KR101085862B1 - Method for monitoring an image in digital video recorder - Google Patents

Abstract

The present invention integrates and manages a plurality of digital video surveillance apparatuses (DVRs) distributed in various regions (or places) through a network, thereby integrating and monitoring images of other DVRs remotely through their own DVRs. An integrated monitoring method of a digital video surveillance apparatus comprising: a first step of connecting each of a plurality of digital video surveillance apparatuses to another surveillance apparatus through a network; A second step of receiving and storing management information including information on a surveillance camera for signal connection from another surveillance apparatus through the network; A third step of generating and displaying integrated management information from the management information of the received and stored other monitoring apparatus and previously stored management information thereof; A fourth step of receiving a captured image of the surveillance camera selected through the integrated management information through the network; And a fifth step of constructing and outputting one integrated surveillance screen including the received captured image, and integratedly monitoring, searching, and backing up to the captured image of another remote DVR through its own DVR. It is convenient and there is no need to install a remote operating device for each of several DVRs, so it is a very efficient invention that does not increase the cost of the integrated management operation.

DVR, Integrated Surveillance, Surveillance Camera, Local Server, Remote Server

Description

Integrated monitoring method of digital video surveillance device {Method for monitoring an image in digital video recorder}             

1 shows a network configuration of a general surveillance DVR (Digital Video Recorder),

2 is a diagram illustrating a network configuration of a surveillance DVR to which an integrated surveillance method according to the present invention is applied;

FIG. 3 illustrates a detailed configuration of each DVR of FIG. 2.

Figure 4 shows the operational flow of a preferred embodiment of the integrated monitoring method of the digital video surveillance apparatus according to the present invention,

5 illustrates an example of integrated management information according to the present invention.

6 shows an example of the integrated monitoring screen according to the present invention.

[Description of Drawings]

10, 100; Surveillance Cameras 20 and 200: Surveillance DVR

30: network 40: personal computer

201: A / D converter 202: DSP                 

203: storage unit 204: control unit

205: key input unit 206: memory

207: network interface unit 300: LAN

According to the present invention, a plurality of Digital Video Surveillance Devices (DVRs) distributed in various regions (or places) are integrated and managed through a network, thereby integrating and monitoring images of other DVRs remotely through their DVRs. The present invention relates to an integrated surveillance method of a digital video surveillance apparatus.

As a kind of digital video surveillance device, a surveillance digital video recorder (DVR) that can monitor multiple places simultaneously has been developed and commercialized.

In general, the DVR is a high-resolution security solution system capable of long-term recording, rapid search and clear playback of the surveillance image by converting the captured image of the plurality of surveillance camera signal connected to a digital signal and compressed.

In addition, recently, the network and communication functions are supported so that DVRs can be installed remotely and monitored and managed remotely. Such surveillance DVRs are increasing in demand in financial institutions and airports that require a high level of security. .

1 illustrates a network configuration of a general surveillance DVR 20, wherein the DVR 20 includes a plurality of surveillance cameras CAM 1, CAM 2,. In addition to being connected to the (10), in addition, it can be connected to various peripheral devices.

In addition, the monitoring DVR 20 may be connected to an operating device such as a personal computer 40 of a system operator located at a remote location through a network 30, in which case the DVR 20 is connected to the DVR 20. If it is determined that theft or intrusion of a third party is detected from the captured image of the surveillance camera 10, the personal computer 40 may be notified of the fact, and the captured image may be notified to the personal computer through the network 30. 40 to allow the operator of the personal computer 40 to directly determine theft or intrusion of a third party from the captured image.

However, in the related art, a digital video recorder (DVR) is not only integratedly managed and operated by interlocking with other DVRs through a network, but is managed solely and is inefficient. Operators could not use convenient functions such as monitoring, searching, and backing up recorded video of DVRs installed in other regions.

In addition, since a remote operating device is required for one DVR, there is a problem of an increase in management operation cost.

Therefore, the present invention was created in order to solve the above problems, by integrating and managing a plurality of digital video surveillance apparatuses (DVR) distributed in various regions (or places) through a network to manage their own DVR The purpose of the present invention is to provide an integrated surveillance method of a digital video surveillance device that can monitor, search, and back up the recorded video of another DVR remotely.

In the integrated monitoring method of the digital video surveillance apparatus according to the present invention for achieving the above object, in a state in which a plurality of digital video surveillance apparatus, each of which is connected to one or more surveillance cameras are distributed in different positions, A first step of connecting each digital video surveillance apparatus to another surveillance apparatus through a network; A second step of receiving and storing management information including information on the surveillance camera that is connected to the signal from another surveillance apparatus through the network; A third step of generating and displaying integrated management information from the management information of the received and stored other monitoring apparatus and previously stored management information thereof; A fourth step of receiving a captured image of the surveillance camera selected through the integrated management information through the network; And a fifth step of constructing and outputting one integrated surveillance screen including the received captured image.

Hereinafter, a preferred embodiment of the integrated monitoring method of the digital video surveillance apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows the overall network configuration of the surveillance digital video recorder (DVR) to which the integrated surveillance method of the digital video surveillance apparatus according to the present invention is applied.

