US20060145870A1 - Container including a tamper-resistant seal and to a radio frequency identification seal - Google Patents
Container including a tamper-resistant seal and to a radio frequency identification seal Download PDFInfo
- Publication number
- US20060145870A1 US20060145870A1 US11/252,573 US25257305A US2006145870A1 US 20060145870 A1 US20060145870 A1 US 20060145870A1 US 25257305 A US25257305 A US 25257305A US 2006145870 A1 US2006145870 A1 US 2006145870A1
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- United States
- Prior art keywords
- container
- antenna
- break
- seal
- tag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07798—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card part of the antenna or the integrated circuit being adapted for rupturing or breaking, e.g. record carriers functioning as sealing devices for detecting not-authenticated opening of containers
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/126—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
Definitions
- the present invention relates generally to tamper-resistant packaging and in particular to a container including a tamper-resistant seal and to a radio frequency identification seal.
- Tamper-resistant packaging is well known in the art.
- containers holding medicines are designed so that when the contents of the containers are accessed, clear visual indications signifying container access are provided.
- U.S. Pat. No. 6,747,558 to Thorne et al. discloses a device for sealing and tracking a container.
- the device includes a bolt which extends through openings in a latch mechanism on the container.
- the bolt also passes through spaced coils of the device.
- the device uses one coil to generate a magnetic field, while monitoring the corresponding magnetic field induced in the other coil. Tampering with the bolt affects the magnetic field, which in turn permits the device to detect the tampering.
- the device periodically transmits wireless signals which can be remotely received for purposes of tracking the container and monitoring the integrity of the device.
- Thorne et al. device allows tampering to be detected, it is complicated and costly to manufacture. As will be appreciated, there exists a need for an improved mechanism that allows secure uncompromised containers to be differentiated from compromised containers.
- a container comprising:
- a seal on at least a portion of said container body said seal including an antenna and a tag tuned to said antenna, said tag becoming detuned when said antenna is compromised during opening of said container.
- the tag outputs a signature in response to a scanning signal when tuned to the antenna.
- the tag resonates in response to the scanning signal when tuned to the antenna and outputs a code unique to the tag.
- the scanning signal is of a predetermined frequency.
- the antenna includes a main antenna portion and at least one breakaway portion coupled to the main antenna portion.
- the at least one breakaway portion separates from the main antenna portion when the container is compromised resulting in the tag becoming detuned from the antenna.
- the at least one breakaway portion is coupled to the main antenna portion by one-time contacts.
- the main antenna portion is provided on a door of the container and wherein the at least one breakaway portion is provided on a doorjamb of the container.
- the tag and antenna are disposed on a substrate adhered to the container.
- a radio frequency identification seal comprising:
- an antenna including a main antenna portion and at least one breakaway portion
- an RFID tag coupled and tuned to said antenna, said RFID tag outputting a signature in response to a scanning signal when tuned to said antenna.
- the radio frequency identification seal provides advantages in that a determination can be made as to whether a container has been compromised simply by scanning the tag with a scanning signal of the appropriate frequency. If the container has not been compromised, the tag outputs a unique code in response to the scanning signal. If the container has been compromised resulting in one or more breakaway portions being separated from the main antenna portion, the tag will not output the unique code in response to the scanning signal thereby clearly to identify the container as being compromised.
- FIG. 1 is an exploded perspective view of a radio-frequency identification seal used to secure a container
- FIG. 2 is a cross-sectional view of the radio-frequency identification seal of FIG. 1 ;
- FIG. 3 a is an end view of a container showing its door in an open position during installation of the radio-frequency identification seal of FIG. 1 ;
- FIG. 3 b is a side view of a portion of the container of FIG. 3 a with the door in a closed position;
- FIGS. 4 a and 4 b show alternative embodiments of radio-frequency identification seals used to secure containers
- FIG. 5 is a perspective view of a container including another embodiment of a radio-frequency identification seal
- FIG. 6 is another perspective view of the container of FIG. 5 showing the radio-frequency identification seal in a broken state
- FIG. 7 is a perspective view of a container including yet another embodiment of a radio-frequency identification seal
- FIG. 8 is a perspective view of a container including a plurality of radio-frequency identification seals
- FIG. 9 is a perspective view of a transport truck hauling a trailer having a plurality of containers, each container including a radio-frequency identification seal;
- FIG. 10 shows other vehicles having storage capabilities on which radio-frequency identification seals can be mounted
- FIG. 11 shows a station for reading RFID seals mounted on trucks and/or other vehicles
- FIG. 12 a is a perspective view of a box including a radio-frequency identification seal
- FIG. 12 b is a schematic diagram of the radio-frequency identification seal shown in FIG. 12 a;
- FIG. 13 shows other containers including radio-frequency identification seals
- FIGS. 14 a and 14 b show packing material for use in containers of the type shown in FIGS. 12 and 13 including RFID seal antennae.
