KR19980069430A - Board remote monitoring method and device in ADSL transmission system - Google Patents

Abstract

The present disclosure relates to a method and apparatus for remotely monitoring a board using a communication path and a communication protocol between respective functional boards in an ADSL transmission system. The present invention connects a plurality of ATU-C and the corresponding communication board of the ATU-R in turn through the SPI (Serial Peripheral Interface) to the interface card, and the interface card is selected when the desired board monitoring is selected through the terminal It is configured to deliver monitoring commands that the board can recognize, and display the corresponding contents on the terminal. Therefore, the present invention provides the effect of remotely monitoring the respective functional boards of the system to make the system maintenance more quickly and simply.

Description

Board remote monitoring method and device in ADSL transmission system

The present invention relates to the monitoring of each board status in the ADSL transmission system, and more specifically, to a board in an ADSL transmission system that enables remote monitoring of a board independent of each other through one interface. It relates to a remote monitoring method and apparatus.

In general, in order to make a telephone call between users, a communication connection must be made between a user and a telephone station and between telephone stations as shown in FIG. The telephone stations are usually connected by a core network 14.

FIG. 1 shows a case where an ADSL transmission system is used as an access network between a user and a telephone station. Asymmetric Digital Subscriber Line (ADSL) transmission system provides high-speed communication between user and telephone station, and interface card for operation and maintenance (OAM) function and other functions of exchange equipment in the system. (11), an ATU-C 12 which is a communication board located at a telephone station, and an ATU-R 13 which is a communication board located at a subscriber side. Here, the ATU-C 12 and the ATU-R 13 are connected by a telephone line. In addition, an A1 interface is provided between the user and the ATU-R 13, and an A4 interface is provided between the exchange and the ATU-C 12. Each of A1 and A4 are interfaces defined in the communication protocol of the ADSL transmission system.

In the above access network, the user makes a call and communicates with the ATU-C 12 of the telephone station to which the user is subscribed through the ATU-R 13. The ATU-C 12 communicates and connects the core network 14 with the telephone station to which the other party is subscribed, and the other telephone station communicates with the subscriber of the telephone number dialed by the user so that the user can talk.

On the other hand, in the system consisting of multiple functional boards (or cards) as described above, each functional board has an interface and a software function for status monitoring for initial development or post development development. Thus, it interfaces directly with the functional boards that are conventionally required for such monitoring use. That is, referring to FIG. 1, terminals 11, 12 ', and 13' are connected to the interface card 11, the ATU-C 12, and the ATU-R 13, respectively, and terminals connected to necessary function boards. (11 ', 12', 13 ') performs the monitoring function of the board through RS-232C to check the current status of the board.

However, in the related art, each developer can use the monitoring function by using their own terminal when developing each function board, but in terms of maintenance after actual development, visit the subscriber side to check the function of ATU-R. There are some unreasonable considerations.

Accordingly, an object of the present invention is to solve the above-mentioned problems by using the interface located in the telephone company to enable the function review to a predetermined function board located at a remote location to make the maintenance of the whole system more quickly and easily. In providing.

Another object of the present invention is to provide an apparatus for implementing a board remote monitoring method in the above-described ADSL transmission system in hardware.

1 is a block diagram showing an access network using a general ADSL transmission system;

2 is a block diagram showing a board remote monitoring apparatus in an ADSL transmission system according to a preferred embodiment of the present invention;

3 is a conceptual diagram showing the overall signal flow of the apparatus of FIG.

Explanation of symbols for main parts of the drawings

21: terminal 22: interface card

23: decoder 24: communication board (ATU-C0 to ATU-Cn)

25: Communication board (ATU-R0 ~ ATU-Rn)

The board remote monitoring method in the ADSL transmission system of the present invention for achieving the above objects, in each functional board monitoring method in the ADSL transmission system, (1) translating the input command, (2) the If a translation result input command is for monitoring the function boards, selecting one function board for monitoring among the function boards, and (3) transmitting a command input to the selected function board, and from the function board. Receiving a result and displaying the result.

