This disclosure relates generally to containers, and, more particularly, to container locking systems for containers.
Containers may be used for storage, shipping, and packaging of a variety of products. For example, intermediate bulk containers (IBCs), drums, barrels, bottles, and/or other containers are designed for the transport and storage of bulk liquid and granulated substances such as chemicals, food ingredients, solvents, pharmaceuticals, hazardous materials, and/or a variety of other goods and products known in the art. Intermodal containers, often called shipping containers, are designed for use across different modes of transportation (e.g., ship, rail, truck) without unloading the cargo stored within. Containers typically provide one or more openings that allow access to the containers through which the container may be filled with cargo, and/or through which the cargo may be removed. During shipment and storage, these openings may be obstructed with a variety of closures such as, for example, doors, caps, plugs, tops, valves, lids, and other closures. These closures provide many benefits for the container and the product being shipped and/or stored within the container such as, for example, preventing the product within the container from escaping or be removed by unauthorized parties, preventing materials from outside of the container from entering the container and contaminating the product, preventing spoilage, as well as other uses that would be apparent to one of skill in the art.
Conventional closures attempt to provide container security by including seals that, when broken, indicate whether the container has been opened, prior to, or subsequent to filling/packing the container with the product. Due to the nature of some products being shipped in containers, seals may be important for tracking and determining whether the product within the container has been tampered with (e.g., lost, stolen, and/or contaminated) and/or accessed for legitimate purposes. Such conventional container security systems provide the ability to detect whether the container has experienced tampering by visual inspection of the seal. However, these conventional container security systems are subject to circumvention. For example, the seal may be broken, the closure removed, the product in the container replaced, diluted, or stolen (e.g., during shipment), and the closure and the seal then duplicated and replaced on the container such that the tampering with the product or contents of the container goes undetected.
In some embodiments in accordance with the present disclosure, a container locking system includes a container that includes a container chassis that defines a container volume and a container opening that is accessible via a first door that includes a first locking bar and a second door that includes a second locking bar; and a container locking device that includes: a container chassis coupling device that includes: a first mounting bracket that includes a first locking bar securing element that is configured to secure the first mounting bracket to the first locking bar; and a second mounting bracket that is slidably coupled to the first mounting bracket via a slidable coupling and that includes a second locking bar securing element that is configured to secure the second mounting bracket to the second locking bar, wherein the container chassis coupling device prevents the first locking bar and the second locking bar from being oriented from a locked orientation to an unlocked orientation when the first locking bar securing element is engaged with the first locking bar, the second locking bar securing element is engaged with the second locking bar, and a bracket lock device is in a lock orientation that prevents slidable movement of the first mounting bracket relative to the second mounting bracket; and a node mounting device that is coupled to the first mounting bracket or the second mounting bracket and that is configured to couple a node chassis of a node device to the container chassis coupling device.
In various embodiments of the container locking system, the container locking device further includes: a node device that includes a node chassis that is coupled to the node mounting device and the node chassis houses: a communication system; a processing system coupled to the communication system; and a memory system that is coupled to the processing system and that includes instruction, that when executed by the processing system, causes the processing system to provide a container engine that is configured to: communicate container system information associated with the container locking system via the communication system.
In various embodiments of the container locking system, the node chassis includes a seal detection sensor that is coupled to the processing system and that is configured to detect a seal tampering event.
In various embodiments of the container locking system, the container locking device further includes: a seal that is coupled to the seal detection sensor and the container locking device such that the seal causes the seal tampering event to be detected by the seal detection sensor when the container locking device is accessed to orientate the container locking device to allow the first locking bar and the second locking bar to transition from the locked orientation to the unlocked orientation.
In various embodiments of the container locking system, the seal includes a breakaway tape that includes a conductive layer electrically coupled to the seal detection sensor, wherein the a least a first portion of the breakaway tape and a first portion of the conductive layer are configured to break away from a second portion of the breakaway tape and a second portion of the conductive layer when a force used to overcome an adhesive bond between the breakaway tape and the container chassis coupling device is applied to the breakaway tape.
In various embodiments of the container locking system, the seal includes a conductive layer electrically coupled to the seal detection sensor, and wherein the seal detection sensor detects the seal tampering event when the conductive layer is disrupted such that the seal detection sensor detects a change in impedance that satisfies a predetermined impedance change threshold of the conductive layer.
In various embodiments of the container locking system, the seal includes an ultraviolet protection layer that is located opposite the seal from an adhesive layer.
In various embodiments of the container locking system, the slidable coupling includes one or more retaining clips that prevent movement of the first mounting bracket to the second mounting bracket in a direction that is orthogonal to a slidable direction.
In various embodiments of the container locking system, the bracket lock device includes a knob on the first mounting bracket that is connected to one or more stoppers and that is configured to engage the one or more stoppers with the second mounting bracket such that the first mounting bracket and the second mounting bracket are in a lock orientation that prevents the slidable movement of the first mounting bracket relative to the second mounting bracket when the knob is in a first orientation and is configured to disengage the one or more stoppers with the second mounting bracket such that the first mounting bracket and the second mounting bracket are in an unlock orientation that enables the slidable movement of the first mounting bracket relative to the second mounting bracket when the knob is in a second orientation.
