KR20040016591A - System for controlling remote camera in digital video recorder - Google Patents

Abstract

PURPOSE: A remote control system of monitoring cameras is provided to monitor and control a master/slave DVR server in real time by connecting plural DVR servers in a mater/slave method by using network video cables and Ethernet. CONSTITUTION: A plurality of slave DVR(Digital Video Recorder) servers(30) search or control a plurality of monitoring cameras(1), store images inputted from the monitoring cameras as digital data, and transmit the stored images. A master DVR server(10) is connected with the plurality of slave DVR servers for transmitting a control command to each slave server, receiving and transmitting response data of each slave server, and controlling the plurality of monitoring cameras. A client(70) is connected with the master DVR server for requesting to remotely monitor the images transmitted from the master DVR server and the slave DVR servers, and to control or search the monitoring cameras.

Description

Remote control system of surveillance cameras {SYSTEM FOR CONTROLLING REMOTE CAMERA IN DIGITAL VIDEO RECORDER}

The present invention relates to a control system of a surveillance camera, and in particular, a plurality of DVR servers connected to a plurality of surveillance cameras (DVR Server) respectively connected in a mast / slave manner, each of the master control server connected to the master server And it is possible to remotely monitor, control and search the slave DVR server in real time, and to a remote control system of a surveillance camera that can search in real time the surveillance camera connected to any server.

In general, a large number of surveillance cameras are installed in a security store such as a merchandise display store, a financial institution, or another building such as a department store or a discount distributor.

The surveillance camera is installed on the ceiling or wall of the room to monitor a certain range of the lower part, and in such a surveillance camera, the camera is continuously rotated by a predetermined angle in a horizontal direction so as to secure a surveillance image. Pan function to expand the range in left and right directions, tilt function to expand the viewing angle in the vertical direction by moving the camera up and down, and to enlarge a specific part of the surveillance image. The zoom function allows the user to monitor the desired area.

Such a surveillance camera is connected to a server called a digital video recorder (DVR). The DV server is used to replace an analog system (CCTV) used as a conventional surveillance system. It is a system that can convert images into digital data and save them to disk.

The DVR system generally connects a plurality of cameras to a computer to simultaneously monitor and perform various control functions such as video storage, transmission, and alarm of the camera. Then, if necessary, the recorded and stored video can be transmitted to a remote site to view an image to be monitored at a remote location.

A plurality of DVR servers may be connected and integratedly managed by a client. In the related art, when a plurality of DVR servers are interconnected, each DVR server is integrated and managed based on a TCP / IP network, and each DV server IP address is assigned to each client and remote monitoring, search, and control is performed for each server.

For this reason, conventionally, when a client monitors an image of a camera connected to each DVR server, in order to check the camera image of another DVR server, the integrated management is based on a TCP / IP network. It is necessary to terminate the connection of the DVR server and connect to the DVR server to be monitored. As a result, it takes a certain time to connect each DVR server and the TCP / IP transmission and reception speed There were many limitations in displaying the screen to be monitored in real time. Therefore, in the related art, it is not possible to search and control each DVR server in real time, which causes some problems in security monitoring.

Accordingly, an object of the present invention is to connect a plurality of DVR servers each connected to a plurality of surveillance cameras in a mast / slave manner using a network video cable and Ethernet, so that the client for controlling the camera connected to the master DVR server The present invention provides a remote control system of a surveillance camera that can remotely monitor, control and search a master and slave DVR server so that a surveillance camera connected to any server can be searched in real time.

1 is a view showing a video input and output control system using a TV according to the present invention,

2 is a circuit block diagram showing a master TV server according to the present invention;

3 is a flowchart showing an operation process according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: surveillance camera 10: master DVR server

11: monitor 12: camera interface

13,14: video input / output section 15: multi-select section

16: Video decoder 17: Selection controller

18: Ethernet card 19: Main control unit

20: Video Graphics Module 30: Slave DVR Server

70: client

Technical means of the present invention for achieving the above object, in the surveillance system for retrieving and controlling a plurality of surveillance cameras connected to the DVR or storing the image input from the surveillance camera as digital data and transmitting to the client: A plurality of slave servers for retrieving and controlling the surveillance camera or storing and transmitting the image input from the surveillance camera as digital data; A master server connected to the plurality of slave servers to transmit and receive control commands or response data of each slave server, and to control a plurality of connected surveillance cameras; And a client connected to the master server to remotely monitor an image transmitted from the master and slave servers through the master server or to control and search for the surveillance cameras connected to the master and each slave server.