As shown in Figure 2, in the present invention, a plurality of DVRs for monitoring (DVR 1, DVR 2, DVR 3, ..., DVR n) (200) are distributed and installed in each of several areas or places where monitoring is required, for example. If the surveillance DVR is installed in a bank, DVR 1 may be distributed in each branch of the bank, such as a Junggok branch, DVR 2, a relay point, and DVR 3 a poi point.

Each of the distributed DVRs regards itself as a local server, and another DVR registered in each local server, that is, connected to each local server through a communication network such as LAN 300, is remote. Think of it as a server.

For example, from the standpoint of DVR 1, it is regarded as a remote server for a number of other DVRs (DVR 2, DVR 3, ..., DVR n) which are installed in the DVR 1 and are respectively installed in remote locations. .

One or more surveillance cameras (CAM 1, CAM 2, CAM 3, ..., CAM n) are connected to each of the DVRs.

In addition, the memory of each DVR stores management information and registration information of its own (local server), and registration information of another registered DVR (remote server). Identification information and installation area (or location), and information about the signal connection camera (installation location and identification information of each camera (for example, camera number), etc.) may be included. It may include address information (account) on its own network, an ID and password (Password) of the operator, and the registered information of the remote server stored in each local server may include identification information of each registered remote server and Address information (account) may be included.

3 illustrates a detailed configuration of each of the DVRs 200, and digitally converts photographed images input from a plurality of surveillance cameras (CAM 1, CAM 2, CAM 3, ..., CAM n) 100. A / D converter 201; A digital signal processor (DSP) 202 which performs signal processing such as compressing to store the digital image converted by the A / D converter 201 or decompressing to reproduce the compressed and stored video signal; A storage unit 203, such as a hard disk or an optical disk, for storing the compressed video signal; A key input unit 205 for receiving a user command; A memory 206 for storing a program necessary for operation of the DVR, its own management information and registration information, and registration information and management information for each registered remote DVR; A network interface unit 207 for supporting communication with another DVR at a remote location; And a control unit 204 for controlling operations of the components and transmitting / receiving data through the network interface unit 207, and further comprising a monitor for displaying a surveillance image and other menu screens. May be included.

Meanwhile, in the present invention, the DVR 200 may be connected to an operating device such as a personal computer of a system operator located at a remote location through the LAN 300 or another communication network. The remote operating device may be configured only for any one DVR, or in some cases, the remote operating device may be configured for each of the DVRs 200.

4 is a flowchart illustrating a preferred embodiment of the integrated monitoring method of the digital video surveillance apparatus according to the present invention. Hereinafter, the integrated monitoring method of FIG. 4 according to the present invention will be described with reference to the configuration of FIGS. 2 and 3. This will be described in detail.

First, DVRs are distributed in various regions (or locations) by a system operator, and each of the distributed DVRs has several surveillance cameras (CAM 1, CAM 2, CAM 3, .., CAM n) (100). ) Is connected to the signal, and the registration information and management information of the DVR are previously stored by the system operator in the memory 206 of each DVR.

In this state, the operation of the DVR is as follows.

First, the A / D converter 201 digitally converts and outputs a captured image input from the surveillance camera 100, and the DSP 202 compresses and signals to store the digitally converted image. The storage unit 203 stores the compressed and signal-processed digital image, wherein the storage unit 203 is a storage space partitioned by the monitoring camera under the control of the control unit 204. The camera identification information (for example, the camera number) may be stored together with the camera.

In this case, if there are several surveillance cameras connected to the DVR, the controller 204 may select a captured image in a time division manner and store the captured image in the storage unit 203 as described above.

In order to efficiently use the storage unit 203 having a limited storage capacity, the control unit 204 monitors a change amount of the captured image and when the change amount of the video signal exceeds a preset reference change amount. Only, the image may be stored in the storage unit 203.

Meanwhile, an operator of the DVR may select a plurality of camera images to be displayed on the monitor according to the selection of the camera through the key input unit 205, in which case the DSP 202 controls the control unit 204. Below, the plurality of selected camera images are configured as one screen and displayed on the monitor.

On the other hand, when the operator of each local DVR requests the connection with the pre-registered remote DVR through the key input unit 205, the control unit 204 from the registration information for the corresponding remote DVR stored in the memory 206 Reads the address information and transmits it through the network interface unit 207 to request a connection connection to each of the remote DVRs through the LAN 300. A server to server connection is established between the DVR and each remote DVR (S10). At this time, each DVR is regarded as a local server and another DVR connected through the LAN 300 is regarded as a remote server.

When the server-to-server connection is established between the DVRs as described above, the controller 204 of each remote DVR receives its own management information stored in the memory 206 in response to a request of the local DVR. The server-to-server connection is transmitted to the local DVR. In this way, the memory 206 of each DVR includes management information about the remote DVR, that is, DVR identification information and installation area (or location), and Information about the signal connection cameras (installation location and identification information of each camera (for example, camera number), etc.) is further stored (S11).

