JPH06113011A - Remote monitoring alarm display device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a remote monitoring and alarm display device that can ease restrictions on the number of installed units and prevent the maintenance staff from overlooking alarms. [Structure] When an alarm display signal is received by an alarm signal receiving circuit 2, an alarm signal determination unit 1 determines the alarm content from the alarm display signal and whether or not there is a remote monitoring alarm display device at the rear, and outputs an alarm. The display drive circuit 4 emits the alarm lamp 63 corresponding to the content and sounds the alarm buzzer 64.
In addition, if there is a remote monitoring alarm display device 11 in the rear, the alarm signal transmitting circuit 3 is controlled to transmit an alarm display signal to the rear remote monitoring alarm display device 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring alarm display device for remotely monitoring a fault condition of an electronic exchange or the like.

[0002]

2. Description of the Related Art For example, a conventional remote monitoring system for monitoring a failure condition of an electronic exchange at a remote location has a configuration as shown in FIG.

In this system, the remote monitoring alarm display device 11A is arranged in the exchange room 9, and the remote monitoring alarm display device 11B is installed in the remote monitor room 13. These remote monitoring and alarm display devices 11A and 11B are MDF.
(Main wiring board) 12A, a dedicated line, and MDF12B were connected. Further, the remote monitoring alarm display device 11A installed in the exchange room 9 was connected to the PBX (electronic exchange) 10.

When a failure occurs in the PBX 10 of the exchange room 9, the remote monitoring alarm display device 11A connected to the PBX 10 sends an alarm display signal corresponding to the failure to the remote monitoring alarm display installed in the remote monitoring room 13. It transmits to the apparatus 11B via MDF12A. The remote monitoring alarm display device 11B installed in the remote monitoring room 13 receives this alarm display signal via the MDF 12B and displays an alarm by buzzer sounding or LED lighting. In this way, the remote monitoring room 13 can be used to confirm a failure that has occurred in the PBX 10 of the exchange room 9.

By the way, whether the remote monitoring alarm display device 11 used in this conventional monitoring system is set to operate so as to transmit an alarm display signal or to receive an alarm display signal. It was configured to be switchable to either usage method of.

According to this configuration, in constructing the system shown in FIG. 5, the remote monitoring alarm display device 11A directly connected to the PBX 10 is set as the transmission setting, and the remote monitoring location 17 is set.
The remote monitoring alarm display device 11B installed in B must be set for reception.

Therefore, for example, when a system for monitoring the PBX 10 at a plurality of remote places is considered, the system is inevitably configured as shown in FIG. As shown in the same figure, this system includes remote monitoring locations 14B-
All remote monitoring alarm display devices 1 installed in 14D
1B to 11D required a dedicated line from the remote monitoring and alarm display device 11 connected to the PBX 10 in the exchange room 9.

In this system configuration, a large number of dedicated lines must be routed, and the number of remote monitoring and alarm display devices at remote locations that can be connected in parallel to the remote monitoring and alarm display devices in the exchange room is limited. It has been considered difficult to arbitrarily increase the number of remote monitoring locations.

Further, conventionally, the remote monitoring alarm display device 11 of this type has a structure in which an alarm display is displayed when an alarm display signal is received, and the display is turned off when the reception is stopped. According to this conventional configuration, all the alarm displays are erased at the same time as the PBX 10 recovers from the failure, and in some cases, maintenance personnel often overlook the failure status.

[0010]

As described above, since the conventional remote monitoring alarm display device has a structure that can be used only in either the transmission setting or the reception setting, it may be installed in the remote monitoring place. In that case, it will be forced to operate as reception setting. For this reason, when performing remote monitoring at multiple locations, all remote monitoring and alarm display devices installed at remote locations are dedicated lines that are directly connected to the remote monitoring and alarm display devices installed at the installation location of the monitored device. Needed.

For this reason, in order to install a large number of remote monitoring and alarm display devices at remote locations, it is necessary to run a large number of dedicated lines, and the remote monitoring and alarm display device installed at the installation location of the monitored device. Since there is a limit to the number of remote monitoring and alarm display devices that can be connected in parallel with all remote monitoring and alarm display devices installed in remote locations, the number of remote monitoring and alarm display devices installed in remote locations was also limited.

Further, as described above, in the conventional remote monitoring alarm display device, all alarm states are stopped at the same time when the PBX is recovered from the failure, so that the maintenance staff overlooks the failure status. .

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a remote monitoring and alarm display device which can alleviate restrictions on the installation location and the number of units, and can confirm the failure situation by a maintenance person. To aim.

[0014]

SUMMARY OF THE INVENTION The present invention provides a remote monitoring alarm display device for receiving an alarm display signal indicating a failure of a monitored device and displaying an alarm based on the alarm display signal. When receiving, the judgment means for judging whether or not the rear remote monitoring and alarm display device is connected to the own unit, and the judgment means for judging that the rear remote monitoring and alarm display device is connected And a transmission control means for transmitting the received alarm display signal to a remote monitoring alarm display device behind the alarm display signal.

