KR19990038236A - Reset Device on Redundant Board - Google Patents

Abstract

The present invention relates to a redundancy device for mutually resetting a state room board among redundant boards in a redundant board of an electronic exchanger. In the related art, when an active board falls into an abnormal state, the redundant board is switched to standby. Although the board operates in the active state and performs the service without interruption, but the board operated in the standby state due to an error or other malfunction remains as an error state, the operator had to recognize it and take appropriate appropriate measures. By adding reset function between boards, it detects the status of each other between two boards operating in redundancy, and if one board enters into abnormal status and cannot perform normal function, normal status plays active role while abnormal status occurs. The board's status to the upper processor 110 And by initializing the corresponding board relative changes to the abnormal state if there is the initialization command from the host processor 110 in hardware, it can improve in the above-mentioned drawbacks.

Description

Reset Device on Redundant Board

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reset device in a duplication board, and more particularly, to a duplication device for mutually resetting a state room board among duplexed boards in a duplication board of an electrical exchanger.

In the related art, when one of the PBA boards operating in redundancy falls into an abnormal state, the normal board is active and communicates with the upper processor and the lower device, and reports the abnormal PBA board state to the upper processor. In addition, the upper processor is configured to display the board in an error state to the operator through the input / output unit so that the operator can know that the board has an error.

Therefore, a board operated in standby due to an error or other malfunction remained in an error state, and the operator had to discover it and take appropriate appropriate action.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art, and implements a board that is placed in an abnormal state due to an error, such as performing a wrong operation, so that the normal state board can be hardware reset. It is an object of the present invention to provide a reset device in a redundant board that increases the level.

In order to achieve the above object, the present invention provides a reset device in an apparatus including a first board and a second board, which are configured with redundancy, and an upper processor that controls a plurality of lower devices and collects status information, alarm information, and the like. The board status information is obtained from the first and second boards, each of which is redundant in the electronic switchboard, each of the first and second board monitors for monitoring the status of their own redundant boards, and the board monitor of the other party. First and second counterpart board monitors for receiving and monitoring abnormalities of the counterpart board; first and second processors for generating signals to control the board; and first reset units for resetting the first board; And a second reset unit for resetting the second board, and a plurality of first, second, ..., n operating under the control of a corresponding board set to be active below the first board and the second board. Device To provide a reset device in the redundancy board being configured.

1 is a block diagram of an electronic switchboard suitable for explaining one embodiment of a reset device in a redundant board according to the present invention;

<Description of the code | symbol about the principal part of drawing>

110: upper processor 130, 150: first, second board

132, 152: the first and second opponent board monitoring unit

134 and 154: first and second board monitors 136 and 156: first and second processors

138 and 158: first and second reset parts 160 to 152: first, second and n-th device

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Referring to FIG. 1, a block configuration of an electronic switching unit suitable for describing an embodiment of a reset device in a redundant board is described. An upper processor that controls a plurality of lower devices and collects state information, alarm information, and the like 110, the first board 130 and the second board 150 configured as redundancy in the electronic switchboard, and the first and second board monitoring units 134 to monitor the state of their own redundant board. 154, the first and second counterpart board monitors 132 and 152 for receiving board status information from the counterpart monitors 132 and 152 of the counterpart and monitoring whether there is an abnormality of the counterpart board, and generating a signal. Each of the first and second processors 136 and 156 for controlling the board, the first reset unit 138 for resetting the first board 130, and the second reset unit for resetting the second board 150. 158 and set to be active below the first board 130 and the second board 150 described above. Under the control of the operation board plurality of first, second, ..., which is configured including the n-th device (160-164).

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

The upper processor 110 controls a plurality of lower devices, collects status information, alarm information, and the like, and informs the operator of the collected result through an input / output processor. Transmit reset signal that can be initialized by hardware to initialize the counter board which has transitioned to abnormal state.

In the above configuration, the first board 130 operating in redundancy provides an operation state of the first board 130 to the second board 150 which is a counterpart board among the redundant boards through the first board monitoring unit 134. Again, the second board 150 receives the state information of the first board 130 from the first board monitoring unit 134 so as to know the state of the first board 130 in the second counter board monitoring unit 152. On the other hand, the second board 150 provides the operating state of the second board 150 to the first board 130, which is the counterpart board among the redundant boards through the second board monitoring unit 154, and again the first board In operation 130, the first board monitoring unit 132 may recognize the state of the second board 150 by receiving the state information of the second board 150 from the second board monitoring unit 154.

In the above-described operation, when the second board 150 is in an abnormal state by monitoring the second board 150, the first board 130 may be active and the first board 130 operating normally may be in an abnormal state. Determination of initializing, ie, resetting, the second board 150 which is missing is in charge of the upper processor 110.

