JPH09308101A - Power supply confounding monitoring/controlling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily specify a function module where power supply abnormality has occurred, in a duplex system which has a plurality of sets of duplex function modules. SOLUTION: ID preservers 16a and 16b are made to preserve different IDs. Power monitors 14a and 14b monitor the voltages of the power supplies 13a and 13b, and inform power supply abnormality judgment notice parts 17a and 17b of the voltage drop. Mounting condition notice parts 15a and 15b notify the power supply abnormality notice parts 17b and 17a of existence of mounting. The power supply abnormality judgment notice parts 17a and 17b send system buses 12a and 11b the signals of abnormality occurrence of the power supplies and IDs taken form the ID preservers 16a and 16b, when the are notified of the existence of mounting by the mounting condition notice parts 15b and 15a and besides the power monitors 14b and 14a notify them of power abnormality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply confounding monitoring control system, and more particularly to a power supply confounding monitoring control system in a duplexer.

[0002]

2. Description of the Related Art There is a duplexer having an active system control device and a standby system control device having the same configuration and having the same function, and monitoring the power supply voltages of these two control devices. Such a duplexer is disclosed in, for example, Japanese Patent Laid-Open No. 173831/1990.

In the conventional duplexer, the power supply voltage of the operation system control device is monitored, and when a power supply abnormality is detected, the system is switched and an alarm is generated. Also, the power supply voltage of the standby system control device is monitored, and an alarm is generated when a power supply abnormality is detected.

Such a power confounding monitoring control system is shown in FIG.
It is also used in a duplex system as shown in. In the redundant system shown in FIG. 3, the active system bus 31 and the standby system bus 32 have an active system module 33a, 33b and a standby system module 34 having the same configuration and the same function.
A plurality of sets of a and 34b are connected. In each group,
The operation system modules 33a and 33b monitor the power supply voltage of the standby system modules 34a and 34b, and the standby system modules 34a and 34b monitor the power supply voltage of the operation system modules 33a and 33b. When each module detects an abnormality in the power supply voltage, the system bus 31,
A higher-level control device (not shown) is notified via 32.

[0005]

A plurality of sets of operating system modules and standby system modules are connected to a system bus,
In a duplicated system in which the power supply voltage of each module is mutually monitored for each group, when each module detects a power supply abnormality, the higher-level control device is notified of the abnormality detection.

However, this notification of abnormality detection has a problem in that the higher-order control device cannot specify the module in which the abnormality has occurred merely by notifying the occurrence of the abnormality. In addition, since the module in which an abnormality has occurred cannot be specified, the maintenance manager must actually look around each module, which imposes a heavy burden on the maintenance manager and requires time for restoration. is there.

An object of the present invention is to improve the maintainability of a system by making it possible to easily identify the functional module in which a power failure has occurred in a redundant system having a plurality of redundant functional module sets. To do.

[0008]

According to the present invention, an operational system functional module having a first power source and connected to a system bus to which a host control module is connected has the same configuration as the operational system functional module. And a second power supply included in a standby system functional module connected to the system bus, and the standby system functional module monitors the first power supply. Different IDs are given to the system function module and the standby system function module, respectively, and the active system function module and the standby system function module detect the abnormality of the second power supply and the first power supply, respectively, and the upper control module. A power supply confounding supervisory control method is obtained in which the ID is notified at the same time.

Further, according to the present invention, an operation system functional module connected to the system bus to which the host control module is connected, and a standby system functional module connected to the system bus and having the same configuration as the operation system functional module And a standby system functional module each having a power source, the active system functional module and the standby system functional module each have an ID holding an ID. Holding means,
A power supply monitoring unit that monitors the voltage of the power supply and outputs a voltage abnormality signal to a functional module of another system when an abnormality is detected, and a mounting state notifying unit that notifies the functional module of another system that it is in a mounted state, Power supply abnormality determination notification for notifying the upper control module of the occurrence of a power supply abnormality based on the outputs of the power supply monitoring means and the mounting state notifying means, and notifying the upper control module of the ID held in the ID holding means And a means for duplication.

[0010]

[Function] Each function module is given an ID, and the given ID is held in the ID holding unit. The power supply abnormality determination notification unit of each function module is mounted with another system function module, and when an abnormality notification is received from the voltage monitoring unit of the other system function module, it notifies the host device of the abnormality occurrence and Notify the ID given to the module.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention. The duplication system of FIG. 1 includes functional modules 12a and 12b having the same configuration and the same function, which are connected to the duplication system buses 11a and 11b. The functional modules 12a and 12b include power supplies (on-board power supply: OBP) 13a and 13b, voltage monitoring units (voltage monitoring circuits) 14a and 14b, and a mounting state notification unit 1 respectively.
5a, 15b, ID holding unit (ID register: IDRE
G) 16a and 16b, and power supply abnormality determination notification units (power supply abnormality determination notification circuits) 17a and 17b.

