KR100401424B1 - A tap-off which can observe the state of a drop line in the user side and a remote control system using the tap-off and the method thereof - Google Patents

Abstract

The present invention relates to a subscriber branch terminal capable of monitoring subscriber station transmission path status, a remote control system and a remote control method using the same.

According to one aspect of the present invention, there is provided a remote control method using a subscriber branch terminal capable of monitoring a subscriber station transmission path state by using a remote control system for remotely transmitting and controlling a control signal to a user terminal connected through a network. A remote control method, comprising: causing a subscriber branch terminal to detect one or more problems such as disconnection, short circuit, or noise in a communication line, and generating a signal for the main control terminal to control the subscriber branch terminal; The control function controls the tap on and off of the subscriber branch terminal.

The present invention can improve the communication quality satisfaction of the subscribed customer, and can not only deal with the problems occurring on the network more quickly, but also can control and confirm the disconnection and connection by two-way communication, illegal wire of the cable The user can be easily identified, and the disconnection, short circuit, and noise occurrence location of the drop line can be immediately identified for quick response.

Description

A TAP-OFF WHICH CAN OBSERVE THE STATE OF A DROP LINE IN THE USER SIDE AND A REMOTE CONTROL SYSTEM USING THE TAP -OFF AND THE METHOD THEREOF}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to data communication, and in particular, a terminal for a subscriber branch that detects a problem such as disconnection, short circuit, or signal noise in a transmission line connected to a subscriber end, and identifying a cause of a problem in the transmission path, thereby smoothly transmitting data. It relates to a remote control system and a remote control method that can be made.

The Internet has established itself as a tool that allows users to easily acquire various information. The Internet has led to the development of the Information Technology (IT) industry. In response to the growing population demand, operators have focused on facility expansion, prioritizing subscriber acceptance rather than quality management of transmission networks.

With the development of Internet technology, the demand for cable TV and hybrid fiber coaxial cable (HFC) networks has also increased. The above-described HFC refers to a communication technology in which fiber optic cables and coaxial cables are used in different parts of a network to transport broadband content such as video, data and voice.

However, there is a problem that communication network operation is insufficient to manage systematically as the facility expansion of network increases. In particular, the subscriber branch terminal (TAP-OFF), which accounts for 70% of the total failure, does not accurately grasp the future subscriber demand at the time of initial installation, so there is a shortage of subscriber ports, and there is no device for failure recovery. In addition, there is a problem that the repair maneuver to go directly to the site when the failure occurs to perform a mechanical test.

In order to solve this problem, the technical problem to be achieved by the present invention is to improve the communication quality satisfaction of the subscribed customer.

It also has another purpose to be able to deal with problems occurring on the network more quickly.

In addition, subscriber disconnection and connection can be controlled by bi-directional communication, illegal wire user of cable can be easily checked, and remote control system can be immediately identified and handled by disconnection, short circuit, and noise occurrence location of drop line. There is another purpose.

1 is a block diagram illustrating a subscriber branch terminal and a remote control system capable of monitoring a state of a subscriber end transmission path according to an exemplary embodiment of the present invention.

FIG. 2 is a circuit diagram illustrating in more detail the terminal for the subscriber branch of FIG.

3A and 3B are flowcharts illustrating a remote control method according to an exemplary embodiment of the present invention.

Terminal for the subscriber branch that can monitor the subscriber-end transmission path state according to one feature of the present invention for achieving the above object,

A subscriber terminal device for supplying a data communication signal to a user terminal inlet and receiving a tap port control signal connected to the user terminal from a main control terminal through a network, the terminal serving as a corresponding control signal.

A signal detector detecting whether a drop line connected to the user terminal and a tap port is disconnected or short-circuited;

And a terminal controller configured to receive the disconnection and the short circuit information detected by the signal detector to perform on / off of the tap.

In another aspect of the present invention, there is provided a remote control system using a subscriber branch terminal capable of monitoring a subscriber station transmission path state.

A remote control system for remotely transmitting and controlling a control signal to a user terminal connected through a network,

A subscriber branch switch terminal which detects one or more communication line problems among whether a drop line connected to the user terminal is disconnected or short-circuited, or whether noise occurs in the drop line, thereby turning on and off a tap port; And

At least one control function to turn on and off the connection state of the tap port, and includes a main control terminal for transmitting the on, off control signal of the tap port to the subscriber branch terminal.

