JP2511719B2 - Subscriber service relief method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a subscriber service relief system, and more particularly, in a distributed control exchange composed of a plurality of exchange modules.
When a failure or congestion occurs in one switching module that cannot be recovered by the module itself, service is restored promptly by automatically replacing the subscriber accommodated in that module with another normal replacement module. Regarding the method.

[Conventional technology]

2. Description of the Related Art Conventionally, a method of duplicating a device system has been adopted as a countermeasure against a hardware failure of an exchange. Normally, one system operates, and when a failure occurs in that system, the other standby system takes over to recover from the failure. In addition, startup with a backup file is adopted as a measure against software failures.

[Problems to be Solved by the Invention]

Conventionally, one subscriber switching system has a dual configuration, but in the event of a failure of both bird systems,
I can't handle it. Even in the case of a software failure, the restart processing using the backup file is performed, but there are cases where it does not start up. In these cases, the present invention promptly provides service by replacing the subscriber accommodated in the failed exchange module with another operable exchange module without waiting for the search and repair of the cause. The purpose is to recover.

In addition, accommodation replacement of subscribers is usually accompanied by construction work, which requires a maintenance person to set information such as accommodation location information of the subscribers to be accommodated, which is time-consuming. It is an object of the present invention to automatically perform accommodation replacement after a failure has occurred and to quickly recover service.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a distributed control switch comprising a plurality of exchange modules, a plurality of subscriber circuits, a plurality of exchange modules, and a mechanism for electronically connecting and switching the plurality of subscriber circuits. A means for detecting a failure, a means for deciding a replacement module to be replaced and a housing position in the replacement module corresponding to the position on the side of the replacement module that accommodates the call signal path from the subscriber circuit, and a subscriber of the replacement module. A means for adding the accommodation replacement subscriber's portion to the subscriber data of the accommodation module of the accommodation replacement destination by using the data backup, and a portion relating to the accommodation replacement subscriber of the incoming / outgoing service analysis section of the accommodation module of the accommodation replacement destination are changed. It is characterized by having means.

Further, it is characterized by having an exchange module that does not accommodate subscribers in normal times.

[Action]

Since the present invention is provided with the above configuration, when a serious failure occurs in the replacement module, the subscriber of the failure replacement module is replaced with another normal replacement module to search for and repair the failure location. Service can be restored quickly without waiting.

Further, it is possible to omit the work for the maintenance person to set the accommodation position information and the like.

 Embodiments will be described below with reference to the drawings.

〔Example〕

Here, a plurality of subscriber circuits 1 as shown in FIG.
A distributed control exchange composed of three exchange modules A, B and C, an electronic connection mechanism 3 and a management module 4 will be described as an example. The electronic connection mechanism 3 establishes a call path between the switching module 2 and the subscriber circuit 1. The management module 4 includes a fault detection unit 4-1 having a function of detecting a fault in each exchange module 2, and a replacement destination corresponding to a position (accommodation position) on the exchange module side that accommodates a call signal path from the subscriber circuit 1. Replacement module 4-2 having a function of determining the replacement module and the storage position in the replacement module
And backup of subscriber data of each exchange module 5
A backup reading unit 4-3 and a control signal input / output unit 4-having a function of reading the subscriber data of the accommodation replacement target from the
4 and an execution management unit 4-5. The execution management unit 4-5 uses the failure detection unit 4-1 to the control signal input / output unit 4-4 to join the subscriber data management unit 2-1 of the replacement module of the replacement target with the replacement replacement subscribers. It has a function of adding the customer data, and a function of changing the portion related to the accommodation replacement subscriber of the outgoing service analysis unit 2-2 and the incoming service analysis unit 2-3 of the exchange module of the accommodation change destination. The control signal input / output unit 4-4 of the management module 4, the control unit 3-1 of each electronic connection mechanism 3, and the control signal input / output unit 2-5 of the exchange module.
A control signal line is provided between them. Hereinafter, a first embodiment according to the first invention and a second embodiment according to the second invention will be described separately.

Embodiment 1: As shown in FIG. 2, each of the exchange modules A to C has 100 terminals (# 1 to # 100) which are normally used, and when one exchange module fails, The number of terminals (# 10 in this case) that can accommodate the subscribers accommodated in the other two modules in a distributed manner (# 10)
1 to # 150). An example of replacing the subscriber accommodated in the exchange module A with the exchange modules B and C when a serious failure that cannot be dealt with by the single module occurs in one of the exchange modules A is shown below. .

Management module 4 for severe failure of exchange module A
The fault detection unit 4-1 (FIG. 1) of the execution management unit 4
The name of the fault replacement module is transmitted to -5 (Fig. 1).

