JPS6234247A - Production system for point-out table of fault hardware - Google Patents

Abstract

PURPOSE:To attain the accurate and quick retrieval of each fault hardware by utilizing the connection relation of signals and the trouble factors of using parts to each of plural hardware units registered in a file storage means. CONSTITUTION:The selection signal and the check timing of each selector are set to an F/F in the form of the auxiliary information in case a fault detecting means is applied through a selector and in case an AND is secured with plural check timings and these OR outputs are set to a fault display F/F after OR operations. Then the hardware which causes a factor to set the auxiliary information are sorted and registered to a fault hardware point-out table for each hardware unit having a high trouble factor after registration on a file storage table 1 together with reference to the fault display F/F.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for generating a faulty hardware pointing table, and in particular, when a hardware fault occurs, the faulty hardware is indexed by a fault display flip-flop for displaying the faulty hardware. This invention relates to a method for generating a failure hardware indication table for use in a computer.

Conventional technology Conventionally, when a failure occurs in hardware such as a computer,
There is a system that points out the faulty hardware by indexing a faulty hardware pointing table prepared in advance. In this system, hardware such as a computer is divided into packages as units of replacement, and a set of flip-flops (F/F ), and furthermore, in each of these F/Fs, the failure indicated by the F/F is predicted to occur.
A faulty hardware indication table is provided in advance to hold the set of packages in order of probability of fault occurrence. Then, when a failure occurs, the table is indexed based on the set failure display F/F, and the 1 ml package corresponding to this F/F is searched from the person who may be experiencing the failure. The rankings are ranked and a visible display output such as a printout is made.

FIG. 5 is a block diagram of such a failure hardware pointing system, and 101 is the above-mentioned replacement! ■ A hardware unit as a package that is number i A.

B, C, . . . are shown. Reference numeral 102 denotes circuit components constituting each hardware unit, including components aO, a1 . ....

an, am, etc. indicate the constituent elements of the hardware unit A,
Parts bO to bn represent the components of the hardware unit B, and parts 01 to cn represent the components of the hardware unit C.

Reference numeral 103 denotes a failure detection means, and a failure detection means is installed corresponding to each hardware unit or a plurality of intermediate hardware units as one set. Reference numeral 104 denotes an OR means, which generates a logical OR of the detection outputs of a plurality of fault detection means! A fault display F/F 105 is provided which is set by the output of each fault detection means and OR means.

On the other hand, J5 fault hardware indication tables 201 are provided in advance, and as described above, corresponding to the fault display F/F, the hardware units of the set corresponding to this F/F have a high possibility of fault occurrence. They are stored in advance in order.

Then, the table 201 is indexed using the set F/F (fault has occurred in the corresponding hardware unit) among the failure display F/Fs 105 as a key, and the hardware set corresponding to this F/F is found. Possibility display is output from the output unit 202 in descending order of probability of failure occurrence.

An example of this fault hardware indication table 201 is shown in FIG. 6, where i and j are the identification numbers of the fault display F/F,
A, B, C, X, and Y are identification names of hardware units, and the numbers on the right side indicate the possibility of failure occurrence and indicate the ranking.

In the conventional system, for the cause of setting the failure display F/F, that is, the failure detected by the failure detection means, a human being traces the circuit diagram and extracts a package as an intermediate replacement. The failure rate of circuits constituting a path, which can be a cause of failure if there are a plurality of them, is calculated for each package, and the packages as replacement units are ranked according to their size, thereby creating a failure hardware indication table 201.

In this way, in conventional systems, faulty hardware indication tables are created entirely manually, so in large-scale combicoater systems, etc., it is easy to miss indications or make erroneous indications, and it takes a significant amount of time to create them. There is a drawback that it requires

OBJECTS OF THE INVENTION An object of the present invention is to provide a generation method for a faulty hardware indication table that allows a faulty hardware unit corresponding to a fault display F/F to be searched for more accurately and more quickly than in the past. That's true.

Structure of the Invention The fault hardware indication table generation method according to the present invention includes a method for generating a fault hardware indication table corresponding to each fault display storage element that stores the occurrence or non-occurrence of each fault detected by a plurality of fault detection means.
A failure hardware indication table generation method that generates a table storing hardware units in order of probability of failure occurrence, the method comprising: each of the parts constituting the hardware unit corresponding to each of the failure indication storage elements; storage means for storing in advance failure rates and connection relationships, connection relationships between these parts, and connection relationships between these hardware units; Extract the hardware middle corresponding to the storage element,
Calculating means for calculating the failure rate of the parts constituting this hardware unit for each hardware unit based on the data in the storage means described in 11h is provided, and the failure rates are compared with each other to determine whether the failure rate is large or small. The present invention is characterized in that the hardware units ranked according to their size are stored in association with the fault indication storage element to generate a fault hardware indication table.

Example Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 is a functional block diagram of an embodiment of the present invention, in which there is a circuit state storage table 1 that stores in advance the circuit state of each phase of hardware corresponding to each failure display F/F, and the information in this table 1. A deriving means 2 calculates a failure rate for each hardware unit corresponding to each failure display F/F based on the above, a comparison means 3 compares the calculated failure rate in magnitude, and a comparison means 3 calculates the failure rate in accordance with the comparison result. and a table generation means 4 for generating a failure hardware indication table in which hardware units are arranged and recorded for each F/F correspondence in the order in which they occur.