In various embodiments of the container locking system, the node mounting device includes a node release that is configured to disengage a node from the node mounting device when activated.
In various embodiments of the container locking system, the node mounting device includes a node mounting device cover that when in a closed position defines a seal aperture with the node mounting device to receive a seal end of a seal for electrically coupling with a node device.
In some embodiments in accordance with the present disclosure a container locking device includes a container chassis coupling device that includes: a first mounting bracket that includes a first locking bar securing element that is configured to secure the first mounting bracket to a first locking bar on a container; and a second mounting bracket that is slidably coupled to the first mounting bracket via a slidable coupling and that includes a second locking bar securing element that is configured to secure the second mounting bracket to a second locking bar on the container, wherein the container chassis coupling device prevents the first locking bar and the second locking bar from being oriented from a locked orientation to an unlocked orientation when the first locking bar securing element is engaged with the first locking bar, the second locking bar securing element is engaged with the second locking bar, and a bracket lock device is in a lock orientation that prevents slidable movement of the first mounting bracket relative to the second mounting bracket; and a node mounting device that is coupled to the first mounting bracket or the second mounting bracket and that is configured to couple a node chassis of a node device to the container chassis coupling device.
In various embodiments of the container locking device, the slidable coupling includes one or more retaining clips that prevent movement of the first mounting bracket to the second mounting bracket in a direction that is orthogonal to a slidable direction.
In various embodiments of the container locking device, the bracket lock device includes a knob on the first mounting bracket that is connected to one or more stoppers and that is configured to engage the one or more stoppers with the second mounting bracket such that the first mounting bracket and the second mounting bracket are in a lock orientation that prevents the slidable movement of the first mounting bracket relative to the second mounting bracket when the knob is in a first orientation and is configured to disengage the one or more stoppers with the second mounting bracket such that the first mounting bracket and the second mounting bracket are in an unlock orientation that enables the slidable movement of the first mounting bracket relative to the second mounting bracket when the knob is in a second orientation.
In various embodiments of the container locking device, the first locking bar securing element includes a first longitudinal securing element that prevents the first locking bar securing element from being moved along a longitudinal axis of the first locking bar, and wherein the second locking bar securing element includes a second longitudinal securing element that prevents the first locking bar securing element from being moved along the longitudinal axis of the first locking bar.
In some embodiments in accordance with the present disclosure a container seal includes: a breakaway tape that includes: an adhesive layer; a body layer that is coupled to the adhesive layer; and a conductive layer that is at least one of being disposed between the body layer and the adhesive layer, disposed within the body layer or adhesive layer, or coupled to the body layer such that the body layer is between the conductive layer and the adhesive layer, wherein the body layer includes a material that is configured to cause a first portion of the body layer to break away from a second portion of the body layer when a force to overcome an adhesive bond between the adhesive layer and a surface to which the breakaway tape is configured to adhere to is applied to the breakaway tape.
In various embodiments of the container seal, the breakaway tape further includes an ultraviolet resist layer that provided opposite the body layer of the breakaway tape from the adhesive layer such that the body layer and the conductive layer are between the adhesive layer and the ultraviolet resist layer, wherein the ultraviolet resist layer is configured to prevent degradation of the breakaway tape from ultraviolet radiation.
In various embodiments of the container seal, the conductive layer is coupled to one or more electrical contacts that are exposed via the adhesive layer.
In various embodiments of the container seal, the conductive layer is configured such that the conductive layer provides a first impedance detectable via the one or more electrical contacts and the breakaway tape is adhered to a surface, and a second impedance detectable via the one or more electrical contacts when the breakaway tape is at least one of bent, ripped, drilled, or compressed.
In various embodiments of the container seal, the breakaway tape further comprises a liner layer that is coupled to the adhesive layer and a force required to remove the liner layer from the adhesive layer is less than the force that causes the first portion of the body layer to break away from the second portion of the body layer.
Embodiments of the present disclosure may be understood by referring to the detailed description that follows. It should be appreciated that like reference numerals are used to identify like elements illustrated in one or more of the figures, wherein showings therein are for purposes of illustrating embodiments of the present disclosure and not for purposes of limiting the same.
Embodiments of the present disclosure include a container locking system, as well as methods for coupling a container locking device to a container and performing container security that may be used to track access to a container and its contents. As discussed above, existing seals and locking systems for containers do not prevent tampering with the containers and products provided within those containers, as it has been found that seals and locking systems are easily reproduced and replaced on tampered-with containers such that it is difficult for legitimate parties (e.g., a container manufacturer, a container packer, a container transporter, a container end user, and other parties) associated with the container to detect tampering with the closure and/or seal. Furthermore, some industries may require that access to the container volume be tracked during the lifecycle of the container and conventional seals and locking systems lack tracking capabilities.
