JPH02146638A - Device diagnostic system - Google Patents

Abstract

PURPOSE:To improve the device diagnostic efficiency by storing the information relating to the interruption into an interruption information store means when a diagnostic processing is interrupted by a processing means and restarting the diagnostic processing based on the stored interruption information. CONSTITUTION:A processing means 111 diagnoses a device in a time division way. A load state measurement means 121 measures the using rate of the means 111 and outputs an interruption instruction via an interruption instructing means 131 according to the measuring result of the means 121. The information on the interruption is stored in an interruption information storing means 151. While a restart instruction means 141 outputs a restart instruction in response to the measuring result of the means 121. The means 111 reads the information on the interruption of the diagnostic processing out of the means 151 and restarts the device diagnostic processing. Thus the device diagnostic efficiency is improved.

Description

[Detailed Description of the Invention] [Summary] In an electronic switching system that performs time-sharing processing, the present invention relates to a device diagnosis method that diagnoses each component part using a task with a low priority, and aims to improve the efficiency of device diagnosis. processing means for diagnosing the device on a time-sharing basis; load state measuring means for measuring the usage rate of the processing means;
Interruption instructing means for instructing the processing means to interrupt the diagnostic processing according to the measurement result by the load state measuring means; and interrupt instruction means for instructing the processing means to interrupt the diagnostic processing according to the measurement result by the load state measuring means, and diagnosis by canceling the interruption of the diagnostic processing by the processing means according to the measurement result by the load state measuring means. restart instructing means for instructing restart of processing, and interruption information storage means for storing information regarding the interruption when the diagnostic processing of the processing means is interrupted, and supplying information regarding the interruption to the processing means when restarting the processing of the processing means. The system is configured to include the following.

[Industrial application field]

The present invention relates to an equipment diagnosis method for diagnosing each component of an electronic switching system or the like that performs time-sharing processing using tasks with low priority.

[Conventional technology]

In general, software control systems for electronic switching systems control multiple tasks by assigning priorities (levels) to various tasks (units of work from the perspective of a processing device).

This level is a periodic clock level and
It can be broadly divided into the base level, which performs other normal work. For example, at the clock level, processing is performed to monitor whether there is an infinite loop in which one task at the base level monopolizes processing for a long time, and at the base level, processing is performed to perform switching connection processing and equipment diagnosis of each component. Processing etc. are being carried out.

Generally, this device diagnostic processing takes a long time and is started regardless of the load condition of the central processing section of the electronic switching system, so depending on the load condition, there is a risk that the reliability of the system may be reduced.

Therefore, if the device diagnostic process is not completed within a certain period of time when the central processing unit is overloaded, the device diagnostic process is abandoned.

[Inventiveness: Problems to be solved]

By the way, in the above-mentioned conventional method, when the overload state of the central processing unit is released, the device diagnosis process is restarted, which wastes the previous diagnosis results and reduces the efficiency of device diagnosis. There was a problem.

In practice, in order to reduce such waste, a method is adopted in which the diagnostic target is divided into a plurality of blocks and diagnostic processing is performed to minimize waste caused by abandonment of processing. However, if overload conditions occur frequently, this waste cannot be ignored, so there has been a desire for a device diagnosis method that can eliminate this waste and increase the efficiency of device diagnosis.

The present invention was created in view of these points, and an object of the present invention is to provide a device diagnosis method that increases the efficiency of device diagnosis.

[Means to solve the problem]

FIG. 1 is a block diagram of the principle of the device diagnosis method of the present invention.

In the figure, processing means 111 diagnoses the device in a time-sharing manner.

The load state measuring means 121 measures the usage rate of the processing means 111.

The suspension instructing means 131 instructs the processing means 111 to suspend the diagnostic processing according to the measurement result by the load state measuring means 121.

The restart instructing means 141 cancels the interruption of the diagnostic processing by the processing means 111 and instructs the restarting of the diagnostic processing according to the measurement result by the load state measuring means 121.

The interruption information storage means 151 stores information regarding the interruption when the diagnostic processing of the processing means 111 is interrupted, and supplies information regarding this interruption to the processing means 111 when the processing means 111 restarts the processing.

Therefore, as a whole, when interrupting the diagnostic processing by the processing means 111, information regarding the interruption is stored in the interruption information storage means 1.
51, and the diagnostic processing is restarted based on this information.

[For production]

The processing means III performs diagnostic processing of the apparatus in a time-sharing manner.