- a container comprising a container body and a seal on at least a portion of the container body.
- the seal includes an antenna and a tag tuned to the antenna. The tag becomes detuned when the antenna is compromised during opening of container.
- the seal is mounted internally of the container making its existence difficult to determine.
- the seal is typically mounted adjacent the container door or access point and is compromised upon opening of the container thereby to allow entry into the container to be determined. Embodiments will now be described more fully with reference to FIGS. 1 to 14 b.
- a radio-frequency identification (RFID) seal used to secure a container is shown and is generally identified by reference numeral 10 .
- the RFID seal 10 is generally rectangular and is sandwiched between a pair of cover sheets 14 .
- the outer surfaces of the cover sheets 14 are covered by one time peal-off labels 16 . Removal of the labels 16 exposes high-tack adhesive allowing the RFID seal 10 to be secured to the container.
- the RFID seal 10 includes an inner printed electronic layer 20 formed of Kapton-Polymide film.
- the inner electronic layer 20 is sandwiched between intermediate layers 22 formed of radiolucent conductive spliced polyester/fluoropolymer film.
- Surrounding the intermediate layers 22 are outer vinyl gel-foam layers 24 .
- the intermediate and outer layers 22 and 24 encapsulate the inner layer 20
- the printed electronic layer 20 includes an RFID tag 26 and an antenna 28 formed generally in the shape of a triangle.
- the antenna 28 is formed using fine German silver wire and comprises a main shielded antenna portion 30 and a break-away portion 32 coupled to the main antenna portion 30 by one-time, break-away contacts 34 .
- the RFID tag 26 is tuned to the antenna 28 so that when the RFID tag 26 is scanned by a signal at a predetermined frequency and the antenna 28 is intact, the RFID tag 26 resonates causing the RFID tag 26 to output a code unique to the RFID tag 26 .
- one of the labels 16 is removed from the RFID seal 10 and the RFID seal is adhered to the inner leading edge of the container door 38 as shown in FIG. 3 a .
- the other label 16 is removed from the RFID seal 10 and the container door 38 is closed and pushed tight until the door touches the doorjamb 40 as shown in FIG. 3 b .
- the RFID seal 10 becomes adhered to both the container door 38 and the container body.
- the outer gel-foam layers 24 help to take up any variances between the door 38 and the doorjamb 40 , when the door 38 is closed.
- the one-time contacts 34 break, thereby, isolating the break-away antenna portion 32 from the main antenna portion 30 .
- the RFID tag 26 is scanned by a signal at the predetermined frequency, the RFID tag does not resonate as the tuning between the antenna 28 and the RFID tag 26 is lost. Hence the RFID tag 26 does not output the unique code.
- the RFID seal 10 allows an inspector to determine very quickly whether the container 36 has been compromised. If the container 36 is packed and sealed at a secure location, scanning the container 36 to determine if the RFID tag 26 outputs the unique code at border crossings and/or other inspection points allows an inspector to determine quickly whether the container 10 requires inspection.
- FIGS. 4 a and 4 b show two alternative electronic layer designs including different shaped antennas 28 and different break-away contact 34 locations. Also, the RFID seal 10 need not be rectangular in shape. The RFID seal 10 may take on any convenient geometric shape such as square, circular, triangular etc.
- container 50 including an alternative embodiment of an RFID seal is shown.
