JPH03295319A - System for controlling name of transmission line - Google Patents

Abstract

PURPOSE:To eliminate the input of the name of a transmission line by an operator by providing a connection information table and a rewriting means, and transferring the name of the transmission line automatically to a switching destination device on the connection information table in a supervisory and controlling processing device. CONSTITUTION:The supervisory and controlling processing device 4 is provided with a connection state table 43 to store connection state information at every device consisting of the name of the terminal and the name of the transmission line where the terminal takes charge of, the name of the device/the name of the terminal of the connecting destination of that terminal, and the rewriting means 42 to rewrite the connection information of the connection state table 43 based on switching control information 41. Then, at the time of the switching of the device, the rewriting means 42 transfers the connection information of the devices B1 of a switching origin to the connection state table of the device Bn of a switching destination, and simultaneously, updates the connection information of the connection state table of the devices A1, C2 of a connecting destination into the connection information to meet the device Bn of the switching destination. Thus, the operator need not input the updating work of a data base due to switching from the outside, and an input mistake or the error of the data base are eliminated, and in addition, the burden or the operator is lightened.

Description

[Detailed Description of the Invention] [Summary] Regarding a transmission path name management method in a transmission equipment monitoring/control system, the purpose of this invention is to eliminate the need to re-enter transmission path names when switching equipment in a transmission path monitoring and control system. A transmission line is constructed by connecting a plurality of transmission facilities having active equipment and backup equipment with overhead wires, and when the supervisory control processing unit detects a failure in the active equipment, the transmission route is routed through the backup equipment. In a transmission system that automatically switches and controls the connection status of overhead wires, the supervisory control processing device is provided with the terminal name for each device, the name of the transmission path that the terminal is responsible for, and the name of the device/terminal to which the terminal is connected. and a rewriting means for rewriting the connection information of the connection state table based on the switching control information, and when switching devices, the rewriting means is configured to store connection state information of the switching destination device. The configuration is such that the connection state information of the switching source device is moved to the connection state table, and the connection state information of the connection state table of the connection destination device is updated to correspond to the switching destination device.

[Industrial application field]

The present invention relates to a transmission path name management method in a transmission device monitoring/control system.

For example, in a large-scale relay station, a plurality of transmission equipment with different multiplexing hierarchies are installed and these equipments are connected by overhead wires to form a transmission path.

In such a relay station, a supervisory control device processing device constantly monitors each transmission facility, and when a failure occurs in the active device of a certain hierarchical facility, it switches to a backup device. The database of this supervisory control processing equipment has connection information indicating which equipment in the upper and lower transmission equipment the active equipment of each transmission equipment is connected to and which transmission path it constitutes, and can be monitored as necessary. The control processing device retrieves connection information from this database, edits it as appropriate, and displays it on the equipment display terminal device for centralized monitoring, allowing maintenance operators to understand the connection status of each device and manage and operate the transmission system. It has become. As the scale of the system increases, updating of the database due to device switching becomes a problem and a solution is desired.

[Conventional technology]

FIG. 5 is a conceptual diagram of a transmission path monitoring system to which the present invention is directed.

As shown in the figure, a plurality of transmission facilities A, B, C, and D, such as multiplex communication devices with different multiplexing layers, are provided at a transmission terminal station. Transmission equipment A, B.

C is, for example, a digital multiplex conversion facility whose multiplicity decreases in that order, and each type of transmission facility A, B, C1D is a plurality of devices of the same type AI, A2. - An, Bl, B2.
-Bn, C1, C2, -Cn, etc.
For example, 1 to (n-1) are in active use, and n is reserved.1, each device converts multiple channels (2 channels in the figure) from the lower-order equipment (lower side) into - channels. It has a bidirectional transmission function that multiplexes and transmits and demultiplexes and receives in the opposite direction.

The input/output channels (terminals) of the current device are each assigned a transmission path name (ABiBCl) indicating the name of the transmission line it has.
etc.), and when a fault occurs in a certain device, the operator is informed of the transmission path affected by the faulty device, allowing the operator to quickly take action.

The supervisory control processing device 1 constantly monitors these transmission facilities via the supervisory control line 2, and when it detects that a failure has occurred in the current device, the transmission line passing through the failed device is The connection status between devices is automatically switched and controlled to maintain the transmission path in a normal state so that the transmission path goes through the backup device.

The storage device 11 of the supervisory control processing device 1 stores connection status information indicating which device is connected to the current device, higher-order side transmission equipment, and lower-order side transmission equipment, and which transmission path is configured. A connection status master file lla is provided, and the information in this connection status mask file is edited and outputted as appropriate according to the requests from the display terminal device ■2, and the connection status of the equipment can be maintained and operated in the event of equipment failure, etc. In such a system, when a failure occurs in the active device that handles a certain transmission path in a certain transmission facility and automatic switching is performed to the backup device, the connection status master file is and set new connection information on the switching destination device (spare device).
It is necessary to perform processing such as erasing the connection information of the switching source (faulty device) that has been disconnected from the transmission path.