FIG. 2 shows a specific example of hardware for explaining the operation of the embodiment shown in FIG. 1, in which packages A to C are the hardware units 101 shown in FIG.
indicates the circuit component elements constituting each package, and 305
However, if three packages A to C are colored one navy blue, this navy blue failure display will be the corresponding F/F. Here, package B
The AND gate b1 operates as a fault detection means.

When the AND condition of the signal line alo and the signal line C10 is satisfied by the AND gate b1, the fault display F/F 305 is set. Here, a fault that occurs in a logic circuit is notified to a human by the fault display F/F, but in recent electronic computers, when the fault display F/F is set, the fault display F/F
Pick up the logic that may set the fault F/F in replacement units such as packages or cards, sort the replacement units in descending order of the possibility of failure occurrence, and set these replacement units (-hardware units) to the fault F/ The correspondence with F is registered in advance as a table (fault hardware indication table) in the attached computer, and in the fault display F/F,
The fault hardware indication table is indexed and the fault prediction hardware units are output to the fault prediction priorities.

However, as mentioned above, since the failure hardware indication table is created manually from the logic circuit diagram, it has the drawbacks that incorrect indications may occur and that creation requires a large amount of man-hours.

Therefore, the present invention provides means for solving all of these problems, and will be described in detail below.

During the design process of the logic circuit shown in Figure 2, connections between gates, connections between packages, circuit functions of each gate, and failure rate of each gate are organically determined as shown in file storage table 1 in Figure 3. They are stored on magnetic tape or magnetic disks in such a way that they can be combined with each other. Therefore, by taking predetermined steps in the program, it is possible to create a fault indication table 201 as shown in FIG. 6 relatively easily.

To explain Table 1 in FIG. 3, F/F305
If the circuit element identification name in (Fig. 2) is Ei, then this E
For i, (circuit function F/F, failure rate λe, package name PKG B to which it belongs) is stored. The blo following Ei indicates a connector, and for this blo (
Connecting interconnect element bl-EO.

The package name PKG B) to which it belongs is stored. Below, gate b1. Connector a 10. c10 etc. are also stored sequentially.

FIG. 4 shows the procedure for creating the fault indication table.

For each fault display F/F included in the device, set conditions for the fault display F/F as shown in FIG. 4, and records of Ei registered in the file storage table 1 of FIG. Read out and calculate the failure rate for each package in the exclusion means 2 from the path information configuring the Ei record,
The calculation results are compared by the comparing means 3, and the packages are ranked according to their size, and a fault indication table 201 shown in FIG. 6 is created.
This is what we get.

Here, the hardware that causes F/F Ei to be set includes all hardware that exists in the section starting from Ei itself and ending at the hardware checked by the fault detection means (bl in Figure 2). It is common to use doware.

Furthermore, to improve the accuracy of fault pointing hardware units, e.g. after passing through a selector.

When a fault detection means is included, or when multiple check timings are ANDed and the AND outputs are ORed to set a fault display F/F, the selector selection signal and check timing are used as auxiliary information. The auxiliary information display F/F is also recorded in the file storage table 1 in Fig. 3, and the fault hardware shown in Fig. 6 is set. The present invention also includes recording in the indication table the hardware that is the cause of setting the auxiliary information in units of hardware with a high failure rate.

DETAILED DESCRIPTION OF THE INVENTION As described in detail, the present invention provides information on connection relationships of signals,
By using the failure rate of the parts used, failure indication F/
This has the advantage that the faulty hardware unit corresponding to F can be searched for more accurately and quickly to create a faulty hardware indication table.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram showing an example of hardware targeted for the embodiment of the present invention,
3 is a diagram showing the contents of the state storage table of the circuit in FIG. 2, FIG. 4 is a flowchart showing the operation of the embodiment of the present invention, and FIG. 5 is a diagram showing the faulty hardware to which the embodiment of the present invention is applied. FIG. 6, a block diagram of the hardware indication system, is a diagram showing an example of a faulty hardware indication table. Explanation of symbols of main parts 1...Circuit state storage table 2...Failure rate calculation means 3...Comparison means 4...Fault hardware indication table generation Means 101...Package 105...Fault display F/F 201...Fault hardware indication table 1st
Figure 2 Figure 3 Figure 6 Figure 4 Figure 5

Claims (1)

[Claims] A table is generated in which hardware units are stored in order of probability of failure, corresponding to each failure display storage element that stores the presence or absence of each failure detected by the plurality of failure detection means. A failure hardware indication table generation method, which includes failure rates and connection relationships for each of the components constituting the hardware unit corresponding to each of the failure indication storage elements, connection relationships between these components, and furthermore, a storage means for storing in advance connection relationships between hardware units; and a storage means for storing connection relationships between hardware units; and calculation means for calculating the failure rate of the parts constituting the unit based on the data in the storage means, the failure rates are compared with each other to determine the magnitude, and a ranking is assigned according to the magnitude. A failure hardware indication table generation method, characterized in that a failure hardware indication table is generated by storing hardware units corresponding to the failure indication storage elements.