As would be appreciated by one of skilled in the art, intermodal containers may be shipped across the globe where the intermodal container experiences many environmental conditions, is loaded and unloaded from various transportation systems (e.g., trains, ships, trucks, etc.), stored and stacked on other intermodal containers without having to unpack or pack the cargo within those containers. Intermodal containers may include a set of door walls that are typically located at the front of the container and make up the front wall of the intermodal container. The door walls may provide the closure for the intramodal container that provides an opening in the intermodal container to provide access to an intermodal container volume in which cargo is stored. Thus, when adding a closure security system and node devices, such as those developed by some of the inventors of the present disclosure, and that are described in the U.S. Pat. No. 10,538,371 and that are described in U.S. patent application Ser. No. 16/451,879, filed on Jun. 25, 2019, entitled “Container Security System,” the disclosures of which are incorporated by reference herein in their entirety and that provides for the detection of whether a container closure (e.g., the door wall) and/or a container (e.g., the intermodal container) has experienced a container system event (e.g., a tamper event), the intermodal container doors and the lifecycle of the intermodal container is taken into consideration.
In various embodiments of the present disclosure, a container locking device is disclosed. The container locking device may include a container chassis coupling device that couples the container locking device to a container. The container chassis coupling device may be coupled to one or more container doors that provide access to a container opening to a container, (e.g., an intermodal container). However, one of skill in the art in possession of the present disclosure will recognize that other container closures will benefit from the teachings of the present disclosure. For example, other opening/closing mechanisms may benefit such as windows, caps, closure fittings, and/or any other opening mechanism that would be apparent to one of skill in the art of the present disclosure. The container chassis coupling device may include a plurality of bracket members that each include a respective locking bar securing element. Each locking bar securing element is configured to engage with a locking bar included on a respective container door. The container locking device may be configured to prevent the locking bars that are engaged with slots on the container from being moved into a disengaged orientation that allows the doors to be opened.
The container locking device may also include a node device. The node device may be coupled to one of the bracket members via a node device securing member. In some embodiments, the node device may be detachable from the node device securing member via a node device release member. In some embodiments, the node device and the container chassis coupling device are configured such that, when engaged with the container, the node device chassis is substantially adjacent a door of the container chassis such that the node device may monitor a node/container presence of the node device in relation to the container chassis via one or more sensors included on or in the node device.
In various embodiments, the node device includes a power source, at least one sensor, a communication system that may include one or more types of communication interfaces, and a processing system. The node device may also include a memory system that is coupled to the processing system and that includes instruction, that when executed by the processing system, causes the processing system to provide a container engine that detects, via the at least one sensor, that a container system event has occurred and provides, via the communication system, a container system event notification for the container system event. For example, the container locking device may include a seal that requires removal before the container locking device can be removed from the doors of the container. The seal of the present disclosure may include a destructible tape that may be formed on the container closure coupling device and the node device. The destructible tape may include a conductive layer that can be monitored by the node device to detect any changes in conductivity, impedance, and/or signals that indicate that a tamper event or other security event. The destructible tape may be made of a material that experiences a plastic deformation or fracture when there is an attempt to remove the destructible tape form the container closure coupling device. As such, the seal cannot easily be removed and replaced without detection as any attempt to replace the tape may result in a different impedance in the conductive layer, signature, or tape identifier that is provided by the destroyed tape and the destroyed tape may provide visual cues that the seal has been tampered with. As such, the container locking device of the present disclosure may provide relative easy and quick attachment and detachment of the container locking device and a node device that provides security to a container.
Referring now to
In various embodiments, the container locking system 100 may include a container locking device 116. The container locking device 116 may include a container chassis coupling device 118 that is configured to couple the container locking device 116 to container chassis 104 and/or one or more of the locking bars 112a-112d. The container locking device 116 may include a node device 120 that is coupled to the container chassis coupling device 118. In various embodiments, the container locking device 116 may include a seal 122 that is coupled to the node device 120 and at least one of the container chassis coupling device 118, the container chassis 102, or at least one of the locking bars 112a-112d. The details of the container locking device 116 are described in further detail below.
In various embodiments, the node device 120 may include a processing system, a memory system, a short-range communication interface, and in some embodiments, a long-range communication interface and that is described as the container module in the U.S. Pat. No. 10,538,371 and that is described in U.S. patent application Ser. No. 16/451,879, filed on Jun. 25, 2019, entitled “Container Security System,” the node device described in U.S. patent application Ser. No. 17/021,140, attorney docket number 55700.7US01, filed on Sep. 15, 2020 entitled “Container Closure Node System,” and in U.S. Utility application Ser. No. 17/021,214 (attorney docket number 55700.8US01), filed Sep. 15, 2020, entitled “Container Valve Node System” the disclosures of which are incorporated by reference herein in their entirety. While a specific container locking device 116 is illustrated, one or skill in the art in possession of the present disclosure will recognize that other container locking device 116 may be provided that may benefit from the teachings of the present disclosure. While a specific container locking system 100 has been illustrated and described, one of skill in the art in possession of the present disclosure will recognize that the container locking system 100 of the present disclosure may include a variety of components and component configurations while remaining within the scope of the present disclosure as well.
