Comprehensive repetitive defect searching method

Abstract

The invention provides a comprehensive repetitive defect searching method. Three main searching methods including a key-word searching method, a description searching method and a device position and fault type searching method are adopted, repetitive defects can be searched and distinguished comprehensively, the similarity of the repetitive defects searched with the three methods can be quantized in percentage, the comprehensive similarity can be acquired by combining the similarity obtained with the three searching methods in a certain proportion, and accordingly, the similarity of the repetitive defects can be evaluated objectively.

Description

technical field [0001] The present invention relates to the industrial field, and more specifically, relates to a method for comprehensively searching for repeated defects. Background technique [0002] In order to analyze and manage equipment defects in the industrial field, it is necessary to search and count the repeated defects of equipment. For example, if a defect with the fault characteristic type a occurred on equipment A, and a defect of the same type a occurs again, it is considered as a repeated defect. Or similar device B also has a type a defect, which can also be considered as a repeat defect. Therefore, the definition of repeated defects can be defined as "the same type of defects in the same type of equipment". Repetitive defect search is to screen out a large amount of equipment defect data, and screen out repeat defects of the same type of equipment with the same or similar fault characteristics. [0003] The existing methods for searching for repeated d...

AI Technical Summary

Problems solved by technology

[0005] 1. If relying on manual comparison one by one, first, it heavily relies on the subjective search experience and judgment of the searcher; second, when there are many defects, such as tens of thousands, the workload is too huge;

[0006] 2. Using the electronic form to search with keywords, generally only one keyword can be searched at the same time. Improper selection of keywords may result in finding a large number of invalid defects or no repeated defects at all

[0007] 3. When multiple repeated defects are found, the similarity cannot be quantitatively analyzed, and it can only be subjectively characterized as similar repeated defects, but there is no specific value for the specific similarity.

[0008] 4. When the defect occurs in the equipment at the same location, and the defect type is the same, but the defect description is different, if the repeatability is judged only by the defect description, it is likely to be missed

Images