Research And Application On Key Technologies Of Fault Diagnosis Expert System For Train Brake

With the progress of science and technology, modern train braking devices increasing technology content, features more perfect, but its internal structure is often very complex structure is also very closely interrelated. Once the internal failure of any structural element, may lead to unstable operation of equipment, or even the possibility of paralysis of the entire device. This will not only cause huge economic losses, severe personal safety will be endangered. Therefore, improving maintenance efficiency and fault diagnosis has practical significance.Network Fault Diagnosis Expert System with Integrated Intelligent Methods with the help expert system technology and network can diagnose the cause and find troubleshooting methods and shorten the braking equipment failure caused by the train stop Run time quickly and easily. The Degree thesismain tasks as follows:1,Combined with the structure and working principle of the train brake, the paper introduces analysises of its fault and discusses the technology to get fault status information;2,Elaborate the theory of distributed systems, the paper introduces the distributed train-brake fault diagnosis system design strategy and the network structure of distributed train-brake fault diagnosis system based on the structure of the local distributed train-brake fault diagnosis system;3,Designs the structure of train-brake fault diagnosis expert system.The paper introduces the object-oriented knowledge representation method, and the fault diagnosis reasoning mechanism for train-brake based on precise knowledge, and the fault diagnosis reasoning mechanism for train-brake based on Neural network, and the fault diagnosis reasoning mechanism with these two he fault diagnosis reasoning mechanisms;4,Analysises system functional requirements. The paper introduces the function moduledivides and work flow of the system,detailed design,the realize of the system functions of the system,With all the technology to the continuous development of the related field, distributed fault diagnosis expert system will absorb many new technologies,and develop more perfect, and create greater economic and social benefits.