To analyze a frequency of an audio signal generated from a consumer apparatus, and estimate a failure and an abnormality as a precursor of the consumer apparatus.
An apparatus failure evaluation system is equipped with: an audio measurement apparatus 8 for measuring the audio signal generated from a load apparatus (including a facility, a device and a component) 7 supplied with power; a frequency component calculation means 11 for analyzing a waveform of the measured audio signal, and calculating an actually measured frequency component; a data storage means 12 for storing a frequency-abnormal pattern having a frequency-abnormal frequency component estimated as a frequency abnormality for inducing the failure and the precursor in each load apparatus; a frequency component coincidence calculation means 13 for calculating a frequency component coincidence between an actually-measured frequency component calculation result and a plurality of frequency-abnormal frequency components; and a frequency abnormality output means 14 for estimating the frequency-abnormal pattern as the failure and its precursor in the load apparatus from each frequency component coincidence, and outputting or displaying it.
IINO MINORU
MIYABE TAKASHI
YAMAMOTO SAIJI
| JPH07159231A | 1995-06-23 | |||
| JPH09166483A | 1997-06-24 | |||
| JP2003233381A | 2003-08-22 | |||
| JPH04285440A | 1992-10-09 |
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen