Methods and systems for verifying the position and status of hierarchically arranged objects

• US 7,088,229 B2
• Filed: 06/14/2004
• Issued: 08/08/2006
• Est. Priority Date: 06/14/2004
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Johnson, Richard C.
• Primary Examiner(s): Pope, Daryl C
• Application Number:
  US10/868,294
• Publication Number:
  US 20050275531A1
• Time in Patent Office: 785 Days
• Field of Search: 340/505, 340/506, 340/524, 340/539.1, 340/539.11, 340/539.13, 340/539.32, 340/572.1, 340/10.1
• US Class Current: 340/505
• CPC Class Codes: G06K 17/00 Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
• 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: G06K 19/0716 at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
• CPC Class Codes: G06K 19/07381 with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10079 the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
• CPC Class Codes: G08B 13/2462 Asset location systems combined with EAS inventory, tracking, logistic G06Q10/00; entrance control systems G07C9/00

Abstract

A tracking system for tracking a plurality of items or boxes of items defines a plurality of levels that may be physically and logically organized in a hierarchy. Each level of the hierarchy only communicates with the next hierarchically lower level (if it exists) and/or a next hierarchically higher level (if it exists). The lowest hierarchical level includes a wireless tag coupled to each of the plurality of items. Each of the wireless tags may be configured to provide a unique identifier when queried. Remaining hierarchical levels may each include one or more uniquely identified computing devices that are configured to query the wireless tags or computing devices of the next hierarchically lower level, to store information including the unique identifier and any other information provided by the queried next hierarchically lower level and to provide the stored information to the computing device(s) of the next hierarchically higher level (if it exists). A sealed box or document may form a part of the hierarchy and may include a conductive mesh coupled to a wireless tag, repeater or computing device that is configured to report on the state of the conductive mesh.

Claims

1. A tracking system for tracking a plurality of items, comprising:

a plurality of wireless tags, each of the plurality of wireless tags being configured to couple to one of the plurality of items, to store a unique tag identifier and to provide tag information including the stored unique tag identifier when queried;

a plurality of repeaters, each having a unique repeater identifier and each being associated with selected ones of the plurality of wireless tags, each repeater being configured to issue a query to its associated wireless tags, to receive, to store and, when queried, to provide the tag information provided by the queried wireless tags and repeater information that includes its unique repeater identifier;

at least one high-level device, each having a unique high-level identifier and being configured to issue a high-level query to selected ones of the plurality of repeaters, to receive, to store and, when queried, to provide the received tag and repeater information and high-level information that includes its unique high-level identifier;

a top-level device, the top-level device being configured to issue a top-level query to the at least one high-level device and, in response to the top-level query, receive and store the provided high-level information, the provided repeater information and the provided tag information, and

a conductive mesh coupled to one of the wireless tags, to one of the repeaters or to one of the high-level devices, wherein wireless tag, repeater or high-level device coupled to the conductive mesh is configured to report on a state of the conductive mesh.

2. The tracking system of claim 1, wherein each of the plurality of wireless tags are configured to be attached to an item in such a manner that removal of the wireless tag from the item disables the wireless tag.

3. The tracking system of claim 1, wherein at least one of the plurality of wireless tags is configured for single use and are disposable.

4. The tracking system of claim 1, wherein at least one of the plurality of wireless tags is configured for recycling and reuse.

5. The tracking system of claim 1, wherein at least one of the plurality of wireless tags is configured for use in authenticity certification to prevent fraud or counterfeiting.

6. The tracking system of claim 1, wherein the wire mesh at least partially encapsulates one of the plurality of items or a container containing at least some of the plurality of items.

7. The tracking system of claim 1, wherein the wire mesh is a single conductive strand and wherein the wireless tag, repeater or high-level device is configured to report on electrical properties of the single conductive strand.

8. The tracking system of claim 1, wherein the at least one of the wireless tags, repeaters, and high-level device coupled to the conductive mesh is configured to detect whether the conductive mesh has been breached.

9. The tracking system of claim 1, wherein each of the plurality of repeaters are configured to be coupled to a box enclosing a plurality of the wireless tags and wherein each repeater is configured to query only those wireless tags enclosed within the box to which the repeater is coupled.

10. The tracking system of claim 1, wherein each of the repeaters is configured to draw power from a battery and when the battery is exhausted, to passively respond to queries from the at least one high-level device.

11. The tracking system of claim 1, wherein the battery is configured to be inductively recharged.

12. The tracking system of claim 1, further comprising a database coupled to the top-level device and wherein the top-level device is configured to store the provided high-level information, the repeater information and the tag information in the database.

13. The tracking system of claim 1, wherein the at least one high-level device includes a GPS device and is configured to include GPS-derived geographical or positional information in the high-level information.

14. The tracking system of claim 13, further including a Local Positioning System (LPS) that is configured to track the plurality of items within a predetermined geographical area, the Local Positioning System being coupled to the Global Positioning System.

15. The tracking system of claim 1, wherein each of the plurality of repeaters is configured to provide the tag information and the repeater information to the at least one high-level device without being queried.

16. The tracking system of claim 1, wherein each of the high-level devices is configured to provide the tag information, the repeater information and the high-level information to the top-level device without being queried.

17. The tracking system of claim 1, wherein each of the plurality of wireless tags includes an RFID.

18. The tracking system of claim 1, wherein the system forms a hierarchical structure in which wireless tags only report to repeaters, repeaters only report to high-level devices, and high-level devices only report to the top-level device.

19. The tracking system of claim 1, wherein at least one of the provided high-level information, the repeater information and the tag information includes a time stamp.

