Nested visibility for a container hierarchy

• US 7,173,530 B2
• Filed: 05/06/2004
• Issued: 02/06/2007
• Est. Priority Date: 04/09/2003
• Status: Active Grant

• Current Assignee: Savi Technology Incorporated
• Original Assignee: Savi Technology Incorporated
• Inventors: Lambright, Stephen J., LaCorte, Blair B., Rajapakse, Ravindra U., Shannon, David L., Chang, Leo S.
• Primary Examiner(s): Lieu, Julie Bichngoc
• Application Number:
  US10/841,368
• Publication Number:
  US 20050024200A1
• Time in Patent Office: 1,006 Days
• Field of Search: 340/572.1, 340/539.1, 340/539.13, 700/7, 700/103.X, 700/205
• US Class Current: 340/572.8
• CPC Class Codes: G06K 17/0029 the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: G08B 13/2462 Asset location systems combined with EAS inventory, tracking, logistic G06Q10/00; entrance control systems G07C9/00
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence

Abstract

A nested container establishes a relative hierarchy of associated containers as logistical units. The relative hierarchy comprises lower-layer containers and upper-layer containers relative to the nested container. To do so, the nested container sends interrogation signals to neighboring containers in order to retrieve identification information and layer information. Also, the nested container sends its own information identification information and layer information responsive to received interrogation signals. The nested container outputs the relative hierarchy to, for example, a site server or agent using a hand-held device. The identification module comprises, for example, an RFID (Radio Frequency IDentification) device.

Claims

1. In an associated container within a plurality of nested containers, each nested container having automatic identification technology, a method for tracking the plurality of nested containers, comprising the steps of:

receiving identification information and layer information from at least one of the plurality of nested containers; and

establishing a relative hierarchy within the plurality of nested containers based on the identification information and the layer information, the relative hierarchy being capable of including one or more lower-layer containers and one or more upper-layer containers.

2. The method of claim 1, wherein nested containers at different layers of the relative hierarchy are capable of establishing the relative hierarchy.

3. The method of claim 1, further comprising:

providing item-layer visibility by including items in the relative hierarchy.

4. The method of claim 1, wherein the plurality of containers comprise heterogeneous automatic identification technologies to send the identification information and the layer information.

5. The method of claim 1, further comprising:

receiving relative hierarchy information from at least one of the plurality of nested containers.

6. The method of claim 1, further comprising:

sending an interrogation signal to at least one of the plurality of nested containers.

7. The method of claim 1, further comprising:

outputting the relative hierarchy.

8. The method of claim 1, further comprising:

outputting the relative hierarchy responsive to a query by a tracking system.

9. The method of claim 1, further comprising:

wherein the plurality of nested containers comprises one or more from the group containing;

an item, a package, a carton, a unit load, a container, and a vehicle.

10. An associated container within a plurality of nested containers, each nested container having automatic identification technology, comprising:

an input to receive identification information and layer information from at least one of the plurality of nested containers; and

an association module to establish a relative hierarchy within the plurality of nested containers based on the identification information and the layer information, the relative hierarchy being capable of including one or more lower-layer containers and one or more upper-layer containers.

11. The container of claim 10, wherein nested containers at different layers of the relative hierarchy are capable of establishing the relative hierarchy.

12. The container of claim 10, further wherein the association module provides item-layer visibility by including items in the relative hierarchy.

13. The container of claim 10, wherein the plurality of containers comprises heterogeneous automatic identification technology to send the identification information and the layer information.

14. The container of claim 10, wherein the input receives relative hierarchy information from at least one of the plurality of nested containers.

15. The container of claim 10, wherein the input sends an interrogation signal to at least one of the plurality of nested containers.

16. The container of claim 10, further comprising an output to send the relative hierarchy.

17. The container of claim 10, further comprising an output to send the relative hierarchy responsive to a query by a tracking system.

18. The container of claim 10, wherein the plurality of nested containers comprises one or more from the group containing:

an item, a package, a carton, a unit load, a container, and a vehicle.

19. A computer product, having a computer-readable medium having computer program instructions embodied thereon capable of causing a computer to perform a method for tracking a plurality of nested containers, the method comprising:

receiving identification information and layer information from at least one of the plurality of nested containers; and

establishing a relative hierarchy within the plurality of nested containers based on the identification information and the layer information, the relative hierarchy being capable of including one or more lower-layer containers and one or more upper-layer containers.

20. The computer product of claim 19, wherein nested containers at different layers of the relative hierarchy are capable of establishing the relative hierarchy.

21. The computer product of claim 19, wherein the method further comprises:

providing item-layer visibility by including items in the relative hierarchy.

22. The computer product of claim 19, wherein the plurality of containers comprise heterogeneous automatic identification technologies to send the identification information and the layer information.

23. The computer product of claim 19, wherein the method further comprises:

receiving relative hierarchy information from at least one of the plurality of nested containers.

24. The computer product of claim 19, wherein the method further comprises:

sending an interrogation signal to at least one of the plurality of nested containers.

25. The computer product of claim 19, wherein the method further comprises:

outputting the relative hierarchy.

26. The computer product of claim 19, wherein the method further comprises:

outputting the relative hierarchy responsive to a query by a tracking system.

27. The computer product of claim 19, wherein the plurality of nested containers comprises one or more from the group containing:

an item, a package, a carton, a unit load, a container, and a vehicle.