Patent ID: 11904712
Assignee: INDUCTEV, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC B  G  H  Y | IPC B  G  H

Claim 0:
1. A method of detecting foreign objects impinging on a ground transceiver assembly (GTA) of a wireless power transfer (WPT) station, comprising:
observing an area surrounding a charging position of the GTA using at least one camera;
analyzing images from the at least one camera to identify changes or features indicative of introduction of a foreign object onto an exposed surface of the GTA or in the area surrounding the GTA;
triggering an impedance inspection of the GTA in response to determining the images are indicative of presence of the foreign object on the exposed surface of the GTA or in the area surrounding the GTA, wherein the impedeance inspection of the GTA comprises sending a test alternating current to a coil assembly of the GTA and measuring an impedance of the GTA; and
initiating a failsafe operation when presence of the foreign object on the surface of the GTA is confirmed by the impedance inspection.