-described embodiment in which the alert color index information and the general color index information are inserted as the VBI, the alert classification index information (index information inserted into the split screen where the event occurs) and the general classification index information as the VBI Selectively inserts (index information inserted into the split screen where no event has occurred) to reconfigure it into multiple screens (step 30 6) In this way, the multi-screen data inserted in the form in which the alarm classification index information and the general division index information are mixed are transmitted to the recording / reproducing means 110 through the line L15 for storage (recording).

For example, assuming that an event generation signal means to set an image captured by the surveillance camera 104/1 through line L11 to alarm recording, the screen dividing means 108 monitors the surveillance camera 104 /. 1) Record and record the VBI index information inserted between the frames transmitted from the image and the frames as alarm classification index information, and record the VBI index information of the images transmitted from the other two surveillance cameras 104/2 and 104/3. The multi-screen is reconstructed from three images in a manner of recording by setting the general index information.

If it is determined that the event has not occurred (the generation of the selective recording operation signal or the movement detection) as a result of the check in the step 304, the screen dividing means 108 responds to each of the surveillance cameras 104/1-104 /. Each image transmitted from 3) is divided and reconstructed into one multiple screen (step 308). In this case, general divided index information is recorded as VBI index information in each divided screen in the reconstructed multiple screen.

Subsequently, through the above-described process as the VBI, the multi-screen recorded in the form in which the alert classification index information and the general division index information are mixed or the multi-screen in which the VBI of all the split screens are recorded as the general division index information are recorded / playback means. Recording is made to the storage medium in 110 (step 310).

Therefore, the present invention executes the recording mode through the series of processes described above to record the multiple screens on the storage medium.

Next, in step 312, it is checked whether the user has commanded a playback operation (playback switch operation). If it is determined that the playback operation has been performed as a result of the check, the recording / reproducing means 110 records multiple images recorded on the storage medium. Read the screen data, and detect the index information inserted in each split screen in the multi-screen as read (step 314), and when the detected index information is alarm distinguishing index information, a red transparent or semi-transparent bar form or OSD (Alarm color index information), etc., are inserted into the corresponding split screen (step 316), and when the detected index information is general division index information, a green transparent or semi-transparent bar shape or OSD (general color index information) is applied. By inserting into the split screen (step 318), the multi-screen is displayed on the monitor 112 by converting it to the multi-screen and transferring it to the monitor 112.

That is, when the general index information is inserted in all the split screens, a green display (normal recording image) such as a bar shape (transparent or translucent bar) or OSD (transparent or translucent OSD) is displayed on each split screen in the multi-screen. When the general segment index information and the alarm segment index information are mixed on the split screen, a green (normal recorded video) or red (alarm recorded video) display such as a bar shape or an OSD is displayed on the split screen (step 320). .

Therefore, the user can see the bar shape or OSD color displayed on each split screen of the multi-screen, and whether the split screen is an alarm recording image by event occurrence (ie motion detection, user's selective recording) or an event is generated. It is possible to easily recognize whether or not the normal recorded video, that is, in real time without performing a separate playback operation, it is possible to observe the careful attention to the surveillance area.

On the other hand, the security recording system control method of the present invention, like in the above-described embodiment, it is also possible to selectively extract and play only the alarm recording video by the occurrence of the event (that is, motion detection, selective recording of the user), When the user operates the selective playback of the alarm recording image, the recording / playback means 110 extracts only the split screens (alarm recording images) in which the alarm classification index information is inserted from the multiple screens read from the storage medium, and the alarm classification index. After the information is converted into the color index information for alarm, the extracted alarm recording images are edited and output to the monitor 112, thereby selectively displaying the alarm recording images.

As described above, according to the present invention, the surveillance video captured by the plurality of surveillance cameras is divided into reconstructed and reconstructed into one multi-screen without recording a normal recording video and an alarm recording video of an event occurrence. Unlike in the related art, when recording a multi-screen by dividing and reconstructing each image captured by a plurality of surveillance cameras into n screens, a general recorded video portion and an alarm recorded video portion according to an event occurrence can be distinguished. Displayed and recorded using VBI and displayed so that normal recorded video and alarm recorded video can be visually distinguished according to the division mark during playback, so that multiple screens displayed through the monitor are part of normal recorded video or alarm recorded video. It's easy for the user to visually (or color) It is possible to prevent the frequent and cumbersome operation of the recording system for finding or searching the alarm recording image.

1 is a block diagram of a recording system for security according to an embodiment of the present invention,

2 is a flowchart illustrating a process of recording and playing by a security recording system according to an embodiment of the present invention;

3 is a flowchart illustrating a process of recording and playing by a security recording system according to another embodiment of the present invention;

4 is a diagram illustrating an example of three screens divided into three according to the present invention;

5 is a block diagram of a conventional recording system for security.

<Description of the code | symbol about the principal part of drawing>

102: operation means 104: imaging means

104/1-104/3: Surveillance camera 106: Motion detection means

108: screen division means 110: recording / playback means

112: monitor

Claims (5)

In the security recording system for dividing and reconstructing each image respectively taken by a plurality of surveillance cameras respectively installed in a certain specific place to record in one multi-screen consisting of a plurality of split screens and to reproduce them, Means for generating a selective recording operation signal in accordance with a user operation; Means for detecting motion at each specific location and generating a motion detection signal; In response to the selective recording operation signal or the motion detection signal, alarm color index information is inserted into the corresponding divided screen, and general color index information is inserted into the other divided screen as VBI, respectively. Means for dividing and reconstructing an image into the multiple screens; Recording / reproducing means for recording the multi-screen reconstructed on the storage medium and reproducing the recorded multi-screen in response to the reproduction operation; And And a means for displaying each of the divided screens in the reproduced multiple screens in a form including the alarm color index information representing the alarm recording image or the general color index information representing the normal recording image. The security of claim 1, wherein the motion detection is performed by comparing images on a time axis of the captured images provided from the surveillance cameras, or by using a plurality of motion detection sensors respectively installed at each specific location. Recording system. In the control method of the security recording system for dividing and reconstructing each image taken by each of the plurality of surveillance cameras respectively installed in a certain specific location to record in one multi-screen consisting of a plurality of divided screens and to reproduce them, Detecting the occurrence of an event while executing a recording mode for recording images captured by the plurality of surveillance cameras on a storage medium; By inserting the color index information for the alarm to the VBI to the corresponding divided screen, the event occurrence is detected, and inserting the general color index information into the VBI to the corresponding divided screen without the occurrence of the event, the image from the respective cameras Dividing and reconfiguring into multiple screens; Recording the reconstructed multi-screen on the storage medium; Checking whether a playback operation of the multi-screen recorded on the storage medium is selected; And And when the reproduction operation is selected, displaying each of the divided screens in the reproduced multi-screen in the form of the color index information indicating the alarm recording image or the general color index information indicating the normal recording image. Control method of security recording system. The security of claim 3, wherein the occurrence of the event is detected through a comparison of images on a time axis of the captured images provided from the surveillance cameras, or by a plurality of motion detection sensors respectively installed at each specific location. Control method of the recording system. The method of claim 3 or 4, wherein the control method comprises: Checking whether to selectively reproduce only the alarm recording image; Detecting, when the selective reproduction operation is selected, alert color index information inserted in each divided screen in the multiple screen read out from the storage medium; Editing the divided screens in which the alarm color index information is detected and editing the multi-screens of the alarm recording image; And And controlling displaying the edited multi-screen.