JPH03240349A - Subscriber service relieve system - Google Patents

Abstract

PURPOSE:To recover the service quickly by accommodating a subscriber having been accommodated in an exchange module with a fault taking place therein to other exchange module again. CONSTITUTION:When a fault detections section 4-1 of a management module 4 detects an important fault of an exchange module A or the like in, e.g. a decentralized control exchange, a subscriber data backup read section 4-3 of the module 4 reads a subscriber data of an accommodation replacement object from a backup section 5 for subscriber data and an execution management section 4-5 references a management table of an accommodation replacement management section 42, interrupts a subscriber circuit 1 corresponding to the module A via a control signal input output section 4-4 and accommodates the circuit 1 to exchange modules B, C in which the content of the outgoing call analysis section and the incoming call analysis section is rewritten. Then the circuit corresponding to terminals not in use normally in the modules B, C is connected automatically and the exchange is realized, in which the subscriber service is quickly recovered without awaiting the retrieval of a fault location and its repair.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a subscriber service relief system, and in particular, in a distributed control exchange consisting of a plurality of exchange modules, when one exchange module suffers a failure or congestion that cannot be recovered by a single module. The present invention relates to a method for quickly restoring service by automatically reaccommodating subscribers accommodated in that module to other normal exchange modules when a failure occurs.

[Conventional technology]

Conventionally, a method of duplicating equipment systems has been adopted as a countermeasure against hardware failures in switching equipment. Normally, one system is operated, and if a failure occurs in that system, the other standby system takes over to recover from the failure. Additionally, startup using a backup file has been adopted as a countermeasure against software failures.

[Problem to be solved by the invention]

Conventionally, a duplex configuration has been adopted in one subscriber exchange, but it cannot deal with the case where a hardware failure occurs in both systems. Even in the case of a software failure, restart processing is performed using backup files, but sometimes the system does not start up.

In these cases, the present invention quickly provides service by reaccommodating the subscriber accommodated in the faulty replacement module to another operable replacement module without waiting for the cause to be found and repaired. The purpose is to recover.

In addition, reaccommodating a subscriber usually involves construction work and requires a maintenance person to set information such as the accommodation location information of the subscriber to be reaccommodated, which takes time.

An object of the present invention is to automatically perform accommodation replacement after a failure occurs and quickly restore service.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a plurality of exchange modules, a plurality of subscriber circuits, and a mechanism for electronically connecting and switching the plurality of exchange modules and the plurality of subscriber circuits. In a distributed control exchange consisting of a means for detecting a fault in a switching module, and a means for detecting a fault in a switching module, a switching module to be replaced and its accommodation position within the switching module are determined based on the position of the switching module that accommodates the call signal path from the subscriber circuit. means for adding a replacement subscriber bone to the subscriber data of the replacement destination exchange module using a backup of the subscriber data of the replacement module; It is characterized by having means for changing the part related to the replaced subscriber.

Furthermore, it is characterized by having a switching module that does not accommodate subscribers during normal times.

[Effect]

Since the present invention has the above configuration, when a serious failure occurs in a replacement module, the fault location can be searched and repaired by replacing the subscriber of the faulty replacement module with another normal replacement module. Service can be quickly restored without waiting.

Furthermore, maintenance personnel can omit the work of setting storage location information and the like.

Examples will be described below based on the drawings.

〔Example〕

Here, a plurality of subscriber circuits l and A as shown in FIG.
, B, and C, a distributed control exchange consisting of three exchange modules 2, an electronic connection mechanism 3, and a management module 4 will be explained as an example. An electronic connection 3 establishes a call path between the switching module 2 and the subscriber circuit 1. The management module 4 includes a failure detection section 4-1 having a function of detecting a failure in each exchange module 2, and a replacement destination corresponding to the position (accommodation position) on the side of the exchange module that accommodates the call signal path from the subscriber circuit 1. A replacement management unit 4- has a function of determining the replacement module and the storage position within the replacement module.
2, a backup reading section 4-3 having a function of reading subscriber data of the person to be replaced from the backup 5 of subscriber data of each exchange module, and a control signal input/output section 4.
-4 and an execution management section 4-5. The execution management section 4-5 uses the above-described failure detection section 4-1 to control signal input/output section 4-4 to add the replacement subscriber bone to the subscriber data management section 2-1 of the exchange module to be replaced. It has a function of adding subscriber data, and a function of changing the portions of the outgoing service analysis section 2-2 and the incoming call service analysis section 2-3 of the exchange module to be reaccommodated, regarding the reaccommodation subscriber. The control signal input/output section 4-4 of the management module 4, the control section 3-1 of each electronic connection mechanism 3, and the control signal input/output section 2- of the exchange module.
A control signal line is provided between 5 and 5. Hereinafter, a first embodiment according to the first invention and a second embodiment according to the second invention will be explained separately.

