PROBLEM TO BE SOLVED: To accurately detect the presence of a small-sized flying object having a plurality of rotors.SOLUTION: A flying object detection device 100 comprises an input unit 10 which acquires sound in a monitoring space as acoustic data, a first feature detection unit 16 which detects a howl from the acoustic data, a second feature detection unit 18 which detects a flat spectrum structure in a predetermined frequency band from the acoustic data and a flying sound determination unit 20 which determines that there is a flying object in the monitoring space in the case where the first feature detection unit 16 detects a howl and the second feature detection unit 18 detects the flat spectrum structure.SELECTED DRAWING: Figure 1
飛行物体検出装置
2019-10-16
Patent
Elektronische Ressource
Japanisch