Object monitoring, locating, and tracking system and method employing RFID devices

• US 8,686,861 B2
• Filed: 12/30/2009
• Issued: 04/01/2014
• Est. Priority Date: 08/26/2004
• Status: Active Grant

• Current Assignee: Avante International Technology
• Original Assignee: Panasec Corporation
• Inventors: Chung, Kevin Kwong-Tai, Chu, Cynthia Ting-Wah, Li, Jing Jian
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US12/650,054
• Publication Number:
  US 20100164710A1
• Time in Patent Office: 1,553 Days
• Field of Search: 340/505, 340/539.1, 340/539.13, 340/568.1, 340/572.1, 340/572.4, 340/572.7, 340/572.8, 340/993, 340/994, 340/5.92, 235/380, 235/385, 455/456.1, 455/456.6, 701/207, 701/517
• US Class Current: 340/572.8
• CPC Class Codes: B60R 2325/105 Radio frequency identification data [RFID]
• CPC Class Codes: G01S 5/0018 Transmission from mobile station to base station
• CPC Class Codes: G01S 5/0294 Trajectory determination or predictive filtering, e.g. target tracking or Kalman filtering
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G07G 1/009 the reader being an RFID reader
• 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: G08B 13/2462 Asset location systems combined with EAS inventory, tracking, logistic G06Q10/00; entrance control systems G07C9/00
• CPC Class Codes: G08G 1/20 Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles

Abstract

An RFID system and method utilizes an RFID device, wherein the RFID device senses a thing or condition interior to a closable container at or proximate the RFID device and transmits messages. The messages include information uniquely identifying the RFID device and information relating to the thing or condition sensed at or proximate the RFID device. Information in the received messages relating to the thing or condition sensed at or proximate the RFID device of messages are employed for determining whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof, whereby an opening of and/or tampering with the container may be detected. Messages received from the RFID device, as well as an indication of a condition, may be relayed to a remote location.

Claims

1. A system for monitoring a container having an exterior surface with a closable opening therein that when closed defines a closable substantially shielded interior space, said system comprising:

an RFID device comprising;

a sensor of a thing or condition interior to a closable container at or proximate said RFID device;

a memory having stored therein unique identifying information and information representing the predetermined power levels at which messages are transmitted;

a modulator for modulating information relating to the thing or condition sensed by said sensor and coupled to said memory for modulating the unique identifying information and information representing the predetermined power levels at which messages are transmitted stored in said memory; and

a transmitter coupled to said modulator for transmitting messages, wherein each of the messages includes the modulated information;

an antenna coupled to the transmitter of said RFID device for transmitting and/or receiving electromagnetic signals; and

a receiving device exterior to the container, said receiving device comprising a receiver for receiving messages transmitted by said RFID device;

wherein messages transmitted by the RFID device at least when the container is not closed are received by the receiving device exterior to the container; and

wherein at least the unique identifying information of said RFID device and the information representing the predetermined power level at which the message is transmitted, and optionally the information relating to the thing or condition sensed by said sensor of the messages received by said receiving device exterior the container are processed for providing an indication of whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof,

whereby an opening of and/or tampering with the container may be detected.

2. The system of claim 1 wherein messages that are transmitted when the closable opening of the container is closed may be substantially attenuated by the container, and wherein messages that are transmitted when the closable opening of the container is not closed may not be substantially attenuated by the container.

3. The system of claim 1 wherein a receiver of said receiving device exterior the container develops a signal representative of received signal strength of the messages received, and wherein the information representative of received signal strength is processed with the information relating to the thing or condition sensed by said sensor for providing the indication of whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof.

4. The system of claim 1:

wherein the information representing the predetermined power levels at which messages are transmitted stored in the memory of said RFID device includes codes representing one or more transmitter power levels;

wherein the modulator of said RFID device modulates the unique identifying information and the transmitter power level codes stored in said memory;

wherein said transmitter transmits messages via said antenna, wherein each of the messages includes the modulated unique identifying information and a modulated transmitter power level code, wherein the power level of said transmitter is controlled in accordance with the power level code to correspond to the power level represented by the power level code in each transmitted message when each message is transmitted.

5. The system of claim 4 wherein a receiver of said receiving device exterior the container receives the transmitted messages and develops a signal representative of the received signal strength, and wherein the signal representative of the received signal strength and a power level code of the received message are processed with the information relating to the thing or condition sensed by said sensor for providing the indication of whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof.

6. The system of claim 1 wherein sensor information relating to the thing or condition sensed by said sensor is stored in the memory of said RFID device, and wherein said modulator modulates the sensor information stored in the memory in messages for transmission by the transmitter.

