JPS63142753A - Diagnostic system for digital exchange - Google Patents

Abstract

PURPOSE:To prevent a system with a fault from working by starting a diagnostic program when a digital exchange system rises, sequentially executing the diagnosis of respective components in accordance with the diagnostic program, displaying the diagnosed result in a corresponding fault display, and executing the initial diagnosis of a digital exchange. CONSTITUTION:With using the diagnostic program of a program storage means 4, the components 21-2n are sequentially diagnosed, and a display control means 12 displays the diagnosed result of a diagnosis means 10 which recognizes the normality of the components in the fault display corresponding to diagnosis components 6i(i=1-N). If the exchange system is raised, the diagnosis means 10 uses the diagnostic program of the program storage means 4 and sequentially diagnoses the exchange components from a main controller 21. The display control means 12 permits the fault display which corresponds to the diagnosis components to display the diagnosed result. Thus, the fault in the exchange system can be detected in an early stages, and the exchange system can be prevented from working as it is.

Description

[Detailed Description of the Invention] [Summary] A diagnostic program is started when a digital switching system is started up, and the diagnostic program sequentially diagnoses each component device, and the diagnostic results are displayed on a corresponding fault display. Perform initial diagnosis of the digital switch.

[Industrial application field]

The present invention relates to a digital exchange diagnostic method, and more particularly, to a digital exchange diagnostic method for diagnosing each component of the digital exchange before it is put into operation.

The communication system is configured with a digital switch (hereinafter simply referred to as a switch) interposed therebetween.

Switching equipment is made up of multiple component devices, and even if one of the component devices has a failure, it will not be possible to maintain normal switching functions. are being checked.

[Conventional technology]

The conventional diagnostic method for fault checking was as follows. FIG. 4 shows the fault diagnosis system of the exchange.

By pressing the loading key on the exchange panel, IPL is performed on the main memory (MM) 22 from the magnetic tape device 2o. The programs loaded into the main storage device 22 by the IPL include a control program and a diagnostic program. Necessary exchange processing is performed in the exchange under the control of a control program executed by the main controller 24. During the exchange process, when a regular or irregular diagnosis request is made, for example, a diagnosis request from a control program, some or all of the component devices (2
6 is a data channel, 28 is an input/output device, 30 is a bus coupler), and a fault display section 32 indicates the presence or absence of a fault.
I am trying to display it on the display.

[Problem that the invention seeks to solve]

The above-mentioned conventional method starts a diagnostic program in response to a regular or irregular diagnostic request, such as a diagnostic request sent to a program used for exchange control, after the system has been started up, and detects failures in component devices. It checks whether or not a fault is occurring and displays the fault that has occurred. Therefore, with this method, it is only possible to diagnose whether or not there is a failure in the component devices only after the system is put into operation. Therefore, it is not possible to diagnose a fault occurring in a component device in advance when the power is turned on, and the system continues to operate even if such a fault occurs.

The present invention was created in view of such technical problems, and an object of the present invention is to provide a switching equipment diagnostic method that is useful for detecting faults in the initial stage and putting the switching equipment into operation without any faults. do.

[Means for solving problems]

FIG. 1 shows a block diagram of the principle of the present invention. In this figure, 21...2N are each of the constituent devices of the exchange. 4 is a program storage means, which provides a control program in addition to a diagnostic program. 10 is a component device 2 using the diagnostic program in the program storage means 1o.
1...2N sequential diagnosis to confirm the normality of the constituent devices. The diagnosis result of the diagnosis means 10 is displayed on the diagnosis component device 6i by the control means 12.
(i=1...N) The present invention is configured to display the corresponding fault indicator.

[For production]

When the switching system is started up, the diagnostic means 10 uses the diagnostic program in the program storage means 4 to sequentially disconnect the switching system components starting with the main controller 21. The display control means 12 causes the diagnosis result to be displayed on a fault display corresponding to the diagnosis component device.

〔Example〕

FIG. 2 shows the main part of an embodiment of the present invention. When this essential configuration is used as the fault display unit 32 in the system configuration shown in FIG. 4, the present invention can be implemented within that system configuration. In FIG. 2, 50 is a power switch;
2 is a detection circuit that outputs a signal at a predetermined level, for example, a high level, in response to the closing of the switch 50; 54. ...5
4N denotes the constituent devices of the exchange (main controller (CC) 24, main memory (MM) 22, data channel (DCH) 26, input/output device (Ilo) 2 connected via bus 34).
8. Bus coupler (BC) 30 etc. 4, one input receives the output signal of the detection circuit 52, and the other input receives an abnormal signal (switch-on signal) for diagnosing the corresponding component device via the processor bus 34. This is an OR circuit. These OR circuits 54+(i=1・
...N, the same applies hereafter) is output from the corresponding switch circuit 56
Connected to the ON input of 1. These switch circuits 5
6] is connected to the processor bus 34 which sends a normal signal (switch-off signal) when the corresponding component device is found to be normal in a program diagnosis as described below. Each switch circuit 56
1 is connected to the display power supply in series with the fault indicator 61.