On the contrary, the case in which the first board 130 is in an abnormal state and the second board 150 resets the first board 130 is similar to the above-described operation, and thus description thereof will be omitted.

From the standpoint of the first board 130, the first board 130 is configured with redundancy together with the second board 150 to perform an operation similar to that of the second board 150.

The state of the first board 130 is inspected through the first board monitoring unit 132 embedded in its board to provide a state test result to the second board 150, and the first board 130. The second counter board monitoring unit 152 in the second board 150 receiving the board status information from the second board 150 receives the status check information of the first board 130 to know the status of the first board 130. have.

Since the state test of the second board 150 is also similar to the first board 130, a method of checking the state of the second board 150 and transmitting the test result to the first board 130 will be omitted.

The first board monitoring unit 134 of the first board 130 informs the state of the first board 130 to the second board 150 as a counterpart, and is composed of malfunctions, hernias, active / standby state information, and the like. The second board monitoring unit 154 of the second board 150 informs the first board 130 of the counterpart board of the second board 150.

In order to initialize the first board 130 in an abnormal state, a signal is supplied from the second processor 156 to the first reset unit 138 connected to the first board 130 to supply the signal to the first board 130. Initialize

Since the initialization of the second board 150 in the abnormal state is similar to the first board 130, the initialization method of the second board 150 will be omitted.

Each of the first and second reset units 138 and 158 includes a power on reset, a reset switch reset, and a reset from the counterpart board PBA. The dual power on reset initializes the PBA when power is applied to the board. This resets all redundant boards.

Reset, which operates as a reset switch, is used to reinitialize the board when power is applied during operation, and a reset from the other board causes an error in one of the two boards 130 and 150. It judges whether the board has been operated normally and automatically resets the board in which the error occurred by the command of the upper processor.

The first, second, ..., n-th devices 160 to 164 are the first board 130 or the second board set to be active below the first board 130 and the second board 150 described above. A plurality of lower devices that operate under the control of 150.

For example, when the first board 130 of the active side falls into a malfunction, the reset signal is driven and initialized from the processor of the second board 150 as the counterpart, and the second board 150 as the counterpart has already performed an active operation. Since the self-operation is performed in a standby state, the function abnormal signal is changed to normal, and even when the second board 150 falls into a malfunction, the second board 150 falls into an abnormal state by a similar step to the above-described method. The reset step of the second board 150 is omitted by resetting.

The counterpart board monitors 134 and 154 are used to monitor the status of the counterpart board, and the monitored signals include counterpart board malfunction, hernia, active / standby state information, and the like. For example, when the second board 150 is standby, the first board 130 is not normally driven while monitoring the state of the first board 130 that is the counterpart through the second counter board monitoring unit 152. In this case, the second board 150 operates in standby mode and transmits a reset signal to the first board 130 to reset the first board 130.

As described above, the present invention adds a mutual reset function between redundant boards to detect a state of each other between two boards operating in redundancy, so that one board is in an abnormal state and cannot perform a normal function. While acting as this active, the board state of the abnormal state can be reported to the upper processor 110, and if there is an initialization command of the upper processor 110, the corresponding board transitioned to the abnormal state can be initialized in hardware. It works.

The principles of the invention have been described above in connection with specific devices, which are described by way of example only, and are not limited to the spirit of the invention as described in the appended claims.

Claims (2)

The reset device in a device comprising a first board 130 and a second board 150 configured in redundancy is: An upper processor 110 that controls a plurality of lower devices and collects state information, alarm information, and the like; The first board 130 and the second board 150 configured as redundancy in the electronic switchboard, and respective first and second board monitors 134 and 154 for monitoring the state of their own redundant board; First and second counterpart board monitors 132 and 152 for receiving board state information from the board monitors 132 and 152 of the counterpart, respectively, and monitoring whether there is an abnormality of the counterpart board; First and second processors 136 and 156 for generating a signal to control the board, A first reset unit 138 for resetting the first board 130; A second reset unit 158 for resetting the second board 150, and a plurality of operating under the control of the board set to be active below the first board 130 and the second board 150 described above. A reset device in a redundant board comprising first, second, ..., n-th devices (160 to 164). The method of claim 1, When one of the two boards is in an abnormal state by monitoring the first board 130 and the second board 150 by the first and second counter board monitoring units 132 and 152. The reset device in the redundant board that reports the other party's status of abnormal status to the corresponding upper processor while the normal one is active, and initializes the corresponding partner board which has transitioned to abnormal status if there is an initialization command of the upper processor. .