RFID encoding for identifying system interconnect cables

• US 7,940,182 B2
• Filed: 04/30/2008
• Issued: 05/10/2011
• Est. Priority Date: 04/30/2008
• Status: Active Grant

• Current Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Nelson, Scott William, Lange, Andrew Snowden
• Primary Examiner(s): Bugg, George A
• Assistant Examiner(s): WANG, JACK K
• Application Number:
  US12/112,939
• Publication Number:
  US 20090272794A1
• Time in Patent Office: 1,105 Days
• Field of Search: 340/572.1, 235/375
• US Class Current: 340/572.1
• CPC Class Codes: H01B 13/344 by applying sleeves, ferrules, tags, clips, labels or short length strips

Abstract

The invention is directed to encoding information in radio frequency identifier (RFID) tags disposed on cabling interconnects for the purpose of easier identification of the cables, especially when ascertaining the physical routing and connectivity of the cables. The encoding can be performed before, during, or after installation of the cable. The encoded information can then be read at any time using an RFID reader, for example to identify the cable at various positions along it, thereby enabling easy determination of the routing of the cable.

Claims

1. A radio frequency identifier (RFID) encoder for encoding information on RFID tags disposed on a cable, the RFID encoder comprising:

an RFID interface for interfacing with the RFID tags;

a controller operable to control the RFID interface to accomplish encoding of the information on the RFID tags; and

a guide for positioning the cable in a correct position for encoding a selected RFID tag of the RFID tags, wherein the guide further comprises at least one cable guide that permits the RFID encoder to move along a longitudinal axis of the cable, so that the RFID encoder is capable of encoding the RFID tags.

2. The RFID encoder of claim 1, wherein the guide further comprises two cable guides situated on the RFID encoder such that the two cable guides align with the longitudinal axis of the cable when the cable is positioned in both of the cable guides.

3. The RFID encoder of claim 1, wherein the at least one cable guide includes a pair of prongs between which the cable can be positioned.

4. The RFID encoder of claim 2, wherein the two cable guides are adjustable to accept various sizes of cables.

5. The RFID encoder of claim 1, wherein the guide further comprises:

a proximity detector for determining whether or not the selected RFID tag is within a range of positions for successful encoding of the selected RFID tag.

6. The RFID encoder of claim 1, further comprising:

a communications interface for wirelessly receiving at least a part of the information.

7. The RFID encoder of claim 1, further comprising:

a global positioning receiver for receiving a GPS signal, from which the RFID encoder is operable to determine its global position and encode an indication of this global position on the selected RFID tag.

8. The RFID encoder of claim 1, further comprising:

a user interface operable to receive input from a user, the input providing an indication of at least part of the information to be encoded on the selected RFID tag.

9. The RFID encoder of claim 1, wherein the RFID encoder is portable and has a physical structure adapted for handheld operation by a user.

10. A method of encoding RFID tags disposed on a cable, the method comprising:

positioning, with a guide, the cable in a first position with respect to an RFID encoder for encoding a first RFID tag of the RFID tags, wherein the guide further comprises at least one cable guide that permits the RFID encoder to move along a longitudinal axis of the cable, so that the RFID encoder is capable of encoding the RFID tags; and

encoding a cable identifier into the first RFID tag.

11. The method of claim 10, wherein the step of positioning comprises using a guide to align the cable in the first position.

12. The method of claim 10, wherein the step of positioning further comprises:

determining whether the first RFID tag is within a range of positions for successful encoding of the first RFID tag, and,

if not in the range, repositioning the cable to put the first RFID tag in the range.

13. The method of claim 12, wherein the step of determining further comprises:

using a proximity detector to make the determination.

14. The method of claim 10, further comprising:

encoding a first tag identifier into the first RFID tag, the first tag identifier being at least unique to the cable.

15. The method of claim 14, wherein the first tag identifier represents a distance of the first RFID tag from one end of the cable.

16. The method of claim 14, further comprising:

encoding a first location identifier representing a location of the RFID tag when the cable is installed for operation.

17. The method of claim 16, further comprising:

receiving at the RFID encoder any of the cable identifier, the first tag identifier, and the first location identifier from a management entity.

18. The method of claim 10, further comprising:

repositioning the cable in a second position with respect to the RFID encoder for encoding a second RFID tag of the RFID tags; and

encoding any of the cable identifier, a second tag identifier, and a second location identifier into the second RFID tag.

19. A cable system comprising:

a plurality of RFID tags disposed at approximately equal intervals along a longitudinal axis of a cable; and

a guide for positioning the cable in a correct position for encoding a selected RFID tag of the RFID tags, wherein the guide further comprises at least one cable guide that permits the RFID encoder to move along a longitudinal axis of the cable, so that the RFID encoder is capable of encoding the RFID tags.

20. The cable system of claim 19, wherein the RFID tags are encoded with information that includes a cable identifier.

21. The cable system of claim 20, wherein the information includes a tag identifier.

22. The cable system of claim 21, wherein the tag identifier is any of:

a sequence number that is local to the cable or a distance of the RFID tag with respect to one end of the cable.

23. The cable system of claim 22, wherein the information further includes a location identifier representing a location of the RFID tag when the cable is installed for operation.

24. The cable system of claim 23, wherein the location identifier represents any of:

a global position of the RFID tag or positional information of the RFID tag with respect to premises at which the cable is installed.

25. The cable system of claim 24, wherein the information further includes any of:

a network identifier, a customer identifier, and a network operator identifier.

26. A cable bundle system comprising:

a plurality of cables held in close proximity to each other along their longitudinal axes by sheathing;

a plurality of RFID tags disposed at approximately equal intervals along the sheathing; and

a guide for positioning the cable bundle in a correct position for encoding a selected RFID tag of the plurality of RFID tags, wherein the guide further comprises at least one cable guide that permits the RFID encoder to move along a longitudinal axis of the cable, so that the RFID encoder is capable of encoding the RFID tags.

27. The cable bundle system of claim 26, wherein the RFID tags are encoded with information that includes a cable identifier.

28. The cable bundle system of claim 27, wherein the information includes a tag identifier.

29. The cable bundle system of claim 28, wherein the tag identifier is any of a sequence number that is local to the cable bundle or a distance of the RFID tag with respect to one end of the cable bundle.

30. The cable bundle system of claim 29, wherein the information further includes a location identifier representing a location of the RFID tag when the cable bundle is installed for operation.

31. The cable bundle system of claim 30, wherein the location identifier represents any of a global position of the RFID tag or positional information of the RFID tag with respect to premises at which the cable bundle is installed.

32. The cable bundle system of claim 31, wherein the information further includes any of a network identifier, a customer identifier, and a network operator identifier.