The power supplies 13a and 13b are functional modules 1
In order to realize the original functions of 2a and 12b, a power supply voltage is supplied to each unit (not shown). Power supply voltage monitoring unit 1
Reference numerals 4a and 14b monitor the voltages of the power supplies 13a and 13b, respectively, and when the voltages become equal to or lower than a predetermined voltage, notify a voltage abnormality detection signal to the power supply abnormality determination notification units 17b and 17a of the other system functional modules 12b and 12a. To do. The mounting state notifying units 15a and 15b notify the power supply abnormality determination notifying units 17b and 17a of the other system functional modules 12b and 12a whether or not the own function modules 12a and 12b are mounted. The ID holding units 16a and 16b are self-function modules 12a and 12b.
In addition, the IDs respectively assigned are stored and held. The power supply abnormality determination notification units 17a and 17b are the mounting state notification unit 15
When the notification of mounting is received from b and 15a and the voltage abnormality detection signal is received from the power supply voltage monitoring units 14b and 14a, the I held in the ID holding units 16a and 16b.
D is fetched, and the interrupt of power supply abnormality and the fetched ID are notified to the upper control module (not shown) via the system buses 11a and 11b.

Next, the voltage abnormality detection operation in each module will be described in detail. Here, a case will be described in which an abnormality of the power supply 13b of the functional module 12b is detected by the functional module 12a.

First, the voltage monitoring unit 14b monitors the voltage of the power supply 13b in the functional module 12b. When the power supply voltage drops below a predetermined voltage, the voltage monitoring unit 1
4b sets the output voltage level to "L" and notifies the power supply abnormality determination notification unit 17a of the occurrence of the power supply abnormality.

On the other hand, the power supply abnormality judgment notifying section 17a determines that the voltage level from the mounting state notifying section 15b is "L".
If the other system function module 12b is mounted and is "H", it is determined that the other system function module 12 is not mounted. That is, the power supply abnormality determination notifying unit 17a is the mounting state notifying unit 1
If the voltage level from 5b is "L", the voltage monitoring unit 1
4b is valid, and if it is "H", the notification from the voltage monitoring unit 14b is invalid.

As a result, the power supply abnormality judgment notifying section 17a
When the other system functional module 12b is mounted and there is a power supply abnormality notification, it judges that an abnormality has occurred in the power supply 13b, and the ID given from the ID holding unit 16a to the self function module 13a is determined. Capture, power supply interrupt to upper control module and self-function module 13
The ID given to a is notified.

In the higher-level functional module, the functional module 12 that has notified the occurrence of the power supply abnormality from the received ID.
Since a can be specified, its functional module 1
It is possible to recognize that an abnormality has occurred in the power supply 13b of the functional module 12b monitored by 2a.

In the case where the functional module 12b detects an abnormality in the power source 13a of the functional module 12a, the module in which the abnormality has occurred can be specified in the upper functional module in the same manner as described above.

In the above embodiment, the duplicated system in which the functional modules are connected to the duplicated system bus has been described. However, as shown in FIG. The same can be applied to the case where a functional module is connected to 21.

[0020]

Since the upper control module can recognize the functional module in which the power supply abnormality has occurred, maintenance is facilitated.

The reason is that each functional module is given an ID, and when the power supply abnormality is notified to the upper control module, the ID is also notified.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a duplex system of the present invention.

FIG. 2 is a block diagram showing another embodiment of the duplex system of the present invention.

FIG. 3 is a block diagram of a duplex system to which the present invention is applied.

[Explanation of symbols]

11a, 11b System bus 12a, 12b Functional module 13a, 13b Power supply (on-board power supply: OBP) 14a, 14b Voltage monitoring unit (voltage monitoring circuit) 15a, 15b Mounting state notification unit 16a, 16b ID holding unit (ID register: ID
REG) 17a, 17b Power supply abnormality determination notification unit (power supply abnormality determination notification circuit) 21 System bus 31 Operation system bus 32 Standby system bus 33a, 33b Operation module 34a, 34b Standby system module

Claims (4)

[Claims] 1. An operational system functional module having a first power supply and connected to a system bus to which a higher-order control module is connected has the same configuration as the operational system functional module,
In a power supply confounding monitoring control method of monitoring a second power supply included in a standby functional module connected to the system bus, and the standby functional module monitoring the first power supply, the active functional module and Different IDs are assigned to the standby system functional modules, and the active system functional module and the standby system functional module are
A power confounding supervisory control method characterized in that when the abnormality of the second power source and the abnormality of the first power source are detected and notified to the upper control module, the ID is simultaneously notified. 2. The system bus is connected to a plurality of sets of the active functional module and the standby functional module, and all the functional modules are given different IDs. 1. Power supply confounding monitoring control method. 3. An operation system functional module connected to a system bus to which a higher-level control module is connected, and a standby system functional module connected to the system bus and having the same configuration as the operation system functional module, In a duplexing device in which the operating system functional module and the standby system functional module each have a power source, the operating system functional module and the standby system functional module are respectively
ID holding means for holding an ID, power supply monitoring means for monitoring the voltage of the power supply and outputting a voltage abnormality signal to a functional module of another system when an abnormality is detected, and a functional module of another system To the upper-level control module based on the outputs of the mounting state notifying unit and the power supply monitoring unit and the mounting state notifying unit, and the ID held in the ID holding unit.
And a power supply abnormality determination notifying means for notifying the upper control module of the above. 4. The duplexer according to claim 3, wherein a plurality of sets of the active system functional module and the standby system functional module are connected to the system bus.