Detection of groups of RFID tags
View Patent ↗RFID-based inventory management systems are provided for various applications. Such systems include a plurality of RFID-readable products tags, with each product tag being associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise. Such systems also include an RFID reader capable of sending and receiving signals from the product tags. Such systems further include a processor capable of receiving signals from the RFID reader with information regarding the product tags. The processor compares the information regarding two or more product tags to determine whether they are being moved together as part of a moving group. If the processor determines that there exists a moving group of product tags, it generates an output based at least in part on the signals being sent from the product tags in the moving group.
1. An RFID-based inventory management system comprising:
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags; and
a processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together,
generate an output based at least in part on the signals being sent from the product tags in the moving group, and
wherein the processor is programmed with a carry limit corresponding to an ability of a person to carry pieces of merchandise and the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags if the moving group exceeds a carry limit.
2. The RFID-based inventory management system of claim 1 , wherein the signals generated by the product tags include information related to a weight of the associated piece of merchandise.
3. The RFID-based inventory management system of claim 2 , wherein the output generated by the processor is an alert to provide assistance in the vicinity of the moving group of product tags based at least in part on a combined weight of the pieces of merchandise in the moving group.
4. The RFID-based inventory management system of claim 1 , further comprising an RFID-readable personal tag, wherein the personal tag is programmed to generate a signal including information regarding a person and the processor is programmed to determine if the personal tag is part of or adjacent to the moving group.
5. The RFID-based inventory management system of claim 4 , wherein the output generated by the processor is based at least in part on a signal from the personal tag.
6. The RFID-based inventory management system of claim 1 , wherein the processor is programmed to determine the approximate velocity of movement of one of said pieces of merchandise based at least in part on the signal from the associated product tag.
7. The RFID-based inventory management system of claim 1 , wherein the processor is programmed to determine the approximate direction of movement of one of said pieces of merchandise based at least in part on the signal from the associated product tag.
8. An RFID-based inventory management system comprising:
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags; and
a processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together,
generate an output based at least in part on the signals being sent from the product tags in the moving group,
wherein the signals generated by the product tags include information related to a volume of the associated piece of merchandise, and
wherein the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags based at least in part on a combined volume of the pieces of merchandise in the moving group.
9. An RFID-based inventory management system comprising:
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags; and
a processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together,
generate an output based at least in part on the signals being sent from the product tags in the moving group
the signals generated by the product tags include information related to a size of the associated piece of merchandise, and
wherein the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags based at least in part on a combined size of the pieces of merchandise in the moving group.
10. An RFID-based inventory management system comprising;
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags;
an assistance device and an RFID-readable assistance device tag associated with the assistance device, wherein a processor is programmed to determine if the assistance device tag is part of or adjacent to a moving group;
the processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together, and
generate an output based at least in part on the signals being sent from the product tags in the moving group.
11. The RFID-based inventory management system of claim 10 , wherein the output generated by the processor is based at least in part on a signal from the assistance device tag.
12. The RFID-based inventory management system of claim 10 , wherein
the processor is programmed with a carry limit corresponding to the ability of a person to carry pieces of merchandise;
the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags if the moving group exceeds the carry limit; and
the processor is programmed to modify the carry limit if the assistance device tag is part of or adjacent to the moving group.
13. An RFID-based inventory management system comprising:
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags; and
a processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together,
generate an output based at least in part on the signals being sent from the product tags in the moving group, and
the signals generated by the product tags include information related to a category of the associated piece of merchandise, and
wherein the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags if at least a predetermined quantity of the product tags in the moving group have related and/or the same categories.
14. An RFID-based inventory management system comprising:
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags; and
a processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together,
generate an output based at least in part on the signals being sent from the product tags in the moving group,
the signals generated by the product tags include information related to a price of the associated piece of merchandise, and
wherein the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags based at least in part on the combined price of the pieces of merchandise in the moving group.
15. An RFID-based inventory management system, comprising:
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags; and
a processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together,
generate an output based at least in part on the signals being sent from the product tags in the moving group, and
wherein the signals generated by the product tags include information related to a frequency of theft of the associated piece of merchandise.
16. The RFID-based inventory management system of claim 15 , wherein the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags based at least in part on the combined frequency of theft of the pieces of merchandise in the moving group.
