JPS63257054A - Fault diagnosing system - Google Patents

Abstract

PURPOSE:To diagnose a block targeted to be diagnosed desired to investigate by a user preferentially and to improve the efficiency of diagnosis, by diagnosing the block targeted to be diagnosed inputted in the middle way of inference on the diagnosis of a fault preferentially to the present block targeted to be diagnosed. CONSTITUTION:An inference part 1 completes the inference on the present block SBP targeted to be diagnosed briefly when the block SB targeted to be diagnosed desired to invetigate by the user is inputted from an input part 2, and stores the present block targeted to be diagnosed in a diagnosis targeted block storage part 3. Next, the user sends the block SB targeted to be diagnosed desired to investigate by the user to a diagnosis targeted block changing part 4, and based on the above sending the diagnosis targeted block changing part 4 supplies the block SBN to be targeted at the next step after changing to the SB to the inference part 1. The inference part 1 diagnoses the block SB targeted to be diagnosed, and when the fault is generated in the block, the block targeted to be diagnosed of lower order is diagnosed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a fault diagnosis method, and more particularly to a fault diagnosis method capable of diagnosing a block to be diagnosed.

[Conventional technology]

In conventional fault diagnosis methods, a user responds to questions from a computer, and the computer finds the location of the fault based on the user's response data. For this reason, even if the user already has some idea of the location of the failure, the above steps for diagnosis cannot be changed.
There was a problem that the diagnosis took extra time and was inefficient.

〔the purpose〕

An object of the present invention is to provide a flexible fault diagnosis method that emphasizes user interaction and improves fault diagnosis efficiency.

〔composition〕

In order to achieve the above object, the present invention includes: an input means into which a predetermined block to be diagnosed is input; an inference means to sequentially detect a failure location from the predetermined block to be diagnosed based on the human power of the predetermined block to be diagnosed; The present invention is characterized by comprising a changing means for changing the inference target from the current diagnosis target block to the input diagnosis target block when the diagnosis target block is input from the input means during inference.

Hereinafter, a detailed explanation will be given based on one embodiment of the present invention.

FIG. 1 is a block diagram of the fault diagnosis method of the present invention, and FIG. 2 is a diagram showing the hierarchical structure of programs and tools to be diagnosed.

In FIG. 1, an input I from an input section 2, that is, a diagnosis target block SB that the user wants to examine, is added to the inference section 1, and the inference section 1 performs diagnosis. The inference unit 1 is connected to a diagnosis target block storage unit 3 and a diagnosis target block changing unit 4. The diagnosis target block storage unit 3 stores diagnosis target blocks A through fr layered structure as shown in FIG. Further, the diagnosis target block changing unit 4 determines the diagnosis target block to be diagnosed next based on the diagnosis result in the inference unit 1.

In the fault diagnosis method of this embodiment, when diagnosing blocks A to A to be diagnosed in a hierarchical i structure as shown in FIG. , if the block C to be diagnosed is not faulty, the process proceeds to the block F to be diagnosed without checking the blocks D and E to be diagnosed.

In the fault diagnosis method of this embodiment, the user's opinion can be further taken into consideration, and the block to be diagnosed that the user wants to investigate can be investigated. For example, in FIG. 2, when the user has an idea that the block F to be diagnosed may be faulty, the user can check the block F to be diagnosed next after the block A to be diagnosed, and If a block is actually faulty, the time required to investigate the target blocks B and C can be reduced, and the diagnosis time can be shortened.

Further, in FIG. 1, when the diagnosis target block SB that the user wants to investigate is input from the human power section 2, the inference section 1 performs the following operations.
Finish the inference of the current block SBP to be diagnosed,
The current block to be diagnosed SBP is stored in the block to be diagnosed storage unit 3. After that, the diagnosis target block changing unit 4
The user sends the block to be diagnosed SB that the user wants to examine, thereby -3= The block to be diagnosed block change unit 4 converts the block to be diagnosed next to be examined S B N to SH and provides it to the inference unit 1 .

The inference unit 1 diagnoses the block SH to be diagnosed,
If there is a failure, check the lower-level blocks to be diagnosed. If there is no failure, the diagnosis target block S B stored earlier from the diagnosis target block storage unit 3
After extracting p, the block to be diagnosed S B N to be examined next is determined, and the inference is continued.

〔effect〕

As explained in 4-, according to the present invention, when a diagnosis target block is input from the input means during inference,
Since the target of inference is changed from the current diagnosis target block to the input diagnosis target block, it becomes possible to diagnose the diagnosis target block that the user wants to investigate first, improving fault diagnosis efficiency. A failed machine can be quickly restored.

= 4 -

[Brief explanation of drawings]

FIG. 1 is a block diagram of the fault diagnosis method of the present invention, and FIG. 2 is a diagram showing blocks to be diagnosed in a hierarchical structure.

Claims (1)

[Claims] an input means into which a predetermined block to be diagnosed is input; an inference means to sequentially detect failure locations from the block to be diagnosed based on the input of the predetermined block to be diagnosed; 1. A fault diagnosis method comprising: a change means for changing an inference target from a current diagnosis target block to an input diagnosis target block when an input is input.