7. The system of claim 6 wherein:

the sensor information stored in the memory of said RFID device may be transmitted by the transmitter of said RFID device at a present time, at a future time, at a predetermined time, periodically, or in response to an interrogating signal, or any combination of the foregoing; and

/or

the sensor information is transmitted via wires, telephone, a radio link, a network, the Internet, an intranet, a LAN, a WAN, a wireless network, an ad hoc network, a satellite, or via a combination of any two or more thereof.

8. The system of claim 1 wherein the thing or condition sensed by said sensor includes an environmental condition, temperature, pressure, position, location, motion, acceleration, impact, distance, inertial information, magnetic field, electrical continuity, altitude, a physical parameter, moisture, humidity, a chemical, a medical parameter, a biological substance and/or agent, radioactivity, optical, light, infrared, an image, or an electromagnetic field, or any combination of the foregoing.

9. The system of claim 8 wherein sensor information relating at least to a chemical, a medical parameter, a biological substance and/or agent, and/or radioactivity, is monitored for providing an indication of agents and/or materials of a sort that could be used in a weapon of mass destruction.

10. The system of claim 1 wherein said sensor includes:

an electronic-based sensor, an analog sensor, a digital sensor, a micro-electro-mechanical system (MEMS) sensor, an air mover, a micro-motion fan, a piezo-electric air mover, or a combination thereof.

11. The system of claim 1 further comprising a second RFID device including a sensor disposed in the interior space of the container and a second receiving device proximately exterior the container, wherein at least information relating to the thing or condition sensed by the sensors of said RFID devices received by each of said receiving devices is indicative of whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof.

12. The system of claim 1 wherein said receiving device further comprises a transmitter for transmitting the messages received from said RFID device interior the container and a signal representative of the received signal strength of the received messages, said system further comprising:

a processor for receiving the messages transmitted by said receiving device and for processing the information therein for determining a condition of the container, including whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof, or for determining the location of said RFID device, and for providing an indication of any one or any combination of the foregoing.

13. The system of claim 12 further comprising an object RFID device associated with an object that is related to a given container by a predetermined relationship, wherein said processor includes a database relating the RFID device associated with the given container and the object RFID device.

14. The system of claim 13 wherein the predetermined relationship includes proximity of the object and the given container, or absence of proximity of the object and the given container, or both, and wherein said processor provides an indication of whether the object and the given container are in the predetermined relationship.

15. The system of claim 13 wherein the object includes a carrier carrying the given container, a vehicle carrying the given container, a driver or operator of a carrier carrying the given container, a driver or operator of a vehicle carrying the given container, an inspector of the given container, a maintenance or service worker for the given container, or a person not authorized to be proximate the given container, or any combination of the foregoing.

16. The system of claim 1 further comprising:

a database for storing at least the information contained in the received messages, wherein at least the unique identifying information of said RFID device and the information relating to the thing or condition sensed by said sensor of the messages received by said receiving device exterior the container are stored in the database, and

wherein information stored in the database is accessible via wire, cable, telephone, a radio link, a network, the Internet, an intranet, a local area network, a wide area network, a wireless network, an ad hoc network, a satellite, e-mail, a computer, a laptop computer, a personal digital assistant device, a Blackberry-enabled device, a Wi-Fi-enabled device, a cell phone, a WAP-enabled cell phone, or a pager, or any combination of the foregoing.

17. The system of claim 1 wherein said receiving device:

includes a GPS locator or a location determining device,

includes a physical seal for the closable opening of the container,

includes an electronic seal for the closable opening, or

is employed in conjunction with a physical seal, an electronic seal, or a physical and electronic seal for the closable opening, or

any combination thereof.

18. The system of claim 1 wherein said receiving device further comprises a transmitter for transmitting the messages received from said RFID device interior the container thereby to relay messages received from said RFID device, and wherein said receiving device:

includes a GPS locator or a location determining device,

includes a physical seal for the closable opening of the container,

includes an electronic seal for the closable opening, or

is employed in conjunction with a physical seal, an electronic seal, or a physical and electronic seal for the closable opening, or

any combination thereof.

19. A method for monitoring a container having at least one RFID device interior thereto, said method comprising:

providing an RFID device, wherein the RFID device senses a thing or condition interior to a closable container at or proximate the RFID device and transmits messages at a plurality of different predetermined power levels;

wherein the messages transmitted include information uniquely identifying the RFID device and information representing the predetermined power levels at which the messages are transmitted, and wherein messages further include information relating to the thing or condition sensed at or proximate the RFID device,

receiving messages transmitted by the RFID device by a receiving device exterior the closable container; and

determining from the information uniquely identifying the RFID device and the information representing the predetermined power level at which the message is transmitted, and optionally from the information relating to the thing or condition sensed at or proximate the RFID device, of messages received from the RFID device whether the closable container is closed, is not closed, has been closed, or has been not closed, or any combination thereof,

whereby an opening of and/or tampering with the closable container may be detected.

