KR101000393B1 - Cctv system and control program therefor - Google Patents

Abstract

PURPOSE: A closed circuit television system and a control method thereof are provided to control a CCTV by plural local users. CONSTITUTION: A plurality of CCTV cameras takes images. A communication control unit transmits the images to a central server. A video signal is inputted through a video line to a matrix switcher(100). The central server(200) is connected to one or more local computer(300) through a communication network.

Description

Closed Circuit Television System and Control Program for the Same {CCTV SYSTEM AND CONTROL PROGRAM THEREFOR}

The present invention relates to a closed circuit television system and a control program therefor, and to a closed circuit television system and a control program for remotely controlling CCTV through a control program installed in a server and a personal computer.

In a closed-circuit television (CCTV) system that remotely monitors a large number of cameras in the prior art (patent registration No. 392727, which was filed by Korea CSE Co., Ltd. on July 14, 2003), a video matrix switcher is used. Received video signal of each camera by using and outputs video to general analog CCTV monitor. In such a conventional system, a separately connected matrix control panel (keyboard) is connected to the image matrix switcher to control the camera, and the image signal from the camera is transmitted to a separate image line and monitored by a monitor.

Figure 1 shows a schematic diagram of a CCTV system using a conventional general video matrix switcher. Video signals are input from multiple cameras (CA-1, ..., CA-n) to the matrix switcher located at the center, and the matrix switcher is connected to the monitor of the main station and the keyboard for monitoring and controlling each remote site. It can be seen that. In Fig. 1, a solid line signal line means a video signal line and a dashed line signal line means a data line for camera control.

As shown in FIG. 1, in the related art, IDs of many cameras installed at each site must be separately stored, and a desired camera is selected by a keyboard installed separately to display a screen and control the camera. This made the control of the camera and the whole system complex and the device complicated.

In addition, since data processing and storage of each camera screen is difficult, it is difficult to search later.

Therefore, the present invention was created to solve the above problems, by installing a control program for controlling the camera control and video display on the server connected to the CCTV by using a control program in the server to easily monitor the video of each camera and Control can be performed, local users can access the server through their terminal (i.e. personal computer) to control the CCTV, in this case, no need for separate line installation, free from the limitation of distance To provide a CCTV system and a control program for controlling the CCTV at the same time a large number of local users.

A plurality of CCTV cameras for taking an image according to the present invention; A matrix switcher for controlling the CCTV camera and transmitting at least one image of the image of the CCTV camera; Respectively connected to the matrix switcher, an image signal transmission line, and a data transmission line, receiving an image from the matrix switcher using the image signal transmission line, and providing a signal for controlling a CCTV camera to the matrix switcher using the data transmission line. A central server; And at least one local computer connected to the central server through a network, receiving a digitized image by the central server, and providing a control signal for controlling a CCTV camera. .

The central server includes a server control program for causing the matrix switcher to perform a function and generating data for driving and controlling a camera, and the local computer includes a local control program for generating data for controlling camera driving. And the server control program has a function of processing a signal transmitted from the local control program and providing it to the matrix switcher.

The server and local control program includes: a control data generation module for generating a command and camera control data for controlling the matrix switcher; A camera focusing module for allowing a user to adjust the focus of the camera; A camera focus control module for controlling the control data generating module by the camera focus adjusting module to generate data for camera focus control; A camera zoom selection module for allowing a user to select a camera zoom; A camera zoom control module configured to generate a camera zoom control data by controlling a control data generation module by the camera zoom selection module; A camera rotation selection module for allowing a user to select a camera pan and adjust a rotation speed; A camera rotation control module for controlling a control data generation module by the camera rotation selection module to generate data for camera rotation control and rotation speed adjustment; An automatic camera rotation selection module for allowing a user to set the automatic rotation of the camera; A camera autorotation control module configured to generate a camera autorotation data by controlling a control data generation module by the camera autorotation selection module; A camera automatic switching setting module for allowing a user to set automatic switching of each camera; A camera automatic switching control module configured to generate a camera automatic switching data by controlling a control data generation module by the camera automatic switching setting module; An adjustment / selection / setting data storage module for storing adjustment, selection, and setting data in the camera focus adjustment module, camera zoom selection module, camera rotation selection module, camera automatic rotation selection module, and camera automatic switching setting module; And a camera position memory module for storing positions of all cameras installed in the field.