In the present invention, the remote monitoring alarm display device preferably comprises latch means for latching the alarm display state based on the alarm display signal.

[0016]

According to the present invention, since the alarm display signal can be transmitted at the same time as receiving the alarm display signal, at least one remote monitor alarm display device is connected to the monitored device. If it is connected to the remote monitoring alarm display device installed at a remote place, the alarm display signal can be received by connecting the remote monitor alarm display devices, so that restrictions on the installation place and the number of devices can be relaxed.

Further, according to the present invention, the latching means is provided so that even if the monitored device recovers from the failure, the alarm status is maintained unless the maintenance staff performs an operation to stop the alarm status. It is possible to prevent the maintenance staff from overlooking the alarm even when the failure is instantly recovered after the occurrence of the error.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a remote monitoring alarm display device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a remote monitoring alarm display device of the present invention.

The remote monitoring alarm display device 11 is composed of an alarm signal judging section 1, an alarm signal receiving circuit 2, an alarm signal transmitting circuit 3, a display drive circuit 4, a latch changeover switch 5 and an alarm display circuit 6.

The alarm signal receiving circuit 2 includes a transformer 21, P
The receiver circuit 22 for B signal is provided.

The alarm signal transmission circuit 3 includes a transformer 31, P
The B signal transmission circuit 32 is provided.

The alarm display circuit 6 includes a latch circuit 61, a latch reset switch 62, an alarm lamp 63, and an alarm buzzer 64.

The alarm signal determination unit 1 determines the content of the failure from the alarm display signal. Also, it is determined whether or not there is a remote monitoring alarm display device in the rear. FIG. 2 shows an example of the determination. The operation of the remote monitoring alarm display device 11 will be described below. In the remote monitoring alarm display device 11, the alarm signal receiving circuit 2 receives an alarm display signal that notifies the occurrence of a failure. Upon receiving this, the alarm signal receiving circuit 2
The alarm display signal is input through the transformer 21 and converted by the PB signal reception circuit 22 to generate the alarm signal determination unit 1
Output to. The alarm signal determination unit 1 controls the display drive circuit 4 to display an alarm corresponding to the received alarm display signal. In this case, the latch changeover switch 5 is assumed to be changed over so as to be connected to the wiring to which the latch circuit 61 is connected. The display drive circuit 4 controlled by the alarm signal determination unit 1 displays an alarm by emitting light of the alarm lamp 63 and ringing of the alarm buzzer 64 corresponding to the content of the alarm to notify the maintenance person of the occurrence. At this time, the latch circuit 61 operates so as to maintain the alarm display state. As a result, the warning display continues even after the failure is recovered. This alarm display can be reset by operating the latch reset switch 62.

On the other hand, in the latch changeover switch 5,
If it is switched so as to be connected to the wiring to which the latch circuit 61 is not connected, the display drive circuit 4 controlled by the alarm signal determination unit 1 displays the alarm corresponding to the alarm content, but fails. This alarm display is canceled when the alarm is restored.

FIG. 3 is a diagram showing a state of alarm display in a remote monitoring system using the above-described remote monitoring alarm display device 11 of the present invention. Remote monitoring alarm display device 11A
Is arranged in the exchange room 9 and has a remote monitoring and alarm display device 11
B is installed in the remote monitoring room 13. These remote monitoring alarm display device 11A and remote monitoring alarm display device 11B
Is MDF (main distribution board) 12A, dedicated line, MDF12B
Connected through. Further, the remote monitoring alarm display device 11A installed in the exchange room 9 is a PBX (electronic exchange).
Connected to 10. Here, it is assumed that the remote monitoring alarm display device 11A is switched so that the latch changeover switch 5 is connected to the wiring to which the latch circuit 61 is not connected. In addition, the remote monitoring alarm display device 11B
It is assumed that the latch changeover switch 5 is changed over so as to be connected to the wiring to which the latch circuit 61 is connected. FIG. 3A shows the remote monitoring system when no failure has occurred in the PBX 10. FIG. 3B shows PB.
Remote monitoring alarm display device 1 when a failure occurs in X10
1 is shown. The remote monitoring alarm display device 11A and the remote monitoring alarm display device 11B are alarm lamps 63 corresponding to the alarm content.
And the alarm is displayed by the alarm buzzer 64 ringing. FIG. 3C shows the remote monitoring alarm display device 11 when the failure of the PBX 10 is recovered. The alarm display of the remote monitoring alarm display device 11A is canceled. However, the alarm display of the remote monitoring alarm display device 11B is not released unless the reset switch 62 is operated by the maintenance person.

With such a function, even if a failure such as an automatic recovery in an instant occurs, the alarm display is not canceled unless the maintenance person resets it, so oversight can be prevented.

