To assure the reliability of operation and affectivity of maintenance, it is useful to apply new technology to search information from sponge data of propulsion machinery and maintenance system.

• 为保证动力装置的可靠运行和高效维修，从长期的运行中积累的海量数据发现新的知识，有必要在其设备监测诊断系统中引入新的技术和手段，进而掌握设备运行的内在规律。