The computer video matrix switcher may comprise a CPU; A communication control unit for exchanging data with a central server on which a control program is installed, receiving an operation command of the CPU and camera control data from the central server, and transmitting an execution result to the central server; A video signal input unit which receives a camera video signal transmitted from a plurality of cameras through a coaxial cable or the like; An image input signal switching unit which selects an input camera image signal under control of a CPU; And a composite signal output unit converting the image input signal into a composite signal for transmitting to a central server and outputting the composite signal to a video input terminal of a computer.

The matrix switcher and the central server are connected by a line transmitting an NTSC composite signal, and the central server and the local computer are connected by a network.

The network is characterized by using a network or a wireless communication network composed of at least one of a LAN cable, UTP, STP, FTP cable and CAT cable.

The central server may include a video input signal switching unit for selecting a video signal provided from the matrix switcher.

In addition, the present invention is a plurality of cameras to take a picture, to selectively transmit the images of the plurality of cameras, the mattress switcher for controlling the operation of the camera, and the coaxial cable is connected to the matrix switcher is provided with the image control camera control A central server for providing data for a local computer, comprising a local computer connected to the central server and receiving digitalized images and supplying control data, the central server and a closed circuit television system embedded in the local computer. A control program comprising: a control data generation module for generating a command for controlling the matrix switcher and camera control data; A camera focusing module for allowing a user to adjust the focus of the camera; A camera focus control module for controlling the control data generating module by the camera focus adjusting module to generate data for camera focus control; A camera zoom selection module for allowing a user to select a camera zoom; A camera zoom control module configured to generate a camera zoom control data by controlling a control data generation module by the camera zoom selection module; A camera rotation selection module for allowing a user to select a camera rotation and adjust a rotation speed; A camera rotation control module for controlling a control data generation module by the camera rotation selection module to generate data for camera rotation control and rotation speed adjustment; An automatic camera rotation selection module for allowing a user to set the automatic rotation of the camera; A camera autorotation control module configured to generate a camera autorotation data by controlling a control data generation module by the camera autorotation selection module; A camera automatic switching setting module for allowing a user to set automatic switching of each camera; A camera automatic switching control module configured to generate a camera automatic switching data by controlling a control data generation module by the camera automatic switching setting module; An adjustment / selection / setting data storage module for storing adjustment, selection, and setting data in the camera focus adjustment module, camera zoom selection module, camera rotation selection module, camera automatic rotation selection module, and camera automatic switching setting module; And a camera position memory module for storing positions of all cameras installed in the field.

The present invention also provides a computer recording medium containing a control program configured as in claim 8.

As described above, the present invention installs a control program for controlling camera control and video display on a server connected to CCTV, and can easily monitor and control video of each camera by using a control program in the server. CCTV can be controlled by accessing the server through its own terminal (ie personal computer). In this case, since the server and the local computer are connected to the network, there is no need for a separate line laying, it can be free from the limitation of the distance, and multiple local users can control the CCTV at the same time.

1 is a schematic diagram of a CCTV system using a conventional general video matrix switcher.
2 is a block diagram of a CCTV system of a computer remote monitoring control method according to an embodiment of the present invention.
3 is a block diagram illustrating a matrix switcher according to an embodiment of the present invention.
4 is a block diagram of a control program according to an embodiment of the present invention.
5 is a block diagram of a control program according to a modification to an embodiment of the present invention.
6 and 7 are views for explaining a modification of the system according to an embodiment of the present invention.

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

However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various forms, and only these embodiments are provided so that this disclosure will be thorough and complete the scope of the invention to those skilled in the art. It is provided for complete information. Like numbers refer to like elements in the figures.