Embodiment 1: As shown in FIG. 2, each replacement module A to C has 100 terminals (#1 to #l00) that are normally used, and in addition, if one replacement module fails, It is provided with a number (50 in this case) of dedicated terminals (#101 to #150) for reaccommodating the subscribers accommodated therein in a distributed manner to the remaining two modules. An example in which subscribers accommodated in exchange module A are transferred to exchange modules B and C when a serious failure that cannot be handled by the module alone occurs in one of exchange modules A is shown below. .

■ Manage the severe failure of replacement module A with module 4.
The fault detecting unit 4-1 (FIG. 1) of the computer detects the fault and transmits the name of the fault replacement module to the execution management unit 4-5 (FIG. 1).

■ The execution management section 4-5 (Fig. 1) is the accommodation management section 4-5.
2 (Fig. 1), the accommodation relocation management table shown in Fig. 3 (
(Register the replacement module and the storage location corresponding to the storage location of each replacement module), and remove the faulty subscriber circuits for each subscriber or multiple subscribers in order of the storage location of the faulty replacement module A. A control signal input/output unit 4-4 (Figure 1) sends a control signal to disconnect the path between exchange modules and set up a path with another normal exchange module.
from there to the control unit 3-1 (FIG. 1) of the electronic connection mechanism.

For example, subscriber 1 typically has switch module A in storage location #
A communication signal path is established between the exchange module B and the housing position #101, but this is disconnected and re-established between the exchange module B and the accommodation position #101.

■ The execution management unit 4-5 (Fig. 1) gives the name of the faulty exchange module and the accommodation position as a search key to the subscriber data backup succession unit 4-3 (Fig. 1), and performs the subscriber data backup 5. (FIG. 1), the calling translation word (consisting of information such as calling terminal type, telephone number, calling service type, etc.) of the subscriber to be replaced is read out. Next, the subscriber data backup successive unit 4-3 (
(Fig. 1), and similarly read the incoming translation word (consisting of information such as the type of receiving terminal, location of receiving subscriber, and type of originating service). Then, a control signal for adding the incoming translated word and the outgoing translated word to the subscriber data of the destination module is sent from the control signal input/output section 4-4 (FIG. 1) to the subscriber data management section 2 of the destination exchange module. -1 (Figure 1). At this time, the outgoing translated word is added to the storage area corresponding to the accommodation position of the destination exchange module, and the incoming translated word is added by rewriting the accommodation position information to the accommodation position of the destination exchange module. An example is shown in FIG. The transmitted translated word of subscriber 1 accommodated in accommodation position #l of exchange module A is read from the subscriber data backup. The outgoing translated words are assigned in the subscriber data management section 2-1 (Fig. 1) in accordance with the storage location, and the outgoing translated word storage area corresponding to the storage location #101 of the exchange module B is assigned to the subscriber of module A. Add the outgoing translation of l. Next, the incoming translated word corresponding to the telephone number 0101 included in the outgoing translated word is read from the subscriber data backup 5. The incoming translated words are assigned to correspond to telephone numbers in the subscriber data management section 2-1 (FIG. 1), and are added to the subscriber data storage area corresponding to telephone number 0101 of exchange module B. The same applies to other replaced subscribers.

■ The execution management unit 4-5 (Fig. 1) uses the telephone number of the replaced subscriber and the name of the module to which it is replaced to send the outgoing service analysis unit 2-2 (Fig. 1) of all exchange modules and Incoming call service analysis section 2-3 (
(Fig. 1). For example, in FIG. 5, the location corresponding to the number 0101 of the relocated subscriber 1 in the outgoing service analysis section of each module is changed to the location of the B module. Also, in the incoming call service analysis section of module B, the part corresponding to 0101 is changed to indicate that the module has failed.

Embodiment 2: As shown in FIG. 6, switching modules A and B accommodate subscribers during normal times, but switching module C does not accommodate any subscribers during normal times. In such a configuration, an example in which the subscribers accommodated in exchange module A are transferred to module C when a serious failure that cannot be handled by the module alone occurs in one exchange module A is shown below. .

■ Manage the severe failure of replacement module A with module 4.
The failure detection unit 4-1 (Fig. 1) of the
-5 (Figure 1) Tell the name of the faulty exchange module.

■ The execution management section 4-5 (Fig. 1) is the accommodation management section 4-5.
2 (Fig. 1), the accommodation relocation management table shown in Fig. 7 (
(Register the replacement module and the storage location corresponding to the storage location of each replacement module), and remove the faulty subscriber circuits for each subscriber or multiple subscribers in order of the storage location of the faulty replacement module A. A control signal input/output unit 4-4 (Figure 1) sends a control signal to disconnect the path between exchange modules and set up a path with another normal exchange module.
from there to the control unit 3-1 (FIG. 1) of the electronic connection mechanism. For example, subscriber l normally has a call signal path established between him and exchange module A at accommodation position #1, but this is disconnected and re-established between him and exchange module C at accommodation position #1.

