KR100818295B1 - Remote Power Control Method and Apparatus in Distributed Communication System - Google Patents

Abstract

The present invention provides a remote power supply in which a multiplexed control system board remotely controls power of the remaining boards in a distributed communication system having a multiplexed control system and maintains power of each board even when switching between the multiplexed control system boards. It relates to a control method and an apparatus therefor. Remote power control apparatus according to the present invention comprises a plurality of remote power control target board; A plurality of control system boards that collectively control the entire system and transmit remote power control signals for each of the plurality of remote power control target boards; And a back board receiving a remote power control signal transmitted from each of the plurality of control system boards and supplying power to a corresponding remote power control target board, wherein the back board includes remote powers transmitted from the plurality of control system boards. A pull-up logic unit generating a logic value to supply power to the corresponding remote power control target board when the control signal is not in the tri state; And a power applying logic unit configured to apply power to the corresponding remote power control target board in response to a logic value generated by the pull-up logic unit.

Control board, remote power, delay count, back board

Description

Remote power control method in distributed communication system and apparatus for same {Remote Power Control Method and Apparatus in Distributed Communication System}

1 is a block diagram schematically illustrating a distributed communication system to which a remote power control function is applied according to an exemplary embodiment of the present invention.

2 is a flowchart schematically illustrating a process of performing a remote power control operation of a multiplexed control system board according to another embodiment of the present invention.

3 is a flowchart schematically illustrating a process of remotely controlling power so that the multiplexed control system board is continuously applied without interrupting power supply while the multiplexed control system board is transferred. Referring to FIG.

 Explanation of symbols on the main parts of the drawings

101, 106, 119: control board

102, 107, 120: Multiplexed State Store Register

103, 108, 121: Unmount / mount information storage register of remote power control target board

104, 109, 122: Remote Power Control Command Register

105, 110, 123: Tri-State Control Logic

111: back board 117, 118: remote power control target board

112, 113: pull-up logic 114: delay count logic

115, 116: Power up logic

The present invention relates to remote power control in a distributed communication system, and in particular, in a distributed communication system, a plurality of control system boards that collectively control and control the power of the remaining boards in a plurality of control system boards, and a multiplexing control system board The present invention relates to a remote power control method and a device therefor in a distributed communication system that maintains power of each board even when performing.

In a communication system that requires a large capacity, a single physical board cannot perform all functions, but functionally divided into several boards. Usually, a control system board that manages and controls the entire system, a subscriber board that connects subscribers or relays of a certain capacity, a switch board that switches data between subscriber boards, or an alarm board that collects alarms for each board, and is synchronized across the system. It consists of a plurality of functionally distributed boards, such as a manipulator clock board that provides the clock.

In addition, a distributed system is often configured as multiplexing by applying high availability or fault tolerance. However, the control system is often multiplexed because it is too expensive to multiplex the entire system and inefficient in terms of cost / performance.

In traditional communication systems, all boards, including the control board, are powered manually using their own power switches. Boards with automatic power control also have no application in systems with multiplexed control systems. In addition, the control board does not support the ability to selectively power on or short the boards.

Meanwhile, a device for remotely controlling power on / off of a communication device is disclosed in Korean Patent Registration No. 0327988 (2002.02.27). In the case of the preceding patent, by installing a cognitive pin capable of pressing the power key of the digital terminal in a power key recognition circuit connected to the power key, the power of the digital terminal is remotely turned on / off according to the power key control signal of the control board. It provides a device for controlling. However, the prior patent does not consider multiplexing a control board that performs power control.

In addition, a method and apparatus for remotely controlling a power source in a distributed communication system having a redundant control system board of the present inventors are disclosed in Korean Patent Registration No. 0533135 (Nov. 25, 2005). The prior patent discloses a method and apparatus for controlling the power of the remaining boards in a distributed control system board without using its own power switch. However, in the case of the above patent, since the pull-up logic unit, the delay count logic unit, and the power supply logic unit exist for each remote power control target board, the components required for the logic are designed for each remote power control target board. And because it has to be manufactured, there was a problem that the unit cost, complexity of the board increases and mass production falls. In addition, there is a problem in that the pull-up logic unit, the delay count logic unit, and the power supply logic unit need to be supplied with a separate power source in order to always operate.