2 is a block diagram of a CCTV system of a computer remote monitoring control method according to an embodiment of the present invention. 3 is a block diagram illustrating a matrix switcher according to an embodiment of the present invention.

2 and 3, the CCTV system of the computer remote monitoring control method according to the present embodiment is a plurality of CCTV cameras (10-1 to 10-n), computer video matrix switcher 100, the central server 200 And local computers 300.

Here, the video images captured by the plurality of CCTV cameras 10-1 to 10-n, that is, the video signals are input to the matrix switcher 100 through video lines. Of course, the control signal (ie, camera control data) provided from the central server 200 to the matrix switcher 100 is provided to the CCTV cameras 10-1 to 10-n via data lines. In FIG. 2, a solid line means a video line and a dashed line means a camera control data line among the lines between the CCTV cameras 10-1 to 10-n, the matrix switcher 100, and the central server 200.

Here, the computer video matrix switcher 100 receives a video switching command, which is one of control signals, through the RS485 data line and connects the video input and the video output. RS485 data line refers to a line that can perform communication that conforms to the RS485 standard, a serial communication protocol standard. In addition, the matrix switcher receives camera control data (ie, a control signal) from the central server 200 through the RS485 data line and transmits the camera control data to the CCD cameras 10-1 through 10-n through the RS485 data line. do.

The matrix switcher 100 is connected to the central server 200 through the video line and the data line. Through this, the video signals of the CCTV cameras 10-1 to 10-n are provided to the server, and the control signal of the central server 200 is provided. The central server 200 is connected to at least one local computer 300 through a communication network.

In the central server 200 and the local computer 300, a control program 400 is installed to control a matrix switcher 100 so that a user performs a monitoring function.

Of course, the user using the central server 200 and the local computer 300, each CCTV by the operation of the menu button on the screen while viewing the image taken by the camera on the monitor of the PC on which the control program 400 is installed You can select a camera to monitor and perform various camera control functions. Recently, since a GUI type program has been generalized, it is possible to easily perform monitoring and camera control functions with a mouse or the like on a screen displayed on a monitor.

The central server 200 converts an analog video signal into digital video data and transmits the analog video signal to a local computer 300 connected through a network. Of course, the matrix switcher 100 transmits the camera image switching command and the camera control data received from the local computer 300.

The local computer 300 may display a camera icon on a monitor (ie, a map) on a monitor through the GUI method described above, so that the user may easily select an image switching of the computer video matrix switcher. Also, image data is displayed on the monitor.

Hereinafter, the matrix switcher 100 of the present embodiment will be described in more detail with reference to FIG. 3.

The matrix switcher 100 of the present embodiment is connected to the central server 200 through the CPU 160 and the data line, and receives the CPU 160 operation command and the camera control data through data exchange with the central server 200. The communication control unit 170 transmits the result to the central server 200, the internal signal circuit control unit 150 controlling the signal circuit inside the matrix switcher 100 by a command of the CPU 160, and a plurality of cameras ( A video signal input unit 110 for receiving a camera video signal transmitted from a video signal line such as a coaxial cable from 10-1 to 10-n), and selecting the input camera video signal under the control of the internal signal circuit controller 150. A video input signal switching unit 120, an amplifying unit 130 for amplifying the switched video input signal, and converts the video input signal into an NTSC composite signal and converts the video signal into a video input terminal of the central server 200. NTSC output Sum and a signal output section 140.

At this time, the image output of the composite signal output unit 140 is input to the image input terminal of the central server 200 through the coaxial cable. In addition, the communication controller 170 and the central server 200 perform communication by serial communication (for example, RS232, RS485, and the like).

Here, the camera control data is data for functions such as the rotation, zooming, camera switching, etc. of the camera, which can be set and selected by the user in the control program 400. In addition, the internal signal circuit controller 150 may be functionally integrated into the CPU 160.

The matrix switcher 100 processes the camera video signal and provides the processed video signal to the video input terminal of the central server 200.