■ The execution management unit 4-5 (Fig. 1) gives the name of the faulty exchange module and the accommodation position as a search key to the subscriber data backup succession unit 4-3 (Fig. 1), and performs the subscriber data backup 5. The transmitted translated words of the subscriber to be replaced are read from (Fig. 1).

Next, the telephone number fault exchange module name included in the outgoing translated word is given as a search key to the subscriber data backup reading section 4-3 (FIG. 1), and the incoming translated word is read out in the same manner. Then, a control signal for adding the incoming translated word and the outgoing translated word to the subscriber data of the destination module is sent from the control signal input/output section 4-4 (FIG. 1) to the subscriber data management section 2 of the destination exchange module. -1 (Figure 1).

At this time, the outgoing translated word is added to the storage area corresponding to the accommodation position of the destination exchange module, and the incoming translated word is added by rewriting the accommodation position information to the accommodation position of the destination exchange module. An example is shown in FIG.

The transmitted translated word of subscriber 1 accommodated in accommodation position #l of exchange module A is read from the subscriber data backup. The outgoing translated words are assigned in correspondence with the accommodation positions in the subscriber data management unit (Fig. 1), and the outgoing translated words of subscriber 1 of the exchange module A are assigned to the outgoing translated word storage area corresponding to the accommodation position #1 of the exchange module C. Add outgoing translation words. Next, the incoming translated word corresponding to the telephone number 0101 included in the outgoing translated word is read from the subscriber data backup. The incoming translated words are sent to the subscriber data management section 2-1 (first
In the figure), the subscriber data storage area is allocated corresponding to the telephone number, and is added to the subscriber data storage area corresponding to the telephone number 0101 of the exchange module C. The same applies to other replaced subscribers.

■ The execution management unit 4-5 (Fig. 1) uses the telephone number of the replaced subscriber and the name of the exchange module to which the replacement is to be performed to send the call analysis unit 2-2 (Fig. 1) of all exchange modules and A control signal is sent to change the incoming call service analysis unit 2-3 (FIG. 1) of the replacement module. For example, as shown in FIG. 9 and FIG.
Change the part corresponding to 1 to C module omission.

Also, in the incoming call service analysis section of the C module, 010
Change the part corresponding to 1 to indicate that the module is missing.

〔Effect of the invention〕

As explained above, when a serious failure occurs in a replacement module, the present invention allows the subscriber of the faulty replacement module to be relocated to another normal replacement module without waiting for the failure to be located and repaired. Service can be restored quickly.

Also, maintenance personnel can save the work of setting storage location information, etc.

[Brief explanation of drawings]

Fig. 1 is an example of implementation of the subscriber relocation system, Fig. 2 is an explanatory diagram of changing the path between the subscriber circuit and the exchange module in the first embodiment, and Fig. 3 is a configuration diagram of the relocation management table in the first embodiment. , FIG. 4 is an explanatory diagram of addition of subscriber data of exchange module B of the first embodiment, FIG. 5 is an explanatory diagram of changes and change states of the outgoing/receiving service analysis unit of the first embodiment, and FIG. An explanatory diagram of changing the path between the subscriber circuit and the exchange module, FIG. 7 is a configuration diagram of the accommodation relocation management table of the second embodiment, FIG. 8 is an explanatory diagram of addition of subscriber data of the exchange module C of the second embodiment, FIG. 9 is an explanatory diagram of changes made to the call origination/reception service analysis section of the second embodiment, and FIG. 10 is an explanatory diagram of changes made to the origination/reception service analysis section of the second embodiment.

Claims (2)

[Claims] (1) In a distributed control exchange consisting of a plurality of exchange modules, a plurality of subscriber circuits, and a configuration for electronically connecting and switching the plurality of exchange modules and the plurality of subscriber circuits, means for detecting a fault in the exchange module; , means for determining a replacement module and a position in the replacement module corresponding to the position of the replacement module that accommodates the call signal path from the subscriber circuit, and backing up subscriber data of the replacement module. means for adding the amount of the subscriber to be transferred to the subscriber data of the exchange module to which the accommodation is to be made using the method; and means to change a portion related to the subscriber to be accommodated in the outgoing/receiving service analysis section of the exchange module to be accommodated. A subscriber service relief method characterized by having: (2) The subscriber service rescue system according to claim 1, wherein the plurality of exchange modules include exchange modules that do not accommodate subscribers during normal times.