of automatic operation.Due to the significant roles of the rotating machinery in the modern production process, to ensure the safety, reliability,economical and optimized operation, and to evaluation of the condition of the current equipment have become very important research fields. Thereinto, condition monitoring and fault diagnosis have been put more attention [1].
随着现代科技的发展，各种各样的旋转机械（如蒸汽机，风扇，风力发电机组等等）提升了自动控制的层次。由于旋转机械在现代生产过程中的重要作用，以确保安全性，可靠性，经济性和优化操作，并评价当前设备的状态已成为非常重要的研究领域。其中，状态监测和故障诊断已投入更多的关注。
The database technology and network technology were introduced in the current online monitor and fault diagnosis system for rotating machinery. It not only enhanced the technology of online condition monitor and provided more sufficient and reliable data for the fault diagnosis, but also made it possible to share the machinery information,ulteriorly to establish the fault analysis and diagnosis center in the special institute and provide the remote technique support for factory [2, 3, 4].
数据库技术和网络技术已经在旋转机械当前的在线监测和故障诊断系统中介绍过，它不仅提高了在线状态监测技术和为故障诊断提供更充分更可靠的数据，而且使得机械信息共享成为可能，进而在专门研究机构建立故障分析和诊断中心，为制造厂提供远程技术支持。