The present invention has been proposed to solve the above problems, and the power of the remaining boards, except for the control system board that manages and controls the entire system in the communication system remotely from the control system board without using its own power switch and consists of multiplexing It is an object of the present invention to provide a remote power control device and method in a distributed communication system that can continuously maintain the power of each board even when the control system board is switched.

Remote power control device in a distributed communication system according to the present invention for achieving the above object,

A plurality of remote power control target boards;

A plurality of control system boards that collectively control the entire system and transmit remote power control signals for each of the plurality of remote power control target boards; And,
It includes a back board receiving a remote power control signal transmitted from each of the plurality of control system board to supply power to the corresponding remote power control target board,
The back board,

delete

A pull-up logic unit configured to generate a logic value to supply power to the corresponding remote power control target board if the remote power control signals transmitted from the plurality of control system boards are not in a tri-state state; And,

And a power applying logic unit configured to apply power to the corresponding remote power control target board in response to a logic value generated by the pull-up logic unit.

In this case, the back board is located between the pull-up logic unit and the power-applying logic unit to delay a time at which a logic value generated by the pull-up logic unit is transferred to the power-applying logic unit by a predetermined time. It may further include a delay count logic to increase the count by.

At this time, each of the plurality of control system board

A first register unit which stores its multiplexing state information;

A second register unit configured to store detachment / mounting information of the plurality of remote power control target boards;

A third register unit for identifying a specific remote power control target to which power is applied based on the removal / mounting information of the remote power control target board and transmitting a remote power control signal to the specific remote power control target board; And,
Including a tri-state control logic unit for transmitting the remote power control signal transmitted from the third register unit to the identified remote power control target board or converts to a tri state state with reference to the multiplexing state information stored in the first register unit. It is preferred to be configured.

delete

In addition, a remote power control method in a distributed communication system for achieving the above object,

Setting one board selected from a plurality of control system boards as an active board at system booting, and determining the other board as a standby board;

Collecting the thread / separation information for each of the remote power control target boards, and determining a remote power control target board to which power is applied based on the collected thread / hernia information;

Creating a remote power control signal for the remote power control target board;

The control system board determined as the active board sends the remote power control signal to the back board as it is, and the control system board determined as the standby board converts the remote power control signal to a tri-state state and then sends it to the back board;

Generating a logic value in the backboard receiving the remote power control signal to apply power to the corresponding remote power control target board only when the signal is not in a tri-state state; And,

And applying power to the corresponding remote power control target board by the generated logic value.

At this time, between the step of generating a logic value and the step of applying the power, the step of performing a count, delaying the logic value generated in the step of generating the logic value for a predetermined time and then applying the power It may further include.

In the following, with reference to Figures 1 to 3 attached to a preferred embodiment of the present invention will be described in more detail.

1 is a block diagram schematically illustrating a distributed communication system to which a remote power control function is applied according to an exemplary embodiment of the present invention, and FIGS. 2 and 3 are diagrams of a multiplexed control system board according to another embodiment of the present invention. This is a flow chart schematically implementing a remote power control method.

First, referring to FIG. 1, a distributed communication system to which the present invention is applied includes a multiplexed control board, that is, a control board 1 (101), a control board 2 (106), a control board 3 (119), and one back board (111). ), And a plurality of remote power control target boards, that is, a remote power control target board 1 117 and a remote power control target board 2 118. At this time, the number of the control system board 101, 106, 119 and the remote power control target board 117, 118 in the Figure 3 is shown as three and two of the multiplexed control system board according to an embodiment of the present invention It is intended to facilitate the description of the remote power control device, and is not intended to specify the desired number of control system boards and remote power control target boards applicable to the present invention. Therefore, in realizing the remote power control apparatus of the multiplexed control system board according to the present invention, the number of the control system board and the remote power control target board may be selected according to the judgment of those skilled in the art having ordinary knowledge in the technical field to which the present invention belongs. Can be.

