Study On Train Carrying Malfunction Diagnosis Expert System Of Electric Locomotive

This paper introduced the concept of malfunction diagnosis expert system in detail, and the meaning of using the diagnosis system to electric locomotive for raising the safety of the electric locomotive movement, lowering various artificial output mistakes made perhaps by people,this system produce an important function.The expert system mainly is a computer programme system of intelligence, its inner part implies a great deal of certain expert knowledge and experience of the advanced level, and can make use of the knowledge of mankind's expert and the method of solving problem to handle the high level difficult problem, resolve the malfunction diagnosis problem of the complicated system with this.The expert diagnosis system made use of abundant fulfillment experience of experts, can simulate thinking way of experts to analyze and solve problems.This paper research malfunction diagnosis expert system based on SS4 electric locomotive .To the same with others, it according to the thinking way of expert system, the expert's knowledge, combine the expert's experience to point out malfunction reasons of SS4.But the difference is that, this expert system can carry on real time malfunction based on the electric locomotive signals which has already been collected. First, it collects the signals, including imitating signals, number signals and other various signals.Then, expert system receive these signals, and begin to diagnose.When finding malfunction phenomenon , system will give the clue on expert language. Motorman can solve the problem according to it.The thesis discussed how to write malfunction diagnosis logic sentence, and gave the part important sub- programme design frame about malfunction diagnosis. Introduced train carrying hardware design with the P87C591 single chip computer for core and ground malfunction diagnosis expert system software design with LabWindows/CVI as design environment. System can attain to the request that malfunction diagnosis can carry on both on train and ground.