<p>➀ Fraunhofer IIS and IWES developed a chip-based acoustic sensor system to remotely monitor internal damages (e.g., cracks) in wind turbine blades, reducing costly offshore maintenance;</p><p>➁ The solution captures structural sound waves via body sensors, identifies damage-specific acoustic patterns, and transmits only critical data via mobile networks for low-bandwidth efficiency;</p><p>➂ The ongoing project expands the system to detect lightning strikes, building on prior prototypes to enhance offshore wind farm reliability and optimize maintenance.</p>