Conventionally, an operator manually inputs update data into the five columns of the connection status mask file via the keyboard 14, sets new connection status information for the switchover destination device, and then updates the connection status of the switchover destination device. I was working on erasing the status information.

[Problem to be solved by the invention]

Many transmission path names are relatively long, and as multiplicity increases and the number of channels per device increases, each time a device is switched, the transmission path name and the opposite channel (terminal) of the switching destination device are Conventional methods in which an operator re-enters connection status information such as device/terminal names are time consuming and prone to input errors.

The present invention was created in view of the above-mentioned problems, and an object of the present invention is to eliminate the need to re-enter transmission path names when switching devices in a transmission path monitoring and control system.

[Means to solve the problem]

FIG. 1 is a diagram showing the principle of the transmission path name management system of the present invention.

The above problem arises because, as shown in Fig. 1, a transmission line is constructed by connecting a plurality of transmission facilities A, B, and C, each having a working device B1 and a backup device Bn, with an overhead wire, and the supervisory control processing device 4 detects a failure in the active equipment Bl, the transmission line automatically switches and controls the connection state of the overhead wires so that the transmission line passes through the standby equipment Bn. a connection status table 43 that stores connection status information consisting of a terminal name, a transmission line name handled by the terminal, and a device name/terminal name to which the terminal is connected;
A rewriting means 42 is provided which rewrites the connection information in the connection state table 43 based on the switching control information 41, and when switching devices, the rewriting means 42 adds the information of the device 81 of the switching destination to the connection state table of the device Bn of the switching destination. This problem is solved by the transmission path name management method of the present invention, which is characterized by moving the connection information and updating the connection information in the connection status table of the connection destination device At, CI to one corresponding to the switching destination device Bn. .

[Effect]

When switching from the active device to the standby device is performed, the connection status table of the device newly connected to the transmission path inherits the connection status information of the switching destination device, and also changes the connection status of the connection status table of the destination device. Since the information is also updated in the switching destination device, there is no need for the operator to input data from outside to update the database due to switching, eliminating input errors and errors in the database, and reducing the burden on the operator.

〔Example〕

The present invention will be described in detail below with reference to the accompanying drawings.

FIG. 2 is an explanatory diagram of device switching to which the method of the present invention is applied, FIG. 3 is a diagram showing an example of the configuration of a connection state table, and FIG. 4 is a flowchart of connection state table rewriting processing.

Hereinafter, the same reference numerals represent the same objects throughout the figures.

In FIG. 2, a plurality of transmission facilities A, B, and C, such as multiplex communication devices of different multiplexing hierarchies, are connected by inter-beam wires. Equipment A, B, and C are, for example, digital multiplex conversion equipment whose multiplicity decreases in that order, and each type of transmission equipment A, B
, C, and D are a plurality of devices of the same type A1. A2. - An, B
l, B2. -Bn, CI, C2, -Cn, etc., and, for example, 1 to (n1) are in use, and n is in reserve. Each device multiplexes multiple channels (two channels in the figure) from the lower-order equipment (lower-order side) into two channels and transmits it to the upper-order equipment (higher-order side) (transmission: S). It has a bidirectional transmission function that separates one channel from the next-side transmission equipment into a plurality of channels (two channels in the figure) and transmits them to the lower-order transmission equipment (reception, R). In order to specify the transmission path between devices, a transmission path name such as API is set on the overhead wire.This transmission path name is different for the same terminal on the sending side S and the receiving side R. A name can be given.

The figure shows a case where different transmission path names are set on the transmitting side and the receiving side. That is, in the transmission path between terminal Bll of device Bl and terminal A12 of device A1 to which it is connected, the transmission path name ABI is set on the sending side (S), and the transmission path name abl is set on the receiving side (R). It is assumed that

FIG. 3 is a diagram showing an example of the configuration of a connection status table.
43゛ is for equipment B where the equipment was switched.
indicate the connection destination of equipment B and equipment C, respectively. This connection status table 43, 43' stores connection status information such as which terminal of the opposite device the input/output channel (terminal) of each device is connected to and what transmission path name is set. It is formed on a storage device within the supervisory control processing device.

This connection status table 43.43'' is divided into sending side (S) and receiving side (R) for each equipment, and each is divided by equipment name, and within each equipment, the input/output channel of that equipment is divided into For each terminal representing the connection destination device, connection state information 43a consisting of a connection destination device name, a channel (terminal) name of the connection destination device, and a transmission path name set on the connecting overhead line with the connection destination device;
43a" is written. For example, in figure (a), equipment B
In the contents of the table, connection destinations and transmission path names are written for all terminals of the current device Bl before switching. For example, the connection state information 43a of the terminal Bll connected to equipment A includes the connection destination device name AI, the connection destination terminal name A
1.2. Sending side transmission path name ABl#, receiving side transmission path name ab
l# is written. The # symbol is an additional symbol indicating that the transmission path names for transmission and reception are different at the same terminal, or that the transmission path name is set for only one of them.