The control system boards 101, 106, and 119 are registers 102, 107, and 120 that store control system board multiplexing states, and registers 103 and 108 for recognizing mounting and dismounting of the remote power control target boards 117 and 118. 121, command registers 104, 109 and 122 for applying power to the remote power control target boards 117 and 118, and control logics 105, 110 and 123 for controlling the tristate.

The back board 111 may include pull-up logic 112 and 113 for continuously supplying power to the remote power control target boards 117 and 118 even when the control system boards 101, 106 and 119 of the multiplex structure are transferred. And a delay count logic 114 and power supply logics 115 and 116 for supplying power to the target boards 117 and 118 according to the remote power control signal from the active control system board. Here, in the preferred embodiment applicable to the present invention, the pull-up logic 112 and 113 and the power applying logic 115 and 116 may be configured as many as the number of the remote power control target boards 117 and 118.

In this case, the pull-up logic 112 and 113 and the delay count logic 114 perform a function of continuously supplying power to the remote power control target board even when the multiplexed control system boards 101, 106, and 119 are transferred. do.

Hereinafter, a method of controlling a remote power supply in a communication system in which a control system board for collectively and controlling the entire system is configured with multiplexing will be described in detail with reference to FIGS.

FIG. 2 is a flowchart schematically illustrating a process of performing a remote power control operation by a multiplexed control system board according to another embodiment of the present invention, and FIG. 3 is a diagram illustrating switching of a multiplexed control system board according to another embodiment of the present invention. Is a flowchart schematically illustrating a process of remotely controlling power so that power is continuously applied to a remote power control target board without interruption of power supply.

First, one of the multiplexed control system boards 101, 106, and 119 is determined as an active board (S202). Active boards perform generalization and control throughout the system, and in particular, remote power control for multiple corresponding boards. In this case, the standby board makes the remote power control command register of the standby board the same as the remote power control command register of the active board through the backup channel in case the control system board is switched (S204).

In order to clearly describe the remote power supply control operation according to the present invention, it is assumed that the control system board 1 (101) is an active board and the control system boards 2 and 3 (106, 119) are standby boards in FIG. The control system board 1 101, which is an active board, stores an 'active' flag in the multiplexed state storage register 102. At this time, the tri-state control logic 105 of the control system board 1 (101) does not perform tri-state control because the control system board 1 (101) is an active board, and thus the remote power control signal of the remote power control command register (104). Is transmitted to the back board 111 as it is without conversion.

The control system board 2 106 and the control system board 3 119 store a 'standby' flag in the multiplexed state storage registers 107 and 120, respectively. The tri-state control logics 110 and 123 of the control board 2 106 and the control board 3 119, which are standby boards, perform tri-state control because the control board 2 106 and the control board 3 119 are standby boards. Therefore, the remote power control signal of the remote power control command register 109 is converted to the tri state state and then transmitted to the back board 111.

The remote power control target boards 117 and 118 transfer the board / mounting information of the board to the detachment / mounting information storage registers 103, 108 and 121 of the remote power control target board in the control system boards 101, 106 and 119. The control system boards 101, 106, and 119 collect thread / heral information of each of the remote power control target boards 117 and 118 (S206). At this time, the control board 1 101, which is an active board, grasps the collected removal / mounting information and determines which board to apply power to. The user can arbitrarily decide the target board to be powered on, and can control power only to the target board mounted by default. As such, the control system board 1 101 transmits a remote power control signal to the corresponding remote power control target board based on the collected / unmounted information (S208). If the target board under remote power control is dismounted, the board is disconnected by referring to the seal / mounting information stored in the detachment / mounting information storage register 103 of the remote power control target board in the control system board 1 101 that is the active board. The power control is not performed for the remote power control target board.

