Research And Development Of Network Based Remote Monitoring And Diagnosis System For Large Rotating Machinery

Taking the fault diagnosis of large rotating machinery as the object of study, this dissertation systematically and deep going study on the large rotating machinery remote monitoring and diagnosis system based on network., from technique theories to practical applies, based on recent research status both in and out of China. This dissertation consists of following main parts:Chapter 1 summarizes the important role of monitoring and diagnosis technology for large rotating machinery in modern manufacturing, details the research status and development trend of monitoring and diagnosis system of large rotating machinery. Describe the technique of network based remote monitoring and diagnosis of large rotating machinery, combined with the development of network technology and the construction of Information Superhighway. Then the source, goal and main contents of this dissertation are presented.Chapter 2 analyses the main demand of this system put forward the thoughts of system design. The main function and structure of this system are designed and described by data flow chart. Then the main network architecture of this system are designed, mainly include the design of topological structure of the network, network protocol, hardware and software environment of network and the security solution of network. Solutions of this main network architecture are described correspondingly.Chapter 3 analyses the function and structure of each monitoring workstation, describe the main fuction of local monitoring and diagnosis server, implement the management of data in database and data files. Deeply discuss how to configure of web server. Local monitoring and diagnosis system is integrated with the intranet of corporation.Chapter 4 analyses the data communication inside of local monitoring and diagnosis system, implement long distance data transmission, and study on some kind of communication way between local system and remote system, realize the security of network with application of firewall.Chapter 5 studies on remote condition monitoring and signal analysis of dynamic signal, static signal and switch signal, realize remote monitoring and signal analysis for all these data signal.Chapter 6 studies on the architecture of network based remote diagnosis service centre, design the main function module, which is based on monitoring and diagnosis service system, database system, network management system and information service system. The solutions of system are put forward based on the function analysis of system.Chapter 7 summarizes the main results and conclusions of this dissertation.