WindNode: A Long-Lasting And Long-Range Bluetooth Wireless Sensor Node for Pressure and Acoustic Monitoring on Wind Turbines

There is a clear need for advanced solutions for continuous monitoring and data collection, especially for producing publicly available datasets, because the research field is relatively new.

“Indeed, since this research field is relatively new, there is a clear need for advanced solutions for continuous monitoring and data collection, especially for producing publicly available datasets [3].”

In one of the authors' previous papers, they demonstrated the practical possibility to use MEMS sensors in this context, such as measuring the sound level and the pressure distribution on a blade.

“Moreover, in one of our previous papers [3], we demonstrated the practical possibility to use MEMS sensors in this context, such as measuring the sound level and the pressure distribution on a blade.”

Energy consumption in active and sleep mode, communication power, range and bandwidth are critical parameters in this application scenario due to the size of the turbine and the number of deployed sensors.

“Some of those are the energy consumption in active and sleep mode, the communication power, range and bandwidth [11] -all critical parameters in this application scenario due to the size of the turbine and the number of deployed sensors [3].”

For vibration monitoring scenarios, the system has to process and transmit an amount of data in the range of 5 kbps, while for aerodynamic analysis, a throughput larger than 1 Mbps is necessary.

“In these scenarios, the system has to process and transmit an amount of data in the range of 5 kbps, while for aerodynamic analysis, a throughput larger than 1 Mbps is necessary [3].”

It is crucial to design energy-efficient and reliable devices able to acquire, process and transmit data for several years and eventually for the full wind turbine lifetime, exploiting environmental sources such as small solar photovoltaic panels.

“Thus, it is crucial to design energy-efficient and reliable devices able to acquire, process and transmit data for several years and, eventually, for the full wind turbine lifetime, exploiting environmental sources such as small solar photovoltaic panels [3], [4], [10].”

Applying a custom calibration can improve the accuracy substantially.

“However, this can be addressed by applying a custom calibration, which can improve the accuracy substantially [3].”

The needed accuracy P_acc,min of the absolute pressure sensors was defined to be at most 1% of the dynamic pressure range P_dyn,avg at average wind speeds.

“Moreover, the needed accuracy P acc,min of the absolute pressure sensors was defined to be at most 1% of the dynamic pressure range P dyn,avg at average wind speeds [3].”

A sampling of 100 times per rotation generated high-quality measurements and model reconstruction.

“For the sampling rate, in [3] it was defined that a sampling of 100 times per rotation generated high-quality measurements and model reconstruction.”