According to another aspect of the present invention, there is provided a remote control method using a subscriber branch terminal capable of monitoring a subscriber station transmission path state.

A remote control method using a remote control system for remotely transmitting and controlling a control signal to a user terminal connected through a network,

Causing the subscriber distribution terminal to detect one or more communication line problems, such as disconnection, short circuit, or noise generation of the communication line;

And generating, by the main control terminal, a signal capable of controlling the terminal for the subscriber branch, controlling the tap on and off of the terminal for the subscriber branch using one or more control functions.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a subscriber branch terminal and a remote control system capable of monitoring a state of a subscriber end transmission path according to an exemplary embodiment of the present invention.

As shown in FIG. 1, the remote control system receives a disconnection, a short circuit, and noise occurrence location information of a drop line, which is a data communication path, and generates a control signal for automatically controlling the on / off of a tap port. PC (hereinafter referred to as PC) 100; A radio frequency (RF) modem 200 which modulates a transmission signal from the main control PC 100 and demodulates a signal received through the network 300; It detects disconnection and short circuit occurring in the tap port of the subscriber end, measures and checks the signal noise generated in the drop line of the tap, and automatically turns on and off the tap port according to the control signal from the main control PC 100. A subscriber branch terminal (ITAP: Intelligent addressable TAP off) capable of transmitting data communication signals through the inlet of the cable modem 500 connected to the user PC 600 or the inlet terminal of the set-top box 700 connected to the TV 800. 400.

The main control PC 100 may include a terminal control module 110 for a subscriber branch, which is a program for checking a problem occurring in the terminal 400 for a subscriber branch; And a control result database 120 that stores the remote control result information performed by the main control PC 100 and the terminal information for at least one subscriber branch.

The subscriber distribution terminal control module 110 and the control result database 120 may be independent applications stored in the main control PC 100, or may be a storage medium in which application programs for performing respective functions are stored. The invention is not limited only to the examples.

The subscriber branch terminal 400 includes a signal distribution unit 410 for distributing test signals and tap port on and off control signals from the main control PC 100; A filtering unit 420 for selecting only signals of a specific frequency band; A modulator 430 which modulates a transmission signal to transmit detected disconnection, short circuit, and noise generation information to the main control PC 100; A data detector 440 for detecting data included in a test and control signal transmitted from the main control PC 100; A noise detector 450 which automatically detects a noise signal generated in a communication line; A terminal controller 460 which recognizes disconnection, short circuit, and noise related to a drop line, receives an on / off control signal of a tap port, turns on and off taps of a corresponding port, and generates a terminal operation control signal; The signal detection unit 470 detects disconnection and short circuit occurring in each tap.

FIG. 2 is a circuit diagram illustrating in more detail the terminal for the subscriber branch of FIG.

The signal distributor 410 includes one or more distributors, and each distributor distributes an operation control signal to the filter 420, the noise detector 450, and the signal detector 470.

The filtering unit 420 includes one or more band pass filters (BPFs), receives and filters the signals distributed by the signal distribution unit 410, and transmits the signals to the data detection unit 440. In operation 430, the modulated signal transmitted to the main control PC 100 is filtered.

The modulator 430 FM modulates the signal transmitted from the terminal controller 460 to the main control PC 100.

The data detector 440 receives the signal filtered by the filter 420, detects data included in the RF signal, and transfers the noise data detected by the noise detector 450 to the terminal controller 460.

The noise detector 450 detects signal noise transmitted through the signal detector 470.

The terminal controller 460 controls tap port on and off, and controls tap port on and off, detects and confirms disconnection, short circuit, and noise occurrence in the drop line, and checks disconnection, short circuit, and noise occurrence data of the identified drop line. It sends out to the main control PC100.

The signal detector 470 includes a resistor R1 and R2 for distributing power and capacitors C1 and C2 for blocking a DC component and supplies a power supply VCC to the IC 472; An integrated circuit (472) for receiving a control signal of a corresponding tap port generated by detecting a change in voltage applied to the resistors R3 and R4 from the CPI and turning on and off the corresponding tap port; And a detection module 473 having resistors R3 and R4 for detecting disconnection and short circuit and a capacitor C3 for passing a signal for supplying a data signal to the subscriber terminal.

