| 摘要 |
The invention relates to a method for identifying signs of faults occurred to electric tools. According to the invention, when a fault occurs to an electric tool, at least one microphone at least temporarily detects a noise produced by the electric tool. The noise, after the initiation of the operation and/or control of a system for user interaction and a system for signal processing, is received by the system for signal processing via a microphone in the form of an audio signal, and the system for signal processing subsequently performs fault diagnosis on the noise, so that the audio signal received and/or data extracted from the audio signal are subsequently transmitted to a system for identifying faults, wherein the system for identifying faults uses the audio signal received and/or the data extracted from the audio signal for the self-calibration by means of a reference audio signal stored in at least one database and/or data extracted from the reference audio signal so as to perform faul classification on the faults of the electric tool. |
