Research On Realization Method Of Turnout Equipment Fault Diagnosis Expert System

The railway traffic safety is an important goal of the railway transportation. The turnout equipment is the main equipment of railway signal equipment and they are the main facilities to guarantee the railway traffic safety.However,the railway signal equipment fault becomes the most potential to a major accident. If you can’t handle it in time,it will threat the railway traffic safety directly.Therefore,to ensure the turnout equipment in good work has the extremely vital significance to the railway transportation security.How to adapt to the new situation of the railway development and use the modern new technology to build a turnout equipment fault diagnosis system to guarantee the raiyway transportation safety is an important topic to be solved.Based on the complexity of the turnout equipment itself constitute,especially the complexity of the control circuit and the equipment using and the environment factors,so that the actual reason of the equipment failure is very complex,and has the obvious random uncertainty and fuzziness,so the turnout equipment fault diagnosis is solved through to build expert system.How to choose appropriate complex fault diagnosis method based on the turnout equipment fault mechanism is a key issue to be researched to build a practical turnout equipment fault diagnosis expert system.The paper combined to the scientific research of the key research projects of Ministry of Railways"Research and Development of the Expert System of the Railway Signal Equipment Fauilt Diagnosis",for this background to research topic selection of the railway signal turnout equipment fault diagnosis module,and design analysis total structure of the fault diagnosis expert system and the prototype development,try to establish and develop expert system,to supply decision support for failure analysis and diagnosis.The paper based on the domestic and abroad research status analysis,based on the design concept that the turnout equipment failure can be prevented:find the equipment duality hidden dangers and analysis equipment quality condition trough analysising the change rule of electrical parameters,and put forward maintenance instruction opinion,in order to facilitate maintenance and viod failure appear.Through to the analysis the turnout equipment fault mechanism,analysis the turnout said supervision,turnout transition and turnout transition resistance.Based on the examples,through the analysis the dispersed,isolated and staccato data collected by microcomputer monitoring,found the anomalous change of the correlation, integrated, continuous turnout equipment state and analyzed.The paper developed the system platform using programming language C++,set up the knowledge base and comprehensive database,and raise the knowledge representation method based on the rules,carry on the turnout simulation by compter,and realize the turnout equipment fault diagnosis intelligently.This system can provide analysis thereunder and theoretical basis for the developerntand applicati-on of the actual system,and its prototype mainly includes turnout said supervision analysis,turnout transition analysis,turnout transition resistance analysis, database viewer and maintenance, knowledge base maintenance technology content.