Hereinafter, with reference to the accompanying drawings, the operation of a subscriber branch terminal and a remote control system using the same according to an embodiment of the present invention will be described in detail.

In the definition of the term applied to the embodiment of the present invention, the drop line (drop line) refers to the communication line between the subscriber terminal 400 and the cable modem 500, the disconnection, short circuit, signal in the drop line Noise may occur. In the subscriber branch terminal 400, a tap port is opened by an IC performing a switching operation in response to receiving a control signal.

3A and 3B are flowcharts illustrating a remote control method according to an exemplary embodiment of the present invention.

The terminal controller 460 checks for disconnection, short circuit, noise generation, and normal operation for a specific period while transferring data transmitted through the network to the cable modem 500 inlet terminal of the user PC 600 (S100). At this time, the disconnection and the short circuit are checked by using a voltage drop method, which is performed by detecting a voltage change caused by a change in the resistances R3 and R4. That is, since the sensed voltage rises when disconnected and the sensed voltage decreases when it is a short circuit or a conducting wire (the act of sharing a communication line without permission), the terminal controller 460 is normal when the checked voltage is 3V (Volt). Check the status within each reference voltage range based on the condition of use, disconnection at 5V and short circuit at 0V. In the noise check, the noise detector 450 detects low-frequency noise and checks noise generation in a corresponding drop line. In addition, the terminal controller 460 checks whether each tap port is used and transmits the check information to the main control PC 100.

When the designated time set by the administrator is reached, the subscriber branch control module 110 of the main control PC 100 calls one or more subscriber branch terminal 400 information stored in the control result database 120 to call the corresponding subscriber. A test signal of the branch terminal 400 is generated (S110). At this time, if the manager wants to generate a test signal randomly at a specific time, the manager may generate a signal by operating the terminal control module 110 for the subscriber branch, but the present invention is not limited only to the embodiment.

The main control PC 100 transmits a test signal to the RF modem 200, and the RF modem 200 modulates the received test signal and transmits the test signal to the subscriber branch terminal 400 through the network 300. do.

The signal distributor 410 distributes the received signal to the filtering unit 420 and the signal detector 470 through the respective distributors. The filtering unit 420 filters the received test signal and transmits the test signal to the detector, and the detector detects data included in the received signal and delivers the data to the CPI.

The CPI of the terminal controller 460 checks the received test signal (S120), and checks whether the currently received test signal is a test signal of the corresponding address (S130). The terminal controller 460 checks the address 140 in response to the address test signal and receives the test signal.

CPI requests the signal detection unit 470 to request eight tap port information individually through the input terminal, and calls the presence or absence of abnormality for each port (S150).

The signal detector 470 transmits whether the voltage distributed to the resistors R3 and R4 is changed to the CPI of the terminal controller 460, and the CPI of the terminal controller 460 receives the voltage variation result from the signal detector 470. By determining whether disconnection or short circuit of the corresponding drop line (S160).

CPI receives the check signal from each IC (IC 1 ~ IC 8) and transmits eight tap port information to the modulator 430, and the modulator 430 performs FM modulation to provide the filtering unit 420. The data is sent to the main control PC 100 via S170.

In the address test signal check step (S130), if the address of the received test signal is not correct, the terminal controller 460 passes the received test signal (S180).

Upon receiving the demodulated signal via the RF modem 200, the terminal control module 110 for subscriber branch of the main control PC 100 receives tap information (S190), and checks whether there is an abnormal tap port port (S200). . The manager selects whether the tap port is on or off via the subscriber branch terminal control module 110 (S210). In this case, the administrator may forcibly select on or off of the tap port and control the individual or all tap ports on or off for one or more tap ports.

The subscriber branch terminal control module 110 has an automatic function of opening the corresponding tap port only when the communication line is in normal use, and automatically opens the tap port when disconnection or short circuit occurs, and then the line is restored. There is an automatic recovery function that automatically opens, and a forced on and off function to control individual and total tap on and off.

The forced on / off function has priority over the automatic control function of the tap control function in the main control PC 100, and the tap automatic control function must be reset in the terminal control module 120 for the subscriber branch of the main control PC 100. Return to function In addition, the tap automatically opened at the time of disconnection or short circuit can also be turned on or off by the control command of the terminal control module 120 for the subscriber branch. However, even if the line is in the off state by force, the port is not opened and only the port needs to be reset to return to the tap automatic function. The reason for this is that if you reset all ports, even the tabs that are forced off due to administrative fee collection or other problems are automatically restored.

