Acoustic Inspector, created through LOAS' long-term research and development, is an inspection and tracking system optimized for the era of the 4th Industrial Revolution. Through the developed system, data such as abnormal noise and leaks (leakage) occurring in facilities can be stored, classified, predicted, and visualized in the low-cost cloud to prevent and predict future facility problems and facility safety in advance. there is. Through the use of multi-channel microphones and beamforming technology, we have developed the first system in Korea to objectify acoustic information, and it is being used as a diagnostic tester for abnormal noise for specific products produced in production facilities. Additionally, by utilizing the technology, an anti-drone system capable of detecting and tracking unmanned aerial vehicles at long distances can be implemented with its own technology.