Referring now to
The container chassis coupling device chassis 202 of container chassis coupling device 200 may include one or more mounting brackets. For example, as illustrated in
In various embodiments, the first track element 206a and the second track element 206b of the slidable coupling 206 may be include one or more retaining clips 210 that are configured to engage the second mounting bracket 204b. Referring to
Referring again to
The shaft 218 may be provided through a shaft aperture 228 that is defined by the first mounting bracket 204a and a shaft slot 230 defined by the second mounting bracket 204b. The knob 216 may be located on the front surface 202e of the first mounting bracket 204a and the stop plate 224 may be located on the rear surface 202f of the second mounting bracket 204b. The second mounting bracket 204b may also define a plurality of stopper apertures 232 that run along the length of the second mounting bracket 204b. The bracket lock device 214 may be configured such that when the knob 216 is in an unlock orientation, the shaft 218 extends the stop plate 224 such that the stop plate 224 does not engage the second mounting bracket 204b and/or the one or more stoppers 226 do not engage the stopper apertures 232, as illustrated in
Alternatively, if the bracket lock device 214 is in a lock orientation, the shaft 218 compresses the stop plate 224 such that the stop plate 224 engages the second mounting bracket 204b and/or the one or more stoppers 226 engage the stopper apertures 232, as illustrated in
The first mounting bracket 204a may be coupled to a first locking bar securing element 233. The first locking bar securing element 233 may be configured to engage the first mounting bracket 204a with a locking bar on the container 102 of
Similarly, the second mounting bracket 204b may be coupled to a second locking bar securing element 234. The second locking bar securing element 234 may be configured to engage the second mounting bracket 204b with a locking bar on the container 102 of
In various embodiments and referring to
Referring now to
The container chassis coupling device chassis 602 of container chassis coupling device 600 may include one or more mounting brackets. For example, as illustrated in
In various embodiments, the first track element 606a and the second track element 606b of the slidable coupling 606 may be include a plurality of teeth 610a that define spaces 610b. The one or more teeth 610a are configured to engage with at least one of a plurality of spaces 612b defined by a plurality of teeth 612a that extend from the rear surface 602f of the first mounting bracket 604a. The teeth 610a on the second mounting bracket 604b and the teeth 612a on the first mounting bracket 604a may be used to restrict movement of the first mounting bracket 604a relative to the second mounting bracket 604b along the x-axis (e.g., along the length of the container chassis coupling device 600) when the teeth 610a and the teeth 612a are engaged with each other. As such, the teeth 610a and 612a may provide a ratcheted track such that the slidable coupling 606 only permits movement of the first mounting bracket 604a relative to the second mounting bracket 604b along the x-axis in one-direction and the second-direction is only permitted when the 610a and 612a are released. For example, the container chassis coupling device may only decrease in length and can only increase in length if the teeth 610a and the teeth 612a disengage with each other.
The first mounting bracket 604a may be coupled to a first locking bar securing element 632. The first locking bar securing element 632 may be configured to engage the first mounting bracket 604a with a locking bar on the container 102 of
Similarly, the second mounting bracket 604b may be coupled to a second locking bar securing element 634. The second locking bar securing element 634 may be configured to engage the second mounting bracket 604b with a locking bar on the container 102 of
In various embodiments, the container chassis coupling device 600 may include a bracket lock device 614 that may be configured to restrict movement of the first mounting bracket 604a relative to the second mounting bracket 604b along the x-axis (e.g., along the length of the container chassis coupling device 200) when the bracket lock device 614 is in a lock orientation. The bracket lock device 614 may be configured to permit movement of the first mounting bracket 604a relative to the second mounting bracket 604b along the x-axis when the bracket lock device 614 is in an unlock orientation. For example, the bracket lock device 614 may include one or more fasteners that couple the ends of the buckle bracket 634a together and the ends of the buckle bracket 634b together such that the buckle brackets 634a and 634b cannot be removed from their respective locking bars, which prevents the movement of the first mounting bracket 604a relative to the second mounting bracket 604b along the x-axis.
In various embodiments, the container chassis coupling device 600 may include a node mounting device 636 that is coupled to the first mounting bracket 604a or the second mounting bracket 604b. The node mounting device 636 may define a node housing 638 in which a node device may be housed. The node mounting device 636 may include one or more node retaining clips such as a quick-release retaining clip 640a, a node retaining clip 640b, and a node retaining clip 640c. The node retaining clips 640a-640c may be configured to secure a node device within the node housing 638. The one or more node retaining clips 640a-640c may be configured to be released by a user to disengage the node device from the housing. While specific container chassis coupling devices 200 and 600 are illustrated, one of skill in the art in possession of the present disclosure will recognize that the container chassis coupling device 200 and 600 of the present disclosure may include a variety of components and component configurations while remaining within the scope of the present disclosure as well.
Referring now to
In various embodiments, the node chassis 702 may include a node securing element 705 that may be configured to engage the node mounting device 236 on the container chassis coupling device 200 of
Furthermore, while illustrated and discussed as a node device 700, one of skill in the art in possession of the present disclosure will recognize that the functionality of the node device 700 discussed below may be provided by other devices that are configured to operate similarly as discussed below. In the illustrated embodiment, the node device 700 includes the node chassis 702 that houses the components of the node device 700 in the node volume 704, only some of which are illustrated below. For example, the node chassis 702 may house a processing system (not illustrated but may be provided by a processor) and a memory system (not illustrated but may be provided by system memory (e.g., random access memory (RAM) devices such as dynamic RAM (DRAM), synchronous DRAM (SDRAM), solid state memory devices, and/or a variety of other memory devices known in the art) that is coupled to the processing system and that includes instructions that, when executed by the processing system, cause the processing system to provide a node security engine 706 that is configured to perform the functionality of the node security engines and/or node devices discussed below. The processing system and the memory system may be provided on a circuit board 707. While a processing system and a memory system are discussed as providing the node security engine 706, the node security engine 706 may be provided by application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), complex programmable logic devices (CPLDs) and/or any other hardware circuit that may be configured to cause a communication interface, discussed below, to provide a notification in response to a security sensor signal being generated by a security sensor.
