JPH0245866B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a centralized monitoring center, and in particular to a centralized monitoring system that rationally collects highly urgent monitoring information generated by monitored exchanges.

(b) Background of the technology In recent years, as part of efforts to rationalize the monitoring and maintenance of automatic exchanges, a method has been put into practical use in which each automatic exchange is unmanned and centrally monitored from a central monitoring center that is commonly installed at multiple automatic exchanges. . Such a centralized monitoring center collects monitoring information generated by each monitored exchange and grasps the operating status of each monitored exchange. The monitoring information includes relatively low-urgency information, such as indicating the steady operating status of the monitored exchange, and urgent information, such as indicating the occurrence of a serious failure that paralyzes the functions of the monitored exchange. There are some with a high degree of severity. The central monitoring center needs to quickly collect and analyze monitoring information with a particularly high degree of urgency, and take appropriate measures.

(c) Prior Art and Problems FIG. 1 is a diagram showing an example of a conventional centralized monitoring system in this type of centralized monitoring center. In FIG. 1, a centralized monitoring center CMOC is fixedly connected to a plurality of monitored station exchanges LS through transmission paths set in a digital trunk line DL passing through a relay station TS. Central monitoring center
The CMOC is equipped with a plurality of monitoring stands AR and a data link interface device DLI. In addition, each monitored station exchange LS has a monitoring information transmitting device AS.
The monitoring information indicating the operating status of the monitored station exchange LS is set. Central monitoring center
Each monitoring stand AR of the CMOC transmits an instruction to select the transmission unit leading to the monitored station exchange LS to be assigned to the control unit CTL of the data link interface device DLI via the interface circuit IF.
The control unit CTL selects the transmission path via the digital terminal DT based on the received instruction, and connects it to the monitoring stand AR from which the instruction is transmitted. The monitoring stand AR
is sent to the monitored station exchange via the connected transmission section.
The monitoring information set in the monitoring information transmitting device AS of the LS is extracted, and the monitoring information transmitting device AS is set to the extracted state. The extracted monitoring platform AR is
An instruction to select a transmission path to the next monitored station exchange LS is transmitted to the control unit CTL, and monitoring information is collected in the same process as described above.

As is clear from the above explanation, in the conventional centralized monitoring system, each monitoring stand AR of the centralized monitoring center CMOC independently transmits instructions to the control unit CTL of the data link interface device DLI.
Monitoring information for each monitored station switch LS was collected uniformly regardless of the level of urgency. Therefore, it is difficult to quickly collect only monitoring information with a particularly high degree of urgency, and it is also difficult to specify a monitoring stand AR that collects monitoring information with a high degree of urgency.

(d) Purpose of the Invention The purpose of the present invention is to eliminate the shortcomings of conventional centralized monitoring methods such as those described above, and to realize a means for quickly collecting highly urgent monitoring information from a specific monitoring stand. is in

(e) Structure of the Invention The object is to provide a plurality of monitoring stands that collect and monitor monitoring information of a plurality of monitored exchanges via transmission lines fixedly set for each of the plurality of monitored exchanges. In the centralized center, a control unit that controls the operation of each necessary part, an alarm collection circuit that collects preset monitoring information with a high degree of urgency, and the plurality of monitored exchanges are connected to the monitoring stand or the alarm collection circuit. and a data link interface connected to the control unit, and when collecting the highly urgent monitoring information at a predetermined period, the control unit directly controls the data link interface to respond to the alarm collection circuit. After transmitting monitoring information from the corresponding monitored station exchange to the alarm collection circuit, the alarm collection circuit is connected to a predetermined monitoring stand by controlling the data link interface. However, when collecting less urgent monitoring information at a predetermined period, the data link This is achieved by controlling the interface to connect the monitored exchange and the monitoring console that has made the connection request, and transmitting monitoring information directly from the corresponding monitored exchange to the monitoring console that has requested the connection.

