JPH0723107A - Electronic exchange - Google Patents

Abstract

PURPOSE:To reduce maintenance man-hours by providing a means reading a subscriber circuit class and providing a means editing station data and holding the data tentatively, a means executing the test and a means writing the data to a database under the control of a central controller. CONSTITUTION:A central controller 1 extracts the edit result by one subscriber circuit from an edit latch means 5, selects a test procedure corresponding to the class of the subscriber destination in the mount state and starts a test execution means 6. The means 6 started from the controller 1 interrupts lines of designated subscriber circuits 2-1-2-n to give a simulating call to them. In this case, an operation control circuit 3 sends a dialing state to the controller 1. When the controller 1 recognizes the call from any designated subscriber circuit among the subscriber circuits 2-1 to 2-n to be normal, the controller 1 leaves the edit result as it is and controls the means 5 to store the result to a database 7 after re-edit as in the non-mounted state when an error is recognized. Thus, a danger of system-down on the occurrence of a fault is avoided.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a subscriber circuit of an electronic exchange. The present invention is used to add or change a subscriber circuit.

[0002]

2. Description of the Related Art When a subscriber circuit is added, abolished, or changed, an operator directly accesses the subscriber circuit, which is hardware, to change the device, and a database for supplying information to a central control device. The accumulated station data must be changed. The station data is also changed by the operator's command operation by inputting the information on the mounting state of the subscriber circuit and the type information of the subscriber circuit. Therefore,
There may be a case where the actual hardware state and the station data stored in the database do not match due to human error.

As a technique for preventing the occurrence of this inconsistency, JP-A-2-231894 and JP-A-1-19 are available.
Techniques described in JP-A-8895, JP-A-1-248788, etc. are known.

[0004]

Generally, a database for accumulating station data so that the station data will not be lost and the system operation can be continued even if a part of the station data is damaged. Has a dual-system configuration in which two memory devices are synchronously operated. In this case, in the conventional method, changing station data involves command operation input.Therefore, even if the database is duplicated, synchronous operation of both systems is temporarily stopped and single-system operation is performed, and data is written. It is operated so that the copy creation operation is executed after the completion of the operation and the duplex synchronous operation is restored.

Therefore, if any failure occurs in the database during the operation of changing the station data, the system operation may be stopped. Moreover, the number of man-hours required to input the operation is large.

Further, in the above-mentioned conventional techniques for preventing the mismatch between the hardware status and the station data stored in the database, the mismatch is pointed out by the processing on the data. However, it does not actually test the hardware to confirm that there is no discrepancy.

The present invention has been made against such a background, and it is possible to surely eliminate the inconsistency between the hardware state set in the subscriber circuit and the station data input to the database, and It is an object of the present invention to provide an exchange capable of changing station data in a state of dual synchronous operation.

[0008]

According to the present invention, there is provided a central control unit (1), a database (7) connected to the central control unit for holding station data, and a subscriber circuit controlled by the central control unit. Group (2-1, 2-2, 2-3, ...
, 2-n), and a means (4) for reading the mounting state of the subscriber circuit and the subscriber circuit type from the subscriber circuit group, and controlling the central controller (1). The means (5) for editing and temporarily holding the data obtained from the reading means as station data and the test according to the subscriber circuit type based on the data held by the means for editing and temporarily holding Means (6) and means for writing consistent data as a result of this test to the database (7) as station data are characterized.

The database (7) is constituted by a duplicated memory, the writing means includes a means for executing the duplicated memory in a system synchronous operation state, and the means (6) for executing the test is the subscriber. It is desirable to include means in the circuit to generate an interrupt pseudo call.

[0010]

In the present invention, as the subscriber circuit is added or changed,
Edit the data corresponding to the station data once and hold it temporarily. Then, based on the data, a test is automatically executed on the hardware, and when the test result is normal, the temporarily stored data is written to the database. This writing is not executed by an operation command, but is automatically executed by software control when the test result is normal. Therefore, even when the database is performing the duplex synchronous operation, the synchronous control can be continued, and it is not necessary to temporarily perform the single system operation when writing or changing the station data.

[0011]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment of the present invention.