The load state measuring means 121 measures the usage rate of the processing means 111, and according to the measurement result (for example, when the usage rate reaches a predetermined value), the interruption instruction means 131 outputs an interruption instruction. The processing means 111 interrupts the diagnostic processing in response to this interruption instruction, and stores information regarding this interruption in the interruption information storage means 151.

Further, depending on the measurement result of the load state measuring means 121 (for example, if the usage rate drops to a predetermined value again after interrupting the processing of the processing means 111 due to a decrease in the usage rate), the restart instructing means 141 A restart instruction is output from. Processing means 1
11, in response to this restart instruction, the interruption information storage means 15
The information regarding the interruption of the diagnostic processing stored in 1 is read out and the diagnostic processing of the device is restarted.

In the present invention, when interrupting the diagnostic processing by the processing means 111, information regarding the interruption is stored in the interruption information storage means 15.
1 and the diagnostic process is restarted based on this information.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 2 shows the configuration of an electronic switching system in an embodiment to which the device diagnosis method of the present invention is applied.

Processing means 111. Load state measuring means 121. Interruption instruction means 131. Each of the restart instruction means 141 corresponds to a central processing unit (CC) 4 i i and a main memory (MM) 4 ] 3 .

The interruption information storage means 151 includes a file memory (FM) 4
It corresponds to 21.

"-"1 Shigan IJN Precepts In FIG. 2, the electronic switching system J of the embodiment includes a main control unit 200 that controls the entire electronic switching system, and a plurality of call processing units 400 to 400 that perform call connection processing. 900
It is equipped with

The call processing unit 400 includes a central processing unit (CC) 411 that controls the entire call processing unit 400 to perform call connection processing.
, a main memory (MM) 413 that stores execution programs and data of the central processing unit (CC) 41.1, and exchanges data and instructions between the central processing unit (CC) 4]-1 and each component. Channel control unit (CHC) 415 for
A common line signaling device (which controls the exchange of signals between a file memory (FM) 42 with a non-volatile recording medium (e.g. magnetic disk) and other exchange systems)
C3E) 461 and a channel adapter (CCA) 471 for exchanging data with the main control unit 200.

Channel control unit (CHC) 415. File memory (
FM)421. A common line signaling device (C3E) 461 and a channel adapter (CCA) 471 are connected in a helical manner.

The call processing unit 400 also includes a plurality of path units (N
W) 431-439, line circuits (LC) 441-449 for connection with subscriber lines, and trunks (TRK)/I 51-459 for processing call signals and the like.

Passageway sections (NW) 431 to 439 are central processing sections (CC)
It is connected to 411 by a lotus. In addition, line circuit (LC)
) 441 to 449 each correspond to a corresponding passageway section (NW
) 431 to 439, and each of the trunks (TRK) 45] to 459 is connected to each of the corresponding passageways (NW) 431 to 439.

Note that the configuration of each call processing section up to call processing section 900 is the same as that of call processing section 400, and detailed explanation will be omitted.

U1 case! April Y Next, the operation of the embodiment of the present invention described above will be explained.

FIG. 3 shows a processing procedure for device diagnosis according to the embodiment.

(A) shows the procedure during device diagnosis processing, and (B) shows the procedure when this device diagnosis processing is interrupted.

It is assumed that the device diagnostic processing is executed as a task at the lowest priority level (BIQ3 level) among the health levels.

Reference will now be made to FIGS. 2 and 3.

The central processing unit (CC) 411 has a main memory (MM) 4
13 is executed to diagnose the device (step 311).

Next, the central processing unit (CC) 41]
CC) 411 itself is determined whether its usage rate is equal to or higher than a predetermined value (step 312). If the ratio of the processing execution time to the total time is less than or equal to a predetermined value, a negative determination is made and it is determined whether or not the device diagnosis has been completed (step 3).
17). When the determination is affirmative, the diagnostic process is ended. Also,
If the determination is negative, the process returns to step 311 (diagnosis implementation) and repeats the process.

If the determination in step 312 is affirmative (central processing unit (
(If the usage rate of CC) 411 is below a predetermined value and it is in an overload state), then the central processing unit (CC) 411 performs a standby process for information regarding interruption of diagnostic processing (step 313), and then Interrupting device diagnostic processing (step 31
4).