The subscriber branch terminal control module 110 checks whether the manager selects the tap port on and off (S220), and generates a tap port on and off control signal when the manager selects the tap port on and off control (S230). Transmit to subscriber branch terminal 400.

The CPI of the terminal controller 460 checks the delivery address of the reception control signal (S240), and checks whether the received control signal is a priority release request signal (S250).

When the received control signal is the priority release request signal, the CPI of the terminal controller 460 automatically resets the corresponding IC of the signal detector 470 through the tap port on and off control terminals (S260).

If the received control signal is an on or off signal of an individual or all tap ports other than the priority release request signal, the CPI turns on or off the individual or all tap ports (S270).

After the automatic reset step (S260) is completed, the IC transmits the eight tap port information to CPI (S280), CPI is the terminal for the subscriber branch of the main control PC 100 to the control result information collected from each IC Transmission to the control module 110 (S290).

The subscriber branch terminal control module 110 receives the control result information (S300) and stores the control processing result information in the control result database 120 (S310).

The embodiment of the present invention is only one embodiment, and many variations and modifications may be made to the configuration of the circuit without departing from the gist of the present invention, and the present invention is not limited to the embodiment.

As described above, the subscriber branch terminal, a remote control system using the same, and a remote control method for monitoring the subscriber station transmission path state of the present invention increase the communication quality satisfaction of the subscribed customer.

In addition, from the technical point of view, it is possible to control the disconnection and connection of the subscriber by two-way communication, to easily identify the illegal wire user of the cable, to check the disconnection and short circuit through the voltage drop method, and to determine the location of the noise occurrence Check immediately for prompt follow-up.

In addition, in terms of economics, it is possible to reduce labor costs by reducing travel of the trouble diagnoser, reduce debts due to overdue subscribers, and incorporate illegal wire users into paying subscribers.

In addition, in terms of installing and maintaining the network, the network quality can be optimally installed and maintained.

In addition, from the consumer side, it can be provided with high quality network status due to rapid after-sales processing, and can be supplied with network signal only at the time of consumer demand.

Claims (15)

