US20050224585A1 - Radio frequency identification of a connector by a patch panel or other similar structure - Google Patents

Abstract

The device includes a connector, a transponder, a panel, an antenna, and a transceiver. The transponder is attached to the connector. The antenna is positioned adjacent to the panel. The transceiver is electrically connected to the antenna. When the transponder is placed close enough to the antenna, the transceiver is able to activate the transponder thus enabling the transponder to read the information deposited with the transponder.

Description

BACKGROUND OF THE INVENTION
• 1. Field of the Invention
• The present invention pertains to radio frequency identification devices. The invention more particularly concerns the radio frequency identification of a connector by a patch panel.
• 2. Discussion of the Background
• Radio frequency identification devices (RFID) are known in the art. Typically, radio frequency identification systems incorporate an antenna or coil, a transceiver (with decoder), and a transponder (RF tag). Often times the antenna and the transceiver are packaged together so as to form a reader or interrogator. The transponder includes a transponder antenna and an integrated circuit chip attached to the transponder antenna. The antenna or coil emits a radio wave which induces an electrical current in the antenna of the transponder. The electrical current then activates the integrated circuit chip of the transponder. The integrated circuit chip can then transmit information through the antenna of the transponder via radio waves back to the antenna or coil. Information can be stored on the integrated circuit as either read only memory or read/write memory.
• Radio frequency identification devices can be either active or passive. An active system includes a transponder which contains its own power source. In contrast, in a passive system the transponder obtains the energy from the radio waves emanating from the antenna or coil so as to enable the transponder to operate and transmit information. A transponder operating in accordance with the active system is able to transmit information to the antenna or coil over a greater distance than is a transponder operating in accordance. with the passive system. However, the transponder operating in accordance with the active system is larger than the transponder operating in accordance with the passive system. Furthermore, typically transponders operating in accordance with the passive system contain integrated circuit chips that have read only memory. Examples of radio frequency identification components are presented in U.S. Pat. Nos. 5,206,626; 5,448,110; 6,118,379; 6,147,655; 6,424,263; 6,429,831; 6,445,297; 6,451,154; and 6,677,917. U.S. Pat. Nos. 5,206,626; 5,448,110; 6,118,379; 6,147,655; 6,424,263; 6,429,831; 6,445,297; 6,451,154; and 6,677,917 are hereby incorporated herein by reference.
• Connectors and panels or patch panels are also known in the art. Known connectors include fiber optic connectors and electrically conductive connectors. An electrically conductive connector can be attached to electrically conductive cable such as copper based cable, or the electrical conductive connector can be integrated into a device such as an optoelectronic device. U.S. Pat. No. 6,350,063 discloses electrical connectors and cables, and an optoelectronic device. U.S. Pat. No. 6,350,063 is hereby incorporated herein by reference.FIG. 1 is a perspective view of anelectrical connector120 attached to an electricallyconductive cable122. Also shown is acomplementary receptacle130 into which theelectrical connector120 mates.FIG. 2 is a perspective view of another version of anelectrical connector140. Theconnector140 is shown from a first perspective and a second perspective.FIG. 2 also discloses another version of acomplementary receptacle150.FIG. 3 is a perspective view of anoptoelectronic device160 which includes a fiberoptic connector170 and anelectrical connector180. The background material provided below concentrates on fiber optic connectors.
• The front panel of a host device has many receptacles. Each receptacle accepts at least an individual fiber optic cable. The other end of the fiber optic cable connects to another device. The fiber optic cable can have a length of a few meters or of a few kilometers. A host device can accommodate a few hundred fiber optic cables. U.S. Pat. Nos. 5,233,674, and 5,481,634 disclose a fiber optic cable having a fiber optic connector. U.S. Pat. Nos. 5,233,674, and 5,481,634 are hereby incorporated herein by reference.FIG. 4 is a perspective view of a fiberoptic cable30 having a fiberoptic connector10. Attached to the fiberoptic connector10 is astrain relief boot20. Formed as part of the optic connector is arelease lever40.FIG. 5 is a perspective view of the fiberoptic cable30 ofFIG. 4 taken from another angle where aferrule50 is exposed. The fiberoptic connector10 conforms to the LC style of fiber optic connectors.