The control unit 204 integrates the DVR of the tree structure illustrated in FIG. 5 from management information of local and remote DVRs stored in the memory 206 automatically or at the request of an operator through the key input unit 205. The management information is generated and provided through a display device such as a monitor (S12). The integrated management information illustrated in FIG. 5 is integrated management information displayed on the monitor of the DVR 1.

Through the integrated management information, the operator of each DVR can check the management operation status of all the DVRs connected through the LAN 300, from which the operator can select a plurality of cameras to be integrated monitoring (S20), For example, the operator of the DVR 1 may select the camera 3 of the DVR 1 as the local server, the camera 2 of the DVR 2 as the remote server, the camera 5 of the DVR 3, and the camera 4 of the DVR 6 through the key input unit 205.

According to the camera selection, the controller 204 of the DVR 1 selects the captured image of the camera 3 with respect to its DVR (DVR 1), and the other remote DVRs (DVR 2, DVR 3, DVR 6). Regarding the selected cameras, the identification information of each selected camera is transmitted to the corresponding remote DVR in the connected connection state through the network interface unit 207 to request the captured image of the selected camera (S21).

Therefore, the control unit 204 of the remote DVR selects the captured image of the camera from the received camera identification information and transmits it to the DVR 1 through the network interface unit 207, where the captured image is selected by the operator. Accordingly, the image may be a real-time photographed image of the camera or a pre-stored image captured by the camera.

The DSP 202 of the DVR 1 processes the captured images of the plurality of selected cameras under the control of the controller 204, and then configures one integrated monitoring screen as shown in FIG. By displaying (S22), the operator can monitor the captured images of the multiple cameras through one integrated monitoring screen.

In the above embodiment, when the plurality of cameras are selected, the operator may select how to display the images of the plurality of cameras selected through the key input unit 205 on the divided screen, in which case the DSP 202 Configures the captured images of the plurality of selected cameras as an integrated monitoring screen of a form selected by an operator and displays the output images on the monitor.

In addition, the operator can search and back up the recorded video of other DVRs connected through his or her DVR. In this case, the operator inputs his / her registered ID and password to prove the validity. desirable.

On the other hand, the selection of the surveillance camera through the integrated management information of the DVR and the integrated surveillance therefrom is made the same at the request of the automatic or the operator not only in DVR 1 but also other DVR, the surveillance camera for the integrated surveillance In the case of selecting, it is preferable to input the ID and password of the operator as described above so that the integrated monitoring can be performed only for the operator whose validity is verified.

In the above embodiment, the own management information stored in each local server is newly updated and stored when the number of cameras connected to the signal change, that is, each time the camera is added or removed, and stored in each local server. The registration information for the remote server is also refreshed every time a new remote server is added or removed.

In addition, in the present invention, since it is possible to monitor and backup the images of other DVRs through their own DVRs, as well as to search and backup the images, any DVR that is represented without installing an operating device such as a personal computer for each DVR. You can only install the operating system.

On the other hand, in each of the DVRs, if the amount of video change detected from the captured video exceeds a preset reference change amount, the DVR determines that theft or the invasion of a third party is the same, and stores the corresponding video along with the LAN 300 or other information. The operator may be notified to the operating device connected through a network, or the captured image may be transmitted to the operating device so that an operator may directly determine theft or intrusion of a third party from the captured image.

In the present invention, by limiting the number of remote servers that are connected to the local server at the same time, it is possible to ensure the stability of the server to server connection.

As mentioned above, preferred embodiments of the present invention described above are disclosed for the purpose of illustration, and those skilled in the art can improve other various embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. Changes, substitutions or additions will be possible.

In the integrated monitoring method of the digital video surveillance apparatus according to the present invention as described above, a plurality of digital video surveillance apparatus (DVR) distributed in various regions (or places) by interlocking and managing through the network, the own DVR It is convenient to monitor, search, and back up the recorded video of other DVRs through remote control, and it is very efficient to prevent the cost increase in the integrated management operation because there is no need to install the remote operation device for each of several DVRs. It is an invention.

Claims (7)

In a state where a plurality of digital video surveillance apparatuses, each of which is connected to one or more surveillance cameras, are distributed in different positions, A first step of connecting each of the digital video surveillance apparatuses to another surveillance apparatus through a network; A second step of receiving and storing management information including information on the surveillance camera that is connected to the signal from another surveillance apparatus through the network; A third step of generating and displaying integrated management information from the management information of the received and stored other monitoring apparatus and previously stored management information thereof; A fourth step of receiving a captured image of the surveillance camera selected through the integrated management information through the network; And And a fifth step of constructing and outputting one integrated monitoring screen including the received captured image. Each of the monitoring devices, the registered monitoring method of the digital video monitoring device, characterized in that pre-stored own registration information including the ID and password of the operator. delete The method of claim 1, And the management information further includes identification information and installation information of each of the monitoring devices. delete The method of claim 1, The fourth step and the fifth step are performed when the validity of the operator is verified through the input of the ID and password. delete The method of claim 1, The fifth step, the integrated monitoring method of the digital video surveillance apparatus, characterized in that for configuring the integrated monitoring screen in the form selected by the operator.

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