KR19990070119A - Video Surveillance System and Method Using Digital Cable TV System - Google Patents

Abstract

The technical field to which the invention described in the claims belongs.

A digital cable television system.

B. Technical problem to be solved

Provided are a video surveillance apparatus and method using a digital cable television system.

C. Summary of the Solution

In a digital cable television system, a surveillance camera for inputting image information of a plurality of specific zones is connected to a remote terminal connected to a subscriber box and a plurality of control boxes for controlling the surveillance camera are separately connected to the video information for the specific zone. If the request is characterized in that for transmitting to the subscriber.

D. Significant Uses of the Invention

Used for digital cable television systems.

Description

Video surveillance system and method using digital cable TV system

The present invention relates to a digital cable television system, and more particularly, to a video surveillance apparatus and method using a digital cable television system.

In general, a multimedia system is a system that processes various media such as documents, pictures, images, audio, video, and the like into one object. In implementing such a multimedia system, digital cable television systems are now emerging. The cable television is a communication that distributes high-quality broadcast television signals supplied from a high-sensitivity video supply device to a television receiver through a set top box of each home by using a broadband transmission line such as a coaxial cable or an optical cable. Say the way. The cable television has been developed as a solution to solve the difficulty in receiving a hard-to-receive blind spot as well as to supply many types of cable TV programs. Currently, cable television is not only used for retransmission of television broadcasting but also for independent broadcasting or connection with a computer. There are also systems that enable a variety of information provision.

1 is a block diagram of a conventional digital cable television system. Referring to FIG. 1, the configuration and operation of a conventional digital cable television system will be described below.

Subscriber management device 12 recognizes the identification number of the subscriber box (34, 36, 50, 52), and manages the information according to subscriber management and billing for each subscriber, such as new subscription, termination. The head-end unit 10 provides video information. The ATM switch 16 supplies the video information supplied from the headend unit 10 to the central terminal 20 through the optical transmission path 18. The central terminal 20 transmits the video information supplied from the ATM switch 16 to the subscriber boxes 34, 36, 50, and 52. The system manager 22 manages the central terminal 20 and the video manager 24 manages all video information provided to the subscriber. The remote terminals 28 and 44 are connected to the central terminal 20 through the optical transmission paths 26 and 42, and the video information provided from the central terminal 20 is transferred to the corresponding subscriber boxes 34, 36, 50 and 52. send. Subscriber boxes 34, 36, 50, and 52 are installed in the home, and receive video information transmitted from the remote terminals 28, 44 and output to the television receivers 38, 40, 54, 56. UTP cable (30, 32, 46, 48) is a copper cable connecting the remote terminals 28, 44 and subscriber boxes (34, 36, 50, 52) and the video information transmitted from the remote terminals (28, 44) Send to the subscriber box (34, 36, 50, 52).

The digital cable television system as described above serves video information specialized for each field. That is, the user selects a broadcast in a desired field among the specialized cable broadcasts and receives the cable broadcast service for a fee. However, in the conventional digital cable television system as shown in FIG. 1, although a program such as a video provided by each local cable television broadcasting station can be provided downward to subscribers, it cannot transmit a video camera video signal upward. .

As described above, in the conventional digital cable television system, each local cable television broadcasting station can serve a program such as video downward to subscribers, but cannot transmit a video camera video signal upward.

Accordingly, an object of the present invention is to provide an apparatus and method for transmitting a video signal of a video camera even in a digital cable television system.

1 is a block diagram of a conventional digital cable television system;

2 is a block diagram of a digital cable television system according to an embodiment of the present invention;

The present invention for achieving the above object is separately connected to a plurality of control box for controlling the surveillance camera and the surveillance camera for inputting the image information for a plurality of specific areas in the remote terminal connected to the subscriber box in the digital cable television system If there is a request for the video information for the specific area from the subscriber is characterized in that for transmitting to the subscriber.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the annexed drawings, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

2 is a block diagram of a digital cable television system according to an exemplary embodiment of the present invention. Referring to FIG. 2, the configuration and operation of a digital cable television system according to an embodiment of the present invention will be described.