The node chassis 702 may also house a storage system (not illustrated, but which may include mass storage devices that may include hard discs, optical disks, magneto-optical discs, solid-state storage devices, and/or a variety other mass storage devices known in the art.) that is coupled to the node security engine 706 (e.g., via a coupling between the storage system and the processing system) and that includes a node database 708 that is configured to store any of the information utilized by the node security engine 706 discussed below. The node chassis 702 may also house a communication system 710 that is coupled to the node security engine 706 (e.g., via a coupling between the communication system 710 and the processing system) and that may be provided by a Network Interface Controller (NIC), wireless communication systems (e.g., BLUETOOTH®, Near Field Communication (NFC) components, WiFi components, etc.), and/or any other communication components that would be apparent to one of skill in the art in possession of the present disclosure. In a particular embodiment, the communication system 710 may include a communication interface (e.g., a relatively short-range and/or relatively low-power transceiver(s)) that is configured to provide direct communication with other devices (e.g., a corresponding communication interface in the container 102 of
The node chassis 702 may also house a power supply system 712 that may include and/or be configured to couple to a battery 712a. For example, the power supply system 712 may include an integrated rechargeable battery that may be recharged in the node chassis 702 using methods known in the art, and/or may include other power sources that would be apparent to one of skill in the art in possession of the present disclosure. For example, the power supply system 712 and node chassis 702 may be configured to accept a replaceable, non-rechargeable/rechargeable battery while remaining within the scope of the present disclosure as well. The power supply system 712 may be coupled to the node security engine 706, the node database 708, the communication system 710 and/or a sensor system 714 via a power bus 713.
The node chassis 702 may also house and/or provide the sensor system 714. The sensor system 714 may include one or more security sensors that detect a security event. For sensor system 714 may include a node device movement sensor 714a (e.g., a Hall effect sensor or other motion sensor) that is provided adjacent the bottom wall 702b, included in the node securing element 705 and/or housed elsewhere in node chassis 702 such that the node device movement sensor 714a can detect when the node device 700 has moved relative to the container 102. For example, the node device movement sensor 714a may include a Hall effect sensor that can detect a magnetic field provided by a magnet coupled to and/or embedded in the front wall 104e of the container chassis 104 of
In another example, the sensor system 714 may include other security sensors such as a seal presence sensor 714b. The seal presence sensor 714b may include a first electrical contact 714b(1) and a second electrical contact 714b(2) on the top wall 702a and/or other wall of the node chassis 702 that forms a closed circuit when the seal 122 of
Referring now to
However, in other embodiments, the seal 800 may be malleable such that the seal 800 may be applied to the seal track 215 defined on the front surface 202e of the container chassis coupling device chassis 202 or on other surfaces of the container chassis coupling device chassis 202, a container chassis coupling device chassis 202 that does not include a seal track 215, another coupling device that couples a node to a container closure, and/or other surfaces of one or more structures/components that would be apparent to one of skill in the art in possession of the present disclosure. As such, the seal 800 may be configured as a tape strip or a breakaway tape strip, as discussed herein. As illustrated in
In
In various embodiments, the tape stack includes the UV resist layer 804 that may provide UV protection to the other layers of the tape stack. The container locking device 116 on which the seal 800 is included may be on a ship or yard for extended periods of time where the seal 800 is exposed to direct sunlight and UV radiation during those periods of time. The UV radiation may degrade the materials included in the tape stack. As such, the UV resist layer 804 may include UV resist ink (e.g., PMS420C), and/or any other UV resistant material that would be apparent to one of skill in the art in possession of the present disclosure that will protect the tape stack form UV radiation. The UV resist layer 804 may have negligible thickness in the tape stack and may be less than a micron. However, in other embodiments, the UV resist layer 804 may be other thicknesses and may be more than a micron (e.g., 1-10 μm).
The tape stack may also include the destructible body layer 806 that is located adjacent the UV resist layer 804 and that may include material that easily stretches, tears, breaks, and/or otherwise separates from itself. For example, the destructible body layer 806 may include a material and dimensions (e.g., thickness) that provides a plastic deformation or fractures when a force is applied to the destructible body layer 806 that is equal to or less than a force that is necessary to overcome a bonding strength between the adhesive layer 810 and the front surface 202e of the container chassis coupling device 200 and/or a bonding strength between the adhesive layer 810 and the destructible body layer 806. However, the plastic deformation or fracture characteristics of the destructible body layer 806 should be strong enough such that plastic deformation or fracture does not occur to the destructible body layer 806 when overcoming a bonding strength between the adhesive layer 810 and the adhesive liner layer 812 so that user of the seal 800 may apply the seal 800 to its intended surface without jeopardizing the mechanical properties and the conductive layer 808. In other embodiments, the destructible body layer 806 may include a thickness and/or material that may provide an elastic deformation when the force is applied to the destructible body layer 806 that is at least less than a force that is necessary to overcome a bonding strength between the adhesive layer 810 and the front surface 202e of the container chassis coupling device 200 and/or a bonding strength between the adhesive layer 810 and the destructible body layer 806. The elastic deformation characteristic of the material should be such that when the adhesive bond between the adhesive layer 810 and the front surface 202e is undone, the destructible body layer 806 should have experienced a deformation (e.g., an elastic deformation, a plastic deformation, and/or any other deformation) and/or a fracture that causes the impedance of the conductive layer 808 to change that is detectable by the node device 700 to indicate a seal tamper event, as discussed in further detail below. Also, the material that provides the destructible body layer 806 may be an insulator with a high electrical resistance and provide insulation to the conductive layer 808.