The embodiment of the present invention comprises a central control unit 1, a database 7 connected to the central control unit 1 for holding station data, and subscriber circuit groups 2-1 and 2 controlled by the central control unit 1. -2, 2-3, ..., 2-n, and as a feature of the present invention, a subscriber circuit group 2-.
1, 2-2, 2-3, ..., 2-n are provided with a reading means 4 for reading the mounting state of the subscriber circuit and the subscriber circuit type thereof, and the reading means 4 is obtained from the reading means 4 under the control of the central control unit 1. Editing and holding means 5 for editing and temporarily holding the edited data as station data, a test executing means 6 for executing a test according to the subscriber circuit type based on the data held by the editing and holding means 5, and a test executing means 6 for this test. As a result, data having no contradiction is written in the database 7 as station data. The database 7 is composed of dual memory,
The writing means includes means for executing the duplicated memory in the both-system synchronous operation state, and the test execution means 6 includes means for generating an interruption pseudo call to the subscriber circuit.

Next, the operation of the embodiment of the present invention thus constructed will be described. FIG. 2 is a flow chart showing the operation flow of the embodiment of the present invention.

The control order from the central control unit 1 to the slave unit is sent to the operation control circuit 3 via the interface circuit 8. The operation control circuit 3 analyzes the order, and if it is a call processing order, the subscriber circuits 2-1 and 2-2.
Control n. If it is a reading order, the reading means 4 is controlled. The reading means 4 activated from the operation control circuit 3 collects the mounting / non-mounting information and type information of the subscriber circuits 2-1 to 2-n, and the central control via the operation control circuit 3 and the interface circuit 8. Report the collection result to the device 1. Upon receiving the collection result, the central controller 1 controls the edit holding means 5 to edit the information, and the edit result is temporarily stored in the edit holding means 5.

Next, the central control unit 1 takes out the edited result for each one of the subscriber circuits from the edit holding means 5, and if it is in the mounted state, the type of the subscriber circuit (for example, A, B, ... X).
The test procedure corresponding to is selected, and the test execution means 6 is activated. The test control order from the central controller 1 to the test execution means 6 is also performed via the interface circuit 8.

The test execution means 6 activated by the central control unit 1 makes an interrupt pseudo call to the lines of the designated subscriber circuits 2-1 to 2-n. At this time, the operation control circuit 3 operates in the same manner as the general call processing and notifies the central controller 1 of the call. The central control unit 1 uses the designated subscriber circuits 2-1 to 2-
When the call from n is recognized as normal, the edit result is left as it is, and when it is recognized as abnormal, the edit holding means 5 is controlled so that it is re-edited as unmounted and then stored in the database 7.

[0017]

As described above, according to the present invention, since the central control unit confirms the normality of the subscriber circuit and generates the station data, there is no inconsistency with the actual mounting state and it is artificial. It is possible to store error-free station data in the database, which makes it possible to store even in a dual-configuration database during synchronous operation, avoiding the risk of system downtime when a failure occurs, and maintaining it. This has the effect of reducing man-hours.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing a flow of operations in the embodiment of the present invention.

[Explanation of symbols]

 1 Central Control Unit 2-1 to 2-n Subscriber Circuit 3 Operation Control Circuit 4 Reading Means 5 Edit Holding Means 6 Test Execution Means 7 Database 8 Interface Circuit

Claims (3)

[Claims] 1. A central control unit (1) and a database (7) connected to the central control unit for holding station data.
And a subscriber circuit group (2-1, 2-2, 2-3, ..., 2-n) controlled by the central control unit. Means (4) for reading the circuit mounting state and its subscriber circuit type, and means (5) for editing and temporarily holding the data obtained from this reading means as station data under the control of the central control unit (1). A means (6) for executing a test according to the subscriber circuit type based on the data held by the means for editing and temporarily holding the data; ) And a means for writing to the electronic exchange. 2. The electronic exchange according to claim 1, wherein the database (7) is composed of a duplicated memory, and the writing means includes means for executing the duplicated memory in a synchronous operation state of both systems. 3. An electronic exchange according to claim 1, wherein the means (6) for performing the test includes means for generating an interrupting pseudo-call in the subscriber circuit.