TECHNIQUES FOR IMAGING WIRELESS POWER DELIVERY ENVIRONMENTS AND TRACKING OBJECTS THEREIN

摘要

Techniques are described herein for imaging static or semi-static objects in a wireless power delivery environment and tracking non-static objects contained therein. More specifically, embodiments of the present disclosure describe techniques for determining the relative locations and movement of non-static objects in a wireless power delivery environment. Additionally, the techniques describe methods and system for generation of motion-based maps such as heat (or dwell maps) and flow maps.

主权项

1. A method for tracking objects in a wireless power delivery environment, the method comprising:
receiving, by multiple adaptively-phased radio frequency antennas of a wireless power delivery system, sequential beacon signals transmitted by multiple power receiver clients respectively in the wireless power delivery environment; generating, by the wireless power delivery system, a phase pattern for each received beacon signal,
wherein the phase pattern includes a measured phase of the received beacon at each of the multiple adaptively-phased radio frequency antennas; comparing the phase pattern to an expected phase pattern for each received beacon signal to identify phase differences,
wherein the expected phase pattern includes an expected phase of the received beacon signal at each of the multiple adaptively-phased radio frequency antennas; processing the phase differences to identify one or more non-static objects within the wireless power delivery environment; and tracking movement data associated with the one or more non-static objects within the wireless power delivery environment based on a three-dimensional image of the wireless power delivery environment and the phase differences,
wherein the three-dimensional image identifies shapes and relative locations of static objects within the wireless power delivery environment.