Shipping container seal monitoring device, system and method

• US 7,936,266 B2
• Filed: 10/29/2007
• Issued: 05/03/2011
• Est. Priority Date: 10/27/2006
• Status: Expired due to Fees

• Current Assignee: Maritime Container Security, Inc.
• Original Assignee: Maritime Container Security, Inc.
• Inventors: Mandry, James Edward, Vrablik, Ed Allen, Holigan, David James, Prince, Douglas Webster, Francis, Richard Hugh
• Primary Examiner(s): Wu; Daniel
• Assistant Examiner(s): Tang; Son M
• Application Number:
  US11/926,669
• Publication Number:
  US 20080252084A1
• Time in Patent Office: 1,282 Days
• Field of Search: 340/538.17, 340/539.13, 340/539.22, 340/545.1, 340/539.31
• US Class Current: 340/545.1
• CPC Class Codes: G08B 13/08 by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
• CPC Class Codes: G09F 3/0335 using RFID tags
• CPC Class Codes: G09F 3/0352 using cable lock
• CPC Class Codes: G09F 3/0376 using a special technique to detect tampering, e.g. by ultrasonic or optical means
• CPC Class Codes: Y10T 292/494 Interengaging shackle ends, inclosing housing

Abstract

A container seal device is provided that comprises a seal device for a shipping container, comprising a first unit that is affixed to a shipping container. A control system is contained in the first unit containing a control system. A second unit is provided that is configured to engage with an element of a door of a shipping container to which the first unit is affixed and to electrically connect with the control system in the first unit. The control system in the first unit is configured to detect a breach of the second unit indicative of access being made to the shipping container.

Claims

1. A container monitoring system comprising:

an administration facility and a seal device for a shipping container;

the seal device comprising;

a first unit that is configured to be affixed to a shipping container, the first unit containing a control system and comprising a connector;

a second unit that is configured to engage with an element of a door of a shipping container to which the first unit is affixed and to electrically connect with the control system in the first unit, wherein the second unit comprises a connector and a cable having a first end and a second end, the first end of the cable connected to the connector of the second unit and the connector of the second unit being configured to mate and electrically connect with the connector of the first unit, and comprising a wire within the cable that extends substantially the entire length of the cable;

wherein the second unit comprises a memory that stores data indicating which of a plurality of function types the seal device is to perform when the second unit is electrically connected to the first unit;

wherein the first unit comprises a housing that contains the control system and having a passageway that is configured to permit the second end of the cable to pass through but which prevents the cable from being withdrawn from the passageway once it is has been inserted without cutting the cable;

wherein the control system is configured to generate a signal having a predetermined unique time-varying pulse train pattern that is applied to the wire at the first end of the cable so that the wire acts like a broadcast antenna to emit the pulse train, and wherein the control system comprises a detector that is configured to detect energy radiated from the wire along a length portion of the cable that is contained within the passageway of the housing to verify that the cable connected to the first unit is the same cable that is inserted into the passageway of the housing by analyzing the detected energy to determine whether it contains the same predetermined time-varying pulse train pattern applied to the wire at the first end of the cable;

wherein the control system of the first unit comprises a main controller that detects when the second unit is electrically connected to the first unit and establishes an armed state during which the main controller monitors conditions of the second unit to detect a breach of the second unit that is indicative of access to the shipping container to which the first unit is attached;

wherein the main controller in the first unit generates one or more disarm identifiers for the seal device depending on the function type the seal device is configured to perform;

wherein the control system of the first unit comprises a global positioning system (GPS) device that receives global positioning signals in order to determine a position of the shipping container to which the first unit is affixed, and one or more communication modules capable of wireless communication for transmitting the position of the shipping container; and

wherein the administration facility communicates with the seal device in order to track conditions of the seal device including the geographical position of the seal device and occurrence of a breach of the second unit during the armed state and to transmit a disarm message to the first unit, and wherein the main controller of the first unit is responsive to the disarm message to activate a visual indicator on the first unit.

2. The container monitoring system of claim 1, wherein the cable further comprises a twisted pair wire loop extending therethrough, and wherein the control system is configured to supply a pulse train to the twisted pair wire loop at a slower rate than the pulse train supplied to the wire, wherein the control system is further configured to detect radiation from the twisted pair wire loop in the passageway of the housing for further verifying that the cable connected to the first unit is the same cable that is inserted into the passageway of the housing, and wherein the main controller establishes the armed state once the cable has been inserted into the passageway.

3. The container monitoring system of claim 1, wherein the cable comprises one or more conductors and/or optical fibers, and the main controller monitors the one or more conductors and/or optical fibers to detect when the cable is cut.

4. The container monitoring system of claim 1, and further comprising at least one sensor that is coupled to the main controller in the first unit and which detects a condition indicative of an intrusion into the shipping container.

5. The container monitoring system of claim 4, wherein the at least one sensor comprises an acoustic sensor that monitors vibrations in a wall of the shipping container.

6. The container monitoring system of claim 1, wherein the main controller in the first unit generates a disarming confirmation message for transmission via one of the communication modules to the administration facility upon determining that the seal device has been breached at a geographical position where a breach of the seal device is authorized.

7. The container monitoring system of claim 1, wherein the second unit is configured for a single use and is disposable after the single use.

8. The container monitoring system of claim 1, and further comprising a digital camera coupled to the main controller of the first unit, wherein the digital camera is positioned in the first unit so as to capture images of a person attempting access into the container through the container door or interacting with the first unit or second unit.