17. An RFID-based inventory management, comprising:
a plurality of RFID-readable product tags each associated with a piece of merchandise and programmed to generate a signal containing information regarding the associated piece of merchandise;
an RFID reader capable of sending signals to and receiving signals from said product tags; and
a processor capable of receiving signals from the RFID reader with information regarding said product tags and programmed to:
compare the information regarding two or more of said product tags,
determine whether said two or more product tags are part of a moving group being moved together,
generate an output based at least in part on the signals being sent from the product tags in the moving group, and
wherein the signals generated by the product tags include information related to an expected quantity of the associated piece of merchandise.
18. The RFID-based inventory management system of claim 17 , wherein the output generated by the processor is an alert to provide assistance in a vicinity of the moving group of product tags if the quantity of a particular piece of merchandise in the moving group exceeds said expected quantity.
19. An RFID-based method of managing inventory, comprising:
providing a plurality of pieces of merchandise;
providing a plurality of RFID-readable product tags, with each product tag associated with one of said pieces of merchandise and capable of generating a signal containing information regarding the associated piece of merchandise;
receiving signals from two or more of said product tags;
processing the signals from said two or more product tags to determine whether the two or more product tags are part of a moving group being moved together; and
generating an output if it is determined that the two or more product tags are part of a moving group
said receiving signals from two or more of said product tags includes receiving signals having information related to a weight of the associated pieces of merchandise, and
wherein said generating an output includes generating an alert to provide assistance in a vicinity of the moving group of product tags based at least in part on a combined weight of the pieces of merchandise in the moving group.
20. The method of claim 19 , wherein said receiving signals from two or more of said product tags includes receiving signals having information related to a volume of the associated pieces of merchandise.
21. The method of claim 20 , wherein said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags based at least in part on a combined volume of the pieces of merchandise in the moving group.
22. The method of claim 19 , wherein said receiving signals from two or more of said product tags includes receiving signals having information related to a size of the associated pieces of merchandise.
23. The method of claim 22 , wherein said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags based at least in part on a combined size of the pieces of merchandise in the moving group.
24. The method of claim 19 , wherein said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags if the moving group exceeds a carry limit corresponding to a ability of a person to carry pieces of merchandise.
25. The method of claim 19 , further comprising providing an RFID-readable personal tag including information regarding a person, wherein said generating an output includes determining if a personal tag is part of or adjacent to the moving group.
26. The method of claim 25 , wherein said generating an output includes generating an output based at least in part on a signal from the personal tag.
27. The method of claim 19 , wherein said receiving signals from two or more of said product tags includes receiving signals having information related to the categories of the associated pieces of merchandise.
28. The method of claim 27 , wherein said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags if at least a predetermined quantity of the product tags in the moving group have related and/or the same categories.
29. The method of claim 19 , wherein said receiving signals from two or more of said product tags includes receiving signals having information related to the price of the associated pieces of merchandise.
30. The method of claim 29 , wherein said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags based at least in part on a combined price of the pieces of merchandise in the moving group.
31. The method of claim 19 , wherein said receiving signals from two or more of said product tags includes receiving signals having information related to a frequency of theft of the associated pieces of merchandise.
32. The method of claim 31 , wherein said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags based at least in part on a combined frequency of theft of the pieces of merchandise in the moving group.
33. The method of claim 19 , wherein said receiving signals from two or more of said product tags includes receiving signals having information related to an expected quantity of the associated pieces of merchandise.
34. The method of claim 33 , said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags if the quantity of a particular piece of merchandise in the moving group exceeds said expected quantity.
35. The method of claim 19 , wherein said processing the signals from said two or more product tags includes processing the signals to determine the approximate velocity of movement of said two or more product tags.
36. The method of claim 19 , wherein said processing the signals from said two or more product tags includes processing the signals to determine the approximate direction of movement of said two or more product tags.
37. An RFID-based method of managing inventory, comprising:
providing a plurality of pieces of merchandise;
providing a plurality of RFID-readable product tags, with each product tag associated with one of said pieces of merchandise and capable of generating a signal containing information regarding the associated piece of merchandise;
receiving signals from two or more of said product tags;
processing the signals from said two or more product tags to determine whether the two or more product tags are part of a moving group being moved together;
generating an output if it is determined that the two or more product tags are part of a moving group; and
providing an assistance device and an RFID-readable assistance device tag associated with the assistance device, wherein said generating an output includes determining if an assistance device tag is part of or adjacent to the moving group.
38. The method of claim 37 , wherein said generating an output includes generating an output based at least in part on a signal from the assistance device tag.
39. The method of claim 37 , wherein said generating an output includes generating an alert to provide assistance in the vicinity of the moving group of product tags if the moving group exceeds a carry limit corresponding to a ability of a person to carry pieces of merchandise and the carry limit is modified if an assistance device tag is part of or adjacent to the moving group.