Research And Implementation Of Knowledge Base For Railway Signal Interlocking Design

The railway signal interlocking system is a comprehensive system used to control and supervise the switch,approach and signal equipment in the station,and realize the interlocking relationship between the various equipment.The railway signal interlocking system not only guarantees the safety of train operation and shunting operations inside the station,but also improves the efficiency of train operation and reduces the labor intensity of the staff which plays an important role in the railway system.The current design process of railway signal interlocking system has the characteristics of highly knowledge-intensive,distributed and heterogeneous.Some previous design experience has not been effectively managed,resulting in the inability of relevant staff to efficiently acquire and utilize these valuable domain knowledge in the process of designing station interlocking system and reviewing station interlocking engineering data.Therefore,how to construct a knowledge base platform for effective management,sharing and inheritance of railway signal interlocking design knowledge is of great significance for improving the construction efficiency of railway signal interlocking system.Based on the actual needs of domestic railway companies,this thesis studies knowledge representation,knowledge management,knowledge retrieval and knowledge utilization in the field of railway signal interlocking design,and designs and develops a railway signal interlocking design knowledge base.The main content of this thesis includes:1.On the basis of analyzing the current situation of knowledge management of railway signal interlocking design,this thesis investigates the current status of domestic and foreign research in knowledge engineering,knowledge storage,knowledge retrieval,and knowledge representation,and conducts research on the actual requirements for constructin a railway signal interlocking design knowledge base.Finally this thesis designs the development framework and functional modules of the knowledge base platform.2.By analyzing the relevent knowledge content in the field of railway signal interlocking,this thesis studies the knowledge expression in the field of railway signal interlocking based on ontology,and constructs an ontology model of the filed of railway signal interlocking.3.In view of the current deficiencies in the knowledge retrieval based on keyword matching,the railway signal interlocking design knowledge base has introduced Solr-based full-text retrieval technology and ontology-based semantic expansion technology,and used these in the retrieval function of design knowledge to help improve the efficiency of users to find design knowledge.4.Aiming at the reasoning production rule knowledge in the railway signal interlocking design knowledge,this thesis introduces the Drools rule engine technology and designs the audit auxiliary module.This module realizes the review of the railway signal interlocking engineering data in the station,helping users to improve the review efficiency of the interlocking engineering data,and reducing the possibility of human error.Through the above research,this thesis builds a railway signal interlocking design knowledge base platform,realizes the standardized management and utilization of railway signal interlocking design knowledge,and improves the construction speed and quality of railway signal interlocking system.