In specific examples, the destructible body layer 806 may include a vinyl material such as A202. However, other materials that would be apparent to one of skill in the art that has the characteristics described above will fall under the scope of the present disclosure. The destructible body layer 806 may be of a thickness 0.05-0.2 mm. However, other thicknesses are contemplated depending on the application of the seal 800. The force to break the seal 800 is at least 10 N. However, other forces may be contemplated (e.g., 5 N, 1 N, etc.) depending on the application of the seal 800.
The tape stack may also include the conductive layer 808. The conductive layer 808 may include one or more conductors. For example, the conductive layer 808 may include one or more traces that are formed on or within the destructible body layer 806. As such, the conductive layer 808 may not extend the entire width and/or length of the conforming member 802 and in the illustrated embodiment, forms a loop that where each end of the conductive trace connects to a respective conductive contact 808a and 808b that are adjacent to each other and dimensioned to electrically connect with the first electrical contact 714b(1) and/or the second electrical contact 714b(2) on the node device 700. The conductive layer 808 may be made of a conductive material such as carbon, silver, and/or any other conductive material that would be apparent to one skill in the art in possession of the present disclosure and be of dimensions that causes conductive layer 808 to experience a deformation and/or fracture that similar to that of the destructible body layer 806 and/or a deformation and/or a facture that causes a change in an impedance, a conductivity, or otherwise a signal being provided on the conductive layer 808 that is detectible by the node device 700 and indicative of the seal 800 experiencing a seal tamper event. In specific examples, the conductive layer 808 may be 1-10 μm and the conductive layer 808 may have an initial resistance of 5-20 ohms. However, one of skill in the art in possession of the present disclosure will recognize that other thicknesses and resistances may be contemplated depending on the application of the seal 800.
The tape stack may also include an adhesive layer 810. In various embodiments, the adhesive layer 810 may provide an adhesive bond between the seal 800 and a surface (e.g., the front surface 202e of the container chassis coupling device chassis 202). The adhesive layer 810 may provide an adhesive bond that is sufficient enough such that gravity does not cause the adhesive bond to break. In other examples, the adhesive bond should further be greater than the force required to cause the desirable deformation of the destructible body layer 806 and/or the conductive layer 808. In various embodiments, the adhesive layer 810 may be a 3M® 300L SE adhesive, a 3M® 9471LSE adhesive, and/or any other adhesive that would be apparent to one of skill in the art in possession of the present disclosure. In some embodiments, the adhesive layer 810 may be masked to provide exposure of the conductive contacts 808a and 808b in the conductive layer 808. In other embodiments, the adhesive layer 810 may be provided by or may be a continuation of the destructible body layer 806. For example, the destructible body layer 806 may have a greater bonding strength or similar bonding strength with the material of the container chassis coupling device chassis 202 than the bonding strength holding together the material of destructible body layer 806 itself. In a specific example, the adhesive layer 810 may have a thickness of 0.01-0.1 mm. However, one of skill in the art in possession of the present disclosure will recognize that other thicknesses may be contemplated depending on the application of the seal 800.
The tape stack may also include an adhesive liner layer 812 that may include a liner that weakly adheres to the adhesive layer 810 and that is configured to protect the adhesive layer 810 prior to the use of the seal 800. For example, the adhesive liner layer 812 may include an adhesive liner layer tab 812a that extends from the conforming member 802 and that allows the user to remove the adhesive liner layer 812 from the adhesive layer 810 prior to adhering the seal to 800 to an intended surface via the adhesive layer 810. In a specific example, the adhesive liner layer 812 may be the adhesive liner for the 3M® 9471LSE adhesive and have a thickness between 0.5-0.15 mm. However, one of skill in the art in possession of the present disclosure will recognize that other thicknesses may be contemplated depending on the application of the seal 800.
The tape stack may also include a conductive adhesive layer 810a. In various embodiments, the conductive adhesive layer 810a may provide an adhesive bond between the conductive contacts 808a and 808b and the first electrical contact 714b(1) and the second electrical contact 714b(2), respectively. The conductive adhesive layer 810a may provide an adhesive bond that is sufficient enough such that gravity does not cause the adhesive bond to break (e.g., at least 10 N but may be more or less depending on the application of the seal 800). In other examples, the adhesive bond should further be greater than the force required to cause the desirable deformation of the destructible body layer 806 and/or the conductive layer 808. In various embodiments, the conductive adhesive layer 810a may be a conductive adhesive such as 3M® 9725 adhesive and/or any other conductive adhesive that would be apparent to one of skill in the art in possession of the present disclosure. In a specific example, the conductive adhesive layer 810a may have a thickness of 0.01-0.1 mm. However, one of skill in the art in possession of the present disclosure will recognize that other thicknesses may be contemplated depending on the application of the seal 800.
