KR20030066930A - Network management system using active type directional coupler - Google Patents

Abstract

PURPOSE: A network management system using an active directional coupler is provided to automatically connect and disconnect a network without visiting a site upon subscription or termination by a user for a device whether a data transmission service is performed, and to detect an error of the directional coupler so as to efficiently monitor the network. CONSTITUTION: An active directional coupler(A) comprises a switching unit formed by installing on/off switches in a distributor output terminal of the lowest group connected to a user, an RF(Radio Frequency) modem exchanging information with a broadcasting center through an input/output unit, a CPU outputting a control signal for controlling on/off of each switch connecting the distributor with the user according to control information provided from the broadcasting center and collecting information detected from the first to third sensors to provide the collected information to the broadcasting center, a switch operating unit operating each switch according to an output control signal of the CPU, the first sensor sensing a temperature of a place where the directional coupler(A) is installed, and the second and the third sensors sensing a voltage and a current of a signal passing the directional coupler(A). The broadcasting center comprises an active directional coupler manager(20) receiving information on a temperature, a voltage and a current of the active directional coupler(A) from the CPU through the RF modem to decide an error of the active directional coupler(A) and notify the error to a manager and outputting the control signal to control on/off of the switching unit of the active directional coupler(A) installed in a corresponding place upon subscription or termination, and a displayer(21) displaying the information on the temperature, the voltage and the current of the active directional coupler(A) provided from the active directional coupler manager(20) on a screen.

Description

Network management system using active branch system {Network management system using active type directional coupler}

The present invention relates to an active branch, particularly in the place where the video and data transmission service is performed through the network, such as CATV, MATV, SMATV, etc. When the user joins or terminates the management staff does not go directly to the field automatically The present invention relates to a network management system using an active branch which can be blocked, detect an abnormality of an active branch, and promptly deal with the network, thereby efficiently monitoring the network, and prohibiting illegal use of services.

Due to the diversification of broadcasting and communication media, high-speed communication is emerging as a transmission medium capable of instantaneous transmission of radio resources in a large area, and the potential market for the high-speed communication that is rapidly spreading is relatively present. It will expand into a huge market in the future.

1 is a diagram illustrating a network such as CATV (cable TV), MATV, SMATV, and the like currently provided.

A broadcasting center that processes the video signals captured by the camera or video signals received through the antenna and transmits them to the service subscriber (user) through the network line, and manages the service subscriber and establishes an additional service network provided to the subscriber. Wow,

A network line interconnecting the broadcasting center and subscribers, a network amplifier installed in the middle of the network line to amplify a transmission signal, and branched data transmitted from the broadcasting center in the middle of the network line are provided to the service subscriber. It is comprised by the diverter D to make.

2 shows the configuration of a conventional tap-off D,

An input / output unit (1) for implementing signal input / output of a broadcasting center side and a user side through a network line; It is composed of a plurality of distributors (2a ~ 2g) for supplying to the user side by branching the down signal input through the input and output unit 1 in several ways.

The branching device (D) as described above is composed of a plurality of subgroup distributors gradually spread in several ways from the distributor group 2a of the upper group connected to the network line, and the distributors 2d to 2g existing in the lowest group are provided. The user side is connected via

In the conventional branching device (D) configured as described above, data transmitted from the broadcasting center side is supplied to the distributor 2a of the upper group through the input / output unit 1, and the data passing through the distributor 2a is the distributor of the lower group. It is supplied to the user through (2b ~ 2g).

However, in the related art, automatic on / off control of the tap-off is not possible. Therefore, when the broadcasting center and the user are to be connected to each other, the manager must be dispatched to the site and electrically connect the lowest group of the tap-off and the user through a separate manual operation. In addition, even when the user cancels, the administrator must go to the site to disconnect the tap-off and the user side, and the central management room of the broadcasting center cannot monitor the abnormality of the tap-off connecting each user. When a problem occurs in the device, it is not possible to cope with this quickly, which causes a problem of very troublesome network management.

Accordingly, the present invention for solving the above problems is to install a switch of the on / off function at the output terminal of the branch that connects the data supplied from the broadcasting center through the network line to the user side of the actual consumer, from the management of the broadcasting center And control means for selectively turning on / off the switch according to the transmitted control information. The broadcasting center determines whether an active branch is abnormal according to the detected information transmitted from the control means, and copes with this. When the user joins or cancels the user, it configures a management unit that outputs a control signal to control the on / off switch of the active branch, so that the user can receive video and data transmission services through the network such as CATV, MATV, and SMATV. When joining or canceling the company, the management staff can automatically set up the network without going to the site. Connection and can block, hameuroseo promptly by detecting at least whether or not the active turnout may be subjected to network monitoring efficiently, it is an object to provide a network management framework with an active branch A to inhibit the unfair use of the service.

