CERTUS

retail inventory hardware comprised of antennas placed on shelves, radio frequency interrogators, radio-frequency identification tags to be placed on products, and data processing computers and software; warehouse tracking system comprised of antennas placed on forklifts or clamp trucks, radio frequency interrogators, radio frequency identification tags placed on inventory items, radio communication devices to transmit data from forklift truck to data processing computers and software, a radio frequency location system comprising antennas on lift or clamp truck, RFID (Radio Frequency Identification Device) tags embedded in floor of warehouse; inventory tracking system, comprising wireless network, GPS (Global Positioning System) location determination hardware and software, radio frequency identification tags to be placed on inventory, RFID (Radio Frequency Identification Device) interrogators to determine location of inventory inside of freight containers or trucks, data processing computer and software