System and method for asset tracking and monitoring

• US 7,265,668 B1
• Filed: 12/07/2004
• Issued: 09/04/2007
• Est. Priority Date: 12/12/2003
• Status: Active Grant

• Current Assignee: SkyBitz, Inc. (Ametek Incorporated)
• Original Assignee: SkyBitz, Inc. (Ametek Incorporated)
• Inventors: Brosius, Jay
• Primary Examiner(s): NGUYEN, PHUNG
• Application Number:
  US11/005,307
• Publication Number:
  US 20070210914A1
• Time in Patent Office: 1,001 Days
• Field of Search: 340/539.22, 340/10.1, 3405721-5729, 340/825.49, 340/568.1, 340/539.13
• US Class Current: 340/539.22
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: G06Q 10/0833 Tracking
• CPC Class Codes: G06Q 50/40 Business processes related to the transportation industry shipping G06Q10/083

Abstract

A multi-mode asset tracking and monitoring system and method is provided that enables comprehensive reporting of asset position, status, and alerts. In one embodiment, the multi-mode system and method is based on the addition of a local network monitoring system to a wide area satellite network monitoring system. In this example, the local network monitoring system would add container presence and status monitoring in crowded environments (e.g., within a port facility, on-board a ship, etc.), while the wide area satellite network monitoring system would provide tracking and monitoring coverage when the container is in dispersed environments. Both the local and wide area monitoring systems work together to provide end-to-end container tracking and monitoring to thereby ensure continuous container tracking and monitoring from container loading to container unloading.

Claims

1. An asset monitoring system, comprising:

a. a data collection and forwarding device at a location where a plurality of assets reside, said data collection and forwarding device being configured to receive sensor information from a monitoring element fixed to a first of said plurality of assets;

b. a mobile satellite terminal fixed to said first asset, said mobile satellite terminal being configured to communicate said sensor information directly with a data center by satellite when said mobile satellite terminal is in view of said satellite; and

c. a satellite transceiver stationed proximate to said location, said satellite transceiver being configured to communicate said sensor information from said data collection and forwarding device only if said mobile satellite terminal is not in view of said satellite.

2. The system of claim 1, wherein said location is a ship yard.

3. The system of claim 1, wherein said location is a truck yard.

4. The system of claim 1, wherein said location is a rail yard.

5. An asset monitoring system fixed to an asset, comprising

a. a first monitoring system portion being operable to communicate directly with a service center via a first satellite communication link;

and

b. a second monitoring system portion being operable to communicate information to a remote monitoring unit using a local network for delivery by said remote monitoring unit to said service center via a second satellite communication link, wherein said delivery by said remote monitoring unit occurs only if said first monitoring system is not in view of said satellite.

6. The system of claim 5, further comprising a server that stores sensor information from a plurality of monitoring systems affixed to assets, said server being operable to communicate sensor information to said remote monitoring unit.

7. The system of claim 6, wherein said server communicates sensor information to said remote monitoring unit using the RS-485 communication protocol.

8. The system of claim 5, wherein said first monitoring system portion and said second monitoring system portion are separate physical units fixed to the asset.

9. An asset monitoring method, comprising:

a. detecting an alert signal from a sensor fixed to an asset;

b. communicating sensor information directly to a service center using a satellite communication link between said service center and a monitoring unit fixed to said asset if said monitoring unit is in view of said satellite; and

c. communicating sensor information to said service center using an alternative communication path that includes a local network link, wherein said communication occurs only if said monitoring unit is not in view of said satellite.

10. The method of claim 9, wherein said alternative communication path includes an Internet connection.

11. The method of claim 9, wherein said alternative communication path includes a leased line.

12. The method of claim 9, wherein said alternative communication path includes a satellite link between a second monitoring unit and said service center.

13. The method of claim 12, wherein sensor information is provided by a server to said second monitoring unit using the RS-485 communication protocol.

14. A monitoring system fixed to an asset, comprising:

a. a first monitoring system portion that transmits sensor information taken from the asset via a wide area satellite based network; and

b. a second monitoring system portion that transmits sensor information taken from the asset via a local area wireless network, wherein said second monitoring system portion is activated only when it is determined that said first monitoring system portion is not in view of said satellite.

15. The system of claim 14, wherein said first monitoring system portion and said second monitoring system portion are housed in separate and distinct units fixed to the asset.