JPS6311700B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a remote diagnostic method.

In the conventional remote diagnosis method, a maintenance center performs a failure diagnosis of only the target system through a communication line, and maintenance operations are performed based on the results. Therefore, it is difficult to quickly pinpoint the exact location of the failure, and MTTR
The disadvantage was that it was not possible to shorten the mean time to repair.

The purpose of the present invention is to simultaneously perform fault diagnosis on other computer systems that are operating normally, whereas conventional failure diagnosis was performed only on target systems located in remote locations, and to compare the diagnosis results of both systems. The purpose of this invention is to provide a remote diagnosis method that aims to shorten the MTTR of the target system by accurately pointing out the location of the failure.

The present invention provides first and second communication control means connected to first and second computer systems each performing the same operation via a communication line, and a communication control means connected to each of the computer systems via these communication control means. A diagnosis supply means for supplying a predetermined fault diagnosis program, a comparison means for sequentially comparing data outputted from each of the computer systems in response to a signal from the diagnosis supply means, and a comparison means for comparing the output of the comparison means at least in the The remote diagnosis method includes data output means for transmitting data to the computer system that has failed through the communication control means.

Next, the present invention will be explained in detail with reference to the drawings.

In FIG. 1 showing a remote diagnosis method according to an embodiment of the present invention, the remote diagnosis method includes a computer 10, a file 11, a console 12, communication control units 20 and 21, and a communication line 3 in a maintenance center.
0, 31, a computer system 40 that happens to be out of order, a normally operating computer system 41, and a fault dictionary 13. Now, at the computer 10 in the maintenance center, the operation console 12
, the diagnostic program is controlled for the failed computer system 40 connected via the communication circuit 30 and the communication control unit 20, and the machine clock,
Alternatively, diagnostic results, such as register data, are collected at certain regular intervals and stored in the file 11.

At the same time, a similar diagnostic program is controlled for another normally operating computer system 41 connected via the communication line 31 and the communication control section 21, and collected data is stored in the file 11. These two pieces of collected data are compared, and based on the discrepancy data and the fault dictionary 13, the exact fault location of the faulty computer system 40 is determined. The determined failure location is transferred to the failed computer system 40 via the communication control unit 20 and communication line 30 based on instructions from the computer 10 of the maintenance center.

It is assumed that the failed computer system 40 and the normally operating computer system 41 are the same model, but it is clear that this diagnostic method can be applied to any computer system that operates in the same way even if they are not the same model.

According to the present invention, as described above, it is possible to quickly and accurately point out the fault location of a faulty system, and the MTTR of the faulty system can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating a remote diagnosis method according to an embodiment of the present invention. In the figure, 10... Computer at the maintenance center, 11...
File, 12...Operation console, 13...Fault dictionary,
20, 21... Communication control unit, 30, 31... Communication line, 40... Broken computer system,
41... Computer system that operates normally.

Claims (1)

[Claims] 1. First and second communication control means respectively connected to first and second computer systems that perform the same operation via communication lines, and predetermined fault diagnosis to each of the computer systems via these communication control means. A diagnosis supply means for supplying the respective programs; a comparison means for sequentially comparing data outputted from each of the computer systems in response to a signal from the diagnosis supply means;
and data output means for transmitting the output of the comparison means to at least one of the computer systems that has failed through the communication control means.