Railway Signaling Equipment Fault Diagnosis Expert System Technology Research

The signal equipment is one of the basic equipments for railroad transportation.It acts like the ears,eyes and central nervous system of a person.Information reflecting the condition of on -road train and the command issued are transferred by this equipment. The signal equipment is a huge and complicated system.Generally,the malfunction of signal equipments would become the serious potential to a major accident,if it can't be handled timely,which would pose a great threat to the safety of railway transportation. The technology knowledge and the practical experience of the maintenance personnel would directly affect the promptness,appropriateness,efficiency,and the way to deal with equipment problems.The signal survey system is a important equipment to insure the train safety, strengthen the signal equipment department management and inspect train signal's working quality.It combines the latest technology of sensor,bus mastering,computer communication,data base and software engineering,by inspecting and recording the main working status so as to provide a scientific basis to the railroad branch in taking the control of the equipment's current status and analyzing the accidents.As the monitored data of computer is real-time,however,the artificial analysis data doesn't have this characteristic,so we can't prevent accidents according to the monitor's data changes.The contradiction between the equipments' repairing,management and usage is becoming more and more serious.It is imperative to add specialists,artificial intelligence,regulation, scientific procedures to the equipment maintenance to satisfy the developing trend of the information society and heavy-load,high-speed railway transportation.This article makes out a intelligent analysis system by making the use of the real-time data from the signal monitor system and taking the advantage of the artificial intelligence technique which is more and more popular.It catches malfunction and analyses function status in order to satisfy the equipments breakdown demand of the railroad signal.Among this system,knowledge base is achieved by deeply analyzing knowledge acquisition and knowledge representation.Inference rules are also inquired by studying and researching.