(f) Embodiment of the invention An embodiment of the invention will be described below with reference to the drawings. FIG. 2 is a diagram showing a centralized monitoring system according to an embodiment of the present invention, and FIG. 3 is a diagram showing an example of the configuration of the centralized monitoring center in FIG. 2. In addition,
The same reference numerals indicate the same objects throughout the figures. Second
In the figure, the central monitoring center CMOC is provided with an alarm collection circuit AP that collects only highly urgent monitoring information in cooperation with the control unit CTL'. The alarm collection circuit AP is as shown in Figure 3.
Two sets of general-purpose data transfer circuits ADLC0 and ADLC
1, a buffer memory BUM, and a direct memory access control unit DMAC. The general-purpose data transfer circuits ADLC0 and ADLC1 are each connected to the data link interface device DLI via the interface circuit IF, and are connected to the interface circuit IF at a predetermined rate (for example, per second) under the control of the direct memory access control unit DMAC. Continuously transmits and receives 64 kilobits of serial data. Note that one of the general-purpose data transfer circuits ADLC0 and ADLC1 operates as a working circuit, and the other operates as a reserve. Buffer memory BUM is a general-purpose data transfer circuit
This is a memory that temporarily stores data received by ADLC0 or ADLC1. In FIGS. 2 and 3, the control unit CTL' is configured to monitor each monitored exchange at short intervals necessary to collect monitoring information with a high level of urgency.
Transmission line leading to LS (via digital terminal DT) and alarm collection circuit AP (interface circuit IF)
) and the data link interface device DLI
buffer memory in the alarm collection circuit AP
After accumulating the monitoring information collection command in BUM, the direct memory access control unit DMAC is activated. The direct memory access control unit DMAC extracts a monitoring information collection command from the buffer memory BUM and transfers it from the currently used general-purpose data transfer circuit (for example, ADLC0) to the interface circuit IF. The monitoring information collection command is sent to the data link interface device.
Monitored station exchange via DLI and the transmission line
Transmitted to LS. At the monitored station exchange LS,
The monitoring information transmitting device AS sends the set monitoring information to the transmission path. The monitoring information is transmitted to the central monitoring center CMOC via the transmission path, and further transmitted to the alarm collection circuit AP via the data link interface device DLI. In the alarm collection circuit AP, the direct memory access control section
The DMAC transfers and stores the monitoring information arriving at the general-purpose data transfer circuit ADLC0 in the buffer memory BUM, and notifies the control unit CTL'. The control unit CTL' checks the degree of urgency of the monitoring information stored in the buffer memory BUM, and if the degree of urgency of the monitoring information is low, the control unit CTL' does not extract the monitoring information and transfers it to the next monitored station exchange.
Move on to collecting monitoring information for LS. On the other hand, if the urgency of the monitoring information is high, a command to set the monitoring information transmitting device AS to the monitoring information collected state is transmitted from the alarm collection circuit AP to the monitored station exchange LS in the same process as described above. After that, control the data link interface device DLI, disconnect the alarm collection circuit AP from the transmission path leading to the monitored station exchange LS, and reconnect it to the predetermined monitoring platform AR (via the interface circuit IF). Then, in the same process as described above, the highly urgent monitoring information stored in the buffer memory BUM is transmitted to the monitoring platform AR. Surveillance stand AR that received highly urgent surveillance information
immediately analyzes the monitoring information and takes necessary actions. Regarding monitoring information with a low level of urgency, as in Figure 1, each monitoring station AR will share instructions to connect to the transmission path leading to each monitored station switch LS. The information is transmitted to the control unit CTL' of the data link interface device DLI at a cycle long enough to collect the information, and the monitoring information set in the monitoring information transmitting device AS of the monitored station exchange LS is collected.

As is clear from the above description, according to this embodiment, the monitoring information with high urgency generated by each monitored station exchange LS is collected by the alarm collection circuit AP provided in the central monitoring center CMOC and the control unit CTL'. information is quickly collected and transmitted to the designated monitoring platform AR.
On the other hand, monitoring information with a low level of urgency is collected by each monitoring stand AR at sufficiently long intervals.

It should be noted that FIGS. 2 and 3 are only one embodiment of the present invention, and for example, the central monitoring center CMOC
The configuration is not limited to that shown in the drawings, and many other modifications may be considered, but the effects of the present invention will not change in any case.

(g) Effects of the Invention As described above, according to the present invention, monitoring information with a high degree of urgency is quickly collected in the centralized monitoring center, and appropriate measures can be taken quickly by the predetermined monitoring stand, and the exchange system reliability is improved.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a conventional centralized monitoring system, FIG. 2 is a diagram showing a centralized monitoring system according to an embodiment of the present invention, and FIG. 3 is an example of the configuration of the central monitoring center in FIG. 2. It is a diagram. In the figure, ADLC0 and ADLC1 are general-purpose data transfer circuits, AP is an alarm collection circuit, AR is a monitoring stand, AS is a monitoring information transmitter, BUM is a buffer memory, CCM is a channel control memory, CG is a clock generation circuit, and CHM is a channel memory. ,CMOC
is the central monitoring center, CTL and CTL′ are the control unit,
DL is a digital trunk line, DLI is a data link interface device, DMAC is a direct memory access control unit, DT is a digital terminal, IF is an interface circuit, LS is a monitored station switch,
MDMPX is a multiplexing/demultiplexing device, MPU is a processor, RAM is a read/write memory, ROM is a read-only memory, and TS is a relay station.

Claims (1)

[Scope of Claims] 1. A centralized monitoring center equipped with a plurality of monitoring stands that collect monitoring information of a plurality of monitored exchanges via transmission lines fixedly set for each of the plurality of monitored exchanges. , a control unit CTL′ that controls the operation of each necessary part, an alarm collection circuit AP that collects monitoring information with a high degree of urgency set in advance, and the plurality of monitored station exchanges are connected to the monitoring stand or the alarm collection circuit. and a data link interface DLI connected to the control unit, and when collecting the highly urgent monitoring information at a predetermined period, the control unit directly controls the data link interface to activate the alarm collection circuit. After connecting to a corresponding monitored station exchange and transmitting monitoring information from the corresponding monitored station exchange to the alarm collection circuit, controlling the data link interface to perform predetermined monitoring on the alarm collection circuit. When collecting less urgent monitoring information at a predetermined period, the data is transferred in response to a connection request from the monitoring stand. The system is characterized by controlling the link interface to connect the monitored exchange and the monitoring station that has requested connection, and transmitting monitoring information directly from the corresponding monitored exchange to the monitoring station that has requested connection. Centralized monitoring method.