In addition, the matrix switcher 100 performs a task by the control program 400 embedded in the central server 200 and the local computer 100, and drives the CCTV cameras 10-1 to 10-n. And control data (camera control data) are also generated by the control program 400 embedded in the central server 200 and the local computer 300.

Moreover, as shown in FIG. 3, the control program 400 is built in the central server 200 of this embodiment. Through this, data for camera control can be generated and the camera can be directly controlled.

In this embodiment, a plurality of local computers 300 are connected to the central server 200 via a network. In this case, the local computer 300 may be connected to the central server 200 through a separate authentication process. Of course, the present invention is not limited thereto and may be accessed after registering the IP or MAC address of the local computer 300 in advance. Of course, it is possible to be connected to the central server 200 through both methods. The central server 200 and the local computer 300 display a drawing (that is, a map where CCTV cameras 10-1 to 10-n are located) on the screen, and display a camera icon on the drawing to display a matrix switcher ( The user may select the image switching of 100).

Here, as mentioned above, the central server 200 and the local computer 300 are connected through a communication network. Therefore, the central server 200 digitizes a video signal (for example, an NTSC signal) input from the matrix switcher 100. The digitized video signal is then provided to a local computer 300 connected thereto via a communication network.

Therefore, the system of the present embodiment can be free from the limitation of the line laying and distance due to the main control station and the remote site is not directly connected to the matrix switcher as in the conventional Korean Patent No. 10-0392727. That is, in the registered patent, since the main control station and the remote site are simultaneously connected to the matrix switcher, a line for transmitting the video signal output from the matrix switcher should be installed at the remote control station as well as the remote control station. However, when the remote site falls over a certain distance, many problems have occurred, such as additional amplifiers due to noise generated in the line. This has the disadvantage that there is a limit in the distance of the remote location, that is, the separation distance. In addition, since only one of the main control station and a plurality of remote sites can transmit signals to the matrix switcher, it is difficult to effectively control the camera.

However, as mentioned above, in the present embodiment, only the central server 200 and the matrix switcher 100 are connected by a coaxial cable for analog video transmission, and a communication cable such as RS485 or RS232 for communication. In addition, since the plurality of local computers 300 are connected to the central server 200 through a network (that is, a computer network cable), the above-described distance limitation is not provided, and additional cost incurred by laying lines can be reduced.

In addition, in the present embodiment, since the image of the matrix switcher 100 is simultaneously provided to not only the central server 200 but also a plurality of local computers 300 connected thereto, effective control can be performed, and the central server 200 The control program 400 may perform sequential and systematic control by arranging and controlling signals provided from the local computers 300 connected thereto. Here, the computer network cable can use at least one of LAN cable, UTP, STP, FTP cable and CAT cable. Here, the network refers to the internet network or local network.

The control program 400 is installed in the central server 200 and the local computer 300, respectively.

4 is a block diagram of a control program according to an embodiment of the present invention. 5 is a block diagram of a control program according to a modification to an embodiment of the present invention.

As shown in FIGS. 4 and 5, the control program 400 allows a user to control the CPU 160 of the matrix switcher 100 and a control data generation module 426 that generates camera control data. A camera focus control module 402 which controls the control data generation module 426 by the camera focus adjustment module 404 and the camera focus adjustment module 402 to adjust the focus of the camera to generate data for camera focus control; The camera zoom control module 406 controls the control data generation module 426 by the camera zoom selection module 408 and the camera zoom selection module 408 to allow the user to select the camera zoom to generate data for the camera zoom control. Control by the camera rotation selection module 412, the camera rotation selection module 412 to allow the user to select the camera rotation (PAN) and adjust the rotation speed. Camera rotation control module 410 to control the data generation module 426 to generate data for camera rotation control and rotation speed adjustment, camera automatic rotation selection module 416 to allow the user to set the automatic rotation of the camera, camera Camera auto-rotation control module 414 for controlling the control data generation module 426 by the auto-rotation selection module 416 to generate camera auto-rotation data, camera for allowing the user to set automatic switching of each camera Camera automatic switching control module 418 to control the control data generation module 426 by the automatic switching setting module 420, the camera automatic switching setting module 420 to generate the camera automatic switching data, the camera focus adjustment Module 404, camera zoom selection module 408, camera rotation selection module 412, camera auto rotation selection module 416, camera automatic switching settings Adjustment / selection / setting data storage module 424 for storing adjustment, selection and set data in module 420, camera position storage module 422 for storing positions of all cameras installed in the field, matrix switcher 100 And an image display module 428 for displaying the video signal transmitted from the user interface in a predetermined user interface.