The board remote monitoring apparatus in the ADSL transmission system of the present invention for achieving another object of the present invention, in each functional board monitoring apparatus in the ADSL transmission system, inputs a command for monitoring the function board, and as a result A single terminal for receiving and displaying a screen, and is connected between the terminal and the ATU-C, the interface to receive the results through its own monitoring results or ATU-C according to the command input from the terminal to output the terminal to the terminal When a command of the terminal is input through a card and the interface card, the ATU-C receives the result through its own monitoring result or ATU-R according to the command and outputs the result to the interface card through the ATU-C. When the command of the terminal is input, ATU-R for outputting its monitoring results to the ATU-C according to the command.

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

2 is a block diagram showing a board remote monitoring apparatus in the ADSL transmission system according to the present invention. As shown, the apparatus of the present invention includes a single terminal 21 and an interface card 22 connected to the terminal 21 to perform an interface between the other functional boards and the terminal 21. The terminal 21 and the interface card 22 are connected by RS-232C. The interface card 22 is connected to a plurality of ATU-C 24 through the SPI (Serial Peripheral Interface), the ATU-C (24) is correspondingly connected to the ATU-R (25). The interface card 22 is also configured to be connected with a decoder 23 for selecting one of the plurality of ATU-Cs 24.

The operation of the board remote monitoring apparatus in the ADSL transmission system of the present invention configured as described above will be described in more detail with reference to FIG. 3.

3 is a conceptual diagram illustrating the overall signal flow of the apparatus of FIG. 2.

First, when a specific command is input from the terminal 21 connected to the interface card 22 side, the interface card 22 displays the current input on the terminal 21 through an echo function. In this state, the interface card 22 detects that a carriage return (CR) has been input from the terminal 21, and responds to the line feed to change the line on the screen of the terminal 21. Line feed; LF). The interface card 22 translates a command input from the terminal 21 through RS-232C to select a board to be monitored among the boards in the system. The interface card 22 performs its own monitoring if the currently input command is to use the monitoring function of the interface card 22 and transmits the result directly to the terminal 21.

When using the monitoring function of the ATU-C 24, the interface card 22 converts the input command into a format that can be recognized by the ATU-C 24, and then converts the received command into an ATU-C through SPI. Send to C (24). At this time, the decoder 23 selects one of a plurality of ATU-C (0, n) 24 according to the translation result of the interface card 22. The user-side command inputted from this time displays the current input on the terminal 21 by using an echo function in the interface card 22 and transmits the input to the ATU-C 24. The ATU-C selected by the decoder 23 among the plurality of ATU-C (0, n) 24 performs its own monitoring when the monitoring is requested from the interface card 22 and interfaces the result. Transfer to card 22. As shown in FIG. 3, the ATU-C 24 responds to the request from the interface card 22 by a predetermined time α for a predetermined response time. The interface card 22 receives the monitoring result from the ATU-C 24, displays it on the terminal 21, and simultaneously transmits an acknowledgment signal (ACK) to the ATU-C 24. The interface card 22 transmits a user command to the ATU-C 24, and if it does not receive a result for a predetermined time (response time + α), determines that the monitoring fails and switches to its own monitoring function. If the input command of the terminal 21 is to exit the current mode, that is, the ATU-C 24 monitoring function, the interface card 22 does not transmit the command to the ATU-C 24 and does not send the current interface card. (22) It displays on the terminal 21 that the monitoring function is in progress and switches to the own monitoring function.