- container 50 in this embodiment includes a generally rectangular container body 52 having a door 54 at one end.
- the door 54 is hinged to the container body 52 allowing the door to swing between open and closed positions.
- a lock 56 is provided on the door 54 to allow the door to be locked in the closed position.
- the RFID seal 60 includes an RFID tag 62 and an antenna 64 .
- the antenna 64 is formed using fine German silver wire and comprises a main antenna portion 66 and a break-away portion 68 coupled to the main antenna portion 66 by one-time, break-away contacts 70 .
- the main antenna portion 66 in this embodiment is latticed throughout the door 54 .
- the break-away portion 68 is adhered to the container body 52 at the doorjamb.
- the one-time contacts 70 break, thereby, isolating the break-away antenna portion 68 from the main antenna portion 66 .
- the RFID tag 62 is scanned by a signal at the predetermined frequency, the RFID tag does not resonate as the tuning between the antenna 64 and the RFID tag 62 is lost. Hence the RFID tag 62 does not output the unique code.
- the RFID tag 62 is tuned to the antenna 64 with the break-away antenna portion 68 free of the container doorjamb and coupled to the main antenna portion 66 .
- the break-away antenna portion 68 is removed from the main antenna portion 66 and is adhered to the doorjamb of the container body 52 .
- the container 50 is then loaded with goods to be transported. Once the container 50 has been loaded, the door 54 is closed and locked.
- the one-time contacts 70 are then formed between the main antenna portion 66 and the break-away antenna portion 68 to complete the antenna 64 .
- the RFID tag 62 is then scanned to confirm that the RFID tag outputs the unique code signifying that the RFID tag remains tuned to the antenna 64 .
- FIG. 7 shows another embodiment of a container 110 including an RFID seal 120 comprising an RFID tag 122 and an antenna 124 .
- the antenna 124 includes, a main antenna portion 124 , a break-away antenna portion 128 a on the doorjamb of the container body 112 as well as a break-away antenna portion 128 b adjacent the lock 116 .
- the break-away antenna portions 128 a and 128 b are coupled to the main antenna portion 124 by one-time, break-away contacts 130 .
- the RFID tag 122 becomes detuned and hence does not output the unique code when scanned.
- FIG. 8 shows yet another embodiment of a container 210 including a container body 212 , a door 214 and a plurality of RFID seals 220 similar to the RFID seal 20 shown in FIGS. 1 and 2 .
- the top, sides and bottom of the container body 212 include RFID seals 220 .
- FIG. 9 shows a transport truck 300 hauling a trailer 302 having containers 310 .
- Each container 310 has a door 314 including an RFID seal 320 of the type shown in FIGS. 5 and 6 .
- FIG. 10 shows other vehicles having storage capabilities on which radio-frequency identification seals can be mounted.
- RFID reader antennae 350 are mounted on a frame structure 352 through which trucks and vehicles pass allowing RFID seals carried by the trucks and vehicles to be read.
- the results of the RFID seal reads can be transmitted by a wireless transmitter 354 to a central location 356 for verification.
- FIGS. 12 a and 12 b show still yet another embodiment of a container 410 including an RFID seal 420 .
- the container 410 is in the form of a rectangular or square box having a seam 412 separating the two flaps 414 defining the top of the box.
- the RFID seal 420 in this case includes a substrate 421 that is adhered to the top of the box 410 and spans the seam 412 .
- An RFID tag 422 and an antenna 424 are also adhered to the substrate 421 .
- the RFID tag 422 is pre-tuned to the antenna 424 .
- the antenna 424 includes a main antenna portion 426 and a plurality of break-away antenna portions 428 a , 428 b and 428 c at spaced locations along the length of the antenna 424 .
- the break-away antenna portions 428 a , 428 b and 428 c are coupled to the main antenna portion 426 by one-time contacts 430 .
- Two of the break-away antenna portions 428 a and 428 b span the seam 412 . In this manner, when the box 410 is opened along the seam 412 and the RFID seal 420 is torn, one or more of the break-away antenna portions 428 a , 428 b and 428 c separate from the main antenna portion 426 via the one-time contacts 430 . As a result, the RFID tag 422 becomes detuned and thus, provides no output when scanned at the predetermined frequency.
