This invention relates to a
system and method for generating a virtual map of a
confined space. The invention includes the following steps: i) setting at least two
signal transmitting antennas at different fixed locations within a
confined space, such as a supermarket, shopping mall, convenience store, or grocery store, with
signal strength decreasing with distance from each antenna, and establishing multiple
signal strength coordinates in the
confined space through signal intersections provided by signals from the antennas; ii) allowing the use of a portable device, such as a
mobile phone, to scan a unique ID, such as a
barcode or QR code, of an item located at a location within the confined space; iii) registering the
signal strength coordinates of the item located at the location using a portable device, such as a
mobile phone; iv) transmitting the unique ID of the item and the registered
signal strength coordinates of the item to a computer
system; v) repeating steps ii) to iv) for other items located at other locations, and integrating the
signal strength coordinates with the unique ID of each item in the computer
system; vi) establishing a virtual map of multiple items within the confined space based on the integration in step v); and optionally vii) guiding consumers to one or more of the items, in part, based on the virtual map, by visualizing directions on a screen of a portable device, such as a
mobile phone, and / or by voice commands and / or by vibration.