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System for determining a relative location of a plurality of items upon a plurality of platforms

  • US 10,181,112 B2
  • Filed: 10/08/2014
  • Issued: 01/15/2019
  • Est. Priority Date: 05/30/2007
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • attaching an identification indicium to each of a plurality of items upon a plurality of platforms, wherein the identification indicium includes a microchip, and the microchip stores therein an item identification code corresponding to an item the identification indicium is attached to;

    providing an antenna for scanning the identification indicium, wherein the antenna is located by an in-bound track, an out-bound track, or a roller that transports the plurality of platforms;

    positioning an unloading device a determined distance from the antenna for automatically unloading the plurality of items;

    scanning, by the antenna, a first identification indicium on a first item of the plurality of items;

    sending, by the first identification indicium, a first identification code corresponding to the first item to the antenna;

    transmitting, by the antenna, the first identification code to a reader;

    determining, by the reader, the first item is located on a first platform based on the first identification code;

    communicating, by the reader, location information of the first item to a server and the unloading device, wherein the location information of the first item includes the first identification code and information that the first item is located on the first platform;

    scanning, by the antenna, a second identification indicium on a second item of the plurality of items, wherein the second item is scanned immediately after the first item;

    sending, by the second identification indicium, a second identification code corresponding to the second item to the antenna;

    transmitting, by the antenna, the second identification code to the reader;

    determining, by the reader, a location of the second item by determining a relative position of the second item with respect to the first item, wherein determining the relative position of the second item with respect to the first item comprises;

    presetting a time interval threshold corresponding to a maximum time that may elapse between scanning two items located on a same platform based on length of the platform;

    calculating a time interval between the scanning of the first identification indicium on the first item and the second identification indicium on the second item;

    comparing the calculated time interval with the preset time interval threshold;

    determining the second item is located on the same platform as the first item when the calculated time interval is less than the preset time interval threshold;

    determining the second item is located on a consecutive platform when the calculated time interval is more than the preset time interval threshold;

    communicating, by the reader, location information of the second item to the server and the unloading device, wherein the location information of the second item includes the second identification code and information that the second item is located on the first platform or the consecutive platform based on the determined relative position of the second item with respect to the first item; and

    instructing the unloading device to automatically unload the first and second items based on the location information of the first and second items.

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