Patent ID: 8463540
Filing Date: 2013-06-11
Classification: A47F,B60K,B60T,B62B,G01C,G06K,G06Q,G08B,G08G,H02K,H04W,Y10T

Abstract:
1. A system for use on a shopping cart to enable movement of the shopping cart to be monitored and controlled, the system comprising: a shopping cart wheel; a braking mechanism configured to inhibit movement of the shopping cart; and electronic circuitry coupled to the braking mechanism, said electronic circuitry configured to detect signals that reflect a current location of the shopping cart wheel, and to transmit status messages via a wireless radio frequency (RF) link, including status messages reflective of said signals detected by the electronic circuitry, said electronic circuitry comprising: wherein the electronic circuitry is configured to determine, based at least in part on messages received over the RF link with the RF transceiver, whether to respond to detection of a VLF signal by the VLF receiver by activating the braking mechanism.