Patent ID: 9637151
Date: 2017-05-02
CPC Classifications: A47F,B60K,B60T,B62B,G01C,G06K,G06Q,G08B,G08G,H02K,H04W,Y10T

Claim:
1. An automated method of detecting an unauthorized exit of a shopping cart from a store, the method comprising: emitting, with a signal emitter, radio frequency signals into a checkout area of the store; detecting the radio frequency signals with a cart transceiver attached to a shopping cart, the cart transceiver comprising a wireless communication system and a controller; determining, based on the detected radio frequency signals, that the shopping cart is located in the checkout area; and automatically determining, based on recent history information of the shopping cart, whether the shopping cart is authorized to exit the store, wherein the recent history information comprises an amount of time the shopping cart spent in the checkout area and the distance traveled by the shopping cart in the checkout area.