Active-tag based dispensing

• US 7,864,041 B2
• Filed: 11/28/2007
• Issued: 01/04/2011
• Est. Priority Date: 11/28/2007
• Status: Active Grant

• Current Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Original Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Inventors: Godlewski, Peter Phillip
• Primary Examiner(s): La; Anh V
• Application Number:
  US11/946,698
• Publication Number:
  US 20090134997A1
• Time in Patent Office: 1,133 Days
• Field of Search: 340/539.1, 3405721-5729, 705/28, 705/22, 705/23, 705/24, 705/225
• US Class Current: 340/539.1
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G06Q 20/203 Inventory monitoring
• CPC Class Codes: G16H 20/13 delivered from dispensers

Abstract

A method of sensing dispensation of a product from a storage device having an antenna is provided. The method comprises providing a product with a wireless tag within a service area of the antenna, establishing wireless communication between the wireless tag and the antenna, monitoring the wireless communication, and determining, responsive to the monitoring, when the wireless communication has ceased to establish when the product has been dispensed from the storage device. A dispensation-sensing system is also provided. The system comprises a securable storage area, an antenna operable to receive and transmit signals within the securable storage area, and a processor. The processor is configured to establish wireless communication between the antenna and a wireless tag of a product disposed within the securable storage area, monitor the wireless communication, and determine, responsive to the monitoring, when the wireless communication has ceased to establish when the product has been dispensed from the securable storage area.

Claims

1. A method of sensing dispensation of a product from a storage device having an antenna, the method comprising the steps of:

providing a first product with a first wireless tag within a service area of the antenna;

establishing wireless communication between the first wireless tag and the antenna, comprising;

establishing a first wireless link between the first wireless tag of the first product and a second wireless tag of a second product; and

establishing a second wireless link between the second wireless tag and the antenna;

monitoring the wireless communication; and

determining, responsive to the monitoring, when the wireless communication has ceased to establish when the first product has been dispensed from the storage device,

wherein each of the first wireless tag and the second wireless tag is at least one of a radio frequency identification (RFID) tag, Bluetooth tag, or near field communication (NFC) tag.

2. The method of claim 1, wherein the step of establishing wireless communication includes:

establishing a wireless link between the first wireless tag and the antenna.

3. The method of claim 1, wherein the step of monitoring the wireless communication includes monitoring the first wireless link.

4. The method of claim 1, wherein the step of establishing wireless communication includes:

establishing a network of wireless links between a plurality of wireless tags;

establishing a first wireless link between the first wireless tag of the first product and a first one of the plurality of wireless tags; and

establishing a second wireless link between a second one of the plurality of wireless tags and the antenna.

5. The method of claim 4, wherein the step of monitoring the wireless communication includes monitoring the first wireless link.

6. The method of claim 4, wherein the network of wireless links utilize a first frequency, and wherein the second wireless link utilizes a second frequency.

7. The method of claim 4, wherein the network of wireless links utilize a first power level, and wherein the second wireless link utilizes a second power level higher than the first power level.

8. The method of claim 1, wherein the service area is located within the storage device.

9. The method of claim 1, wherein the first wireless tag is an active RFID tag.

10. The method of claim 1, wherein the first wireless tag includes a memory configured to store environmental information associated with the first product.

11. The method of claim 10, wherein the first wireless tag is operably coupled to one or more environmental sensors on the first product, and wherein the one or more environmental sensors provide the environmental information to the first wireless tag.

12. The method of claim 10, wherein the first wireless tag is configured to communicate the environmental information associated with the first product to the antenna.

13. The method of claim 12, wherein the storage device is operably coupled with a database, and wherein the environmental information associated with the first product is provided by the storage device to the database.

14. The method of claim 10, wherein the environmental information includes one or more of:

a dispensation history of the first product, a temperature history of the first product, and a connectivity history of the first product to the first wireless tag.

15. The method of claim 1, further comprising the steps of:

authenticating a user;

permitting the user access to the storage device; and

associating the user with the first product after the first product has been dispensed from the storage device.

16. The method of claim 15, wherein the storage device is operably coupled with a database, and wherein information about the user and the associated first product is provided by the storage device to the database.

17. A method of sensing dispensation of a product from a storage device having an antenna, the method comprising the steps of:

providing a plurality of products within a service area of the antenna, each of the plurality of products including a wireless tag;

establishing a first wireless link between the antenna and at least one of the plurality of wireless tags;

establishing a plurality of second wireless links between the plurality of wireless tags, the plurality of second wireless links being coupled to the first wireless link;

monitoring the first wireless link and the plurality of second wireless links; and

determining, responsive to the monitoring, when one of the plurality of second wireless links has been lost to establish when a corresponding one of the plurality of products has been dispensed from the storage device,

wherein the plurality of wireless tags comprise radio frequency identification (RFID) tags, Bluetooth tags, or near field communication (NFC) tags.

18. A dispensation-sensing system, comprising:

a securable storage area;

an antenna operable to receive and transmit signals within the securable storage area; and

a processor configured to;

establish wireless communication between the antenna and a first wireless tag of a first product disposed within the securable storage area, comprising;

establish a first wireless link between the first wireless tag of the first product and a second wireless tag of a second product; and

establish a second wireless link between the second wireless tag and the antenna;

monitor the wireless communication, and

determine, responsive to the monitoring, when the wireless communication has ceased to establish when the first product has been dispensed from the securable storage area,

wherein the first wireless tag and the second wireless tag are at least one of a radio frequency identification (RFID) tag, Bluetooth tag, or near field communication (NFC) tag.

19. The dispensation-sensing system of claim 18, wherein the processor is further configured to collect environmental information about the first product from the first wireless tag.

20. The dispensation-sensing system of claim 19, further comprising a database operably coupled to the processor, wherein the processor is configured to provide the environmental information about the first product to the database.

21. The dispensation-sensing system of claim 18, wherein the processor is further configured to:

authenticate a user;

permit the user access to the storage device; and

associate the user with the first product after the first product has been dispensed from the storage device.

22. The dispensation-sensing system of claim 21, further comprising a database operably coupled to the processor, wherein the processor is configured to provide the information about the user and the associated first product to the database.

23. The dispensation-sensing system of claim 18, wherein the processor is configured to monitor the wireless communication by monitoring the first wireless link.

24. The dispensation-sensing system of claim 18, wherein the processor is configured to establish wireless communication by establishing a network of wireless links between a plurality of wireless tags, establishing a first wireless link between the first wireless tag of the first product and a first one of the plurality of wireless tags, and establishing a second wireless link between a second one of the plurality of wireless tags and the antenna.

25. The dispensation-sensing system of claim 24, wherein the processor is configured to monitor the wireless communication by monitoring the first wireless link.

26. The dispensation-sensing system of claim 24, wherein the processor is further configured to monitor a topology of the network of wireless links to detect user activity.