In the subscriber terminal device for supplying a data communication signal to the user terminal incoming, and receiving a tap port control signal connected to the user terminal from the main control terminal via a network, A signal detector detecting whether a drop line connected to the user terminal and a tap port is disconnected or short-circuited; And a terminal control unit configured to receive disconnection and short circuit information detected by the signal detection unit and perform on / off of the tap. In claim 1, The apparatus further includes a noise detector for detecting a noise signal generated in the drop line, wherein the terminal controller receives the noise generation information detected by the noise detector to monitor a subscriber station transmission path state controlling the on / off of the tap port. Terminal for the subscriber branch that can be. In claim 1, A signal distribution unit for distributing a data communication signal transmitted through the network and a control signal from the main control terminal to the signal detection unit and the terminal control unit; A filtering unit filtering the signal distributed by the signal distributor; A data detector which detects data included in the signal filtered by the filtering unit and transmits the data to the terminal controller; And A modulator for modulating tab information to be transmitted to the main controller from the terminal controller Subscriber terminal for monitoring the subscriber-end transmission path further comprising a. The method of claim 1, wherein the signal detection unit A power supply module for supplying operating power; First and second resistors are connected in series, the first resistor is connected to the terminal controller, and the second resistor is connected to the drop line, thereby disconnection through a change in voltage applied to the first and second resistors. Or a detection module for detecting whether a short circuit or a conducting wire; An integrated circuit module which transmits a voltage change according to a resistance change from the detection module to the terminal controller and turns on or off a signal applied to the tap according to a control signal from the main control terminal. Subscriber branch terminal for monitoring the status of the subscriber-end transmission path comprising a. In the remote control system for controlling the remote control by transmitting a control signal to a user terminal connected through a network, A subscriber branch switch terminal which detects one or more communication line problems among whether a drop line connected to the user terminal is disconnected or short-circuited, or whether noise occurs in the drop line, thereby turning on and off a tap port; And One or more control functions for turning on and off the connection state of the tap port, the main control terminal for transmitting the on and off control signal of the tap port to the subscriber branch terminal Remote control system using a subscriber terminal device for monitoring the subscriber station transmission path state comprising a. The terminal of claim 5, wherein the subscriber branch terminal is provided. A signal detector detecting whether the drop line connected to the user terminal is disconnected, conductive, or short-circuited; A noise detector for detecting a noise signal generated at a drop line of the tap; Terminal control unit for receiving the disconnection or short-circuit information detected by the signal detection unit and the noise generation information detected by the noise detection unit to perform the tap on, off Remote control system using a subscriber terminal device for monitoring the subscriber station transmission path state comprising a. In claim 6, A signal distribution unit for distributing a data communication signal transmitted through the network and a control signal from the main control terminal to the signal detection unit and the terminal control unit; A filtering unit filtering the signal distributed by the signal distributor; A data detector which detects data included in the signal filtered by the filtering unit and transmits the data to the terminal controller; And A modulator for modulating tab information to be transmitted to the main controller from the terminal controller Remote control system using a subscriber branch terminal for monitoring the status of the subscriber-end transmission path further comprising. The method of claim 6, wherein the signal detection unit A power supply module for supplying operating power; First and second resistors are connected in series, the first resistor is connected to the terminal controller, and the second resistor is connected to the tap, and a disconnection or disconnection is performed through a change in voltage applied to the first and second resistors. A detection module detecting whether a wire or a short circuit is detected; An integrated circuit module which transmits a voltage change according to a resistance change from the detection module to the terminal controller and turns on and off a signal applied to the tap according to a control signal from the main control terminal. Remote control system using a subscriber branch terminal for monitoring the status of the subscriber-end transmission path comprising a. The method of claim 5, wherein the main control terminal Remote control system using a subscriber branch terminal for monitoring the status of the subscriber-end transmission path, characterized in that it comprises an interface which is an application program for performing the control function. 10. The method of claim 5 or 9, wherein the control function is Tap automatic function to open the corresponding port only when the communication line is in normal use; Automatic recovery function to automatically open when the communication line is restored after opening the corresponding port automatically in case of disconnection or short circuit; Forced on and off capability to control individual or global tap on and off Remote control system using a subscriber branch terminal for monitoring the status of the subscriber-end transmission path, characterized in that. In a remote control method using a remote control system for remotely transmitting and controlling a control signal to a user terminal connected through a network, Causing the subscriber terminal terminal to detect one or more communication line problems among the disconnection or short circuit of the communication line or noise generation; Generating a signal for the main control terminal to control the subscriber branch terminal, and controlling tap on and off of the subscriber branch terminal with at least one control function; Remote control method using a subscriber terminal device for monitoring the status of the subscriber-end transmission path comprising a. The method of claim 11, wherein said detecting step Disconnecting a corresponding port when a disconnection or short circuit occurs in the communication line, and transmitting a disconnection or short circuit message to the main control terminal; Transmitting a noise generation message of a corresponding communication line to the main control terminal when a noise signal is generated in the communication line; And Checking the operation status of the corresponding tab port to transmit a message to the main control terminal Remote control method using a subscriber terminal device for monitoring the status of the subscriber-end transmission path comprising a. 12. The method of claim 11 wherein said controlling step Checking the forwarding address of the received signal when the main control terminal sends the terminal test control signal for the subscriber branch; Transmitting the operation status information of the tap port to the main control terminal when the corresponding address is confirmed; Generating, by the main control terminal, a signal corresponding to the control function and transmitting the generated signal to the subscriber branch terminal; And Causing the subscriber branch terminal to tap on and off according to a control signal corresponding to the control function; Remote control method using a subscriber terminal device for monitoring the status of the subscriber-end transmission path comprising a. The method of claim 13, wherein performing the tap on and off Detecting, by the subscriber branch terminal, whether the received control signal is a priority release request signal and performing an automatic reset; If the received control signal is not the priority release request signal, causing the subscriber branch terminal to connect on or off for individual or all taps; Transmitting a control result to the main control terminal; Remote control method using a subscriber terminal device for monitoring the status of the subscriber-end transmission path comprising a. The method according to claim 11 or 13, wherein the control function is Tap automatic function to open the corresponding port only when the communication line is in normal use; Automatic recovery function to automatically open when the communication line is restored after opening the corresponding port automatically in case of disconnection or short circuit; Forced on and off capability to control individual or global tap on and off Remote control method using a subscriber branch terminal for monitoring the status of the subscriber-end transmission path, characterized in that.