• Experience has shown that a fiber optic cable can be inadvertently detached from the host device, or that the optical fiber within the fiber optic cable breaks and the fiber optic cable no longer transmits light energy to the host device. In such instances, a worker must go and look at the panel of the host device and determine which cable is no longer transmitting light signals to the host device either because the optical fiber is broken or the fiber optic cable is detached from the host device. When two or more fiber optic cables are malfunctioning, the worker's job becomes very burdensome and time consuming since there are hundreds of fiber optic cables to examine. Furthermore, a device or person is not receiving information conveyed by the malfunctioning fiber optic cable. Thus, organization of the cables, including the fiber optic cables and the copper based cables, in the vicinity of the panel is of great interest to the operators of the host devices.
SUMMARY OF THE INVENTION
• It is an object of the invention to provide a device which facilitates the identification of a specific connector or cable relative to a specific location on a panel.
• In one form of the invention the device includes a cable, a transponder, a panel, an antenna, and a transceiver. The transponder is attached to the cable. The antenna is positioned adjacent to the panel. The transceiver is electrically connected to the antenna. In operation, when the transponder is placed close enough to the antenna, the transceiver is able to activate the transponder thus enabling the transponder to read the information deposited with the transponder. The cable can be a fiber optic cable or cable based on an electrically conductive material such as copper.
• In another form of the invention, the device includes a cable, a transponder, a substrate, an antenna, and a transceiver. The transponder is attached to the cable. The antenna is attached to the substrate. The substrate is adapted for attachment to a panel of a host device. The transceiver is electrically connected to the antenna so as to form a reader or interrogator. The cable can be a fiber optic cable or cable based on an electrically conductive material such as copper.
• In still yet another form of the invention, the device includes a cable, a transponder, a substrate, an antenna, and a transceiver. The cable includes a connector. The transponder is attached to the connector. The antenna is attached to the substrate. The substrate is adapted for attachment to a panel of a host device. The transceiver is electrically connected to the antenna so as to form a reader or interrogator which is capable of activating and interrogating the transponder when the transponder is sufficiently close to the antenna. The cable can be a fiber optic cable or a cable based on an electrically conductive material such as copper. Likewise, the connector is a fiber optic connector when a fiber optic cable is used, and the connector is an electrically conductive connector when an electrically conductive cable is used.
• In yet still another form of the invention the device includes an optoelectronic device, a transponder, a panel, an antenna, and a transceiver. The optoelectronic device includes a connector which conveys energy along electrically conductive materials housed within the connector. The transponder is attached to the optoelectronic device. The antenna is positioned adjacent to the panel. The transceiver is electrically connected to the antenna. In operation, when the transponder is placed close enough to the antenna, the transceiver is able to activate the transponder thus enabling the transponder to read the information deposited with the transponder.
• Thus, the invention achieves the objectives set forth above. The invention provides a device which is able to determine the association between a specific location on a panel and a specific connector or cable whether it be fiber optic or electrically conductive.
BRIEF DESCRIPTION OF THE DRAWINGS
• A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
• FIG. 1 is a perspective view of a copper based electrical connector and a complementary receptacle, the electrical connector is attached to a copper based electrical cable;
• FIG. 2 is a perspective view of another version of the electrical connector and complementary receptacle ofFIG. 1;
• FIG. 3 is a perspective view of an optoelectronic transceiver which has an optical connector end and an electrical connector end;
• FIG. 4 is a perspective view of a known fiber optic cable and connector assembly;
• FIG. 5 is a perspective view of the fiber optic cable and connector assembly ofFIG. 4 taken from another angle;
• FIG. 6 is a perspective view of the combination of the fiber optic cable and the transponder;
• FIG. 7 is a perspective view of the combination of the fiber optic cable and the transponder ofFIG. 6 taken from another angle;
• FIG. 8 is a front view of a panel of a patch panel or of a host device;
• FIG. 9 is a side view of the panel ofFIG. 8;