20. The method of claim 19 wherein messages that are transmitted when the closable container is closed may be substantially attenuated by the closable container, and wherein messages that are transmitted when the closable container is not closed may not be substantially attenuated by the closable container.

21. The method of claim 19 wherein the information relating to the thing or condition sensed at or proximate the RFID device of the messages received when the closable container is closed is different than the information relating to the thing or condition sensed at or proximate the RFID device of the messages received when the closable container is not closed, and

wherein said determining includes processing the different information relating to the thing or condition sensed at or proximate the RFID device of the messages received for providing an indication of whether the closable container is closed, is not closed, has been closed, or has been not closed, or any combination thereof.

22. The method of claim 19 further comprising:

representing the power levels of the messages received by the receiving device exterior the closable container by an indication of received signal strength,

wherein the received signal strength of the messages received when the closable container is closed is less than the received signal strength of the messages received when the closable container is not closed, and

wherein said determining includes processing the indication of received signal strength of the messages received for providing an indication of whether the closable container is closed, is not closed, has been closed, or has been not closed, or any combination thereof.

23. The method of claim 19 further comprising:

representing the power levels of the messages received by the receiving device exterior the closable container by an indication of received signal strength; and

wherein said determining includes determining from the indication of received signal strength, or from the information representative of the power level of messages received, or from the indication of received signal strength and from the information representative of the power level of messages received, whether the closable container is closed, is not closed, has been closed, or has been not closed, or any combination thereof.

24. The method of claim 19 further comprising:

storing in a memory of the RFID device the information relating to the thing and/or the condition at or proximate the RFID device, and

transmitting messages including the information stored in the memory of the RFID device relating to the thing and/or the condition at or proximate the RFID device.

25. The method of claim 24 wherein said transmitting messages comprises transmitting at a present time, at a future time, at a predetermined time, periodically, in response to an interrogation signal, or at a programmable power level, or any combination of the foregoing.

26. The method of claim 19 wherein the messages including information relating to the thing or condition sensed at or proximate the RFID device is transmitted at a present time, at a future time, at a predetermined time, periodically, or in response to an interrogating signal, or any combination of the foregoing;

and/or

the messages including such information are transmitted via wires, telephone, a radio link, a network, the Internet, an intranet, a LAN, a WAN, a wireless network, an ad hoc network, a satellite, or via a combination of any two or more thereof.

27. The method of claim 19 wherein the thing and/or condition sensed by the RFID device includes an environmental condition, temperature, pressure, position, location, motion, acceleration, impact, distance, inertial information, magnetic field, electrical continuity, altitude, a physical parameter, moisture, humidity, a chemical, a medical parameter, a biological substance and/or agent, radioactivity, optical, light, infrared, an image, or an electromagnetic field, or any combination of the foregoing.

28. The method of claim 27 wherein information relating at least to a chemical, a medical parameter, a biological substance and/or agent, and/or radioactivity, is monitored for providing an indication of agents and/or materials of a sort that could be used in a weapon of mass destruction.

29. The method of claim 19 wherein the thing or condition at or proximate the RFID device is sensed by an electronic-based sensor, an analog sensor, a digital sensor, a micro-electro-mechanical system (MEMS) sensor, an air mover, a micro-motion fan, a piezo-electric air mover, or a combination thereof.

30. The method of claim 19 wherein the RFID device transmitting messages comprises periodically transmitting messages from each of two RFID devices at different locations interior to the closable container;

wherein said receiving messages transmitted by the RFID device comprises receiving messages transmitted by the two RFID devices via two receiving devices at different locations exterior the closable container;

wherein said determining includes determining from the information relating to the things or conditions sensed at or proximate the two RFID devices or from the power levels of the messages transmitted by the two RFID devices that are received by the first and second receiving devices whether the closable container is closed, is not closed, has been closed, or has been not closed, or any combination thereof.

31. The method of claim 19 further comprising:

relaying the received messages transmitted by the RFID device, wherein at least some substantially attenuated messages may not be received; and

processing the relayed messages for monitoring the RFID device, said processing comprising;

determining from the relayed messages the location of the RFID device, or

determining from the relayed messages whether the closable container is closed, is not closed, has been closed, or has been not closed, or any combination thereof, or

both of the foregoing.

32. The method of claim 19 further comprising relating an object RFID device associated with an object to a given closable container by a predetermined relationship, and storing in a database information relating the RFID device interior the given closable container and the object RFID device.

33. The method of claim 32 wherein the predetermined relationship includes proximity of the object and the given closable container, or absence of proximity of the object and the given closable container, or both, and further comprising providing an indication of whether the object and the given closable container are in the predetermined relationship.