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

1 is a view illustrating a video input / output control system using a dial according to the present invention, wherein a master dial server 10 (hereinafter, also referred to as a master server) and a slave dial server 30 (hereinafter, referred to as a “slave server”) are illustrated. And client 70).

The master server 10 is connected to a plurality of slave servers 30 to transmit control commands to each slave server 30 or to transmit and receive response data of each slave server 30, and a plurality of connected devices. It consists of a digital video recorder (DVR) to search and control the surveillance cameras (1-1 to 1-16), the plurality of slave servers 30 in accordance with the command transmitted through the master server 10 corresponding surveillance cameras. Search and control (1-17 ~ 1-1008) respectively, or save the video input from surveillance cameras (1-17 ~ 1-32, ..., 1-993 ~ 1-1008) as digital data and master Consists of a digital video recorder to transmit to the server 10, the client 70 is connected to the master server 10, the remote monitoring or master video transmitted from the master and slave server 30 through the master server 10 And a replica connected to each slave server 30. A plurality of input control devices 71-1 to 71-4 and monitors 75-1 to 75-4 requesting control and retrieval of a number of surveillance cameras.

In addition, the plurality of slave servers 30 are connected to each other by a network video cable 60, and images captured by the surveillance cameras 1-17 to 1-32, ..., 1-993 to 1- 1008. Is transmitted to the master server 10 through the network video cable 60, and the plurality of slave servers 30 are interconnected by Ethernet (50) and transmitted from the client 70 through the master server 10 It is configured to operate according to the remote search and control command of the surveillance camera.

In addition, the master and each slave server (10, 30) is provided with a plurality of monitors (11, 40-1, 40-2, ..., 40-62), the plurality of surveillance cameras (1-1 to 1) -16, ..., 1-993 to 1-1-1008 are displayed in real time through a screen divided into n (number of surveillance cameras connected).

In the above, approximately 16 surveillance cameras can be connected to one DVR server 10, 30-1, ..., 30-62, and 62 slave servers 30-1 to one master server 10. 30-62 can be connected to the client 70 for remote control of a total of 1008 surveillance cameras (1-17 to 1-32, ..., 1-993 to 1- 1008).

In addition, a client 70 is connected to the master server 10, and the client 70 communicates with the DVR servers 10 and 30 and a plurality of inputs for controlling the camera to view a desired image from a remote location. The control apparatuses 71-1 to 71-4 and the corresponding analog monitors 75-1 to 75-4 are connected to the input control apparatus, respectively, so that the images monitored by the DVR servers 10 and 30 can be viewed. You can choose to view it.

In addition, each DVR server 10, 30 is connected to the Ethernet 50 and the network video cable 60, the network video cable 60, the image obtained from the slave server 30 is the master server 10 Is transmitted to the client 70, and the Ethernet 50 transmits a remote control signal and a search signal from the client 70 to each of the DVR servers 10 and 30.

That is, the master server 10 transmits and receives a control command to each slave server 30 or response data from each slave server 30 through the Ethernet 50, and the image obtained from each server is Received via the network video cable (60).

Therefore, in the present invention, a plurality of slave servers 30 can be connected to a single master server 10, and remote monitoring, searching, and control of the plurality of servers can be performed in real time, and in the master server 10 Four analog monitors 75-1 to 75-4, which are clients 70, can output video signals, and each analog monitor 75-1 to 75-4 controls 1008 cameras in real time. Can be monitored on the screen.

In addition, the four analog monitors can be connected to the same or different cameras at the same time and can be multi-searched. In particular, the camera video of any server can be searched in real time.

In addition, the master server 10 is configured as shown in the block diagram of FIG.

The master server 10 is connected to a plurality of surveillance cameras (1-1 to 1-16), the interface 12 for receiving image data output from the surveillance camera or outputting the operation control signal of the surveillance camera, and A video input unit 13 connected to a plurality of slave servers 30 to receive a video signal output from each slave server 30 and a video signal input through the video input unit 13 according to a predetermined selection signal. The video output unit 14 that is provided and outputs to the client 70, and the multiple output to determine the output signal according to the selection signal of the client 70 of the video signal input through the interface 12 or the video input unit 13 A selector 15, a video decoder 16 for decoding an image of the surveillance camera output through the interface 12 and the multi-selector 15, and each video multiplexer of the multi-selector 15 ( MUX) to control Selection control unit 17 for controlling the output of the desired video signal through the middle of the selection unit 15, the remote control of the camera connected from the plurality of slave servers 30 and the Ethernet 50 transmitted from the client 70 Ethernet card 18 which transmits a signal to each slave server 30 through Ethernet 50, and control the selection controller 17 to transmit the video signal of the desired surveillance camera to the client 70, Ethernet card A main control unit 19 for instructing the search and control of the specific slave server 30 through 18 and a video graphic module for graphicly processing and displaying a plurality of video signals input through the interface 12 ( 20).