The reason that the tri-state control logic 105, 110, 123 is present in the control system board (101, 106, 119) is to prevent the collision of the remote power control signal output from the position of the control system board.

When the remote power control signal is input from the control system boards 101, 106, and 119, the back board 111 passes through a pull-up logic 112 and 113 and a delay count logic 114 to supply power logic 115 and 116. ) Operates to apply power to the target boards 117 and 118 (S210). In this case, it is preferable that the pull-up logic 112 and 113 and the power applying logic 115 and 116 exist as many as the number of the remote power control target boards 117 and 118.

If the remote power control signal transmitted from the control system board is "0", the power is applied to the corresponding remote power control target boards 117 and 118, and if it is "1", the power is preferably short-circuited. However, the present invention is not limited thereto and may be designed in reverse.

If switching is required in the multiplexed control system boards 101, 106, and 119 (S302), the active board is changed to a standby board, and one of the standby boards is changed to an active board, so that the switching of the control board is performed. (S304). As described above, while switching is performed between the multiplexed control system boards 101, 106 and 119, a situation occurs in which one of the control system boards 101, 106 and 119 does not transmit a remote power control signal. This means that after the active board is replaced with a standby board, all the state controller logics 105, 110, and 123 are driven from all control system boards 101, 106, and 119 until a new active board is determined, so that the remote power control signal is triggered. This is because it becomes a state (S306). When the remote control message input from the multiplexed control system boards 101, 106, and 119 is in a tri-state state, pull-up logics 112 and 113 of the back board 111 operate to display the remote power control signal as " 1 " "To make (S308).

At this time, before the delay count logic 114 starts to operate and the logic determined by the pull-up logic 112 and 113 is transferred to the power supply logic 115 and 116, the new active board is changed to a standby board. The count is incremented so that the board is delayed by a time sufficient to be determined (S310). Here, the user may determine the count expiration time as desired by measuring the successful multiplexing switching time in advance. Accordingly, while the multiplexed control system board is transferred, the remote power control signal “1” generated by the operation of the pull-up logic 112, 113 of the remote power control target board 117, 118 is input, but the delay is received. While the count logic 114 is operating, power supply is maintained continuously to the corresponding remote power control target boards 117 and 118. This is done during the preset count time or extinction time by the user.

Next, the control system board changed to the active board continuously transmits the remote power control signal to the back board 111 using the information already backed up (S312). When the back board 111 detects a remote power control signal transmitted from a control system board changed to the active board within a count time set according to the operation of the delay count logic 114 (S314), the corresponding remote power control target The power supply logics 115 and 116 operate through the pull-up logics 112 and 113 and the delay count logic 114 for the boards to supply power to the target boards 117 and 118 (S316).

Accordingly, the power supply is continuously applied to the remote power control target boards 117 and 118 without interruption even when the multiplexed control system boards are transferred. However, when the remote power control target board 117, 118 does not detect the transmitted remote power control signal within the set count time (S312), the power of the corresponding remote power control target board 117, 118 is cut off. (S318).

As described above, the present invention is configured to multiplex the control system board to control and control the entire system, and to remotely control the power of the remaining remote power control target boards except the multiplexing board from the control system board without using its own power switch. The present invention provides an apparatus and method capable of performing the same, and also provides an apparatus and method capable of continuously maintaining power of each board even when a multiplexing control system board performs a successful transfer.

The above description and the contents of the drawings disclose an embodiment for describing the present invention, but the present invention is not limited thereto. Those skilled in the art to which the present invention pertains may change, delete or modify the structure and process of the present invention within the scope of the technical idea of the present invention. Accordingly, the scope of the present invention should be determined by the appended claims rather than by the foregoing description and drawings.

According to the present invention, the power of the remaining boards in the multiplexed control system board in a distributed communication system can be remotely controlled without using a power switch.

In addition, the power of each board can be continuously maintained even when the multiplexing control system board performs a successful transfer, thereby improving the intelligence of the system.