34. The method of claim 32 wherein the object includes a carrier carrying the given closable container, a vehicle carrying the given closable container, a driver or operator of a carrier carrying the given closable container, a driver or operator of a vehicle carrying the given closable container, an inspector of the given closable container, a maintenance or service worker for the given closable container, or a person not authorized to be proximate the given closable container, or any combination of the foregoing.

35. The method of claim 19 further comprising:

storing at least the information contained in the received messages in a database, wherein at least the unique identifying information of the RFID device and the information relating to the thing or condition sensed at or proximate the RFID device of the messages received by the receiving device exterior the container are stored in the database, and

wherein information stored in the database is accessible via wire, cable, telephone, a radio link, a network, the Internet, an intranet, a local area network, a wide area network, a wireless network, an ad hoc network, a satellite, e-mail, a computer, a laptop computer, a personal digital assistant device, a Blackberry-enabled device, a Wi-Fi-enabled device, a cell phone, a WAP-enabled cell phone, or a pager, or via any combination of the foregoing.

36. The method of claim 19 further comprising:

monitoring the information relating to a thing or condition at or proximate the RFID device for identifying an unexpected and/or suspicious event;

providing a report, notification and/or alert of the unexpected and/or suspicious event to a third party.

37. The method of claim 36 wherein said providing a report, notification and/or alert of the unexpected and/or suspicious event to a third party results in the inspection, interception, and/or diversion of the container having the RFID device interior thereto either upon or before the container arrives or is brought into a terminal, port or destination location.

38. The method of claim 36 wherein the third party includes a monitoring agency, a military agency, a security agency, a homeland security agency, a customs agency, a transportation agency, an immigration agency, a border patrol, a destination agency, and/or police.

39. The method of claim 19 further comprising:

transmitting the messages received from said RFID device interior the container thereby to relay messages received from the RFID device, and;

providing a GPS locator or a location determining device, providing a physical seal for the closable container, providing an electronic seal for the closable container, or employing a physical and/or electronic seal for the closable container, or any combination thereof.

40. The method of claim 19 wherein the receiving device:

includes a GPS locator or a location determining device,

includes a physical seal for the closable opening of the container,

includes an electronic seal for the closable opening, or

is employed in conjunction with a physical seal, an electronic seal, or a physical and electronic seal for the closable opening, or

any combination thereof.

41. A system for monitoring a closable container comprising:

an RFID device, wherein the RFID device senses a thing or condition interior to a closable container at or proximate the RFID device and transmits messages at a plurality of different predetermined power levels;

wherein the messages transmitted include information uniquely identifying the RFID device and information representing the predetermined power levels at which the messages are transmitted, and wherein messages further include information relating to the thing or condition sensed at or proximate the RFID device;

means for receiving messages transmitted by the RFID device by a receiving device exterior the closable container; and

means for determining from the information uniquely identifying the RFID device and the information representing the predetermined power level at which the message is transmitted, and optionally from the information relating to the thing or condition sensed at or proximate the RFID device, of messages received from the RFID device whether the closable container is closed, is not closed, has been closed, or has been not closed, or any combination thereof,

whereby an opening of and/or tampering with the closable container may be detected.

42. The system of claim 41 wherein messages that are transmitted when the closable container is closed may be substantially attenuated by the closable container, and wherein messages that are transmitted when the closable container is not closed may not be substantially attenuated by the closable container.

43. The system of claim 41 wherein said means for receiving:

includes a GPS locator or a location determining device,

includes a physical seal for the closable opening of the container,

includes an electronic seal for the closable opening, or

is employed in conjunction with a physical seal, an electronic seal, or a physical and electronic seal for the closable opening, or

any combination thereof.

44. The system of claim 43 wherein said means for receiving further comprises:

a transmitter for transmitting the messages received from said RFID device interior the container thereby to relay messages received from said RFID device.

45. The system of claim 41 wherein said means for determining comprises:

a processor for receiving the messages transmitted by said means for receiving and for processing the information therein for determining a condition of the container, including whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof, or for determining the location of said RFID device, and for providing an indication of any one or combination of the foregoing.

46. The system of claim 41 wherein the thing or condition sensed includes an environmental condition, temperature, pressure, position, location, motion, acceleration, impact, distance, inertial information, magnetic field, electrical continuity, altitude, a physical parameter, moisture, humidity, a chemical, a medical parameter, a biological substance and/or agent, radioactivity, optical, light, infrared, an image, or an electromagnetic field, or any combination of the foregoing.

47. The system of claim 41 wherein the thing or condition sensed relates at least to a chemical, a medical parameter, a biological substance and/or agent, and/or radioactivity, and is monitored for providing an indication of agents and/or materials of a sort that could be used in a weapon of mass destruction.