• FIG. 10 is a partial front view of a substrate having apertures and coils or antennas;
• FIG. 11 is a partial side view of the combination of the fiber optic cable having the transponder ofFIGS. 6 and 7 connected to the panel ofFIGS. 8 and 9 of a host device where the panel includes the substrate ofFIG. 10;
• FIG. 12 is an electrical schematic of the electromagnetic interaction between the transponder and the reader or interrogator;
• FIG. 13 is a perspective view of the combination of the electrically conductive, copper based cable ofFIG. 1 and the transponder;
• FIG. 14 is a perspective view of the combination of the electrically conductive, copper based cable ofFIG. 2 and the transponder; and
• FIG. 15 is a perspective view of the combination of the optoelectronic device ofFIG. 3 and the transponder.
DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENT
• Referring now to the drawings, wherein like reference numerals designate identical or corresponding parts throughout the several views, and more particularly toFIGS. 6-15 thereof, embodiments of the present invention are displayed therein.
• FIG. 6 is a perspective view of afiber optic cable30 having afiber optic connector10. Thefiber optic connector10 includes arelease lever40. Attached to thefiber optic connector10 is astrain relief boot20. Also attached to, or mounted on or in, thefiber optic connector10 is atransponder70. Thetransponder70 can be affixed to thefiber optic connector10 with an adhesive material or a clip (not shown). The clip physically squeezes or clamps thetransponder70 to thefiber optic connector10. Alternatively, thetransponder70 can be insert molded into the body of thefiber optic connector10. Furthermore, thetransponder70 can be attached to fiber optic connectors which are already in-service.
• FIG. 7 is a perspective view of afiber optic cable30 ofFIG. 6 taken from another angle. The view of thefiber optic cable30 ofFIG. 7 exposes theferrule50. Thefiber optic connector10 generally conforms to the LC standard, however, the fiber optic connector can also be constructed to conform to any other standard such as SC, and ST. Theferrule50 is a single fiber ferrule, however multi-fiber ferrules and connectors can also be employed. Additionally, the fiber optic connector can be of its own unique design. Furthermore, the optical fiber terminated at theferrule50 can be any one of a single mode fiber, a multimode fiber, a polarization maintaining fiber, or any other type of optical fiber.
• FIG. 8 is a front view of apanel80. Thepanel80 can belong to a patch panel device, a host device, or some other similar structure. Thepanel80 has a front surface orface84. Thepanel80 includesmany apertures82,83,87,88, and89.FIG. 9 is a side view of thepanel80 which exposes therear edge86. By way of example, theaperture82 allows thefiber optic connector10 to pass beyond thefront surface84 of thepanel80 so as to gain access to the host device. Therelease latch40 of the fiberoptical connector10 is used to secure thefiber optic connector10 to the host device. Upon depressing therelease lever40 thefiber optic connector10 can be removed from the hot device.
• FIG. 10 is a partial front view of asubstrate90 havingapertures92,94,96,98, and coils orantennas93,95,97,99. Each coil orantenna93,95,97,99 surrounds arespective aperture92,94,96,98. The coils orantennas93,95,97,99 are made of a suitable electrically conductive material such as copper. The coils orantennas93,95,97,99 are adhered or attached to a substrate or are sandwiched between two substrates. Typically, the coils orantennas93,95,97,99 are attached to the substrate with an adhesive material. The substrates are typically made of non-conductive or insulative materials such as mylar or other suitable polymer materials. Any number of apertures may be used. However, in this application the number ofapertures92,94,96,98 of thesubstrate90 should be of approximately the same size and have the same orientation and spacing as theapertures87,88,89,83 of thepanel80. U.S. Pat. No. 4,972,050 discloses a method of constructing a substrate, where the substrate includes conductive paths such as coils or antennas. U.S. Pat. No. 4,972,050 is hereby incorporated herein by reference. The antennas can be affixed originally to thepanel80, or in an alternative, as explained above, the antennas are part of thesubstrate90 which can be mounted to apanel80 of a host device which is already in-service.
• FIG. 11 is a partial side view of thesubstrate90 being located adjacent to thefront surface84 of thepanel80 of thehost device110 where thefiber optic connector10 is plugged into thehost device110. During assembly, thesubstrate90 can be placed adjacent to thefront surface84 of thepanel80 by an adhesive material or clips or other methods of attachment well known in the art.
