Network-based performance degradation assessment method of rotary machine

The invention provides a network-based performance degradation assessment method of a rotary machine in the technical field of signal processing. The method comprises the following steps: collecting vibration signals, extracting characteristics and releasing the signals of field equipment by an enterprise monitoring station and an enterprise monitoring center; acquiring the characteristic vectors of the signals by a remote performance degradation assessment center through the Ethernet; and assessing the performance degradation of the characteristic vectors. According to the method, through the data collection of the field vibration signal, the Ethernet data communication and the performance degradation assessment training and prediction, online monitoring on the running condition of the rotary machine can be realized and the running state of the current equipment can be assessed.