Further, when the remote monitoring alarm display device 11 receives the alarm display signal by the alarm signal receiving circuit 2 as described above, in the alarm signal judging section 1, whether or not the remote monitoring alarm display device 11 is behind. To judge. As a result of the judgment, if there is the remote monitoring alarm display device 11 in the rear, the alarm signal transmitting circuit 3 is controlled so as to transmit an alarm display signal to the rear remote monitoring alarm display device 11, and the remote monitoring alarm display is provided in the rear. If the display device 11 is not provided, the alarm signal transmission circuit 3 is controlled so that the alarm display signal is not transmitted to the remote monitoring alarm display device in the rear.

In the alarm signal transmitting circuit 3 which is controlled by the alarm signal judging section 1 to transmit the alarm display signal to the remote monitoring alarm display device 11 at the rear, the alarm display signal is transmitted to the PB.
The signal receiving circuit 32 converts the signal and transmits it through the transformer 31.

As described above, in the remote monitoring alarm display device 11 of the present invention, it is possible to receive the alarm display signal and simultaneously transmit the alarm display signal to the other remote monitoring alarm display device 11.

Therefore, by using this remote monitoring alarm display device 11, a monitoring system as shown in FIG. 4 can be realized.

In this monitoring system, the remote monitoring and alarm display device 11A and the remote monitoring and alarm display device 11B, which are directly connected to the PBX 10 installed in the exchange room 9, have the MDF 12
A, a dedicated line, and the MDF 12B are connected. Similarly, the remote monitoring alarm display device 11B and the remote monitoring alarm display device 11C are connected, and the remote monitoring alarm display device 1 is connected.
1C and the remote monitoring alarm display device 11D are connected.

As described above, if at least one remote monitoring alarm display device 11 is connected to the PBX 10 in the exchange room 9, the PBX 10 can be monitored later by connecting the remote monitoring alarm display devices 11 to each other. it can.

Therefore, when monitoring is performed by a plurality of remote monitoring alarm display devices 11, the newly installed remote monitoring alarm display device 11 should be connected to the remote monitoring alarm display device 11 closest to the remote monitoring alarm display device 11. Therefore, it is possible to connect a plurality of remote monitoring and alarm display devices 11 by selecting the most efficient connection method, relax the restriction on the number of remote monitoring and alarm display devices 11 installed, and expand the installation. It can be carried out.

[0034]

As described above, according to the present invention, since the remote monitoring alarm display device is configured not only to receive the alarm display signal but also to the rear remote monitoring alarm display device, a plurality of remote monitoring alarm display devices can be transmitted. When monitoring at a remote location, a plurality of remote monitoring alarm display devices can be connected by selecting the most efficient connection method, and the limitation on the number of remote monitoring alarm display devices installed can be eased.

Further, according to the present invention, since the latch means is provided, even if the PBX is restored from the failure, the alarm is not released unless the maintenance person resets it, so that the alarm display can be prevented from being overlooked.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a remote monitoring alarm display device according to the present invention.

FIG. 2 is a diagram showing an example of data stored in a RAM of the remote monitoring alarm display device according to the present invention.

FIG. 3 is a diagram showing a state of alarm display in a remote monitoring system using the remote monitoring alarm display device according to the present invention.

FIG. 4 is a diagram showing an embodiment of a remote monitoring system using a plurality of remote monitoring alarm display devices according to the present invention.

FIG. 5 is a diagram showing a basic configuration of a conventional remote monitoring system of this type.

FIG. 6 is a diagram showing an example of a remote monitoring system using a plurality of conventional remote monitoring alarm display devices.

[Explanation of symbols]

1 Alarm Signal Judgment Section 2 Alarm Signal Reception Circuit 3 Alarm Signal Transmission Circuit 4 Display Drive Circuit 5 Latch Changeover Switch 6 Alarm Display Circuit 9 Exchange Room 10 PBX (Electronic Exchange) 11A, 11B, 11C, 11D Remote Monitoring Alarm Display Device 12A, 12B, 12B ', 12C, 12C', 12
D, 12D 'MDF 13 Remote monitoring room 14B, 14C, 14D Remote monitoring location 21, 31 Transformer 22 PB signal receiving circuit 32 PB signal transmitting circuit 61 Latch circuit 62 Latch reset switch 63 Alarm lamp 64 Alarm buzzer

Claims (3)

[Claims] 1. A remote monitoring alarm display device for receiving an alarm display signal notifying a failure of a monitored device and displaying an alarm based on the alarm display signal, when the alarm display signal is received A judgment means for judging whether or not the rear remote monitoring alarm display device is connected, and if the judgment means judges that the rear remote monitoring alarm display device is connected, the received alarm display signal is sent. A remote monitoring alarm display device, comprising: a transmission control means for transmitting to a remote monitoring alarm display device behind. 2. An alarm display is provided, further comprising latch means for latching the alarm display state based on the alarm display signal, and the alarm display is continued even if the failure of the monitored device is automatically recovered. Item 1. A remote monitoring alarm display device according to item 1. 3. The remote monitoring alarm display device according to claim 2, further comprising switching means for switching between a path using the latch means and a path not using the latch means.