Method and apparatus for providing information pertaining to vehicles located along a predetermined travel route

• US 6,832,153 B2
• Filed: 11/27/2002
• Issued: 12/14/2004
• Est. Priority Date: 11/27/2002
• Status: Active Grant

• Current Assignee: Calamp Wireless Networks Inc. (CalAmp Corporation)
• Original Assignee: Mobilearia (Wireless Matrix Corporation)
• Inventors: Thayer, Peter A., Mahesh, Subramanian, Dange, Milind M., Babichev, Alexander
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): Gibson, Eric M.
• Application Number:
  US10/306,679
• Publication Number:
  US 20040102896A1
• Time in Patent Office: 748 Days
• Field of Search: 701/3, 701/14, 701/207, 701/210, 701/300, 340/988, 340/989, 244/175
• US Class Current: 701/207
• CPC Class Codes: G08G 1/207 with respect to certain areas, e.g. forbidden or allowed areas with possible alerting when inside or outside boundaries

Abstract

A system for tracking a fleet of vehicles, such as trucks or aircraft, includes a set of vehicle processing systems associated with each vehicle. Each vehicle processing system receives a travel route matrix from a remote server, and generates periodic vehicle position information which is compared with a propagating wave associated with different segments, or corridors, of the matrix. When the vehicle position is determined to lie outside the propagating wave and a geo-corridor at a particular point in time, alerts are sent to the server notifying the server of same. Corrective action can then be taken, such as remotely disabling the vehicle, or alerting a fleet manager.

Claims

1. A method for providing a remote server with information regarding vehicle location relative to a travel route, the method comprising:

defining a zone whose location varies in time relative to the travel route;

determining the location of the vehicle at multiple points in time;

comparing, in the vehicle, the location of the vehicle at at least one of the multiple points in time with a contemporaneous location of the zone;

generating, in the vehicle, a notification signal when the comparison indicates that the vehicle location is outside the zone; and

transmitting the notification signal from the vehicle to the remote server such that the remote server is notified by said transmitted notifiation signal that the vehicle is outside the zone.

2. The method of claim 1, wherein the location of the vehicle is determined onboard the vehicle.

3. The method of claim 1, wherein the vehicle is an aircraft whose location is monitored during flight.

4. The method of claim 3, wherein the location information includes altitude information.

5. The method of claim 1, wherein one or both the location and the size of the zone varies as a function of a geographical region associated with the zone.

6. The method of claim 1, wherein one or both the location and the size of the zone varies as a function of one or more learning parameters associated with the travel route.

7. The method of claim 1, further comprising adapting to historical data so as to minimize false notification signal transmissions.

8. The method of claim 1, further comprising adapting to historical data so as to minimize route deviation tolerance.

9. The method of claim 1, wherein the notification signal includes “

behind schedule” and

“

ahead of schedule”

alerts, and wherein system performance is improved by adaptation to historical data so as to minimize false “

behind schedule” and

“

ahead of schedule”

alerts.

10. A system for providing information regarding vehicle location relative to a travel route, the system comprising:

a server for generating a matrix associated with the travel route; and

a processing system disposed in the vehicle remotely, from the server, the processing system generating position information and comparing the position information with the position of a zone whose location varies over time, the processing system forwarding an alert to the server when the position information indicates that the position of the processing system is outside the zone such that the server is notified by said forwarded alert that the vehicle is outside the zone.

11. The system of claim 10, wherein the matrix is generated by the server and forwarded to the processing system.

12. The system of claim 11, wherein the vehicle is an aircraft, and wherein the position information includes altitude information.

13. The system of claim 10, wherein the matrix includes one or more corridors corresponding to a geographical region associated with the travel route and through which associated zones are representationally propagated.

14. The system of claim 13, wherein the propagation of each zone in an associated corridor is a function of the geographical region corresponding to the corridor.

15. The system of claim 13, wherein the propagation of each zone in an associated corridor is a function of one or more learning parameters corresponding to the corridor.

16. The system of claim 10, wherein system performance is improved by adaptation to historical data so as to minimize false alerts.