The tape stack may also include an adhesive layer 814. In various embodiments, the adhesive layer 814 may provide an adhesive bond between the seal 800 and the stiffener shim 816. The adhesive layer 814 may provide an adhesive bond that is sufficient enough such that gravity does not cause the adhesive bond to break. In various embodiments, the adhesive layer 814 may be a 3M® 300L SE adhesive, a 3M® 9471LSE adhesive, and/or any other adhesive that would be apparent to one of skill in the art in possession of the present disclosure. In a specific example, the adhesive layer 810 may have a thickness of 0.01-0.1 mm. However, one of skill in the art in possession of the present disclosure will recognize that other thicknesses may be contemplated depending on the application of the seal 800.
The tape stack may also include a stiffener shim 816 in the node device connection area 803. The stiffener shim 816 may provide support for the seal 800 to avoid buckling and twisting while applying the seal to a surface. The stiffener shim 816 may include any ridged material (e.g., polyethylene terephthalate (PET), polyethylene, and/or any other material that would provide ridged support to the seal 800 that would be apparent to one of skill in the art in possession of the present disclosure). While the stiffener shim 816 is located adjacent the conductive contacts 808a and 808b, the stiffener shim 816 or one or more other stiffener shims 816 may be formed along the length of the conforming member 802. In a specific example, the conductive adhesive layer 810a may have a thickness of 0.05-0.15 mm. However, one of skill in the art in possession of the present disclosure will recognize that other thicknesses may be contemplated depending on the application of the seal 800.
In various embodiments, the conforming member 802 may define one or more component apertures 818 that may be dimensioned to fit a conform the conforming member 802 around any irregularly shaped components. For example, and as illustrated in
While a specific combination of layers is illustrated and described in the tape stack of the conforming member 802, some of the layers may be optional (e.g., the UV resist layer 804, the adhesive layer 810, and/or the adhesive liner layer 812) and some of the layers may be positioned differently within the tape stack. For example, the conductive layer 808 may be located between the destructible body layer 806 and the UV resist layer 804. In other embodiments, the conductive layer 808 may be located within the destructible body layer 806 such that the conductive layer 808 is encapsulated by the destructible body layer 806 (e.g., between sublayers of the destructible body layer 806. As such, while a specific seal 800 has been illustrated, one of skill in the art in possession of the present disclosure will recognize that the tape stack of the conforming member 802 may be shaped, stacked, configured with fewer or more layers, and/or other configurations while still falling under the scope of the present disclosure. Furthermore, while a specific seal 800 has been illustrated, one of skill in the art in possession of the present disclosure will recognize that seals (or other devices operating according to the teachings of the present disclosure in a manner similar to that described below for the seal 800) may include a variety of components and/or component configurations for providing the functionality discussed below, while remaining within the scope of the present disclosure as well.
Referring now to
The method 1000 begins at block 1002 where a container locking device is positioned on a container and around locking bars on the container. In an embodiment, at block 1002 and with reference to
The method 1000 then proceeds to block 1004 where the container locking device is engaged and coupled with the locking bars on the container. In an embodiment, at block 1004 and with reference to
The method 1000 may then proceed to block 1006 where the container locking device is locked. In an embodiment, at block 1006 and with reference to
The method 1000 may then proceed to block 1008 where the node device is coupled to the container chassis coupling device. In an embodiment, at block 1008 and with reference to
The method 1000 may then proceed to block 1010 where a seal is coupled to the node device and the container chassis coupling device. In an embodiment, at block 1010 and with reference to
In various embodiments of method 1000, after the container locking device 116 is assembled and coupled to the locking bars 112b and 112c, a user may decouple the container locking device 116 from the locking bars 112b and 112c. For example, the user may remove the seal 122, which will cause the seal presences sensor 714b to generate a security signal, discussed below. The user may also detach the container chassis coupling device 118/200 by, for example, turning the knob 216 that is included on the bracket locking device 214 that disengages the stoppers 226 from the stopper apertures 232 included on the second mounting bracket 204b and/or a retaining clip release mechanism that releases the slidable coupling 206 to cause the container chassis coupling device 200 to be positioned in the open orientation such that the container chassis coupling device 118/200 may be removed by the locking bars 112b and 112c. The node device movement sensor 714a may generate a security signal when the container chassis coupling device 200 transitions to the open orientation as the node device 120 may move in relation to the container 102 and embedded magnet. In other examples, the node device 120 may be released from the node device mounting device 236 via actuation of the quick release clip 240aa and/or any of the node retaining clips 240b and/or 240c.