- FIG. 13 shows other containers incorporating RFID seals.
- the break-away antenna portions of the RFID seal antennae need not engage the containers. Rather, the break-away antenna portions can be incorporated into packing material placed into the containers as shown in FIGS. 14 a and 14 b . In these cases, the break-away antenna portions are coupled to the main antenna portions on the containers so that when the containers are opened, the break-away antenna portions separate from the RFID seals and the RFID seals become de-tuned.
- the RFID seals allow containers to be inspected to determine if a container has been compromised quickly and easily simply by scanning the RFID seal with a signal at the appropriate frequency.
- Containers whose RFID tags do not output a unique code in response to the scanning signal are immediately recognized as having been tampered with. Decisions to inspect containers can thus be made quickly and accurately increasing the efficiency of inspection points such as border crossings.
- RFID tags While specific examples of containers are shown, those of skill in the art will appreciate that the containers make and shape take virtually any form. Also, while specific reference is made to RFID tags, those of skill in the art will appreciate that other types of tags that can be tuned to an antenna and are responsive to scanning signals can of course be used. When RFID tags are used, the RFID tags may be of the passive or active type.
Abstract
A radio frequency identification seal comprises an antenna including a main antenna portion and at least one break-away portion and an RFID tag coupled and tuned to the antenna. The RFID tag outputs a signature in response to a scanning signal when tuned to the antenna.
Description
- The present invention relates generally to tamper-resistant packaging and in particular to a container including a tamper-resistant seal and to a radio frequency identification seal.
- Tamper-resistant packaging is well known in the art. In the pharmaceutical industry, containers holding medicines are designed so that when the contents of the containers are accessed, clear visual indications signifying container access are provided.
- In other environments, providing such visual tamper-resistance on containers is difficult. As a result, manual inspection of containers in many environments is required. For example, at border crossings and other inspection points, large containers carried by trucks and ships are typically manually inspected. Containers of this nature generally provide no visual indication signifying if the containers have been opened. This of course slows the inspection process as all containers must be inspected.
- U.S. Pat. No. 6,747,558 to Thorne et al. discloses a device for sealing and tracking a container. The device includes a bolt which extends through openings in a latch mechanism on the container. The bolt also passes through spaced coils of the device. The device uses one coil to generate a magnetic field, while monitoring the corresponding magnetic field induced in the other coil. Tampering with the bolt affects the magnetic field, which in turn permits the device to detect the tampering. The device periodically transmits wireless signals which can be remotely received for purposes of tracking the container and monitoring the integrity of the device.
- Although the Thorne et al. device allows tampering to be detected, it is complicated and costly to manufacture. As will be appreciated, there exists a need for an improved mechanism that allows secure uncompromised containers to be differentiated from compromised containers.
- It is therefore an object of the present invention to provide a container including a tamper-resistant seal and to a radio frequency identification seal.
- According to one aspect there is provided a container comprising:
- a container body; and
- a seal on at least a portion of said container body, said seal including an antenna and a tag tuned to said antenna, said tag becoming detuned when said antenna is compromised during opening of said container.
- In one embodiment, the tag outputs a signature in response to a scanning signal when tuned to the antenna. In particular, the tag resonates in response to the scanning signal when tuned to the antenna and outputs a code unique to the tag. The scanning signal is of a predetermined frequency.
- The antenna includes a main antenna portion and at least one breakaway portion coupled to the main antenna portion. The at least one breakaway portion separates from the main antenna portion when the container is compromised resulting in the tag becoming detuned from the antenna. The at least one breakaway portion is coupled to the main antenna portion by one-time contacts.
- In one embodiment, the main antenna portion is provided on a door of the container and wherein the at least one breakaway portion is provided on a doorjamb of the container.
- In another embodiment, the tag and antenna are disposed on a substrate adhered to the container.
- According to another aspect there is provided a radio frequency identification seal comprising:
- an antenna including a main antenna portion and at least one breakaway portion; and
- an RFID tag coupled and tuned to said antenna, said RFID tag outputting a signature in response to a scanning signal when tuned to said antenna.