The operation of the present invention configured as described above will be described with reference to the flowchart of FIG. 3.

First, the numbers of the cameras 1-1 to 1-008 assigned to each V server 10 and 30 are sequentially assigned to each of the DB servers 10 and 30 and the client 70, respectively. Release.

Thereafter, the number of the camera 1 to be monitored or searched by the input control device 71 of the client 70 and the number of the monitor 75 of the client 70 to output the surveillance image are input (S1).

Subsequently, the input control apparatus 71 determines whether the input data is valid information, and if the input data is valid information, determines whether the input data is a camera number (S2, S3).

In the case where the input data is a camera number, it is determined whether the number of the monitor 75 is defined, and if it is defined, it is determined which monitor 75 of the client 70 and which DVD server 10 or 30 is determined. It is determined whether or not the camera is (S4 to S6).

According to the determination, the master server 10 transmits a control signal to the cameras of the DVR servers 10 and 30 through the Ethernet 50, and also through the selection controller 17 of the corresponding multi-selector 15. The multiplexer MUX is selected (S7).

Subsequently, the surveillance image obtained from the camera of the DVR server 10 or 30 is transmitted to the master server 10 through the network video cable 60, and the video input unit 13 and the multiplexer of the master server 10 are connected. And the video output unit 14 to the client 70 (S8 to S9). Subsequently, the client 70 outputs a monitoring screen to a predetermined analog monitor 75 (S10).

That is, the client 70 controls the surveillance cameras connected to the DVR servers 10 and 30 through the Ethernet 50. At this time, the on / off control, pan / tilt adjustment, mode setting, or Send command data such as video data search and video transmission.

According to the command of the client 70, the DVR servers 10 and 30 control the operation of each camera, and when there is a command of image transmission to the client 70, the video obtained by the camera is connected to the network video cable. The image data is transmitted to the client 70 through 60.

Therefore, if only the camera number of the DVR server 10, 30 is inputted, the situation of the remote site can be easily checked without a separate connection process.

While specific embodiments of the present invention have been described and illustrated above, it will be apparent that the present invention may be embodied in various modifications by those skilled in the art. Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, but should fall within the claims appended to the present invention.

Accordingly, in the present invention, by connecting a plurality of DVR servers each connected to a plurality of surveillance cameras in a mast / slave manner using a network video cable and an Ethernet, a master and a client for controlling a camera connected to the master DVR server are connected. It is possible to monitor, control and search the slave DVR server in real time, so it is possible to search the surveillance camera connected to any server in real time.

Claims (4)

In a surveillance system that searches and controls a plurality of surveillance cameras connected to a DVR, stores images input from the surveillance camera as digital data, and transmits them to a client: A plurality of slave servers for searching and controlling a plurality of surveillance cameras or storing and transmitting images input from the surveillance camera as digital data; A master server connected to the plurality of slave servers to transmit and receive control commands or response data of each slave server, and to control a plurality of connected surveillance cameras; And Client connected to the master server to remotely monitor the image transmitted from the master and slave server through the master server or to request the control and search of the surveillance camera connected to the master and each slave server; Remote control system. The method according to claim 1, The plurality of slave servers, A remote control system of a surveillance camera, which is connected to each other by a network video cable and configured to transmit an image captured by the surveillance camera to a client through a master server. The method according to claim 1, The plurality of slave servers, The remote control system of the surveillance camera, characterized in that configured to receive a remote search and control of the surveillance camera through the master server from the client interconnected by Ethernet. The method according to claim 1, The master server, An interface unit connected to a plurality of surveillance cameras to receive image data output from the surveillance camera or to output an operation control signal of the surveillance camera; A video input unit connected to the plurality of slave servers to receive an image signal output from each slave server; A video output unit which receives an image signal input through the video input unit according to a predetermined selection signal and outputs the same to a client; A multiple selection unit which determines an output signal according to a selection signal of a client among image signals input through the interface or video input unit; A video decoder for decoding an image of the surveillance camera output through the interface and the multi-selector; A selection control unit controlling each video multiplexer of the multiple selection unit to output a desired video signal through the multiple selection unit; An Ethernet card connected to the plurality of slave servers via Ethernet to transmit a remote control signal of a camera to each slave server; A main control unit controlling the selection control unit to transmit an image signal of a desired surveillance camera to a client, and commanding search and control of a specific slave server through an Ethernet card; And And a video graphic module for processing a video signal input through the interface into a video signal and displaying the video signal on a monitor.