Patent ID: 11965480
Assignee: OCEAN UNIVERSITY OF CHINA
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 6:
7. An acoustic monitoring method for a health status of an offshore wind turbine and an ocean wave using the acoustic monitoring system according to claim 6, the method comprising:
when a blade touches the laser light of the first laser transmitter during an operation of the wind turbine, activating, by the controller, the micro-signal stethoscopes to acquire and send an acoustic signal of blade movement to the controller;
when the blade is increasingly deformed and touches the laser light of the second laser transmitter, activating, by the controller, the telephoto camera to shoot a shape of the blade, and determining whether the wind turbine needs to be shut down to protect the blade according to a level of damage to the blade;
the acoustic monitoring method further comprises: determining the blade with a large deformation by the laser lights, wherein the laser lights are emitted by the first laser transmitter and the second laser transmitter and reflected with different color spectra by the different smooth color coatings at the blade tips; and
the acoustic monitoring method further comprises: detecting, by the vibration detection sensor, a vibration signal of the tower of the wind turbine, transmitting the vibration signal to the controller in real time, and triggering an alarm to stop the wind turbine when a vibration distance of the tower exceeds a set value.