Claims (14)

Setting one board selected from a plurality of control system boards as an active board at system booting, and determining the other board as a standby board; Collecting the thread / separation information for each of the remote power control target boards, and determining a remote power control target board to which power is applied based on the collected thread / hernia information; Creating a remote power control signal for the remote power control target board; The control system board determined as the active board sends the remote power control signal to the back board as it is, and the control system board determined as the standby board converts the remote power control signal to a tri-state state and then sends it to the back board; Generating a logic value in the backboard receiving the remote power control signal to apply power to the corresponding remote power control target board only when the signal is not in a tri-state state; And, And applying power to the corresponding remote power control target board based on the generated logic value. The method of claim 1, Performing a count between the step of generating the logic value and the step of applying the power, delaying the logic value generated in the step of generating the logic value by a predetermined time and then applying the power. Remote power control method in a distributed communication system comprising a. The method of claim 1, The control system board determined as the standby board receives and stores the same information as the remote power control signal transmission information of the control system board determined as the active board through a preset backup channel, the remote power control method in a distributed communication system. The method of claim 1, The control board of the active board stores the active flag, the standby board of the control board stores the remote power control method in a distributed communication system, characterized in that for storing a standby plug. The method of claim 1, The control system board transferred to the active board is a remote power control method in a distributed communication system, characterized in that for continuing to transmit a remote power control signal to the corresponding remote power control target board backed up. A plurality of remote power control target boards; A plurality of control system boards that collectively control the entire system and transmit remote power control signals for each of the plurality of remote power control target boards; And, It includes a back board receiving a remote power control signal transmitted from each of the plurality of control system board to supply power to the corresponding remote power control target board, The back board, A pull-up logic unit configured to generate a logic value to supply power to the corresponding remote power control target board if the remote power control signals transmitted from the plurality of control system boards are not in a tri-state state; And, And a power applying logic unit configured to apply power to the corresponding remote power control target board in response to a logic value generated by the pull-up logic unit. The method of claim 6, wherein the back board And a delay count logic unit positioned between the pull-up logic unit and the power applying logic unit to increase a count to delay a transmission time of a logic value generated by the pull-up logic unit by a set time. Remote power control system in a distributed communication environment. The method of claim 6, wherein each of the plurality of control boards A first register unit which stores its multiplexing state information; A second register unit configured to store detachment / mounting information of the plurality of remote power control target boards; A third register unit for identifying a remote power control target to which power is applied by referring to the demounting / mounting information stored in the second register unit and transmitting a remote power control signal to the identified remote power control target board; And, Including a tri-state control logic unit for transmitting the remote power control signal transmitted from the third register unit to the identified remote power control target board or converted to a tri-state state with reference to the multiplexing state information stored in the first register unit. Remote power control system in a distributed communication environment, characterized in that configured. The method of claim 6, The plurality of control boards are divided into an active control board and a standby control board. When the system is booted, an active flag is stored in a first register of the active control board in an initial state, and a standby is stored in a first register of the standby control board. Remote power control system in a distributed communication environment, characterized in that the flag is stored. The method of claim 9, And a third register of the standby control system board receives and stores the same information as a third register of the active control system board through a backup channel. The method of claim 8, wherein the tristate control logic unit, In a distributed communication environment, when the control system board including itself is in a standby state, tri-state control is performed to convert a remote power control signal transmitted from the third register unit to the back board into a tri-state state. Remote power control system. The method of claim 8, wherein the tristate control logic unit, And a remote power control signal transmitted from the third register unit to the back board without any operation when the control system board including the self is in an active state. The method of claim 8, wherein the tristate control logic unit, Tri-state control is performed while the plurality of control system boards are transferred to each other, thereby converting a remote power control signal transmitted from the third register unit to the back board into a tri-state state. Control system. The method of claim 7, wherein the power applying logic unit, And if the logic value generated by the pull-up logic unit is not received within a set time of the delay count logic unit, cut off power to the corresponding remote power control target board.

Images