The construction and application of knowledge graph-based fault diagnostic system of CNC machine tool

Jiahai Wang; Wenming Yin; Jianxiang Gao

doi:10.1117/12.2679303

18 July 2023 The construction and application of knowledge graph-based fault diagnostic system of CNC machine tool

Jiahai Wang, Wenming Yin, Jianxiang Gao

Proceedings Volume 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023); 127223P (2023) https://doi.org/10.1117/12.2679303
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 2023, Hangzhou, China

Abstract

The ability to solve the complicated and interconnected systemic CNC machine tool faults of traditional machine tool fault diagnosis systems are limited. As a research hot-spot in the field of artificial intelligence, the knowledge map has the ability to standardize the non -structured data such as expert knowledge and use it for fault diagnosis, which can realize the explanation of the cause of fault. This article proposes a method to construct self-optimizing diagnostic system of CNC machine tool based on knowledge graph. First of all, expert knowledge was used to build the ontology of the knowledge map, and clarify the entity and relationship type in the knowledge map. Then, BiLSTM-CRF Model was used for named entity recognition from non-structured text. After that, Attention-based BiLSTM Model was used for relation detection and classification based on the previous result. Eventually, the extracted entity and relationship can build a knowledge graph for the diagnosis of CNC machine tool fault. Based on this as a premise, the diagnostic system of CNC machine tool is realized.

Citation Download Citation

Jiahai Wang, Wenming Yin, and Jianxiang Gao "The construction and application of knowledge graph-based fault diagnostic system of CNC machine tool", Proc. SPIE 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 127223P (18 July 2023); https://doi.org/10.1117/12.2679303

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KEYWORDS

Design and modelling

Diagnostics

Databases

Systems modeling

Statistical analysis

Visual process modeling

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