Patent attributes
Interaction data provides information about particular items that have been picked or placed from a particular fixture. A radio signal that conveys designation data indicative of a particular user is coupled to a body of the user. A smart floor tile may emit the radio signal that is electromagnetically coupled to the user and propagates along the user's body. As the hand of the user approaches the fixture, the radio signal is received using antennas at the fixture. When the user touches an item, the propagation pathway may improve, resulting in an increase in received signal strength. By using information about the radio signal and the known location of the antennas, information such as a position of a hand of the user or which item has been picked or placed may be determined.