- The radio frequency identification seal provides advantages in that a determination can be made as to whether a container has been compromised simply by scanning the tag with a scanning signal of the appropriate frequency. If the container has not been compromised, the tag outputs a unique code in response to the scanning signal. If the container has been compromised resulting in one or more breakaway portions being separated from the main antenna portion, the tag will not output the unique code in response to the scanning signal thereby clearly to identify the container as being compromised.
- Embodiments will now be described more fully with reference to the accompanying drawings in which:
-
FIG. 1 is an exploded perspective view of a radio-frequency identification seal used to secure a container; -
FIG. 2 is a cross-sectional view of the radio-frequency identification seal ofFIG. 1 ; -
FIG. 3 a is an end view of a container showing its door in an open position during installation of the radio-frequency identification seal ofFIG. 1 ; -
FIG. 3 b is a side view of a portion of the container ofFIG. 3 a with the door in a closed position; -
FIGS. 4 a and 4 b show alternative embodiments of radio-frequency identification seals used to secure containers; -
FIG. 5 is a perspective view of a container including another embodiment of a radio-frequency identification seal; -
FIG. 6 is another perspective view of the container ofFIG. 5 showing the radio-frequency identification seal in a broken state; -
FIG. 7 is a perspective view of a container including yet another embodiment of a radio-frequency identification seal; -
FIG. 8 is a perspective view of a container including a plurality of radio-frequency identification seals; -
FIG. 9 is a perspective view of a transport truck hauling a trailer having a plurality of containers, each container including a radio-frequency identification seal; -
FIG. 10 shows other vehicles having storage capabilities on which radio-frequency identification seals can be mounted; -
FIG. 11 shows a station for reading RFID seals mounted on trucks and/or other vehicles; -
FIG. 12 a is a perspective view of a box including a radio-frequency identification seal; -
FIG. 12 b is a schematic diagram of the radio-frequency identification seal shown inFIG. 12 a; -
FIG. 13 shows other containers including radio-frequency identification seals; and -
FIGS. 14 a and 14 b show packing material for use in containers of the type shown inFIGS. 12 and 13 including RFID seal antennae. - A container comprising a container body and a seal on at least a portion of the container body is provided. The seal includes an antenna and a tag tuned to the antenna. The tag becomes detuned when the antenna is compromised during opening of container. The seal is mounted internally of the container making its existence difficult to determine. The seal is typically mounted adjacent the container door or access point and is compromised upon opening of the container thereby to allow entry into the container to be determined. Embodiments will now be described more fully with reference to FIGS. 1 to 14 b.
- Turning now to
FIGS. 1 and 2 , a radio-frequency identification (RFID) seal used to secure a container is shown and is generally identified byreference numeral 10. As can be seen, in this embodiment theRFID seal 10 is generally rectangular and is sandwiched between a pair ofcover sheets 14. The outer surfaces of thecover sheets 14 are covered by one time peal-off labels 16. Removal of thelabels 16 exposes high-tack adhesive allowing theRFID seal 10 to be secured to the container. - As can be seen in
FIG. 2 , theRFID seal 10 includes an inner printedelectronic layer 20 formed of Kapton-Polymide film. The innerelectronic layer 20 is sandwiched betweenintermediate layers 22 formed of radiolucent conductive spliced polyester/fluoropolymer film. Surrounding theintermediate layers 22 are outer vinyl gel-foam layers 24. The intermediate andouter layers inner layer 20 - The printed
electronic layer 20 includes anRFID tag 26 and anantenna 28 formed generally in the shape of a triangle. Theantenna 28 is formed using fine German silver wire and comprises a main shieldedantenna portion 30 and a break-awayportion 32 coupled to themain antenna portion 30 by one-time, break-awaycontacts 34. - The
RFID tag 26 is tuned to theantenna 28 so that when theRFID tag 26 is scanned by a signal at a predetermined frequency and theantenna 28 is intact, theRFID tag 26 resonates causing theRFID tag 26 to output a code unique to theRFID tag 26. - During installation of the