20. The tracking system of claim 1, further including an enclosure that contains at least one of the plurality of items and wherein at least one of the wireless tags, repeaters, and high-level device is configured to detect whether the enclosure has been opened.

21. The tracking system of claim 12, wherein the at least one of the wireless tags, repeaters, and high-level device is configured to accept provided authentication and/or verification information and to communicate the provided authentication and/or verification information to the database coupled to the hierarchy.

22. The tracking system of claim 21, wherein the database coupled at least one of the wireless tags, repeaters, and high level device is configured to generate a log entry for storage in the database whenever the conductive mesh is breached or whenever a box containing one or more of the plurality of items is opened, the generated log entry including at least the provided authentication and/or verification information.

23. The tracking systems of claim 22, wherein at least one of the wireless tags, repeaters and high level device is configured to generate an alarm when the conductive mesh is breached or the box is opened by an individual whose provided authentication and/or authorization information is not recognized by the database.

24. A computer-implemented method of updating tracking information for a plurality of items that are logically organized within a hierarchy, comprising the steps of:

issuing a top-level query from a top-level device to at least one of a plurality of high-level devices, the plurality of high-level devices being hierarchically lower than the top-level device;

responsive to the top-level query, issuing a high-level query from each of the queried high-level devices to at least one of a plurality of repeaters, the plurality of repeaters being hierarchically lower than the plurality of high-level devices;

responsive to the issued high-level queries, issuing a repeater query from each of the at least one of the plurality of repeaters to at least one of a plurality of wireless tags, each of the plurality of wireless tags storing tag information that includes a unique tag identifier and being attached to one of the plurality of items, the plurality of wireless tags being hierarchically lower than the plurality of repeaters, and responsive to the issued repeater queries, propagating the unique tag identifier of each queried wireless tag back up through the hierarchy to update the tracking information.

25. The computer-implemented method of claim 24, wherein the propagating step includes steps of sending the tag information from the queried wireless tag to the querying repeater, and from the querying repeater to the querying high-level device and from the querying high-level device to the top-level device.

26. The computer-implemented method of claim 24, wherein upon failure of a wireless tag to respond to a repeater query, the method further includes a step of generating an alarm and updating the tracking information to note that the item to which the wireless tag that failed to respond is attached is missing or damaged or subject to unauthorized removal, theft, or mishandling.

27. The computer-implemented method of claim 24, further comprising a step of storing the updated tracking information in a database coupled to the top-level device.

28. The computer-implemented method of claim 24, wherein the at least one repeater has a unique repeater identifier and wherein the propagating step includes the querying repeater propagating its unique repeater identifier along with the unique tag identifier of each queried wireless tag back through the hierarchy to the top-level device and updating the tracking information with the propagated unique repeater identifier.

29. The computer-implemented method of claim 24, wherein the at least one high-level device has a unique high-level device identifier and wherein the propagating step includes the querying high-level device propagating its unique high-level device identifier along with the unique tag identifier of each queried wireless tag to the top-level device and updating the tracking information with the propagated unique high-level device identifier.

30. The computer-implemented method of claim 24, wherein the propagating step includes propagating at least one time stamp along with the unique tag identifier of each queried wireless tag back up through the hierarchy to the top-level device and updating the tracking information with the propagated time stamp.

31. The computer-implemented method of claim 24, wherein the at least one high-level device has a GPS and/or a Local Positioning System (LPS) receiver to fix its current geographical location and wherein the propagating step includes the querying high-level device propagating an indication of its current geographical location along with the unique tag identifier of each queried wireless tag to the top-level device.

32. The computer-implemented method of claim 24, wherein the hierarchy includes an organizational structure.

33. The computer-implemented method of claim 24, wherein the hierarchy includes a geographically delineated area.

34. A tracking system for tracking a plurality of items, the system comprising a plurality of levels logically organized in a hierarchy where each level of the hierarchy only communicates with at least one of an existing next hierarchically lower level and an existing next hierarchically higher level, a lowest hierarchical level comprising a separate wireless tag coupled to each of the plurality of items, the wireless tag being configured to provide a unique identifier when queried and remaining hierarchical levels each comprising at least one uniquely identified computing device configured to query the wireless tags or computing devices of the existing next hierarchically lower level, to store information including the unique identifier and any other information provided by the queried next hierarchically lower level and to provide the stored information to the at least one computing device of the existing next hierarchically higher level.

35. The tracking system of claim 34, further comprising a database coupled to at least one of the computing devices.

36. The tracking system of claim 34, wherein the at least one computing device includes a PC.

37. The tracking system of claim 34, wherein the computing devices are configured to communicate wirelessly with the existing next hierarchically lower level and the next hierarchically higher level.

38. The tracking system of claim 34, wherein each wireless tag is configured to be attached to one of the plurality of items in such a manner that removal of the wireless tag from the item disables the wireless tag.

39. The tracking system of claim 34, wherein each wireless tag is configured for single use and is disposable.

40. The tracking system of claim 34, wherein at least one of the computing devices is configured to draw power from a battery and when the battery is exhausted, to passively respond to queries from the computing device of the existing next hierarchically higher level.

41. The tracking system of claim 34, wherein at least one of the computing device includes a GPS device and is configured to include GPS-derived geographical information in the computing information.

42. The tracking system of claim 34, wherein the at least one computing device is configured to provide information to the at least one computing device of the existing hierarchically higher level device without being queried.

43. The tracking system of claim 34, wherein the information provided to the at least one computing device includes a time stamp.