System for monitoring state of blades of aerogenerator

The invention provides a system for monitoring the state of blades of an aerogenerator and is used for monitoring the state of the blades of the aerogenerator. The system comprises a sensor acquisition subsystem and a wireless sensor network subsystem. The sensor acquisition subsystem is arranged on the blades of the aerogenerator and collects signals of the blades of the aerogenerator. The wireless sensor network subsystem converts the acquired signals of the blades of the aerogenerator into electric signals; according to the distribution characteristics and range of known typical fault independent characteristic signals, the section and range of the electric signals is narrowed, and part signals are extracted; and the part signals are compared with characteristic signals corresponding to typical faults, and the state of the blades of the aerogenerator is determined. The invention well monitors the operation state of the blades of the aerogenerator.