In the above configuration, the camera automatic switching control module 418 refers to the camera position data stored in the camera position storage module 422 to perform data processing.

Here, the image provided from the matrix switcher 100 to the central server 200 is displayed on the image display window connected to the central server 200 by the control program 400. In addition, the image provided from the central server 200 to each local computer 300 is displayed on the image display window by the control program 400 of each local computer 300.

Looking at the video display window, a radio button for adjusting the focus of the camera is installed on one side of the screen. This button soon represents the camera focusing module 404. When the button of the camera focusing module 404 is adjusted, the camera focusing control data is generated by the camera focusing control module 402 in the control data generating module 426 and transmitted to the camera via the matrix switcher 100 (see: Path of camera control data in FIG. 3).

In addition, the camera zoom selection module 408 may be implemented as two buttons (+) and (-) on the screen. When the user adjusts the button of the camera zoom selection module 408 with a pointing device such as a mouse, the camera zoom control module 406 causes the control data generation module 426 to generate corresponding control data to zoom the camera. To control.

The camera rotation selection module 412 includes arrow buttons [], [], [], [] and rotation speed level buttons [1], [2], [3], [4], and [5] indicating the rotation direction of the camera. ] Can be implemented. The rotation speed level data set by the user is stored in the adjustment / selection / setting data storage module 424. Step [1] is the slowest rotational speed, and step [5] is the fastest rotational speed. It can be designed so that the green light is turned on for the button corresponding to the currently set speed.

The camera auto-rotation selection module 416 is designated as "AUTO PAN", and the stored setting values are stored in the memory module so that they can be automatically realized in the state even after restarting the computer or resuming the power failure.

The camera automatic switching setting module 420 serves to select a function of automatically switching cameras installed at different sites at predetermined time intervals, and is implemented as a setting button and a start button. The setting button can be programmed to register a camera for automatic switching or to set a switching time. The camera automatic switching setting module 420 refers to the position data of the camera from the camera position memory module 422 and uses the same. In addition, in order for the camera automatic switching control module 420 to operate, the camera position memory module 422 refers to the position data of the camera.

4 shows the configuration of the control program. In addition, components related to installation, setting, and other UI may be easily selected by those skilled in the art according to the design of the control program.

As in the modification of FIG. 5, the control program 400 may be variously expanded. As shown in the figure, the camera registration processing module 430 and the installation site plan view storage module 432 are added as new components. The camera registration processing module 430 registers the position of the camera on the installation site plan view stored in the installation site plan view storage module 432.

The position of the camera registered in the camera registration processing module 430 is stored in the camera position storage module 422. In addition, the installation site plan view storage module 432 stores the installation site camera map so that the position of the camera installed on the site plan of the monitoring target building or the like is displayed.

By adding these two components (camera registration processing module 430 and installation site floor plan storage module 432), a camera map is displayed on the image display window of the server and the local computer, and the desired camera position is clicked to display the image of the camera. The CPU 160 of the matrix switcher 100 may control the image input signal switching unit 120 to select a signal. In this way, the user can easily monitor the image displayed by the corresponding camera on the image display window by clicking a desired camera position by floating a camera map on the UI screen on which the image is displayed.

6 and 7 are views for explaining a modification of the system according to an embodiment.

In the present system, the wireless communication unit 500 may be embedded in the central server 200 and the local computers 300 as in the modification of FIG. 6. Through this, the central server 200 and the local computers 300 may be connected to each other via a wireless network. This can reduce the separate line installation cost, there is an advantage that can overcome the spatial limitations of the line buried.

