In-device abnormal noise coordinate detection system and in-device abnormal noise coordinate detection method

摘要

PROBLEM TO BE SOLVED: To provide an in-device abnormal noise coordinate detection system and an in-device abnormal noise coordinate detection method having improved accuracy of position coordinate detection. SOLUTION: A sound wave that irradiates a specific sound wave, a microphone that collects the sound wave, a storage unit that stores the data of the specific sound wave and the data of the collected sound wave, the shape of the inspection target, and the inspection target are configured. The input unit that inputs each physical property value and sound wave of the material to be used and the position of the microphone on the inspection target and stores it in the storage unit, the specific sound wave data stored in the storage unit, the shape of the inspection target, and the inspection target. A calculation unit that calculates the waveform of the sound wave collected by the microphone when a specific sound wave is radiated from the sound wave from the physical property values of the materials that make up the sound wave and the position of the sound wave on the inspection target of the microphone. In preparation, the calculation unit further squares the difference between the sound wave waveform of the collected sound wave and the calculated sound wave waveform, and further calculates the physical property value at which the evaluation function obtained by time integration is the minimum value. The gist is to prepare. [Selection diagram] Fig. 1