Construction and Application of Knowledge Graph for Train Maintenance Field
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 9
Abstract
Objective With its powerful semantic processing and open organization capabilities, the knowledge graph lays the foundation for knowledge-based organization and intelligent applications in various fields. In order to improve the digitization and intelligence level of urban rail transit train maintenance, a knowledge graph for the train maintenance field should be established. Method The knowledge graph technology is briefly introduced, and a top-down approach is adopted to construct the knowledge graph. The construction process of the knowledge graph for the train maintenance field is analyzed from five aspects, i.e. ontology design, information extraction, knowledge mapping, knowledge storage, and knowledge fusion. The outlook for the application of the knowledge graph in the field of train maintenance is described. Result & Conclusion Based on the above graph, not only can the problems of train maintenance data silos be effectively solved, but also the unified management of relevant data in the field of train maintenance can be realized, and intelligent services such as ′one file for one train′, intelligent retrieval, and train fault trend analysis be provided for train maintenance.
Authors and Affiliations
Junjie ZHANG, Shijun JIANG, Weidong LIU
Influence of Back-Support Shear Wall for Shield Launching on the Mechanical Characteristics of the Reaction Frame
Objective Due to the limited space available at the shield launching site, the restricted size of the reaction frame cannot provide sufficient shield launching reaction force on its own. Therefore, it is necessary to des...
Simplified Analytical Calculation for the Influence of Tunnel Excavation on Overlying Existing Pipelines
[Objective] When a shield tunnel passes under existing pipeline, it can cause settlement and deformation of the existing pipelines. Therefore, it is necessary to study the force and deformation of the overlying existing...
Quantitative Analysis and Allocation of Safety Integrity Level Indexes for Urban Rail Transit Vehicle System
Objective Development and application of FAO (fully automatic operation)system in urban rail transit train requires higher safety of urban rail vehicle system. Under the new operation scenario where FAO needs to be confi...
Influence of Urban Rail Transit Carbody Vertical Vibration on Pantograph-catenary Current Collection Performance
Objective Most existing studies on catenary system dynamics simulation are based on the assumption that the pantograph base has only longitudinal degrees of freedom, neglecting the influence of carbody vertical vibration...
Application of Distributed Photovoltaic Power Generation at Urban Rail Transit Station Entrances and Exits
Objective Based on the goals of carbon peak and carbon neutrality in China and the demand for green, low-carbon and sustainable development of urban rail transit, the feasibility of applying distributed photovoltaic powe...