In such a transmission system, for example, if a failure occurs in equipment B1 of transmission equipment B, the supervisory control processing equipment that constantly monitors all equipment in each equipment via the monitoring line will detect this failure and As shown by the dotted line in the figure, switching control is performed to switch the line that the faulty device had received to the spare device Bn within the same facility.

The names of the switching source/switching destination devices used in this switching control are managed by the supervisory control processing device as switching control information.

After the above switching control has been performed, the supervisory control processing device is controlled by the connection state table rewriting program, and while referring to the switching control information indicating the correspondence between the switching source device and the switching destination device, rewrites the connection state table. The process is automatically performed as follows according to the flowchart shown in FIG.

First, transmission path name rewriting processing is specified.

The following explanation is about the process of rewriting the connection state table of the transmission facility B that has undergone failure switching in FIG. 3(a).

Step l; First terminal of switching source device B1 (Bl1)
Extract.

Step 2: Extract connection status information including the transmission path name, ie, ABI #, set in the switching source terminal (B11).

Step 3. Extract the switching destination device name Bn and terminal name Bnl.

Step 4: If rewriting is specified on one side (only one side is transmitting or receiving), compare the transmission path name of the switching source terminal and the transmission path name of the opposite direction of the switching tip terminal, and if they are the same, , delete the # (unidirectional symbol) added after the transmission path name in both the local direction and the opposite direction. If the transmission path name of the switching source is different from the transmission path name in the opposite direction of the switching tip, a unidirectional mark # is added after the transmission path name in the opposite direction and after the transmission path name in the own direction. In the case of this embodiment, the transmission path name is different for transmission and reception, and the terminal Bn of the backup device Bn to which switching is made
Since no transmission path name is set for l, the # symbol is left as is.

Step 5: Write the connection state information 43a including the transmission path name (including the # symbol) to the switching terminal Bnl and delete the connection state information 43a from the column of the switching source terminal Bll.

Through the above processing, the connection state information of the switching source terminal Bll is transferred to the switching tip terminal Bnl.

The following explanation is about the updating process of the connection destination equipment table shown in FIG. 3(b).

Step 6: Extract the device name A1 and terminal name A12 of the connection destination connected to the switching source terminal Bll.

Step 7: Rewrite the connection destination device name and terminal name in the column of terminal A12 of connection destination device group 1 to Bn and Bnl, respectively.

Step 8: Steps 1 to 7 are repeated until the final terminal of the switching source device is reached, and the process is terminated when the final terminal is reached.

Through the above processing, the connection status tables for all of the switching destination device, switching source device, and connection destination device of the switching source device are updated to post-switching connection status information. Furthermore, in this embodiment, even if the transmission path name becomes the same on the transmitting side and the receiving side of the same terminal due to device switching, or conversely, even if the transmission path name becomes different, the unidirectional mark is automatically transmitted. Delete/add to route name.

As explained above, since the transmission path name is automatically inherited by the switching destination device on the connection information table in the supervisory control processing device, there is no need for the operator to input the transmission path name, and database updates due to input errors are avoided. It becomes possible to eliminate errors and troublesome procedures.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to eliminate the need for the operator to re-enter the transmission path name when switching devices, lighten the burden on the operator, and eliminate input errors when updating the database, thereby managing the transmission path. This makes it possible to realize rationalization and high reliability.

[Brief explanation of drawings]

FIG. 1 is a principle diagram showing the transmission path name management method of the present invention. FIG. 2 is an explanatory diagram of device switching to which the method of the present invention is applied. FIG. 3 is an example of the configuration of a connection status table. 4 is a flowchart of connection state table rewriting processing, and FIG. 5 is a conceptual diagram of a transmission path monitoring and control system to which the present invention is directed. In the figure, A, B, C - transmission equipment, AI, A2..., Dn
- (transmission) device, switch, A11. ~Anl, Bll, ~Bnl, C1l -C1
3-device terminal, 4--control processing device, 41...
・Switching control information, 42-Rewriting means (program), 43.43' ・-Connection status table, 43a, 43a
' - one connection state information.

Claims (1)

[Claims] A plurality of transmission facilities (A, B, C) having active equipment (B1) and standby equipment (Bn) are connected by overhead wires to form a transmission path, and a supervisory control processing device ( 4) is the current device (B
In a transmission system that automatically switches and controls the connection state of overhead wires so that when a failure in 1) is detected, the transmission line passes through a standby device (Bn), the monitoring control processing device (4) is configured to control each device. A connection status table (4
3), and rewriting means (42) for rewriting the connection information in the connection state table (43) based on the switching control information (41).
), and the rewriting means (42
) moves the connection status information of the switching source device (B1) to the connection status table of the switching destination device (Bn), and
A transmission path name management method characterized by updating connection state information in a connection state table of a connection destination device (A1, C1) to one corresponding to a switching destination device (Bn).