On the other hand, when using the monitoring function of the ATU-R (25), the interface card 22 converts the input command to be recognized by the ATU-C (24) and transmitted to the ATU-R (25) and then through the SPI Transmit to ATU-C 24. At this time, the decoder 23 selects one of a plurality of ATU-C (0, n) 24 according to the translation result of the interface card 22. The selected ATU-C 24 receives the received command and sends it directly to the corresponding ATU-R 25 unless it processes it. The ATU-C 24 and the ATU-R 25 communicate using a specific protocol by the ADSL communication channel. The user-side command inputted from this time displays the current input on the terminal 21 using the echo function in the interface card 22 and transmits the input to the ATU-C 24. 3, when the monitoring request command is input through the ATU-C 24 of the plurality of ATU-R (0, n) 25, the ATU-R 25 performs its own monitoring. And send the result. When the result of the command from the ATU-R 25 is received by the ATU-C 24, the ATU-C 24 sends it directly to the interface card 22, and the interface card 22 is the ATU-C 24. If the result of the command is received from the terminal 21, it is displayed again on the screen. If a result is not received for a predetermined time after the user command is transmitted to the ATU-C 24, it is determined that the monitoring failure for the ATU-R 25 and the interface card 22 switches to its own monitoring function. If the input command of the terminal 21 is to exit the current mode, i.e., the ATU-R 25 monitoring function, the interface card 22 does not transmit the command to the ATU-C 24 but is currently present. The screen is displayed on the terminal 21 indicating that the monitoring function is in progress and the monitoring function is switched to its own monitoring function.

This allows the terminal 21 to be connected to the interface card 22, and by connecting a plurality of functional boards to the interface card 22, so that the status can be checked by remote monitoring through communication with each other. Of course, you can also remotely monitor ATU-R by connecting the terminal directly to ATU-C without an interface card.

As described above, the present invention relates to a method and apparatus for remotely monitoring a board in an ADSL transmission system, and to quickly and smoothly maintain a board state by remotely monitoring a board state without a direct visit for maintenance of functional boards after system development. Has the effect of performing.

Claims (11)

In each function board monitoring method in the ADSL transmission system, (1) translating the inputted command; (2) selecting one function board for monitoring among the function boards if the translation result input command is for monitoring the function boards; And (3) transmitting a command input to the selected function board, receiving a result from the function board, and displaying the screen. The method of claim 1, wherein the step (1) includes displaying an input command through an echo function. The method of claim 1, wherein in the step (3), if the result of the command input from the selected function board is not received for a predetermined time, it is determined that the monitoring fails. In each functional board monitoring device in the ADSL transmission system, A single terminal for inputting a command for monitoring the function board and receiving a result thereof and displaying the screen; An interface card connected between the terminal and the ATU-C and receiving a result through its own monitoring result or the ATU-C according to a command input from the terminal and outputting the result to the terminal; An ATU-C that receives a result from its own monitoring result or an ATU-R according to the command when the command of the terminal is input through the interface card and outputs the result to the interface card; And And a command of the terminal via the ATU-C, the remote monitoring device including an ATU-R outputting its monitoring result to the ATU-C according to the command. 5. The remote monitoring apparatus according to claim 4, further comprising an RS-232C for interconnection between said interface card and said terminal. The remote monitoring apparatus according to claim 4 or 5, further comprising a Serial Peripheral Interface (SPI) for connecting the plurality of ATU-Cs to the interface card. 7. The method of claim 6, wherein the interface card converts and outputs the command so that the ATU-C can recognize the input command of the terminal for monitoring the ATU-C, and the input command outputs the ATU-R. And if it is for monitoring, converts the command so that the ATU-C recognizes and transmits the command to the ATU-R. 8. The method of claim 7, wherein the interface card determines that the monitoring failure is not received if a result of the input command is not received from the ATU-C for a predetermined time, switch to its own monitoring, characterized in that to display the screen on the terminal Remote monitoring device. The terminal of claim 6, wherein the interface card switches to its own monitoring if the input command of the terminal is for exiting the monitoring of the ATU-C to the ATU-R, and displays it on the terminal. Remote monitoring device. The remote monitoring apparatus according to claim 8, wherein the interface card further comprises a decoder for selecting one of the plurality of ATU-Cs corresponding to a target to be monitored by an input command of the terminal. 5. The remote monitoring apparatus according to claim 4, wherein the terminal is directly connected to the ATU-C.