In addition, as shown in the modification of FIG. 7, the image input signal switching unit 210 and the internal signal circuit controller 220 may be provided in the central server 200. In this case, the matrix switcher 100 provides all the video signals (ie, video signals) provided from the cameras 10-1 to 10-n to the central server 200. At this time, the central server 200 receives all video signals. In this case, only the request signal among the image signals provided by the image input signal switching unit 210 may be provided. At this time, the operation of the image input signal switching unit 210 is controlled by the internal signal circuit controller 220.

10: camera 100: matrix switcher
200: central server 300: local computer
400: control program 500: wireless communication unit

Claims (8)

A plurality of CCTV cameras for taking an image;
Controlling the CCTV camera, transmitting at least one image of the CCTV camera image, and exchanging data with the CPU and the central server on which the control program is installed, and receiving an operation command and camera control data of the CPU from the central server; Communication control unit for transmitting the performance result to the central server, an image signal input unit for receiving the camera image signal transmitted from a plurality of cameras, such as coaxial cable, and video input signal switching for selecting the input camera image signal under the control of the CPU part; A matrix switcher including a composite signal output unit for converting an image input signal into an analog composite signal for transmission to a central server and outputting the composite signal to a video input terminal of a computer;
Connected to the matrix switcher, the image signal transmission line, and the data transmission line, respectively, the image signal transmission line receives the image from the matrix switcher, and the data transmission line provides the signal for controlling the CCTV camera to the matrix switcher; A central server for digitizing the provided video signal; And
At least one local computer connected to the central server by a network, receiving a digitized image by the central server, and providing a control signal for controlling a CCTV camera,
The central server and the matrix switcher are connected by a coaxial cable for video transmission and a communication cable for communication, and the central server and the local computer are connected by a network cable.
The method according to claim 1,
The central server includes a server control program for causing the matrix switcher to perform a function and generating data for driving and controlling the camera;
The local computer includes a local control program for generating data for controlling camera driving;
And said server control program has a function of processing a signal transmitted from said local control program and providing it to said matrix switcher.
The method according to claim 2,
The server and local control program,
A control data generation module for generating a command for controlling the matrix switcher and camera control data;
A camera focusing module for allowing a user to adjust the focus of the camera;
A camera focus control module for controlling the control data generating module by the camera focus adjusting module to generate data for camera focus control;
A camera zoom selection module for allowing a user to select a camera zoom;
A camera zoom control module configured to generate a camera zoom control data by controlling a control data generation module by the camera zoom selection module;
A camera rotation selection module for allowing a user to select a camera rotation and adjust a rotation speed;
A camera rotation control module for controlling a control data generation module by the camera rotation selection module to generate data for camera rotation control and rotation speed adjustment;
A camera auto rotation selection module for allowing a user to set a camera pan;
A camera autorotation control module configured to generate a camera autorotation data by controlling a control data generation module by the camera autorotation selection module;
A camera automatic switching setting module for allowing a user to set automatic switching of each camera;
A camera automatic switching control module configured to generate a camera automatic switching data by controlling a control data generation module by the camera automatic switching setting module;
An adjustment / selection / setting data storage module for storing adjustment, selection, and setting data in the camera focus adjustment module, camera zoom selection module, camera rotation selection module, camera automatic rotation selection module, and camera automatic switching setting module; And
A closed circuit television system comprising a camera position storage module for storing positions of all cameras installed in a field.
delete The method according to claim 1,
The matrix switcher and the central server are connected by a line for transmitting an NTSC composite signal, and the central server and the local computer are connected by a network.
The method according to claim 5,
The network is a closed circuit television system, characterized in that using a network or a wireless communication network consisting of at least one of a LAN cable, UTP, STP, FTP cable and CAT cable.
The method according to claim 1,
The central server includes a video input signal switching unit for selecting a video signal provided from the matrix switcher.

delete

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