Referring now to
However, because the seal 800 may experience extreme temperature variations during shipment of the container 102, the predetermined change in impedance may be determined based on the on how the impedance of the material used in the conductive layer 808 changes with respect to temperature. Typically, in conductors, resistance increases when temperature increases. In other embodiments, to consider changes in impedance due to an environment, the node security engine 706 may monitor for a predetermined rate of change in impedance. A relatively quick change in impedance of the conductive layer 808 to a particular level may be more indicative of a tamper event such as a party trying to remove the seal 122/800 from the container chassis coupling device 118/200 than a change in temperature, a change in moister, a change in UV exposure, etc. As discussed above, bending or straining the conductive layer 808 by moving the seal or breaking the seal may cause a change in impedance much more rapidly than a change in the environmental conditions surrounding the seal 800.
In other embodiments, the node security engine 706 may receive sensor signals from other sensors of the sensor system 714 and/or sensor signals from sensors in other node devices or sensors positioned throughout the container via the communication system 710 and determine whether any of those sensors signals satisfy a predetermined condition indicating a container system event. In yet other examples, the node security engine 706 may receive container event notifications from other nodes included in the container 102 or other containers that are in range of the container 102 where the container event has been determined by that node device. While specific sensor signals are discussed, one skill in the art in possession of the present disclosure will recognize that other sensors that may be included in the node device 120/700 may provide a sensor signal to the node security engine 706 while still falling within the scope of the present disclosure. For example, an accelerometer may detect a sudden movement, a gyroscope may indicate improper orientation, a temperature sensor may indicate an unsatisfactory temperature, and/or other sensors discussed above that may provide a security sensor signal to the node security engine 706. For example, the temperature sensor may be used in coordination with the seal presence sensor 714b to determine whether a temperature change has occurred with a change in impedance. Other sensors may be used in coordination with the seal presence sensor 714b to determine whether other environmental factors (e.g., moister, UV) have changed, which may explain the change in impedance. In various embodiments, the security sensor signal and/or the seal sensor signal may include identifier(s) that are associated with the seal 122/800, the container chassis coupling device 200, the node device 300, the container 102, the container closure 110, and/or any other component included in the container locking system 100.
The method 1100 may then proceed to block 1104 where a container event action is performed in response to the detection of the container system event and based on the type of container system event. In an embodiment, at block 1104, if the node security engine 706 detects a container system event at block 102, the node security engine 706 may perform a container event action based on the container system event. For example, the node security engine 706 may provide a container system event notification over the communication system 710 such that a server device, another node device, a user device, and/or any other device may receive the container system event notification. The container system event notification may include the type of container system event, a time at which the container system event occurred, any relevant sensor information, and/or any other information that would be apparent to one of skill in the art in possession of the present disclosure. The container system event notification may include an identifier for the container locking system 100, the node device 120/700, an alternative node device (if the container system event was detected by a different node device than the node device 120/700), the container locking device 116, the seal 122/800, and/or any other identifier of components of the container locking system 100 or any other container information that would be apparent to one of skill in the art in possession of the present disclosure. In other examples, the container event action may include storing the container system event notification in the node database 708 until the communication interface 710 has established a link with the WAN and/or until a user device accesses the container system event notification via the communication system 710. In yet another example, the container event action may include the node security engine 706 providing an indication of the container system event via a user I/O system provided in the node device 700 (e.g., a visual indication via the visual indicator (e.g., a Light Emitting Diode (LED)), an audio indication via a speaker device, and/or other I/O system devices that would be apparent to one of skill in the art in possession of the present disclosure). While specific container event actions are described, one of skill in the art in possession of the present disclosure will recognize that other container event actions may be performed and still fall under the scope of the present disclosure such as those that are described in the U.S. Pat. No. 10,538,371 and U.S. patent application Ser. No. 16/451,879, filed on Jun. 25, 2019, entitled “Container Security System.”
Thus, systems and methods have been described that provide for a container locking system, a seal, and the detection and notification of security events. The container locking device may include a container chassis coupling device that includes one or more mounting brackets that include locking bar securing members that are configured to engage locking bars on a container or other devices that may perhaps rely on locks and chains to secure components together. The container chassis coupling device, when engaged with a container door, prevents doors on a container from opening by preventing the locking bars from being opened. A node device may be coupled to a node securing element on the container chassis coupling device and may include a node device movement sensor (e.g., a Hall effect sensor and magnet) that detects movement of the node device relative to the container. Additionally, a seal that conforms to the container locking device may be positioned over the container locking device and coupled with a seal presence sensor on the node device. The seal may include a conductive layer that when tampered with causes the node device to record a security event and, in some embodiments, report the security event to a user via a network, which may include a position (e.g., a geophysical coordinate of the container (e.g., latitude, longitude, altitude, and/or other coordinate that would be apparent to one of skill in the art) determined from a positioning system (e.g., a Global Positioning System (GPS)) included in the node device when the security event occurred. As such, the systems and method of the present disclosure provide a container closure with the container locking device that is relatively easy to add and remove from the container closure coupled to the container during a container lifecycle but difficult to counterfeit and coverup any unsecured access. The container closure node system also maintains a low profile relative to the container such that conventional tools can be used and stacking of the containers may be performed.
Although illustrative embodiments have been shown and described, a wide range of modification, change and substitution is contemplated in the foregoing disclosure and in some instances, some features of the embodiments may be employed without a corresponding use of other features. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the embodiments disclosed herein.