A multi-channel remote vibration signal monitoring system and monitoring method based on a clustering algorithm

Abstract

The invention discloses a multi-channel remote vibration signal monitoring system and monitoring method based on a clustering algorithm, the monitoring system comprises an upper computer part and a multi-channel remote vibration signal monitor, the upper computer part includes a Labview interface design part and a Python data processing part. The monitor includes a lower computer, a GPRS wirelesstransmission module and a power supply module. The upper computer and lower computer are connected through the GPRS wireless transmission module, and the power supply module supplies power to the monitor. The method comprises the following steps: the lower computer part controls multiple vibration sensors in the data acquisition part by a single-chip microcomputer to cooperatively complete multi-channel vibration signal data acquisition, and uploads the data to the upper computer part through the GPRS wireless transmission module; and the upper computer part designs a GUI interface through Labview, and calls Python to finish sample data processing through an internal interface function. The invention can realize multi-channel remote vibration signal data processing, analysis and monitoringfunctions.

Description

technical field [0001] The invention belongs to the field of fault diagnosis of mechanical equipment, in particular to a multi-channel remote vibration signal monitoring system and monitoring method based on a clustering algorithm. Background technique [0002] Large-scale rotating mechanical structures, such as steam turbine generators, hydroelectric generators, and flue gas turbines, generally use sliding bearings to support the shaft, and the relative vibration of the shaft to the bearing is monitored through a vibration monitoring and protection system. The vibration monitoring and protection system includes two eddy current sensors, which are used to measure the vibration of the two channels respectively. However, since the two eddy current sensors can only measure the vibration signals of two positions of the mechanical structure, but the structure of the unit, the operating parameters and the anisotropy of the bearing oil film stiffness in the circumferential directio...

AI Technical Summary

Problems solved by technology

However, since the two eddy current sensors can only measure the vibration signals of two positions of the mechanical structure, but the structure of the unit, the operating parameters and the anisotropy of the bearing oil film stiffness in the circumferential direction, etc., lead to the vibration signals in the two directions. There are usually certain differences in vibration, for example, the vibration in one direction is larger and the vibration in the other direction is smaller, which brings certain difficulties to the alarm and abnormal judgment of the vibration monitoring and protection system; and the monitoring information must be obtained through on-site real-time monitoring, and further It is transmitted to the remote terminal, which brings inconvenience to the actual monitoring work of the company and mechanical equipment

Images