Components 50.52.541 in the above configuration...
・54h+, 561 . . . 56) J is an example of the configuration of the display control means in FIG. Further, the main controller 24 and the diagnostic program executed therein correspond to the diagnostic means shown in FIG. Magnetic tape device 20. The main storage device 22 corresponds to the program storage means 4 in FIG.

In addition to this, the switch panel is provided with a diagnostic start key. This key is used to start diagnosis of each component device by a diagnosis program written in the main storage device 22, as will be described later.

Also, as in the past, a loading key and the like are provided on the exchange panel.

The diagnostic aspects of the system of the present invention configured as described above will be explained below.

In response to turning on the system power switch 50 (81 in FIG. 3), a high level signal is generated from the detection circuit 52, and is passed through the OR circuits 541...54N to the switch circuit 56.
1...Turn on all 56N and display fault indicator 6
1...6 Force N to display a fault display (S2 in Figure 3).

Thereafter, IPL is performed in the same manner as in the past by pressing the loading key on the exchange panel.

The program of the tapping magnetic tape device 20 (see Fig. 4),
A program (such as a diagnostic program) is written to main memory 22 via processor bus 34 (33 in FIG. 3).

Then, by pressing the diagnosis start key, the main control device 24 is diagnosed by the diagnosis program stored in the main storage device 22 (34 in FIG. 3).

If the normality of the main control device 24 is confirmed by the diagnosis (Y at 85 in FIG. 3), the fault indicator 61 which is a forced fault display in the previous layer corresponding to the device is displayed. (S6 in FIG. 3). On the other hand, if it is found that there is an abnormality in the main control device 24 (N at 85 in FIG. 3), the process proceeds to diagnosis of the sequential component devices without carrying out the display canceling process (37 in FIG. 3). 88N, S9 in Figure 3). The treatment for forced failure indications based on the results of diagnosis for each component device is exactly the same as described above.

When such diagnostic processing has reached all component devices, it ends (Y at 38 in FIG. 3).

In the above embodiment, a method is adopted in which the forced fault display that has already been displayed on the fault indicator is canceled when the diagnosis result shows normality, but when an abnormality appears in the diagnosis result, the fault display is canceled. It is also possible to adopt a method in which a display is displayed on the container. To do this, the OR circuit 54 in FIG. ...
54N, the abnormal signal (switch-on signal) thereto may be applied to the on-input of the switch circuits 561...56!1.

〔Effect of the invention〕

As described above, according to the present invention, each component device is diagnosed by a diagnostic program at the time of startup of a switching system, so a fault can be detected early and a faulty switching system can be continued as it is. It can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the principle of the present invention, Fig. 2 is a diagram showing the main part configuration of an embodiment of the present invention, Fig. 3 is a diagram showing the processing flow of the present invention, and Fig. 4 is a diagnosis of a conventional exchange system. It is a block diagram of a system. 1 and 2, 2, . . . 2N are each component device of the exchange, 4 is a program storage means (magnetic tape 20, main storage device 22), 61 . . . 6N is a fault indicator, and 10 is a fault indicator. Diagnostic means (main controller 24 and diagnostic program)
, 12 is display control means (power switch 50, detection circuit 52
, OR circuit 54. ...54N, switch circuit 561
...56N). Figure 1

Claims (2)

[Claims] (1) In a digital switching system equipped with a fault indicator (6_1...6_N) corresponding to each component device (2_1...2_N) and a program storage means (4) for storing a diagnostic program, etc. In response to startup, the diagnostic program is read out and the main control device (21
) to sequentially diagnose other component devices, and display control means (12) to display the diagnosis results of each component device by a diagnostic program on a corresponding fault indicator, A digital switchboard diagnosis method characterized by performing initial diagnosis of the switchboard. (2) The display control means (12) includes a forced failure display means, which forcibly displays a failure on all failure indicators (6_1...6_N) when the exchange system is started up. 2. The digital exchange diagnostic method according to claim 1, wherein the display is canceled based on the diagnosis result.