17. The system of claim 10, wherein system performance is improved by adaptation to historical data so as to minimize route deviation tolerance.

18. The system of claim 10, wherein the processing system further generates and sends to the server “

behind schedule” and

“

ahead of schedule”

alerts, and wherein system performance is improved by adaptation to historical data so as to minimize false “

behind schedule” and

“

ahead of schedule”

alerts.

19. A system for tracking one or more fleets of vehicles each having one or more vehicles, the system comprising:

at least one server for generating a geo-matrix associated with each fleet; and

a set of vehicle processing systems associated with each fleet, each vehicle processing system being disposed in a vehicle of the fleet and generating position information relating to the position of said vehicle at predetermined time intervals relative to a propagating zone defined by the geo-matrix associated with the fleet, the vehicle processing system notifying the server when the vehicle is determined to lie outside a geographical region associated with the propagating zone by forwarding “

a left route”

alert to the server indicative of same.

20. The system of claim 19, wherein the vehicles are aircraft, and the position information includes altitude information.

21. The system of claim 19, wherein the server is connected to the Internet such that fleet information can be obtained online.

22. The system of claim 21, wherein the fleet information is specific to a fleet client.

23. The system of claim 22, wherein the fleet client is authenticated before release of the fleet information.

24. The system of claim 19, wherein the vehicle can be remotely disabled.

25. The system of claim 19, wherein system performance is improved by adaptation to historical data so as to minimize false “

left route”

alerts.

26. The system of claim 19, wherein system performance is improved by adaptation to historical data so as to minimize route deviation tolerance.

27. The system of claim 19, wherein notifying the server further comprises sending “

behind schedule” and

“

ahead of schedule”

alerts, and wherein system performance is improved by adaptation to historical data so as to minimized false “

behind schedule” and

“

ahead of schedule”

alerts.

28. The system of claim 19, wherein system performance is improved by adaptation to historical data so as to decrease an estimated delivery window associated with the arrival of the vehicle at a specified location.

29. A system for tracking one or more fleets of vehicles each having one or more vehicles, the system comprising:

at least one server for generating a geo-matrix associated with each fleet; and

a set of vehicle processing systems associated with each fleet, each vehicle processing system being disposed in a vehicle of the fleet and generating position information relating to the position of said vehicle at predetermined time intervals relative to a propagating zone defined by the geo-matrix associated with the fleet, the vehicle processing system notifying the server when the vehicle is determined to lie outside a geographical region associated with the propagating zone by forwarding a “

left route”

alert to the server indicative of same, wherein system performance is improved by adaptation to historical data so as to minimize false “

left route”

alerts.

30. A system for tracking one or more fleets of vehicles each having one or more vehicles, the system comprising:

at least one server for generating a geo-matrix associated with each fleet; and

a set of vehicle processing systems associated with each fleet, each vehicle processing system being disposed in a vehicle of the fleet and generating position information relating to the position of said vehicle at predetermined time intervals relative to a propagating zone defined by the geo-matrix associated with the fleet, the vehicle processing system notifying the server when the vehicle is determined to lie outside a geographical region associated with the propagating zone by forwarding one or more of “

left route”

, “

behind schedule” and

“

ahead of schedule”

alerts, wherein system performance is improved by adaptation to historical data so as to minimize false “

behind schedule” and

“

ahead of schedule”

alerts.

31. A system for tracking one or more fleets of vehicles each having one or more vehicles, the system comprising:

at least one server for generating a geo-matrix associated with each fleet; and

a set of vehicle processing systems associated with each fleet, each vehicle processing system being disposed in a vehicle of the fleet and generating position information relating to the position of said vehicle at predetermined time intervals relative to a propagating zone defined by the geo-matrix associated with the fleet, the vehicle processing system notifying the server when the vehicle is determined to lie outside a geographical region associated with the propagating zone by forwarding a “

left route”

alert to the server indicative of same,

wherein system performance is improved by adaptation to historical data so as to decrease an estimated delivery window associated with the arrival of the vehicle at a specified location.