On-line Monitoring And Fault Diagnosis System Based On Internet For Mill

The remote on-line monitoring and fault diagnosis of machine is one of fault diagnosis ways, which is a joint of computer networks and communications technology, Database and decision-making sustain technology, fault monitoring and fault diagnosis technology. People in the fields of the industries and sciences are more and more paying attention to the technologies based on the internet of remote online monitoring and fault diagnosis, and therefore, it is becoming of inevitable trend.This paper has exploited a software system for remote on-line monitoring and fault diagnosis based on internet for mill drives, making use of C++ Builder language and many technologies including ADO, ActiveX, ASP, JSP, Database , CORBA and SOAP /Web Service, etc . This software system is composed of remote monitoring system and fault diagnosis system. The remote on-line monitoring system includes layout of measuring points, real-time monitoring and signal alarm. This system has remote real-time monitoring, has solved the dynamic display of the real-time data and has alarm-function, handy calculating, perfect database saving. The remote fault diagnosis system is composed of statistics trend analysis, fault characteristic parameters, engineering site, data query, fault query and fault diagnosis ways. This system has trend forecasting, history data querying, and fault diagnosis ways in the time-domain, frequency-domain and amplitude-domain .Moreover, predicating the fault causation, style and serious degree combined with a fault diagnosis instance, the result is consistent with the fact. Clients do not load any application programs and if they know only URL of web server and put into IP, they can visit the software system because the software system adopts technologies based on B/S mode. To ensure security of the network, the system provides password system and firewall technology.Running in the labor proved that the system interface is friendly and easy to study. It has better security, well portability, well expandability and well stability. The system has some ideas to borrow for more perfect in the future.