However, for the requirements of equipment management nowadays, the current network-based online monitoring system remains some defects as follows: (a) the measure point (MP), the interfaces of the software and the hardware had been fixed before developing of the monitoring system, therefore it was difficult to adapt the modern plant with numerous and various equipment; (b) the object of the current system was always the machinery or equipment, and it was difficult to achieve the goal of centralized management to the modern plant; (c) the data acquisition strategy was simple and cannot be changed with the change of the equipment state, and it was easily lead to the miss of the critical fault data and effected the accuracy of the fault diagnosis; (d) the tools and methods for signal analysis and fault diagnosis were simple and could not meet the demand of information fusion[5, 6].
然而，对于当前的设备管理要求，目前的这种基于网络在线监测系统仍然存在一些缺陷，如下：（a)测量点（MP),在监测系统研发之前，系统的软件和硬件的接口已经被固定了，因此该系统很难适应现代工厂众多和各种各样的设备；（b)当前系统的对象仍然是机械装置或者设备，现代工厂很难实现集中管理的目标；（c)数据采集策略很简单，也不能随着设备状态的变化而变化，而且很容易导致决定性错误数据的缺失和影响故障诊断的准确性；（d)信号分析和故障诊断的工具和方法简单而且不能满足信息融合的需求。
Therefore, developing the system efficiently and reliably become a key