• In practice, for example, afiber optic connector10 is inserted into and throughaperture92 of thesubstrate90 and throughaperture87 of thepanel80 so as to engage thefiber optic connector10 with thehost device110. Once installed, the antenna orcoil93 encircles a portion of thefiber optic connector10 in the plane of thesubstrate90. Thetransponder70 is close enough to the antenna orcoil93 so that the radio waves, orelectromagnetic power104, emanating from antenna orcoil93 induce an electrical current in the transponder antenna72 (seeFIG. 12) of thetransponder70. The energy and frequency of the electrical signal running though the antenna orcoil93 is provided by a transceiver102 (seeFIG. 12) which is electrically connected to antennas or coils93,95,97, and99. The combination of an antenna and a transceiver is known as a reader or interrogator.
• FIG. 12 is an electrical schematic of the electromagnetic interaction between thetransponder70 and the reader or interrogator (93,102). Once thetransponder70 is energized by the power from thetransceiver102, the transponder sends information, which was previously stored on its integrated circuit chip, to thetransceiver102 via radio waves. The radio waves leave thetransponder antenna72 and are received by the antenna orcoil92. The induced electrical signal is then carried to thetransceiver102 for storage or manipulation of the data supplied by thetransponder70.
• Examples of information which can be stored in thetransponder70 include the following information: the length of the fiber optic cable to which the transponder is attached; the date of purchase of the fiber optic cable to which the transponder is attached; the type or style of fiber optic connector to which the transponder is attached; the type of warranty associated with the fiber optic cable to which the transponder is attached; the type, style, or grade of optic fiber housed within the fiber optic cable to which the transponder; and/or a unique identification number or serialization number or code which uniquely identifies a specific fiber optic cable.
• Thus, if the fiber optic cable goes dark because the optical fiber housed within the fiber optic cable is broken, then thehost device110, through thetransceiver102, can pinpoint the location of the malfunctioning fiber optic cable. The malfunctioning fiber optic cable can then be repaired or replaced. Additionally, the device provides a system operator with the ability to monitor the number and location of the fiber optic connectors attached to the host device.
• A second embodiment of the invention is disclosed inFIGS. 13 and 14.FIG. 13 is a perspective view of anelectrical connector120 to which is attached atransponder70. Theelectrical connector120 mates with areceptacle130 which is mounted behind a panel (not shown). The panel and, if necessary, the associated substrate are constructed and operate as discussed above in regard to the first embodiment of the invention. Thus, when theelectrical connector120 which is associated with theelectrical cable122 is plugged into the host device, the antenna or coil associated with the host device will receive information from thetransponder70 mounted to theelectrical connector120. Thetransponder70 can be attached to theelectrical connector120 by way of an adhesive material, a clip, or thetransponder70 can be insert molded into the body of theelectrical connector120. Thetransponder70 can be attached to electrical connectors out in the field.
• FIG. 14 is a perspective view of another version of the electric connector shown inFIG. 13.FIG. 14 provides two perspective views ofelectric connector140 to which is attachedtransponder70. Also shown isreceptacle150 which acceptselectrical connector140. Again, the panel of the host device is not shown for reasons of clarity. Note that the disclosedelectrical connectors120,140 are used for illustration purposes only. The embodiment of the invention encompasses the attachment or mounting of a transponder to any type or style of electrical connector.
• A third embodiment of the invention is disclosed inFIG. 15.FIG. 15 is a perspective view of anoptoelectronic device160 to which is attached atransponder70. Theoptoelectronic device160 includes afiber optic connector170 and anelectrical connector180. In use, theoptoelectronic device160 has itselectrical connector180 attached to host device through a panel of the host device similar to the attachment of the optical fibers to the host device as discussed above in the explanation of the first embodiment of the invention. Thus, the antenna associated with the panel activates thetransponder70 of theoptoelectronic device160. Thetransponder70 can be attached tooptoelectronic devices160 which are in use, or thetransponder70 can be insert molded or mounted within the housing of theoptoelectronic device160. Note that the disclosedoptoelectronic device160 is used for illustration purposes only. The embodiment of the invention encompasses the attachment or mounting of a transponder to any type or style of optoelectronic device.
• Obviously, numerous modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of appended claims, the invention may be practiced otherwise than as specifically described herein.