RFID seal 10 on acontainer 36, one of thelabels 16 is removed from theRFID seal 10 and the RFID seal is adhered to the inner leading edge of thecontainer door 38 as shown inFIG. 3 a. Once thecontainer 36 is full, theother label 16 is removed from theRFID seal 10 and thecontainer door 38 is closed and pushed tight until the door touches the doorjamb 40 as shown inFIG. 3 b. In this manner, theRFID seal 10 becomes adhered to both thecontainer door 38 and the container body. The outer gel-foam layers 24 help to take up any variances between thedoor 38 and the doorjamb 40, when thedoor 38 is closed. - When the
door 38 is opened, the one-time contacts 34 break, thereby, isolating the break-away antenna portion 32 from themain antenna portion 30. In this case, if theRFID tag 26 is scanned by a signal at the predetermined frequency, the RFID tag does not resonate as the tuning between theantenna 28 and theRFID tag 26 is lost. Hence theRFID tag 26 does not output the unique code. As will be appreciated, theRFID seal 10 allows an inspector to determine very quickly whether thecontainer 36 has been compromised. If thecontainer 36 is packed and sealed at a secure location, scanning thecontainer 36 to determine if theRFID tag 26 outputs the unique code at border crossings and/or other inspection points allows an inspector to determine quickly whether thecontainer 10 requires inspection. - Although the
RFID seal 10 is described above as having anantenna 28 that is generally triangular in shape, other antenna configurations are possible.FIGS. 4 a and 4 b show two alternative electronic layer designs including different shapedantennas 28 and different break-away contact 34 locations. Also, theRFID seal 10 need not be rectangular in shape. TheRFID seal 10 may take on any convenient geometric shape such as square, circular, triangular etc. - Turning now to
FIGS. 5 and 6 , acontainer 50 including an alternative embodiment of an RFID seal is shown. As can be seen,container 50 in this embodiment includes a generallyrectangular container body 52 having adoor 54 at one end. Thedoor 54 is hinged to thecontainer body 52 allowing the door to swing between open and closed positions. A lock 56 is provided on thedoor 54 to allow the door to be locked in the closed position. - Similar to the previous embodiment, the
RFID seal 60 includes anRFID tag 62 and anantenna 64. Theantenna 64 is formed using fine German silver wire and comprises amain antenna portion 66 and a break-awayportion 68 coupled to themain antenna portion 66 by one-time, break-awaycontacts 70. Themain antenna portion 66 in this embodiment is latticed throughout thedoor 54. The break-awayportion 68 is adhered to thecontainer body 52 at the doorjamb. - When the
door 54 is opened, the one-time contacts 70 break, thereby, isolating the break-away antenna portion 68 from themain antenna portion 66. Thus, if theRFID tag 62 is scanned by a signal at the predetermined frequency, the RFID tag does not resonate as the tuning between theantenna 64 and theRFID tag 62 is lost. Hence theRFID tag 62 does not output the unique code. - During installation of the
RFID seal 60, theRFID tag 62 is tuned to theantenna 64 with the break-away antenna portion 68 free of the container doorjamb and coupled to themain antenna portion 66. Once theRFID tag 62 has been tuned, the break-away antenna portion 68 is removed from themain antenna portion 66 and is adhered to the doorjamb of thecontainer body 52. Thecontainer 50 is then loaded with goods to be transported. Once thecontainer 50 has been loaded, thedoor 54 is closed and locked. The one-time contacts 70 are then formed between themain antenna portion 66 and the break-away antenna portion 68 to complete theantenna 64. TheRFID tag 62 is then scanned to confirm that the RFID tag outputs the unique code signifying that the RFID tag remains tuned to theantenna 64. -
FIG. 7 shows another embodiment of acontainer 110 including anRFID seal 120 comprising anRFID tag 122 and an antenna 124. In this embodiment, the antenna 124 includes, a main antenna portion 124, a break-away antenna portion 128 a on the doorjamb of the container body 112 as well as a break-away antenna portion 128 b adjacent the lock 116. The break-away antenna portions 128 a and 128 b are coupled to the main antenna portion 124 by one-time, break-awaycontacts 130. When the door 114 is opened, one or both break-away antenna portions 128 a and 128 b separate from the main antenna portion 126 via the one-time contacts 130. As a result, theRFID tag 122 becomes detuned and hence does not output the unique code when scanned. -