The present invention for achieving the above object,

A broadcasting center that processes the video signals captured by the camera or video signals received through the antenna and transmits them to the service subscriber (user) through the network line, and manages the service subscriber and establishes an additional service network provided to the subscriber. Wow,

In the network management system comprising a network line for interconnecting the broadcasting center and subscribers, and a network amplifier installed in the middle of the network line to amplify a transmission signal,

It is installed in the middle of the network line and configures an active branch to provide the service subscriber by diverting the data transmitted from the broadcasting center into several branches.

The active branching machine,

A switching unit which is provided with an on / off switch respectively at the distributor output terminal of the lowest group connected to the user side; An RF modem communicating information with a broadcasting center through the input / output unit; Outputs a control signal for on / off control of each switch connecting the distributor and the user side according to the control information supplied from the broadcasting center, collects the information detected from the first to third sensors to supply to the broadcasting center CPU; A switch driver for driving each switch according to the output control signal of the CPU; A first sensor for sensing a temperature at a tap-off point; Second and third sensors for sensing the voltage and current of the signal passing through the tap-off; Consists of,

The broadcasting center receives the information on the temperature, voltage and current of the active branch from a certain period through the aphmodem of the active branch at regular intervals to determine whether the active branch is abnormal and notifies the manager. In case of occurrence, the active branch management unit outputs a control signal for controlling the on / off switching of the switching unit of the active branch installed at the corresponding position, and the temperature, voltage and current of the active branching unit supplied to the active branch management unit. A display unit for displaying information on the screen is further configured.

In addition, the active branch management unit is characterized in that in connection with the subscriber management system of the broadcasting center occurs when the user overdue the service charges transmits a control signal for turning off the switch installed on the user side to the corresponding active branch .

1 is a view showing a typical TV network.

2 is a block diagram showing a conventional tap-off.

Figure 3 is a block diagram showing a network management system using an active branch of the present invention.

Figure 4 is a block diagram showing an active branch applied to the present invention.

5 is a flowchart showing a control process of the present invention.

※ Explanation of code for main part of drawing

1: input / output part, 2a ~ 2g: distributor,

10: switching unit, S1 ~ S8: switch,

11: RF modem, 12: CPU,

13: switch drive, 14-16: sensor,

A: active branch, 20: active branch management,

21: display unit

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 3 to 5.

In the description of the present invention, the same components as in the prior art will be denoted by the same reference numerals to avoid redundant description.

The greatest feature of the present invention is to implement an active branch (A) by installing active control means capable of on / off control at the output of the splitter (2d ~ 2g) of the lowest group of the branching, and the switching in the broadcasting center By forming a management means for automatically controlling the means, so that the administrator does not have to go to the site when the user joins or terminates.

The active control means of the active branch A includes a switching unit 10, an RF modem 11, a CPU 12, a switch driving unit 13, and first to third sensors 14 to 16. .

As shown in FIG. 4, the switching unit 10 connects and installs switches S1 to S8 capable of on / off control to the output terminals of the dividers 2d to 2g of the lowest group constituting the branch A. FIG. The switches S1 to S8 are controlled by the switch driver 13 operated by the control signal of the CPU 12 to be set up later.

The RF modem 11 communicates with the active branch management unit 20 of the broadcasting center through the input / output unit 1.

The CPU 12 outputs a control signal for selectively turning on / off the switches S1 to S8 of the switching unit 10 according to the control information supplied from the active branch management unit 20 of the broadcasting center. Collects information on the temperature, voltage, and current of the active branch (A) detected from each of the sensors 14 to 16 to be described later, and the RF modem 11 when the active branch management unit 20 requests. ) Has the function to send.

The switch driver 13 controls on / off of each of the switches S1 to S8 constituting the switching unit 10 according to the switching control signal output from the CPU 12.

On the other hand, the first to third sensors (14 to 16) are installed in the active branch (A), the first sensor 14 detects the ambient temperature where the active branch (A) is installed CPU 12 , The second sensor 15 senses the voltage passing through the tap-off A and supplies it to the CPU 12, and the third sensor 16 detects the current passing through the tap-off A. To the CPU 12 by collecting the information detected by the first to third sensors 14 to 16 by the CPU 12 to the active branch management unit 20 of the broadcasting center. do.

In the broadcasting center, an active branch management unit 20 and a display unit 21 are additionally installed.

The active branch management unit 20 exchanges information with the sipe oil 12 through the Afmodem (11) of a plurality of active branch (A) installed on the network line, the temperature of each active branch (A), Collecting information about the voltage and current to determine whether the abnormality and at the same time to send a control signal for the on / off control of the switches (S1 ~ S8) constituting the switching unit 10 of the active branch (A) Has the function.

The display unit 21 outputs the information on the screen when the information on the temperature, voltage, and current is transmitted from the sieve oil 12 of the active branch A, and the administrator displays the current state of the active branch A. Make judgment.

Referring to the operation of the present invention configured as described above is as follows.

First, when a user joins or cancels a new network, the administrator can implement the network connection and blocking centrally without going out to the field.