Claims (11)

1-10. (canceled)

11: A device comprising:

a fiber optic cable having a fiber optic connector;

a transponder attached to the fiber optic connector;

a substrate adapted for attachment to a panel of a host device;

an antenna attached to the substrate; and

a transceiver electrically connected to the antenna so as to form a reader which is capable of activating and interrogating the transponder when the transponder is sufficiently close to the antenna, and wherein

the fiber optic cable has a length, and wherein

the transponder includes information related to the length of the fiber optic cable.

12. (canceled)

13: A device comprising:

a fiber optic cable having a fiber optic connector;

a transponder attached to the fiber optic connector;

a substrate adapted for attachment to a panel of a host device;

an antenna attached to the substrate; and

a transceiver electrically connected to the antenna so as to form a reader which is capable of activating and interrogating the transponder when the transponder is sufficiently close to the antenna and wherein

the fiber optic connector conforms to an industrial standard, and wherein

the transponder includes information related to the industrial standard to which the fiber optic connector conforms.

14. (canceled)

15: A device comprising:

a fiber optic cable having a fiber optic connector;

a transponder attached to the fiber optic connector;

a substrate adapted for attachment to a panel of a host device;

an antenna attached to the substrate; and

a transceiver electrically connected to the antenna so as to form a reader which is capable of activating and interrogating the transponder when the transponder is sufficiently close to the antenna, and wherein

the fiber optic cable includes an optical fiber and wherein the optical fiber conforms to a predetermined optical fiber grade, and wherein

the transponder includes information related to the predetermined optical fiber grade of the optical fiber of the fiber optic cable.

16. (canceled)

17: A device comprising:

a fiber optic cable having a fiber optic connector;

a transponder attached to the fiber optic connector;

a substrate adapted for attachment to a panel of a host device;

an antenna attached to the substrate; and

a transceiver electrically connected to the antenna so as to form a reader which is capable of activating and interrogating the transponder when the transponder is sufficiently close to the antenna, and wherein

the fiber optic cable was purchased on a specified date, and wherein

the transponder includes information related to the specific purchase date of the fiber optic cable.

18. (canceled)

19: A device comprising:

a fiber optic cable having a fiber optic connector;

a transponder attached to the fiber optic connector;

a substrate adapted for attachment to a panel of a host device;

an antenna attached to the substrate; and

a transceiver electrically connected to the antenna so as to form a reader which is capable of activating and interrogating the transponder when the transponder is sufficiently close to the antenna, and wherein

the fiber optic cable was purchased pursuant to a warranty and wherein

the transponder includes information related to the warranty.

20-29. (canceled)

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