ABNORMAL SOUND DIAGNOSIS DEVICE AND ABNORMAL SOUND DIAGNOSIS SYSTEM

PROBLEM TO BE SOLVED: To solve the problem that variation due to difference in various conditions between determination sound data characteristics and sound data characteristics during diagnosis is erroneously detected as abnormality because differences in variation of time-frequency characteristics of sound of a vehicle as a determination object device among conditions such as temperature, atmosphere, humidity, speed, acceleration, pressure, tension, and load are not considered to determine abnormal sound by comparing a corrected determination value resulting from correcting an abnormal sound determination value of the vehicle by vehicle characteristics such as a size of the vehicle, irregularities of a road surface, an ambient temperature, and an atmosphere, with sound data of the vehicle.SOLUTION: A waveform of sound from a determination object device or an analysis result of the waveform is acquired as sound data by sound data acquisition means, and sensing data of one of temperature, atmosphere, humidity, speed, acceleration, pressure, tension, and load relating to the device is acquired by sensing data acquisition means, and reference sound data is generated on the basis of the sensing data by reference sound data generation means, and the reference sound data and the sound data acquired during diagnosis are compared with each other to detect abnormality of sound of the device by determination means.