Subscriber management device 12 recognizes the identification number of the subscriber box (34, 36), and manages information according to subscriber management and billing for each subscriber, such as new subscription, termination. The head end unit 10 provides video information. The ATM switch 16 supplies the video information supplied from the headend unit 10 to the central terminal 20 through the optical transmission path 18. The central terminal 20 transmits the video information supplied from the ATM switch 16 to the subscriber boxes 34 and 36. The system manager 22 manages the central terminal 20. The video management device 24 manages all video information provided to the subscriber. The first remote terminal 28 transmits the video information provided from the central terminal 20 to the corresponding subscriber boxes 34 and 36 through the optical transmission path 26. The Nth remote terminal 44 controls the control boxes 100 and 102 according to the control command of the subscriber transmitted through the subscriber boxes 34 and 36. Subscriber boxes 34 and 36 are installed in the home and receive video information transmitted from the first remote terminal 28 and output to the television receivers 38 and 40. The UTP cables 30 and 32 are copper wire cables connecting the first remote terminal 28 and the subscriber boxes 34 and 36 to the subscriber boxes 34 and 36. The video information transmitted from the first remote terminal 28 is transferred to the subscriber boxes 34 and 36. send. The control boxes 100 and 102 are connected to the N-th remote terminal 44 and the UTP cables 46 and 48, and zoom-in to the surveillance cameras 104 and 106 according to the control of the N-th remote terminal 44. , Zoom-out, and so on. The surveillance cameras 104 and 106 are controlled by the control boxes 100 and 102 and are installed in a predetermined specific zone to transmit image information about the specific zone to the Nth remote terminal 44.

An operation of the digital cable television system for providing a service for allowing a subscriber to watch video information of a specific area at home through a surveillance camera according to an embodiment of the present invention will be described in detail with reference to FIG. 2. First, when a subscriber wants to watch video information of a specific area by using the digital cable television system, the subscriber inputs various control commands using the control command keys provided in the subscriber boxes 34 and 36. Accordingly, the control signal according to the control command from the subscriber box (34, 36) is transmitted upward through the first remote terminal 28 to the central terminal 20. Then, the video management device 24 checks whether the subscriber is registered, and if the subscriber is a registered subscriber, switches to the subscriber and the desired surveillance cameras 104 and 106 through the ATM switch 16. Accordingly, the first remote terminal 28 for the subscriber boxes 34 and 36 and the subscriber boxes 34 and 36, the central terminal 20, the Nth remote terminal 44 for the control boxes 100 and 102, and the control boxes 100 and 102. ), A path leading to the surveillance cameras 104 and 106 is formed. Accordingly, the control signals transmitted from the subscriber boxes 34 and 36 are transmitted to the Nth remote terminal 44 that controls the control boxes 100 and 102. Then, the N-th remote terminal 44 controls the control boxes 100 and 102 according to the control signal so that the monitoring cameras 104 and 106 perform operations such as up, down, left, right, zoom in, and zoom out. Image information of a specific area input through the adjusted surveillance cameras 104 and 106 is transmitted to the subscriber boxes 34 and 36 again along the formed path and displayed on the subscriber's television receivers 38 and 40. Thus, the subscriber can obtain the image information for a specific area by using a digital cable television system.

As described above, according to the present invention, the subscriber of the digital cable television system can receive the video information of a specific area input through the surveillance camera provided in the digital cable television system and control the function of the surveillance camera. There is this.

Claims (2)

In the video surveillance apparatus using a digital cable television system, A surveillance camera installed in a preset specific zone and inputting image information of the specific zone; A control box connected to the surveillance camera to control various functions and directions of the surveillance camera; A control box remote terminal connected to the control box and transmitting various control signals for controlling the surveillance camera to the control box; A subscriber box that receives various control command keys from a subscriber of the cable television system and outputs a control signal according to the control command keys; A remote terminal for the subscriber box connected to the subscriber box and receiving the control signal and transmitting the control signal back to the central terminal; When the control signal is received, the subscriber checks whether the subscriber is a registered subscriber, and switches the subscriber to connect with the surveillance camera only when the subscriber is a registered subscriber to form a path and adjust the surveillance camera. And a central terminal for transmitting a control signal to the remote terminal for the control box. In the video surveillance method using a digital cable television system having a surveillance camera connected to a remote terminal and a control command key for controlling the surveillance camera in a subscriber box, Checking whether the subscriber is a registered subscriber when there is a request from the subscriber for image information of a specific area input through the surveillance camera; When the subscriber is a registered subscriber, a path is formed between the subscriber and the surveillance camera and the image information input through the surveillance camera whose function and direction are controlled according to a control command input from the subscriber is determined. And transmitting the data to the subscriber via the digital cable television system.