As information regarding this interruption, for example, (1) diagnosis results up to the present, (2) current diagnosis status (which device is being diagnosed and how), etc. are required. Central processing unit (CC) 41
1 sends this information to the channel control unit (CHC) 415
The data is stored in the file memory (FM) 421 via the FM.

When the diagnostic process is interrupted in step 314, the device's diagnostic process is suspended until an instruction to restart the process (described later) is given, and the central processing unit (CC) 411 then adjusts the priorities of call connection processes, etc. It becomes possible to execute high-level processing intensively.

Furthermore, in response to the interruption of the diagnostic processing in step 314,
The usage rate determination process shown in FIG. 3(b) is started.

The central processing unit (CC) 411
It is determined whether the usage rate of 2 itself is less than or equal to a predetermined value (step 351). If the usage rate is greater than or equal to the predetermined value, a negative determination is made and the determination process of step 351 is repeated.

Further, when the usage rate of the central processing unit (CC) 411 becomes less than a predetermined value, an affirmative determination is made in step 351, an instruction to restart the device diagnosis processing is executed (step 352), and the processing is ended.

When the process in step 352 (resume instruction) is executed, the central processing unit (CC) 4.11 cancels the interruption operation of the diagnostic process in step 314, and uses the information stored in the file memory (FM) 421 in step 313. is read out (step 315).

Next, the central processing unit (CC) 411 stores the file memory (
The device diagnostic process is restarted based on the information read from FM) 421 (step 316).

After that, the determination in step 317 (has the diagnostic process been completed?)
Repeat the following process.

The central processing unit (CC) 41
Since the device diagnosis processing can be restarted and continued when the load on the device becomes light, it is possible to improve the processing efficiency of device diagnosis.

In this way, when the usage rate of the central processing unit (CC) 411 exceeds a predetermined value, the central processing unit (CC) 411 resumes the device diagnosis processing that has been performed up until now. Interrupt. At this time,
Information such as the diagnosis results up to now and the current diagnosis status is stored in a file memory (FM) 421.

In addition, after interrupting this diagnostic processing, the central processing unit (CC) 411
When the usage rate of the device becomes less than a predetermined value, the device diagnostic process is restarted. When restarting this process, the information stored in the file memory (FM) 421 at the time of interruption of the process is read out, and the process being performed at the time of interruption is continued.

Therefore, when the central processing unit (CC) 411 becomes overloaded, the central processing unit (CC) 411 performs When interrupting the device diagnosis processing of the (CC) 411, information regarding the interruption is stored in the file memory (FM) 421, but it may also be stored in the main memory (MM) 413.

Further, in the embodiment, a device diagnosis process in an electronic switching system has been described, but the present invention can be applied to any processing system that performs device diagnosis by a task with a low priority.

Furthermore, in ``Correspondence between Examples and Figure 1'',
Although the correspondence between the present invention and the embodiments has been described, those skilled in the art will easily assume that the present invention is not limited to this and that there are various modifications.

[Effects of the Invention] As described above, according to the present invention, when the diagnostic processing by the processing means is interrupted, information regarding the interruption is stored in the interruption information storage means, and the diagnostic processing is restarted based on this information. This is extremely useful in practical terms because it can improve the efficiency of device diagnosis.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a basic diagram of the device diagnosis method of the present invention, Fig. 2 is a block diagram of an embodiment to which the device diagnosis method of the present invention is applied, and Fig. 3 is an embodiment. FIG. In the figure, 111 is a processing means, 121 is a load state measuring means, 131 is an interruption instruction means, 141 is a restart instruction means, 151 is an interruption information storage means, 0 is a main control section, 0.900 is a call processing section, 1 is a Central processing unit (CC), 3 is main memory (MM), 5 is channel control unit (CHC), I is file memory (FM), ], 439 is passageway unit (NW), 1.449 is line circuit (1-C), 1.459 is the trunk (TRK), (2) is the common line signaling device (C3E), and 1 is the channel adapter (CCA).

Claims (1)

[Claims] (1) Processing means (111
), a load state measuring means (121) for measuring the usage rate of the processing means (111), and interruption of diagnostic processing by the processing means (111) according to a measurement result by the load state measuring means (121). The processing means (
a restart instructing means (141) for canceling the interruption of the diagnostic processing by the processing means (111) and instructing the restart of the diagnostic processing; (111) When restarting the processing, information regarding this interruption is transmitted to the processing means (
111); and an interruption information storage means (151) for supplying the information to the apparatus.