FIG. 8 shows yet another embodiment of acontainer 210 including a container body 212, adoor 214 and a plurality of RFID seals 220 similar to theRFID seal 20 shown inFIGS. 1 and 2 . As can be seen, in addition to thedoor 214, the top, sides and bottom of the container body 212 include RFID seals 220. - Although the above-embodiments show the RFID seals used to secure containers, those of skill in the art will appreciate that the RFID seals may be used to secure other containment devices. For example,
FIG. 9 shows atransport truck 300 hauling atrailer 302 havingcontainers 310. Eachcontainer 310 has adoor 314 including anRFID seal 320 of the type shown inFIGS. 5 and 6 .FIG. 10 shows other vehicles having storage capabilities on which radio-frequency identification seals can be mounted. - In situations where the RFID seals are used on trucks and/or other vehicles, stations such as that shown in
FIG. 11 may be used to check the integrity of the RFID seals. In this caseRFID reader antennae 350 are mounted on aframe structure 352 through which trucks and vehicles pass allowing RFID seals carried by the trucks and vehicles to be read. The results of the RFID seal reads can be transmitted by awireless transmitter 354 to acentral location 356 for verification. -
FIGS. 12 a and 12 b show still yet another embodiment of a container 410 including anRFID seal 420. In this embodiment, the container 410 is in the form of a rectangular or square box having aseam 412 separating the twoflaps 414 defining the top of the box. TheRFID seal 420 in this case includes asubstrate 421 that is adhered to the top of the box 410 and spans theseam 412. AnRFID tag 422 and anantenna 424 are also adhered to thesubstrate 421. TheRFID tag 422 is pre-tuned to theantenna 424. Theantenna 424 includes amain antenna portion 426 and a plurality of break-away antenna portions antenna 424. The break-away antenna portions main antenna portion 426 by one-time contacts 430. Two of the break-away antenna portions 428 a and 428 b span theseam 412. In this manner, when the box 410 is opened along theseam 412 and theRFID seal 420 is torn, one or more of the break-away antenna portions main antenna portion 426 via the one-time contacts 430. As a result, theRFID tag 422 becomes detuned and thus, provides no output when scanned at the predetermined frequency. - Although the above-embodiment shows the RFID seal being used to secure a square box by engaging the flaps of the box, those of skill in the art will appreciate that the RFID seal may be used to secure other container configurations. For example,
FIG. 13 shows other containers incorporating RFID seals. In the embodiments ofFIGS. 12 and 13 , the break-away antenna portions of the RFID seal antennae need not engage the containers. Rather, the break-away antenna portions can be incorporated into packing material placed into the containers as shown inFIGS. 14 a and 14 b. In these cases, the break-away antenna portions are coupled to the main antenna portions on the containers so that when the containers are opened, the break-away antenna portions separate from the RFID seals and the RFID seals become de-tuned. - As will be appreciated, in the above-described embodiments the RFID seals allow containers to be inspected to determine if a container has been compromised quickly and easily simply by scanning the RFID seal with a signal at the appropriate frequency. Containers whose RFID tags do not output a unique code in response to the scanning signal are immediately recognized as having been tampered with. Decisions to inspect containers can thus be made quickly and accurately increasing the efficiency of inspection points such as border crossings.
- While specific examples of containers are shown, those of skill in the art will appreciate that the containers make and shape take virtually any form. Also, while specific reference is made to RFID tags, those of skill in the art will appreciate that other types of tags that can be tuned to an antenna and are responsive to scanning signals can of course be used. When RFID tags are used, the RFID tags may be of the passive or active type.
- Although embodiments have been described, those of skill in the art will appreciate that variations and modifications may be made without departing from the spirit and scope thereof as defined by the appended claims.