The execution management unit 4-5 (Fig. 1) is the accommodation change management unit 4-
Referring to the accommodation replacement management table (registration of the replacement module and accommodation location of the accommodation replacement destination corresponding to the accommodation location of each exchange module) shown in FIG. 3 in 2 (FIG. 1), one subscriber unit or multiple subscribers Replacement module A sequentially for each unit
The control signal input / output unit 4-4 (first section) disconnects the path between the subscriber circuit obstruction exchange modules and sets the path to another normal exchange module in the order of accommodating position.
(Fig.) To the control unit 3-1 (Fig. 1) of the electronic connection mechanism. For example, the subscriber 1 normally has a call signal path with the accommodating position # 1 of the exchange module A, but disconnects this and reconnects with the accommodating position # 101 of the exchange module B.

The execution management unit 4-5 (Fig. 1) provides the subscriber exchange backup module 4-3 (Fig. 1) with the failure exchange module name and the accommodating position as search keys, and the subscriber data backup 5 (Fig. 1). From FIG. 1), the outgoing translation word (comprising information such as calling terminal type, telephone number, calling service type, etc.) of the subscriber subject to accommodation change is read. Next, the subscriber data backup reading unit 4-3 using the flight number number and fault exchange module name included in the transmitted translated word as a search key.
(Fig. 1).
It is composed of information such as the receiving subscriber accommodation position and the originating service type). Then, a control signal for adding the incoming translation word and the outgoing translation word to the subscriber data of the accommodation replacement destination module is supplied from the control signal input / output unit 4-4 (FIG. 1) to the subscriber data management unit 2 of the accommodation replacement destination module. -1 (first
(Figure) to send. At that time, the outgoing translation word is added to the storage area corresponding to the accommodation position of the accommodation replacement module, and the incoming translation word is added by rewriting the accommodation position information to the accommodation position of the accommodation replacement module. An example is shown in FIG. From subscriber data backup to exchange module A storage location # 1
The outgoing translation word of the subscriber 1 accommodated in is read. The outgoing translation word is allocated in the subscriber data management section 2-1 (FIG. 1) in correspondence with the accommodation position, and is stored in the outgoing translation word storage area corresponding to the accommodation position # 101 of the exchange module B.
Add the outgoing translation for subscriber 1 of module A. Next, the incoming translation word corresponding to the telephone number 0101 included in the outgoing translation word is read from the subscriber data backup 5.
The incoming translation is assigned to the telephone number corresponding to the telephone number in the subscriber data management unit 2-1 (FIG. 1), and is added to the subscriber data storage area corresponding to the telephone number 0101 of the exchange module B. The same is true for other relocated subscribers.

The execution management unit 4-5 (FIG. 1) is based on the telephone number of the replaced subscriber and the accommodation destination module name, and the transmission service analysis unit 2-2 (FIG. 1) of all exchange modules and accommodation replacement. Incoming service analysis unit 2-3 of the destination module
A control signal for changing (FIG. 1) is sent. For example, in FIG. 5, the location corresponding to the number 0101 of the subscriber 1 who has been relocated in the transmission service analysis section of each module is changed to the B module missing. In addition, the location corresponding to 0101 in the incoming service analysis unit of the B module is changed to the own module missing.

Embodiment 2: As shown in FIG. 6, the exchange modules A and B normally accommodate subscribers, while the exchange module C normally does not accommodate subscribers. In such a configuration, an example in which the subscriber accommodated in the exchange module A is replaced with the module C when a serious failure that cannot be dealt with by the single module occurs in one exchange module A will be described below. .

Management module 4 for severe failure of exchange module A
The fault detection unit 4-1 (FIG. 1) of the execution management unit 4
The name of the fault replacement module is transmitted to -5 (Fig. 1).

The execution management unit 4-5 (Fig. 1) is the accommodation change management unit 4-
Referring to the accommodation change management table (registering the exchange module and accommodation position of the accommodation change destination corresponding to the accommodation position of each exchange module) shown in FIG. 7 in 2 (FIG. 1), one subscriber unit or a plurality of subscribers Replacement module A sequentially for each unit
The control signal input / output unit 4-4 (first section) disconnects the path between the subscriber circuit obstruction exchange modules and sets the path to another normal exchange module in the order of accommodating position.
(Fig.) To the control unit 3-1 (Fig. 1) of the electronic connection mechanism. For example, the subscriber 1 normally has a call signal path with the accommodation position # 1 of the exchange module A, but disconnects the call signal path and reestablishes with the accommodation position # 1 of the exchange module C.