That is, when a new subscriber is generated, the switch of the switching unit 10 formed in the distributor of the active branch A connected to the place where the subscriber is located in the active branch management unit 20 of the broadcasting center according to the operation of the manager. Outputs a control command for switching the S1 to S8 to the ON state, and the CPU 12 switches corresponding to the corresponding switch S1 to S8 according to the control command of the active branch management unit 20 transmitted through the RF modem 11. ) Is output to the switching driver 13 for switching on to the on state, and the switching driver 13 switches the corresponding switch of the switching unit 10 to the on state so that a newly subscribed user can receive Make available services.

When the user cancels, the corresponding switch is turned off by the above control operation so that the user can no longer use the service.

As described above, when a user newly joins or cancels, the administrator does not have to go out to the site directly, thereby increasing work efficiency.

In addition, by using the present invention it is possible to remotely check the state of the active branch (A) installed on the user side.

That is, the first to third sensors 14 to 16 of the active branch A may detect the temperature of the place where the active branch A is installed, the voltage level of the signal passing through the branch and the current level, and the like. 12), the CPU 12 transmits through the RF modem 11 when there is a request for information from the active branch management unit 20 of the broadcasting center, the active branch management unit 20 every predetermined time Request information to each branch (A) installed on the network line to collect information to determine whether the abnormality of each active branch (A).

Information on the temperature, voltage, and current input to the active branch management unit 20 is displayed through the display unit 21 connected to the active branch management unit 20, and the manager is output to the display unit 21. By using the information it is determined whether the active branch (A) abnormal.

As a result of the determination, if it is determined that an abnormality occurs in the specific active branch A, the repair agent is dispatched immediately to repair the active branch A.

On the other hand, the CPU 12 of the active branch (A) receives the information detected from the first to third sensors 14 to 16, the detection value exceeds a certain level, so that the active branch (A) If it is determined that the abnormal state, immediately send the active state occurrence status of the active branch (A) to the active branch management unit 20 so that this administrator can respond quickly.

That is, due to an accident such as a short circuit, a short circuit, or a fire on the user side, a temperature rapidly detected by the first sensor 14 increases, or a level of voltage or current detected by the second and third sensors 15 and 16 is increased. When suddenly high or very low, such information is quickly output to the active branch management unit 20 so that the administrator can respond quickly.

In addition, if the present invention is used in connection with the subscriber management system of the broadcasting center in the case of overdue the service usage fee to the active branch management unit 20 to turn off the switch (S1 ~ S8) to automatically connect the corresponding user. By not allowing the user to use the service anymore, the fee arrears do not have to be urged, and thus the subscribers can be managed efficiently.

As described above, the present invention installs an on / off switch at an output terminal of a branch that connects data supplied from a broadcasting center to a user, which is a real consumer, through a network line, and controls transmitted from a management unit of a broadcasting center. And control means for selectively controlling the switch on / off according to the information, and in the broadcasting center, it is determined whether the active branch is abnormal according to the detection information transmitted from the control means, and cope with it. It configures a management unit that outputs control signals for on / off control of the switch of the active branch when joining or canceling, so that the user's subscription or registration can be performed at the place where video and data transmission service is performed through the network such as CATV, MATV, SMATV In case of cancellation, the management staff will automatically connect the network without going to the site. It is possible to perform network monitoring efficiently by detecting abnormality of active branch and responding promptly, and to provide network management system using active branch to prevent unfair use of service. .

Claims (2)

A broadcasting center that processes the video signals captured by the camera or video signals received through the antenna and transmits them to the service subscriber (user) through the network line, and manages the service subscriber and establishes an additional service network provided to the subscriber. Wow, In the network management system comprising a network line for interconnecting the broadcasting center and subscribers, and a network amplifier installed in the middle of the network line to amplify a transmission signal, It is installed in the middle of the network line and configures an active branch to provide the service subscriber by diverting the data transmitted from the broadcasting center into several branches. The active branching machine, A switching unit which is provided with an on / off switch respectively at the distributor output terminal of the lowest group connected to the user side; An RF modem communicating information with a broadcasting center through the input / output unit; Outputs a control signal for on / off control of each switch connecting the distributor and the user side according to the control information supplied from the broadcasting center, collects the information detected from the first to third sensors to supply to the broadcasting center CPU; A switch driver for driving each switch according to the output control signal of the CPU; A first sensor for sensing a temperature at a tap-off point; Second and third sensors for sensing the voltage and current of the signal passing through the tap-off; Consists of, The broadcasting center receives the information on the temperature, voltage and current of the active branch from a certain period through the aphmodem of the active branch at regular intervals to determine whether the active branch is abnormal and notifies the manager. In case of occurrence, the active branch management unit outputs a control signal for controlling the on / off switching of the switching unit of the active branch installed at the corresponding position, and the temperature, voltage and current of the active branching unit supplied to the active branch management unit. Network management system using an active branch, characterized in that the display further configured to display the information screen. The method of claim 1, The active branch management unit, in connection with the subscriber management system of the broadcasting center, when the user overdue the service fee occurs, the active branch, characterized in that for transmitting the control signal for turning off the switch installed on the user side to the corresponding active branch Network management system using the machine.