Claims (16)
1. A container comprising:
a container body; and
a seal on at least a portion of said container body, said seal including an antenna and a tag tuned to said antenna, said tag becoming detuned when said antenna is compromised during opening of said container.
2. A container according to claim 1 wherein said tag outputs a signature in response to a scanning signal when tuned to said antenna.
3. A container according to claim 2 wherein said tag resonates in response to said scanning signal when tuned to said antenna and outputs a code unique to said tag.
4. A container according to claim 3 wherein said scanning signal is of a predetermined frequency.
5. A container according to claim 2 wherein said antenna includes a main antenna portion and at least one break-away portion coupled to said main antenna portion, said at least one break-away portion separating from said main antenna portion when said container is compromised resulting in said tag becoming detuned from said antenna.
6. A container according to claim 5 wherein said at least one break-away portion is coupled to said main antenna portion by one-time contacts.
7. A container according to claim 6 wherein said main antenna portion is provided on a door of said container and wherein said at least one break-away portion is provided on a doorjamb of said container.
8. A container according to claim 6 comprising a plurality of break-away portions at spaced locations along said antenna.
9. A container according to claim 6 wherein said main antenna portion is provided on a door of said container and wherein at least one of said break-away portions is provided on a doorjamb of said container.
10. A container according to claim 6 wherein another of said break-away portions is provided adjacent a lock on said door.
11. A container according to claim 6 wherein said tag and antenna are disposed on a substrate secured to said container.
12. A container according to claim 11 wherein said substrate is adhered to said container.
13. A radio frequency identification seal comprising:
an antenna including a main antenna portion and at least one break-away portion; and
an RFID tag coupled and tuned to said antenna, said RFID tag outputting a signature in response to a scanning signal when tuned to said antenna.
14. A radio frequency identification seal according to claim 13 wherein said RFID tag outputs a unique code in response to said scanning signal.
15. A radio frequency identification seal according to claim 12 wherein said at least one break-away portion is coupled to said main antenna portion by one-time contacts.
16. A radio frequency identification seal according to claim 15 comprising a plurality of break-away portions.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/252,573 US20060145870A1 (en) | 2004-10-19 | 2005-10-19 | Container including a tamper-resistant seal and to a radio frequency identification seal |
US12/081,444 US8063779B2 (en) | 2004-10-19 | 2008-04-16 | Container including a tamper-resistant seal and radio frequency identification seal |
US13/302,958 US9070068B2 (en) | 2004-10-19 | 2011-11-22 | Passive tamper-resistant seal and applications therefor |
US14/744,486 US9483724B2 (en) | 2004-10-19 | 2015-06-19 | Passive tamper-resistant seal and applications therefor |
US15/286,797 US10008083B2 (en) | 2004-10-19 | 2016-10-06 | Passive tamper-resistant seal and applications therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US61969204P | 2004-10-19 | 2004-10-19 | |
US11/252,573 US20060145870A1 (en) | 2004-10-19 | 2005-10-19 | Container including a tamper-resistant seal and to a radio frequency identification seal |
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US12/081,444 Continuation US8063779B2 (en) | 2004-10-19 | 2008-04-16 | Container including a tamper-resistant seal and radio frequency identification seal |
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US20060145870A1 true US20060145870A1 (en) | 2006-07-06 |
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US11/252,573 Abandoned US20060145870A1 (en) | 2004-10-19 | 2005-10-19 | Container including a tamper-resistant seal and to a radio frequency identification seal |
US12/081,444 Active US8063779B2 (en) | 2004-10-19 | 2008-04-16 | Container including a tamper-resistant seal and radio frequency identification seal |
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Application Number | Title | Priority Date | Filing Date |
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US12/081,444 Active US8063779B2 (en) | 2004-10-19 | 2008-04-16 | Container including a tamper-resistant seal and radio frequency identification seal |
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CA (1) | CA2523832C (en) |
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Also Published As
Publication number | Publication date |
---|---|
US8063779B2 (en) | 2011-11-22 |
US20080266109A1 (en) | 2008-10-30 |
CA2523832A1 (en) | 2006-04-19 |
CA2523832C (en) | 2015-07-07 |
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