The execution management unit 4-5 (Fig. 1) provides the subscriber exchange backup module 4-3 (Fig. 1) with the failure exchange module name and the accommodating position as search keys, and the subscriber data backup 5 (Fig. 1). From FIG. 1), the outgoing translation word of the subscriber subject to accommodation change is read. Then, the telephone number exchange failure exchange module name included in the outgoing translation word is given as a search key to the subscriber data backup reading unit 4-3 (FIG. 1), and the incoming translation word is read in the same manner. Then, a control signal for adding the incoming translation word and the outgoing translation word to the subscriber data of the accommodation replacement destination module is added to the control signal input / output unit 4-4 (first
(Fig.) To the subscriber data management unit 2-1 (Fig. 1) of the accommodation replacement destination exchange module. At that time, the outgoing translation word is added to the storage area corresponding to the accommodation position of the accommodation replacement module, and the incoming translation word is added by rewriting the accommodation position information to the accommodation position of the accommodation replacement module. An example is shown in FIG. From subscriber data backup to exchange module A
The outgoing translation word of the subscriber 1 accommodated in the accommodation position # 1 is read. The outgoing translation word is the subscriber data management unit (1st
In the figure), the outgoing translation word of the subscriber 1 of the exchange module A is added to the outgoing translation word storage area which is assigned to the accommodation position and corresponds to the accommodation position # 1 of the exchange module C. Next, the incoming translation word corresponding to the telephone number 0101 included in the outgoing translation word is read from the backup of the subscriber data. The incoming translation word is the subscriber data management unit 2-1 (first
In the figure), it is assigned to correspond 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 is true for other relocated subscribers.

The execution management unit 4-5 (FIG. 1) is based on the telephone number of the replaced subscriber and the replacement module name of the replacement module, and the transmission analysis unit 2-2 (FIG. 1) and the replacement of all the replacement modules. It sends a control signal to change the incoming service analyzer 2-3 (Fig. 1) of the exchange module. For example, as shown in FIG. 9 and FIG. 10, the location corresponding to the subscriber number 0101 of the subscriber 1 that has been relocated in the outgoing service analysis section of each exchange module is changed to C module missing. Also, in the incoming service analysis section of the C module, the part corresponding to 0101 is changed to the module itself.

〔The invention's effect〕

As described above, according to the present invention, when a serious failure occurs in the replacement module, the subscriber of the failure replacement module is replaced with another normal replacement module so that the failure location is not searched and repaired without waiting. Service can be restored quickly.

Further, it is possible to omit the work for the maintenance person to set the accommodation position information and the like.

[Brief description of drawings]

FIG. 1 is an implementation example of a subscriber accommodation replacement system, FIG. 2 is an explanatory diagram of a change of a path between a subscriber circuit and a switching module of the first embodiment, and FIG. 3 is a configuration diagram of an accommodation replacement management table of the first embodiment. 4, FIG. 4 is an additional explanatory diagram of subscriber data of the exchange module B of the first embodiment, FIG. 5 is an explanatory diagram of change and change state of the incoming / outgoing service analysis unit of the first embodiment, and FIG. 6 is of the second embodiment. FIG. 7 is an explanatory diagram of a change of a path between a subscriber circuit and a switching module, FIG. 7 is a configuration diagram of the accommodation replacement management table of the second embodiment, and FIG. 8 is an additional explanatory diagram of subscriber data of the switching module C of the second embodiment. FIG. 9 is a diagram for explaining a modification of the calling / calling service analysis unit according to the second embodiment, and FIG. 1 ... Subscriber circuit, 2 ... Exchange module, 2-1 ...
Subscriber data management section, 2-2 ... Transmission analysis section, 2-3 ...
... incoming call analysis section, 2-4 ... call processing execution section, 2-5 ... control signal input / output section, 3 ... electronic connection mechanism, 3-1 ... control section, 4 ... management module, 4- 1 ... Fault detection unit,
4-2 ... Accommodation change management unit, 4-3 ... Subscriber data backup reading unit, 4-5 ... Execution management unit, 5 ... Subscriber data backup

Claims (2)

(57) [Claims] 1. A distributed control switching system comprising a plurality of switching modules, a plurality of subscriber circuits, a plurality of switching modules, and a structure for electronically connecting and switching the plurality of subscriber circuits, wherein a failure of the switching modules is detected. Means, means for deciding a replacement module to be replaced and a position to be housed in the replacement module corresponding to the position on the side of the replacement module that houses the call signal path from the subscriber circuit; and subscriber data of the replacement module. Means for adding the accommodation replacement subscriber's data to the subscriber data of the accommodation replacement destination switching module by using the backup of the above, and the portion related to the accommodation replacement subscriber of the outgoing / incoming service analysis section of the accommodation replacement destination exchange module A subscriber service relief system characterized by having means. 2. The subscriber service relief system according to claim 1, wherein the plurality of exchange modules have an exchange module which does not accommodate a subscriber in a normal time.