Patent ID: 11909228
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  B  Y | IPC B  H

Claim 3:
4. The method according to claim 3, wherein the abnormal-value threshold comprises a first threshold and a second threshold greater than the first threshold, and the determining whether the induction signals of the coil group have an abnormal value comprises:
determining whether the induction signals of the coil group have a signal value less than the first threshold or greater than the second threshold; and
if the induction signals of the coil group have a signal value less than the first threshold or greater than the second threshold, determining that the induction signals of the coil group have an abnormal value; or
if the induction signals of the coil group have no signal value less than the first threshold or greater than the second threshold, determining that the induction signals of the coil group have no abnormal value.