Method and apparatus for real-time tracking of inventory using active RFID technology

• US 7,252,230 B1
• Filed: 05/09/2005
• Issued: 08/07/2007
• Est. Priority Date: 05/09/2005
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Evans, Dave, Sheikh, Waseem Aman, Suckow, Brian P.
• Primary Examiner(s): LEE, SEUNG H
• Application Number:
  US11/125,489
• Time in Patent Office: 820 Days
• Field of Search: 235/484, 235/384, 235/439, 235/383, 235/440
• US Class Current: 235/439
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders

Abstract

Systems and method for dynamically tracking assets located in different geographic zones are disclosed. Disclosed embodiments include a central zone hosting an inventory system. The inventory system is in network communication with remote zones that include sensors for interrogating tagged assets located in the zones. The inventory system is configured to poll the remote zones to obtain information regarding the tagged assets and store the information in a database. The inventory system may then determine whether any of the received information deviates from an expected result, and take appropriate action in response to the deviation.

Claims

1. A system for dynamically tracking assets located in a plurality of disparate geographic zones comprising:

a central zone comprising an inventory system;

at least one remote zone in network communication with the inventory system;

each of the at least one remote zone including at least one reader for interrogating tagged assets located within range of the at least one reader;

each of said tagged assets comprising its own active Radio Frequency Identification (RFID) tag having at least one additional onboard sensor for measuring environmental conditions; and

the inventory system being configured to;

automatically poll the at least one remote zone to obtain information regarding tagged assets located in the at least one remote zone;

automatically store the information in a database; and

automatically determine whether any of the received information deviates from an expected result.

2. The system of claim 1, wherein said inventory system is further configured to determine whether measured environmental conditions deviate from a predefined threshold.

3. The system of claim 1, wherein at least one of said remote zones comprises a zone for scanning tagged assets enclosed in the trunk of a vehicle.

4. The system of claim 3, wherein said vehicle further comprises a sensor for interrogating tagged assets contained in the vehicle, and mobile communication equipment for communication the results of the interrogation to the inventory system.

5. The system of claim 1, wherein said inventory system is further configured to establish a secure means of communication to said at least one remote zone prior to polling said at least one remote zone.

6. An apparatus for dynamically tracking assets located in a plurality of disparate geographic zones comprising:

a central zone comprising inventory system means;

at least one remote zone means in network communication with the inventory system means;

each of the at least one remote zone including at least one reader means for interrogating tagged assets located within range of the at least one sensor;

each of said tagged assets comprising its own active Radio Frequency Identification (RFID) tag having at least one additional onboard sensor for measuring environmental conditions; and

the inventory system means comprising;

means for automatically polling the at least one remote zone means to obtain information regarding tagged assets located in the at least one remote zone;

means for automatically storing the information in a database; and

means for automatically determining whether any of the received information deviates from an expected result.

7. The apparatus of claim 6, wherein said inventory system means further comprises means for determining whether measured environmental conditions deviate from a predefined threshold.

8. The apparatus of claim 6, wherein at least one of said remote zones comprises a residential zone including means for scanning tagged assets enclosed in the trunk of a vehicle.

9. The apparatus of claim 8, wherein said vehicle further comprises sensor means for interrogating tagged assets contained in the vehicle, and mobile communication equipment means for communication the results of the interrogation to the inventory system means.

10. The apparatus of claim 6, wherein said inventory system is further comprises means for establishing a secure means of communication to said at least one remote zone prior to polling said at least one remote zone.

11. A method for dynamically tracking assets located in a plurality of disparate geographic zones comprising:

providing a central zone inventory system and at least one remote zone in network communication with the inventory system;

providing at least one reader in each of the at least one remote zones for interrogating tagged assets located within range of the at least one reader, wherein each of said tagged assets comprises its own active Radio Frequency Identification (RFID) tag having at least one additional onboard sensor for measuring environmental conditions;

automatically polling, by said inventory system, the at least one remote zone to obtain information regarding tagged assets located in the at least one remote zone;

automatically storing the information in a database; and

automatically determining whether any of the received information deviates from an expected result.

12. The method of claim 11, further comprising the act of determining whether measured environmental conditions deviate from a predefined threshold.

13. The method of claim 11, wherein at least one of said remote zones comprises a zone for scanning tagged assets enclosed in the trunk of a vehicle.

14. The method of claim 13, wherein said vehicle further comprises a sensor for interrogating tagged assets contained in the vehicle, and mobile communication equipment for communication the results of the interrogation to the inventory system.

15. The method of claim 11, further comprising the act of establishing a secure means of communication to said at least one remote zone prior to polling said at least one remote zone.