9. An apparatus, comprising:

a housing unit that is configured to attach to a shipping container, wherein the housing unit contains a control system comprising one or more wireless communication modules and an acoustic sensor unit configured to acoustically couple to a surface of the shipping container to detect acoustic energy therefrom and convert the detected acoustic energy into electrical signals, and a processor that is configured to analyze the electrical signals for comparison against stored waveform signatures of sources that are indicative of a potential unauthorized intrusion into the shipping container;

a seal unit comprising an engaging member that is configured to engage with a portion of a door mechanism of a shipping container to which the housing unit housing is attached, and an electrical connector attached to the engaging element and configured to electrically connect to the control system in the housing unit, wherein the seal unit comprises a power source that supplies electrical power to the control system when connected thereto;

wherein the control system in the control unit housing detects a breach of the seal unit that is indicative of access being made to the shipping container and a potential unauthorized intrusion to the shipping container based on detected acoustic energy and transmits a message indicating the breach or potential unauthorized intrusion via the one or more wireless communication modules; and

wherein housing unit comprises a power source to power the control system when the seal unit is not electrically connected to the control system, and wherein the power source of the housing unit is rechargeable by said power source in the seal unit when the seal unit is electrically connected thereto.

10. The apparatus of claim 9, wherein the control system of the housing unit comprises a main controller that establishes an armed state when the seal unit electrically connects to the control unit and thereafter monitors conditions of the seal unit to detect a breach of the seal unit indicative of access to the shipping container.

11. The apparatus of claim 9, wherein the acoustic sensor unit comprises first and second acoustic couplers configured to be mounted or otherwise acoustically coupled to a surface of the shipping container, wherein the first acoustic coupler is configured to detect relatively high frequency vibrations and the second acoustic coupler is configured to detect relatively low frequency vibrations, and wherein the processor is configured to be coupled to the first and second acoustic couplers and to analyze output of the first and second acoustic couplers to determine whether there is a potentially unauthorized intrusion into the shipping container.

12. The apparatus of claim 11, wherein the housing unit further comprises a motion detector, and wherein the processor is coupled to the motion detector and is further configured to analyze the outputs of the first and second acoustic couplers so as to take into account motion of the shipping container based on output from the motion detector.

13. The apparatus of claim 11, wherein the housing unit further comprises a motion detector, and wherein the processor is coupled to the motion detector and is further configured to analyze output of the motion detector and acoustic sensors to detect motion indicating that the apparatus is on a moving vessel and to control supply of power to various components of the apparatus to conserve power due to a lower likelihood of intrusion to the shipping container when it is a moving vessel.

14. The apparatus of claim 13, and further comprising at least one communication receiver and a battery power supply, wherein the processor is further configured to selectively power up the communication receiver and motion detector based on stored configuration parameters and battery level.

15. An apparatus comprising:

first means for housing a control system and for attaching to a door of a shipping container, wherein the first means comprises means for determining a position of the first means and means for wireless communicating information stored in the control system of the first means to a remote location;

second means for engaging with an element of the door of a shipping container and for electrically connecting with the control system of the first means;

wherein the control system in the first means being configured to detect a breach of the second means indicative of access being made the shipping container;

wherein the first means comprises a keypad device configured to receive input of an alphanumeric identifier used to arm or disarm the control system;

wherein said control system stores an identifier assigned to said first means and said second means comprises a memory that stores an identifier assigned to said second means;

wherein the second means comprises a cable member and a connector unit at one end of the cable member that is configured to electrically connect with the first means;

wherein the connector unit comprises a control system comprising a memory that is configured to store the identifier assigned to the second means, and wherein the control system in the first means is configured to receive the identifier of the second means when the connector unit of the second means is connected to the first means.

16. The apparatus of claim 15, and further comprising means for sensing an intrusion into the shipping container, and wherein said control system generates a message for transmission to a remote location via said means for wireless communicating.

17. The apparatus of claim 15, wherein said first means further comprises means for capturing a digital image outside of said first means of a person attempting access into the container or entering an alphanumeric identifier into the keypad.

18. The apparatus of claim 15, wherein the second means comprises an elongated cable and one or more electrical conductors and/or optical fibers contained in the elongated cable, and wherein the control system monitors a signal representing a characteristic of the one or more electrical conductors and/or optical fibers to detect said beach.

19. A container monitoring system comprising:

an administrative facility and a seal apparatus;

wherein the seal apparatus comprises;

first means for housing a control system and for attaching to a door of a shipping container, wherein the first means comprises means for determining a position of the first means and means for wirelessly communicating information stored in the control system of the first means to a remote location;

second means for engaging with an element of the door of a shipping container and for electrically connecting with the control system of the first means;

wherein the control system in the first means being configured to detect a breach of the second means indicative of access to the shipping container; and

wherein the first means comprises a keypad device configured to receive input of an alphanumeric identifier used to arm or disarm the control system;

wherein the administration facility communicates with the seal apparatus in order to track conditions of the seal apparatus including the geographical position of the seal apparatus and occurrence of said breach; and

wherein the administration facility stores data comprising identifiers for the first means and for the second means, and user party identifiers that are associated with said identifiers for the first means and the second means, and the administration facility is configured to compare the identifier for a second means received from the seal apparatus against a database to determine whether the identifier of the second means is authorized.

20. The container monitoring system of claim 19, wherein said control system stores an identifier assigned to said first means and said second means comprises a memory that stores an identifier assigned to said second means, wherein the second means comprises a cable member and a connector unit at one end of the cable member that is configured to electrically connect with the first means, and wherein the connector unit comprises a control system comprising a memory that is configured to store the identifier assigned to the second means, and wherein the control system in the first means is configured to receive the identifier of the second means when the connector unit of the second means is connected to the first means.