JPH0385850A - Fault detection/control system - Google Patents

Abstract

PURPOSE:To locate a fault location even when a fault cannot be detected by a diagnostic program by allowing the diagnostic program to apply fault diagnostic operation and to inform a data of retrieval result when the fault cannot be detected. CONSTITUTION:A fault retrieval program 1 is normally operated and a data of retrieval result is informed to a fault notice program 2 and stored in a fault information storage area 3. when the fault notice program 2 detects a fault from the data being the result of retrieval by the fault retrieval program 1, the data of retrieval result is analyzed and arranged as a notice data to output a start request of a diagnostic program 4. The diagnostic program 4 receives a diagnostic program start request from the fault notice program 2, applies fault diagnostic operation and when a fault is found out, the data of the fault diagnostic result is noticed and when no fault is found out, the fault retrieval program 1 informs the data of retrieval result stored in a fault information storage area 3. Thus, even when a fault is not detected by the diagnostic program 4, the fault location is located.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fault detection control method, and more particularly to a fault detection control method that searches for faults that occur only during operation.

[Conventional technology]

In the conventional fault detection control method, the diagnostic program, upon receiving a request to start the diagnostic program from the fault reporting program, disconnects one system of the redundant device, which is assumed to have a fault, from the operating system and puts it into standby mode. It performed fault diagnosis operations and searched for the location of the fault.

[Problem to be solved by the invention]

In the conventional fault detection control method described above, fault diagnosis is performed after placing a device that is assumed to have a fault into a standby state, so this fault only occurs when the device in question is in operation. , there is a problem that it cannot be detected.

An object of the present invention is to organize search result data searched by a fault search program and stored in a fault information storage area by a fault reporting program as reporting data, and passing it on to a diagnostic program as reporting data, so that the diagnostic program performs fault diagnosing operations. It is an object of the present invention to provide a fault detection control method which can determine the location of a fault even when a diagnostic program cannot detect the fault by reporting search result data when the fault cannot be detected.

[Means to solve the problem]

The fault detection control method of the present invention is a fault detection control method in an electronic switching system having a duplex redundant configuration.
A fault search program that searches for faults and stores the search result data in a fault information storage area, and when the fault search program detects a fault from the search result data, analyzes the search result data and organizes it as notification data. A fault reporting program that outputs a diagnostic program startup request; and a fault reporting program that receives a diagnostic program startup request from the fault reporting program, performs a fault diagnosis operation, and if a fault is found, reports the fault diagnosis result data; if no fault is found, the fault is The search program includes a diagnostic program that reports the search result data stored in the failure information storage area.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a program layout diagram of an embodiment of the present invention.

Normally, the fault search program 1 operates, and notifies the fault reporting program 2 of search result data and stores it in the fault information storage area 3. When the failure notification program 2 detects a failure from the search result data of the failure search program, it analyzes the search result data, organizes it as notification data, and outputs a diagnostic program startup request. The diagnostic program 4 performs a fault diagnosis operation in response to a request to start the diagnostic program from the fault reporting program 2. If a fault is discovered, it reports data on the fault diagnosis results, and if no fault is found, the fault search program 1 sends fault information. The search result data stored in the storage area 3 is reported.

FIG. 2 is a flow diagram of one embodiment of the present invention.

The fault search program includes step (hereinafter referred to as S) 11.
Execute fault search in S1. , 2, the search result data is stored in the failure information storage area. Next, the failure reporting program determines the search result data of the failure search program in step 313, and if it determines that a failure has occurred, the failure reporting program analyzes the search result data in step S14 and organizes it as notification data.
At step 15, a diagnostic program startup request process is performed. When the diagnostic program receives the diagnostic program activation request from the failure notification program 2, it executes the failure diagnosis operation in 316, and then proceeds to S1.
If a fault is found in step 7, the fault diagnosis result data is reported in step 51-8, and if no fault is found, the fault search program reports the search result data stored in the fault information storage area in steps 31 and 9. .

FIG. 3 is a storage pattern diagram of the fault information storage area of the present invention.

Information within one word indexed by processor number includes the system 9 number of the communication path control device (hereinafter referred to as spc) and this 8
The location of the fault read from the PC is displayed in the 0 system (hereinafter referred to as HOME) and the other system (hereinafter referred to as MATE), and the previous information (hereinafter referred to as LAST LOO
Fault search data is collected as (denoted as K).

FIG. 4 is a diagram showing a communication path signal maintenance and monitoring device test data storage pattern.

A failure is recognized when the test data of this channel signal maintenance and monitoring device reaches an unacceptable value. or,
Conventionally, the test data of this channel signal maintenance and monitoring device was reported by the hardware to the software, but as shown in the figure, the software itself uses the 3 to 5 bits on the second line to report failures. ing. Further, the test data in this case is on the 7th line, and can be freely rewritten and tested by the software.

FIG. 5 is a block diagram showing a redundant configuration between the communication path control device and other devices.

The redundant configuration of the spc involves many intertwining between devices, and various types of operation can be considered.

FIG. 6 is a pattern diagram of the operation type of the communication path control device shown in FIG.

When a fault is recognized and the diagnostic program executes the fault diagnosis operation, there are eight patterns considering all the combinations of operation modes of the channel control equipment. Because the equipment must not be affected, it is not possible to test the potentially faulty equipment in all types of operation. For this reason, there may be cases where the fault cannot be found, but in this case, the present invention determines the driving style and fault location from the storage pattern information of the fault information storage area shown in FIG. 3, which is collected by the fault search program. Report to maintenance personnel.

〔Effect of the invention〕

As explained above, in the present invention, the fault diagnosis operation is performed after placing the device determined to be faulty in the standby state, so this fault only occurs when the device in question is in operation. There is a problem that it cannot be detected if it is a physical object.

An object of the present invention is to organize search result data searched by a fault search program and stored in a fault information storage area by a fault reporting program as reporting data, and passing it on to a diagnostic program as reporting data, so that the diagnostic program performs fault diagnosing operations. By notifying the data of the search results when the fault cannot be detected, it is possible to determine the location of the fault even when the fault cannot be detected by the diagnostic program.

[Brief explanation of drawings]

Fig. 1 is a program layout diagram of an embodiment of the present invention, Fig. 2 is a flowchart of Fig. 1, Fig. 3 is a storage pattern diagram of the fault information storage area of the present invention, and Fig. 4 is a channel signal maintenance monitoring. FIG. 5 is a block diagram showing a redundant configuration of the communication path control device and other devices; FIG. 6 is a pattern diagram of the operation format of the communication path control device shown in FIG. 5. 1... Fault search program, 2... Fault reporting program, 3... Fault information storage area,
4...Diagnosis program.

Claims (1)

[Claims] In a fault detection control method in an electronic switching system having a duplex redundant configuration, a fault search program that searches for a fault and stores search result data in a fault information storage area;
When the fault search program detects a fault from the search result data, a fault report program that analyzes the search result data, organizes it as report data, and outputs a diagnostic program startup request; and a diagnostic program startup from the fault report program. Upon receiving a request, a fault diagnosis operation is performed, and if a fault is found, the fault diagnosis result data is reported, and if a fault cannot be found, the fault search program reports the search result data stored in the fault information storage area. A fault detection control method comprising a diagnostic program.